Coal mine belt conveyor tail float coal cleaning device

Abstract

The invention relates to the technical field of coal mine transportation, in particular to a coal mine belt conveyor tail float coal cleaning device which comprises a cleaning unit, a machine body, a first cleaning assembly arranged in the machine body and a second cleaning assembly arranged in the machine body, and the first cleaning assembly is located above the second cleaning assembly. The device has the beneficial effects that the dry fog mechanism and the air curtain generation mechanism are arranged at the joint of the upper-stage belt and the lower-stage belt, so that the problems of falling coal splashing and coal slime dripping generated at the conveying lap joint of the machine head and the machine tail are solved; and on the other hand, the scraper blade and the roller with the elastic function are arranged at the return belt of the device, and the air blowing mode is matched, so that the problem that part of fallen coal is accumulated on the return belt at the bottom of the belt conveyor is solved. Therefore, the working efficiency of the belt conveyor is improved, and the service life of the belt conveyor is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine transportation, and particularly to a floating coal cleaning device for the tail of a coal mine belt conveyor. Background Art

[0002] In the coal mine transportation operation underground in coal mines, belt conveyors play a crucial role and are commonly used equipment for realizing efficient coal mine transportation. However, during its long-term operation, it faces many problems that lead to the residue of floating coal at the tail.

[0003] In the prior art, during the long-term operation of belt conveyors, due to problems such as the accumulation of coal falling on the bottom return belt and the splashing of coal falling and the erosion of coal slime dripping at the conveying lap joints of the head and the tail, floating coal residues are likely to appear at the tail. These floating coals will not only affect the performance and efficiency of the conveyor, such as increasing the running resistance of the belt and reducing the conveying capacity, but may also cause safety hazards such as dust explosions due to the accumulation of coal powder, and at the same time, will shorten the service life of the conveyor. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a floating coal cleaning device for the tail of a coal mine belt conveyor, which solves the problems of coal falling splash and coal slime dripping generated at the conveying lap joints of the head and the tail by setting a dry fog mechanism and an air curtain generating mechanism on this device; on the other hand, by setting an elastic scraper and a roller at the return belt of this device and cooperating with the air blowing method, it solves the problem of partial accumulation of coal falling on the return belt at the bottom of the belt conveyor. It reduces the frequency of manual cleaning, efficiently and conveniently removes the residual coal powder on the conveyor belt, and avoids the accumulation of coal powder.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A floating coal cleaning device for the tail of a coal mine belt conveyor, which includes a cleaning unit and a machine body, a first cleaning component arranged inside the machine body, and a second cleaning component arranged inside the machine body, and the first cleaning component is located above the second cleaning component;

[0007] The first cleaning component is used for cleaning the accumulated coal falling on the return belt;

[0008] The second cleaning component is used for cleaning the coal falling splash and coal slime dripping at the conveying lap joint of the belt head and the tail.

[0009] As a preferred solution of the floating coal cleaning device at the tail of a coal mine belt conveyor described in the present invention, the second cleaning component includes a shell, a roller arranged inside the shell, a scraper arranged at the upper end of the roller, an air blowing pipe arranged at the front end of the scraper, an air blowing head arranged on the air blowing pipe, and a spray pipe arranged at the front end of the air blowing pipe.

[0010] As a preferred solution of the floating coal cleaning device at the tail of a coal mine belt conveyor described in the present invention, the scraper is arranged in a fishbone shape, the air blowing head is provided with several groups, and the air outlet direction of the air blowing head is facing the two sides of the scraper, the scraper and the roller are on the same central axis, and the spray pipe is fixedly connected to the spray head and is away from the air blowing head.

[0011] As a preferred solution of the floating coal cleaning device at the tail of a coal mine belt conveyor described in the present invention, the first cleaning component includes an air curtain generating mechanism, shock-absorbing plates symmetrically arranged on both sides of the interior of the machine body, and springs symmetrically arranged on both sides of the exterior of the shock-absorbing plates, and the end of the spring away from the shock-absorbing plate is fixedly connected to the machine body.

[0012] As a preferred solution of the floating coal cleaning device at the tail of a coal mine belt conveyor described in the present invention, the second cleaning component also includes a sewage suction pipe plugged into the shell, a slurry pump arranged away from the outside of the shell, a sewage discharge pipe plugged into the slurry pump, an air outlet pipe plugged into the shell, a fan arranged above the shell, a liquid storage tank arranged outside the shell, and a nozzle plugged into the spray pipe.

[0013] As a preferred solution of the floating coal cleaning device at the tail of a coal mine belt conveyor described in the present invention, wherein: a plurality of groups of protrusions are fixedly arranged on the shock absorbing plate.

[0014] As a preferred solution of the floating coal cleaning device at the tail of a coal mine belt conveyor described in the present invention, springs and sleeves sleeved on both ends of the springs are symmetrically arranged on the scraper and the roller, and the two groups of springs are fixedly connected to the shell at one end away from the scraper and the other end away from the sleeve respectively.

[0015] As a preferred solution of the floating coal cleaning device at the tail of a coal mine belt conveyor described in the present invention, the second cleaning component also includes a guide plate, a conveying port is arranged at one end close to the guide plate, a transverse conveyor belt is arranged at one end close to the conveying port, an oblique conveyor belt connected to the transverse conveyor belt, and a conveying outlet is connected to the oblique conveyor belt.

[0016] As a preferred embodiment of the floating coal cleaning device at the tail of a coal mine belt conveyor according to the present invention, the included angle between the guiding plate and the second cleaning assembly is set to 45 degrees, and a gap allowing small coal cinders to pass through quickly is left at the lower end of the guiding plate.

[0017] As a preferred embodiment of the floating coal cleaning device at the tail of a coal mine belt conveyor according to the present invention, it further includes a guiding hood, a breathable net disposed inside the guiding hood, and a dry fog dust suppression mechanism disposed at the upper end of the breathable net.

[0018] Advantages of the present invention: By arranging a dry fog mechanism and an air curtain generating mechanism at the connection between the upper belt and the lower belt, the present invention solves the problems of falling coal splashing and coal sludge dripping at the conveying lap joint of the head and the tail; on the other hand, by arranging a scraper and a roller with elastic functions at the return belt of the present device and cooperating with the air blowing method, the problem of partial coal falling accumulation on the return belt at the bottom of the belt conveyor is solved. The frequency of manual cleaning is reduced, the coal powder residue on the conveyor belt is efficiently and conveniently removed, and the accumulation of coal powder is avoided. Thereby, the working efficiency and service life of the belt conveyor are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of a floating coal cleaning device at the tail of a coal mine belt conveyor.

[0021] Figure 2 It is a schematic diagram of the structure of a floating coal cleaning device at the tail of a coal mine belt conveyor.

[0022] Figure 3 It is a structural diagram of the second cleaning assembly of a floating coal cleaning device at the tail of a coal mine belt conveyor.

[0023] Figure 4 It is a cutting diagram of the second cleaning assembly of a floating coal cleaning device at the tail of a coal mine belt conveyor.

[0024] Figure 5 It is a partial structural diagram of a floating coal cleaning device at the tail of a coal mine belt conveyor.

[0025] Figure 6 It is a partial structural diagram of a floating coal cleaning device at the tail of a coal mine belt conveyor.

[0026] Figure 7It is a partial structure diagram of a floating coal cleaning device for the tail of a coal mine belt conveyor.

[0027] Figure 8 It is a partial structure diagram of a floating coal cleaning device for the tail of a coal mine belt conveyor.

[0028] Figure 9 It is a partial structure diagram of a floating coal cleaning device for the tail of a coal mine belt conveyor.

[0029] Figure 10 It is an enlarged view of part A of a floating coal cleaning device for the tail of a coal mine belt conveyor. Specific implementation manners

[0030] To make the above objects, features, and advantages of the present invention more obvious and understandable, the specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings of the specification.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0032] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0033] Embodiment 1

[0034] Refer to Figures 1-9 , which is the first embodiment of the present invention. This embodiment provides a floating coal cleaning device for the tail of a coal mine belt conveyor, which can solve the problem of difficult cleaning of the partial coal accumulation on the return belt through the mutual cooperation of the scraper 103b and the roller 103a provided on the second cleaning component 103, combined with the air blowing method and the chemical action of spraying flocculant liquid.

[0035] Specifically, the cleaning unit 100 includes a body 101, a first cleaning component 102 disposed inside the body 101, and a second cleaning component 103 disposed inside the body 101. The first cleaning component 102 is located above the second cleaning component 103. The first cleaning component 102 is used to clean the coal accumulation on the return belt; the second cleaning component 103 is used to clean the material splash and coal mud dripping at the connection between the belt head and the tail conveyor.

[0036] Further, the second cleaning component 103 includes a housing 103f, a drum 103a disposed inside the housing 103f, a scraper 103b disposed at the upper end of the drum 103a, an air blowing pipe 103c disposed at the front end of the scraper 103b, an air blowing head 103c-1 disposed on the air blowing pipe, and a spraying pipe 103d disposed at the front end of the air blowing pipe 103c.

[0037] Further, the scraper 103b is arranged in a fishbone shape, there are several groups of air blowing heads 103c-1, and the air outlet directions of the air blowing heads 103c-1 face both sides of the scraper 103b. The scraper 103b and the drum 103a are on the same central axis. The spraying pipe 103d is fixedly connected to a spray head (103d-1) and is far away from the air blowing head 103c-1.

[0038] Further, springs 103b-1 are symmetrically arranged on the scraper 103b and the drum 103a, and sleeves 103a-1 are sleeved at both ends of the springs 103b-1. One ends of the two groups of springs 103b-1 far away from the scraper 103b and the ends far away from the sleeves 103a-1 are respectively fixedly connected to the housing 103f.

[0039] Further, the second cleaning component 103 further includes a sewage suction pipe 103g inserted into the housing 103f, a slurry pump 103g-1 disposed outside the housing 103f, a sewage discharge pipe 103g-2 inserted into the slurry pump 103g-1, an air blowing pipe 103c inserted into the housing 103f, a blower 103c-2 disposed above the housing 103f, a liquid storage tank 103d-2 disposed outside the housing 103f, and a spray head 103d-1 inserted into the spraying pipe 103d.

[0040] It should be noted that the mutual cooperation between the fishbone-shaped scraper 103b and the blow heads arranged in the same shape array on the air blowing pipe 103c can not only better clean and convey the slime, but also play a role in protecting the scraper 103b. The springs 103b-1 arranged on the scraper 103b and the springs 103b-1 arranged on the drum 103a are mainly used to protect the belt and can adapt to belts of different specifications and materials; the function of the drum 103a is to jack up the belt upward so that the belt can better contact the scraper 103b. The function of arranging the spray head at the front end of the scraper 103b is to enable the sprayed flocculant liquid to fully react with the slime 103d-1, so as to clean the slime more efficiently.

[0041] When in use, when there is coal falling on the return belt, the uncleaned coal slag on the belt will pass through the spray pipe 103d under the transportation of the belt. At this time, the spray pipe 103d will spray the liquid dissolved with flocculant downward to dilute and moisten the coal slime. After the action of the flocculant, the coal slime on the belt is easier to fall off. When passing through the scraper 103b, the scraper 103b cooperates with the roller 103a to scrape and absorb the coal slime on the belt. At this time, the air blowing head 103c-1 will blow high-pressure gas to the scraper 103b, so that the coal slime attached to the scraper 103b is blown out along both sides of the scraper 103b. When the coal sludge is blown along the scraper 103b to the inner wall of the second air blowing assembly 103, the suction pipe 103g plugged in this position will suck the coal sludge into the slurry pump 103g-1. After being processed by the slurry pump 103g-1, the processed coal sludge will be discharged into the ditch along the discharge pipe 103g-2.

[0042] Example 2

[0043] Reference Figures 1-10 , which is the second embodiment of the present invention, provides a floating coal cleaning device at the tail of a coal mine belt conveyor, which can solve the problem of material splashing and coal slime dripping at the overlap between the belt head and the tail conveyor by setting an air curtain generating mechanism 102a in the first cleaning component 102.

[0044] Specifically, the cleaning unit 100 includes a body 101, a first cleaning component 102 arranged inside the body 101, and a second cleaning component 103 arranged inside the body 101, the first cleaning component 102 is located above the second cleaning component 103; the first cleaning component 102 is used to clean the fallen coal accumulation on the return belt; the second cleaning component 103 is used to clean the falling material splashing and coal slime dripping at the overlap of the belt head and tail conveying.

[0045] Furthermore, the first cleaning component 102 includes an air curtain generating mechanism 102a, a shock absorbing plate 102b symmetrically arranged on both sides of the interior of the body 101, and a spring 103b-1 symmetrically arranged on both sides of the exterior of the shock absorbing plate 102b, and one end of the spring 103b-1 away from the shock absorbing plate 102b is fixedly connected to the body 101.

[0046] Furthermore, a plurality of groups of protrusions 102b-1 are fixedly disposed on the shock absorbing plate 102b.

[0047] Furthermore, it also includes a guide cover 101a, a breathable net 101a-1 disposed in the guide cover 101a, and a dry mist dust reduction mechanism 101b disposed at the upper end of the breathable net 101a-1.

[0048] It should be noted that the function of the guiding cover 101a is to connect the upper-level belt and the lower-level belt, enabling the coal blocks to be directionally conveyed to the lower-level belt and preventing the coal blocks from splashing everywhere during this process. The coal blocks on the upper-level belt will impact this device during the downward extension process. Through the interaction of the shock-absorbing plate 102b and the spring 103b-1, the damage to this device can be reduced, playing a role in protection and buffering. Additionally, several sharp protrusions 102b-1 are provided on the shock-absorbing plate 102b, and the protrusions 102b-1 break up larger coal blocks to prevent the coal blocks from damaging the belt due to their excessive weight.

[0049] During use, the coal blocks in the upper-level belt fall onto the shock-absorbing plate 102b of this device through the directional conveyance of the guiding cover 101a. The protrusions 102b-1 on the shock-absorbing plate 102b can break up larger coal blocks. After the above treatment, the broken coal blocks and coal slime will fall into the lower-level belt. At this time, the air curtain generating mechanism 102a blows air to gather the coal slime towards the center of the belt conveyor, keeping the coal slime from dripping when passing through the smooth section of the belt. After entering the conveying section, the coal slime will settle at the center of the belt under the action of gravity. Using the air curtain can also cool down the high-speed rolling belt.

[0050] Embodiment 3

[0051] Referring to Figures 1-10 This is the third embodiment of the present invention. This embodiment provides a floating coal cleaning device for the tail of a coal mine belt conveyor. By setting the air curtain generating mechanism 102a, it solves the problems of falling material splashing and coal slime dripping at the conveying lap joint between the head and the tail of the belt. Through the mutual cooperation of the scraper 10b and the roller 103a provided on the second cleaning component 103, combined with the air blowing method and the chemical action of spraying flocculant liquid, it solves the problem of difficult cleaning of the partial coal accumulation on the return belt.

[0052] Specifically, the cleaning unit 100 includes a machine body 101, a first cleaning component 102 arranged inside the machine body 101, and a second cleaning component 103 arranged inside the machine body 101. The first cleaning component 102 is located above the second cleaning component 103. The first cleaning component 102 is used to clean the coal accumulation on the return belt. The second cleaning component 103 is used to clean the falling material splashing and coal slime dripping at the conveying lap joint between the head and the tail of the belt.

[0053] Furthermore, the second cleaning component 103 includes a housing 103f, a roller 103a arranged inside the housing 103f, a scraper 103b arranged at the upper end of the roller 103a, an air blowing pipe 103c arranged at the front end of the scraper 103b, an air blowing head 103c-1 arranged on the air blowing pipe, and a spraying pipe 103d arranged at the front end of the air blowing pipe 103c.

[0054] Further, the scraping plate 103b is arranged in a fishbone shape. There are several groups of air blowing heads 103c-1, and the air outlet directions of the air blowing heads 103c-1 are facing the two sides of the scraping plate 103b. The scraping plate 103b and the roller 103a are on the same central axis. The spraying pipe 103d is fixedly connected to the spraying head (103d-1) and is far away from the air blowing head 103c-1.

[0055] Further, the first cleaning assembly 102 includes an air curtain generating mechanism 102a, shock-absorbing plates 102b symmetrically arranged on both sides inside the machine body 101, springs 103b-1 symmetrically arranged on both sides outside the shock-absorbing plates 102b, and one end of the spring (103b-1) far away from the shock-absorbing plate 102b is fixedly connected to the machine body 101.

[0056] Further, the second cleaning assembly 103 further includes a sewage suction pipe 103g inserted into the housing 103f, a slurry pump 103g-1 arranged on the outside far away from the housing 103f, a sewage discharge pipe 103g-2 inserted into the slurry pump 103g-1, an air blowing pipe 103c inserted into the housing 103f, a fan 103c-2 arranged above the housing 103f, a liquid storage tank 103d-2 arranged on the outside of the housing 103f, and a spraying head 103d-1 inserted into the spraying pipe 103d.

[0057] Further, several groups of protrusions 102b-1 are fixedly arranged on the shock-absorbing plate 102b.

[0058] Preferably, springs 103b-1 are symmetrically arranged on both the scraping plate 103b and the roller 103a, and sleeves 103a-1 sleeved on both ends of the springs 103b-1. One end of the two groups of springs 103b-1 far away from the scraping plate 103b and one end far away from the sleeve 103a-1 are respectively fixedly connected to the housing 103f.

[0059] Preferably, the second cleaning assembly 103 further includes a guide plate 103e, a conveying port 103f-1 is arranged at one end close to the guide plate 103e, a horizontal conveyor belt 103f-2 is arranged at one end close to the conveying port 103f-1, an inclined conveyor belt 103f-3 is butted against the horizontal conveyor belt 103f-2, and a conveying outlet 103f-4 is butted against the inclined conveyor belt 103f-3.

[0060] Preferably, the included angle between the guide plate 103e and the housing 103f is set to 45 degrees, and a gap allowing small coal cinders to quickly pass through is left at the lower end of the guide plate 103e.

[0061] Preferably, it further includes a guide cover 101a, a breathable net 101a-1 arranged in the guide cover 101a, and a dry fog dust suppression mechanism 101b arranged at the upper end of the breathable net 101a-1.

[0062] In use, first, when the coal blocks in the upper belt pass through the guiding cover 101a, the dry fog dust suppression mechanism 101b quickly suppresses dust to prevent flying dust and floating coal from falling on the roller 103a and the frame 101, where they will form coal slime after coming into contact with water. The large coal blocks and coal slime are directionally conveyed and fall onto the shock-absorbing plate 102b of this device. The protrusions 102b-1 on the shock-absorbing plate 102b can break up the larger coal blocks. After the above treatment, the broken coal blocks and coal slime will fall into the lower belt. At this time, the air curtain generating mechanism 102a blows air to gather the coal slime towards the center of the belt conveyor, keeping the coal slime from dripping when passing through the smooth section of the belt. After entering the conveying section, the coal slime will settle at the center of the belt under the action of gravity. Using the air curtain can also cool down the high-speed rolling belt. Secondly, when there is falling coal on the return belt, the un-cleaned coal slag on the belt will pass through the guiding plate 103e under the transportation of the belt. The guiding plate 103e will separate out the large coal slag, which will return to the transportation belt through the transportation of the horizontal conveyor belt 103f-2 and the inclined conveyor belt 103f-2. The small coal slag and the coal slime adhering to the return belt will continue to be conveyed through the gap under the guiding plate 103e. At this time, the spraying pipe 103d will spray downward the liquid dissolved with flocculant to dilute and moisten the coal slime. After the action of the flocculant, the coal slime on the belt is more likely to fall off at this time. When passing through the scraper 103b, the scraper 103b and the roller 103a cooperate with each other to scrape off the coal slime adsorbed on the belt. At this time, the air blowing head 103c-1 will blow high-pressure gas towards the scraper 103b, so that the coal slime adhering to the scraper 103b is blown out along both sides of the scraper 103b. When the coal slime is blown to the inner wall of the second air blowing assembly 103 close to the scraper 103b, the sewage suction pipe 103g inserted at this position will suck the coal slime into the slurry pump 103g-1. After being processed by the slurry pump 103g-1, the processed coal slime will be discharged into the sewer along the sewage discharge pipe 103g-2.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A coal mine belt conveyor tail floating coal cleaning device, characterized in that: include, A cleaning unit (100) comprises a body (101), a first cleaning component (102) arranged inside the body (101), and a second cleaning component (103) arranged inside the body (101), wherein the first cleaning component (102) is located above the second cleaning component (103); The first cleaning component (102) is used to clean the coal accumulation on the return belt; The second cleaning component (103) is used to clean the splashing of falling materials and the dripping of coal slime at the overlapping part of the conveying head and tail of the belt conveyor.

2. A coal mine belt conveyor tail floating coal cleaning device as claimed in claim 1, characterized in that: The second cleaning component (103) comprises a shell (103f), a roller (103a) arranged inside the shell (103f), a scraper (103b) arranged at the upper end of the roller (103a), an air blowing pipe (103c) arranged at the front end of the scraper (103b), an air blowing head (103c-1) arranged on the air blowing pipe (103c), and a spraying pipe (103d) arranged at the front end of the air blowing pipe (103c).

3. A coal mine belt conveyor tail floating coal cleaning device as claimed in claim 2, characterized in that: The scraper (103b) is arranged in a fishbone shape, the air blowing head (103c-1) is arranged in a plurality of groups, and the air outlet direction of the air blowing head (103c-1) is directly opposite to the two sides of the scraper (103b), the scraper (103b) and the roller (103a) are located on the same central axis, and the spray pipe (103d) is fixedly connected to the spray head (103d-1) and is away from the air blowing head (103c-1).

4. A coal mine belt conveyor tail floating coal cleaning device as claimed in claim 3, characterized in that: The first cleaning component (102) comprises an air curtain generating mechanism (102a), a shock absorbing plate (102b) symmetrically arranged on both sides of the interior of the machine body (101), and a spring (103b-1) symmetrically arranged on both sides of the exterior of the shock absorbing plate (102b), wherein one end of the spring (103b-1) away from the shock absorbing plate (102b) is fixedly connected to the machine body (101).

5. A coal mine belt conveyor tail floating coal cleaning device as claimed in claim 4, characterized in that: The second cleaning component (103) also includes a sewage suction pipe (103g) plugged into the shell (103f), a slurry pump (103g-1) arranged outside the shell (103f), a sewage discharge pipe (103g-2) plugged into the slurry pump (103g-1), an air blowing pipe (103c) plugged into the shell (103f), a fan (103c-2) arranged above the shell (103f), a liquid storage tank (103d-2) arranged outside the shell (103f), and a spray head (103d-1) plugged into the spray pipe (103d).

6. A coal mine belt conveyor tail floating coal cleaning device as claimed in claim 5, characterized in that: A plurality of groups of protrusions (102b-1) are fixedly arranged on the shock-absorbing plate (102b).

7. A coal mine belt conveyor tail floating coal cleaning device as claimed in claim 6, characterized in that: The scraper (103b) and the roller (103a) are symmetrically provided with springs (103b-1) and sleeves (103a-1) sleeved on both ends of the springs (103b-1), and two groups of springs (103b-1) are fixedly connected to the shell (103f) at one end away from the scraper (103b) and at one end away from the sleeve (103a-1), respectively.

8. A coal mine belt conveyor tail floating coal cleaning device as claimed in claim 7, characterized in that: The second cleaning component (103) further comprises a guide plate (103e), a conveying port (103f-1) provided at one end close to the guide plate (103e), a transverse conveying belt (103f-2) provided at one end close to the conveying port (103f-1), an oblique conveying belt (103f-3) connected to the transverse conveying belt (103f-2), and a conveying port (103f-4) connected to the oblique conveying belt (103f-3).

9. A coal mine belt conveyor tail floating coal cleaning device as claimed in claim 8, characterized in that: The included angle between the guide plate (103e) and the shell (103f) is set to 45 degrees, and a gap is left at the lower end of the guide plate (103e) to allow small coal slag to pass quickly.

10. A coal mine belt conveyor tail floating coal cleaning device as claimed in claim 9, characterized in that: It also comprises a guide cover (101a), an air-permeable net (101a-1) arranged in the guide cover (101a), and a dry mist dust reduction mechanism (101b) arranged at the upper end of the air-permeable net (101a-1).

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