CN112791948A - Anti-blocking self-dewatering high-frequency wet screening device - Google Patents
Anti-blocking self-dewatering high-frequency wet screening device Download PDFInfo
- Publication number
- CN112791948A CN112791948A CN202110134676.XA CN202110134676A CN112791948A CN 112791948 A CN112791948 A CN 112791948A CN 202110134676 A CN202110134676 A CN 202110134676A CN 112791948 A CN112791948 A CN 112791948A
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- screen
- screen cloth
- frequency
- screening device
- wet screening
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- 238000012216 screening Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 46
- 239000007921 spray Substances 0.000 claims abstract description 18
- 239000004744 fabric Substances 0.000 claims description 33
- 239000000725 suspension Substances 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 21
- 239000004576 sand Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000018044 dehydration Effects 0.000 abstract description 2
- 238000006297 dehydration reaction Methods 0.000 abstract description 2
- 239000004575 stone Substances 0.000 description 8
- 239000000428 dust Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B07B1/46—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
- B07B1/50—Cleaning
- B07B1/55—Cleaning with fluid jets
-
- 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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed 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
- B07B2230/00—Specific aspects relating to the whole B07B subclass
- B07B2230/01—Wet separation
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention provides an anti-blocking self-dewatering high-frequency wet screening device which comprises a high-frequency screen, wherein a feed hopper, a first screen, a second screen and a third screen are arranged on the high-frequency screen, the first screen, the second screen and the third screen are sequentially connected from top to bottom along the same inclined working surface, the feed hopper is positioned above the first screen, a spray pipe is arranged at the upper part of the feed hopper, the inlet end of the spray pipe is connected with a booster pump through a pipeline, and the spray pipe is arranged obliquely downwards. The invention ensures the dehydration effect of the sand material, reduces the feed water content of the crusher in the sand making process, prevents the cavity from being blocked, reduces the maintenance cost of equipment, improves the production efficiency and avoids production accidents. And prevent to block up the sieve mesh, guaranteed the screening effect, prevent that the material from by repeated breakage, practiced thrift the energy, guaranteed the quality of grit aggregate.
Description
Technical Field
The invention relates to the technical field of wet screening sand making, in particular to an anti-blocking self-dewatering high-frequency wet screening device.
Background
Compared with a common sieve, the high-frequency sieve can easily damage the surface tension of the material, accelerates the oscillation of the material on the surface of the sieve and further accelerates the separation speed of the material. The high-frequency sieve has the advantages of difficult hole blockage, high separation efficiency and the like, and is widely applied to sandstone production.
When sand and stone processing is carried out under the condition of strong wind, although spraying devices are arranged at a plurality of places in a production field for dust suppression, raised dust during screening is still difficult to solve, and the produced sand is large, thereby causing serious environmental influence. The problem of large sand blown by the wind can be solved by utilizing wet screening. However, in a sand making workshop, the installation inclination angle of the high-frequency screen is large, the dehydration effect is difficult to guarantee, if the spray pipes are arranged on the screen surface, stone on the screen surface is led to be carried into the crusher, the stone with high water content easily causes the blockage of the cavity of the crusher, the normal production efficiency is influenced, and even production accidents can be caused. Moreover, the content of fine materials in the materials before screening is high, when the water content is high, the fine materials easily block the sieve pores, the screening effect is seriously influenced, the materials are repeatedly crushed, the energy is wasted, the content of stone powder is greatly increased, and the quality of the sandstone aggregate is influenced.
Disclosure of Invention
In order to solve the technical problem, the invention provides an anti-blocking self-dewatering high-frequency wet screening device.
The invention is realized by the following technical scheme.
The anti-blocking self-dewatering high-frequency wet screening device comprises a high-frequency screen, wherein a feed hopper, a first screen, a second screen and a third screen are arranged on the high-frequency screen, the first screen, the second screen and the third screen are sequentially connected from top to bottom along the same inclined working surface, the feed hopper is positioned above the first screen, a spray pipe is arranged at the upper part of the feed hopper, the inlet end of the spray pipe is connected with a booster pump through a pipeline, and the spray pipe is arranged obliquely downwards.
The high-frequency sieve comprises an upper support frame and a lower support frame, a vibrating motor is arranged on the upper support frame, a plurality of springs are arranged between the upper support frame and the lower support frame, a material collecting part is arranged on the lower portion of the upper support frame, the vertical plane projections of the first screen, the second screen and the third screen are all located within the range of the material collecting part, and the two sides of the first screen, the second screen and the third screen are connected with the upper support frame.
The spring is characterized in that an upper guide pillar and a lower guide pillar are respectively sleeved at two ends of the spring, the upper guide pillar is fixed on the upper support frame, the lower guide pillar is fixed on the lower support frame, and a gap is reserved between the upper guide pillar and the lower guide pillar.
The upper support frame both sides inboard is equipped with the flange, and the flange bottom is connected with first screen cloth, second screen cloth, third screen cloth, and the oblique lower end of flange is equipped with the kink of buckling to the middle part, and the kink bottom is equipped with the collecting board, and the collecting board links to each other with the third screen cloth.
The inclination angle of the collecting plate is smaller than that of the third screen.
The one end of collecting plate towards the third screen cloth is the screen cloth structure, and the one end that the third screen cloth was kept away from to the collecting plate is dull and stereotyped structure, and screen cloth structure's vertical plane projection is in the within range of material collection portion.
The inlet ends of the three spraying pipes are respectively connected with a main pipe, and the main pipe is connected with an inlet of the booster pump.
And the main pipe is provided with a flowmeter.
And a flow dividing valve is arranged between the flowmeter and the booster pump, a flow dividing pipeline is arranged on the flow dividing valve, and the flow dividing pipeline is connected with an inlet pipeline of the booster pump.
The material collecting part is of a funnel-shaped structure, an outlet pipe is arranged at the lower end of the funnel-shaped structure, and a flange is arranged on the outlet pipe.
The invention has the beneficial effects that:
according to the invention, fine materials are removed through the first screen, and the second screen and the third screen are used for dewatering while screening, so that the dewatering effect is ensured, the water content of the feed of the crusher in the sand making process is effectively reduced, the cavity is prevented from being blocked, the equipment maintenance cost is reduced, the production efficiency is improved, and production accidents are avoided. Utilize the impact force after water under high pressure and grit material mix, guaranteed the fine material rate of sieving of first screen cloth, prevent to block up the sieve mesh, guaranteed the screening effect, prevent that the material from by repeated breakage, practiced thrift the energy, guaranteed the quality of grit aggregate.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1-high frequency sieve, 2-feed hopper; 3-a spray pipe; 4-a booster pump; 5-a first screen; 6-a second screen; 7-a third screen; 8-lower support frame; 9-upper support frame; 10-a material collecting part; 11-a spring; 12-a vibration motor; 13-upper guide post; 14-lower guide posts; 15-blocking edges; 16-a collection plate; 17-main tube; 18-a flow meter; 19-a flow divider valve.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Fig. 1 shows a schematic structural diagram of the present invention:
the invention provides an anti-blocking self-dewatering high-frequency wet screening device which comprises a high-frequency screen 1, wherein a feed hopper 2, a first screen 5, a second screen 6 and a third screen 7 are arranged on the high-frequency screen 1, the first screen 5, the second screen 6 and the third screen 7 are sequentially connected from top to bottom along the same inclined working surface, the feed hopper 2 is positioned above the first screen 5, a spray pipe 3 is arranged at the upper part of the feed hopper 2, the inlet end of the spray pipe 3 is connected with a booster pump 4 through a pipeline, and the spray pipe 3 is arranged obliquely downwards.
During operation, the sand and stone material that will not sieve is input feeder hopper 2 with the sealing-tape machine, carries out the high pressure simultaneously and sprays through shower 3, and the sand and stone material in the unrestrained downwards mixes with water fast, has effectively avoided the raise dust. The proportion of control water spray volume and grit material can guarantee the screening rate of fine material on first screen cloth 5, and high pressure spray water mixes the back with the grit material simultaneously, and the thick liquid still has great kinetic energy, strikes first screen cloth 5 and can effectively restrain the fine material caking and be detained, has avoided the stifled hole. Since most of the fine materials pass through the screen holes on the first screen 5, the content of the fine materials on the second screen 6 and the third screen 7 is low, liquid impact force is not needed, and the probability of hole blockage is extremely low. The second screen 6 and the third screen 7 are dehydrated while screening, so that the moisture content of coarse materials at the outlet of the high-frequency screen 1 is lower than 3%, the coarse materials and dry materials can be mixed to prepare sand, and the blockage of a cavity of the crusher is effectively avoided.
According to the invention, fine materials are removed through the first screen 5, and the second screen 6 and the third screen 7 are used for dewatering while screening, so that the dewatering effect is ensured, the water content of the feed of the crusher in the sand making process is effectively reduced, the cavity is prevented from being blocked, the equipment maintenance cost is reduced, the production efficiency is improved, and the production accident is avoided. Utilize the impact force after water under high pressure and grit material mix, guaranteed the fine material rate of sieving of first screen cloth 5, prevent to block up the sieve mesh, guaranteed the screening effect, prevent that the material from by repeated breakage, practiced thrift the energy, guaranteed the quality of grit aggregate.
The high-frequency screen 1 comprises an upper support frame 9 and a lower support frame 8, a vibration motor 12 is arranged on the upper support frame 9, a plurality of springs 11 are arranged between the upper support frame 9 and the lower support frame 8, a material collecting part 10 is arranged on the lower portion of the upper support frame 9, the vertical plane projection of a first screen 5, a second screen 6 and a third screen 7 is located in the range of the material collecting part 10, and the first screen 5, the second screen 6 and the two sides of the third screen 7 are connected with the upper support frame 9. The upper supporting frame 9 is supported by the springs 11, so that the stability of the upper supporting frame 9 is guaranteed, the vibration flexibility of the upper supporting frame is guaranteed, the upper supporting frame 9 can vibrate at high frequency conveniently, the springs 11 can store vibration energy, and the energy loss is reduced. The fine slurry with water flows out of the collecting part, so that the centralized treatment is facilitated.
An upper guide post 13 and a lower guide post 14 are respectively sleeved at two ends of the spring 11, the upper guide post 13 is fixed on the upper support frame 9, the lower guide post 14 is fixed on the lower support frame 8, and a gap is formed between the upper guide post 13 and the lower guide post 14. The upper guide post 13 and the lower guide post 14 effectively restrain the vibration of the spring 11 in the horizontal direction, so that the spring 11 is prevented from generating plastic deformation under heavy load and transverse high-frequency alternating load, the service life of the spring 11 is prolonged, and the stability of the device is improved; in addition, the spring 11 is enabled to effectively store and release vibration energy along the vertical direction, and the effective utilization rate of the vibration energy is improved.
The upper support frame 9 both sides inboard is equipped with flange 15, and flange 15 bottom is connected with first screen cloth 5, second screen cloth 6, third screen cloth 7, and the oblique lower end of flange 15 is equipped with the kink of buckling to the middle part, and the kink bottom is equipped with collecting plate 16, and collecting plate 16 links to each other with third screen cloth 7. The flange 15 can play the guide effect to grit material, and kink and collecting plate 16 form binding off structure, and the thick grit material of being convenient for is concentrated on binding off structure and is exported to ejection of compact sealing-tape machine on, effectively prevents unrestrained.
The angle of inclination of the collection plate 16 is less than that of the third screen 7. The running track of the sand and stone material is inclined to the horizontal direction under the action of inertia, the discharging distance is increased, and the mounting difficulty of the discharging belt conveyor is reduced.
The end of the collecting plate 16 facing the third screen 7 is of a screen structure, the end of the collecting plate 16 far away from the third screen 7 is of a flat plate structure, and the vertical projection of the screen structure is in the range of the material collecting part 10. Under the inertia effect, part of water on the aggregate is separated from the aggregate and falls from the screen structure, so that the water content of the discharged material is further reduced.
The number of the spray pipes 3 is three, the inlet ends of the three spray pipes 3 are respectively connected with a main pipe 17, and the main pipe 17 is connected with the inlet of the booster pump 4. Make high-pressure rivers along the horizontal evenly distributed of feeder hopper 2 convenient to make the feeding moisture content of high frequency sieve 1 even, improved the suppression effect of dust, further reduced sieve mesh blocking rate.
A flowmeter 18 is arranged on the main pipe 17. The water content range of the sandstone feeding amount is conveniently controlled, and the water resource waste is avoided while the hole is not blocked.
A flow dividing valve 19 is arranged between the flow meter 18 and the booster pump 4, a flow dividing pipeline is arranged on the flow dividing valve 19, and the flow dividing pipeline is connected with an inlet pipeline of the booster pump 4. The surplus water is guided to the inlet of the booster pump 4 through the flow dividing valve 19, the pressure of the inlet of the booster pump 4 is improved, the energy waste is reduced, the control difficulty of high-pressure spraying water is reduced, the water pressure fluctuation is small when the water quantity is regulated, and the stability of the spraying water quantity and the water pressure is ensured.
The material collecting part 10 is of a funnel-shaped structure, an outlet pipe is arranged at the lower end of the funnel-shaped structure, and a flange is arranged on the outlet pipe. The external pipeline is convenient to butt joint, and the slurry with the sand and stone fine materials is led out for centralized treatment.
Claims (10)
1. The utility model provides an prevent stifled self-dewatering high frequency wet screening plant which characterized in that: including high frequency sieve (1), be equipped with feeder hopper (2), first screen cloth (5), second screen cloth (6), third screen cloth (7) on high frequency sieve (1), first screen cloth (5), second screen cloth (6), third screen cloth (7) are continuous from last to linking to each other in proper order down along the working face of same slope, and feeder hopper (2) are located first screen cloth (5) top, and feeder hopper (2) upper portion is equipped with shower (3), and the entry end of shower (3) has booster pump (4) through the pipe connection, and shower (3) set up to one side down.
2. The anti-clogging self-dewatering high-frequency wet screening device as claimed in claim 1, wherein: high frequency sieve (1) includes upper bracket (9), bottom suspension strut (8), be equipped with vibrating motor (12) on upper bracket (9), be equipped with a plurality of springs (11) between upper bracket (9) and bottom suspension strut (8), upper bracket (9) lower part is equipped with material collection portion (10), first screen cloth (5), second screen cloth (6), the vertical plane projection of third screen cloth (7) all is in within the scope of material collection portion (10), first screen cloth (5), second screen cloth (6), third screen cloth (7) both sides are connected with upper bracket (9).
3. The anti-blocking self-dewatering high-frequency wet screening device according to claim 2, characterized in that: an upper guide post (13) and a lower guide post (14) are respectively sleeved at two ends of the spring (11), the upper guide post (13) is fixed on the upper support frame (9), the lower guide post (14) is fixed on the lower support frame (8), and a gap is reserved between the upper guide post (13) and the lower guide post (14).
4. The anti-blocking self-dewatering high-frequency wet screening device according to claim 2, characterized in that: go up support frame (9) both sides inboard and be equipped with flange (15), flange (15) bottom is connected with first screen cloth (5), second screen cloth (6), third screen cloth (7), and the oblique lower end of flange (15) is equipped with the kink of buckling to the middle part, and the kink bottom is equipped with collecting plate (16), and collecting plate (16) link to each other with third screen cloth (7).
5. The anti-clogging self-dewatering high-frequency wet screening device as claimed in claim 4, wherein: the inclination angle of the collecting plate (16) is smaller than that of the third screen (7).
6. The anti-blocking self-dewatering high-frequency wet screening device according to claim 5, characterized in that: one end of the collecting plate (16) facing the third screen (7) is of a screen structure, one end of the collecting plate (16) far away from the third screen (7) is of a flat plate structure, and the vertical projection of the screen structure is located in the range of the material collecting part (10).
7. The anti-clogging self-dewatering high-frequency wet screening device as claimed in claim 1, wherein: the number of the spray pipes (3) is three, the inlet ends of the three spray pipes (3) are respectively connected with a main pipe (17), and the main pipe (17) is connected with the inlet of the booster pump (4).
8. The anti-blocking self-dewatering high-frequency wet screening device according to claim 7, characterized in that: and a flowmeter (18) is arranged on the main pipe (17).
9. The anti-clogging self-dewatering high-frequency wet screening device as claimed in claim 8, wherein: a flow dividing valve (19) is arranged between the flowmeter (18) and the booster pump (4), a flow dividing pipeline is arranged on the flow dividing valve (19), and the flow dividing pipeline is connected with an inlet pipeline of the booster pump (4).
10. The anti-clogging self-dewatering high-frequency wet screening device as claimed in claim 1, wherein: the material collecting part (10) is of a funnel-shaped structure, an outlet pipe is arranged at the lower end of the funnel-shaped structure, and a flange is arranged on the outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110134676.XA CN112791948A (en) | 2021-01-29 | 2021-01-29 | Anti-blocking self-dewatering high-frequency wet screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110134676.XA CN112791948A (en) | 2021-01-29 | 2021-01-29 | Anti-blocking self-dewatering high-frequency wet screening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112791948A true CN112791948A (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110134676.XA Pending CN112791948A (en) | 2021-01-29 | 2021-01-29 | Anti-blocking self-dewatering high-frequency wet screening device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112791948A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB781547A (en) * | 1955-10-21 | 1957-08-21 | Eugene Marie Burstlein | Improvements in processes for screening wet materials |
| CN1077370A (en) * | 1991-12-13 | 1993-10-20 | 庄臣及庄臣有限公司 | Method and apparatus for screening peat moss |
| CA2615587A1 (en) * | 2007-12-20 | 2009-06-20 | Krupp Canada Inc. | Process and apparatus to screen and prepare an oil sand slurry |
| CN203061422U (en) * | 2012-08-27 | 2013-07-17 | 广西科晟达机械制造有限公司 | Vibrating screen for mineral separation |
| CN107552380A (en) * | 2017-09-01 | 2018-01-09 | 杨李益 | The lossless skin seed separation cleaning machine of the full-automatic pepper film of electromechanical and separation method |
| CN209663732U (en) * | 2019-02-18 | 2019-11-22 | 陕西丰盛德远实业有限公司 | A kind of sand-gravel separation device |
| CN210230606U (en) * | 2019-06-14 | 2020-04-03 | 杨建龙 | Grit sieving mechanism is used in construction of highway |
| CN211563626U (en) * | 2019-12-12 | 2020-09-25 | 重庆安稳石粉有限责任公司 | High performance grit material screening system of processing |
| CN215587079U (en) * | 2021-01-29 | 2022-01-21 | 中国水利水电第九工程局有限公司 | Anti-blocking self-dewatering high-frequency wet screening device |
-
2021
- 2021-01-29 CN CN202110134676.XA patent/CN112791948A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB781547A (en) * | 1955-10-21 | 1957-08-21 | Eugene Marie Burstlein | Improvements in processes for screening wet materials |
| CN1077370A (en) * | 1991-12-13 | 1993-10-20 | 庄臣及庄臣有限公司 | Method and apparatus for screening peat moss |
| CA2615587A1 (en) * | 2007-12-20 | 2009-06-20 | Krupp Canada Inc. | Process and apparatus to screen and prepare an oil sand slurry |
| CN203061422U (en) * | 2012-08-27 | 2013-07-17 | 广西科晟达机械制造有限公司 | Vibrating screen for mineral separation |
| CN107552380A (en) * | 2017-09-01 | 2018-01-09 | 杨李益 | The lossless skin seed separation cleaning machine of the full-automatic pepper film of electromechanical and separation method |
| CN209663732U (en) * | 2019-02-18 | 2019-11-22 | 陕西丰盛德远实业有限公司 | A kind of sand-gravel separation device |
| CN210230606U (en) * | 2019-06-14 | 2020-04-03 | 杨建龙 | Grit sieving mechanism is used in construction of highway |
| CN211563626U (en) * | 2019-12-12 | 2020-09-25 | 重庆安稳石粉有限责任公司 | High performance grit material screening system of processing |
| CN215587079U (en) * | 2021-01-29 | 2022-01-21 | 中国水利水电第九工程局有限公司 | Anti-blocking self-dewatering high-frequency wet screening device |
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