Cleaning system for belt conveyor

Abstract

The invention discloses a cleaning system for a belt conveyor, relates to the technical field of belt conveyors, and solves the technical problems that residual materials on the surface of a transmission belt on the belt conveyor are cleaned and wasted, and abrasion of the transmission belt is aggravated by the residual materials on the surface. Comprising a belt conveyor, the belt conveyor comprises transmission rollers arranged at the top, the two transmission rollers are sleeved with a transmission belt, and material recycling equipment is arranged at the bottom of the transmission belt; by combining the wind and water cleaning device and the return stroke scraping device, the surface of the transmission belt can be cleaned in multiple cleaning modes, the cleaning degree of the surface of the transmission belt is increased, material residues on the surface of the transmission belt are reduced, abrasion between the transmission belt and a transmission roller is reduced, other materials can be conveniently conveyed by the transmission belt subsequently, and material doping is avoided; and the materials cleaned from the surface of the transmission belt are collected, material waste and environment influence caused by falling of the materials are avoided, the use stability of the belt conveyor is improved, and the service life is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of belt conveyors, in particular to a cleaning system for belt conveyors. Background Art

[0002] According to their conveying capacity, belt conveyors can be divided into heavy-duty belt conveyors such as mining belt conveyors and light-duty belt conveyors such as those used in electronic plastics, food and light industry, chemical and pharmaceutical industries. Belt conveyors have strong conveying capacity, long conveying distance, simple structure, easy maintenance, and can easily implement programmed control and automated operation.

[0003] The material residue and dust accumulation on the surface of some existing traditional belt conveyors will increase friction, increase energy consumption, and even affect the service life of the belt. In addition, the materials retained on the surface of the belt are not easy to recover, resulting in wasteful cleaning and causing a bad environment when left on site. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a cleaning system for a belt conveyor.

[0005] A cleaning system for a belt conveyor, comprising a belt conveyor, wherein the belt conveyor comprises a transmission roller arranged at the top, and a transmission belt is sleeved on two of the transmission rollers; a material recovery device is arranged at the bottom of the transmission belt, and the material recovery device comprises a wind and water cleaning device for cleaning the bottom of the transmission belt and a return scraping device located below the wind and water cleaning device;

[0006] The wind and water cleaning device comprises a mounting frame, a cleaning component is arranged inside the mounting frame, and the cleaning component comprises a water jet flushing member, a rubber alloy cleaning plate, a polyurethane cleaning plate and a wind knife plate which are sequentially installed inside the mounting frame;

[0007] The return scraping device comprises a conveyor belt horizontally located below the wind and water cleaning device.

[0008] Preferably, a pressure roller is horizontally arranged inside the mounting frame and is located above the cleaning member, and the pressure roller contacts the inner surface of the transmission belt.

[0009] Preferably, a pushing member is provided on the side of the mounting frame, and the pushing member includes side plates installed on the front and rear surfaces of the mounting frame, and rotating rods are provided inside the two side plates. A cylindrical cam is sleeved on the rotating rod, and a sliding rod is slidably provided in the arc groove on the circumferential surface of the cylindrical cam, and a pushing plate for cleaning the inner surface of the transmission belt is provided on the side of the sliding rod.

[0010] Preferably, one end of the rotating rod is connected to a driving motor, and a long limiting rod penetrating the sliding rod is provided between the two side plates.

[0011] Preferably, the return scraper device further comprises a return conveyor frame, a limit baffle is arranged on the top of the return conveyor frame, and a transmission motor for driving the conveyor belt to move is arranged on the right end of the return conveyor frame.

[0012] Preferably, a material cleaner located outside the transmission roller is provided at the right end of the belt conveyor, and the material cleaner includes a connecting rod, a crossbeam is provided on the connecting rod, and a scraper blade with a tip extending to the surface of the transmission belt is provided on the crossbeam. A fixed seat is provided between one end of the connecting rod and the belt conveyor, and the other end of the connecting rod is connected to an electric actuator.

[0013] Preferably, an extension member is provided on the inner surface of the scraper blade, and the extension member includes two fixing columns vertically fixed on the inner surface of the scraper blade, a mounting ring is sleeved on the fixing column, and the outer surface of the mounting ring is provided with an extension blade.

[0014] Preferably, the belt conveyor is provided with a roller brush cleaning device located on the left side of the Feng Shui cleaning device, and a blank section cleaning device is provided on the left side of the roller brush cleaning device. The roller brush cleaning device includes an inner shaft, and a cleaning roller brush in contact with the lower surface of the transmission belt is sleeved on the inner shaft. A rotating motor is connected to the rear end of the inner shaft, and side frames supporting the inner shaft are provided at the front and rear ends of the inner shaft, and an adjustment cylinder for driving the side frames to rise and fall is provided on the inner surface of the belt conveyor.

[0015] Preferably, a lifting cylinder is provided on the inner wall of the belt conveyor, a side mounting plate is provided at the lower end of the lifting cylinder, a mounting rod is provided between the two side mounting plates, and an inner scraper contacting the inner surface of the transmission belt is sleeved on the mounting rod.

[0016] Preferably, a hopper is provided at the right end of the belt conveyor, and the right end of the return scraper device extends into the interior of the hopper.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The present invention combines the wind and water cleaning device with the return scraper device, and can use a variety of cleaning methods to clean the surface of the transmission belt, thereby increasing the cleaning degree of the transmission belt surface, reducing the residual material on the transmission belt surface, reducing the wear between the transmission belt and the transmission roller, and facilitating the subsequent transportation of other materials by the transmission belt without material mixing. The material cleaned from the surface of the transmission belt can be collected without causing material waste or falling to the ground to affect the environment, thereby increasing the stability of the belt conveyor and extending its service life.

[0019] (2) The material sweeper designed in the present invention can initially scrape and clean the residual materials on the surface of the transmission belt, and cooperate with the hopper to collect the cleaned materials. At the same time, the cleaning range of the edge of the transmission belt is expanded, and the situation where the edge of the transmission belt cannot be touched and cleaned will not occur, thereby increasing the cleaning range and comprehensiveness of the transmission belt.

[0020] (3) The present invention combines a roller brush cleaning device with a gap cleaning device to clean the inner and outer surfaces of the transmission belt at the same time, and finally clean the inner and outer surfaces of the transmission belt to reduce the residual material particles on the surface, thereby reducing the wear of the particles on the contact surface of the transmission belt and the transmission roller, thereby increasing the service life of the transmission belt and improving the cleanliness of the surface of the transmission belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the belt conveyor cleaning system of the present invention;

[0022] Figure 2 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the wind water cleaning device;

[0023] Figure 3 For the present invention Figure 2 A schematic diagram of the top view of the cleaning component;

[0024] Figure 4 For the present invention Figure 1 A schematic diagram of the top view of the mid-return scraper device;

[0025] Figure 5 For the present invention Figure 2 The structural schematic diagram of the middle pusher component;

[0026] Figure 6 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the medium material cleaner;

[0027] Figure 7 For the present invention Figure 6 A schematic diagram of the rear view structure of the middle extension member;

[0028] Figure 8 For the present invention Figure 1 A schematic diagram of the side structure of the middle roller brush cleaning device;

[0029] Fig. 9 For the present invention Figure 1 A schematic diagram of the side structure of the hollow section cleaning device;

[0030] In the figure: 100, belt conveyor; 101, transmission roller; 102, hopper; 103, transmission belt; 200, wind and water cleaning device; 201, mounting frame; 202, cleaning component; 2021, water jet flushing member; 2022, rubber alloy cleaning plate; 2023, polyurethane cleaning plate; 2024, wind knife plate; 203, pressure roller; 204, pushing component; 2041, side plate; 2042, rotating rod; 2043, driving motor; 2044, cylindrical cam; 2045, sliding rod; 2046, pushing plate; 2047, limiting long rod; 300, return scraper device; 301, return conveyor frame; 302, conveyor belt; 303, Transmission motor; 304, limit baffle; 400, material sweeper; 401, connecting rod; 402, electric actuator; 403, crossbeam; 404, fixed seat; 405, pin shaft; 406, scraper blade; 407, extension member; 4071, fixed column; 4072, extension blade; 4073, mounting ring; 4074, limit ring; 500, roller brush cleaning device; 501, inner shaft; 502, cleaning roller brush; 503, rotating motor; 504, side frame; 505, adjustment cylinder; 600, empty section cleaning device; 601, side mounting plate; 602, mounting rod; 603, inner scraper; 604, lifting cylinder; 700, visual detection device. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figure 1 - Figure 5The present application provides a cleaning system for a belt conveyor, including a belt conveyor 100, wherein the belt conveyor 100 includes a transmission roller 101 arranged at the top, and a transmission belt 103 is sleeved on the two transmission rollers 101: a material recovery device is arranged at the bottom of the transmission belt 103, and the material recovery device includes a wind and water cleaning device 200 for cleaning the bottom of the transmission belt 103 and a return scraper device 300 located below the wind and water cleaning device 200. By combining the wind and water cleaning device 200 and the return scraper device 300, a variety of cleaning methods can be used to clean the surface of the transmission belt 103, thereby increasing the degree of cleaning of the surface of the transmission belt 103, reducing the residual material on the surface of the transmission belt 103, facilitating the subsequent transportation of other materials by the transmission belt 103, and preventing material doping. Moreover, the materials cleaned from the surface of the transmission belt 103 are collected, and material waste and falling to the ground to affect the environment are not caused, thereby increasing the use stability of the belt conveyor 100 and extending its service life;

[0034] The wind and water cleaning device 200 includes a mounting frame 201, a cleaning component 202 is arranged inside the mounting frame 201, and the cleaning component 202 includes a water jet flushing member 2021, a rubber alloy cleaning plate 2022, a polyurethane cleaning plate 2023 and a wind blade plate 2024 which are sequentially installed inside the mounting frame 201. The cleaning component 202 can be used to wash, scrape and clean the material on the surface of the transmission belt 103, thereby improving the degree of cleaning of the material on the surface of the transmission belt 103. The water jet flushing member 2021 includes a water pipe and a plurality of water washing nozzles arranged on the surface of the water pipe, and the water pipe is connected to a water tank arranged outside;

[0035] The return scraper device 300 includes a conveyor belt 302 horizontally located below the wind and water cleaning device 200 . The conveyor belt 302 moves to facilitate the conveyance of materials scraped from the transmission belt 103 .

[0036] In this embodiment, preferably, a pressure roller 203 is horizontally arranged inside the mounting frame 201 and is located above the cleaning member 202. The pressure roller 203 contacts the inner surface of the transmission belt 103. The pressure roller 203 can be supported from inside the transmission belt 103, so that the cleaning member 202 will not shake when cleaning the transmission belt 103.

[0037] In this embodiment, preferably, a push member 204 is provided on the side of the mounting frame 201, and the push member 204 includes a side plate 2041 installed on the front and rear surfaces of the mounting frame 201, and a rotating rod 2042 is provided inside the two side plates 2041. A cylindrical cam 2044 is sleeved on the rotating rod 2042, and a sliding rod 2045 is slidably provided in the arc groove on the circumferential surface of the cylindrical cam 2044. The arc groove and the sliding rod 2045 are slidably matched, and can rotate with the cylindrical cam 2044, and can drive the sliding rod 2045 to slide in the arc groove. The push plate 2046 moves forward and backward, pushing the material trapped on the inner surface of the transmission belt 103 outward and dropping it onto the conveyor belt 302. A push plate 2046 for cleaning the inner surface of the transmission belt 103 is arranged on the side of the sliding rod 2045. A driving motor 2043 is connected to one end of the rotating rod 2042. A limiting long rod 2047 penetrating the sliding rod 2045 is arranged between the two side plates 2041. The limiting long rod 2047 can play a guiding and limiting role on the sliding rod 2045, so that the sliding rod 2045 can move forward and backward conveniently.

[0038] In this embodiment, preferably, the return scraper device 300 also includes a return conveyor frame 301, a limit baffle 304 is arranged on the top of the return conveyor frame 301, which can shield the material on the conveyor belt 302, and a transmission motor 303 is arranged on the right end of the return conveyor frame 301 to drive the conveyor belt 302 to move.

[0039] In summary, when the belt conveyor 100 is working, the transmission belt 103 moves. When the transmission belt 103 moves to the wind and water cleaning device 200, the water jet flushing member 2021, the rubber alloy cleaning plate 2022, the polyurethane cleaning plate 2023 and the wind knife plate 2024 are used to flush, scrape and clean the surface of the transmission belt 103 moved here with high-pressure wind, so that the residual material is peeled off from the transmission belt 103. While cleaning the transmission belt 103, the pressure roller 203 is supported from the inner surface of the transmission belt 103, so that there will be no shaking when cleaning the outer surface of the transmission belt 103, which is convenient for always contacting the surface of the transmission belt 103 for cleaning. At the same time, the driving motor 2043 works to drive the rotating rod 2042 and the cylindrical cam 2044 to rotate, and the arc groove on the cylindrical cam 2044 rotates. The arc groove and the sliding rod 2045 slide together, and the sliding rod 2045 moves back and forth along the arc groove The limiting long rod 2047 moves, driving the pushing plate 2046 to move forward and backward in contact with the inner surface of the transmission belt 103, pushing the materials trapped on the inner surface of the transmission belt 103 forward and backward and dropping them onto the conveyor belt 302, which is convenient for subsequent recycling. The cleaned materials fall on the conveyor belt 302, and the transmission motor 303 drives the rotating roller inside the return conveyor frame 301 to rotate, and the rotating roller drives the conveyor belt 302 to move, and the materials on the conveyor belt 302 are conveyed to the right until they are sent into the hopper 102. During the whole process, the materials on the surface of the transmission belt 103 are completely cleaned to increase the cleaning degree, and the cleaned materials can be collected to avoid material waste. The material cleaner 400, the roller brush cleaning device 500 and the empty section cleaning device 600 at the rear can reduce material adhesion, thereby avoiding the wear of the materials on the transmission belt 103 and the transmission roller 101, thereby improving the service life.

[0040] Example 2

[0041] Reference Figure 6 and Figure 7 , which is the second embodiment of the present invention.

[0042] In this embodiment, preferably, a material cleaner 400 is provided at the right end of the belt conveyor 100 and is located outside the transmission roller 101. By providing the material cleaner 400, the residual material on the surface of the transmission belt 103 can be initially scraped and cleaned, and the cleaned material can be collected in cooperation with the hopper 102. At the same time, the cleaning range of the edge of the transmission belt 103 is expanded, and the edge of the transmission belt 103 will not be touched and cannot be cleaned, thereby increasing the cleaning range and comprehensiveness of the transmission belt 103. 0 includes a connecting rod 401, a crossbeam 403 is sleeved on the connecting rod 401, a scraper blade 406 with a tip extending to the surface of the transmission belt 103 is arranged on the crossbeam 403, and a pin shaft 405 is arranged between the scraper blade 406 and the crossbeam 403, a fixing seat 404 is arranged between one end of the connecting rod 401 and the belt conveyor 100, and the other end of the connecting rod 401 is connected to an electric actuator 402, so as to facilitate changing the angle of the scraper blade 406 and facilitate the tip of the scraper blade 406 to fit the surface of the transmission belt 103.

[0043] In this embodiment, preferably, an extension member 407 is provided on the inner surface of the scraper blade 406. By using the extension member 407, the extension blade 4072 can be used to further clean the area where the scraper blade 406 cannot reach the edge of the transmission belt 103 without affecting the scraper blade 406 in cleaning the surface of the transmission belt 103. The extension member 407 includes two fixing columns 4071 vertically fixed to the inner surface of the scraper blade 406, and two limiting rings 4074 are screwed on the fixing columns 4071 and are respectively located on both sides of the mounting ring 4073. The mounting ring 4073 is sleeved on the fixing columns 4071, and the outer surface of the mounting ring 4073 is provided with an extension blade 4072. The tip of the extension blade 4072 contacts the surface of the transmission belt 103, and the angle of the extension blade 4072 with the vertical direction is adjustable, so as to facilitate the change of the position where the outer end of the extension blade 4072 extends to the edge of the transmission belt 103.

[0044] In summary, when in use, the angles of the two extension blades 4072 can be adjusted according to the width of the transmission belt 103, thereby changing the position of the outer end of the extension blade 4072, allowing the mounting ring 4073 to rotate around the fixing column 4071. When the angle of the extension blade 4072 is appropriate, the two limit rings 4074 are rotated to make the limit rings 4074 contact with the mounting ring 4073, and the friction resistance is used to limit and fix the angles of the mounting ring 4073 and the extension blade 4072. The electric actuator 402 works to drive the connecting rod 401 to deflect, changing the angle of the scraper blade 406, until Until the tip of the scraper blade 406 is in contact with the outer surface of the transmission belt 103, and the tip of the extended blade 4072 is in contact with the outer surface of the transmission belt 103, as the transmission belt 103 moves, the material is scraped off by the scraper blade 406 and falls downward into the hopper 102 along the curved surface of the scraper blade 406. At the same time, the edge of the transmission belt 103 that is not touched can be scraped by the extended blade 4072, and the scraped material falls into the hopper 102 along the inclined extended blade 4072, thereby expanding the cleaning range of the transmission belt 103 and increasing the convenience of material cleaning.

[0045] Example 3

[0046] Reference Figure 8 and Fig. 9 , which is the third embodiment of the present invention.

[0047] In this embodiment, preferably, a roller brush cleaning device 500 is provided inside the belt conveyor 100 and is located on the left side of the Feng Shui cleaning device 200, and a gap cleaning device 600 is provided on the left side of the roller brush cleaning device 500. The roller brush cleaning device 500 includes an inner shaft 501, and a cleaning roller brush 502 in contact with the lower surface of the transmission belt 103 is sleeved on the inner shaft 501, and the cleaning roller brush 502 can contact the outer surface of the transmission belt 103. A rotating motor 503 is connected to the rear end of the inner shaft 501, and side frames 504 supporting the inner shaft 501 are provided at the front and rear ends of the inner shaft 501. An adjusting cylinder 505 for driving the side frame 504 to rise and fall is provided on the inner surface of the belt conveyor 100. The height of the side frame 504 and the cleaning roller brush 502 can be changed by adjusting the cylinder 505 to facilitate fitting the surface of the transmission belt 103.

[0048] In this embodiment, preferably, a visual inspection device 700 is also provided on the inner surface of the transmission belt 103, which can detect the contact degree between the cleaning roller brush 502 and the transmission belt 103. After the cleaning roller brush 502 is worn, the contact degree between the cleaning roller brush 502 and the transmission belt 103 is adjusted by the adjustment cylinder 505.

[0049] In this embodiment, preferably, a lifting cylinder 604 is provided on the inner wall of the belt conveyor 100, and the lifting cylinder 604 can change the height of the inner scraper 603 to facilitate the inner scraper 603 to contact the inner surface of the transmission belt 103. A side mounting plate 601 is provided at the lower end of the lifting cylinder 604, and a mounting rod 602 is provided between the two side mounting plates 601. The mounting rod 602 is provided with an inner scraper 603 that contacts the inner surface of the transmission belt 103. The inner scraper 603 is located on the inner side of the transmission belt 103, which is convenient for contact and cleaning of the inner surface of the transmission belt 103.

[0050] In this embodiment, preferably, a hopper 102 is provided at the right end of the belt conveyor 100, and the right end of the return scraper device 300 extends into the interior of the hopper 102, so as to facilitate the transportation of the cleaned materials to the hopper 102 for collection, avoid the materials falling directly on the ground and being wasted, and facilitate recycling.

[0051] In summary, when in use, according to the thickness and slackness of the transmission belt 103, the lifting cylinder 604 and the adjusting cylinder 505 can be operated, and the two can change the height of the inner scraper 603 and the cleaning roller brush 502 respectively, so as to facilitate the two to contact the inner and outer surfaces of the transmission belt 103. As the transmission belt 103 moves to the roller brush cleaning device 500 and the empty section cleaning device 600, the rotating motor 503 drives the cleaning roller brush 502 to rotate, and the cleaning roller brush 502 continuously rubs the outer surface of the transmission belt 103. After the outer surface is cleaned, the transmission belt 103 continues to move, and the lower tip of the inner scraper 603 contacts the inner surface of the transmission belt 103. As the transmission belt 103 moves, the particles attached to the inner surface of the transmission belt 103 can be scraped and accumulated on one side of the inner scraper 603. The cleaned transmission belt 103 cooperates with the transmission roller 101 to reduce the wear caused by the particles on the contact surface of the two, thereby increasing the service life of the transmission belt 103 and improving the cleanliness of the surface of the transmission belt 103.

[0052] Example 4

[0053] This embodiment is obtained by combining Embodiment 1, Embodiment 2 and Embodiment 3.

[0054] During use, as the belt conveyor 100 works, the transmission belt 103 moves, and the material sweeper 400 is first used to scrape off the residual material on the surface of the transmission belt 103 and drop it into the hopper 102 for collection. After the preliminary cleaning, the transmission belt 103 moves to the Feng Shui cleaning device 200 for more comprehensive cleaning, and the material on the inner surface of the transmission belt 103 is pushed back and forth by the pushing member 204 and falls into the hopper 102, and the material cleaned by the Feng Shui cleaning device 200 falls on the return scraper device 300 and moves to the hopper 102 for recovery. Finally, the roller brush cleaning device 500 and the empty section cleaning device 600 are used to perform the final cleaning of the inner and outer surfaces of the transmission belt 103 to keep the surface of the transmission belt 103 clean and facilitate the transmission belt 103 to continue to transport materials next time. The automatic control of all equipment takes the intelligent PLC control box as the control core to achieve interlocking start and stop with the transmission belt 103.

[0055] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A cleaning system for a belt conveyor, characterized in that: The belt conveyor (100) comprises a transmission roller (101) arranged at the top, and a transmission belt (103) is sleeved on two of the transmission rollers (101); a material recovery device is arranged at the bottom of the transmission belt (103), and the material recovery device comprises a wind and water cleaning device (200) for cleaning the bottom of the transmission belt (103) and a return scraping device (300) located below the wind and water cleaning device (200); The wind and water cleaning device (200) comprises a mounting frame (201), a cleaning component (202) is arranged inside the mounting frame (201), and the cleaning component (202) comprises a water jet flushing member (2021), a rubber alloy cleaning plate (2022), a polyurethane cleaning plate (2023), and a wind knife plate (2024) which are sequentially mounted inside the mounting frame (201); The return scraper device (300) comprises a conveyor belt (302) horizontally located below the wind and water cleaning device (200).

2. A cleaning system for a belt conveyor according to claim 1, characterized in that: A pressure roller (203) is horizontally arranged inside the mounting frame (201) and is located above the cleaning member (202), and the pressure roller (203) is in contact with the inner surface of the transmission belt (103).

3. A cleaning system for a belt conveyor according to claim 1, characterized in that: A pushing member (204) is arranged on the side of the mounting frame (201), and the pushing member (204) comprises side plates (2041) mounted on the front and rear surfaces of the mounting frame (201), and rotating rods (2042) are arranged inside the two side plates (2041), and a cylindrical cam (2044) is sleeved on the rotating rod (2042), and a sliding rod (2045) is slidably arranged in an arc groove on the circumferential surface of the cylindrical cam (2044), and a pushing plate (2046) for cleaning the inner surface of the transmission belt (103) is arranged on the side of the sliding rod (2045).

4. A cleaning system for a belt conveyor according to claim 3, characterized in that: One end of the rotating rod (2042) is connected to a driving motor (2043), and a limiting long rod (2047) penetrating the sliding rod (2045) is arranged between the two side plates (2041).

5. A cleaning system for a belt conveyor according to claim 1, characterized in that: The return scraper device (300) further comprises a return conveyor frame (301), a limit baffle (304) is arranged on the top of the return conveyor frame (301), and a transmission motor (303) for driving the conveyor belt (302) to move is arranged at the right end of the return conveyor frame (301).

6. A cleaning system for a belt conveyor according to claim 1, characterized in that: The right end of the belt conveyor (100) is provided with a material cleaner (400) located outside the transmission roller (101), and the material cleaner (400) comprises a connecting rod (401), a crossbeam (403) is sleeved on the connecting rod (401), and a scraping blade (406) with a tip extending to the surface of the transmission belt (103) is provided on the crossbeam (403), a fixing seat (404) is provided between one end of the connecting rod (401) and the belt conveyor (100), and the other end of the connecting rod (401) is connected to an electric actuator (402).

7. A cleaning system for a belt conveyor according to claim 6, characterized in that: An extension component (407) is arranged on the inner surface of the scraper blade (406), and the extension component (407) comprises two fixing columns (4071) fixed vertically on the inner surface of the scraper blade (406), a mounting ring (4073) is sleeved on the fixing columns (4071), and an extension blade (4072) is arranged on the outer surface of the mounting ring (4073).

8. A cleaning system for a belt conveyor according to claim 1, characterized in that: The belt conveyor (100) is provided with a roller brush cleaning device (500) located on the left side of the wind and water cleaning device (200), and a blank cleaning device (600) is provided on the left side of the roller brush cleaning device (500). The roller brush cleaning device (500) comprises an inner shaft (501), and a cleaning roller brush (502) in contact with the lower surface of the transmission belt (103) is sleeved on the inner shaft (501). A rotating motor (503) is connected to the rear end of the inner shaft (501), and side frames (504) supporting the inner shaft (501) are provided at the front and rear ends of the inner shaft (501), and an adjustment cylinder (505) for driving the side frame (504) to rise and fall is provided on the inner surface of the belt conveyor (100).

9. A cleaning system for a belt conveyor according to claim 8, characterized in that: The inner wall of the belt conveyor (100) is provided with a lifting cylinder (604), the lower end of the lifting cylinder (604) is provided with a side mounting plate (601), a mounting rod (602) is provided between the two side mounting plates (601), and the mounting rod (602) is sleeved with an inner scraper (603) in contact with the inner surface of the transmission belt (103).

10. A cleaning system for a belt conveyor according to claim 1, characterized in that: A hopper (102) is provided at the right end of the belt conveyor (100), and the right end of the return scraper device (300) extends into the interior of the hopper (102).

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