Conveying belt cleaning system

Abstract

The invention discloses a conveying belt cleaning system, and relates to the technical field of conveying belt cleaning, the conveying belt cleaning system comprises a conveying belt cleaning box, a sewage collection pool, a purification main machine and a buffer water tank, the conveying belt cleaning box is used for cleaning a conveying belt, the sewage collection pool is used for collecting sewage from the conveying belt cleaning box, and the purification main machine is used for purifying the sewage. The purification main machine is used for treating and purifying sewage from the sewage collection pool, and the temporary storage water tank is used for temporarily storing clean water purified by the purification main machine and supplying the clean water to the conveying belt cleaning tank; the conveyor belt cleaning box is used for cleaning the return working face of the conveyor belt, sewage after cleaning is collected by the conveyor belt cleaning box and led into the sewage collecting pool, the sewage from the sewage collecting pool is treated and purified through the purification main machine, and then the purified sewage is stored in the buffer water tank and finally supplied to the conveyor belt cleaning box again. The water is recycled, so that the water is recycled, the environment is protected, and the water resource is saved.

Description

Technical Field

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

[0002] Conveyor belts, also known as transport belts, are composite products of rubber, fiber, metal, or plastic and fabric used to carry and transport materials. Conveyor belts are widely used in cement, coking, metallurgy, chemical industry, steel and other industries where the conveying distance is short and the conveying volume is small.

[0003] During the conveying process, the conveyor belt will have residues left by the transported objects on its surface, which will contaminate the surface of the conveyor belt. The accumulated residues will also cause wear on the surface of the conveyor belt, accelerating the damage of the conveyor belt. Therefore, a cleaning device is required to clean the conveyor belt.

[0004] The traditional way to clean a conveyor belt is to use a water spray pipe installed at the unloading point of the conveyor belt head to spray the return working surface of the conveyor belt, and then clean it with a sweeper. The direct discharge of sewage after spraying will pollute the environment. In addition, since the conveyor belt continues to work, it needs to be sprayed continuously, resulting in a large amount of water resource waste.

[0005] In view of this, a conveyor belt cleaning system is urgently needed. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention solves the problems with the following technical structure.

[0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] A conveyor belt cleaning system comprises: a conveyor belt cleaning box, a sewage collection tank, a purification host and a buffer water tank, wherein the conveyor belt cleaning box is used to clean the conveyor belt, the sewage collection tank is used to collect sewage from the conveyor belt cleaning box, the purification host is used to process and purify the sewage from the sewage collection tank, and the buffer water tank is used to buffer the clean water purified by the purification host and supply clean water to the conveyor belt cleaning box.

[0009] A further feature is that

[0010] The conveyor belt cleaning box includes a frame, on which a head roller, a high-pressure flushing pipe, a sweeper mechanism, an air knife mechanism and a water collecting tray are arranged, the water collecting tray is arranged below the head roller, the high-pressure flushing pipe, the sweeper mechanism and the air knife mechanism, the water collecting tray is connected to the sewage collection tank through a pipeline, the high-pressure flushing pipe is connected to the cache water tank through a pipeline, one end of the conveyor belt is wound around the head roller, and the high-pressure flushing pipe, the sweeper mechanism and the air knife mechanism are arranged below the conveyor belt in sequence from one end of the head roller.

[0011] The sweeper mechanism includes a crossbar and a plurality of scraper assemblies, wherein the crossbar is horizontally arranged above the water collection tray;

[0012] A plurality of scraper assemblies are sequentially arranged on the cross bar along the axial direction of the cross bar, and the scraper assembly comprises a scraper with a blade facing the conveyor belt.

[0013] The scraper assembly also includes a mounting seat, a screw, a nut, a mounting shaft and a knife seat, the mounting seat is arranged on the cross bar, a mounting plate is arranged in the mounting seat, the mounting seat is provided with a straight groove on both sides of the mounting plate, the two ends of the mounting shaft are respectively slidably arranged in the straight groove, one end of the screw is threadedly connected to the mounting plate, and the other end passes through the mounting shaft, the nut is sleeved on the screw, and the nut is arranged on the side of the mounting shaft away from the mounting plate, and the length direction of the straight groove is consistent with the axial direction of the screw;

[0014] The knife seat is arranged on the mounting shaft, and the scraper is arranged on the knife seat.

[0015] The mounting shaft is provided with a torsion spring, the two ends of the torsion spring abut against the inner side of the knife seat, and the side of the knife seat away from the torsion spring abuts against the mounting seat.

[0016] The scraper assembly also includes two connecting seats and two pull rods. Slide plates are provided at both ends of the cross bar. Slide rails extending in the vertical direction are provided on the two connecting seats. The two slide plates are respectively slidably provided on the slide rails of the two connecting seats. The two pull rods are slidably provided on the connecting seats. The bottom end of the pull rod is connected to the end of the cross bar. The axial direction of the pull rod is consistent with the extension direction of the slide rail. A second spring is provided on the pull rod. The second spring provides a thrust for the pull rod to move upward.

[0017] It also includes a fan mechanism, which includes a casing and a vortex high-pressure fan arranged in the casing, and the air outlet pipe of the vortex high-pressure fan is connected to the air inlet pipe of the wind knife mechanism.

[0018] The purification host includes an integrated box, in which a pH adjustment coagulation reaction tank unit, an inclined tube sedimentation unit, a dosing unit, an air flotation unit, an activated carbon adsorption unit and a spiral stack sludge dehydration unit are arranged; the dosing unit is used to add reagents to the pH adjustment coagulation reaction tank unit, the inclined tube sedimentation unit is used to perform sludge sedimentation on the sewage from the pH adjustment coagulation reaction tank unit, the air flotation unit is used to perform impurity treatment on the supernatant from the inclined tube sedimentation unit, the spiral stack sludge dehydration unit is used to dehydrate and separate the flocculent sludge from the inclined tube sedimentation unit, and the activated carbon adsorption unit is used to remove COD from the clean water from the air flotation unit.

[0019] The pH adjustment coagulation reaction tank unit comprises a pH adjustment module and a coagulation reaction module.

[0020] The inclined tube sedimentation unit comprises a primary sedimentation unit for sedimentating sewage from the pH adjustment coagulation reaction tank unit and a secondary sedimentation unit for re-precipitating the supernatant from the primary sedimentation unit.

[0021] The above structure of the present invention can achieve the following beneficial effects:

[0022] The return working surface of the conveyor belt is cleaned by the conveyor belt cleaning box, and the sewage after cleaning is collected by the conveyor belt cleaning box and led to the sewage collection pool. The sewage from the sewage collection pool is purified by the purification host, and then the purified sewage is stored in the buffer water tank, and finally supplied to the conveyor belt cleaning box again for reuse, thereby realizing the recycling of water, protecting the environment and saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the conveyor belt cleaning box in this embodiment;

[0024] Figure 2 Schematic diagram of the structure of the sweeper mechanism in this embodiment;

[0025] Figure 3 Schematic diagram of the structure of the scraper assembly in this embodiment;

[0026] Figure 4 This is a schematic diagram of the structure of a portion of the scraper assembly in this embodiment;

[0027] Figure 5 This is a schematic diagram of the structure of the connection socket in this embodiment;

[0028] Figure 6 Schematic diagram of the structure of the fan mechanism in this embodiment;

[0029] Figure 7 It is a schematic diagram of the structure of the purification host in this embodiment.

[0030] In the figure: 1. head roller; 2. high-pressure flushing pipe; 3. sweeper mechanism; 31. cross bar; 311. slide plate; 32. scraper; 33. mounting seat; 331. mounting plate; 332. I-shaped groove; 34. screw; 35. nut; 36. mounting shaft; 361. torsion spring; 37. knife seat; 38. connecting seat; 39. pull rod; 391. second spring; 4. wind knife mechanism; 5. water collection tray; 6. casing; 7. integrated box; 71. PH adjustment coagulation reaction tank unit; 72. inclined tube sedimentation unit; 73. dosing unit; 74. flotation unit; 75. activated carbon adsorption unit; 76. spiral sludge dewatering unit. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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 should fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0033] The following is combined with Figure 1-7 This application is described in further detail.

[0034] refer to Figure 1-7 A conveyor belt cleaning system shown in the figure includes: a conveyor belt cleaning box, a sewage collection tank, a purification host and a cache water tank. The conveyor belt cleaning box is used to clean the conveyor belt, the sewage collection tank is used to collect sewage from the conveyor belt cleaning box, the purification host is used to process and purify the sewage from the sewage collection tank, and the cache water tank is used to cache the clean water purified by the purification host and supply clean water to the conveyor belt cleaning box. In this way, the return working surface of the conveyor belt is cleaned by the conveyor belt cleaning box, and the sewage after cleaning is collected by the conveyor belt cleaning box and led to the sewage collection tank. The sewage from the sewage collection tank is processed and purified by the purification host, and then the purified sewage is stored in the cache water tank, and finally supplied to the conveyor belt cleaning box again for reuse, thereby realizing the recycling of water, protecting the environment, and saving water resources.

[0035] refer to Figure 1As shown, the conveyor belt cleaning box specifically includes a frame, on which a head roller 1, a high-pressure flushing pipe 2, a sweeper mechanism 3, an air knife mechanism 4 and a water collecting tray 5 are arranged. The water collecting tray 5 is arranged below the head roller 1, the high-pressure flushing pipe 2, the sweeper mechanism 3 and the air knife mechanism 4. The water collecting tray 5 is connected to the sewage collection tank through a pipeline, and the high-pressure flushing pipe 2 is connected to the buffer water tank through a pipeline. One end of the conveyor belt is wound around the head roller 1, and the high-pressure flushing pipe 2, the sweeper mechanism 3 and the air knife mechanism 4 are sequentially arranged below the conveyor belt from one end of the head roller 1. The conveyor belt is wound around the head roller 1. The return conveyor belt is flushed through a high-pressure flushing pipe 2 (the flushing pipe 2 is provided with a number of nozzles facing the conveyor belt to form a water knife), and then the remaining water stains on the return surface of the conveyor belt are cleaned through a sweeper mechanism 3. Finally, the moisture on the surface of the conveyor belt is removed through an air knife mechanism 4, thereby ensuring that the surface of the conveyor belt is dry after cleaning and will not affect subsequent material transportation. In order to avoid splashing of flushing water during high-pressure flushing, a protective cover can be set on the frame to wrap the cleaning end of the conveyor belt, and a water collecting tray 5 is set at the bottom to collect flushing water, and then the sewage 1 is discharged into the sewage collection tank through a pipeline.

[0036] Further optimization is that, in order to improve the cleaning effect, multiple high-pressure flushing pipes 2 and sweeper mechanisms 3 can be set, for example, two water jets (high-pressure flushing pipes 2) and three sweeper mechanisms 3 and one air knife mechanism 4 are set. The return belt containing sticky material is first washed by the first water jet, and the water jet disperses and floats the sticky material and then passes through the first sweeper mechanism 3 to directly remove 90% of the sticky material on the return conveyor belt. This is followed by a second water jet to completely rinse away the trace amount of sticky material. There are a large number of flushing water droplets on the surface of the conveyor belt, which are removed by the second sweeper mechanism 3, and then the third sweeper removes water vapor again. At this time, there is no obvious water on the surface, and only a certain amount of moisture remains on the surface of the conveyor belt. Finally, there is an air knife mechanism 4 to remove moisture from the surface of the conveyor belt.

[0037] Further optimization is that Figure 1 As shown, in order to ensure the stable operation of the conveyor belt, a number of auxiliary rollers (such as Figure 1 A and B), the conveyor belt passes through several auxiliary rollers on its return journey to improve the stability of the conveyor belt's return journey.

[0038] refer to Figure 2-Figure 5As shown, the sweeper mechanism 3 specifically includes a cross bar 31 and a plurality of scraper assemblies. The cross bar 31 is horizontally arranged above the water collecting tray 5; the plurality of scraper assemblies are sequentially arranged on the cross bar 31 along the axial direction of the cross bar 31, and the scraper assembly includes a scraper 32 with a blade facing the conveyor belt. The scrapers 32 of the plurality of scraper assemblies are sequentially arranged below the return working surface of the conveyor belt to scrape off moisture and residues from the return working surface of the conveyor belt passing through, and each scraper 32 is independently installed for easy replacement and maintenance.

[0039] refer to Figure 3-Figure 4As shown, the outer contact surface of the conveyor belt is subjected to long-term extrusion and friction by the scraper 32 and the material, which will cause the surface of the conveyor belt to harden and slip during transportation, accelerating the aging of the conveyor belt carrying surface. In order to reduce the damage of the scraper 32 to the conveyor belt, the scraper assembly also includes a mounting seat 33, a screw rod 34, a nut 35, a mounting shaft 36 and a knife seat 37. The mounting seat 33 is arranged on the cross bar 31, and a mounting plate 331 is arranged in the mounting seat 33. The mounting seat 33 is provided with a straight groove 332 on both sides of the mounting plate 331. The two ends of the mounting shaft 36 are respectively slidably arranged in the straight groove 332. One end of the screw rod 34 is threadedly connected to the mounting plate 331, and the other end passes through the mounting plate 331. The shaft 36 and the nut 35 are sleeved on the screw rod 34, and the nut 35 is arranged on the side of the installation shaft 36 away from the installation plate 331, and the length direction of the straight groove 332 is consistent with the axial direction of the screw rod 34; the knife seat 37 is arranged on the installation shaft 36, and the scraper 32 is arranged on the knife seat 37. In this way, when in use, multiple scraper assemblies are strung on the cross bar 31 through the limiting holes on the installation seat 33, and the limiting ribs on the cross bar 31 ensure that the directions of multiple scrapers 32 are consistent. By passing the installation shaft 36 on the screw rod 34 (the axial direction of the installation shaft 36 is perpendicular to the axial direction of the screw rod 34), the installation shaft 36 can be rotated to move between the two straight grooves 33 2, the height of the knife seat 37 is adjusted to achieve the purpose of adjusting the height of the scraper 32, so as to adapt to the cleaning work of the return working surface of the conveyor belt at different heights, that is, the scraper 32 can be lifted and lowered, and a torsion spring 361 is arranged on the mounting shaft 36, the two ends of the torsion spring 361 abut against the inner side of the knife seat 37, and the side of the knife seat 37 away from the torsion spring 361 abuts against the mounting seat 33. When installing, it is preferred to face the mounting side of the torsion spring 361 toward the side of the return movement direction of the conveyor belt. When the conveyor belt moves, the material residue on the surface of the conveyor belt is scraped off by the scraper 32. Since the knife seat 37 is rotatably arranged on the mounting seat 1, when the return working surface of the conveyor belt is uneven During adjustment, if the horizontal height of the return working surface of the conveyor belt becomes lower or encounters a material that is firmly adhered, the scraper 32 is subjected to greater resistance, causing the scraper 32 to rotate to the side of the return working surface of the conveyor belt (compressing the torsion spring 361), thereby achieving adaptive adjustment or avoidance. If the horizontal height of the return working surface of the conveyor belt becomes higher, the resistance encountered by the scraper 3 becomes smaller, and the elastic force of the torsion spring causes the scraper 32 to rotate to the side away from the return working surface of the conveyor belt, thereby achieving compensation and ensuring the cleaning effect of the conveyor belt. In this way, the scraper 32 has the function of adapting itself according to the situation of the return working surface of the conveyor belt, causing less damage to the surface of the conveyor belt and extending the service life of the conveyor belt.

[0040] refer to Figure 2 and Figure 5As shown, in order to facilitate the installation of the scraper assembly, the scraper assembly also includes two connecting seats 38 and two pull rods 39. Both ends of the cross bar 31 are provided with slide plates 311. The two connecting seats 38 are provided with slide rails extending in the vertical direction. The two slide plates 311 are respectively slidably arranged on the slide rails of the two connecting seats 38. The two pull rods 39 are slidably arranged on the connecting seats 38. The bottom end of the pull rod 39 is connected to the end of the cross bar 31. The axial direction of the pull rod 39 is consistent with the extension direction of the slide rail. The pull rod 39 is sleeved with a second spring 391. The second spring 39 1 provides an upward thrust for the pull rod 39, so that the scraper assembly as a whole has adaptive force, and the slide plates 311 at both ends of the cross bar 31 can perform lifting and lowering movements on the two connecting seats 38. Combined with the elastic force of the second spring 391, when the height of the return working surface of the conveyor belt changes, the heights of the blades of the multiple scrapers 32 can be raised and lowered synchronously (when the return working surface of the conveyor belt becomes higher, the height of the blade of the scraper 32 increases, and when the return working surface of the conveyor belt becomes lower, the height of the blade of the scraper 32 decreases), further reducing damage to the conveyor belt.

[0041] like Figure 6 As shown, the present application also includes a fan mechanism, which includes a casing 6 and a vortex high-pressure fan arranged in the casing 6. The air outlet duct of the vortex high-pressure fan is connected to the air inlet duct of the wind knife mechanism 4. When the conveyor belt runs at the limit speed, the air drying link controls the wind pressure and air volume through the wind knife mechanism 4 and combines the running speed of the conveyor belt to accurately blow away the water vapor to achieve rapid air drying of the conveyor belt. This situation is particularly important in extremely cold weather in winter. The fan mechanism serves as the power source of the wind knife, and has a dedicated vortex high-pressure fan inside. After starting up, the fan quickly pressurizes the air to release heat, forming a high-speed airflow with temperature, which comes out from the air outlet of the wind knife mechanism 4 through a pipe and blows toward the conveyor belt at a certain tangential angle.

[0042] like Figure 7As shown, the purification host includes an integrated box 7, in which a pH adjustment coagulation reaction tank unit 71, an inclined tube sedimentation unit 72, a dosing unit 73, an air flotation unit 74, an activated carbon adsorption unit 75 and a spiral sludge dehydration unit 76 are arranged; the dosing unit 73 is used to add reagents to the pH adjustment coagulation reaction tank unit 71, the inclined tube sedimentation unit 72 is used to sludge sedimentate the sewage from the pH adjustment coagulation reaction tank unit 71, the air flotation unit 74 is used to treat the impurities in the supernatant from the inclined tube sedimentation unit 72, the spiral sludge dehydration unit 76 is used to dehydrate and separate the flocculent sludge from the inclined tube sedimentation unit 72, the activated carbon adsorption unit 75 is used to remove COD from the clean water from the air flotation unit 74, the pH adjustment coagulation reaction tank unit 71 includes PH adjustment module and coagulation reaction module, the inclined tube sedimentation unit 72 includes a primary sedimentation unit for sedimenting the sewage from the PH adjustment coagulation reaction tank unit 71 and a secondary sedimentation unit for re-precipitating the supernatant from the primary sedimentation unit; the sewage collection tank collects a large amount of flushing sewage to be recycled or discharged in compliance with standards after purification. There are high-level, low-level and ultra-low-level liquid level switches in the sewage collection tank. An aeration pipe is arranged at the bottom for regular aeration to prevent the bottom of the material from settling into plates. A sewage transfer pump is installed. The sewage transfer pump is used to transfer sewage to the PH adjustment tank of the PH adjustment module for pretreatment; when the PH adjustment tank reaches a high level, its corresponding PH detection sensor immediately detects it. There are two PH detection sensor probes (as backup for each other) to improve stability. When the pH value does not meet the standard, the mixer of the dosing system is started, and the NaOH metering pump of the dosing unit 73 is automatically started to adjust the pH value. After achieving the desired effect, the sewage that meets the pH value standard is transferred to the coagulation reaction tank of the coagulation reaction module through the coagulation lifting pump for coagulation reaction. The sewage with good coagulation reaction is transferred to the inclined tube sedimentation unit 72 through the inclined tube lifting pump. The sewage containing floccules is precipitated through the primary sedimentation unit and the secondary sedimentation unit. Due to the action of gravity and centrifugal force, the floccules remain at the bottom, and the supernatant overflows from the top and flows to the flotation unit 74. The flotation unit 74 uses fine dissolved oxygen technology to allow the impurities with relatively light specific gravity in the sewage to float and separate. This flotation process is the same as the previous sedimentation process. The two processes complement each other, making the separated water clearer. The activated carbon adsorption lifting pump will work in conjunction with the liquid level to transfer the clean water separated by flotation to the activated carbon adsorption tank of the activated carbon adsorption unit 75, effectively removing COD, making the recycled water clearer and cleaner, and meeting the requirements of reuse and discharge. The water in the activated carbon adsorption tank passes through the secondary security filter (the secondary security filter is a bag filter and a PP cotton filter, and its main function is to intercept residual activated carbon powder and tiny particles to prevent them from entering the subsequent process) through the recycled water tank lifting pump and then flows into the buffer water tank. The flocculent sludge of the primary sedimentation unit will be regularly sent to the spiral stacking sludge dewatering unit 76 for dehydration and separation through the spiral stacking machine lifting pump.

[0043] In summary, the return working surface of the conveyor belt is cleaned by the conveyor belt cleaning box, and the sewage after cleaning is collected by the conveyor belt cleaning box and directed to the sewage collection pool. The sewage from the sewage collection pool is purified by the purification host, and then the purified sewage is stored in the buffer water tank, and finally supplied to the conveyor belt cleaning box again for reuse, thereby realizing the recycling of water, protecting the environment, and saving water resources.

[0044] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. A conveyor belt cleaning system, characterized in that: include: A conveyor belt cleaning box, a sewage collection tank, a purification host and a cache water tank. The conveyor belt cleaning box is used to clean the conveyor belt, the sewage collection tank is used to collect sewage from the conveyor belt cleaning box, the purification host is used to treat and purify the sewage from the sewage collection tank, and the cache water tank is used to cache the clean water purified by the purification host and supply clean water to the conveyor belt cleaning box.

2. A conveyor belt cleaning system according to claim 1, characterized in that: The conveyor belt cleaning box comprises a frame, on which a head roller (1), a high-pressure flushing pipe (2), a sweeper mechanism (3), an air knife mechanism (4) and a water collecting tray (5) are arranged. The water collecting tray (5) is arranged below the head roller (1), the high-pressure flushing pipe (2), the sweeper mechanism (3) and the air knife mechanism (4). The water collecting tray (5) is connected to a sewage collection tank through a pipeline, and the high-pressure flushing pipe (2) is connected to a buffer water tank through a pipeline. One end of the conveyor belt is wound around the head roller (1), and the high-pressure flushing pipe (2), the sweeper mechanism (3) and the air knife mechanism (4) are arranged below the conveyor belt in sequence from one end of the head roller (1).

3. A conveyor belt cleaning system according to claim 2, characterized in that: The sweeper mechanism (3) comprises a crossbar (31) and a plurality of scraper assemblies, wherein the crossbar (31) is horizontally arranged above the water collection tray (5); A plurality of scraper assemblies are sequentially arranged on the cross bar (31) along the axial direction of the cross bar (31), and the scraper assemblies include scrapers (32) with their blades facing the conveyor belt.

4. A conveyor belt cleaning system according to claim 3, characterized in that: The scraper assembly also includes a mounting seat (33), a screw rod (34), a nut (35), a mounting shaft (36) and a blade seat (37); the mounting seat (33) is arranged on the cross bar (31); a mounting plate (331) is arranged inside the mounting seat (33); a straight groove (332) is arranged on both sides of the mounting plate (331) of the mounting seat (33); two ends of the mounting shaft (36) are respectively slidably arranged in the straight groove (332); one end of the screw rod (34) is threadedly connected to the mounting plate (331), and the other end passes through the mounting shaft (36); the nut (35) is sleeved on the screw rod (34); the nut (35) is arranged on a side of the mounting shaft (36) away from the mounting plate (331); and the length direction of the straight groove (332) is consistent with the axial direction of the screw rod (34); The knife seat (37) is arranged on the mounting shaft (36), and the scraper (32) is arranged on the knife seat (37).

5. A conveyor belt cleaning system according to claim 4, characterized in that: A torsion spring (361) is arranged on the installation shaft (36), and two ends of the torsion spring (361) abut against the inner side of the knife seat (37), and a side of the knife seat (37) away from the torsion spring (361) abuts against the installation seat (33).

6. A conveyor belt cleaning system according to claim 5, characterized in that: The scraper assembly also includes two connecting seats (38) and two pull rods (39). Both ends of the cross bar (31) are provided with slide plates (311). The two connecting seats (38) are provided with slide rails extending in the vertical direction. The two slide plates (311) are respectively slidably arranged on the slide rails of the two connecting seats (38). The two pull rods (39) are slidably arranged on the connecting seats (38). The bottom end of the pull rod (39) is connected to the end of the cross bar (31). The axial direction of the pull rod (39) is consistent with the extension direction of the slide rail. The pull rod (39) is provided with a second spring (391). The second spring (391) provides the pull rod (39) with a thrust for upward movement.

7. A conveyor belt cleaning system according to claim 2, characterized in that: It also includes a fan mechanism, which includes a casing (6) and a vortex high-pressure fan arranged in the casing (6), and the air outlet pipe of the vortex high-pressure fan is connected to the air inlet pipe of the wind knife mechanism (4).

8. A conveyor belt cleaning system according to claim 1, characterized in that: The purification host comprises an integrated box (7), in which a pH adjustment coagulation reaction tank unit (71), an inclined tube sedimentation unit (72), a dosing unit (73), an air flotation unit (74), an activated carbon adsorption unit (75) and a spiral sludge dehydration unit (76) are arranged; the dosing unit (73) is used to add a reagent to the pH adjustment coagulation reaction tank unit (71), the inclined tube sedimentation unit (72) is used to perform sludge sedimentation on sewage from the pH adjustment coagulation reaction tank unit (71), the air flotation unit (74) is used to perform impurity treatment on the supernatant from the inclined tube sedimentation unit (72), the spiral sludge dehydration unit (76) is used to dehydrate and separate flocculent sludge from the inclined tube sedimentation unit (72), and the activated carbon adsorption unit (75) is used to perform COD removal treatment on clean water from the air flotation unit (74).

9. A conveyor belt cleaning system according to claim 8, characterized in that: The pH adjustment coagulation reaction tank unit (71) comprises a pH adjustment module and a coagulation reaction module.

10. A conveyor belt cleaning system according to claim 8, characterized in that: The inclined tube sedimentation unit (72) comprises a primary sedimentation unit for sedimenting sewage from the pH adjustment coagulation reaction tank unit (71) and a secondary sedimentation unit for re-precipitating the supernatant from the primary sedimentation unit.

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