Coal mine multi-stage sorting and washing device

Abstract

The invention discloses a coal mine multi-stage sorting and washing device, and relates to the technical field of multi-stage sorting and washing, the coal mine multi-stage sorting and washing device comprises a tank body, one end of the tank body is fixedly connected with a feeding assembly, the other end of the tank body is provided with a discharging inclined plate, the top end of the discharging inclined plate is provided with a first discharging port, and the inner bottom surface of the tank body is provided with a plurality of first mesh plates; the bottom face of the first mesh plate is covered with a guide chute, the tail end of the guide chute is fixedly connected with a filter assembly, an overflow groove is formed in one side of the inner wall of the groove body, a plurality of first chain wheels are symmetrically arranged on the two sides of the upper end of the groove body, first guide grooves are symmetrically formed in the two sides of the bottom end of the groove body, and first chains are installed on the first chain wheels and the first guide grooves. Through cooperation of the first chain and the first scraping plate, the first motor drives the first chain wheel to drive the first chain to rotate, the problems that a filtering assembly of a traditional washing device is prone to being blocked by sludge, small gangue and middling coal, and shutdown drainage is needed during cleaning are finally solved, and the coal sorting and washing efficiency and convenience and the cyclic utilization efficiency of water resources are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-stage sorting and washing, and particularly relates to a multi-stage sorting and washing device for coal mines. Background Art

[0002] In order to realize water circulation in traditional washing devices, a funnel is usually directly fixed at the mesh plate on the bottom surface of the tank bottom, and a filtering component is assembled inside the funnel. During the continuous production process of coal sorting and washing, when a mixed flow containing sludge, smaller gangue and middlings flows through here, these impurities are extremely likely to accumulate at the filtering component. As time goes by, the filtering component will gradually be blocked. Once blocked, the filtering and circulation process of the entire production cycle water will be hindered, affecting the washing effect and production efficiency. For this reason, the present application designs a multi-stage sorting and washing device for coal mines to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies existing in the prior art and to propose a multi-stage sorting and washing device for coal mines.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions: A multi-stage sorting and washing device for coal mines, including a tank body, a feeding component is fixedly connected to one end of the tank body, a discharge inclined plate is provided at the other end of the tank body, a first discharge port is provided at the top end of the discharge inclined plate, a plurality of first mesh plates are provided on the inner bottom surface of the tank body, a guide material inclined groove is covered on the bottom surface of the first mesh plate, a filtering component is fixedly connected to the end of the guide material inclined groove, an overflow tank is provided on one side of the inner wall of the tank body, a plurality of first sprockets are symmetrically provided on both sides of the upper end of the tank body, first guide grooves are symmetrically provided on both sides of the bottom end of the tank body, and a first chain is installed on the first sprockets and the first guide grooves.

[0005] Preferably, first scrapers are fixedly connected to the first chain at equal intervals, several micro holes are evenly formed in the first scrapers, a first motor installed on the outer wall of the tank body is coaxially fixedly connected to one of the first sprockets of the plurality of first sprockets, and a sedimentation tank is provided on one side of the tank body.

[0006] Preferably, the feeding component includes a feeding hopper fixedly connected to the tank body, a magnetic separation rotating cylinder is rotatably provided in the feeding hopper, a second motor installed on the outer wall of the feeding hopper is coaxially fixedly connected to one end of the magnetic separation rotating cylinder, and a first guide inclined plate is provided on one side of the inner wall of the feeding hopper, and one side of the first guide inclined plate abuts against the outer wall of the magnetic separation rotating cylinder.

[0007] Preferably, the filtering component includes a material guiding cylinder installed on the sedimentation tank. The upper end of one side of the outer wall of the material guiding cylinder is connected and fixed to a material guiding chute. A rotating shaft is rotatably arranged in the material guiding cylinder, and a spiral blade is arranged on the rotating shaft. One end of the material guiding cylinder penetrates through the outer wall of one end of the sedimentation tank. A plurality of leakage holes are formed in the bottom surface of the cylinder body of the material guiding cylinder located inside the sedimentation tank. One end of the rotating shaft is coaxially fixed with a third motor installed on the outer wall of the sedimentation tank.

[0008] Preferably, the inner bottom surface of the sedimentation tank is inclined. A plurality of second sprockets are rotatably installed at the bottom end of one inner wall of the sedimentation tank. A second chain is installed on the second sprockets. A plurality of second scraping plates are fixedly arranged on the second chain. A second guiding groove corresponding to the track of the second chain is arranged on the other inner wall of the sedimentation tank. One end of the second scraping plate is installed in the guiding groove. A sludge outlet is formed in the outer wall of the higher end of the inner bottom surface of the sedimentation tank. An inclined plate is arranged on the outer wall of the sedimentation tank at the sludge outlet.

[0009] Preferably, a movable groove is formed in the discharge inclined plate. A second mesh plate is arranged in the movable groove. A vibration motor is fixedly arranged on the inner bottom surface of the second mesh plate. A plurality of springs are equidistantly arranged on the peripheral side of the inner bottom surface of the second mesh plate. A plurality of support plates corresponding to the bottom ends of the springs are fixedly arranged on the bottom surface of the discharge inclined plate. A water collecting cover is arranged on the bottom surface of the discharge inclined plate covering the second mesh plate.

[0010] Preferably, a circulation pipe is communicated at the lower end of the inner bottom surface of the sedimentation tank. A pump is arranged on the circulation pipe. The bottom end of the water collecting cover is communicated with the circulation pipe. One end of the circulation pipe is communicated with the upper end of one inner wall of the tank body.

[0011] Preferably, a plurality of micropores are evenly formed in the blades of the spiral blade.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of the first chain and the first scraper, the first motor drives the first sprocket to drive the first chain to rotate, so that the first scraper moves in the tank, facilitating the scraping of coal and impurities towards the discharge inclined plate, improving the efficiency of material transportation, and further enabling the function of preliminary sorting of materials. Through the cooperation of the magnetic separation rotating drum and the first guide inclined plate in the feeding assembly, the second motor drives the magnetic separation rotating drum to rotate, and the first guide inclined plate guides the materials, facilitating magnetic separation of the feeding to remove magnetic impurities and improving the purity of coal. Furthermore, the function of preliminary impurity removal can be achieved. Through the cooperation of the guide cylinder, spiral blade and leakage holes in the filtering assembly, the third motor drives the rotating shaft to make the spiral blade rotate, facilitating the separation of water in the materials through the leakage holes. At the same time, the spiral blade conveys the materials, improving the effect of solid-liquid separation. Furthermore, the functions of material filtration and transportation can be achieved. Through the cooperation of the sedimentation tank, the second sprocket, the second chain and the second scraper, the second sprocket drives the second chain to rotate, so that the second scraper scrapes the precipitated sludge towards the sludge outlet, facilitating the cleaning of the sludge in the sedimentation tank and improving the convenience of sludge cleaning. Furthermore, the effective cleaning function of the sedimentation tank can be achieved. Through the cooperation of the second mesh plate, the vibration motor and the spring on the discharge inclined plate, the vibration motor drives the second mesh plate to vibrate, and the spring plays a buffering role, facilitating further screening of coal and drainage, improving the effects of coal screening and dehydration. Furthermore, the functions of fine coal screening and dehydration can be achieved. Through the cooperation of the circulation pipe and the pump, it is convenient to circulate the water in the sedimentation tank and the water collecting cover to the tank, improving the recycling rate of water resources. Furthermore, the function of water resource recycling can be achieved. Finally, the problem that the filtering assembly of the traditional washing device is easily blocked by sludge, small gangue and medium coal, and it is necessary to stop the machine for drainage during cleaning, with cumbersome operation and affecting production, is solved, and the efficiency of coal separation and washing, convenience and the recycling efficiency of water resources are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and the schematic embodiments and descriptions of the present invention are used to explain the present invention without unduly limiting the present invention. In the drawings: Figure 1 is a schematic diagram of the first perspective of the overall structure proposed by the present invention; Figure 2 is a schematic diagram of the second perspective of the overall structure proposed by the present invention; Figure 3 is a schematic diagram of the first perspective of the overall sectional structure proposed by the present invention; Figure 4 is a schematic diagram of the first perspective of the overall sectional structure of the filtering assembly proposed by the present invention; Figure 5 is a schematic diagram of the second perspective of the overall sectional structure of the filtering assembly proposed by the present invention; Figure 6Schematic diagram of the first perspective of the overall structure of the second mesh plate proposed by the present invention.

[0014] Reference numerals in the figure: 1. trough body; 2. discharge inclined plate; 3. first discharge port; 4. first mesh plate; 5. first chain; 6. first scraper; 7. first motor; 8. feed hopper; 9. magnetic separation rotary drum; 10. material guiding cylinder; 11. spiral blade; 12. second chain; 13. second mesh plate; 14. vibration motor; 15. spring; 16. circulation pipe; 17. pump; 18. sedimentation tank; 19. material guiding chute; 20. second scraper. Specific embodiments

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0016] Embodiment: Refer to Figure 1-6, a multi-stage separation and washing device for coal mines in the present invention, includes a trough body 1. One end of the trough body 1 is fixedly connected with a feeding assembly. The other end of the trough body 1 is provided with a discharge inclined plate 2. The top end of the discharge inclined plate 2 is provided with a first discharge port 3. The inner bottom surface of the trough body 1 is provided with a plurality of first mesh plates 4. The bottom surface of the first mesh plate 4 is covered with a material guiding inclined trough 19. The end of the material guiding inclined trough 19 is fixedly connected with a filtering assembly. One side of the inner wall of the trough body 1 is provided with an overflow trough. Both sides of the upper end of the trough body 1 are symmetrically provided with a plurality of first sprockets. Both sides of the bottom end of the trough body 1 are symmetrically provided with first guiding grooves. A first chain 5 is installed on the first sprockets and the first guiding grooves. The feeding assembly facilitates feeding the coal mine materials to be separated and washed into the trough body 1. The discharge inclined plate 2 and the first discharge port 3 facilitate the discharge of the separated materials. The first mesh plate 4 allows water flow and some fine impurities to pass through, initially separating the materials. The material guiding inclined trough 19 guides the materials to the filtering assembly. The overflow trough can prevent the water level in the trough body 1 from being too high. The cooperation of the first sprockets and the first guiding grooves with the first chain 5 provides a basis for subsequent material transportation. The first chain 5 is equidistantly fixedly connected with first scrapers 6. The first scrapers 6 are evenly provided with several micro-holes. One of the first sprockets of the plurality of first sprockets is coaxially fixedly connected with a first motor 7 installed on the outer wall of the trough body 1. One side of the trough body 1 is provided with a sedimentation tank 18. The first motor 7 drives the first sprocket to rotate, driving the first chain 5 and the first scrapers 6 thereon to move. The first scrapers 6 can scrape the materials in the trough body 1 towards the discharge inclined plate 2, realizing the transportation and initial separation of the materials. The micro-holes on the first scrapers 6 allow water flow to pass through, reducing the resistance when the scrapers move. The sedimentation tank 18 is used to precipitate the impurities in the sewage. The feeding assembly includes a feeding hopper 8 fixedly connected to the trough body 1. A magnetic separation rotating cylinder 9 is rotatably arranged in the feeding hopper 8. One end of the magnetic separation rotating cylinder 9 is coaxially fixedly connected with a second motor installed on the outer wall of the feeding hopper 8. One side of the inner wall of the feeding hopper 8 is provided with a first material guiding inclined plate. One side of the first material guiding inclined plate abuts against the outer wall of the magnetic separation rotating cylinder 9. The second motor drives the magnetic separation rotating cylinder 9 to rotate. When the coal mine materials pass through the feeding hopper 8, the magnetic separation rotating cylinder 9 can adsorb the magnetic impurities therein. The first material guiding inclined plate guides the materials to better contact with the magnetic separation rotating cylinder 9, realizing the preliminary impurity removal during feeding and improving the subsequent separation and washing effect.

[0017] In the present invention, the filtering assembly includes a material guiding cylinder 10 installed on the sedimentation tank 18. One upper end of the outer wall of the material guiding cylinder 10 is communicated and fixedly connected with a material guiding chute 19. A rotating shaft is rotatably arranged in the material guiding cylinder 10, and a spiral blade 11 is arranged on the rotating shaft. One end of the material guiding cylinder 10 penetrates through one end outer wall of the sedimentation tank 18. A plurality of leakage holes are formed on the bottom surface of the cylinder body of the material guiding cylinder 10 located inside the sedimentation tank 18. One end of the rotating shaft is coaxially fixedly connected with a third motor installed on the outer wall of the sedimentation tank 18. The third motor drives the rotating shaft to make the spiral blade 11 rotate, so as to convey the material entering the material guiding cylinder 10 from the material guiding chute 19. The water in the material flows into the sedimentation tank 18 through the leakage holes on the material guiding cylinder 10, realizing solid-liquid separation, avoiding the problem that the traditional funnel filtering assembly is easy to be blocked, and improving the filtering efficiency and stability. The inner bottom surface of the sedimentation tank 18 is inclined. A plurality of second sprockets are rotatably installed at the bottom end of one inner wall of the sedimentation tank 18. A second chain 12 is installed on the second sprockets. A plurality of second scraping plates 20 are fixedly connected to the second chain 12. A second guiding groove corresponding to the track of the second chain 12 is arranged on the other inner wall of the sedimentation tank 18. One end of the second scraping plate 20 is installed in the guiding groove. A sludge outlet is formed on the outer wall of the higher end of the inner bottom surface of the sedimentation tank 18. An inclined plate is arranged on the outer wall of the sedimentation tank 18 at the sludge outlet. The inclination of the inner bottom surface of the sedimentation tank 18 is beneficial to the precipitation and collection of sludge. The second sprockets drive the second chain 12 to rotate, so that the second scraping plates 20 scrape the precipitated sludge towards the sludge outlet under the guidance of the second guiding groove and discharge it through the inclined plate, realizing the automatic cleaning of the sedimentation tank 18 and reducing manual intervention; a movable groove is formed on the discharging inclined plate 2. A second mesh plate 13 is arranged in the movable groove. A vibration motor 14 is fixedly connected to the inner bottom surface of the second mesh plate 13. A plurality of springs 15 are equidistantly arranged on the periphery of the inner bottom surface of the second mesh plate 13. A plurality of supporting plates corresponding to the bottom ends of the springs 15 are fixedly arranged on the bottom surface of the discharging inclined plate 2. A water collecting cover is arranged on the bottom surface of the discharging inclined plate 2 at the position of the second mesh plate 13. The vibration motor 14 drives the second mesh plate 13 to vibrate. The springs 15 play a buffering role, further screening and dehydrating the material on the second mesh plate 13. The water collecting cover collects the water generated by dehydration, improving the screening and dehydration effect of coal.

[0018] In the present invention, a circulating pipe 16 is communicated at the lower end of the inner bottom surface of the sedimentation tank 18. A pump 17 is arranged on the circulating pipe 16. The bottom end of the water collecting cover is communicated with the circulating pipe 16. One end of the circulating pipe 16 is communicated with the upper end of one inner wall of the tank body 1. The pump 17 works, and circulates the water in the sedimentation tank 18 and the water collecting cover to the inside of the tank body 1 through the circulating pipe 16, realizing the recycling of water resources, reducing production costs and improving the utilization rate of water resources; a plurality of micropores are evenly formed on the blades of the spiral blade 11. The micropores on the spiral blade 11 can further discharge the water in the material during the conveying process, improving the solid-liquid separation effect and enhancing the working efficiency of the filtering assembly.

[0019] Working principle: In this embodiment, the present invention also provides a usage method for a multi-stage coal separation and washing device in coal mines, including the following steps: Step 1: Start the equipment, turn on the first motor 7, the second motor, the third motor, and the pump 17, so that each moving part enters the working state. Feed the coal mine materials to be separated and washed through the feed hopper 8. During the feeding process, the second motor drives the magnetic separation drum 9 to rotate. The materials are guided by the first guide inclined plate and come into contact with the magnetic separation drum 9. The magnetic separation drum 9 adsorbs the magnetic impurities therein to achieve preliminary impurity removal and improve the purity of the coal raw materials. Step 2: After the materials that have undergone preliminary impurity removal enter the tank 1, they are separated under the action of water flow. The clean coal, due to its relatively small density, will be discharged through the overflow tank to achieve the preliminary separation of clean coal. The gangue and medium coal sink to the bottom due to their larger density. The first motor 7 drives the first sprocket to rotate, causing the first scraper 6 on the first chain 5 to move in the tank 1, scraping the gangue and medium coal towards the discharge inclined plate 2. At the same time, during this process, the sludge enters the first mesh plate 4 at the bottom with the water flow. The first mesh plate 4 allows the sludge and part of the water to pass through and enter the lower guide chute 19. Step 3: The sludge and other materials that enter the guide tube 10 from the guide chute 19 are transported under the action of the spiral blade 11 driven by the third motor. During the transportation process, the water in the materials flows into the sedimentation tank 18 through the leakage holes of the guide tube 10 to achieve solid-liquid separation. The micropores on the spiral blade 11 further promote the outflow of water and improve the separation effect. Step 4: The sorted materials are scraped by the first scraper 6 to the discharge inclined plate 2. The vibration motor 14 drives the second mesh plate 13 to vibrate, and the materials are further screened and dewatered on the second mesh plate 13. The water generated by dewatering is collected by the water collection cover. Step 5: The sludge deposited in the sedimentation tank 18 is scraped towards the sludge outlet and discharged through the inclined plate under the action of the second chain 12 and the second scraper 20 driven by the second sprocket. At the same time, the pump 17 circulates the water in the sedimentation tank 18 and the water collection cover to the tank 1 through the circulation pipe 16 to achieve the recycling of water resources.

[0020] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A coal mine multi-stage sorting and washing device, comprising a tank body (1), characterized in that: A feed assembly is fixedly provided on one end of the trough body (1), a discharge inclined plate (2) is provided on the other end of the trough body (1), a first discharge port (3) is provided at the top end of the discharge inclined plate (2), a plurality of first mesh plates (4) are provided on the inner bottom surface of the trough body (1), a material guide chute (19) is provided on the bottom surface cover of the first mesh plates (4), a filter assembly is fixedly provided at the end of the material guide chute (19), an overflow groove is provided on one side of the inner wall of the trough body (1), a plurality of first sprocket wheels are symmetrically provided on both sides of the upper end of the trough body (1), a first guide groove is symmetrically provided on both sides of the bottom end of the trough body (1), and a first chain (5) is mounted on the first sprocket wheel and the first guide groove.

2. A coal mine multi-stage sorting and washing device according to claim 1, characterized in that: First scrapers (6) are fixedly connected to the first chain (5) at equal intervals, and a plurality of micro holes are evenly formed on the first scraper (6). A first motor (7) mounted on the outer wall of the tank body (1) is coaxially fixedly connected to one side of one of the first sprockets of the plurality of first sprockets, and a sedimentation tank (18) is provided on one side of the tank body (1).

3. A coal mine multi-stage sorting and washing device according to claim 2, characterized in that: The feed assembly comprises a feed hopper (8) fixedly connected to the tank body (1), a magnetic separation drum (9) rotatably arranged in the feed hopper (8), one end of the magnetic separation drum (9) being coaxially fixedly connected to a second motor mounted on the outer wall of the feed hopper (8), a first material guide inclined plate being arranged on one side of the inner wall of the feed hopper (8), one side of the first material guide inclined plate abutting against the outer wall of the magnetic separation drum (9).

4. A coal mine multi-stage sorting and washing device according to claim 3, characterized in that: The filtering assembly comprises a material guide cylinder (10) mounted on a sedimentation tank (18); an upper end of one side of an outer wall of the material guide cylinder (10) is connected and fixedly connected to a material guide chute (19); a rotating shaft is rotatably arranged inside the material guide cylinder (10); a spiral blade (11) is arranged on the rotating shaft; one end of the material guide cylinder (10) passes through an outer wall of one end of the sedimentation tank (18); a plurality of leakage holes are formed on the bottom surface of the body of the material guide cylinder (10) located in the sedimentation tank (18); and one end of the rotating shaft is coaxially fixedly connected to a third motor mounted on the outer wall of the sedimentation tank (18).

5. A coal mine multi-stage sorting and washing device according to claim 4, characterized in that: The inner bottom surface of the sedimentation tank (18) is inclined, a plurality of second sprockets are rotatably mounted on the bottom end of the inner wall of one side of the sedimentation tank (18), a second chain (12) is mounted on the second sprocket, a plurality of second scrapers (20) are fixedly mounted on the second chain (12), a second guide groove corresponding to the track of the second chain (12) is provided on the inner wall of the other side of the sedimentation tank (18), one end of the second scraper (20) is mounted in the guide groove, a sludge outlet is provided on the outer wall of the higher end of the inner bottom surface of the sedimentation tank (18), and an inclined plate is provided on the outer wall of the sedimentation tank (18) at the sludge outlet.

6. A coal mine multi-stage sorting and washing device according to claim 5, characterized in that: The discharge inclined plate (2) is provided with a movable groove, a second mesh plate (13) is provided in the movable groove, a vibration motor (14) is fixedly connected to the inner bottom surface of the second mesh plate (13), a plurality of springs (15) are equidistantly provided on the inner bottom surface of the second mesh plate (13), a plurality of support plates corresponding to the bottom ends of the springs (15) are fixedly provided on the bottom surface of the discharge inclined plate (2), and a water collecting cover is provided on the bottom surface of the discharge inclined plate (2) at the second mesh plate (13).

7. A coal mine multi-stage sorting and washing device according to claim 6, characterized in that: A circulation pipe (16) is connected to the lower end of the bottom surface of the sedimentation tank (18), and a pump (17) is provided on the circulation pipe (16). The bottom end of the water collecting cover is connected to the circulation pipe (16), and one end of the circulation pipe (16) is connected to the upper end of the inner wall of one side of the tank body (1).

8. A coal mine multi-stage sorting and washing device according to claim 7, characterized in that: The spiral blade (11) is evenly provided with a plurality of micro-holes.

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