Preparation device and method of coal gangue soil conditioner

Abstract

This invention discloses an apparatus and method for preparing a coal gangue soil conditioner, specifically relating to the field of soil conditioner preparation technology. The apparatus includes a top drying tank and a bottom drying tank located at the bottom of the top drying tank. A preparation component for preparing the coal gangue soil conditioner is provided between the top and bottom drying tanks. The preparation component includes a filter plate installed inside the bottom drying tank, with a support column at the bottom of the filter plate. This invention uses a blower to deliver gas through a connecting pipe, a telescopic pipe, and an inlet pipe to the interior of a hollow ring. The gas is then delivered to the hollow plate and the bottom drying tank via an inlet hole, a through hole, and a support groove. The gas inside the hollow plate is then ejected downwards through air holes, which disperses debris adhering to the filter plate, preventing clogging and affecting the grinding effect. The gas delivered to the bottom drying tank disperses debris accumulated at the bottom of the tank, preventing debris buildup and insufficient mixing.

Description

Technical Field

[0001] This invention relates to the field of soil conditioner preparation technology, and more specifically to an apparatus and method for preparing a coal gangue soil conditioner. Background Technology

[0002] With the rapid development of society and economy and the continuous exploitation of mineral resources, land resources and vegetation in mining areas have been severely damaged, resulting in numerous adverse effects such as soil erosion, landslides, and debris flows. In addition, the soil in abandoned mining areas is barren and has a high content of heavy metal elements, which seriously restricts the growth and development of plants. As an important part of the ecosystem, plant communities and soil are the foundation for the ecological restoration of abandoned mining areas. Therefore, it is of great significance to develop soil conditioners that improve the physical and chemical properties of barren soil in mining areas.

[0003] The preparation of coal gangue soil conditioner is mainly aimed at solving land resource problems. It often requires the use of corresponding preparation equipment for processing, as shown in the prior art disclosed in CN118105885A. Although this prior art uses a grinding rack and filter plate to grind coal gangue, and a mixing rack to mix coal gangue particles, high-molecular water-absorbing and water-retaining particles and potassium humate, it can achieve convenient one-stop processing of mining area soil conditioner, save manual operation steps, and improve the efficiency of mining area soil conditioner preparation. However, in this prior art, the coal gangue and other raw materials are concentrated at the bottom of the drying cylinder, which means that the coal gangue and raw materials cannot be fully ground and mixed, thus affecting the processing effect.

[0004] In addition, the above technical solutions can only clean one side of the filter plate and cannot effectively prevent the filter plate from clogging, which will also affect the filtration effect of the filter plate. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, the present invention provides an apparatus and method for preparing a coal gangue soil conditioner. A blower delivers gas through a connecting pipe, a telescopic pipe, and an air inlet pipe into the interior of a hollow ring. The gas is then delivered through an air inlet, a through-hole, and a support groove to the interiors of a hollow plate and a drying bottom tank, respectively. The gas inside the hollow plate is then ejected downwards through air holes, thereby dispersing debris adhering to the filter plate and preventing filter plate blockage that could affect the grinding effect. The gas delivered to the drying bottom tank disperses debris accumulated at the bottom of the drying bottom tank, preventing debris buildup and insufficient mixing, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a preparation device for coal gangue soil conditioner, comprising a drying top tank and a drying bottom tank disposed at the bottom of the drying top tank, wherein a preparation component for preparing coal gangue soil conditioner is provided between the drying top tank and the drying bottom tank; The preparation assembly includes a filter plate installed inside the drying bottom tank. The bottom of the filter plate is provided with a support column. The top of the support column passes through the filter plate and the drying top tank in sequence and extends to the outside of the top of the drying top tank. A support groove is opened at the bottom of the support column. The filter plate has a hollow plate sleeved on the outside of the support column at the top. Multiple grinding plates are installed at the bottom of the hollow plate, and multiple air holes are opened at the bottom of the hollow plate between two adjacent grinding plates. Multiple through holes connected to the support groove are opened on the outside of one end of the support column corresponding to the hollow plate. Multiple stirring blades are installed on both sides of the support column at the bottom of the filter plate. A hollow ring is movably fitted onto the top of the support column via a bearing. Multiple air inlets connected to the support groove are opened on the outer side of one end of the support column corresponding to the hollow ring. An air inlet pipe is fixedly connected to the rear end of the hollow ring. An air duct installed on the rear side of the drying top tank is provided at the bottom of the end of the air inlet pipe away from the hollow ring. An exhaust fan is installed inside the air duct. A connecting pipe is fixedly connected to the top of the front end of the air duct, and a telescopic pipe for connecting the air inlet pipe is fixedly connected to the top of the connecting pipe.

[0007] In a preferred embodiment, a support member is provided at the top of the support column, and the top of the support column is movably connected to the support member through a bearing. Electric push rods for connecting to the top of the drying tank are installed at the bottom of both ends of the support member. A servo motor is installed at the top of the support member, and the output shaft of the servo motor passes through the support member and is fixed together with the top of the support column.

[0008] In a preferred embodiment, a support ring is provided between the top drying tank and the bottom drying tank. A movable ring is fitted outside the support ring, and the top and bottom ends of the movable ring are respectively movably fitted outside the adjacent ends of the top drying tank and the bottom drying tank via bearings. A driven gear is fitted outside the movable ring, and a main gear is meshed at one end of the driven gear. A funnel-shaped movable component is installed inside the support ring. The movable component is located at the top of the bottom drying tank, and multiple spaced-apart diverter components are installed inside the top end of the movable component.

[0009] In a preferred embodiment, mounting rings are fitted around the outer sides of the adjacent ends of the top drying tank and the bottom drying tank, and multiple spaced mounting posts are installed between the two mounting rings; a motor is installed at the bottom of the mounting ring located outside the top drying tank, the position of the motor corresponds vertically to that of the main gear, and the output shaft of the motor is fixed together with the main gear.

[0010] In a preferred embodiment, the top of the drying top tank is fixedly connected to a feed pipe located in front of the support column, the bottom of the drying bottom tank is fixedly connected to a discharge pipe, and the front of the top of the drying bottom tank is fixedly connected to a material pipe.

[0011] In a preferred embodiment, a pressure relief valve is installed at the bottom of the drying top tank.

[0012] In a preferred embodiment, the bottom of the drying tank is fitted with support legs.

[0013] In a preferred embodiment, a dustproof net is installed inside the rear end of the duct.

[0014] The method for preparing coal gangue soil conditioner using the above-mentioned coal gangue soil conditioner preparation device is as follows: Step 1: The workers transport the coal gangue into the drying top tank through the feed pipe. The electric push rod drives the support column connected to the support component to move up and down, so that the hollow plate on the support column repeatedly separates from or contacts the filter plate, so as to provide space for the coal gangue to fall between the hollow plate and the filter plate for grinding. While the support column moves the hollow plate up and down, the servo motor drives the hollow plate on the support column to rotate, so that the grinding plate on the hollow plate can cooperate with the filter plate to grind and filter the coal gangue. The qualified coal gangue falls into the drying bottom tank and is stirred and mixed by the stirring blades on the support column. Step Two: Simultaneously, the staff starts the exhaust fan, which delivers gas through the connecting pipe, telescopic pipe, and air inlet pipe into the hollow ring. The gas inside the hollow ring is then delivered to the support groove through the air inlet. The gas in the support groove is then delivered to the hollow plate through the through hole, and then sprayed downward through the air hole. This can disperse the debris adhering to the filter plate, preventing the filter plate from clogging and affecting the grinding effect. The remaining gas is then discharged through the support groove, dispersing the debris accumulated at the bottom of the drying tank, preventing the debris from accumulating at the bottom of the drying tank and not being fully mixed. Step 3: While grinding, the staff starts the motor to drive the main gear to rotate. The main gear drives the moving ring to rotate through the meshing driven gear. The moving ring then drives the moving parts connected to the support ring and the flow divider on it to rotate. This can drive the coal gangue accumulated on the outside of the filter plate to move, so that the coal gangue is more evenly distributed, thereby improving the grinding efficiency and preventing the coal gangue from accumulating in one place and affecting the grinding effect and grinding efficiency. Step 4: The material handling unit transports the mixed raw materials to the drying bottom tank to mix with the coal gangue. The stirring blades, which move up and down with the support column, and the gas discharged through the support trough further mix the coal gangue and raw materials.

[0015] The technical effects and advantages of this invention are as follows: The gas is delivered to the hollow ring through the connecting pipe, telescopic pipe and air inlet pipe by the exhaust fan. Then it is delivered to the hollow plate and the drying bottom tank through the air inlet hole, through hole and support groove respectively. The gas in the hollow plate is then sprayed downward through the air hole, which can blow away the debris adhering to the filter plate and avoid the filter plate clogging and affecting the grinding effect. The gas delivered to the drying bottom tank can blow away the debris accumulated at the bottom of the drying bottom tank and prevent the debris from accumulating at the bottom of the drying bottom tank and not being fully mixed. The motor drives the main gear to rotate, which in turn drives the movable ring to rotate through the meshing driven gear. The movable ring then drives the movable parts connected to the support ring and the flow dividers on them to rotate. This can drive the coal gangue accumulated on the outside of the filter plate to move, making the coal gangue more evenly distributed, thereby improving the grinding efficiency and preventing the coal gangue from accumulating in one place and affecting the grinding effect and efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a rear view of the drying top tank of the present invention; Figure 3 This is a side sectional view of the drying top tank of the present invention; Figure 4 This is a front view of the hollow plate of the present invention; Figure 5 This is a side sectional view of the hollow plate of the present invention; Figure 6 This is a front view of the hollow ring of the present invention; Figure 7 This is a side sectional view of the movable part of the present invention.

[0017] The attached diagram is labeled as follows: 1. Drying top tank; 2. Drying bottom tank; 3. Filter plate; 4. Support column; 5. Support groove; 6. Hollow plate; 7. Grinding plate; 8. Air hole; 9. Through hole; 10. Stirring blade; 11. Hollow ring; 12. Air inlet; 13. Air inlet pipe; 14. Air duct; 15. Exhaust fan; 16. Connecting pipe; 17. Telescopic pipe; 18. Support component; 19. Electric push rod; 20. Servo motor; 21. Support ring; 22. Movable ring; 23. Driven gear; 24. Main gear; 25. Movable component; 26. Diverter component; 27. Mounting ring; 28. Mounting column; 29. ​​Motor; 30. Feed pipe; 31. Discharge pipe; 32. Material pipe; 33. Pressure relief valve; 34. Support leg; 35. Dustproof net. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Refer to the instruction manual appendix Figure 1-7 The present invention provides a preparation device for coal gangue soil conditioner, including a drying top tank 1 and a drying bottom tank 2 disposed at the bottom of the drying top tank 1, wherein a preparation component for preparing coal gangue soil conditioner is provided between the drying top tank 1 and the drying bottom tank 2. like Figure 1-6 As shown, the preparation assembly includes a filter plate 3 installed inside the drying bottom tank 2. A support column 4 is provided at the bottom of the filter plate 3. The top of the support column 4 passes through the filter plate 3 and the drying top tank 1 sequentially and extends to the outside of the top of the drying top tank 1. A support groove 5 is provided at the bottom of the support column 4. A hollow plate 6 is provided at the top of the filter plate 3, fitted outside the support column 4. Multiple spaced grinding plates 7 are installed at the bottom of the hollow plate 6, and multiple air holes 8 are provided between adjacent grinding plates 7 at the bottom of the hollow plate 6. Multiple through holes 9 communicating with the support groove 5 are provided at one end of the support column 4 corresponding to the outer side of the hollow plate 6. The unit is provided with multiple stirring blades 10 respectively installed on both sides of the support column 4; a hollow ring 11 is movably sleeved on the top of the support column 4 through a bearing, and multiple air inlet holes 12 connected to the support groove 5 are opened on the outer side of the support column 4 corresponding to the hollow ring 11. An air inlet pipe 13 is fixedly connected to the rear end of the hollow ring 11, and an air duct 14 installed on the rear side of the drying top tank 1 is provided at the bottom of the end of the air inlet pipe 13 away from the hollow ring 11. An exhaust fan 15 is installed inside the air duct 14, and a connecting pipe 16 is fixedly connected to the top of the front end of the air duct 14, and a telescopic pipe 17 for connecting the air inlet pipe 13 is fixedly connected to the top of the connecting pipe 16.

[0020] like Figure 1-4 As shown, the top of the support column 4 is provided with a support member 18. The top of the support column 4 is movably connected to the support member 18 through a bearing. Both ends of the support member 18 are equipped with electric push rods 19 for connecting to the top of the drying tank 1. A servo motor 20 is installed on the top of the support member 18. The output shaft of the servo motor 20 passes through the support member 18 and is fixed to the top of the support column 4. The electric push rods 19 drive the support column 4 connected to the support member 18 to move up and down, thereby adjusting the hollow plate 6 up and down so that the coal gangue can fall between the hollow plate 6 and the filter plate 3. The servo motor 20 can drive the support column 4 to rotate while it is moving up and down. At the same time, the support column 4 drives the grinding plate 7 on the hollow plate 6 to grind the coal gangue.

[0021] like Figure 1 , 2 As shown in Figures 3 and 7, a support ring 21 is provided between the top drying tank 1 and the bottom drying tank 2. A movable ring 22 is sleeved on the outside of the support ring 21, and the top and bottom ends of the movable ring 22 are respectively movably sleeved on the outside of the adjacent ends of the top drying tank 1 and the bottom drying tank 2 via bearings. A driven gear 23 is sleeved on the outside of the movable ring 22, and a main gear 24 is meshed at one end of the driven gear 23. A funnel-shaped movable component 25 is installed inside the support ring 21. The movable component 25 is located on the top of the bottom drying tank 2. Multiple spaced-apart diverters 26 are installed inside the top of the movable component 25. The main gear 24 drives the driven gear 23 to rotate, and the driven gear 23 drives the support ring 21 connected to the movable ring 22 to rotate. The support ring 21 then drives the movable component 25 and the multiple diverters 26 on it to rotate, thereby driving the movement of coal gangue and distributing the coal gangue evenly inside the top drying tank 1, avoiding the accumulation of coal gangue and affecting the grinding efficiency.

[0022] like Figure 1 and 2 As shown, mounting rings 27 are fitted around the outer sides of the adjacent ends of the top drying tank 1 and the bottom drying tank 2. Multiple spaced mounting posts 28 are installed between the two mounting rings 27. A motor 29 is installed at the bottom of the mounting ring 27 located outside the top drying tank 1. The motor 29 is positioned vertically opposite to the main gear 24. The output shaft of the motor 29 is fixed together with the main gear 24. The mounting rings 27 on the top drying tank 1 and the bottom drying tank 2 are connected by multiple mounting posts 28, so that the top drying tank 1 and the bottom drying tank 2 can be connected as one unit, thereby ensuring the stability of the top drying tank 1 and preventing tilting and collapse. The motor 29 can drive the main gear 24 to rotate, and the meshing of the main gear 24 with the driven gear 23 drives the movable ring 22 to rotate.

[0023] like Figure 1-3 As shown, the top of the drying top tank 1 is fixedly connected to a feed pipe 30, which is located in front of the support column 4. The bottom of the drying bottom tank 2 is fixedly connected to a discharge pipe 31, and the front of the top of the drying bottom tank 2 is fixedly connected to a material pipe 32. The coal gangue is transported to the drying top tank 1 for grinding through the feed pipe 30. The material pipe 32 can transport the raw materials to be mixed to the drying bottom tank 2, while the discharge pipe 31 can discharge the mixed coal gangue.

[0024] like Figure 1 and 2 As shown, a pressure relief valve 33 is installed at the bottom of the top drying tank 1. By setting the pressure relief valve 33, the pressure inside the top drying tank 1 and the bottom drying tank 2 can be adjusted to prevent excessive pressure from causing a burst.

[0025] like Figure 1 and 2 As shown, a support leg 34 is installed on the outside of the bottom of the drying tank 2. The support leg 34 is connected to the drying tank 2 so that the support leg 34 can support and fix the present invention, thereby ensuring the stability of the present invention during operation.

[0026] like Figure 2 As shown, a dustproof net 35 is installed inside the rear end of the air duct 14. The dustproof net 35 blocks dust and impurities in the air, preventing impurities from being transported into the drying top tank 1 and causing pollution.

[0027] The method for preparing coal gangue soil conditioner using the above-mentioned coal gangue soil conditioner preparation device is as follows: Step 1: The worker transports the coal gangue into the drying top tank 1 through the feed pipe 30. The electric push rod 19 drives the support column 4 connected to the support member 18 to move up and down, so that the hollow plate 6 on the support column 4 repeatedly separates from or contacts the filter plate 3, so as to provide space for the coal gangue to fall between the hollow plate 6 and the filter plate 3 for grinding. While the support column 4 drives the hollow plate 6 to move up and down, the servo motor 20 drives the hollow plate 6 on the support column 4 to rotate, so that the grinding plate 7 on the hollow plate 6 can cooperate with the filter plate 3 to grind and filter the coal gangue. The qualified coal gangue falls into the drying bottom tank 2 and is stirred and mixed by the stirring blade 10 on the support column 4. Step 2: The staff simultaneously starts the exhaust fan 15, which delivers the gas through the connecting pipe 16, the telescopic pipe 17 and the air inlet pipe 13 into the hollow ring 11. The gas in the hollow ring 11 is delivered to the support groove 5 through the air inlet 12. The gas in the support groove 5 is then delivered to the hollow plate 6 through the through hole 9, and then sprayed downward through the air hole 8. This can blow away the debris adhering to the filter plate 3, so as to avoid the filter plate 3 from being blocked and affecting the grinding effect. The remaining gas is discharged through the support groove 5, which blows away the debris accumulated at the bottom of the drying bottom tank 2, so as to avoid the debris from accumulating at the bottom of the drying bottom tank 2 and not being fully mixed. Step 3: While grinding, the operator starts the motor 29 to drive the main gear 24 to rotate. The main gear 24 drives the movable ring 22 to rotate through the meshing driven gear 23. The movable ring 22 then drives the movable part 25 connected to the support ring 21 and the flow divider 26 on it to rotate. This can drive the coal gangue accumulated outside the filter plate 3 to move, making the coal gangue more evenly distributed, thereby improving the grinding efficiency and preventing the coal gangue from accumulating in one place and affecting the grinding effect and grinding efficiency. Step 4: The material pipe 32 transports the mixed raw materials to the inside of the drying bottom tank 2 to mix with the coal gangue. The stirring blades 10, which move up and down with the support column 4, and the gas discharged through the support trough 5 further mix the coal gangue and raw materials.

[0028] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for preparing a coal gangue soil conditioner, characterized in that: It includes a top drying tank (1) and a bottom drying tank (2) located at the bottom of the top drying tank (1), and a preparation component for preparing coal gangue soil conditioner is provided between the top drying tank (1) and the bottom drying tank (2); The preparation assembly includes a filter plate (3) installed inside the drying bottom tank (2), a support column (4) is provided at the bottom of the filter plate (3), the top of the support column (4) passes through the filter plate (3) and the drying top tank (1) in sequence and extends to the outside of the top of the drying top tank (1), and a support groove (5) is provided at the bottom of the support column (4). The filter plate (3) has a hollow plate (6) fitted on the outside of the support column (4) at the top. Multiple grinding plates (7) are installed at the bottom of the hollow plate (6) and multiple air holes (8) are opened at the bottom of the hollow plate (6) between two adjacent grinding plates (7). Multiple through holes (9) connected to the support groove (5) are opened on the outside of one end of the support column (4) corresponding to the hollow plate (6). Multiple stirring blades (10) are installed on both sides of the support column (4) at the bottom of the filter plate (3). The top of the support column (4) is fitted with a hollow ring (11) through a bearing. The support column (4) has multiple air inlets (12) connected to the support groove (5) at one end of the hollow ring (11). The rear end of the hollow ring (11) is fixedly connected to an air inlet pipe (13). The bottom of the end of the air inlet pipe (13) away from the hollow ring (11) is provided with an air duct (14) installed on the rear side of the drying top tank (1). An exhaust fan (15) is installed inside the air duct (14). The top of the front end of the air duct (14) is fixedly connected to a connecting pipe (16). The top of the connecting pipe (16) is fixedly connected to a telescopic pipe (17) for connecting the air inlet pipe (13).

2. The apparatus for preparing a coal gangue soil conditioner according to claim 1, characterized in that: The top of the support column (4) is provided with a support member (18). The top of the support column (4) is movably connected to the support member (18) through a bearing. Both ends of the support member (18) are equipped with electric push rods (19) for connecting to the top of the drying top tank (1). A servo motor (20) is mounted on the top of the support member (18), and the output shaft of the servo motor (20) passes through the support member (18) and is fixed together with the top of the support column (4).

3. The apparatus for preparing a coal gangue soil conditioner according to claim 1, characterized in that: A support ring (21) is provided between the top drying tank (1) and the bottom drying tank (2). A movable ring (22) is sleeved on the outside of the support ring (21). The top and bottom ends of the movable ring (22) are respectively movably sleeved on the outside of the top drying tank (1) and the bottom drying tank (2) through bearings. A driven gear (23) is sleeved on the outside of the movable ring (22), and a main gear (24) meshes with one end of the driven gear (23). The support ring (21) has a funnel-shaped movable part (25) installed inside. The movable part (25) is located on the top of the drying bottom tank (2). Multiple spaced diverter parts (26) are installed inside the top of the movable part (25).

4. The apparatus for preparing a coal gangue soil conditioner according to claim 3, characterized in that: The top drying tank (1) and the bottom drying tank (2) are fitted with mounting rings (27) on the outside of their adjacent ends, and multiple mounting posts (28) are installed between the two mounting rings (27). A motor (29) is installed at the bottom of the mounting ring (27) located outside the drying top tank (1). The position of the motor (29) corresponds to that of the main gear (24), and the output shaft of the motor (29) is fixed together with the main gear (24).

5. The apparatus for preparing a coal gangue soil conditioner according to claim 1, characterized in that: The top of the drying top tank (1) is fixedly connected to a feed pipe (30), which is located in front of the support column (4). The bottom of the drying bottom tank (2) is fixedly connected to a discharge pipe (31), and the top front of the drying bottom tank (2) is fixedly connected to a material pipe (32).

6. The apparatus for preparing a coal gangue soil conditioner according to claim 1, characterized in that: The bottom of the drying top tank (1) is equipped with a pressure relief valve (33).

7. The apparatus for preparing a coal gangue soil conditioner according to claim 1, characterized in that: The bottom of the drying tank (2) is fitted with a support foot (34).

8. The apparatus for preparing a coal gangue soil conditioner according to claim 1, characterized in that: A dustproof net (35) is installed inside the rear end of the air duct (14).

9. A method for preparing coal gangue soil conditioner using the apparatus for preparing coal gangue soil conditioner according to claim 4, characterized in that: The specific steps include the following: Step 1: The workers transport the coal gangue to the inside of the drying top tank (1) through the feed pipe (30). The electric push rod (19) drives the support column (4) connected to the support member (18) to move up and down, so that the hollow plate (6) on the support column (4) repeatedly separates from or contacts the filter plate (3) to provide space for the coal gangue to fall between the hollow plate (6) and the filter plate (3) for grinding. While the support column (4) moves the hollow plate (6) up and down, the servo motor (20) drives the hollow plate (6) on the support column (4) to rotate, so that the grinding plate (7) on the hollow plate (6) can cooperate with the filter plate (3) to grind and filter the coal gangue. The qualified coal gangue falls into the drying bottom tank (2) and is stirred and mixed by the stirring blade (10) on the support column (4). Step 2: The staff simultaneously start the exhaust fan (15) to transport the gas through the connecting pipe (16), telescopic pipe (17) and air inlet pipe (13) to the hollow ring (11). The gas in the hollow ring (11) is transported through the air inlet (12) to the support groove (5). The gas in the support groove (5) is then transported through the through hole (9) to the hollow plate (6), and then sprayed downward through the air hole (8) to blow away the debris adhering to the filter plate (3). The remaining gas is then discharged through the support groove (5) to blow away the debris accumulated at the bottom of the drying tank (2). Step 3: While grinding, the staff starts the motor (29) to drive the main gear (24) to rotate. The main gear (24) drives the moving ring (22) to rotate through the meshing driven gear (23). The moving ring (22) then drives the moving part (25) connected to the support ring (21) and the diverting part (26) on it to rotate. This can drive the coal gangue piled outside the filter plate (3) to move, so that the coal gangue is distributed more evenly. Step 4: The material handling unit (32) transports the mixed raw materials to the drying bottom tank (2) to mix with the coal gangue. The stirring blades (10) move up and down with the support column (4) and the gas discharged through the support trough (5) further mix the coal gangue and raw materials.

Images