Belt conveyor for sludge treatment

Abstract

The utility model relates to a belt conveyor, specifically, a belt conveyor for sludge treatment. It comprises a base, a conveying mechanism arranged on the base, the conveying mechanism being used for conveying sludge, the conveying mechanism comprising a first conveying assembly, a second conveying assembly and a driving assembly, a cleaning mechanism arranged above the base, the cleaning mechanism being used for cleaning sludge on the first conveying assembly, the cleaning mechanism comprising a moving assembly, a mounting plate and a spraying assembly. When the conveying of sludge is completed and the conveying belt continues to rotate, the piston rod of the first electric telescopic rod is retracted to drive the mounting plate to move, the connecting frame drives the sliding block and the moving roller to move away from the first rotating roller in the moving process of the mounting plate, the first conveying belt is kept in a taut state, the recesses on the surface of the conveying belt are made smooth, water is pumped into the inside of the water inlet pipe through the water pump, and the sludge on the surface of the conveying belt is washed out through the water spraying pipe and the nozzle.

Description

Technical Field

[0001] This utility model relates to a belt conveyor, specifically, to a belt conveyor for sludge treatment. Background Technology

[0002] Sludge is a byproduct of wastewater treatment. It is an extremely complex heterogeneous substance composed of organic debris, bacterial cells, inorganic particles, colloids, etc. The main characteristics of sludge are high water content, high organic matter content, easy putrefaction and odor, fine particles, low specific gravity, and a colloidal liquid state. It is a viscous substance between liquid and solid, which is difficult to separate into solid and liquid by sedimentation. Because sludge contains a large amount of organic matter and pathogens, direct discharge of sludge will cause secondary pollution to the environment. Therefore, sludge needs to be treated. In the sludge treatment process, belt conveyors are usually used to transport sludge to the treatment location to facilitate its transport.

[0003] In existing belt conveyors, sludge to be treated is dumped onto the conveyor and transported to the treatment area for processing. The conveyor belt has raised sections to increase surface roughness and friction between the belt and the sludge, facilitating transport. During transport, scrapers on the conveyor remove residual sludge, ensuring timely cleaning. However, the uneven surface of the conveyor belt allows sludge to enter its recesses. Furthermore, the central section of the belt is lower than the sides, creating a depression that causes sludge to flow towards the center. These depressions make it difficult for the scrapers to remove the sludge, requiring manual cleaning and increasing labor costs. Therefore, we propose a belt conveyor for sludge treatment. Utility Model Content

[0004] The purpose of this invention is to provide a belt conveyor for sludge treatment, in order to solve the problem mentioned in the background art that scrapers are unable to remove sludge from the depressions on the conveyor belt, resulting in increased labor costs for conveyor belt cleaning.

[0005] To address the aforementioned problems, the present invention aims to provide a belt conveyor for sludge treatment, comprising a base, on which a conveying mechanism is mounted. The conveying mechanism is used to convey sludge and includes a first conveying component, a second conveying component, and a driving component. The driving component drives the first and second conveying components to convey sludge. The first conveying component includes a first mounting frame obliquely fixed on the base. Two sliders are symmetrically slidably disposed near both sides of one end of the first mounting frame. A movable roller is rotatably disposed between the two sliders. Two first baffles are symmetrically fixedly disposed on the upper side of the first mounting frame, tilting upwards away from the first mounting frame. The two first baffles are positioned near the movable roller. The device is equipped with a cleaning mechanism, which is used to adjust the position of the moving roller and clean the sludge on the first conveying assembly. The cleaning mechanism includes a moving component, a mounting plate, and a spraying component. The mounting plate is fixed to two sliders by a connecting frame. The moving component is used to move the mounting plate, and the moving mounting plate moves the sliders and the moving roller through the connecting frame. The spraying component is used to rinse the sludge remaining on the first conveying assembly and pour the sludge onto the first conveying assembly. The first and second conveying assemblies are driven by a driving component to transport the sludge. After the sludge is transported, the moving component moves the mounting plate, and the spraying component on the mounting plate rinses the sludge on the first conveying assembly.

[0006] As a further improvement to this technical solution, a first rotating roller is rotatably arranged inside the first mounting frame on the side away from the moving rotating roller, and a first conveyor belt is driven to the outside of the first rotating roller and the moving rotating roller. During the rotation of the first rotating roller, the first conveyor belt is driven to rotate so as to transport sludge.

[0007] As a further improvement to this technical solution, the moving component includes a fixed frame fixedly mounted on one end of the two first baffles near the moving roller. Two first electric telescopic rods are symmetrically fixedly mounted on the side of the fixed frame near the first baffle. The piston rod of the first electric telescopic rod is fixedly mounted on the side of the mounting plate near the fixed frame. A gap is left between the mounting plate and the first conveyor belt. During the extension and retraction process, the piston rod of the first electric telescopic rod drives the mounting plate to move along the rotation direction of the first conveyor belt.

[0008] As a further improvement to this technical solution, the mounting plate is provided with a mounting groove that passes through the mounting plate. The spray assembly includes a rotating plate with a fan-shaped cross-section. The end of the rotating plate away from the arc surface is hinged to the top of the mounting groove. The arc surface of the rotating plate is provided with a fixing groove. A water spray pipe is fixedly installed inside the fixing groove. Several nozzles are fixedly installed at the bottom of the water spray pipe. The nozzles are located inside the fixing groove and spray water from inside the water spray pipe onto the first conveying assembly through the nozzles.

[0009] As a further improvement to this technical solution, two connecting rods are fixedly installed on the side of the fixed frame near the rotating plate. A rotating block is rotatably connected to the end of the connecting rod away from the fixed frame. The rotating block is slidably installed on the side of the rotating plate near the fixed frame. When the mounting plate moves, it drives the rotating plate to move, and the rotating plate is rotated by the connecting rods pressing against the rotating plate.

[0010] As a further improvement to this technical solution, a limiting groove is formed on the mounting plate away from the fixing frame and near the bottom. The limiting groove is connected to the mounting groove. A limiting block is fixedly set on the rotating plate near the limiting groove. The limiting block matches the limiting groove. During the rotation of the rotating plate, the limiting block is driven into the interior of the limiting groove, thereby preventing the rotating plate from separating from the mounting plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This belt conveyor for sludge treatment, after the sludge is conveyed, continues to rotate. At this time, the piston rod of the first electric telescopic rod retracts, driving the mounting plate to move. During the movement of the mounting plate, the connecting frame drives the slider and moving roller to move away from the first rotating roller, keeping the first conveyor belt taut. This makes the depressions on the surface of the conveyor belt smooth. At the same time, water is pumped into the inlet pipe by a water pump and sprayed out through the spray pipe and nozzle to wash the surface of the conveyor belt, thereby effectively cleaning the sludge remaining on the conveyor belt and reducing the labor cost of cleaning the conveyor belt. Attached Figure Description

[0013] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0014] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0015] Figure 3 This is the third schematic diagram of the overall structure of this utility model;

[0016] Figure 4 This is an overall sectional view of the present invention;

[0017] Figure 5 This is a partial structural schematic diagram of the conveying mechanism in this utility model;

[0018] Figure 6 This is one of the structural schematic diagrams of the clean structure in this utility model;

[0019] Figure 7 This is the second schematic diagram of the clean structure in this utility model;

[0020] Figure 8This is one of the assembly diagrams of the mounting plate, connecting frame, slider and movable roller in this utility model;

[0021] Figure 9 This is the second assembly diagram of the mounting plate, connecting frame, slider and movable roller in this utility model.

[0022] The meanings of the labels in the diagram are as follows:

[0023] 1. Base;

[0024] 2. Conveying mechanism; 21. First mounting frame; 211. First scraper; 212. Slider; 213. Moving roller; 22. First roller; 23. First conveyor belt; 24. First baffle; 25. Second mounting frame; 251. Second scraper; 26. Second roller; 27. Second conveyor belt; 28. Second baffle; 29. ​​Second electric telescopic rod;

[0025] 3. Cleaning mechanism; 31. Fixing frame; 32. First electric telescopic pole; 33. Mounting plate; 34. Rotating plate; 35. Connecting rod; 36. Water spray pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figure 1 - Figure 9 As shown, one of the objectives of this embodiment is to provide a belt conveyor for sludge treatment, including a base 1, on which a conveying mechanism 2 is provided. The conveying mechanism 2 is used to convey sludge. The conveying mechanism 2 includes a first conveying component, a second conveying component, and a driving component. The driving component is used to drive the first conveying component and the second conveying component to convey sludge. The worker pours the sludge to be treated onto the first conveying component at a position away from the second conveying component. Then, the driving component drives the first conveying component and the second conveying component, so that the first conveying component conveys the sludge onto the second conveying component, and then the second conveying component conveys the sludge to the sludge treatment position, so that the subsequent sludge treatment equipment can treat the sludge.

[0029] refer to Figure 1 - Figure 5The first conveying assembly includes a first mounting frame 21 that is tilted and fixed on the base 1. The end of the first mounting frame 21 closest to the second conveying assembly is tilted away from the base 1. The first mounting frame 21 has a frame structure. Two sliders 212 are symmetrically slidably arranged near both sides of one end of the first mounting frame 21. A movable roller 213 is rotatably arranged between the two sliders 212. Both the sliders 212 and the movable roller 213 are built into the frame of the first mounting frame 21. A first roller 22 is rotatably arranged inside the first mounting frame 21 on the side away from the movable roller 213. A first conveyor belt 23 is driven to the outside of the first roller 22 and the movable roller 213. During rotation, the first roller 22 drives the first conveyor belt 23 to rotate, thus conveying sludge. During movement, the sliders 212 move the movable roller 213 away from or closer to the first roller 22, changing the distance between the first roller 22 and the movable roller 213 to adjust the tension of the first conveyor belt 23 during sludge conveying. The tension of the first conveyor belt 23 is adjusted to maintain a suitable level, ensuring stable friction between the first conveyor belt 23 and the first rotating roller 22 and the moving roller 213. This facilitates the rotation of the first rotating roller 22 and the moving roller 213, which in turn drives the first conveyor belt 23 to rotate and transport sludge. Two first baffles 24 are symmetrically fixed on the upper side of the first mounting frame 21, tilting upwards away from the first mounting frame 21. The two first baffles 24 correspond to the positions of the slider 212 and are set on both sides of the first mounting frame 21. The first baffles 24 are used to block the sludge on the first conveyor belt 23 and prevent the sludge from falling from both sides of the first conveyor belt 23. A first scraper 211 is fixed on the side of the first mounting frame 21 near the first rotating roller 22. The top of the first scraper 211 slides in contact with the surface of the first conveyor belt 23. During the rotation of the first conveyor belt 23, the first scraper 211 scrapes off the sludge remaining on the first conveyor belt 23, causing the scraped sludge to fall onto the second conveying assembly.

[0030] refer to Figure 2 - Figure 5The second conveying assembly includes a second mounting frame 25 hinged to the bottom of the first mounting frame 21 near the first scraper 211. Two second rollers 26 are symmetrically rotatably connected to both ends inside the second mounting frame 25. A second conveyor belt 27 is driven to rotate on the outer sides of the two second rollers 26. During rotation, the second rollers 26 drive the second conveyor belt 27 to rotate, thus conveying sludge. Two inclined second baffles 28 are symmetrically fixed on the upper side of the second mounting frame 25. The tops of the second baffles 28 are inclined away from the second conveyor belt 27. The second baffles 28 are located on both sides of the second mounting frame 25 and are used to block sludge from falling off the second conveyor belt 27. The bottom of the second mounting frame 25 is fixed away from the first mounting frame 21. A second scraper 251 is fixedly provided. One end of the second scraper 251 slides in contact with the surface of the second conveyor belt 27. During the rotation of the second conveyor belt 27, the second scraper 251 scrapes off the sludge remaining on the second conveyor belt 27, allowing the scraped sludge to fall into the interior of the sludge treatment equipment. Two second electric telescopic rods 29 are symmetrically hinged on the side of the first mounting frame 21 near the second mounting frame 25. The piston rods of the second electric telescopic rods 29 are hinged to the second mounting frame 25. During the extension and retraction process, the piston rods of the second electric telescopic rods 29 drive the second mounting frame 25 to rotate around the hinged position, adjusting the tilt angle of the second mounting frame 25 and the second conveyor belt 27, thereby changing the position where the sludge on the second conveyor belt 27 falls, making it easier for the sludge on the second conveyor belt 27 to fall into the interior of the sludge treatment equipment for treatment.

[0031] refer to Figure 5 The drive assembly includes a speed-regulating motor fixedly mounted on one side of the first mounting bracket 21 near the second mounting bracket 25. The speed-regulating motor is an existing product and will not be described here. The output shaft of the speed-regulating motor is connected to a first transmission sprocket and a second transmission sprocket via a coupling. The first transmission sprocket and the second transmission sprocket are arranged along the axis of the output shaft of the speed-regulating motor. A first driven sprocket is coaxially fixedly connected to one end of the first roller 22 near the speed-regulating motor. A first chain is meshed with the outer sides of the first transmission sprocket and the first driven sprocket. A second driven sprocket is coaxially fixedly connected to one end of the second roller 26 near the first mounting bracket 21. A second chain is meshed with the outer sides of the second transmission sprocket and the second driven sprocket. The output shaft of the rotating speed-regulating motor drives the first transmission sprocket and the second transmission sprocket to rotate, so that the first transmission sprocket and the second transmission sprocket drive the first driven sprocket and the second driven sprocket to rotate respectively via the first chain and the second chain. During the rotation, the first driven sprocket and the second driven sprocket drive the first roller 22 and the second roller 26 to rotate respectively.

[0032] Example 2

[0033] During the use of the first conveyor belt 23, solid particles in the sludge will adhere to the surface of the first conveyor belt 23. These adherents gradually accumulate, causing the conveyor belt surface to become rough. It becomes difficult to remove the sludge from the recesses of the first conveyor belt 23 using only a scraper. To ensure that there is no excessive sludge residue on the first conveyor belt 23, refer to... Figure 4 , Figure 6 , Figure 7 and Figure 9 Two first baffles 24 are equipped with a cleaning mechanism 3 near one end of the moving roller 213. The cleaning mechanism 3 is used to adjust the position of the moving roller 213 and clean the sludge on the first conveying assembly. The cleaning mechanism 3 includes a moving component, a mounting plate 33, and a spraying component. The mounting plate 33 is fixed to the two sliders 212 by a connecting frame. A gap is left between the mounting plate 33 and the first conveyor belt 23 to prevent friction between the mounting plate 33 and the first conveyor belt 23, and also to prevent the mounting plate 33 from scraping the sludge off the first conveyor belt 23 and leaving the sludge on the side of the mounting plate 33 near the fixing frame 31, thus preventing sludge accumulation from affecting the normal use of the cleaning mechanism 3. The moving component is used to move the mounting plate 33. The moving mounting plate 33 drives the sliders 212 and the moving roller 213 to move through the connecting frame. The spraying component is used to rinse the sludge remaining on the first conveying assembly. The sludge conveying operation is completed. Then, the first conveyor belt 23 continues to operate, while the moving component drives the mounting plate 33 to move away from the first roller 22. During the movement, the mounting plate 33 drives the slider 212 to move through the connecting frame, causing the slider 212 to drive the moving roller 213 to move away from the first roller 22. As the moving roller 213 moves away from the first roller 22, the moving roller 213 and the first roller 22 pull the first conveyor belt 23 into a taut state. The taut first conveyor belt 23 makes the originally concave surface flat, and the sludge inside the concave part of the first conveyor belt 23 is exposed, making it easier for the first scraper 211 to scrape off the sludge. At this time, water is sprayed onto the surface of the first conveyor belt 23 through the spraying component on the mounting plate 33, so that the water washes away the sludge remaining on the surface of the first conveyor belt 23, thereby reducing the sludge residue on the first conveyor belt 23.

[0034] refer to Figure 6 - Figure 9The mounting plate 33 has a mounting groove that passes through it. The spray assembly includes a rotating plate 34 with a fan-shaped cross-section. The end of the rotating plate 34 away from the arc surface is hinged to the top of the mounting groove. The arc surface of the rotating plate 34 has a fixing groove. A water spray pipe 36 is fixedly installed inside the fixing groove. Several nozzles are fixedly installed at the bottom of the water spray pipe 36. The nozzles are located inside the fixing groove. A water inlet pipe is fixedly installed on the water spray pipe 36. The water inlet pipe is connected to a water pump. The water pump fills the inside of the water inlet pipe, so that the water inside the water inlet pipe enters the inside of the water spray pipe 36. The water inside the water spray pipe 36 is sprayed onto the surface of the first conveyor belt 23 through the nozzles to wash away the sludge, thereby reducing the residual sludge on the first conveyor belt 23.

[0035] refer to Figure 6 - Figure 9 The moving component includes a fixed frame 31 fixedly mounted on one end of the two first baffles 24 near the moving roller 213. Two first electric telescopic rods 32 are symmetrically fixedly mounted on the side of the fixed frame 31 near the first baffles 24. The piston rods of the first electric telescopic rods 32 are fixedly mounted on the side of the mounting plate 33 near the fixed frame 31. Two connecting rods 35 are fixedly mounted on the side of the fixed frame 31 near the rotating plate 34. A rotating block is rotatably connected to the end of the connecting rod 35 away from the fixed frame 31. The rotating block is slidably mounted on the side of the rotating plate 34 near the fixed frame 31. A limiting groove is opened on the bottom of the mounting plate 33 away from the fixed frame 31. The limiting groove is connected to the mounting groove. A limiting block is fixedly mounted on the rotating plate 34 near the limiting groove. The limiting block matches the limiting groove. The rotation angle of the rotating plate 34 is limited by the limiting block and the limiting groove.

[0036] In the initial state, the piston rod of the first electric telescopic rod 32 drives the mounting plate 33 to move along the rotation direction of the first conveyor belt 23 during the extension and retraction process. When the mounting plate 33 moves to the longest distance extended by the piston rod of the first electric telescopic rod 32, the water spray pipe 36 is located on the side of the mounting plate 33 away from the first rotating roller 22. At this time, the rotating plate 34 and the surface of the mounting plate 33 are on the same plane. During the movement of the mounting plate 33, the limiting block on the rotating plate 34 will enter the interior of the limiting groove. When the mounting plate 33 stops moving, the rotating plate 34 rotates. The rotating plate 34 stops rotating as it is restricted by the limiting block and the limiting groove. At this time, the rotating plate 34 and the surface of the mounting plate 33 form a plane. The mounting plate 33 and the rotating plate 34 block the sludge on the first conveyor belt 23, preventing the sludge from flowing downward along the first conveyor belt 23. At the same time, the rotating plate 34 drives the water spray pipe 36 and the nozzle to move to the side of the mounting plate 33 closer to the fixed frame 31, thereby preventing the sludge from entering the interior of the fixed groove and causing the sludge to adhere to the nozzle and cause nozzle blockage.

[0037] When the first conveyor belt 23 needs cleaning, the piston rod of the first electric telescopic rod 32 retracts, causing the mounting plate 33 to move away from the first roller 22. After the first conveyor belt 23 is cleaned, the piston rod of the first electric telescopic rod 32 extends, causing the mounting plate 33 to move closer to the first roller 22. As the mounting plate 33 moves away from the first roller 22, the connecting rod 35 pushes the rotating plate 34, causing the bottom of the rotating plate 34 to rotate towards the first roller 22. The rotating plate 34 then drives the water spray pipe 36 to move closer to the first roller 22 via the mounting plate 33. On one side, water inside the water spray pipe 36 is sprayed through the nozzle onto the surface of the first conveyor belt 23 to wash away the sludge, thereby improving the cleaning effect on the sludge on the surface of the first conveyor belt 23. After the first conveyor belt 23 is cleaned, the mounting plate 33 moves toward the direction closer to the first roller 22. At this time, the connecting rod 35 pulls the bottom of the rotating plate 34 to rotate away from the first roller 22, so that the rotating plate 34 moves the water spray pipe 36 to the side of the mounting plate 33 away from the first roller 22, so that the water spray pipe 36 is protected by the mounting plate 33 to prevent sludge from clogging the water spray pipe 36.

[0038] When using this device:

[0039] After the first conveyor belt 23 has finished conveying the sludge, the first conveyor belt 23 continues to rotate. At this time, the piston rod of the first electric telescopic rod 32 retracts, causing the mounting plate 33 to move away from the first rotating roller 22. During the movement of the mounting plate 33, the slider 212 is moved through the connecting frame, causing the slider 212 to move the moving rotating roller 213 away from the first rotating roller 22, thereby adjusting the tension of the first conveyor belt 23 and making the depressions on the surface of the first conveyor belt 23 flat.

[0040] At the same time, the moving mounting plate 33 drives the rotating plate 34 to approach the fixed frame 31. During this process, the connecting rod 35 abuts against the rotating plate 34, causing the rotating plate 34 to rotate and move the water spray pipe 36 to the side of the mounting plate 33 close to the first rotating roller 22. Water is pumped into the inside of the water inlet pipe by the water pump, so that the water inside the water inlet pipe enters the inside of the water spray pipe 36 and is sprayed onto the surface of the first conveyor belt 23 through the nozzle, thereby washing away the sludge on the surface of the first conveyor belt 23.

[0041] After the first conveyor belt 23 is cleaned, the piston rod of the first electric telescopic rod 32 extends and drives the mounting plate 33 to move closer to the first rotating roller 22. During this process, the connecting rod 35 pulls the rotating plate 34 to rotate in the opposite direction, so that the limiting block on the rotating plate 34 enters the interior of the limiting groove, so as to facilitate the normal use of the device in the future.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor for sludge treatment, comprising a base (1), wherein a conveying mechanism (2) is provided on the base (1), the conveying mechanism (2) is used to convey sludge, the conveying mechanism (2) includes a first conveying component, a second conveying component, and a driving component, the driving component being used to drive the first conveying component and the second conveying component to convey sludge, characterized in that: The first conveying assembly includes a first mounting bracket (21) that is obliquely fixed on a base (1). Two sliders (212) are symmetrically slidably arranged near the two sides at one end of the first mounting bracket (21). A movable roller (213) is rotatably arranged between the two sliders (212). Two first baffles (24) that are obliquely upward and away from the first mounting bracket (21) are symmetrically fixed on the upper side of the first mounting bracket (21). A cleaning mechanism is provided at the end of the two first baffles (24) near the movable roller (213). (3) The cleaning mechanism (3) is used to adjust the position of the moving roller (213) and clean the sludge on the first conveying assembly. The cleaning mechanism (3) includes a moving component, a mounting plate (33) and a spraying component. The mounting plate (33) is fixed together with two sliders (212) through a connecting frame. The moving component is used to drive the mounting plate (33) to move. The moving mounting plate (33) drives the sliders (212) and the moving roller (213) to move through the connecting frame. The spraying component is used to rinse the sludge remaining on the first conveying assembly.

2. The belt conveyor for sludge treatment according to claim 1, characterized in that: The first mounting frame (21) has a first rotating roller (22) rotatably mounted on the side away from the movable rotating roller (213) inside. The first rotating roller (22) and the movable rotating roller (213) are connected by a first conveyor belt (23) for transmission. The first rotating roller (22) drives the first conveyor belt (23) to rotate during rotation so that it transports sludge.

3. The belt conveyor for sludge treatment according to claim 2, characterized in that: The moving component includes a fixed frame (31) fixedly mounted on one end of the two first baffles (24) near the moving roller (213). Two first electric telescopic rods (32) are symmetrically fixed on the side of the fixed frame (31) near the first baffles (24). The piston rod of the first electric telescopic rod (32) is fixedly mounted on the side of the mounting plate (33) near the fixed frame (31). There is a gap between the mounting plate (33) and the first conveyor belt (23). During the extension and retraction process, the piston rod of the first electric telescopic rod (32) drives the mounting plate (33) to move along the rotation direction of the first conveyor belt (23).

4. The belt conveyor for sludge treatment according to claim 3, characterized in that: The mounting plate (33) has a mounting groove that passes through it. The spray assembly includes a rotating plate (34) with a fan-shaped cross-section. The end of the rotating plate (34) away from the arc surface is hinged to the top of the mounting groove. The arc surface of the rotating plate (34) has a fixing groove. A water spray pipe (36) is fixedly installed inside the fixing groove. Several nozzles are fixedly installed at the bottom of the water spray pipe (36). The nozzles are located inside the fixing groove.

5. The belt conveyor for sludge treatment according to claim 4, characterized in that: Two connecting rods (35) are fixedly installed on the side of the fixed frame (31) near the rotating plate (34). A rotating block is rotatably connected to the end of the connecting rod (35) away from the fixed frame (31). The rotating block is slidably installed on the side of the rotating plate (34) near the fixed frame (31).

6. The belt conveyor for sludge treatment according to claim 5, characterized in that: The mounting plate (33) is provided with a limiting groove near the bottom away from the fixing frame (31). The limiting groove is connected to the mounting groove. The rotating plate (34) is fixedly provided with a limiting block near the limiting groove. The limiting block matches the limiting groove.

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