CN116588695A - Circulating fluidization negative pressure dilute phase dust pneumatic ash conveying and discharging system - Google Patents
Circulating fluidization negative pressure dilute phase dust pneumatic ash conveying and discharging system Download PDFInfo
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- CN116588695A CN116588695A CN202310352513.8A CN202310352513A CN116588695A CN 116588695 A CN116588695 A CN 116588695A CN 202310352513 A CN202310352513 A CN 202310352513A CN 116588695 A CN116588695 A CN 116588695A
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- box body
- air
- negative pressure
- air outlet
- cyclone separator
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- 239000000428 dust Substances 0.000 title claims abstract description 107
- 238000007599 discharging Methods 0.000 title claims abstract description 17
- 238000005243 fluidization Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims description 51
- 238000005192 partition Methods 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 15
- 230000001502 supplementing effect Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 27
- 239000000843 powder Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/50—Pneumatic devices
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/36—Arrangements of containers
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/46—Gates or sluices, e.g. rotary wheels
-
- 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
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
-
- 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
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/042—Granular material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cyclones (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a circulating fluidization negative pressure dilute phase dust pneumatic ash conveying and discharging system, wherein after materials enter a conveying pipe through a rotary feeder, the materials are conveyed to a cyclone separator by air flow pressure, most of the materials are discharged through a discharger at the bottom of the cyclone separator, and a small part of the powder which is not separated completely enters a bag-type dust remover along with the air flow to be filtered, and air output from the bag-type dust remover is conveyed into a rotor type rotary blower through a return air pipe to be circulated, so that the aim of circulating fluidization negative pressure dilute phase dust pneumatic ash conveying and discharging is fulfilled; in the process, the rotor type rotary blower with larger inlet and outlet pressure difference is adopted as an air source device, but because the blower requires that a tiny gap is kept between a rotor of the blower and a shell and an end cover, dust is not allowed to pass through by airflow, a bag-type dust remover is added between the cyclone separator and the air inlet end of the rotor type rotary blower, so that the normal use of the rotor type rotary blower is ensured.
Description
Technical Field
The invention relates to the technical field of material conveying, in particular to a circulating fluidized negative pressure dilute phase dust pneumatic ash conveying and discharging system.
Background
The circulating fluidized negative pressure dilute phase dust pneumatic conveying system adopts a completely closed conveying loop, and is suitable for conveying light and dry materials and materials with dust harmful to the light and dry materials, hygroscopic materials which must remain dry, explosive materials which need to be conveyed by inert gas, toxic materials and valuable materials which must minimize loss. The working principle is as follows: after the material enters the material conveying pipe through the rotary feeder, the material is conveyed to the cyclone separator by air flow in a pressing way, most of the material is discharged through the discharger at the bottom of the cyclone separator, and a small part of the powder which is not separated completely is conveyed back to the material feeding point along with the air flow through the fan and the return air pipe, so that the purpose of circulating fluidization negative pressure dilute phase dust pneumatic ash conveying and discharging is realized.
However, for the transportation with small transportation quantity and short distance, a centrifugal fan or a turbine fan can be used as an air source device, and the centrifugal fan and the vortex soft fan allow dust to pass through without damaging blades and shells of the dust, but the disadvantage is that the air quantity of the fans is not stable enough and the inlet and outlet pressure difference is small (usually about 21 Kpa), so that the requirements of large transportation quantity and long-distance pneumatic transportation cannot be met.
If a rotor type rotary blower (usually about 85 Kpa) with a large inlet and outlet pressure difference is adopted, however, the blower needs to keep a very small gap among a rotor, a shell and an end cover, and dust (materials) carried by air flow cannot pass through the rotor type rotary blower, so that the requirements of large conveying capacity and long-distance pneumatic conveying cannot be well met.
Disclosure of Invention
The invention aims to provide a circulating fluidization negative pressure dilute phase dust pneumatic ash conveying and discharging system, which adopts a rotor type rotary air blower with larger inlet and outlet pressure difference as an air source device, and a cloth bag dust remover is additionally arranged between a cyclone separator and an air inlet end of the rotor type rotary air blower so as to ensure the normal use of the rotor type rotary air blower.
The technical aim of the invention is realized by the following technical scheme: the utility model provides a circulating fluidization negative pressure dilute phase dust strength ash conveying and discharging system, includes rotatory feeder, the rotor type gyration air-blower that air-out end and rotatory feeder are connected, cyclone, connect the conveying pipeline between rotatory feeder and cyclone, connect the return air pipe at the air inlet end of rotor type gyration air-blower, set up the sack cleaner between outlet duct and the return air pipe at cyclone top.
By adopting the technical scheme, after the materials enter the conveying pipe through the rotary feeder, the materials are conveyed to the cyclone separator under pressure by air flow, most of the materials are discharged through the discharger at the bottom of the cyclone separator, and a small part of the powder which is not separated completely enters the bag-type dust remover along with the air flow to be filtered, and the air output from the bag-type dust remover is circulated in the rotor-type rotary blower through the return air pipe, so that the aim of circulating fluidized negative-pressure dilute-phase dust pneumatic ash conveying and discharging is fulfilled; in the process, the rotor type rotary blower with larger inlet and outlet pressure difference is adopted as an air source device, but because the blower requires that a tiny gap is kept between a rotor of the blower and a shell and an end cover, dust is not allowed to pass through by airflow, a bag-type dust remover is added between the cyclone separator and the air inlet end of the rotor type rotary blower, so that the normal use of the rotor type rotary blower is ensured.
The invention is further provided with: the cloth bag dust remover comprises a first box body, an ash bucket arranged at the lower end of the first box body, a first partition plate arranged in the first box body and provided with a plurality of first mounting holes, an air inlet pneumatic disc valve arranged at the bottom of the first box body, an air outlet pneumatic disc valve arranged at the top of the first box body, a plurality of first cloth bag filter cylinders arranged at the first mounting holes, an air supplementing pneumatic disc valve arranged at the top of the first box body, an ash removing pneumatic disc valve arranged at the periphery of the ash bucket, and a first negative pressure suck-back mechanism connected to the ash removing pneumatic disc valve, wherein the air outlet pipe of the air inlet pneumatic disc valve is connected with an air return pipe, and the air outlet pneumatic disc valve and the air supplementing pneumatic disc valve are communicated with a cavity of the first box body above the first partition plate.
Through adopting above-mentioned technical scheme, after the sack cleaner uses for a long time, the dust can be attached gradually on first sack filter cartridge surface, when the dust on first sack filter cartridge surface is cleared up this moment, clear up the dust of piling up in ash bucket department earlier, close air inlet pneumatic disk valve and air outlet pneumatic disk valve again, open air supply pneumatic disk valve, the pneumatic disk valve of deashing, then under the effect of first negative pressure suck-back mechanism, make the air reverse flow, thereby realize blowing down the dust that will attach on low pressure sack filter cartridge surface and carry out negative pressure suck-back.
The invention is further provided with: the plurality of first cloth bag filter cartridges are distributed in an array, a plurality of square pipelines for respectively wrapping the plurality of first cloth bag filter cartridges in the same row are arranged below the first partition board, and a suck-back communication mechanism is arranged between the air supplementing pneumatic disc valve, the ash removing pneumatic disc valve and the corresponding plurality of first cloth bag filter cartridges in any square pipeline; the back suction communication mechanism comprises an air inlet box, a first driving cylinder, a first flexible corrugated telescopic pipe, an air outlet box, a second driving cylinder and a second flexible corrugated telescopic pipe, wherein the air inlet box is slidably connected to the upper surface of a partition plate and can be aligned with a plurality of first mounting holes corresponding to one square pipeline in the sliding process; the first negative pressure suck-back mechanism comprises a first centrifugal fan communicated with the ash removal pneumatic disc valve, a first feed back pipe arranged between the air outlet end of the first centrifugal fan and the feeding end of the cyclone separator, and a first control valve arranged at the joint of the first feed back pipe and the feeding end of the cyclone separator.
By adopting the technical scheme, when the dust attached to the surface of the first cloth bag filter is cleaned, the first driving cylinder drives the air inlet box to be communicated with the first cloth bag filter cylinders in the same row, the second driving cylinder drives the air outlet box to be communicated with the corresponding square pipeline, and then the air supplementing pneumatic disc valve, the ash removing pneumatic disc valve and the first negative pressure suck-back mechanism are opened, so that the dust attached to the first cloth bag filter cylinders in the row can be cleaned gradually under the action of no shutdown of the cloth bag dust remover; meanwhile, because the bag-type dust remover does not need to be stopped, in the working process of the first negative pressure back suction mechanism (the first control valve is in an opening state), dust can be directly conveyed into the cyclone separator, and then the dust is discharged from the discharge end of the cyclone separator under the action of the cyclone separator; finally, the dust-removing device has the function of removing dust attached to the surface of the first cloth bag filter cartridge without stopping.
The invention is further provided with: the air inlet box is characterized in that a lifting ring is arranged on the periphery of the air inlet box, an elastic assembly for driving the air inlet box to move downwards is arranged between the periphery of the air inlet box and the lifting ring, an annular flexible sealing sheet is arranged between the edge of the upper surface of the lifting ring and the periphery of the air inlet box, a sealing ring is arranged on the lower surface of the lifting ring, and the sealing ring abuts against the upper surface of the first partition plate under the action of the elastic assembly so as to surround a plurality of first mounting holes.
Through adopting the technical scheme, the lifting ring is arranged on the air inlet box shaft in a lifting way, the upper edge of the lifting ring and the air inlet box are sealed through the annular flexible sealing piece, and the lifting ring moves downwards under the action of the elastic component to enable the sealing ring to keep abutting against the upper surface of the first partition plate so as to realize sealing coverage of a plurality of first mounting holes; the mutual influence of flowing wind in the dust removing working state and the ash cleaning working state is avoided.
The invention is further provided with: the elastic component includes a plurality of connection pieces that set up in air inlet case week side, sets up on the lift ring and vertically pass the connecting axle of connection piece, the compression spring of cover establish on the connecting axle and both ends butt tightly between connection piece and lift ring.
Through adopting above-mentioned technical scheme, elastic component includes connection piece, connecting axle and compression spring to realize that the sealing washer of lifting ring lower surface keeps supporting tightly on first baffle, in order to realize sealing around a plurality of corresponding first mounting holes.
The invention is further provided with: the cloth bag dust collector comprises a second box body, a second partition plate, a second cloth bag filter cylinder, a plurality of sleeves and a third partition plate, wherein the second partition plate is arranged in the second box body and provided with a plurality of second mounting holes, the second cloth bag filter cylinder is arranged at the second mounting holes, the plurality of sleeves are arranged on the lower surface of the second partition plate and are used for wrapping the second cloth bag filter cylinder, the third partition plate is arranged at the bottom of the second box body and communicated with the plurality of sleeves, and the second box body is cylindrical, and the plurality of second mounting holes are arranged in a radial array and then are distributed in a circumferential array along the central line of the second box body; the bottom of the second box body is provided with an opening and sleeved on an air outlet pipe at the top of the cyclone separator, the bottom of the second box body is arranged in a conical shape and is connected with the edge of the top of the air outlet pipe at the top of the cyclone separator, and the top of the second box body is communicated with the air return pipe; and a second negative pressure back suction mechanism for realizing the back suction of dust negative pressure on the surface of any group of second cloth bag filter cartridges which are arranged along the radial direction into the cyclone separator is arranged between the second box body and the feeding end of the cyclone separator.
By adopting the technical scheme, the dust filtered by the bag-type dust collector is the conveyed material, so that the second box body of the bag-type dust collector is directly arranged at the top of the cyclone separator, and the ash bucket of the conventional bag-type dust collector is canceled; meanwhile, more dust is adhered to the surface of the second cloth bag filter cylinder in the use process of the cloth bag dust collector, dust removal operation is required, and the second negative pressure back suction mechanism can realize that any group of dust on the surface of the second cloth bag filter cylinder which is arranged along the radial direction is back sucked into the cyclone separator so as to realize the dust removal operation on the basis of no shutdown; meanwhile, the bag-type dust collector is directly positioned at the top of the cyclone separator, so that the filtering effect of the bag-type dust collector is better, the air circulation path is reduced, and the negative pressure intensity of the bag-type dust collector in the use process is improved.
The invention is further provided with: the second negative pressure suck-back mechanism comprises an air collecting box, a speed reducing motor, an air outlet connector, a third flexible corrugated telescopic pipe, a second centrifugal fan, a second return pipe and a second control valve, wherein the air collecting box is rotatably connected to the lower surface of the third partition plate, the sleeve can be communicated with any group of sleeves which are arranged along the radial direction in the rotation process, the speed reducing motor is arranged above the third partition plate and is in linkage with the air collecting box after penetrating through the third partition plate, the air outlet connector is arranged below the second box, the third flexible corrugated telescopic pipe is connected between the air collecting box and the air outlet connector, the second centrifugal fan is communicated with the air outlet connector, the second return pipe is arranged between the air outlet end of the second centrifugal fan and the feeding end of the cyclone separator, and the second control valve is arranged at the joint of the second return pipe and the feeding end of the cyclone separator.
By adopting the technical scheme, when the second negative pressure back suction mechanism is used, the air collecting box is driven to rotate by the speed reducing motor so as to realize the communication aligned to any group along radial arrangement, at the moment, after the second centrifugal fan and the second control valve are opened, air discharged from other second cloth bag filter cylinders enters a row of second cloth bag filter cylinders which need to be cleaned, and enters the cyclone separator along the sleeve, the air collecting box, the third flexible corrugated telescopic pipe, the second centrifugal fan and the second feed back pipe, so that dust is discharged from the discharge end of the cyclone separator under the action of the cyclone separator; finally, the dust-removing device has the function of removing dust attached to the surface of the second cloth bag filter cartridge without stopping.
The invention is further provided with: along the radial direction of the central line of the second box body, the radius of the second cloth bag filter cartridge gradually increases towards the direction far away from the central line, and the radius of the sleeve gradually increases towards the direction far away from the central line.
Through adopting above-mentioned technical scheme, because the second box is tube-shape and a plurality of second mounting holes are radial arrangement earlier and then circumference array distribution along the central line of second box, this moment along the radial of the central line of second box, the radius of second sack cartridge filter is towards the direction of keeping away from the central line increase gradually to can improve the filtration area of sack cleaner, also can improve the space utilization when installing, improve filtration total area and filter effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of embodiment 1;
FIG. 2 is a schematic view showing the structures of a cyclone separator and a bag-type dust collector in example 1;
FIG. 3 is a schematic view showing the structure of a bag-type dust collector in example 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
fig. 5 is a schematic structural view of embodiment 2;
FIG. 6 is a schematic view showing the structures of a cyclone separator and a bag-type dust collector in example 2;
fig. 7 is a schematic view showing the structure of a part of the cyclone separator and the bag-type dust collector in example 2.
In the figure: 1. rotating the feeder; 2. a rotor type rotary blower; 3. a cyclone separator; 4. a material conveying pipe; 5. an air return pipe; 6. a bag-type dust collector; 61. a first case; 62. an ash bucket; 63. a first separator; 631. a first mounting hole; 64. an air intake pneumatic disc valve; 65. an air-out pneumatic disc valve; 66. a first cloth bag filter cartridge; 67. a pneumatic disc valve for supplementing air; 68. a dust-removing pneumatic disc valve; 69. a first negative pressure suck-back mechanism; 691. a first centrifugal fan; 692. a first feed back pipe; 693. a first control valve; 610. square pipes; 611. a suck-back communication mechanism; 6111. an air inlet box; 6112. a first driving cylinder; 6113. a first flexible bellows; 6114. a wind outlet box; 6115. a second driving cylinder; 6116. a second flexible bellows; 612. lifting rings; 6121. a seal ring; 613. an elastic component; 6131. a connecting sheet; 6132. a connecting shaft; 6133. a compression spring; 614. an annular flexible sealing sheet; 615. a second case; 616. a second separator; 6161. a second mounting hole; 617. a second cloth bag filter cartridge; 618. a sleeve; 619. a third separator; 620. a second negative pressure suck-back mechanism; 6201. a wind collecting box; 6202. a speed reducing motor; 6203. an air outlet joint; 6204. a third flexible bellows; 6205. a second centrifugal fan; 6206. a second feed back pipe; 6207. and a second control valve.
Detailed Description
The technical scheme of the present invention will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. 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 fall within the scope of the invention.
Example 1: the utility model provides a circulating fluidization negative pressure dilute phase dust strength ash conveying and discharging system, as shown in figure 1, includes rotary feeder 1, rotor type rotary blower 2 that the air-out end is connected with rotary feeder 1, cyclone 3, connect the conveying pipeline 4 between rotary feeder 1 and cyclone 3, connect the return air pipe 5 at the air inlet end of rotor type rotary blower 2, set up the sack cleaner 6 between outlet duct and the return air pipe 5 at cyclone 3 top.
As shown in fig. 1 and 2, the bag-type dust collector 6 includes a first casing 61, an ash bucket 62 disposed at a lower end of the first casing 61, a first partition 63 disposed in the first casing 61 and having a plurality of first mounting holes 631 (not shown), an inlet air-operated disk valve 64 disposed at a bottom of the first casing 61, an outlet air-operated disk valve 65 disposed at a top of the first casing 61, a plurality of first bag-type filter cartridges 66 disposed at the first mounting holes 631, an air-compensating disk valve 67 disposed at a top of the first casing 61, an ash-removing pneumatic disk valve 68 disposed at a peripheral side of the ash bucket 62, and a first negative pressure suck-back mechanism 69 connected to the ash-removing pneumatic disk valve 68, the inlet air-operated disk valve 64 being connected to an outlet pipe of the cyclone 3, the outlet air-operated disk valve 65 being connected to the return air pipe 5, the outlet air-operated disk valve 65, and the air-compensating disk valve 67 being communicated with a cavity of the first casing 61 above the first partition 63.
As shown in fig. 2 and 3, a plurality of first cloth bag filter cartridges 66 are distributed in an array, a plurality of square pipelines 610 for respectively wrapping a plurality of first cloth bag filter cartridges 66 in the same row are arranged below the first partition 63, and a suck-back communication mechanism 611 is arranged between the corresponding plurality of first cloth bag filter cartridges 66 in any one of the square pipelines 610 and the air-supplementing pneumatic disc valve 67 and the ash-cleaning pneumatic disc valve 68. The back suction communication mechanism 611 comprises an air inlet box 6111 which is connected to the upper surface of the first partition 63 in a sliding manner and can realize alignment with a plurality of first mounting holes 631 corresponding to one square pipeline 610 in the sliding process, a first driving cylinder 6112 which is arranged between the first box body 61 and the air inlet box 6111 and drives the air inlet box 6111 to move, a first flexible corrugated telescopic pipe 6113 which is arranged between the air supplementing pneumatic disc valve 67 and the air inlet box 6111, an air outlet box 6114 which is connected to the first box body 61 in a sliding manner and can realize alignment with the bottom opening of any square pipeline 610 in the sliding process, a second driving cylinder 6115 which is arranged between the first box body 61 and the air outlet box 6114 and drives the air outlet box 6114 to move, and a second flexible corrugated telescopic pipe 6116 which is arranged between the air outlet box 6114 and the ash removing pneumatic disc valve 68.
As shown in fig. 2 and 3, the first negative pressure suck-back mechanism 69 comprises a first centrifugal fan 691 communicated with the ash removal pneumatic disc valve 68, a first feed back pipe 692 arranged between the air outlet end of the first centrifugal fan 691 and the feed end of the cyclone separator 3, and a first control valve 693 arranged at the joint of the first feed back pipe 692 and the feed end of the cyclone separator 3.
As shown in fig. 3 and 4, a lifting ring 612 is arranged on the periphery of the air inlet box 6111, an elastic assembly 613 for driving the air inlet box 6111 to move downwards is arranged between the periphery of the air inlet box 6111 and the lifting ring 612, an annular flexible sealing plate 614 is arranged between the edge of the upper surface of the lifting ring 612 and the periphery of the air inlet box 6111, a sealing ring 6121 is arranged on the lower surface of the lifting ring 612, and the sealing ring 6121 abuts against the upper surface of the first partition plate 63 under the action of the elastic assembly 613 so as to surround a plurality of first mounting holes 631. The elastic component 613 comprises a plurality of connecting pieces 6131 arranged on the periphery of the air inlet box 6111, a connecting shaft 6132 arranged on the lifting ring 612 and vertically penetrating through the connecting pieces 6131, and a compression spring 6133 sleeved on the connecting shaft 6132, and two ends of the compression spring are abutted between the connecting pieces 6131 and the lifting ring 612.
The implementation effect is as follows: after entering a material conveying pipe 4 through a rotary feeder 1, the materials are conveyed to a cyclone separator 3 by airflow in a pressing way, most of the materials are discharged through a discharger at the bottom of the cyclone separator 3, and a small part of the powder which is not separated completely enters a bag-type dust remover 6 along with the airflow to be filtered, and the wind output from the bag-type dust remover 6 enters a rotor-type rotary blower 2 through a return air pipe 5 to be circulated; in the process, the rotor type rotary blower 2 with larger inlet and outlet pressure difference is adopted as an air source device, but because the blower requires that a tiny gap is kept between a rotor of the blower and a shell and an end cover, dust is not allowed to pass through by airflow, a bag-type dust collector 6 is added between the cyclone separator 3 and the air inlet end of the rotor type rotary blower 2, so that the normal use of the rotor type rotary blower 2 is ensured.
After the bag-type dust collector 6 is used for a long time, dust is gradually attached to the surface of the first bag-type filter cartridge 66, at this time, when the dust on the surface of the first bag-type filter cartridge 66 is cleaned, the dust accumulated on the dust hopper 62 is cleaned, then the air inlet pneumatic disc valve 64 and the air outlet pneumatic disc valve 65 are closed, the air supplementing pneumatic disc valve 67 and the ash removing pneumatic disc valve 68 are opened, and then the air reversely flows under the action of the first negative pressure suck-back mechanism 69, so that the dust attached to the surface of the low-pressure bag-type filter cartridge is blown down and negative pressure suck-back is realized. When the dust attached to the surface of the first cloth bag filter is cleaned, the air inlet box 6111 is driven by the first driving cylinder 6112 to be communicated with the first cloth bag filter cylinder 66 in the same row, the air outlet box 6114 is driven by the second driving cylinder 6115 to be communicated with the corresponding square pipeline 610, and then the air supplementing pneumatic disc valve 67, the ash removing pneumatic disc valve 68 and the first negative pressure suck-back mechanism 69 are opened, so that the dust attached to the first cloth bag filter cylinder 66 in the row can be cleaned gradually under the action of the non-stop cloth bag dust remover 6; meanwhile, because the bag-type dust collector 6 does not need to be stopped, in the working process of the first negative pressure back suction mechanism 69 (the first control valve 693 needs to be in an open state), dust can be directly conveyed into the cyclone separator 3, and then the dust is discharged from the discharge end of the cyclone separator 3; finally, the dust attached to the surface of the first cloth bag filter cartridge 66 can be cleaned without stopping the machine.
Example 2: as shown in fig. 5 and 6, the ash conveying and discharging system for circulating fluidized negative pressure dilute phase dust is different from the embodiment 1 in that the structure of the bag-type dust remover 6 is different, and the bag-type dust remover 6 comprises a second box 615, a second baffle 616 arranged in the second box 615 and provided with a plurality of second mounting holes 6161, a second bag-type filter cartridge 617 arranged at the second mounting holes 6161, a plurality of sleeves 618 arranged on the lower surface of the second baffle 616 and used for wrapping the second bag-type filter cartridge 617, and a third baffle 619 arranged at the bottom of the second box 615 and communicated with the plurality of sleeves 618. The second box 615 is cylindrical, and a plurality of second mounting holes 6161 are arranged in a radial direction and then distributed in a circumferential array along the center line of the second box 615; the bottom of the second box 615 is provided with an opening and sleeved on an air outlet pipe at the top of the cyclone separator 3, the bottom of the second box 615 is arranged in a conical shape and is connected with the edge of the top of the air outlet pipe at the top of the cyclone separator 3, and the top of the second box 615 is communicated with the air return pipe 5; a second negative pressure suck-back mechanism 620 for sucking back dust negative pressure on the surface of any group of second cloth bag filter cartridges 617 arranged along the radial direction into the cyclone separator 3 is arranged between the second box 615 and the feeding end of the cyclone separator 3.
As shown in fig. 6 and 7, the second negative pressure suck-back mechanism 620 includes a wind collecting box 6201 rotatably connected to the lower surface of the third partition 619 and capable of communicating with any one of the sets of radially arranged sleeves 618 during rotation, a speed reducing motor 6202 disposed above the third partition 619 and linked with the wind collecting box 6201 after passing through the third partition 619, an air outlet joint 6203 disposed below the second box 615, a third flexible bellows 6204 connected between the wind collecting box 6201 and the air outlet joint 6203, a second centrifugal fan 6205 communicating with the air outlet joint 6203, a second feed back pipe 6206 disposed between the air outlet end of the second centrifugal fan 6205 and the feed end of the cyclone 3, and a second control valve 6207 disposed at the junction of the second feed back pipe 6206 and the feed end of the cyclone 3.
As shown in fig. 6 and 7, the radius of the second cloth bag filter cartridge 617 gradually increases in a direction away from the center line along the radial direction of the center line of the second casing 615, and the radius of the sleeve 618 gradually increases in a direction away from the center line.
The implementation effect is as follows: because the dust filtered by the bag-type dust collector 6 is the conveyed material, the second box 615 of the bag-type dust collector 6 is directly arranged at the top of the cyclone separator 3, and the setting of the ash hopper 62 of the conventional bag-type dust collector 6 is canceled; meanwhile, more dust is adhered to the surface of the second cloth bag filter cylinder 617 in the using process of the cloth bag dust collector 6, and the dust removal operation is required, and the second negative pressure back suction mechanism 620 can realize that any group of dust negative pressure on the surface of the second cloth bag filter cylinder 617 arranged along the radial direction is back sucked into the cyclone separator 3, so that the dust removal operation is performed on the basis of no shutdown. When the second negative pressure back suction mechanism 620 is used, the air collection box 6201 is driven to rotate by the speed reducing motor 6202 to realize the communication aligned to any group along the radial direction, at this time, after the second centrifugal fan 6205 and the second control valve 6207 are opened, the air discharged from the other second cloth bag filter cartridges 617 enters a row of second cloth bag filter cartridges 617 to be cleaned, and enters the cyclone separator 3 along the sleeve 618, the air collection box 6201, the third flexible corrugated telescopic pipe 6204, the second centrifugal fan 6205 and the second material return pipe 6206, so that dust is discharged from the discharge end of the cyclone separator 3; finally, the dust attached to the surface of the second cloth bag filter cartridge 617 can be cleaned without stopping the machine. Meanwhile, the bag-type dust collector 6 is directly positioned at the top of the cyclone separator 3, so that the filtering effect of the bag-type dust collector 3 is better, the air circulation path is reduced, and the negative pressure intensity of the bag-type dust collector 3 in the use process is improved.
Claims (8)
1. The utility model provides a circulating fluidization negative pressure dilute phase dust strength ash conveying system which characterized in that: the cyclone dust collector comprises a rotary feeder (1), a rotor type rotary blower (2) with an air outlet end connected with the rotary feeder (1), a cyclone separator (3), a conveying pipe (4) connected between the rotary feeder (1) and the cyclone separator (3), a return air pipe (5) connected with an air inlet end of the rotor type rotary blower (2), and a bag-type dust collector (6) arranged between an air outlet pipe at the top of the cyclone separator (3) and the return air pipe (5).
2. The circulating fluidized negative pressure dilute phase dust pneumatic ash conveying and discharging system according to claim 1, wherein the system is characterized in that: the cloth bag dust remover (6) comprises a first box body (61), an ash bucket (62) arranged at the lower end of the first box body (61), a first partition plate (63) arranged in the first box body (61) and provided with a plurality of first mounting holes (631), an air inlet pneumatic disc valve (64) arranged at the bottom of the first box body (61), an air outlet pneumatic disc valve (65) arranged at the top of the first box body (61), a plurality of first cloth bag filter cylinders (66) arranged at the first mounting holes (631), an ash removing pneumatic disc valve (67) arranged at the top of the first box body (61), a first negative pressure back suction mechanism (69) arranged at the periphery of the ash bucket (62), and an air outlet pipe connected with the ash removing pneumatic disc valve (68), wherein the air inlet pneumatic disc valve (64) is connected with an air outlet pipe of the cyclone separator (3), and the air outlet pneumatic disc valve (65) and the air outlet pipe (5) are connected with each other, and the air outlet pneumatic disc valve (65) and the ash removing pneumatic disc valve (67) are arranged on the partition plate (61) of the first box body (61) which is communicated with each other.
3. The circulating fluidized negative pressure dilute phase dust pneumatic ash conveying and discharging system according to claim 2, wherein the system is characterized in that: the plurality of first cloth bag filter cartridges (66) are distributed in an array, a plurality of square pipelines (610) for respectively wrapping the plurality of first cloth bag filter cartridges (66) in the same row are arranged below the first partition plate (63), and a suck-back communication mechanism (611) is arranged among the corresponding plurality of first cloth bag filter cartridges (66) in any one of the square pipelines (610) and the air supplementing pneumatic disc valve (67) and the ash cleaning pneumatic disc valve (68);
the back suction communication mechanism (611) comprises an air inlet box (6111) which is connected to the upper surface of the partition plate in a sliding way and can be aligned with a plurality of first mounting holes (631) corresponding to one square pipeline (610), a first driving cylinder (6112) which is arranged between the first box body (61) and the air inlet box (6111) and drives the air inlet box (6111) to move, a first flexible corrugated telescopic pipe (6113) which is arranged between the air supplementing pneumatic disc valve (67) and the air inlet box (6111), an air outlet box (6114) which is connected to the first box body (61) in a sliding way and can be aligned with the bottom opening of any square pipeline (610) in the sliding way, a second driving cylinder (6115) which is arranged between the first box body (61) and the air outlet box (6114) and drives the air outlet box (6114) to move, and a second flexible corrugated telescopic pipe (6116) which is arranged between the air outlet box (6114) and the ash removing pneumatic disc valve (68);
the first negative pressure back suction mechanism (69) comprises a first centrifugal fan (691) communicated with the ash removal pneumatic disc valve (68), a first feed back pipe (692) arranged between the air outlet end of the first centrifugal fan (691) and the feeding end of the cyclone separator (3), and a first control valve (693) arranged at the joint of the first feed back pipe (692) and the feeding end of the cyclone separator (3).
4. A circulating fluidized negative pressure dilute phase dust pneumatic ash handling system according to claim 3, characterized in that: the novel air inlet box comprises an air inlet box body (6111), and is characterized in that a lifting ring (612) is arranged on the periphery of the air inlet box body (6111), an elastic assembly (613) for driving the air inlet box body (6111) to move downwards is arranged between the periphery of the air inlet box body (6111) and the lifting ring (612), an annular flexible sealing sheet (614) is arranged between the edge of the upper surface of the lifting ring (612) and the periphery of the air inlet box body (6111), a sealing ring (6121) is arranged on the lower surface of the lifting ring (612), and the sealing ring (6121) abuts against the upper surface of the first partition plate (63) under the action of the elastic assembly (613) so as to surround a plurality of first mounting holes (631).
5. The circulating fluidized negative pressure dilute phase dust pneumatic ash conveying and discharging system according to claim 4, wherein the system comprises the following components: the elastic component (613) comprises a plurality of connecting pieces (6131) arranged on the periphery of the air inlet box (6111), a connecting shaft (6132) arranged on the lifting ring (612) and vertically penetrating through the connecting pieces (6131), and a compression spring (6133) sleeved on the connecting shaft (6132) and two ends of the compression spring are abutted between the connecting pieces (6131) and the lifting ring (612).
6. The circulating fluidized negative pressure dilute phase dust pneumatic ash conveying and discharging system according to claim 1, wherein the system is characterized in that: the cloth bag dust collector (6) comprises a second box body (615), a second partition plate (616) which is arranged in the second box body (615) and provided with a plurality of second mounting holes (6161), a second cloth bag filter cylinder (617) which is arranged at the second mounting holes (6161), a plurality of sleeves (618) which are arranged on the lower surface of the second partition plate (616) and are used for wrapping the second cloth bag filter cylinder (617), and a third partition plate (619) which is arranged at the bottom of the second box body (615) and is communicated with the sleeves (618), wherein the second box body (615) is cylindrical, and the plurality of second mounting holes (6161) are radially arranged along the central line of the second box body (615) and then are distributed in a circumferential array;
the bottom of the second box body (615) is provided with an opening and sleeved on an air outlet pipe at the top of the cyclone separator (3), the bottom of the second box body (615) is arranged in a conical shape and is connected with the edge of the top of the air outlet pipe at the top of the cyclone separator (3), and the top of the second box body (615) is communicated with the air return pipe (5); a second negative pressure back suction mechanism (620) for realizing the back suction of dust negative pressure on the surface of any group of second cloth bag filter cartridges (617) which are arranged along the radial direction into the cyclone separator (3) is arranged between the second box body (615) and the feeding end of the cyclone separator (3).
7. The circulating fluidized negative pressure dilute phase dust pneumatic ash conveying and discharging system according to claim 6, wherein the system is characterized in that: the second negative pressure back suction mechanism (620) comprises an air collecting box (6201) which is rotationally connected to the lower surface of the third partition plate (619) and can be communicated with any group of sleeves (618) which are arranged along the radial direction in the rotation process, a gear motor (6202) which is arranged above the third partition plate (619) and is linked with the air collecting box (6201) after passing through the third partition plate (619), an air outlet joint (6203) which is arranged below the second box body (615), a third flexible corrugated telescopic pipe (6204) which is connected between the air collecting box (6201) and the air outlet joint (6203), a second centrifugal fan (6205) which is communicated with the air outlet joint (6203), a second feed back pipe (6206) which is arranged between the air outlet end of the second centrifugal fan (6205) and the feed end of the cyclone separator (3), and a second control valve (6207) which is arranged at the joint of the feed end of the second feed back pipe (6206) and the cyclone separator (3).
8. The circulating fluidized negative pressure dilute phase dust pneumatic ash conveying and discharging system according to claim 7, wherein: along the radial direction of the central line of the second box body (615), the radius of the second cloth bag filter cartridge (617) gradually increases towards the direction far away from the central line, and the radius of the sleeve (618) gradually increases towards the direction far away from the central line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310352513.8A CN116588695A (en) | 2023-04-04 | 2023-04-04 | Circulating fluidization negative pressure dilute phase dust pneumatic ash conveying and discharging system |
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| CN202310352513.8A CN116588695A (en) | 2023-04-04 | 2023-04-04 | Circulating fluidization negative pressure dilute phase dust pneumatic ash conveying and discharging system |
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| CN116588695A true CN116588695A (en) | 2023-08-15 |
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| CN202310352513.8A Pending CN116588695A (en) | 2023-04-04 | 2023-04-04 | Circulating fluidization negative pressure dilute phase dust pneumatic ash conveying and discharging system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118179159A (en) * | 2024-05-16 | 2024-06-14 | 四川鸿图实业有限公司 | Back-suction ash-cleaning dust remover |
| CN118419608A (en) * | 2024-07-02 | 2024-08-02 | 龙岩市京宇科技有限公司 | Energy-saving circulating conveying system and method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2405344A1 (en) * | 1974-02-05 | 1975-08-07 | Schreiber Willi | Back blowing air filter using travelling nozzles - leading from moving upper and lower walls of duct |
| FR2425882A1 (en) * | 1978-05-17 | 1979-12-14 | Meyer Paul | Continuously-regenerating multi-sleeve solids filter for gases - has suction pipe connectable in turn to sleeve inlets to withdraw solids while remaining sleeves continue filtering |
| JPH06154533A (en) * | 1992-11-17 | 1994-06-03 | Matsui Mfg Co | Dust shaking down apparatus of collecting apparatus |
| JPH08266839A (en) * | 1995-03-30 | 1996-10-15 | Nittetsu Mining Co Ltd | Gas filter |
| JP2007244989A (en) * | 2006-03-15 | 2007-09-27 | Hitachi Plant Technologies Ltd | Continuous discharge type dust collector and dust collection method |
| CN202538533U (en) * | 2012-05-07 | 2012-11-21 | 刘方旭 | Mechanically-rotary electric reverse-blowing bag type dust collecting device |
| DE102012207139A1 (en) * | 2012-04-27 | 2013-10-31 | GARANT-Filter GmbH | Method and device for filtering particles from gases |
| CN106621600A (en) * | 2016-12-08 | 2017-05-10 | 彭州市运达知识产权服务有限公司 | Rotary type blowback bag dust collector |
| CN113280614A (en) * | 2021-06-04 | 2021-08-20 | 西安索里德电气有限公司 | Wet powder drying system based on closed-loop conveying |
| CN214680678U (en) * | 2021-02-25 | 2021-11-12 | 河南前景环保设备有限公司 | Moxibustion chamber centralized smoke exhaust system |
| KR20230000031A (en) * | 2021-06-23 | 2023-01-02 | 재단법인 포항산업과학연구원 | Dust collection system |
-
2023
- 2023-04-04 CN CN202310352513.8A patent/CN116588695A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2405344A1 (en) * | 1974-02-05 | 1975-08-07 | Schreiber Willi | Back blowing air filter using travelling nozzles - leading from moving upper and lower walls of duct |
| FR2425882A1 (en) * | 1978-05-17 | 1979-12-14 | Meyer Paul | Continuously-regenerating multi-sleeve solids filter for gases - has suction pipe connectable in turn to sleeve inlets to withdraw solids while remaining sleeves continue filtering |
| JPH06154533A (en) * | 1992-11-17 | 1994-06-03 | Matsui Mfg Co | Dust shaking down apparatus of collecting apparatus |
| JPH08266839A (en) * | 1995-03-30 | 1996-10-15 | Nittetsu Mining Co Ltd | Gas filter |
| JP2007244989A (en) * | 2006-03-15 | 2007-09-27 | Hitachi Plant Technologies Ltd | Continuous discharge type dust collector and dust collection method |
| DE102012207139A1 (en) * | 2012-04-27 | 2013-10-31 | GARANT-Filter GmbH | Method and device for filtering particles from gases |
| CN202538533U (en) * | 2012-05-07 | 2012-11-21 | 刘方旭 | Mechanically-rotary electric reverse-blowing bag type dust collecting device |
| CN106621600A (en) * | 2016-12-08 | 2017-05-10 | 彭州市运达知识产权服务有限公司 | Rotary type blowback bag dust collector |
| CN214680678U (en) * | 2021-02-25 | 2021-11-12 | 河南前景环保设备有限公司 | Moxibustion chamber centralized smoke exhaust system |
| CN113280614A (en) * | 2021-06-04 | 2021-08-20 | 西安索里德电气有限公司 | Wet powder drying system based on closed-loop conveying |
| KR20230000031A (en) * | 2021-06-23 | 2023-01-02 | 재단법인 포항산업과학연구원 | Dust collection system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118179159A (en) * | 2024-05-16 | 2024-06-14 | 四川鸿图实业有限公司 | Back-suction ash-cleaning dust remover |
| CN118179159B (en) * | 2024-05-16 | 2024-07-30 | 四川鸿图实业有限公司 | Back-suction ash-cleaning dust remover |
| CN118419608A (en) * | 2024-07-02 | 2024-08-02 | 龙岩市京宇科技有限公司 | Energy-saving circulating conveying system and method |
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Application publication date: 20230815 |