Impurity removal device for separating raw coal
By designing the arc-shaped hook and drive components in the impurity removal device, the problems of impurity accumulation and separation of crushed slag and sand were solved, realizing automatic external discharge collection and efficient impurity removal, and improving safety and energy saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-17
AI Technical Summary
Existing rotary hook-type debris removers tend to accumulate debris inside the machine when hooking it up, lack a direct external discharge and collection structure, and lack the ability to separate crushed slag and mud from coal blocks, resulting in unsatisfactory debris removal effects.
A debris removal device was designed, comprising a debris removal box, a filter plate, a rotating shaft, a drive motor, and a debris cleaning and external discharge collection component. The device uses an arc-shaped debris removal hook to hook debris, and uses a leveraged vertical guide reciprocating lifting drive component and an elastic vibration auxiliary discharge component to achieve the external discharge collection of debris and the filtration and screening of crushed slag and silt. A single drive is used to achieve hooking and cleaning, vibration guide discharge, and hard vibration filtration and screening.
It achieves automatic external discharge and collection of debris, improves the impurity removal effect, reduces the safety risks of manual operation, and has energy-saving effects.
Smart Images
Figure CN223996653U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of impurity removal equipment technology, specifically to an impurity removal device for separating raw coal. Background Technology
[0002] A coal mine is a rationally excavated space created by humans when mining coal-rich geological strata. It typically includes roadways, shafts, and mining faces. Coal is the most important solid fuel and a type of combustible organic rock. It is formed by the gradual accumulation of thick layers of lush vegetation that grew over a certain geological period in a suitable geological environment, buried underwater or in silt, and undergoing natural coalification over a long geological period. During the transportation of raw coal after mining and crushing, impurities often appear, such as straw mats, rags, hemp ropes, woven bags, silt, and crushed slag, which need to be removed and cleaned.
[0003] Rotary hook-type debris removers are commonly used in coal conveying processes to remove debris such as straw mats, rags, hemp ropes, and woven bags. Their principle is to use multiple rotating hooks to hook these materials from the coal. However, they still have the following shortcomings: 1. The hooked debris tends to accumulate inside the machine, lacking a structure for direct external collection. Personnel are required to remove the debris from inside the machine, making it inconvenient for them to safely remove the debris from the outside; 2. They lack an integrated structure for separating crushed slag and sand from the coal. A significant amount of crushed slag and sand remains during coal transport, resulting in unsatisfactory debris removal. Therefore, this application proposes a debris removal device for separating raw coal to address the aforementioned problems. Utility Model Content
[0004] The purpose of this invention is to provide a purification device for separating raw coal, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a purification device for separating raw coal, comprising a purification device body disposed between two raw coal belt conveyors, the purification device body comprising a purification box with an opening on the upper right side, four support legs fixedly connected to the bottom of the purification box in a rectangular shape, a feed hole on the left inner wall of the purification box, a discharge hole on the right inner wall of the purification box, a filter plate fixedly installed and inclined between the discharge hole and the feed hole, the bottom inner side of the purification box having a conical opening structure, the right side of the raw coal belt conveyor on the left extending into the feed hole, and the raw coal belt conveyor on the right being located to the lower right of the discharge hole; the inclined filter plate is used to tilt and guide the input coal blocks to the right onto the raw coal belt conveyor on the right, and to filter out slag, mud and sand impurities in the coal blocks;
[0006] A rotating shaft is rotatably mounted on the inner front wall of the cleaning box. A drive motor with an output shaft fixedly connected to the rear end of the rotating shaft is fixedly mounted on the rear side of the cleaning box. Multiple sets of arc-shaped cleaning hooks are fixedly connected at equal intervals on the outer side of the rotating shaft. Each set of arc-shaped cleaning hooks consists of multiple hooks arranged in a ring at equal intervals on the outer side of the rotating shaft. A debris cleaning and discharge collection assembly for cleaning the multiple arc-shaped cleaning hooks is installed on the cleaning box. A leveraged vertical guide reciprocating lifting drive assembly is fixedly connected to the front side of the cleaning box and rotatably mounted to the bottom of the front end of the rotating shaft. A lifting shaft extending into the cleaning box is fixedly connected to the rear end of the leveraged vertical guide reciprocating lifting drive assembly. L-shaped thin rods are fixedly connected to the bottom front and bottom rear sides of the lifting shaft. The top front, top rear, and two L-shaped thin rods of the lifting shaft are also fixedly connected. Elastic shock-absorbing auxiliary discharge components are fixedly connected to the bottom inner wall; the drive motor is used to drive the rotating shaft to rotate, which in turn drives multiple arc-shaped impurity removal hooks to rotate. The rotation of these hooks agitates the coal blocks in the guide and removes and cleans impurities such as straw mats, rags, hemp ropes, and woven bags from the coal blocks. The impurity cleaning and discharge collection component separates the hooked impurities and discharges them to the outside as the arc-shaped impurity removal hooks rotate to the right. The leveraged vertical guide reciprocating lifting drive component drives the lifting shaft and L-shaped thin rod to move up and down reciprocally when the rotating shaft rotates. The elastic shock-absorbing auxiliary discharge component shocks the impurity cleaning and discharge collection component and the filter plate respectively when the lifting shaft and L-shaped thin rod move up and down reciprocally, causing them to be in a hard vibration state, so as to better guide the impurities or coal blocks to the right.
[0007] Preferably, the debris cleaning and external collection assembly includes a guide plate fixedly connected between the front and rear inner walls of the debris removal box and inclinedly arranged. The top left side of the guide plate has multiple opening holes, and multiple arc-shaped debris removal hooks located on the right side are respectively located in the corresponding opening holes. The front and rear inner walls of the opening holes are slidably in contact with the front and rear sides of the corresponding arc-shaped debris removal hooks, respectively. A debris collection box with openings on both the top and left sides is fixedly installed on the right side of the debris removal box, and the debris collection box is located on the right side of the guide plate.
[0008] Preferably, the lever-type vertical guide reciprocating lifting drive assembly includes a fixed cover fixedly installed on the front side of the impurity removal box and with an opening on the rear side. The front end of the rotating shaft extends into the fixed cover. Two vertical guide rods are fixedly connected between the top inner wall and the bottom inner wall of the fixed cover. The same lifting seat is slidably sleeved on the two vertical guide rods. The rear side of the lifting seat is fixedly connected to the front end of the lifting shaft. The same traction diagonal rod is rotatably installed between the front side of the lifting seat and the bottom of the front end of the rotating shaft.
[0009] Preferably, the elastic shock-absorbing auxiliary assembly includes an outer tube with a sealed bottom end. The top front side, top rear side, and bottom inner wall of the L-shaped thin rod are respectively fixedly connected to the bottom end of the corresponding outer tube. An inner rod is slidably sleeved inside the outer tube. An impact block is fixedly connected to the top end of the inner rod. A spring is fixedly connected between the bottom end of the inner rod and the bottom inner wall of the corresponding outer tube. The two upper impact blocks are located below the guide plate and cooperate with its bottom. The two lower impact blocks are located below the filter plate and cooperate with its bottom.
[0010] Preferably, a rectangular perforation is provided on the inner front wall of the impurity removal box, and the lifting shaft is located inside the rectangular perforation and does not contact the inner wall of the rectangular perforation.
[0011] Preferably, the filter plate has vertical guide holes on both the top front side and the top rear side, and the inner wall of the vertical guide hole is slidably connected to the outer side of the corresponding L-shaped thin rod.
[0012] Preferably, the distance between two adjacent arc-shaped cleaning hooks is larger than the size of the coal block.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. Through the combination of the impurity removal box, filter plate, rotating shaft, drive motor and impurity cleaning and discharge collection components, impurities in coal blocks can be hooked and separated during coal block conveying;
[0015] 2. Through the combination of the set debris cleaning and discharge collection component, the leveraged vertical guide reciprocating lifting drive component, the elastic shock discharge component, the lifting shaft and the L-shaped thin rod, the hooked debris can be tilted outward and vibrated to collect it. It can also automatically filter and screen the crushed slag and mud with hard vibration, improving the debris discharge effect and the coal block impurity removal effect. Moreover, there is no need for personnel to remove the debris from the inside of the machine, which makes it convenient for personnel to directly and safely remove the debris from the outside, improving the safety of use.
[0016] 3. In addition, the single-drive integrated system achieves hooking and cleaning, vibration guiding and screening, and hard vibration filtration and screening without the need for a separate multi-functional drive device, resulting in high energy efficiency.
[0017] This utility model features a series of structures that facilitate the removal and separation of impurities from coal blocks during coal transport. The removed impurities are collected by an outward vibrating guide, and the entire process automatically integrates hard vibration filtration and screening of crushed slag and mud, improving the impurity removal effect. Furthermore, it eliminates the need for personnel to remove impurities from inside the machine, allowing for safe external removal and enhancing operational safety. The single-drive, integrated system for removal, cleaning, vibration guidance, and hard vibration filtration eliminates the need for separate multi-functional drive equipment, resulting in significant energy savings. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a purification device for separating raw coal according to the present invention;
[0019] Figure 2 This is a three-dimensional structural diagram of the impurity removal device body for separating raw coal, as proposed in this utility model.
[0020] Figure 3 for Figure 2 A schematic diagram of the left-side view structure;
[0021] Figure 4 for Figure 2 A top-view sectional structural diagram;
[0022] Figure 5 This is a cross-sectional view of the fixed cover structure of a purification device for separating raw coal proposed in this utility model;
[0023] Figure 6 This is a cross-sectional structural schematic diagram of a purification device for separating raw coal proposed in this utility model;
[0024] Figure 7 for Figure 6 A magnified structural diagram of part A in the diagram.
[0025] In the diagram: 100, Raw coal belt conveyor; 1, Impurity removal box; 101, Feed hole; 102, Discharge hole; 103, Filter plate; 2, Rotating shaft; 201, Arc-shaped impurity removal hook; 202, Drive motor; 3, Guide plate; 301, Digging hole; 302, Impurity collection box; 4, Fixing cover; 401, Vertical guide rod; 402, Lifting seat; 403, Pulling diagonal rod; 404, Rectangular perforation; 5, Lifting shaft; 501, L-shaped thin rod; 502, Outer tube; 503, Inner rod; 504, Impact block; 505, Spring. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] like Figures 1 to 7As shown in the figure, the present embodiment proposes a purification device for separating raw coal, including a purification device body disposed between two raw coal belt conveyors 100. The purification device body includes a purification box 1 with an opening on the upper right side. The bottom of the purification box 1 is rectangular and fixedly connected with four support legs. A feed hole 101 is opened on the left inner wall of the purification box 1, and a discharge hole 102 is opened on the right inner wall of the purification box 1. A filter plate 103 is fixedly installed in the purification box 1 and inclined between the discharge hole 102 and the feed hole 101. The bottom inner side of the purification box 1 has a conical opening structure. The right side of the raw coal belt conveyor 100 on the left extends into the feed hole 101, and the raw coal belt conveyor 100 on the right is located to the lower right of the discharge hole 102. The inclined filter plate 103 is used to tilt and guide the coal blocks to the right when they are input to the raw coal belt conveyor 100 on the right side, and to filter the slag and sand impurities in the coal blocks.
[0028] A rotating shaft 2 is rotatably mounted on the front inner wall of the impurity removal box 1. A circular through hole is formed on the front inner wall of the impurity removal box 1, and a first bearing is fixedly fitted inside the through hole. The inner ring of the first bearing is fixedly fitted to the outer side of the rotating shaft 2, thus achieving the effect of rotating the rotating shaft 2. A drive motor 202 with an output shaft fixedly connected to the rear end of the rotating shaft 2 is fixedly mounted on the rear side of the impurity removal box 1. Multiple sets of arc-shaped impurity removal hooks 201 are fixedly connected at equal intervals on the outer side of the rotating shaft 2. Each set of arc-shaped impurity removal hooks 201 consists of multiple hooks arranged in a ring at equal intervals on the outer side of the rotating shaft 2. The impurity removal box 1 is equipped with tools for removing multiple arc-shaped impurity removal hooks 201. The 01 cleaned debris collection and discharge assembly has a front-mounted, lever-driven vertical guide reciprocating lifting drive assembly that is rotatably mounted to the bottom front end of the rotating shaft 2. A lifting shaft 5 extending into the debris collection box 1 is fixedly connected to the rear end of the lever-driven vertical guide reciprocating lifting drive assembly. A rectangular perforation 404 is provided on the inner front wall of the debris collection box 1. The lifting shaft 5 is located within the rectangular perforation 404 and does not contact the inner wall of the rectangular perforation 404, thus allowing the lifting shaft 5 to pass through and providing conditions for its vertical movement. L-shaped thin rods 501 are fixedly connected to the bottom front and bottom rear sides of the lifting shaft 5. A filter plate 10 is also included. Vertical guide holes are provided on the top front and top rear sides of the lifting shaft 5. The inner wall of the vertical guide hole is slidably connected to the outer side of the corresponding L-shaped thin rod 501, so as to allow the L-shaped thin rod 501 to pass through and guide it vertically. Elastic shock-absorbing auxiliary components are fixedly connected to the top front, top rear and bottom inner walls of the two L-shaped thin rods 501. The distance between two adjacent arc-shaped cleaning hooks 201 is larger than the size of the coal block. The drive motor 202 is used to drive the rotating shaft 2 to rotate, and the rotating shaft 2 drives multiple arc-shaped cleaning hooks 201 to rotate. The rotation of multiple arc-shaped cleaning hooks 201 guides the coal block. The coal block is moved and debris such as straw mats, rags, hemp ropes, and woven bags are hooked and cleaned from the coal block. The debris cleaning and external discharge collection component is used to separate the hooked debris and guide it outward as the arc-shaped debris removal hook 201 rotates to the right. The leveraged vertical guide reciprocating lifting drive component is used to drive the lifting shaft 5 and L-shaped thin rod 501 to move up and down reciprocally when the rotating shaft 2 rotates. The elastic shock auxiliary discharge component is used to shock the debris cleaning and external discharge collection component and the filter plate 103 respectively when the lifting shaft 5 and L-shaped thin rod 501 move up and down reciprocally, so as to make them in a hard vibration state, so as to better guide the debris or coal block to the right.
[0029] Specifically, the debris collection and discharge assembly includes a guide plate 3 fixedly connected between the front and rear inner walls of the debris removal box 1 and inclinedly arranged. Multiple opening holes 301, all open on the left side, are provided on the top left side of the guide plate 3. Multiple arc-shaped debris removal hooks 201 located on the right side are respectively located within the corresponding opening holes 301. The front and rear inner walls of the opening holes 301 slide and contact the front and rear sides of the corresponding arc-shaped debris removal hooks 201, respectively. A debris collection box 302, open on both the top and left sides, is fixedly installed on the right side of the debris removal box 1, located on the right side of the guide plate 3. The guide plate 3, opening holes 301, and debris collection box 302 cooperate to... When the debris hooked by the arc-shaped debris removal hook 201 rotates to the corresponding position of the right-side tapping hole 301, the front and rear inner walls of the tapping hole 301 slide and fit against the front and rear sides of the corresponding arc-shaped debris removal hook 201, respectively. This makes the tapping hole 301 fit the size of the arc-shaped debris removal hook 201, preventing the debris from moving downwards with it. As the arc-shaped debris removal hook 201 continues to rotate downwards through the corresponding tapping hole 301, the guide plate 3 squeezes and separates the debris on the arc-shaped debris removal hook 201. The separated debris is then slid to the right and guided into the debris collection box 302 via the inclined guide plate 3, achieving the effect of separating the hooked debris and guiding it outwards for collection.
[0030] Furthermore, the leveraged vertical guide reciprocating lifting drive assembly includes a fixed cover 4 fixedly installed on the front side of the impurity removal box 1 with an open rear side. The front end of the rotating shaft 2 extends into the fixed cover 4. Two vertical guide rods 401 are fixedly connected between the top inner wall and the bottom inner wall of the fixed cover 4. The same lifting seat 402 is slidably sleeved on the two vertical guide rods 401. The top of the lifting seat 402 has two guide holes that are slidably sleeved on the outer side of the corresponding vertical guide rods 401, which serve to guide the vertical sliding of the lifting seat 402. The rear side of the lifting seat 402 is fixedly connected to the front end of the lifting shaft 5. The same traction diagonal rod 403 is rotatably installed between the front side of the lifting seat 402 and the bottom front end of the rotating shaft 2. The bottom front end of the rotating shaft 2 and the bottom front end of the lifting seat 402 are both fixed. A pin is fixedly connected to the traction rod 403. Circular holes are opened at the top and bottom of the front side of the traction rod 403. A second bearing is fixedly fitted inside the circular hole. The inner ring of the second bearing is fixedly fitted to the outer side of the corresponding pin, which achieves the effect of rotating and installing the traction rod 403. The fixed cover 4, vertical guide rod 401, lifting seat 402 and traction rod 403 cooperate to drive the left end of the traction rod 403 to swing and reciprocate up and down when the rotating shaft 2 rotates. The traction rod 403 pulls and drives the lifting seat 402 to slide up and down on the two vertical guide rods 401. The lifting seat 402 drives the lifting shaft 5 to move up and down. The lifting shaft 5 drives the L-shaped thin rod 501 to move up and down. The effect of using the rotational power of the rotating shaft 2 to drive the lifting shaft 5 and the L-shaped thin rod 501 to move up and down is achieved.
[0031] Furthermore, the elastic shock-absorbing auxiliary assembly includes an outer tube 502 with a sealed bottom end. The top front side, top rear side of the lifting shaft 5, and the bottom inner wall of the L-shaped thin rod 501 are respectively fixedly connected to the bottom end of the corresponding outer tube 502. An inner rod 503 is slidably sleeved inside the outer tube 502. An impact block 504 is fixedly connected to the top end of the inner rod 503. A spring 505 is fixedly connected between the bottom end of the inner rod 503 and the bottom inner wall of the corresponding outer tube 502. The two upper impact blocks 504 are located below the guide plate 3 and cooperate with its bottom. The two lower impact blocks 504 are located below the filter plate 103 and cooperate with its bottom. The outer tube 502, inner rod 503, impact blocks 504, and springs 505 work together to create a shock-absorbing effect when the lifting shaft 5 and the L-shaped thin rod 501 move up and down. The four outer tubes 502 move up and down in an integrated manner. The outer tubes 502 drive the impact blocks 504 to move up and down in an integrated manner through the corresponding springs 505 and inner rods 503. The two upper impact blocks 504 intermittently impact the bottom of the guide plate 3 when they move up and down, and the two lower impact blocks 504 intermittently impact the bottom of the filter plate 103 when they move up and down. The springs 505 elastically support the corresponding inner rods 503 and outer tubes 502, so as to achieve the effect of adaptive elastic avoidance of impact and prevent impact jamming. This achieves the effect of integrated automatic impact on the guide plate 3 and the filter plate 103, so that they are in a hard vibration state with a high frequency micro-amplitude hard vibration force. Under this hard vibration force, the debris or coal blocks are better guided to the right, improving the guiding effect.
[0032] The usage method of this embodiment is as follows: When using the impurity removal device for separating raw coal, start the drive motor 202 to drive the rotating shaft 2 to rotate. The rotating shaft 2 drives multiple arc-shaped impurity removal hooks 201 to rotate. When the raw coal belt conveyor 100 on the left feeds coal blocks to the right through the feed hole 101, the coal blocks fall to the right onto the inclined filter plate 103. The inclined filter plate 103 guides the coal blocks to the right. At this time, the multiple rotating arc-shaped impurity removal hooks 201 move the guided coal blocks and hook and clean up impurities such as straw mats, rags, hemp ropes, and woven bags in the coal blocks. The impurities hooked by the arc-shaped impurity removal hooks 201 follow their movement. When rotated to the corresponding right-side hole 301, the front and rear inner walls of the hole 301 slide and fit against the front and rear sides of the corresponding arc-shaped cleaning hook 201, respectively, so that the hole 301 is adapted to the size of the arc-shaped cleaning hook 201 and cannot allow the debris to follow it downward. When the arc-shaped cleaning hook 201 continues to rotate downward through the corresponding hole 301, the guide plate 3 squeezes and separates the debris on the arc-shaped cleaning hook 201. The separated impurities slide to the right through the inclined guide plate 3 and are guided into the collection box 302, thus achieving the effect of separating the hooked debris and guiding it outward for collection.
[0033] When the rotating shaft 2 rotates, it also causes the left end of the traction rod 403 to swing and reciprocate up and down. The traction rod 403 pulls and causes the lifting seat 402 to slide up and down on the two vertical guide rods 401. The lifting seat 402 drives the lifting shaft 5 to move up and down. The lifting shaft 5 drives the L-shaped thin rod 501 to move up and down. When the lifting shaft 5 and the L-shaped thin rod 501 move up and down, they drive the four outer tubes 502 to move up and down as a whole. The outer tubes 502 are driven by the corresponding springs 505 and inner rods 503 in sequence. The impact blocks 504 move up and down repeatedly, intermittently impacting the bottom of the guide plate 3 when the two upper impact blocks 504 move up and down, and intermittently impacting the bottom of the filter plate 103 when the two lower impact blocks 504 move up and down. The springs 505 provide elastic support between the corresponding inner rods 503 and outer tubes 502, achieving an adaptive elastic avoidance effect during impact, preventing jamming, and realizing an integrated automatic impact effect on the guide plate 3 and the filter plate 103, causing them to enter a state of hard vibration. It has a high-frequency, low-amplitude hard vibration force. Under this hard vibration force, the guide plate 3 can better guide and discharge impurities to the right. The filter plate 103, utilizing hard vibration, can effectively filter the crushed slag and sand in the coal. The filtered slag and sand are discharged downwards through the bottom of the impurity removal box 1. A box for collecting slag can be placed below the impurity removal box. The coal, after being guided and impurity removed to the right, is discharged through the discharge hole 102 to the raw coal belt conveyor 100 on the right side for further conveying, thus achieving the desired effect. The machine effectively removes and evicts such as straw mats, rags, hemp ropes, and woven bags from coal blocks, tilting and vibrating them outwards. This eliminates the need for personnel to remove the debris from inside the machine, allowing for safe and direct removal from the outside, thus improving safety. Furthermore, the machine automatically integrates the removal and evicting of crushed slag and mud during the process, enhancing the impurity removal effect. The single-drive system integrates removal, cleaning, vibration, and filtration, eliminating the need for separate multi-functional drive units and resulting in significant energy savings.
[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A purification device for separating raw coal, comprising a purification device body disposed between two raw coal belt conveyors (100), characterized in that: The main body of the impurity removal device includes an impurity removal box (1) with an opening on the upper right side. The bottom of the impurity removal box (1) is rectangular and fixedly connected with four support legs. The inner wall of the left side of the impurity removal box (1) is provided with a feed hole (101), and the inner wall of the right side of the impurity removal box (1) is provided with a discharge hole (102). A filter plate (103) is fixedly installed in the impurity removal box (1) and inclined between the discharge hole (102) and the feed hole (101). The bottom of the inner side of the impurity removal box (1) is a conical opening structure. The right side of the raw coal belt conveyor (100) located on the left side extends into the feed hole (101), and the raw coal belt conveyor (100) on the right side is located to the lower right of the discharge hole (102). A rotating shaft (2) is rotatably mounted on the inner front wall of the cleaning box (1). A drive motor (202) with an output shaft fixedly connected to the rear end of the rotating shaft (2) is fixedly mounted on the rear side of the cleaning box (1). Multiple sets of arc-shaped cleaning hooks (201) are fixedly connected at equal intervals on the outer side of the rotating shaft (2). Each set of arc-shaped cleaning hooks (201) consists of multiple hooks and is fixedly connected at equal intervals in a ring on the outer side of the rotating shaft (2). The cleaning box (1) is equipped with a debris cleaning and discharge collection device for cleaning the multiple arc-shaped cleaning hooks (201). The assembly includes a lifting shaft (5) that extends into the impurity collection box (1). An L-shaped thin rod (501) is fixedly connected to the front side of the impurity collection box (1) and is rotatably installed at the bottom of the front end of the rotating shaft (2). An elastic shock auxiliary assembly is fixedly connected to the front side of the top, the rear side of the lifting shaft (5) and the bottom inner wall of the two L-shaped thin rods (501).
2. The impurity removal device for separating raw coal according to claim 1, characterized in that: The debris cleaning and external collection assembly includes a guide plate (3) fixedly connected between the front and rear inner walls of the debris removal box (1) and inclined. The top left side of the guide plate (3) has multiple opening holes (301) with open left sides. Multiple arc-shaped debris removal hooks (201) located on the right side are respectively located in the corresponding opening holes (301). The front and rear inner walls of the opening holes (301) are slidably in contact with the front and rear sides of the corresponding arc-shaped debris removal hooks (201). A debris collection box (302) with open top and left sides is fixedly installed on the right side of the debris removal box (1). The debris collection box (302) is located on the right side of the guide plate (3).
3. The impurity removal device for separating raw coal according to claim 1, characterized in that: The lever-type vertical guide reciprocating lifting drive assembly includes a fixed cover (4) fixedly installed on the front side of the impurity removal box (1) and with an opening on the rear side. The front end of the rotating shaft (2) extends into the fixed cover (4). Two vertical guide rods (401) are fixedly connected between the top inner wall and the bottom inner wall of the fixed cover (4). The same lifting seat (402) is slidably sleeved on the two vertical guide rods (401). The rear side of the lifting seat (402) is fixedly connected to the front end of the lifting shaft (5). The same traction diagonal rod (403) is rotatably installed between the front side of the lifting seat (402) and the bottom of the front end of the rotating shaft (2).
4. The impurity removal device for separating raw coal according to claim 2, characterized in that: The elastic shock-absorbing auxiliary assembly includes an outer tube (502) with a sealing structure at the bottom. The top front side, top rear side of the lifting shaft (5) and the bottom inner wall of the L-shaped thin rod (501) are respectively fixedly connected to the bottom end of the corresponding outer tube (502). An inner rod (503) is slidably sleeved inside the outer tube (502). An impact block (504) is fixedly connected to the top of the inner rod (503). A spring (505) is fixedly connected between the bottom end of the inner rod (503) and the bottom inner wall of the corresponding outer tube (502). The two upper impact blocks (504) are located below the guide plate (3) and cooperate with its bottom. The two lower impact blocks (504) are located below the filter plate (103) and cooperate with its bottom.
5. The impurity removal device for separating raw coal according to claim 1, characterized in that: A rectangular perforation (404) is provided on the inner front wall of the cleaning box (1), and the lifting shaft (5) is located inside the rectangular perforation (404) and does not contact the inner wall of the rectangular perforation (404).
6. The impurity removal device for separating raw coal according to claim 1, characterized in that: The filter plate (103) has vertical guide holes on its top front side and top rear side, and the inner wall of the vertical guide holes is slidably connected to the outer side of the corresponding L-shaped thin rod (501).
7. The impurity removal device for separating raw coal according to claim 1, characterized in that: The distance between two adjacent arc-shaped cleaning hooks (201) is larger than the size of the coal block.