Efficient clean coal dewatering screen

Abstract

According to the scheme, the efficient clean coal dewatering screen comprises a dewatering screen body, and the dewatering screen body comprises a mounting base and a mounting frame mounted at the top of the mounting base through a plurality of elastic assemblies; the driving assembly and the scraping structure are arranged and matched with the vibration motor body to increase the vibration amplitude of the sieve plate, so that the movement amplitude of clean coal on the surface of the sieve plate is improved, and when a reciprocating rod rotates, a scraping plate can be driven by a movable block and a connecting rod to reciprocate on the surface of the sieve plate, so that the clean coal on the surface of the sieve plate is scraped; according to the clean coal dewatering screen, it is further guaranteed that clean coal can fully move on the surface of the screen plate, so that the dewatering capacity of the clean coal dewatering screen is optimized, the more thorough dewatering effect and the higher dewatering efficiency are achieved, when the scraper moves on the surface of the screen plate, clean coal blocked in screen holes of the screen plate can be cleaned, and the good anti-blocking performance is achieved; and stable operation of the device is ensured.

Description

Technical Field

[0001] This invention relates to the field of dewatering screen technology, and in particular to a high-efficiency clean coal dewatering screen. Background Technology

[0002] Raw coal undergoes washing processes to remove gangue and other impurities, transforming it into high-quality coal suitable for specific applications—refined coal. Refined coal then undergoes a dewatering process to remove most of the moisture, resulting in relatively dry coal. This is followed by a drying process to obtain completely dry refined coal. A refined coal dewatering screen is a vibrating dewatering device. Due to its large dewatering capacity, it is commonly used in the dewatering process of refined coal, utilizing vibration to remove most of the moisture and obtain relatively dry refined coal.

[0003] Most commercially available clean coal dewatering screens have relatively simple structures, relying solely on a vibrating motor to drive the screen mesh, causing the clean coal to tumble on the mesh for dewatering. However, this single-motor operation limits the vibration amplitude of the clean coal, resulting in limited dewatering efficiency. Furthermore, the numerous pores on the screen surface can easily trap clean coal, causing blockages and disrupting normal equipment operation. This necessitates subsequent machine shutdown and cleaning, further limiting the screen's effectiveness. To address these issues, this invention proposes a high-efficiency clean coal dewatering screen. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a high-efficiency coal dewatering screen that ensures that the clean coal can move fully on the surface of the screen plate, thereby optimizing the dewatering capacity of the clean coal dewatering screen to achieve a more thorough dewatering effect and higher dewatering efficiency. When the scraper moves on the surface of the screen plate, it can clean the clean coal blocked in the screen holes of the screen plate, and has good anti-clogging performance to ensure the stable operation of the device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency clean coal dewatering screen includes a dewatering screen body, which includes a mounting base and a mounting frame mounted on the top of the mounting base via several elastic components. A vibration motor body is mounted on the mounting frame. Two mounting plates are slidably connected inside the mounting frame, and the same screen plate is fixedly connected to the two mounting plates. The mounting plates are provided with a reset structure. Both the mounting plates and the mounting frame are provided with a drive component. The drive component is provided with a scraping structure for turning over the material on the surface of the screen plate. The mounting frame is provided with a drying structure for drying the material on the surface of the screen plate and an air outlet structure. The drive assembly includes two dual-axis motors mounted on the mounting bracket and a force-bearing plate fixedly connected to the mounting plate. Cams are fixedly connected to the output ends of the two dual-axis motors on the side away from each other, and reciprocating rods are fixedly connected to the output ends of the two dual-axis motors on the side close to each other. Helical reciprocating grooves are opened at both ends of the outer side of the reciprocating rod. The scraping structure includes two movable blocks slidably connected to the outer wall of the reciprocating rod. Two connecting rods are slidably connected to the movable blocks. The bottom ends of the two connecting rods located inside the same movable block are fixedly connected to the same scraper.

[0006] Preferably, when the cam rotates, it can periodically come into contact with the nearby force plate, and the force plate is slidably connected to the mounting bracket.

[0007] Preferably, the cross-sectional shape of the scraper is set to triangular, and the scraper is in contact with the surface of the sieve plate.

[0008] Preferably, the clean coal dewatering screen further includes a limiting component for guiding the scraper. The limiting component includes a limiting rod, at least one of the limiting rods is fixedly connected to two mounting plates, and two limiting blocks are slidably connected to the outer wall of the limiting rod. The limiting blocks are fixedly connected to the adjacent scraper.

[0009] Preferably, the reset structure includes a plurality of first reset plates fixedly connected to the mounting plate, a second reset plate fixedly connected to the first reset plate via a telescopic rod, the second reset plate being fixedly connected to the mounting bracket, and a spring being fixedly connected between the first reset plate and the second reset plate.

[0010] Preferably, the spring is sleeved on the outside of the telescopic rod, and the first reset plate is slidably connected to the mounting bracket.

[0011] Preferably, the drying structure includes two sets of rotating shafts rotatably connected to the mounting frame. Driven gears and fan blades are fixedly connected to the rotating shafts. The same driving gear meshes with the two driven gears in the same set. The driving gear is fixedly connected to the output end of a nearby dual-shaft motor.

[0012] Preferably, the drying structure further includes a first protective cover fixedly connected to the mounting bracket, the driving gear and the driven gear are both located inside the first protective cover, the diameter of the driving gear is larger than the diameter of the driven gear, two second protective covers are fixedly connected to the first protective cover, and the fan blade is located inside the second protective cover.

[0013] Preferably, the air outlet structure includes two sets of fume hoods fixedly connected to the mounting frame, and several air outlet covers are fixedly connected to the bottom of the fume hoods. The fume hoods are interconnected with the adjacent second protective cover through air guide pipes.

[0014] Preferably, when the fan blades rotate, air enters the second protective cover, then enters the fume hood through the air duct, and finally exits through the air outlet hood.

[0015] Compared with the prior art, the present invention provides a high-efficiency clean coal dewatering screen, which has the following beneficial effects: 1. This high-efficiency clean coal dewatering screen, through the setting of drive components and scraping structure, allows the operator to dewater clean coal by turning on the vibrating motor and the dual-shaft motor. When the dual-shaft motor is working, it drives the cam and reciprocating rod to rotate. When the cam rotates, it squeezes the force plate. With the cooperation of the reset structure, the mounting plate can drive the screen plate to move up and down reciprocally. In conjunction with the vibrating motor, it increases the vibration amplitude of the screen plate, thereby increasing the movement amplitude of the clean coal on the screen plate surface. When the reciprocating rod rotates, it can drive the scraper to move back and forth on the screen plate surface through the moving block and connecting rod, thereby scraping the clean coal on the screen plate surface, further ensuring that the clean coal can move fully on the screen plate surface, thus optimizing the dewatering capacity of the clean coal dewatering screen to achieve a more thorough dewatering effect and higher dewatering efficiency. When the scraper moves on the screen plate surface, it can clean the clean coal blocked in the screen holes, which has good anti-clogging performance to ensure the stable operation of the device.

[0016] 2. This high-efficiency clean coal dewatering screen, through the setting of a drying structure and an air outlet structure, can drive the drive gear to rotate when the dual-shaft motor is working. Since the diameter of the drive gear is larger than the diameter of the driven gear, the rotating shaft can drive the fan blades to rotate at high speed. Outside air enters the fume hood through the second protective cover and the air guide pipe, and then is discharged through the air outlet hood, thereby blowing the clean coal on the surface of the screen plate to perform auxiliary dewatering treatment and further enhance the dewatering performance of the clean coal dewatering screen.

[0017] 3. This high-efficiency clean coal dewatering screen, by setting a limiting component, can play a certain limiting role for the scraper with the cooperation of the limiting rod and the limiting block. This ensures that when the mounting plate drives the screen plate to move up and down inside the mounting frame, the scraper will always be in close contact with the top surface of the screen plate, thereby ensuring that the scraper can always scrape the clean coal on the surface of the screen plate and ensuring the stability of the device. Attached Figure Description

[0018] Figure 1 This is a perspective view of a high-efficiency clean coal dewatering screen proposed in this invention; Figure 2 This is a view of the connection structure of the dewatering screen body, drive assembly, scraping structure, and reset structure of the present invention. Figure 3 This is a view of the connection structure of the mounting plate, sieve plate, force-bearing plate, and reset structure of the present invention. Figure 4 This is a view of the connection structure of the dual-axis motor, cam, and reciprocating rod of the present invention. Figure 5 This is a view of the connection structure of the connecting rod, scraper, and limiting block of the present invention; Figure 6 This is a view of the connection structure of the second protective cover, air duct, fume hood and air outlet cover of the present invention; Figure 7 In this invention Figure 4 Enlarged view of point A; Figure 8 In this invention Figure 2 Enlarged view of point B; Figure 9 In this invention Figure 3 A magnified view at point C.

[0019] In the diagram: 1. Dewatering screen body; 101. Mounting base; 102. Elastic component; 103. Mounting frame; 104. Mounting plate; 105. Screen plate; 106. Vibrating motor body; 2. Drive assembly; 201. Dual-shaft motor; 202. Cam; 203. Reciprocating rod; 204. Force plate; 3. Scraping structure; 301. Movable block; 302. Connecting rod; 303. Scraper; 4. Reset structure; 401. 1. Reset plate; 402. Telescopic rod; 403. Second reset plate; 404. Spring; 5. Drying structure; 501. Rotating shaft; 502. Driving gear; 503. Driven gear; 504. Fan blade; 505. First protective cover; 506. Second protective cover; 6. Air outlet structure; 601. Fume hood; 602. Air outlet cover; 603. Air duct; 7. Limiting assembly; 701. Limiting rod; 702. Limiting block. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Example 1: Refer to Figure 1-5A high-efficiency clean coal dewatering screen includes a dewatering screen body 1, which includes a mounting base 101 and a mounting frame 103 mounted on the top of the mounting base 101 by a plurality of elastic components 102. A vibration motor body 106 is mounted on the mounting frame 103. Two mounting plates 104 are slidably connected inside the mounting frame 103, and the same screen plate 105 is fixedly connected to the two mounting plates 104. A reset structure 4 is provided on the mounting plate 104. Both the mounting plate 104 and the mounting frame 103 are provided with a drive component 2. The drive component 2 is provided with a scraping structure 3 for turning over the material on the surface of the screen plate 105. The mounting frame 103 is provided with a drying structure 5 for drying the material on the surface of the screen plate 105 and an air outlet structure 6. The drive assembly 2 includes two dual-axis motors 201 mounted on the mounting bracket 103 and a force plate 204 fixedly connected to the mounting plate 104. A cam 202 is fixedly connected to the output end of the two dual-axis motors 201 on the side away from each other, and a reciprocating rod 203 is fixedly connected to the output end of the two dual-axis motors 201 on the side close to each other. Both ends of the reciprocating rod 203 are provided with spiral reciprocating grooves. The scraping structure 3 includes two movable blocks 301 slidably connected to the outer wall of the reciprocating rod 203. Two connecting rods 302 are slidably connected to the movable blocks 301. The bottom ends of the two connecting rods 302 located inside the same movable block 301 are fixedly connected to the same scraper 303.

[0023] In this invention, when the cam 202 rotates, it periodically contacts the nearby force plate 204. The force plate 204 is slidably connected to the mounting frame 103. By setting the cam 202 and the force plate 204, when the dual-shaft motor 201 drives the cam 202 to rotate, the cam 202 will periodically contact the force plate 204, thereby squeezing the mounting plate 104 and the screen plate 105, increasing the vibration amplitude of the screen plate 105, thereby increasing the movement amplitude of the clean coal on the surface of the screen plate 105, so that the clean coal can move fully on the surface of the screen plate 105, thereby optimizing the dewatering capacity of the clean coal dewatering screen, so as to achieve a more thorough dewatering effect and higher dewatering efficiency.

[0024] In this invention, the cross-sectional shape of the scraper 303 is set as a triangle, and the scraper 303 is in contact with the surface of the screen plate 105. By setting the cross-sectional shape of the scraper 303 as a triangle, the squeezing force on the clean coal when the scraper 303 moves on the surface of the screen plate 105 can be reduced, thereby avoiding damage to the clean coal and ensuring the quality of the clean coal processed subsequently.

[0025] In this invention, the clean coal dewatering screen also includes a limiting component 7 for guiding the scraper 303. The limiting component 7 includes a limiting rod 701, at least one limiting rod 701 is fixedly connected to two mounting plates 104, and two limiting blocks 702 are slidably connected to the outer wall of the limiting rod 701. The limiting blocks 702 are fixedly connected to the adjacent scraper 303. By setting the limiting rod 701 and the limiting blocks 702, the limiting rod 701 and the limiting blocks 702 can play a certain limiting role on the scraper 303, ensuring that when the mounting plate 104 drives the screen plate 105 to move up and down inside the mounting frame 103, the scraper 303 always remains in close contact with the top surface of the screen plate 105, thereby ensuring that the scraper 303 can always scrape the clean coal on the surface of the screen plate 105 and ensuring the stability of the device.

[0026] In this invention, the reset structure 4 includes several first reset plates 401 fixedly connected to the mounting plate 104. Second reset plates 403 are fixedly connected to the first reset plates 401 via telescopic rods 402. The second reset plates 403 are fixedly connected to the mounting frame 103, and a spring 404 is fixedly connected between the first reset plates 401 and the second reset plates 403. The spring 404 is sleeved on the outside of the telescopic rods 402. The first reset plates 401 are slidably connected to the mounting frame 103. By configuring the first reset plates 401, telescopic rods 402, second reset plates 403, and springs 404, the mounting plate 104 and the screen plate 105 can stably reciprocate up and down when the dual-axis motor 201 drives the cam 202 to rotate, thereby facilitating the dewatering of the clean coal on the surface of the screen plate 105.

[0027] Example 2: Refer to Figure 1-9 A high-efficiency clean coal dewatering screen includes a dewatering screen body 1, which includes a mounting base 101 and a mounting frame 103 mounted on the top of the mounting base 101 by a plurality of elastic components 102. A vibration motor body 106 is mounted on the mounting frame 103. Two mounting plates 104 are slidably connected inside the mounting frame 103, and the same screen plate 105 is fixedly connected to the two mounting plates 104. A reset structure 4 is provided on the mounting plate 104. Both the mounting plate 104 and the mounting frame 103 are provided with a drive component 2. The drive component 2 is provided with a scraping structure 3 for turning over the material on the surface of the screen plate 105. The mounting frame 103 is provided with a drying structure 5 for drying the material on the surface of the screen plate 105 and an air outlet structure 6. The drive assembly 2 includes two dual-axis motors 201 mounted on the mounting bracket 103 and a force plate 204 fixedly connected to the mounting plate 104. A cam 202 is fixedly connected to the output end of the two dual-axis motors 201 on the side away from each other, and a reciprocating rod 203 is fixedly connected to the output end of the two dual-axis motors 201 on the side close to each other. Both ends of the reciprocating rod 203 are provided with spiral reciprocating grooves. The scraping structure 3 includes two movable blocks 301 slidably connected to the outer wall of the reciprocating rod 203. Two connecting rods 302 are slidably connected to the movable blocks 301. The bottom ends of the two connecting rods 302 located inside the same movable block 301 are fixedly connected to the same scraper 303.

[0028] In this invention, when the cam 202 rotates, it periodically contacts the nearby force plate 204. The force plate 204 is slidably connected to the mounting frame 103. By setting the cam 202 and the force plate 204, when the dual-shaft motor 201 drives the cam 202 to rotate, the cam 202 will periodically contact the force plate 204, thereby squeezing the mounting plate 104 and the screen plate 105, increasing the vibration amplitude of the screen plate 105, thereby increasing the movement amplitude of the clean coal on the surface of the screen plate 105, so that the clean coal can move fully on the surface of the screen plate 105, thereby optimizing the dewatering capacity of the clean coal dewatering screen, so as to achieve a more thorough dewatering effect and higher dewatering efficiency.

[0029] In this invention, the cross-sectional shape of the scraper 303 is set as a triangle, and the scraper 303 is in contact with the surface of the screen plate 105. By setting the cross-sectional shape of the scraper 303 as a triangle, the squeezing force on the clean coal when the scraper 303 moves on the surface of the screen plate 105 can be reduced, thereby avoiding damage to the clean coal and ensuring the quality of the clean coal processed subsequently.

[0030] In this invention, the clean coal dewatering screen also includes a limiting component 7 for guiding the scraper 303. The limiting component 7 includes a limiting rod 701, at least one limiting rod 701 is fixedly connected to two mounting plates 104, and two limiting blocks 702 are slidably connected to the outer wall of the limiting rod 701. The limiting blocks 702 are fixedly connected to the adjacent scraper 303. By setting the limiting rod 701 and the limiting blocks 702, the limiting rod 701 and the limiting blocks 702 can play a certain limiting role on the scraper 303, ensuring that when the mounting plate 104 drives the screen plate 105 to move up and down inside the mounting frame 103, the scraper 303 always remains in close contact with the top surface of the screen plate 105, thereby ensuring that the scraper 303 can always scrape the clean coal on the surface of the screen plate 105 and ensuring the stability of the device.

[0031] In this invention, the reset structure 4 includes several first reset plates 401 fixedly connected to the mounting plate 104. Second reset plates 403 are fixedly connected to the first reset plates 401 via telescopic rods 402. The second reset plates 403 are fixedly connected to the mounting frame 103, and a spring 404 is fixedly connected between the first reset plates 401 and the second reset plates 403. The spring 404 is sleeved on the outside of the telescopic rods 402. The first reset plates 401 are slidably connected to the mounting frame 103. By configuring the first reset plates 401, telescopic rods 402, second reset plates 403, and springs 404, the mounting plate 104 and the screen plate 105 can stably reciprocate up and down when the dual-axis motor 201 drives the cam 202 to rotate, thereby facilitating the dewatering of the clean coal on the surface of the screen plate 105.

[0032] In this invention, the drying structure 5 includes two sets of rotating shafts 501 rotatably connected to the mounting frame 103. Driven gears 503 and fan blades 504 are fixedly connected to the rotating shafts 501. The two driven gears 503 in the same set mesh with the same driving gear 502. The driving gear 502 is fixedly connected to the output end of a nearby dual-shaft motor 201. The drying structure 5 also includes a first protective cover 505 fixedly connected to the mounting frame 103. The driving gear 502 and driven gear 503 are both located inside the nearby first protective cover 505. The diameter of the driving gear 502 is larger than the diameter of the driven gear 503. Two second protective covers 506 are fixedly connected to the first protective cover 505, and the fan blades 504 are located inside the nearby second protective covers 506. The air outlet structure 6 includes two sets of fume hoods 601 fixedly connected to the mounting frame 103. Several air outlet hoods 602 are fixedly connected to the bottom of the fume hoods 601. Air outlets are connected to the fume hoods 601 via... The air duct 603 is connected to the adjacent second protective cover 506. When the fan blade 504 rotates, air enters the interior of the second protective cover 506, then enters the interior of the fume hood 601 through the air duct 603, and finally exits through the exhaust hood 602. By setting up the rotating shaft 501, the driving gear 502, the driven gear 503, the fan blade 504, the fume hood 601, the exhaust hood 602, and the air duct 603, when the dual-shaft motor 201 is working, it can drive the driving gear 502 to rotate. Since the diameter of the driving gear 502 is larger than the diameter of the driven gear 503, the rotating shaft 501 can drive the fan blade 504 to rotate at high speed. Outside air enters the interior of the fume hood 601 through the second protective cover 506 and the air duct 603, and then exits through the exhaust hood 602, thereby blowing the clean coal on the surface of the screen plate 105 to perform auxiliary dewatering treatment and further enhance the dewatering performance of the clean coal dewatering screen.

[0033] Working principle: When the operator uses this device to dewater clean coal, the operator turns on the vibratory motor body 106 and the dual-shaft motor 201. When the dual-shaft motor 201 is working, it drives the cam 202 and the reciprocating rod 203 to rotate. When the cam 202 rotates, it squeezes the force plate 204. The force plate 204 drives the mounting plate 104 and the screen plate 105 to move closer to the mounting base 101, causing the first reset plate 401 to move away from the second reset plate 403, thereby stretching the spring 404. When the cam 202 releases the pressure on the force plate 204, the spring 404... Under the action of the force, the mounting plate 104 drives the screen plate 105 to move away from the mounting base 101, so that the mounting plate 104 can drive the screen plate 105 to move up and down reciprocally. In conjunction with the vibration motor body 106 and the elastic component 102, the vibration amplitude of the screen plate 105 is increased, thereby increasing the movement amplitude of the clean coal on the surface of the screen plate 105. When the reciprocating rod 203 rotates, it can drive the scraper 303 to move reciprocally on the surface of the screen plate 105 through the movable block 301 and the connecting rod 302, thereby scraping the clean coal on the surface of the screen plate 105, so that the clean coal can move fully on the surface of the screen plate 105. When the dual-shaft motor 201 is working, it can drive the drive gear 502 to rotate. Since the diameter of the drive gear 502 is larger than the diameter of the driven gear 503, the rotating shaft 501 can drive the fan blade 504 to rotate at high speed. Outside air enters the fume hood 601 through the second protective cover 506 and the air guide pipe 603, and is then discharged through the air outlet hood 602, thereby blowing the clean coal on the surface of the screen plate 105 to perform auxiliary dewatering treatment.

[0034] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency clean coal dewatering screen, comprising a dewatering screen body (1), the dewatering screen body (1) comprising a mounting base (101), and a mounting frame (103) mounted on the top of the mounting base (101) via a plurality of elastic components (102), a vibration motor body (106) being mounted on the mounting frame (103), characterized in that: Two mounting plates (104) are slidably connected inside the mounting frame (103), and the same sieve plate (105) is fixedly connected to the two mounting plates (104), a reset structure (4) is provided on the mounting plate (104), a driving assembly (2) is provided on both the mounting plate (104) and the mounting frame (103), a scraping structure (3) for turning over the material on the surface of the sieve plate (105) is provided on the driving assembly (2), and a drying structure (5) and an air outlet structure (6) for drying the material on the surface of the sieve plate (105) are provided on the mounting frame (103); The driving assembly (2) comprises two dual-axis motors (201) mounted on a mounting frame (103), and a force-bearing plate (204) fixedly connected to the mounting plate (104); a cam (202) is fixedly connected to the output ends of the two dual-axis motors (201) on a side away from each other; a reciprocating rod (203) is fixedly connected to the output ends of the two dual-axis motors (201) on a side close to each other; spiral reciprocating grooves are provided at both ends of the outer side of the reciprocating rod (203); and the scraping structure (3) comprises two movable blocks (301) slidably connected to the outer wall of the reciprocating rod (203); two connecting rods (302) are slidably connected to the movable block (301); and the bottom ends of the two connecting rods (302) located inside the same movable block (301) are fixedly connected to the same scraper (303).

2. The high-efficiency clean coal dewatering screen according to claim 1, characterized in that: When the cam (202) rotates, it can periodically fit with the nearby force-bearing plate (204), and the force-bearing plate (204) is slidably connected to the mounting frame (103).

3. The high-efficiency clean coal dewatering screen according to claim 1, characterized in that: The cross-sectional shape of the scraper (303) is set to be triangular, and the scraper (303) is in contact with the surface of the sieve plate (105).

4. A high-efficiency clean coal dewatering screen according to claim 3, characterized in that: The clean coal dewatering screen further comprises a limit assembly (7) for guiding the scraper (303), the limit assembly (7) comprising a limit rod (701), at least one of the limit rods (701) being fixedly connected to two mounting plates (104), and two limit blocks (702) being slidably connected to the outer wall of the limit rod (701), and the limit blocks (702) being fixedly connected to the adjacent scraper (303).

5. The high-efficiency clean coal dewatering screen according to claim 4, characterized in that: The reset structure (4) comprises a plurality of first reset plates (401) fixedly connected to the mounting plate (104); a second reset plate (403) is fixedly connected to the first reset plate (401) via a telescopic rod (402); the second reset plate (403) is fixedly connected to the mounting frame (103); and a spring (404) is fixedly connected between the first reset plate (401) and the second reset plate (403).

6. The high-efficiency clean coal dewatering screen according to claim 5, characterized in that: The spring (404) is sleeved on the outside of the telescopic rod (402), and the first reset plate (401) is slidably connected to the mounting frame (103).

7. The high-efficiency clean coal dewatering screen according to claim 6, characterized in that: The drying structure (5) comprises two groups of rotating shafts (501) rotatably connected to the mounting frame (103), the rotating shafts (501) being fixedly connected with driven gears (503) and fan blades (504), the two driven gears (503) of the same group being meshed with the same driving gear (502), and the driving gear (502) being fixedly connected to the output end of the adjacent dual-axis motor (201).

8. The high-efficiency clean coal dewatering screen according to claim 7, characterized in that: The drying structure (5) further comprises a first protective cover (505) fixedly connected to the mounting frame (103); the driving gear (502) and the driven gear (503) are both located inside the first protective cover (505) adjacent to each other; the diameter of the driving gear (502) is greater than the diameter of the driven gear (503); two second protective covers (506) are fixedly connected to the first protective cover (505); and the fan blades (504) are located inside the second protective covers (506) adjacent to each other.

9. The high-efficiency clean coal dewatering screen according to claim 8, characterized in that: The air outlet structure (6) comprises two groups of fume hoods (601) fixedly connected to the mounting frame (103), a plurality of air outlet covers (602) being fixedly connected to the bottom of the fume hood (601), and the fume hood (601) is connected to a second protective cover (506) adjacent thereto via an air guide duct (603).

10. The high-efficiency clean coal dewatering screen according to claim 9, characterized in that: When the fan blades (504) rotate, air enters the interior of the second protective cover (506), then enters the interior of the fume hood (601) through the air duct (603), and finally is discharged through the air outlet cover (602).

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