CN108483055B - Cold aggregate on-line screening device of asphalt mixing plant - Google Patents
Cold aggregate on-line screening device of asphalt mixing plant Download PDFInfo
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- CN108483055B CN108483055B CN201810337895.6A CN201810337895A CN108483055B CN 108483055 B CN108483055 B CN 108483055B CN 201810337895 A CN201810337895 A CN 201810337895A CN 108483055 B CN108483055 B CN 108483055B
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- 238000012216 screening Methods 0.000 title claims abstract description 38
- 239000010426 asphalt Substances 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 77
- 238000003860 storage Methods 0.000 claims abstract description 35
- 239000002699 waste material Substances 0.000 claims description 58
- 239000010410 layer Substances 0.000 claims description 30
- 238000009826 distribution Methods 0.000 claims description 20
- 239000002356 single layer Substances 0.000 claims description 20
- 239000000428 dust Substances 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 6
- 230000003584 silencer Effects 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 20
- 239000004575 stone Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G63/00—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations
- B65G63/02—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations with essentially horizontal transit otherwise than by bridge
- B65G63/027—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations with essentially horizontal transit otherwise than by bridge for bulk material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4663—Multi-layer screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/34—Devices for discharging articles or materials from conveyor
- B65G47/46—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points
- B65G47/51—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination
- B65G47/5195—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for materials in bulk
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/005—Control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses an online cold aggregate screening device for an asphalt mixing plant, and relates to the field of screening devices. The cold aggregate online screening device of the asphalt mixing plant comprises a controller, a plurality of storage bins, an output belt conveyor, a conveying belt conveyor, a six-way distributor, a screening device and a plurality of collecting hoppers, wherein each storage bin is provided with a material conveying port connected with the output belt conveyor; the six-way distributor is arranged above the plurality of collecting hoppers, and the conveying belt conveyor is respectively connected with the output belt conveyor and the six-way distributor; the screening device comprises a plurality of vibrating screens, a plurality of collecting pipes and a chute, wherein the vibrating screens are respectively connected with a six-way distributor, the collecting pipes and the chute, and the other end of each collecting pipe is respectively connected with a collecting hopper; the controller respectively controls the output belt conveyor, the conveying belt conveyor, the six-way distributor and the vibrating screens to move. The online cold aggregate screening device for the asphalt mixing plant can effectively screen aggregates according to grading, and is energy-saving and environment-friendly.
Description
Technical Field
The invention relates to the technical field of screening devices, in particular to an online cold aggregate screening device for an asphalt mixing plant.
Background
In the production operation process of the asphalt mixing plant, the hot aggregate transition flash phenomenon often occurs, so that the productivity of the asphalt mixing plant is reduced, the energy consumption is increased, the flash is wasted, and the environment is polluted by dust. The reason is mainly because cold aggregate can not be screened according to grading, and the mixing is serious.
To above phenomenon, this scheme designs a cold aggregate on-line screening plant according to the needs of pitch stirring station, can effectively solve above problem.
Disclosure of Invention
In view of the above, it is necessary to provide an on-line screening device for cold aggregate in an asphalt mixing plant. The online cold aggregate screening device for the asphalt mixing plant can effectively screen aggregates according to grading, qualified aggregates enter a collecting hopper, unqualified aggregates are conveyed away for reuse, energy is saved, environment is protected, and capacity output of a production line of the asphalt mixing plant is effectively guaranteed.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an online screening plant of cold aggregate of asphalt mixing plant, includes controller, a plurality of storage silo that set up side by side, output belt feeder, conveyer belt feeder, six-way tripper, screening plant and a plurality of collection hopper that set up side by side, the controller is installed outside the storage silo, every storage silo's bottom has all offered the material conveying mouth, output belt feeder installs in all the below of material conveying mouth, output belt is equipped with to the movable cover on the output belt feeder; the six-way distributor is arranged above the plurality of collecting hoppers and connected with the plurality of collecting hoppers, one end of the conveyor belt is connected with the output belt conveyor, the other end of the conveyor belt is connected with the six-way distributor, and the conveyor belt is movably sleeved with a conveyor belt; the screening device comprises a plurality of vibrating screens, a plurality of collecting pipes and a chute, wherein the collecting pipes and the chute are arranged below the vibrating screens, the vibrating screens and the chute are obliquely arranged relative to a horizontal plane respectively, the high end of each vibrating screen is connected with the six-way distributor, the low end of each vibrating screen is provided with a discharge hole and a waste material hole respectively, each discharge hole is connected with one collecting pipe respectively, each waste material hole is connected with the chute, one end of each collecting pipe far away from the vibrating screen is connected with one collecting hopper respectively, and the vibrating screens are connected with the controller; the controller respectively controls the output belt conveyor, the conveying belt conveyor, the six-way distributor and the vibrating screen to move.
Preferably, the six-way distributor comprises a distributing bin and six feeding pipes which are arranged below the distributing bin and connected with the bottom of the distributing bin, the distributing bin is provided with an inner cavity which is communicated with the conveying belt, the bottom end of the distributing bin is provided with six discharging openings which are respectively communicated with the inner cavity, and each discharging opening is connected with one feeding pipe;
the inner cavity is divided into an upper bin and a lower bin which are communicated, the lower bin is divided into a left chamber and a right chamber through a partition plate, the partition plate extends from the lower bin to the upper bin, a first turning plate, a second turning plate, a first cylinder device and a second cylinder device are arranged in the upper bin, and the first cylinder device and the second cylinder device are both installed on the outer wall of the distributing bin and extend into the upper bin. One ends of the first turning plate and the second turning plate are respectively fixedly arranged on the partition plate and are in butt joint, the other ends of the first turning plate and the second turning plate are respectively rotatably butt-jointed to the inner walls of two sides of the upper bin so as to divide the upper bin into a first chamber, a second chamber and a third chamber, the first chamber and the third chamber are communicated with the lower bin, and the second chamber is communicated with the conveying belt; the first air cylinder device is connected with the first turning plate, the second air cylinder device is connected with the second turning plate, and the controller respectively controls the first air cylinder device and the second air cylinder device to drive the first turning plate to rotate relative to the horizontal plane through the first air cylinder device or drive the second turning plate to rotate relative to the horizontal plane through the second air cylinder device;
The left cavity is communicated with the first cavity, the right cavity is communicated with the third cavity, three blanking openings are respectively formed in the bottom ends of the left cavity and the right cavity, and a turning plate is arranged between every two blanking openings in the left cavity and the right cavity, and the turning plate is a third turning plate and a fourth turning plate respectively; and a third air cylinder device and a fourth air cylinder device are respectively arranged in the left cavity and the right cavity, the third air cylinder device is connected with the third turning plate, the fourth air cylinder device is connected with the fourth turning plate, and the controller respectively controls the third air cylinder device and the fourth air cylinder device so as to drive the third turning plate to rotate relative to the horizontal plane through the third air cylinder device or drive the fourth turning plate to rotate relative to the horizontal plane through the fourth air cylinder device.
Preferably, part of the vibrating screen is provided with a single-layer screen, and part of the vibrating screen is provided with a double-layer screen; when the vibrating screen is the single-layer screen, the discharge port is formed in the bottom surface of the low end of the single-layer screen, and the waste port is formed in the top surface of the low end of the single-layer screen; when the vibrating screen is a double-layer screen, the discharge port is arranged at an outlet between two screens in the double-layer screen, and the waste port is respectively arranged at the top surface of the lower end of the upper-layer screen and the bottom surface of the lower-layer screen in the double-layer screen.
Preferably, adsorption vibrators are arranged on two opposite sides of the vibrating screen, and are connected with the controller.
Preferably, the automatic feeding device further comprises a waste belt conveyor, the waste belt conveyor is arranged on the sides of the plurality of collecting hoppers, one end, away from the vibrating screen, of the chute is connected with the waste belt conveyor, a waste belt is movably sleeved on the waste belt conveyor, and the waste belt conveyor is connected with the controller.
Preferably, the chute is inclined to the horizontal plane by an angle of 10-30 degrees, one end of the chute, which is high, is connected with the vibrating screen, and one end of the chute, which is low, is connected with the waste belt conveyor.
Preferably, a plurality of vibrating screens are respectively provided with a dust remover and a silencer, and the dust remover and the silencer are respectively connected with the controller.
Preferably, each vibrating screen has a length of 1.3-1.7 m and a width of 0.9-1.1 m.
Preferably, a plurality of quantitative conveying belt conveyors are arranged below each material conveying opening, quantitative conveying belts are movably sleeved on each quantitative conveying belt conveyor, and each material conveying opening is communicated with the output belt through a plurality of quantitative conveying belts.
Preferably, the conveyor belt forms an included angle of 10-20 degrees relative to the horizontal plane, one end of the conveyor belt, which is low, is connected with the output conveyor belt, and one end of the conveyor belt, which is high, is connected with the six-way distributor.
By adopting the technical scheme, the invention has the following beneficial effects:
according to the on-line screening device for the cold aggregates of the asphalt mixing plant, aggregates are sequentially conveyed into the collecting hopper from the storage bin through the output belt conveyor, the conveying belt conveyor and the six-way distributor, the aggregates are screened cleanly according to grading before entering the collecting hopper after entering the six-way distributor, finally qualified aggregates enter the collecting hopper, unqualified aggregates are conveyed away through the chute for reuse, energy conservation and environmental protection are achieved, and productivity output of a production line of the asphalt mixing plant is effectively guaranteed.
According to the online cold aggregate screening device for the asphalt mixing plant, provided by the invention, the plurality of cylinder devices are respectively controlled by the controller to be used in combination, so that the plurality of turning plates are controlled to be used in combination, so that the materials of a plurality of storage bins are automatically conveyed into corresponding collecting hoppers, the alternate conveying of a plurality of materials is further realized, the phenomena of mixing and clamping are effectively avoided, and the online cold aggregate screening device for the asphalt mixing plant is practical, convenient to use, simple to operate and low in production cost. The controller controls the control requirements of a plurality of cylinder devices to be accurate in place, the action time of each turning plate is 1.0 second, the turning plates of the upper bin and the lower bin act cooperatively, and meanwhile, the action time of the material cleaning process is 2.0 seconds, so that the material distribution bin is rapidly switched to a corresponding material conveying pipe, and the material conveying work is accurately completed. In addition, the dust remover and the silencer are arranged on the vibrating screen, the dust remover is used for removing dust, the phenomenon that dust flies on a construction site is avoided, and the silencer is used for reducing the noise of equipment so as to ensure that a stirring station has a good construction environment.
Drawings
FIG. 1 is a schematic structural view of an on-line screening device for cold aggregate in an asphalt mixing plant according to an embodiment of the invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a top view of a single storage bin in an on-line asphalt plant cold aggregate screening apparatus provided by an embodiment of the invention;
FIG. 4 is a schematic structural view of a six-way distributor in an on-line screening device for cold aggregate in an asphalt mixing plant according to an embodiment of the invention;
fig. 5 is a schematic structural diagram of a distributing bin in a six-way distributor in an on-line screening device for cold aggregate of an asphalt mixing plant according to an embodiment of the present invention;
fig. 6 is a schematic connection diagram of a controller in an on-line screening device for cold aggregate in an asphalt mixing plant according to an embodiment of the invention.
In the drawings, a 1-controller, a 2-storage bin, a 21-feed inlet, a 22-quantitative conveyor belt, a 23-quantitative conveyor belt, a 24-first weight sensor, a 3-output conveyor belt, a 31-output conveyor belt, a 4-conveyor belt, a 41-conveyor belt, a 42-second weight sensor, a 5-hexa-pass distributor, a 6-sieving device, a 61-vibrating screen, a 62-collecting pipe, a 63-chute, a 66-adsorption vibrator, a 67-dust remover, a 68-muffler, a 7-collecting hopper, a 71-first collecting hopper, a 72-second collecting hopper, a 73-third collecting hopper, a 74-fourth collecting hopper, a 75-fifth collecting hopper, a 76-sixth collecting hopper, 77-radar level gauge, 8-feed bin, 9-feed pipe, 91-first feed pipe, 92-second feed pipe, 93-third feed pipe, 94-fourth feed pipe, 95-fifth feed pipe, 96-sixth feed pipe, 10-inner chamber, 101-upper bin, 1011-first chamber, 1012-second chamber, 1013-third chamber, 102-lower bin, 1021-left chamber, 1022-right chamber, 11-feed opening, 12-first flap, 13-second flap, 14-first cylinder device, 15-second cylinder device, 16-baffle, 17-third flap, 18-fourth flap, 19-first valve, 20-second valve, 25-position sensor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, an embodiment of the present invention provides an online cold aggregate screening device for an asphalt mixing plant, which includes a controller 1, eight storage bins 2 arranged in parallel, an output belt conveyor 3, a conveyor belt conveyor 4, a six-way distributor 5, a screening device 6 and six collection hoppers 7 arranged in parallel. The controller 1 is arranged outside the storage bin 2. Two material conveying openings 21 are formed in the bottom of each storage bin 2, a quantitative conveying belt conveyor 22 is respectively arranged on two opposite sides of the lower portion of each material conveying opening 21, and a quantitative conveying belt 23 is movably sleeved on each quantitative conveying belt conveyor 22. The length of each of the quantitative conveyor belts 23 may be set to 2 to 3m and the width may be set to 0.5 to 0.7m. The conveying yield per a certain amount of the conveying belt 23 is not lower than 100t/h. In the present embodiment, the length of each of the quantitative conveyor belts 23 is preferably 2.5m, and the width is preferably 0.6m. The conveying amount of each of the quantitative conveying belts 23 is controlled to be 100-150t/h. A first weight sensor 24 is arranged on each quantitative conveying belt 23 and is used for monitoring whether the corresponding storage bin 2 is empty. The first weight sensors 24 are all connected with the controller 1. If a certain first weight sensor 24 monitors that the corresponding storage bin 2 is empty, the controller 1 controls the rest 3 quantitative conveying belts 23 of the storage bin 2 to accelerate conveying materials until the last quantitative conveying belt 23 of the storage bin 2 is also monitored to be empty, and then the controller 1 controls the whole system to stop waiting materials. The output belt conveyor 3 is arranged below all the material conveying openings 21 and below the quantitative conveying belt conveyor 22, and an output belt 31 is movably sleeved on the output belt conveyor 3. Each of the feed inlets 21 is connected to an output belt 31 by two quantitative conveyor belts 23. The length of the output belt 31 may be set to 180 to 200m, and the width of the output belt 31 may be set to 0.8 to 1.2m. In the present embodiment, the length of the output belt 31 is preferably 190m, and the width of the output belt 31 is preferably 1m. The conveying yield of the output belt 31 is up to 400t/h.
Six collection hoppers 7 are all installed in the one end of eight storage bins 2, six-way distributor 5 is installed in the top of six collection hoppers 7 and connects six collection hoppers 7. One end of the conveyor belt 4 is connected with the output belt 3, and the other end of the conveyor belt 4 is connected with the six-way distributor 5. The conveyor belt 41 is movably sleeved on the conveyor belt 4. The conveyor belt 4 forms an included angle of 10-20 degrees relative to the horizontal plane, one end of the conveyor belt 4, which is low, is connected with the output conveyor belt 3, and one end of the conveyor belt 4, which is high, is connected with the six-way distributor 5. The length of the conveyor belt 41 may be set to 45 to 55m, and the width of the conveyor belt 41 may be set to 0.8 to 1.2m. In this embodiment, the conveyor belt 4 forms an angle of 15 ° with respect to the horizontal. The design of the angle can reduce energy consumption and optimize material conveying. The length of the conveyor belt 41 is preferably 46m, and the width of the conveyor belt 41 is preferably 1m. The conveying yield of the conveyor belt 41 is up to 400t/h. The conveyor belt 41 is provided with a plurality of second weight sensors 42 connected to the controller 1 for monitoring whether the conveyor belt 41 is empty. When the second weight sensor 42 detects the empty section of the conveyor belt 41, a signal is sent to the controller 1, and the controller 1 receives the signal to control the six-way distributor 5 to move so as to be connected with the corresponding collecting hopper 7. The width of the output belt 31 and the conveyor belt 41 are designed to be similar so that the material is more naturally transferred during transfer from the output belt 31 to the conveyor belt 41. The controller 1 controls the movement of the output belt conveyor 3, the transfer belt conveyor 4 and the six-way distributor 5, respectively.
In the present embodiment, the six-way distributor 5 includes a distributing bin 8 and six feeding pipes 9 provided below the distributing bin 8 and connected to the bottom of the distributing bin 8. The distributing bin 8 is of a square structure. The outer wall of the material distributing bin 8 is provided with a vibrating device (not shown) for vibrating the material distributing bin 8 to clean the bin before switching materials. The vibration device is connected with the controller 1. The distributing bin 8 is provided with an inner cavity 10 connected with a conveying belt 41, six discharging openings 11 respectively communicated with the inner cavity 10 are formed in the bottom end of the distributing bin 8, and each discharging opening 11 is connected with a feeding pipe 9. One end of each feeding pipe 9 far away from the feed opening 11 is respectively communicated with a collecting hopper 7 for receiving materials. A radar level gauge 77 is mounted on each hopper 7 for monitoring the actual level value of the material in each hopper 7 and comparing it with the level value set by the radar level gauge 77. The six radar level gauges 77 are all connected to the controller 1. Each hopper 7 receives a respective material. In the present embodiment, the hoppers 7 are a first hopper 71, a second hopper 72, a third hopper 73, a fourth hopper 74, a fifth hopper 75, and a sixth hopper 76 in this order from left to right.
In this embodiment, the six feeding pipes 9 are all polyurethane feeding pipes, so that the wear resistance of the six feeding pipes 9 is effectively improved. The outer surfaces of the six feeding pipes 9 are wrapped with soundproof cotton, so that noise is effectively reduced. The six feeding pipes 9 are a first feeding pipe 91, a second feeding pipe 92, a third feeding pipe 93, a fourth feeding pipe 94, a fifth feeding pipe 95 and a sixth feeding pipe 96 in order from left to right. The first feeding pipe 91 and the sixth feeding pipe 96 are symmetrically arranged, and the first feeding pipe 91 and the sixth feeding pipe 96 form an angle of 30-55 DEG with the horizontal plane respectively; the second feeding pipe 92 and the fifth feeding pipe 95 are symmetrically arranged, and the second feeding pipe 92 and the fifth feeding pipe 95 form an angle of 55-65 degrees with the horizontal plane; the third feeding pipe 93 and the fourth feeding pipe 94 are symmetrically arranged, and the third feeding pipe 93 and the fourth feeding pipe 94 each form an angle of 65-80 ° with respect to the horizontal plane. In the present embodiment, the first feed pipe 91 and the sixth feed pipe 96 each form an angle of 50 ° with respect to the horizontal plane, the second feed pipe 92 and the fifth feed pipe 95 each form an angle of 63 ° with respect to the horizontal plane, and the third feed pipe 93 and the fourth feed pipe 94 each form an angle of 80 ° with respect to the horizontal plane.
The inner chamber 10 is divided into an upper chamber 101 and a lower chamber 102 which are communicated. The lower plenum 102 is partitioned by a partition 16 into left and right chambers 1021 and 1022 that are not in communication with each other. Partition 16 extends from lower plenum 102 into upper plenum 101. A first turning plate 12, a second turning plate 13, a first cylinder device 14 and a second cylinder device 15 are arranged in the upper bin 101. The first cylinder device 14 and the second cylinder device 15 are both installed on the outer wall of the distribution bin 8 and extend into the upper chamber 101, the lower ends of the first turning plate 12 and the second turning plate 13 are respectively fixedly arranged on the partition plate 16 and are abutted, and the upper ends of the first turning plate 12 and the second turning plate 13 are respectively rotatably abutted to the inner walls on two sides of the upper chamber 101 so as to divide the upper chamber 101 into a first chamber 1011, a second chamber 1012 and a third chamber 1013. The first flap 12, the left side wall of the upper chamber 101, the bottom wall of the upper chamber 101 and the partition 16 together enclose a first chamber 1011, the first flap 12, the second flap 13 and the top wall of the upper chamber 101 together enclose a second chamber 1012, and the second flap 13, the right side wall of the upper chamber 101, the bottom wall of the upper chamber 101 and the partition 16 together enclose a third chamber 1013. The first chamber 1011 and the third chamber 1013 are both in communication with the lower plenum 102, and the second chamber 1012 is in communication with the conveyor belt 41. The first cylinder device 14 is connected with the first turning plate 12, and the second cylinder device 15 is connected with the second turning plate 13. The controller 1 controls the first cylinder device 14 and the second cylinder device 15 respectively to drive the first turning plate 12 to rotate relative to the horizontal plane through the first cylinder device 14 or drive the second turning plate 13 to rotate relative to the horizontal plane through the second cylinder device 15.
The left chamber 1021 communicates with the first chamber 1011 and the right chamber 1022 communicates with the third chamber 1013. Three feed openings 11 are respectively formed in the bottom ends of the left chamber 1021 and the right chamber 1022, and a turning plate is arranged between every two feed openings 11 in the left chamber 1021 and the right chamber 1022, namely a third turning plate 17 and a fourth turning plate 18. A third cylinder device (not shown) and a fourth cylinder device (not shown) are also mounted to the bottoms of the left chamber 1021 and the right chamber 1022, respectively. The third cylinder device is connected with a third turning plate 17, and the fourth cylinder device is connected with a fourth turning plate 18. The third cylinder device is provided with a first valve 19, and the controller 3 controls the third cylinder device through the first valve 19 so as to drive the third turning plate 17 to rotate relative to the horizontal plane through the third cylinder device. The fourth cylinder device is provided with a second valve 20, and the controller 3 controls the fourth cylinder device through the second valve 20 so as to drive the fourth turning plate 20 to rotate relative to the horizontal plane through the fourth cylinder device.
In this embodiment, each of the first flap 12, the second flap 13, the third flap 17 and the fourth flap 18 is provided with a position sensor 25 for detecting the positions of the first flap 12, the second flap 13, the third flap 17 and the fourth flap 18. The four position sensors 25 are all connected to the controller 1. The lengths of the first turning plate 12 and the second turning plate 13 are larger than half of the length of the upper bin 101, so that the first turning plate 12 and the second turning plate 13 abut against the inner side wall of the upper bin 101 when rotating towards two sides respectively, and leakage is prevented. The width of the first turning plate 12 and the second turning plate 13 is equal to the width of the upper bin 101, so that material leakage is prevented. In this embodiment, the left chamber 1021 is the same size as the right chamber 1022. The lengths of the third turning plate 17 and the fourth turning plate 18 are larger than one third of the lengths of the left chamber 1021 or the right chamber 1022, so that the third turning plate 17 and the fourth turning plate 18 abut against the inner side wall of the left chamber 1021 or the right chamber 1022 when rotating towards two sides respectively, and leakage is prevented. The width of the third turning plate 17 and the fourth turning plate 18 is equal to the width of the lower bin 102, so that material leakage is prevented.
The six-way distributor 5 is used for conveying six different materials, the six materials are correspondingly conveyed from eight storage bins 2 to six collecting hoppers 7, the first material is conveyed to the first collecting hopper 71 through a first conveying pipe 91, the second material is conveyed to the second collecting hopper 72 through a second conveying pipe 92, the third material is conveyed to the third collecting hopper 73 through a third conveying pipe 93, the fourth material is conveyed to the fourth collecting hopper 74 through a fourth conveying pipe 94, the fifth material is conveyed to the fifth collecting hopper 75 through a fifth conveying pipe 95, and the sixth material is conveyed to the sixth collecting hopper 76 through a sixth conveying pipe 96. In which two or three storage bins 2 can be arranged in parallel, i.e. two or three storage bins 2 convey the same material.
When the conveyor belt 41 is fed with the replacement material, the controller 1 controls the quantitative conveyor belt 23, the output belt 31 and the conveyor belt 41 to perform empty conveying, i.e., not convey any material, to give the six-way dispenser 5 time to switch to the corresponding feed pipe 9, and requires extremely precise control to strictly prevent the material from being mixed. In the present embodiment, the quantitative conveyor belt 22, the output conveyor belt 3, and the conveyor belt 4 each have the capacity of on-load start, capacity of operation adjustment, and capacity of automatic correction, and have high reliability.
The screening device 6 comprises six vibrating screens 61, six collecting pipes 62, a chute 63 and a waste belt conveyor (not shown). Six collecting pipes 62 and a chute 63 are arranged below the six vibrating screens 61. The six vibrating screens 61 and the chute 63 are disposed obliquely with respect to the horizontal plane, respectively. Each of the vibration sieves 61 may be set to 1.3 to 1.7m in length and 0.9 to 1.1m in width. In the present embodiment, the length of each vibrating screen 61 is preferably 1.5m, and the width is preferably 1m. The high end of each vibrating screen 61 is connected with a six-way distributor 5, the low end of each vibrating screen 61 is respectively provided with a discharge hole (not marked) and a waste material hole (not marked), each discharge hole is respectively connected with a material collecting pipe 62, each waste material hole is connected with a chute 63, and one end of each material collecting pipe 62 far away from the vibrating screen 61 is respectively connected with a material collecting hopper 7. The chute 63 is obliquely arranged at an angle of 10-30 degrees relative to the horizontal plane, one high end of the chute 63 is connected with the vibrating screen 61, and the low end of the chute 63 is connected with the waste belt conveyor. In this embodiment, the chute 63 is inclined at an angle of 15 ° to the horizontal so that the waste material on the chute 63 slides freely downward under the force of gravity. Six vibrating screens 61 are all connected with the controller 1. The six vibrating screens 61 are provided with adsorption vibrators 66 on opposite sides thereof, and play a vibrating role. The adsorption vibrator 66 is connected to the controller 1. The six vibrating screens 61 are respectively provided with a dust remover 67 and a muffler 68, and the dust remover 67 and the muffler 68 are respectively connected with the controller 1. The waste material belt feeder is installed in the side of six collection hoppers 7, and the one end that shale shaker 61 was kept away from to chute 63 is connected the waste material belt feeder, the last movable sleeve of waste material belt feeder is equipped with the waste material belt. The waste belt conveyor is connected with the controller 1. The controller 1 controls the six vibrating screens 61, the dust collectors 67, the muffler 68 and the scrap conveyor movement, respectively.
Part of the vibrating screen 61 is provided with a single-layer screen, and part of the vibrating screen 61 is provided with a double-layer screen. The double-layer screen comprises an upper-layer screen and a lower-layer screen, wherein the pore diameter of the upper-layer screen is larger than that of the lower-layer screen, and the aggregate between the two-layer screen is qualified aggregate. When the vibrating screen 61 is a single-layer screen, the discharge port is formed in the bottom surface of the low end of the single-layer screen, and the waste port is formed in the top surface of the low end of the single-layer screen; when the vibrating screen 61 is a double-layer screen, the discharge port is provided with an outlet between two screens in the double-layer screen, and the waste port is provided with a top surface of the lower end of the upper-layer screen and a bottom surface of the lower end of the lower-layer screen in the double-layer screen, respectively. In the present embodiment, the vibrating screen 61 corresponding to the first hopper 71 is a single-layer screen, and the vibrating screen 61 corresponding to the other hoppers 7 is a double-layer screen. The first hopper 71 was used for collecting stone dust, and the aperture of the single-layer screen of the first hopper 71 was set to 4mm. When the six-way distributor 5 conveys stone powder to the first collecting hopper 71, the stone powder with the particle size smaller than 4mm screened by the single-layer screen mesh flows to the collecting pipe 62 through the discharge hole and then flows into the collecting hopper 71; the stone dust with the grain size of more than 4mm is blocked by the single-layer screen mesh and flows to the chute 63 through the waste port, and then flows to the waste belt conveyor and is conveyed away through the waste belt conveyor. When the six-way distributor 5 conveys other aggregates except stone powder into the other collecting hoppers 7, after the aggregates are screened by the double-layer screen, the aggregates between the upper-layer screen and the lower-layer screen flow to the collecting hoppers 7 through the discharge holes, and the aggregates with the particle sizes larger than the upper-layer screen and the aggregates with the particle sizes smaller than the lower-layer screen flow to the chute 63 through the waste holes respectively, flow to the waste belt conveyor and are conveyed away through the waste belt conveyor.
When the online cold aggregate screening device for the asphalt mixing plant is used, when the radar level gauge 77 in the first collecting hopper 71 monitors that the actual level value of the first collecting hopper 71 is lower than the set level value, the radar level gauge 77 sends a signal to the controller 1, the controller 1 firstly monitors the empty section of the conveying belt 41 through the second weight sensor 42 after receiving the signal, then monitors whether each turning plate is in place through the position sensor 25, and the turning plate in place does not act any more. If the turning plates are not in place, the first air cylinder device 14 and the second air cylinder device 15 are controlled to respectively drive the first turning plate 12 and the second turning plate 13 to rotate rightwards, at the moment, the upper end of the second turning plate 13 is abutted against the inner side wall of the upper chamber 101, the upper end of the first turning plate 12 is overlapped on the second turning plate 13, and the first chamber 1011 is communicated with the second chamber 1012; meanwhile, the controller 1 controls the third cylinder device and the fourth cylinder device to respectively drive the third turning plate 17 and the fourth turning plate 18 in the left chamber 1021 to rotate rightwards, at this time, the upper end of the fourth turning plate 18 is abutted against the inner side wall of the left chamber 1021, the upper end of the third turning plate 17 is abutted against the fourth turning plate 18, and only the first feeding pipe 91 is communicated with the first chamber 1011 through the left chamber 1021; next, the controller 1 controls the material storage bin 2 storing the first material to be discharged through the material feed port 21 and to be fed into the material distribution bin 8 sequentially through the quantitative conveyor belt 23, the output belt 31 and the conveyor belt 41, and then the first material sequentially passes through the second chamber 1012, the first chamber 1011 and the left chamber 1021 and then enters the first feeding pipe 91 from the material discharge port 11. When the first material is required to stop conveying, the controller 1 controls the storage bin 2 to stop feeding and controls the vibration device to start so as to vibrate all the first material in the distribution bin 8 down the first feeding pipe 91 and prevent material mixing and clamping; after the stone powder from the first feeding pipe 91 is screened by the vibrating screen 61, the stone powder with the particle size smaller than the pore diameter of the single-layer screen falls into the discharge port from the single-layer screen and flows to the first collecting hopper 71 through the collecting pipe 62, and the stone powder with the particle size larger than the pore diameter of the single-layer screen is blocked by the single-layer screen and flows to the chute 63 from the waste port, and then flows to the waste belt conveyor and is conveyed away by the waste belt conveyor.
When the radar level gauge 77 in the second aggregate bin 72 detects that the actual level value of the second aggregate bin 72 is lower than the set level value, the radar level gauge 77 sends a signal to the controller 1, the controller 1 firstly monitors the empty section of the conveyor belt 41 through the second weight sensor 42 after receiving the signal, then monitors whether each turning plate is in place through the position sensor 25, and the turning plate in place does not act any more. If the turning plates are not in place, the first air cylinder device 14 and the second air cylinder device 15 are controlled to drive the first turning plate 12 and the second turning plate 13 to move rightwards respectively, at the moment, the upper end of the second turning plate 13 is abutted against the inner side wall of the upper chamber 101, the upper end of the first turning plate 12 is overlapped on the second turning plate 13, and the first chamber 1011 is communicated with the second chamber 1012; meanwhile, the controller 1 controls the third cylinder device to drive the third turning plate 17 in the left chamber 1021 to move leftwards and controls the fourth cylinder device to drive the fourth turning plate 18 in the left chamber 1021 to move rightwards, at this time, the upper ends of the third turning plate 17 and the fourth turning plate 18 are respectively abutted against the inner walls of the two sides of the left chamber 1021, and only the second feeding pipe 92 is communicated with the first chamber 1011 through the left chamber 1021; next, the controller 1 controls the storage bin 2 storing the second material to be discharged through the feed port 21 and to be fed into the distribution bin 8 sequentially through the quantitative conveyor belt 23, the output belt 31 and the conveyor belt 41, and then the second material sequentially passes through the second chamber 1012, the first chamber 1011 and the left chamber 1021 and then enters the second feed pipe 92 from the discharge port 11. When the second materials need to be stopped in conveying, the controller 1 controls the storage bin 2 to stop feeding and controls the vibration device to start so as to vibrate all the second materials in the distribution bin 8 down the second feeding pipe 92, and mixing and clamping are prevented; after the aggregates from the second feeding pipe 92 are screened by the vibrating screen 61, the aggregates with the particle size smaller than that of the upper screen and larger than that of the lower screen flow to the discharge port and flow to the second collecting hopper 72 through the collecting pipe 62, and the aggregates with the particle size larger than that of the upper screen and the aggregates with the particle size smaller than that of the lower screen flow to the chute 63 from the waste port respectively, and then flow to the waste belt conveyor and are conveyed away by the waste belt conveyor.
When the radar level gauge 77 in the third aggregate bin 73 detects that the actual level value of the third aggregate bin 73 is lower than the set level value, the radar level gauge 77 sends a signal to the controller 1, the controller 1 firstly monitors the empty section of the conveyor belt 41 through the second weight sensor 42 after receiving the signal, then monitors whether each turning plate is in place through the position sensor 25, and the turning plate in place does not act any more. If the turning plates are not in place, the first air cylinder device 14 and the second air cylinder device 15 are controlled to drive the first turning plate 12 and the second turning plate 13 to move rightwards respectively, at the moment, the upper end of the second turning plate 13 is abutted against the inner side wall of the upper chamber 101, the upper end of the first turning plate 12 is overlapped on the second turning plate 13, and the first chamber 1011 is communicated with the second chamber 1012; meanwhile, the controller 1 controls the third cylinder device and the fourth cylinder device to respectively drive the third turning plate 17 and the fourth turning plate 18 in the left chamber 1021 to move leftwards, at this time, the upper end of the third turning plate 17 is abutted against the inner side wall of the left chamber 1021, the upper end of the fourth turning plate 18 is abutted against the third turning plate 17, and only the third feeding pipe 93 is communicated with the first chamber 1011 through the left chamber 1021; next, the controller 1 controls the storage bin 2 storing the third material to be discharged through the feed port 21 and to be fed into the distribution bin 8 sequentially through the quantitative conveyor belt 23, the output belt 31 and the conveyor belt 41, and then the third material sequentially passes through the second chamber 1012, the first chamber 1011 and the left chamber 1021 and then enters the third feed pipe 93 from the discharge port 11. When the third materials need to be stopped in conveying, the controller 1 controls the storage bin 2 to stop feeding and controls the vibration device to start so as to vibrate all the third materials in the distribution bin 8 down the third feeding pipe 93, and mixing and clamping are prevented; after the aggregates from the third feeding pipe 93 are screened by the vibrating screen 61, the aggregates with the particle size smaller than that of the upper screen and larger than that of the lower screen flow to the discharge port and flow to the third collecting hopper 73 by the collecting pipe 62, and the aggregates with the particle size larger than that of the upper screen and the aggregates with the particle size smaller than that of the lower screen flow to the chute 63 from the waste port respectively, and then flow to the waste belt conveyor and are conveyed away by the waste belt conveyor.
When the radar level gauge 77 in the fourth aggregate bin 74 detects that the actual level value of the fourth aggregate bin 74 is lower than the set level value, the radar level gauge 77 sends a signal to the controller 1, the controller 1 firstly monitors the empty section of the conveyor belt 41 through the second weight sensor 42 after receiving the signal, then monitors whether each turning plate is in place through the position sensor 25, and the turning plate in place does not act any more. If the turning plates are not in place, the first air cylinder device 14 and the second air cylinder device 15 are controlled to drive the first turning plate 12 and the second turning plate 13 to move leftwards respectively, at the moment, the upper end of the first turning plate 12 is abutted against the inner side wall of the upper chamber 101, the upper end of the second turning plate 13 is overlapped on the first turning plate 12, and the second chamber 1012 is communicated with the third chamber 1013; meanwhile, the controller 1 controls the third cylinder device and the fourth cylinder device to respectively drive the third turning plate 17 and the fourth turning plate 18 in the right chamber 1022 to move rightwards, at this time, the upper end of the fourth turning plate 18 is abutted against the inner side wall of the right chamber 1022, the upper end of the third turning plate 17 is abutted against the fourth turning plate 18, and only the fourth feeding pipe 94 is communicated with the third chamber 1013 through the right chamber 1022; next, the controller 1 controls the storage bin 2 storing the fourth material to be discharged through the feed port 21 and to be fed into the distribution bin 8 sequentially through the quantitative conveyor belt 23, the output belt 31 and the conveyor belt 41, and then the fourth material sequentially passes through the second chamber 1012, the third chamber 1013 and the right chamber 1022 and then enters the fourth feed pipe 94 from the discharge port 11. When the fourth materials need to be stopped in conveying, the controller 1 controls the storage bin 2 to stop feeding and controls the vibration device to start so as to vibrate all the fourth materials in the distribution bin 8 down the fourth feeding pipe 94, and mixing and clamping are prevented; after the aggregates from the fourth feeding pipe 94 are screened by the vibrating screen 61, the aggregates with the particle size smaller than that of the upper screen and larger than that of the lower screen flow to the discharge port and flow to the fourth collecting hopper 74 through the collecting pipe 62, and the aggregates with the particle size larger than that of the upper screen and the aggregates with the particle size smaller than that of the lower screen flow to the chute 63 from the waste port respectively, and further flow to the waste belt conveyor and are conveyed away by the waste belt conveyor.
When the radar level gauge 77 in the fifth aggregate bin 75 detects that the actual level value of the fifth aggregate bin 75 is lower than the set level value, the radar level gauge 77 sends a signal to the controller 1, the controller 1 firstly monitors the empty section of the conveyor belt 41 through the second weight sensor 42 after receiving the signal, then monitors whether each turning plate is in place through the position sensor 25, and the turning plate in place does not act any more. If the turning plates are not in place, the first air cylinder device 14 and the second air cylinder device 15 are controlled to drive the first turning plate 12 and the second turning plate 13 to move leftwards respectively, at the moment, the upper end of the first turning plate 12 is abutted against the inner side wall of the upper chamber 101, the upper end of the second turning plate 13 is overlapped on the first turning plate 12, and the second chamber 1012 is communicated with the third chamber 1013; meanwhile, the controller 1 controls the third cylinder device to drive the third turning plate 17 in the right chamber 1022 to move leftwards and controls the fourth cylinder device to drive the fourth turning plate 18 in the right chamber 1022 to move rightwards, at this time, the upper ends of the third turning plate 17 and the fourth turning plate 18 are respectively abutted against the inner walls of the two sides of the right chamber 1022, and only the fifth feeding pipe 95 is communicated with the third chamber 1013 through the right chamber 1022; next, the controller 1 controls the storage bin 2 storing the fifth material to be discharged through the feed port 21 and to be fed into the distribution bin 8 sequentially through the quantitative conveyor belt 23, the output belt 31 and the conveyor belt 41, and then the fifth material sequentially passes through the second chamber 1012, the third chamber 1013 and the right chamber 1022 and then enters the fifth feed pipe 95 from the discharge port 11. When the fifth material is required to stop conveying, the controller 1 controls the storage bin 2 to stop feeding and controls the vibration device to start so as to vibrate all the fifth material in the distribution bin 8 down the fifth feeding pipe 95, and prevent material mixing and clamping; after the aggregate from the fifth feeding pipe 95 passes through the vibrating screen 61 and is screened, the aggregate with the particle size smaller than that of the upper screen and larger than that of the lower screen flows to the discharge port and flows to the fifth collecting hopper 75 through the collecting pipe 62, and the aggregate with the particle size larger than that of the upper screen and the aggregate with the particle size smaller than that of the lower screen flow to the chute 63 from the waste port respectively, and then flow to the waste belt conveyor and are conveyed away through the waste belt conveyor.
When the radar level gauge 77 in the sixth aggregate bin 76 detects that the actual level value of the sixth aggregate bin 76 is lower than the set level value, the radar level gauge 77 sends a signal to the controller 1, the controller 1 firstly monitors the empty section of the conveyor belt 41 through the second weight sensor 42 after receiving the signal, then monitors whether each turning plate is in place through the position sensor 25, and the turning plate in place does not act any more. If the turning plates are not in place, the first air cylinder device 14 and the second air cylinder device 15 are controlled to drive the first turning plate 12 and the second turning plate 13 to move leftwards respectively, at the moment, the upper end of the first turning plate 12 is abutted against the inner side wall of the upper chamber 101, the upper end of the second turning plate 13 is overlapped on the first turning plate 12, and the second chamber 1012 is communicated with the third chamber 1013; meanwhile, the controller 1 controls the third cylinder device and the fourth cylinder device to drive the third turning plate 17 and the fourth turning plate 18 in the right chamber 1022 to move leftwards, at this time, the upper end of the third turning plate 17 abuts against the inner side wall of the right chamber 1022, the upper end of the fourth turning plate 18 abuts against the third turning plate 17, and only the sixth feeding pipe 96 is communicated with the third chamber 1013 through the right chamber 1022; meanwhile, the controller 1 controls the storage bin 2 storing the sixth material to be discharged through the feed port 21 and to be fed into the distribution bin 8 sequentially through the quantitative conveyor belt 23, the output belt 31 and the conveyor belt 41, and then the sixth material sequentially passes through the second chamber 1012, the third chamber 1013 and the right chamber 1022 and then enters the sixth feed pipe 96 from the discharge port 11. When the conveying of the sixth material is required to be stopped, the controller 1 controls the storage bin 2 to stop feeding and controls the vibration device to start so as to vibrate all the sixth material in the distribution bin 8 down the sixth feeding pipe 96, and prevent material mixing and clamping; after the aggregate from the sixth feeding pipe 96 passes through the vibrating screen 61, the aggregate with the particle size smaller than the upper screen and larger than the lower screen flows to the discharge port and flows to the sixth collecting hopper 76 through the collecting pipe 62, and the aggregate with the particle size larger than the aperture of the upper screen and the aggregate with the particle size smaller than the aperture of the lower screen flow to the chute 63 from the waste port respectively, and then flow to the waste belt conveyor and are conveyed away by the waste belt conveyor.
The foregoing description is directed to the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the invention, and all equivalent changes or modifications made under the technical spirit of the present invention should be construed to fall within the scope of the present invention.
Claims (8)
1. An on-line screening device for cold aggregate of an asphalt mixing plant is characterized in that: the automatic feeding device comprises a controller, a plurality of storage bins which are arranged in parallel, an output belt conveyor, a conveying belt conveyor, a six-way distributor, a screening device and a plurality of collecting hoppers which are arranged in parallel, wherein the controller is arranged outside the storage bins, the bottom of each storage bin is provided with a material conveying opening, the output belt conveyor is arranged below all the material conveying openings, and an output belt is movably sleeved on the output belt conveyor; the six-way distributor is arranged above the plurality of collecting hoppers and connected with the plurality of collecting hoppers, one end of the conveyor belt is connected with the output belt conveyor, the other end of the conveyor belt is connected with the six-way distributor, and the conveyor belt is movably sleeved with a conveyor belt; the screening device comprises a plurality of vibrating screens, a plurality of collecting pipes and a chute, wherein the collecting pipes and the chute are arranged below the vibrating screens, the vibrating screens and the chute are respectively arranged obliquely relative to a horizontal plane, the high end of each vibrating screen is connected with the six-way distributor, the low end of each vibrating screen is respectively provided with a discharge hole and a waste hole, part of the vibrating screens are provided with single-layer screens, and the other vibrating screens are provided with double-layer screens; when the vibrating screen is the single-layer screen, the discharge port is formed in the bottom surface of the low end of the single-layer screen, and the waste port is formed in the top surface of the low end of the single-layer screen; when the vibrating screen is a double-layer screen, the discharge port is arranged at an outlet between two screens in the double-layer screen, and the waste port is respectively arranged at the top surface of the lower end of the upper-layer screen and the bottom surface of the lower-layer screen in the double-layer screen; each discharge hole is respectively connected with one collecting pipe, each waste hole is connected with the chute, one end of each collecting pipe, which is far away from the vibrating screen, is respectively connected with one collecting hopper, and a plurality of vibrating screens are connected with the controller; the controller respectively controls the output belt conveyor, the conveying belt conveyor, the six-way distributor and the vibrating screens to move;
The six-way distributor comprises a distribution bin and six feeding pipes which are arranged below the distribution bin and connected with the bottom of the distribution bin, the distribution bin is provided with an inner cavity which is communicated with the conveying belt, the bottom end of the distribution bin is provided with six discharging openings which are respectively communicated with the inner cavity, and each discharging opening is connected with one feeding pipe;
the inner cavity is divided into an upper bin and a lower bin which are communicated, the lower bin is divided into a left chamber and a right chamber by a partition plate, the partition plate extends from the lower bin to the upper bin, a first turning plate, a second turning plate, a first cylinder device and a second cylinder device are arranged in the upper bin, and the first cylinder device and the second cylinder device are both arranged on the outer wall of the material distribution bin and extend into the upper bin; one ends of the first turning plate and the second turning plate are respectively fixedly arranged on the partition plate and are in butt joint, the other ends of the first turning plate and the second turning plate are respectively rotatably butt-jointed to the inner walls of two sides of the upper bin so as to divide the upper bin into a first chamber, a second chamber and a third chamber, the first chamber and the third chamber are communicated with the lower bin, and the second chamber is communicated with the conveying belt; the first air cylinder device is connected with the first turning plate, the second air cylinder device is connected with the second turning plate, and the controller respectively controls the first air cylinder device and the second air cylinder device to drive the first turning plate to rotate relative to the horizontal plane through the first air cylinder device or drive the second turning plate to rotate relative to the horizontal plane through the second air cylinder device;
The left cavity is communicated with the first cavity, the right cavity is communicated with the third cavity, three blanking openings are respectively formed in the bottom ends of the left cavity and the right cavity, and a turning plate is arranged between every two blanking openings in the left cavity and the right cavity, and the turning plate is a third turning plate and a fourth turning plate respectively; and a third air cylinder device and a fourth air cylinder device are respectively arranged in the left cavity and the right cavity, the third air cylinder device is connected with the third turning plate, the fourth air cylinder device is connected with the fourth turning plate, and the controller respectively controls the third air cylinder device and the fourth air cylinder device so as to drive the third turning plate to rotate relative to the horizontal plane through the third air cylinder device or drive the fourth turning plate to rotate relative to the horizontal plane through the fourth air cylinder device.
2. An on-line cold aggregate screening device for an asphalt mixing plant as defined in claim 1, wherein: and the two opposite sides of the vibrating screens are respectively provided with an adsorption vibrator, and the adsorption vibrators are connected with the controller.
3. An on-line cold aggregate screening device for an asphalt mixing plant as defined in claim 1, wherein: still include the waste material belt feeder, the waste material belt feeder is installed a plurality of the side of collecting hopper, the chute is kept away from the one end of shale shaker is connected the waste material belt feeder, the last movable sleeve of waste material belt feeder is equipped with the waste material belt, the waste material belt feeder is connected the controller.
4. An on-line cold aggregate screening device for an asphalt mixing plant as defined in claim 3, wherein: the chute is inclined relative to the horizontal plane and is arranged at an angle of 10-30 degrees, one end of the chute, which is high, is connected with the vibrating screen, and one end of the chute, which is low, is connected with the waste belt conveyor.
5. An on-line cold aggregate screening device for an asphalt mixing plant as defined in claim 1, wherein: and the plurality of vibrating screens are respectively provided with a dust remover and a silencer, and the dust remover and the silencer are respectively connected with the controller.
6. An on-line cold aggregate screening device for an asphalt mixing plant as defined in claim 1, wherein: each vibrating screen is 1.3-1.7 m long and 0.9-1.1 m wide.
7. An on-line cold aggregate screening device for an asphalt mixing plant as defined in claim 1, wherein: each the below of defeated material mouth all installs a plurality of ration conveyer belt machines, each the equal movable sleeve of ration conveyer belt machine is equipped with the ration conveyer belt, each the defeated material mouth all passes through a plurality of ration conveyer belt intercommunication output belt.
8. An on-line cold aggregate screening device for an asphalt mixing plant as defined in claim 1, wherein: the conveyor belt forms an included angle of 10-20 degrees relative to the horizontal plane, one end of the conveyor belt, which is low, is connected with the output conveyor belt, and one end of the conveyor belt, which is high, is connected with the six-way distributor.
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| CN201810337895.6A CN108483055B (en) | 2018-04-16 | 2018-04-16 | Cold aggregate on-line screening device of asphalt mixing plant |
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| CN201810337895.6A CN108483055B (en) | 2018-04-16 | 2018-04-16 | Cold aggregate on-line screening device of asphalt mixing plant |
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| CN208377932U (en) * | 2018-04-16 | 2019-01-15 | 广西路桥工程集团有限公司 | A kind of online screening plant of cold aggregate of bituminous mixing plant |
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| JP2003083797A (en) * | 2001-09-10 | 2003-03-19 | Kawasaki Steel Corp | Management method for amount of transport by belt conveyor |
| CN102300669A (en) * | 2009-01-31 | 2011-12-28 | 海蒂诗控股有限公司及两合公司 | Pneumatic compressed-air tube transport system |
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| CN104726799A (en) * | 2015-04-10 | 2015-06-24 | 唐山曹妃甸区通鑫再生资源回收利用有限公司 | Hot-pressing molding production line for hot-pressed iron blocks |
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Also Published As
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|---|---|
| CN108483055A (en) | 2018-09-04 |
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