Water-slag separation mechanism for coal seam gas extraction materials

Abstract

The utility model provides a water-slag separation mechanism for coal seam gas extraction materials, which comprises a water-slag separation shell and further comprises a filter structure arranged in the water-slag separation shell. And the scraping structure is arranged in the filtering structure. A filter screen cylinder rotates to drive a stirring rod and a second cleaning brush to rotate, so that coal cinder and pulverized coal are prevented from precipitating at the bottom and cannot be well discharged along with water, a filter screen cover can be synchronously cleaned, and the situation that the filtering effect is affected due to the fact that meshes of the filter screen cover are blocked is avoided; a water spraying head sprays out water, a cleaning brush I is matched, so that the filter screen cylinder is conveniently cleaned by virtue of filtered water, a rotating motor I rotates to drive a scraper blade to move, filtered coal slag and coal powder are pushed downwards, and the situation that wet coal slag and coal powder are adhered to the side wall of the filter screen cylinder and cannot be well discharged is conveniently and well avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal seam gas extraction, in particular to a water-slag separation mechanism for coal seam gas extraction materials. Background Art

[0002] Coalbed gas extraction involves drilling into coal seams and gas-concentrated areas, connecting the boreholes to dedicated pipelines, and using extraction equipment to extract gas from the coal seams and goaf to the surface for utilization or discharge. Its primary purpose is to reduce gas outbursts during mining, prevent gas overshoot and accumulation, and prevent gas explosions and coal-gas outburst accidents. Furthermore, gas extraction can transform harmful gas into beneficial resources, developing and utilizing it as a coal-associated resource. During coalbed gas extraction, it is often necessary to separate the water and slag present in the gas to prevent clogging of pipelines with coal slag, coal dust, and water, which could cause sudden increases in pipeline pressure and lead to accidents.

[0003] Among existing Chinese utility models, the announcement number CN211230426U discloses an underground gas, water, and slag three-phase separator, comprising a separation cylinder, a device base fixedly mounted on the bottom of the separation cylinder, an air inlet pipe connected to the top outer wall of the separation cylinder, an air pump fixedly mounted on the left side of the separation cylinder, the air inlet end of the air pump connected to a connecting air pipe, and a water pump fixedly mounted on the right side of the separation cylinder, the water inlet end of the water pump connected to a connecting water pipe. In this underground gas, water, and slag three-phase separator, a gas mixture enters the separation cylinder through the air inlet pipe, a filter screen filters the mixed gas, and coal slag and coal powder enter the slag collecting box through the first connecting groove and the second connecting groove under the action of gravity. Gas and water flow into the bottom of the separation cylinder, the air pump is started to extract gas through the connecting air pipe, and the water pump is started to extract water through the connecting water pipe, thereby completing the separation of gas, water, and slag.

[0004] Referring to the above-mentioned underground gas-water-slag three-phase separator, the gas extracted from the coal seam contains coal slag, coal powder, water, etc. The above-mentioned water-slag three-phase separator filters the coal slag, coal powder, etc. through a filter. However, due to the presence of water in the gas, the filtered coal slag, coal powder, etc. are usually somewhat moist and not particularly dry. Some moist coal slag, coal powder, etc. will stick to the filter and cannot be discharged downward well. At the same time, coal slag, coal powder, etc. will also clog the filter. Although a cleaning brush is provided in the above-mentioned water-slag three-phase separator for cleaning, the moist coal slag and coal powder will also stick to the cleaning brush, resulting in the cleaning brush being unable to clean the filter well. In addition, when filtering out the water in the gas, some fine coal powder will usually be adsorbed in the water. After these coal powders fall into the bottom of the separation cylinder together with the wastewater, they may settle at the bottom of the cylinder and cannot be discharged well with the water. Therefore, how to better clean the filter and prevent coal powder from settling at the bottom are important issues that need to be solved in the design of water-slag separation mechanisms for coal seam gas extraction. Utility Model Content

[0005] In order to solve the problems that the cleaning brush cannot clean the filter screen well and the coal powder precipitated at the bottom cannot be discharged well with water, the utility model provides a water-slag separation mechanism for coal seam gas extraction.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a water-slag separation mechanism for coal seam gas extraction, comprising a water-slag separation shell and:

[0008] A filtering structure, wherein the filtering structure is arranged in the water-slag separation shell;

[0009] a scraping structure, wherein the scraping structure is disposed in the filtering structure;

[0010] A cleaning structure, the cleaning structure being arranged below the filtering structure;

[0011] A cleaning and stirring structure, wherein the cleaning and stirring structure is arranged on the filtering structure, and the rotation of the filtering structure synchronously drives the cleaning and stirring structure to rotate;

[0012] The transmission structure is arranged on the filtering structure.

[0013] Preferably, four support rods are fixedly connected to the bottom side wall of the water-slag separation shell, an exhaust pipe is fixedly connected to the top side wall of the water-slag separation shell, a sewage pipe is fixedly connected to the back side wall of the water-slag separation shell, and two support ring blocks are fixedly connected to the inner side walls on both sides of the water-slag separation shell.

[0014] In this technical solution, the filtered gas can be discharged through the exhaust pipe above, and the sewage pipe can be used to discharge the sewage at the bottom of the water-slag separation shell.

[0015] Preferably, the filtering structure includes a fixed column, a rotating plate 1, an air inlet pipe and a rotating plate 2, the fixed column and the air inlet pipe are fixedly connected to the side walls on the left and right sides of the water-slag separation shell, the end of the fixed column is fixedly connected to the rotating plate 1, the end of the air inlet pipe is fixedly connected to the rotating plate 2, and the air inlet pipe on the rotating plate 2 is eccentrically arranged upward.

[0016] In this technical solution, the extracted gas can be passed into the filter cylinder through the air inlet pipe.

[0017] Preferably, the filtering structure includes a rotating frame, a fixed ring frame 1, a rotating tooth groove, a filter screen cylinder, a fixed ring frame 2, a connecting ring plate, a discharge pipe and a support plate 1, the rotating frame is rotatably connected to the side walls of the rotating plate 1 and the rotating plate 2 respectively, the outer wall of the rotating frame is fixedly connected with the fixed ring frame 2, the side wall of the fixed ring frame 2 is provided with a rotating tooth groove, two filter screen cylinders are fixedly connected to the side walls on the opposite sides of the rotating frame, the other ends of the two filter screen cylinders are fixedly connected to the fixed ring frame 2, the fixing ring frame 2 is rotatably connected to the connecting ring plate, two support plates 1 are fixedly connected between the connecting ring plate and the inner side wall of the water-slag separation shell, and the discharge pipe is fixedly connected to the bottom side wall of the connecting ring plate.

[0018] In this technical solution, the filter screen cartridge filters the coal slag, coal powder, etc. in the gas, and the gas and water pass through the filter screen cartridge, and the water falls to the bottom of the water-slag separation shell. The rotation of the fixed ring frame 1 can drive the filter screen cartridge to rotate, and the filter screen cartridge drives the fixed ring frame 2 to rotate, and the support plate pair supports the connecting ring plate.

[0019] Preferably, the second fixed ring frame is rotatably connected to the supporting ring block, the bottom of the discharge pipe is circular and narrows, and the bottom of the discharge pipe extends out of the bottom side wall of the water-slag separation shell.

[0020] Preferably, the scraping structure includes a transmission wheel, a rotating motor 1, a transmission belt, a protective cover, a scraper and a support plate 2. The support plate 2 is fixedly connected between the rotating plate 1 and the rotating plate 2. Four transmission wheels are rotatably connected between the support plate 2. A transmission belt is sleeved between each of the four transmission wheels. The rotating motor 1 and the protective cover are fixedly connected to the side wall of the support plate 2. The rotating end of the rotating motor 1 is fixedly connected to the transmission wheel. The protective cover is on the outside of the rotating motor 1. A scraper is fixedly connected to the side wall of the transmission belt. The side wall of the scraper fits against the inner wall of the bottom of the filter cylinder.

[0021] In this technical solution, the rotating motor drives the transmission wheel to rotate, and the rotation of the transmission wheel drives the transmission belt to move around the two transmission wheels. The movement of the transmission belt drives the scraper to move. The scraper passes through the side wall of the filter cylinder, and can push the coal slag and coal powder filtered from the side wall downward and discharge them into the discharge pipe, thereby preventing the wet coal slag and coal powder from sticking to the side wall of the filter cylinder and unable to be discharged well.

[0022] Preferably, the transmission structure includes a supporting ring plate and a transmission gear ring, the supporting ring plate is fixedly connected to the side wall of the second fixed ring frame, and the transmission gear ring is fixedly connected to the side wall of the supporting ring plate.

[0023] In this technical solution, the second fixed ring frame drives the supporting ring plate to rotate, and the supporting ring plate can drive the transmission gear ring to rotate.

[0024] Preferably, the cleaning structure includes a water pump, a filter screen cover, a water pipe, a water box, a cleaning brush, a support block and a water spray head. The water pump and the filter screen cover are fixedly connected to the bottom inner wall of the water-slag separation shell, the filter screen cover is covered on the outside of the water pump, the water pump is fixedly connected to the water pipe, the other end of the water pipe is fixedly connected to the water box, a cleaning brush and a water spray head are fixedly connected to the side wall of the water box, the side wall of the cleaning brush is attached to the side wall of the filter screen cylinder, the support plate is fixedly connected between the side wall of the water box and the water-slag separation shell, and the side walls on opposite sides of the filter screen cover are arranged to be an arc structure.

[0025] In this technical solution, a water pump collects water from the bottom of the water-slag separation shell, and the filter screen filters the water. The extracted water enters the water spray head through the water pipe and the water box. The water spray head sprays the water toward the filter screen cylinder. In conjunction with a cleaning brush, the filter screen cylinder is cleaned during its rotation to prevent coal slag, coal powder, etc. from being blocked in the mesh and affecting the gas filtration efficiency.

[0026] Preferably, the cleaning and stirring structure includes a stirring rod, a second cleaning brush, a rotating cylinder, a rotating gear ring and a fixed ring block, the fixed ring block is fixedly connected to the side wall of the discharge pipe, the fixed ring block and the side wall of the discharge pipe are rotatably connected to the rotating cylinder, the top side wall of the rotating cylinder is fixedly connected to the rotating gear ring, the rotating gear ring and the transmission gear ring are engaged with each other, the side walls on both sides of the rotating cylinder are fixedly connected with a stirring rod, the other end of the stirring rod is fixedly connected to the second cleaning brush, and the side wall of the second cleaning brush is attached to the side wall of the filter cover.

[0027] In this technical solution, the rotation of the transmission gear ring drives the rotating gear ring to rotate, the rotating gear ring drives the rotating drum to rotate, the rotating drum drives the stirring rod to rotate, and the stirring rod drives the second cleaning brush to rotate. The rotation of the stirring rod can stir the coal slag and coal powder in the water to prevent the coal slag and coal powder from settling at the bottom and being unable to be discharged with the water. The rotation of the second cleaning brush cleans the surface of the filter cover to prevent the mesh of the filter cover from being clogged and affecting the filtering effect.

[0028] Preferably, a rotating motor 2 is fixedly connected to the side walls on both sides of the water-slag separation shell, the rotating end of the rotating motor 2 is fixedly connected to the rotating gear, the rotating gear and the rotating gear groove are meshed with each other, and a fixed plate and two limit frames are fixedly connected to the inner side wall of the water-slag separation shell, and a sealing plate is slidably connected between the two limit frames, and the sealing plate is sealed at the end of the sewage pipe, and the top of the sealing plate is fixedly connected to a floating plate, and a spring is fixedly connected between the floating plate and the fixed plate.

[0029] In this technical solution, the rising water level at the bottom of the water-slag separation shell will drive the floating plate to float upward, the spring is compressed, and the floating plate drives the sealing plate to move upward, so that the sewage pipe automatically opens to discharge water.

[0030] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0031] The positive progress effect of this utility model is:

[0032] 1. The filter cylinder is driven to rotate by rotating the second rotation of the motor, and the filter cylinder drives the transmission gear ring to rotate. The rotation of the transmission gear ring drives the rotating gear ring to rotate. The rotating gear ring drives the stirring rod and the second cleaning brush to rotate. The rotation of the stirring rod can stir the coal slag and coal powder in the water. The second cleaning brush rotates to clean the surface of the filter cover, so as to better prevent the coal slag and coal powder from settling at the bottom and being unable to be discharged with the water. At the same time, the filter cover can be cleaned simultaneously to prevent the mesh of the filter cover from being clogged and affecting the filtering effect.

[0033] 2. The water at the bottom of the water-slag separation shell is collected by a water pump, and the filter screen filters the water. The pumped water enters the water spray head through the water pipe and the water box. The water spray head sprays the water toward the filter screen cylinder. Use a cleaning brush to clean the filter screen cylinder during its rotation, so that the filter screen cylinder can be cleaned with the help of the filtered water to avoid coal slag, coal powder, etc. from being blocked in the mesh and affecting the gas filtration efficiency.

[0034] 3. By rotating the motor, the transmission wheel is driven to rotate, and the transmission belt is driven to move around the two transmission wheels. The movement of the transmission belt drives the scraper to move. The scraper passes through the side wall of the filter cylinder, and can push the coal slag and coal powder filtered from the side wall downward and discharge them into the discharge pipe, so as to better prevent the wet coal slag and coal powder from sticking to the side wall of the filter cylinder and unable to be discharged well. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0036] Figure 2 It is a schematic diagram of the overall internal structure of the utility model.

[0037] Figure 3 It is a schematic diagram of the internal structure of the utility model as a whole from the side.

[0038] Figure 4 This is a schematic diagram of the internal structure of the utility model as a whole from a top view.

[0039] Figure 5 This is the three-dimensional structural intention of the filtering structure of this utility model.

[0040] Figure 6 This is a schematic diagram of the three-dimensional structure of the cleaning and stirring structure of the utility model.

[0041] Description of Reference Numerals

[0042] 1. Water-slag separation shell; 2. Support rod; 3. Exhaust pipe; 4. Filter structure; 401. Rotating frame; 402. Fixed ring frame 1; 403. Rotating tooth groove; 404. Filter screen cylinder; 405. Fixed ring frame 2; 406. Connecting ring plate; 407. Discharge pipe; 408. Support plate 1; 411. Fixed column; 412. Rotating plate 1; 413. Inlet pipe; 414. Rotating plate 2; 5. Support ring block; 6. Cleaning structure; 601. Water pump; 602. Filter screen cover; 603. Water pipe; 604. Water box; 605. Cleaning brush 1; 606. Support block; 607. Water spray head; 7. Cleaning and stirring structure; 701. Stirring rod; 702. Cleaning brush 2; 703. Rotating cylinder; 704. Rotating gear ring; 705. Fixed ring block; 8. Transmission structure; 801. Support ring plate; 802. Transmission gear ring; 9. Scraping structure; 901. Transmission wheel; 902. Rotating motor 1; 903. Transmission belt; 904. Protective cover; 905. Scraper; 906. Support plate 2; 10. Rotating motor 2; 11. Rotating gear; 12. Drain pipe; 13. Fixed plate; 14. Spring; 15. Floating plate; 16. Sealing plate; 17. Limiting frame. DETAILED DESCRIPTION

[0043] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0044] like Figure 1-6 As shown, the water-slag separation mechanism for coal seam gas extraction includes a water-slag separation shell 1 and further includes:

[0045] A filtering structure 4 is provided in the water-slag separation housing 1;

[0046] a scraping structure 9, wherein the scraping structure 9 is disposed in the filtering structure 4;

[0047] A cleaning structure 6 is provided below the filtering structure 4;

[0048] A cleaning and stirring structure 7 is provided on the filtering structure 4, and the rotation of the filtering structure 4 synchronously drives the cleaning and stirring structure 7 to rotate;

[0049] The transmission structure 8 is arranged on the filtering structure 4 .

[0050] Four support rods 2 are fixedly connected to the bottom side wall of the water-slag separation shell 1, an exhaust pipe 3 is fixedly connected to the top side wall of the water-slag separation shell 1, a sewage pipe 12 is fixedly connected to the back side wall of the water-slag separation shell 1, and two support ring blocks 5 are fixedly connected to the inner side walls on both sides of the water-slag separation shell 1.

[0051] The filtered gas can be discharged through the exhaust pipe 3 above, and the sewage pipe 12 can be used to discharge the sewage at the bottom of the water-slag separation shell 1.

[0052] The filtering structure 4 includes a fixed column 411, a rotating plate 1 412, an air inlet pipe 413 and a rotating plate 2 414. The fixed column 411 and the air inlet pipe 413 are fixedly connected to the side walls on the left and right sides of the water-slag separation shell 1. The end of the fixed column 411 is fixedly connected to the rotating plate 1 412, and the end of the air inlet pipe 413 is fixedly connected to the rotating plate 2 414. The air inlet pipe 413 on the rotating plate 2 414 is eccentrically arranged upward.

[0053] The extracted gas can be passed into the filter cylinder 404 through the air inlet pipe 413.

[0054] The filtering structure 4 includes a rotating frame 401, a fixed ring frame 1 402, a rotating tooth groove 403, a filter screen cartridge 404, a fixed ring frame 2 405, a connecting ring plate 406, a discharge pipe 407 and a support plate 1 408. The rotating frame 401 is rotatably connected to the side walls of the rotating plate 1 412 and the rotating plate 2 414 respectively. The outer wall of the rotating frame 401 is fixedly connected to the fixed ring frame 2 405, and the side wall of the fixed ring frame 2 405 is provided with a rotating tooth groove 403. Two filter screen cartridges 404 are fixedly connected to the side walls on opposite sides of the rotating frame 401. The other ends of the two filter screen cartridges 404 are fixedly connected to the fixed ring frame 2 405. The fixed ring frame 2 405 is rotatably connected to the connecting ring plate 406. Two support plates 1 408 are fixedly connected between the connecting ring plate 406 and the inner side wall of the water-slag separation shell 1. The discharge pipe 407 is fixedly connected to the bottom side wall of the connecting ring plate 406.

[0055] The filter screen cartridge 404 filters the coal slag, coal powder, etc. in the gas, and the gas and water pass through the filter screen cartridge 404, and the water falls to the bottom of the water-slag separation shell 1. The rotation of the fixed ring frame 1 402 can drive the filter screen cartridge 404 to rotate, and the filter screen cartridge 404 drives the fixed ring frame 2 405 to rotate, and the support plate 1 408 supports the connecting ring plate 406.

[0056] The second fixed ring frame 405 is rotatably connected to the supporting ring block 5 , and the bottom of the discharge pipe 407 is circular and narrowed, and the bottom of the discharge pipe 407 extends out of the bottom side wall of the water-slag separation shell 1 .

[0057] The scraping structure 9 includes a transmission wheel 901, a rotating motor 902, a transmission belt 903, a protective cover 904, a scraper 905 and a support plate 2 906. The support plate 2 906 is fixedly connected between the rotating plate 1 412 and the rotating plate 2 414. The four transmission wheels 901 are rotatably connected between the support plate 2 906. The four transmission wheels 901 are sleeved with a transmission belt 903 in pairs. The rotating motor 1 902 and the protective cover 904 are fixedly connected to the side wall of the support plate 2 906. The rotating end of the rotating motor 1 902 is fixedly connected to the transmission wheel 901. The protective cover 904 covers the outside of the rotating motor 1 902. The side wall of the transmission belt 903 is fixedly connected to the scraper 905. The side wall of the scraper 905 is attached to the bottom inner wall of the filter cylinder 404.

[0058] The rotating motor 902 rotates to drive the transmission wheel 901, and the rotation of the transmission wheel 901 drives the transmission belt 903 to move around the two transmission wheels 901. The movement of the transmission belt 903 drives the scraper 905 to move. The scraper 905 passes through the side wall of the filter cylinder 404, and can push the coal slag and coal powder filtered from the side wall downward and enter the discharge pipe 407 for discharge, so as to prevent the wet coal slag and coal powder from sticking to the side wall of the filter cylinder 404 and unable to be discharged well.

[0059] The transmission structure 8 includes a support ring plate 801 and a transmission gear ring 802 . The support ring plate 801 is fixedly connected to the side wall of the second fixed ring frame 405 . The transmission gear ring 802 is fixedly connected to the side wall of the support ring plate 801 .

[0060] The second fixed ring frame 405 drives the supporting ring plate 801 to rotate, and the supporting ring plate 801 can drive the transmission gear ring 802 to rotate.

[0061] The cleaning structure 6 includes a water pump 601, a filter screen cover 602, a water pipe 603, a water box 604, a cleaning brush 605, a support block 606 and a water spray head 607. The water pump 601 and the filter screen cover 602 are fixedly connected to the bottom inner wall of the water-slag separation shell 1. The filter screen cover 602 covers the outside of the water pump 601. The water pump 601 is fixedly connected to the water pipe 603. The other end of the water pipe 603 is fixedly connected to the water box 604. A cleaning brush 605 and a water spray head 607 are fixedly connected to the side wall of the water box 604. The side wall of the cleaning brush 605 is attached to the side wall of the filter screen cylinder 404. The support plate is fixedly connected between the water box 604 and the side wall of the water-slag separation shell 1. The side walls of the filter screen cover 602 on opposite sides are arranged into an arc structure.

[0062] The water pump 601 collects water from the bottom of the water-slag separation shell 1, and the filter screen cover 602 filters the water. The extracted water enters the water spray head 607 through the water pipe 603 and the water box 604. The water spray head 607 sprays the water toward the filter screen cylinder 404. In conjunction with the cleaning brush 605, the filter screen cylinder 404 is cleaned during its rotation to prevent coal slag, coal powder, etc. from being blocked in the mesh and affecting the gas filtration efficiency.

[0063] The cleaning and stirring structure 7 includes a stirring rod 701, a cleaning brush 2 702, a rotating cylinder 703, a rotating gear ring 704 and a fixed ring block 705. The fixed ring block 705 is fixedly connected to the side wall of the discharge pipe 407. The fixed ring block 705 and the side wall of the discharge pipe 407 are rotatably connected to the rotating cylinder 703. The top side wall of the rotating cylinder 703 is fixedly connected to the rotating gear ring 704. The rotating gear ring 704 is engaged with the transmission gear ring 802. The side walls on both sides of the rotating cylinder 703 are fixedly connected with stirring rods 701. The other end of the stirring rod 701 is fixedly connected to the cleaning brush 2 702. The side wall of the cleaning brush 2 702 is attached to the side wall of the filter cover 602.

[0064] The rotation of the transmission gear ring 802 drives the rotating gear ring 704 to rotate, the rotating gear ring 704 drives the rotating drum 703 to rotate, the rotating drum drives the stirring rod 701 to rotate, and the stirring rod 701 drives the cleaning brush 2 702 to rotate. The rotation of the stirring rod 701 can stir the coal slag and coal powder in the water to prevent the coal slag and coal powder from settling at the bottom and being unable to be discharged with the water. The rotation of the cleaning brush 2 702 cleans the surface of the filter cover 602 to prevent the mesh of the filter cover 602 from being clogged and affecting the filtering effect.

[0065] A rotating motor 2 10 is fixedly connected to the side walls on both sides of the water-slag separation shell 1, and the rotating end of the rotating motor 2 10 is fixedly connected to the rotating gear 11. The rotating gear 11 and the rotating tooth groove 403 are engaged with each other. A fixed plate 13 and two limit frames 17 are fixedly connected to the inner side wall of the water-slag separation shell 1, and a sealing plate 16 is slidably connected between the two limit frames 17. The sealing plate 16 is sealed at the end of the sewage pipe 12, and the top of the sealing plate 16 is fixedly connected to a floating plate 15. A spring 14 is fixedly connected between the floating plate 15 and the fixed plate 13.

[0066] The rising water level at the bottom of the water-slag separation shell 1 will drive the floating plate 15 to float upward, the spring 14 is compressed, and the floating plate 15 drives the blocking plate 16 to move upward, so that the sewage pipe 12 is automatically opened to discharge water.

[0067] When the utility model is in use, the electrical components mentioned in the application are all connected to an external power supply and a control switch. The extracted gas is passed through the air inlet pipe 413 into the filter cylinder 404. The filter cylinder 404 filters the coal slag, coal powder, etc. in the gas. The gas and water pass through the filter cylinder 404, and the water falls to the bottom of the water-slag separation shell 1. Since the gas is insoluble in water, the filtered gas can be discharged through the exhaust pipe 3 above.

[0068] The rotating motor 10 rotates and drives the rotating gear 11 to rotate. The rotating gear 11 drives the rotating gear 11 to rotate in the rotating tooth groove 403 and drives the fixed ring frame 1 402 to rotate. The fixed ring frame 1 402 drives the filter cylinder 404 to rotate. The filter cylinder 404 drives the fixed ring frame 2 405 to rotate. The fixed ring frame 2 405 drives the support ring plate 801 to rotate. The support ring plate 801 drives the transmission gear ring 802 to rotate. The water pump 601 collects water at the bottom of the water-slag separation shell 1. The filter screen cover 602 filters the water. The extracted water enters the water spray head 607 through the water pipe 603 and the water box 604. The water spray head 607 sprays the water toward the filter cylinder 404. In conjunction with the cleaning brush 1 605, the filter cylinder 404 is cleaned during its rotation to prevent coal slag, coal powder, etc. from being blocked in the mesh and affecting the gas filtration efficiency.

[0069] The rotation of the transmission gear ring 802 drives the rotating gear ring 704 to rotate, the rotating gear ring 704 drives the rotating drum 703 to rotate, the rotating drum drives the stirring rod 701 to rotate, the stirring rod 701 drives the second cleaning brush 702 to rotate, the stirring rod 701 rotates to stir the coal slag and coal powder in the water to prevent the coal slag and coal powder from settling at the bottom and being unable to be discharged with the water, and the second cleaning brush 702 rotates to clean the surface of the filter cover 602 to prevent the mesh of the filter cover 602 from being clogged and affecting the filtering effect;

[0070] As time goes by, the water level at the bottom of the water-slag separation shell 1 rises. The rising water level will drive the float plate 15 to float upward, the spring 14 is compressed, and the float plate 15 drives the sealing plate 16 to move upward, so that the sewage pipe 12 automatically opens to discharge water. The rotating motor 902 rotates to drive the transmission wheel 901 to rotate, and the transmission wheel 901 rotates to drive the transmission belt 903 to move around the two transmission wheels 901. The movement of the transmission belt 903 drives the scraper 905 to move. The scraper 905 passes through the side wall of the filter cylinder 404 and can push the coal slag and coal powder filtered on the side wall downward and enter the discharge pipe 407 for discharge, so as to prevent the wet coal slag and coal powder from sticking to the side wall of the filter cylinder 404 and unable to be discharged well.

[0071] The present invention is not limited to the above-described embodiments. Any changes in shape or structure fall within the scope of protection of the present invention. The scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications shall fall within the scope of protection of the present invention.

Claims

1. A water-slag separation mechanism for coal seam gas extraction, comprising a water-slag separation shell (1), characterized in that: Also includes: A filtering structure (4), wherein the filtering structure (4) is arranged in the water-slag separation shell (1); a scraping structure (9), wherein the scraping structure (9) is arranged in the filtering structure (4); a cleaning structure (6), the cleaning structure (6) being arranged below the filtering structure (4); A cleaning and stirring structure (7), wherein the cleaning and stirring structure (7) is arranged on the filtering structure (4), and the rotation of the filtering structure (4) synchronously drives the cleaning and stirring structure (7) to rotate; A transmission structure (8), wherein the transmission structure (8) is arranged on the filtering structure (4).

2. The water-slag separation mechanism for coal seam gas extraction according to claim 1, characterized in that: Four support rods (2) are fixedly connected to the bottom side wall of the water-slag separation shell (1), an exhaust pipe (3) is fixedly connected to the top side wall of the water-slag separation shell (1), a sewage pipe (12) is fixedly connected to the back side wall of the water-slag separation shell (1), and two support ring blocks (5) are fixedly connected to the inner side walls on both sides of the water-slag separation shell (1).

3. The water-slag separation mechanism for coal seam gas extraction according to claim 1, characterized in that: The filtering structure (4) comprises a fixed column (411), a rotating plate 1 (412), an air inlet pipe (413) and a rotating plate 2 (414); the fixed column (411) and the air inlet pipe (413) are fixedly connected to the left and right side walls of the water-slag separation shell (1); the end of the fixed column (411) is fixedly connected to the rotating plate 1 (412); the end of the air inlet pipe (413) is fixedly connected to the rotating plate 2 (414); and the air inlet pipe (413) on the rotating plate 2 (414) is eccentrically arranged upward.

4. The water-slag separation mechanism for coal seam gas extraction according to claim 3, characterized in that: The filtering structure (4) comprises a rotating frame (401), a fixed ring frame 1 (402), a rotating tooth groove (403), a filter screen cylinder (404), a fixed ring frame 2 (405), a connecting ring plate (406), a discharge pipe (407) and a supporting plate 1 (408). The rotating frame (401) is rotatably connected to the side walls of the rotating plate 1 (412) and the rotating plate 2 (414), respectively. The outer side wall of the rotating frame (401) is fixedly connected to the fixed ring frame 2 (405). The side wall of the fixed ring frame 2 (405) is opened. A rotating tooth groove (403) is provided, and two filter screen cylinders (404) are fixedly connected to the side walls on opposite sides of the rotating frame (401), and the other ends of the two filter screen cylinders (404) are fixedly connected to the second fixed ring frame (405), and the second fixed ring frame (405) is rotatably connected to a connecting ring plate (406), and two supporting plates (408) are fixedly connected between the connecting ring plate (406) and the inner side wall of the water-slag separation shell (1), and a discharge pipe (407) is fixedly connected to the bottom side wall of the connecting ring plate (406).

5. The water-slag separation mechanism for coal seam gas extraction according to claim 4, characterized in that: The second fixed ring frame (405) is rotatably connected to the supporting ring block (5), and the bottom of the discharge pipe (407) is circular and narrowed, and the bottom of the discharge pipe (407) extends out of the bottom side wall of the water-slag separation shell (1).

6. The water-slag separation mechanism for coal seam gas extraction according to claim 1, characterized in that: The scraping structure (9) includes a transmission wheel (901), a rotating motor (902), a transmission belt (903), a protective cover (904), a scraper (905) and a second support plate (906). The second support plate (906) is fixedly connected between the first rotating plate (412) and the second rotating plate (414). The second support plate (906) is rotatably connected to four transmission wheels (901). The four transmission wheels (901) are sleeved with a transmission belt (903) between each other. 03), the rotating motor 1 (902) and the protective cover (904) are fixedly connected to the side wall of the support plate 2 (906), the rotating end of the rotating motor 1 (902) is fixedly connected to the transmission wheel (901), the protective cover (904) covers the outside of the rotating motor 1 (902), and the side wall of the transmission belt (903) is fixedly connected with a scraper (905), and the side wall of the scraper (905) is attached to the bottom inner wall of the filter screen cylinder (404).

7. The water-slag separation mechanism for coal seam gas extraction according to claim 1, characterized in that: The transmission structure (8) comprises a supporting ring plate (801) and a transmission gear ring (802), wherein the supporting ring plate (801) is fixedly connected to the side wall of the second fixed ring frame (405), and the transmission gear ring (802) is fixedly connected to the side wall of the supporting ring plate (801).

8. The water-slag separation mechanism for coal seam gas extraction according to claim 1, characterized in that: The cleaning structure (6) comprises a water pump (601), a filter screen cover (602), a water pipe (603), a water box (604), a cleaning brush (605), a support block (606) and a water spray head (607). The water pump (601) and the filter screen cover (602) are both fixedly connected to the bottom inner wall of the water-slag separation shell (1). The filter screen cover (602) covers the outside of the water pump (601). The water pump (601) is fixedly connected to the water pipe. (603), the other end of the water pipe (603) is fixedly connected to the water box (604), and a cleaning brush (605) and a water spray head (607) are fixedly connected to the side wall of the water box (604), the side wall of the cleaning brush (605) is attached to the side wall of the filter screen cylinder (404), and the support plate is fixedly connected between the water box (604) and the side wall of the water-slag separation shell (1), and the side walls on the opposite sides of the filter screen cover (602) are arranged to be an arc-shaped structure.

9. The water-slag separation mechanism for coal seam gas extraction according to claim 1, characterized in that: The cleaning and stirring structure (7) comprises a stirring rod (701), a second cleaning brush (702), a rotating cylinder (703), a rotating gear ring (704) and a fixed ring block (705); the fixed ring block (705) is fixedly connected to the side wall of the discharge pipe (407); the fixed ring block (705) and the side wall of the discharge pipe (407) are rotatably connected to the rotating cylinder (703); the top side wall of the rotating cylinder (703) is fixedly connected to the rotating gear ring (704); the rotating gear ring (704) and the transmission gear ring (802) are engaged with each other; the side walls on both sides of the rotating cylinder (703) are fixedly connected with stirring rods (701); the other end of the stirring rod (701) is fixedly connected to the second cleaning brush (702); the side wall of the second cleaning brush (702) is affixed to the side wall of the filter screen cover (602).

10. The water-slag separation mechanism for coal seam gas extraction according to claim 1, characterized in that: A second rotating motor (10) is fixedly connected to the side walls on both sides of the water-slag separation shell (1), and the rotating end of the second rotating motor (10) is fixedly connected to a rotating gear (11). The rotating gear (11) and the rotating tooth groove (403) are meshed with each other. A fixed plate (13) and two limiting frames (17) are fixedly connected to the inner side wall of the water-slag separation shell (1), and a sealing plate (16) is slidably connected between the two limiting frames (17). The sealing plate (16) is sealed at the end of the sewage pipe (12). The top of the sealing plate (16) is fixedly connected to a floating plate (15), and a spring (14) is fixedly connected between the floating plate (15) and the fixed plate (13).

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