A device for the resource utilization of river silt
By combining heated roller extrusion, cam beating, and crushing with crushing components, the "snowball effect" problem in the sludge drying process was solved, achieving rapid drying and uniform evaporation of the sludge and improving the drying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU CHENGYUAN ENVIRONMENTAL PROTECTION EQUIP ENG CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-30
AI Technical Summary
In existing technologies, sludge is prone to forming a "snowball effect" during the drying process, making it difficult for internal moisture to evaporate and affecting the drying effect.
Heated rollers are used to squeeze the sludge, combined with cam beating and crushing by crushing parts, to promote full contact between the sludge and hot air and prevent clumping. Guide plates are used to break up the sludge and enhance the drying effect.
This effectively avoids the "snowball effect," accelerates the drying speed of sludge, improves drying efficiency, ensures that the internal moisture of the sludge evaporates fully, and prevents clumping.
Smart Images

Figure CN224430472U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sludge treatment technology, specifically to a device for the resource utilization of river silt. Background Technology
[0002] The accumulation of silt in municipal waterways over a long period of time can cause the riverbed to rise, reduce water storage capacity, and lead to a decrease in agricultural water use. Therefore, regular silt removal is necessary. In addition to various impurities, silt also contains a considerable amount of nutrients that can be used as fertilizer for farmland. Therefore, people generally reuse silt through silt environmental treatment, recycling and reuse devices.
[0003] Currently, when drying dehydrated sludge, existing technologies often use rotary drums for drying. During the drying process, the sludge is repeatedly rolled inside the drum, resulting in a "snowball effect" (the outer layer is coated with the inner layer of wet sludge), which leads to a "sugar core" phenomenon where the outer layer is dry and the inside is soft and wet. This makes it difficult for the moisture inside the sludge to evaporate effectively, thus affecting the drying effect of the sludge. Utility Model Content
[0004] In order to solve the problems existing in the prior art, the purpose of this application is to provide a device for the resource utilization of river silt.
[0005] The device for resource utilization of river silt described in this application includes a drying box and a feeding hopper. A feeding trough is provided at the bottom of the drying box, and a feeding hopper is fixedly connected to the top of the drying box.
[0006] The drying chamber is equipped with a conveyor belt, on which are multiple crushing parts, which are cone-shaped. A slapping mechanism is connected inside the drying chamber, which has the function of slapping the conveyor belt.
[0007] Furthermore, it is particularly preferred that the tapping mechanism includes a motor and a drive shaft fixedly connected to the output end of the motor. The drive shaft is rotatably connected to the drying chamber, and a cam that acts on the conveyor belt is eccentrically connected to the drive shaft. A pulley is provided on the drive shaft.
[0008] Furthermore, it is particularly preferred that a second motor is fixedly connected to the drying box, a heating roller is rotatably connected inside the drying box, the output end of the second motor is fixedly connected to the heating roller, and a spur gear is fixedly connected to the heating roller.
[0009] Furthermore, it is particularly preferred that a guide plate is fixedly connected inside the drying oven.
[0010] Furthermore, it is particularly preferred that the guide plate is provided with a connecting plate, and the upper side of the connecting plate is set as an inclined surface.
[0011] Furthermore, it is particularly preferred that a fixed plate is slidably connected inside the dry box, and the fixed plate is provided with multiple bristles that act on the conveyor belt.
[0012] Furthermore, it is particularly preferred that a spring is fixedly attached to the fixed plate, one end of which is fixedly connected to the drying box, and the spring causes the fixed plate to have a tendency to move left and right. A touch plate is fixedly attached to the fixed plate, and a connecting ball acting on the touch plate is fixedly attached to the conveyor belt.
[0013] The advantages of the river silt resource utilization device described in this application are as follows:
[0014] The heating rollers will compress the sludge, making it thinner, which will facilitate the subsequent drying of the sludge. At the same time, the heating rollers will also have a preliminary drying effect on the sludge during the compression process.
[0015] The cam beats the conveyor belt, causing the force generated by the conveyor belt to act on the sludge, making the sludge bounce and disperse, promoting full contact between the sludge and hot air, thereby accelerating the drying speed of the sludge. This avoids the "snowball effect" (the outer layer is covered with the inner layer of wet sludge) that occurs when the sludge is dried in the rotating drum in the existing technology, resulting in a "sugar core" phenomenon where the outer layer is dry and the inside is wet and soft, making it difficult for the moisture inside the sludge to evaporate effectively.
[0016] At the same time, during the reciprocating bounce of the sludge, the breaking parts will break up the sludge that falls after bouncing up, thereby preventing the sludge from clumping together as it gradually dries. If the clumped sludge is not broken up in time, it will affect the drying effect of the sludge. Attached Figure Description
[0017] Figure 1 This is a first three-dimensional structural schematic diagram of a river silt resource utilization device described in this application;
[0018] Figure 2 This is a second three-dimensional structural schematic diagram of a river silt resource utilization device described in this application;
[0019] Figure 3 This is a first partial cross-sectional view of a device for the resource utilization of river silt described in this application;
[0020] Figure 4 This is an enlarged view of point A of the river silt resource utilization device described in this application;
[0021] Figure 5 This is a second partial cross-sectional view of a river silt resource utilization device described in this application;
[0022] Figure 6 This is an enlarged view of section B of the river silt resource utilization device described in this application.
[0023] Explanation of reference numerals in the attached drawings: 1-Drying box, 1a-Feeding chute, 2-Feeding hopper, 3-Conveyor belt, 4-Crushed parts, 21-First motor, 22-Drive shaft, 23-Cam, 24-Pulley, 31-Second motor, 32-Heating roller, 33-Spur gear, 41-Guide plate, 42-Connecting plate, 51-Fixing plate, 52-Spring, 53-Brush bristles, 54-Touch plate, 55-Connecting ball. Detailed Implementation
[0024] Example 1
[0025] A device for the resource utilization of river silt, such as Figure 1-6 As shown, it includes a drying box 1 and a feeding hopper 2. A feeding trough 1a is provided at the bottom of the drying box 1, and a feeding hopper 2 is fixedly connected to the top of the drying box 1.
[0026] The drying chamber 1 is equipped with a conveyor belt 3, and multiple crushing parts 4 are provided on the conveyor belt 3. The crushing parts 4 are set as cones. The drying chamber 1 is connected to a slapping mechanism, which has the function of slapping the conveyor belt 3.
[0027] The tapping mechanism includes a motor 21 and a drive shaft 22 fixedly connected to the output end of the motor 21. The drive shaft 22 is rotatably connected to the drying box 1. A cam 23 acting on the conveyor belt 3 is eccentrically connected to the drive shaft 22. A pulley 24 is provided on the drive shaft 22.
[0028] A second motor 31 is fixedly connected to the drying box 1, and a heating roller 32 is rotatably connected inside the drying box 1. The output end of the second motor 31 is fixedly connected to the heating roller 32, and a spur gear 33 is fixedly connected to the heating roller 32.
[0029] A guide plate 41 is fixedly connected inside the drying oven 1.
[0030] A connecting plate 42 is provided on the guide plate 41, and the upper side of the connecting plate 42 is set as an inclined surface.
[0031] A fixed plate 51 is slidably connected inside the drying box 1. The fixed plate 51 is provided with multiple bristles 53 that act on the conveyor belt 3.
[0032] A spring 52 is fixedly connected to the fixed plate 51. One end of the spring 52 is fixedly connected to the drying box 1. The spring 52 causes the fixed plate 51 to have a tendency to move left and right. A touch plate 54 is fixedly connected to the fixed plate 51. A connecting ball 55 that acts on the touch plate 54 is fixedly connected to the conveyor belt 3.
[0033] When using the river silt resource utilization device, the drying box 1 first has a built-in dryer. After the silt is dewatered, it still contains a lot of moisture, so it needs to be dried. Therefore, the staff pours the silt to be dried into the drying box 1 through the hopper 2. During this process, the silt will fall between two heating rollers 32. Taking the front and back view as a reference, the second motor 31 is controlled to make the left heating roller 32 rotate clockwise. The corresponding spur gear 33 rotates synchronously with the left heating roller 32. Then, under the transmission of the spur gear 33, the two heating rollers 32 will be in a state of rotating in opposite directions. Thus, the heating rollers 32 will squeeze the silt, making the silt thinner, which is convenient for subsequent drying. At the same time, when the heating rollers 32 squeeze the silt, they will also have a preliminary drying effect on the silt.
[0034] Then, the squeezed sludge will fall onto the guide plate 41. Because the sludge will clump after being squeezed, it will be initially broken up when it falls onto the guide plate 41. The broken sludge will slide to the right along the guide plate 41. During the sliding process, the sludge will come into contact with the connecting plate 42. Under the action of inertia, the sludge will continue to slide along the inclined surface of the connecting plate 42 and detach from it. The detached sludge will be in a projectile state. Then, under the action of gravity, the projectile sludge will fall onto the guide plate 41 again, thereby further breaking up the sludge and preventing it from clumping and making it difficult to dry inside.
[0035] Next, the sludge will slide onto the conveyor belt 3. Based on the front-to-back view, the conveyor belt 3 is controlled to move the sludge to the right. During this process, the dryer of the drying box 1 is controlled to work simultaneously. The first motor 21 is controlled to rotate the transmission shaft 22, and the cam 23 rotates synchronously with the transmission shaft 22. The cam 23 will then beat the conveyor belt 3, so that the force generated by the conveyor belt 3 acts on the sludge, causing the sludge to bounce and disperse, promoting full contact between the sludge and the hot air, thereby accelerating the drying speed of the sludge. This avoids the "snowball effect" (the outer layer is covered with the inner layer of wet mud) that occurs when the sludge is dried in the rotating drum in the existing technology. This results in a "sugar core" phenomenon where the outer layer is dry and the inside is wet and soft, making it difficult for the moisture inside the sludge to evaporate effectively.
[0036] Meanwhile, during the reciprocating bounce of the sludge, the crushing component 4 will achieve a crushing effect on the sludge that falls after bounce, thereby preventing the sludge from clumping together as it gradually dries. If the clumped sludge is not crushed in time, it will affect the drying effect of the sludge. At the same time, since the crushing component 4 is set as a cone, it can achieve a better crushing effect on the clumped sludge. Then, under the action of the conveyor belt 3, the dried sludge will fall into the external collection box through the discharge chute 1a and be collected.
[0037] Meanwhile, during the operation of the conveyor belt 3, the connecting ball 55 will move synchronously with the conveyor belt 3, and then the connecting ball 55 will contact the contact plate 54, forcing the contact plate 54 to move forward. The contact plate 54 will drive the fixed plate 51 to slide forward on the drying box 1. The brush bristles 53 will move synchronously with the fixed plate 51, and the spring 52 will be compressed. Then the brush bristles 53 will produce a brushing effect on the surface of the conveyor belt 3 and the crushed parts 4, so that the sludge adhering to the conveyor belt 3 and the crushed parts 4 will be brushed off, thereby ensuring the cleanliness of the conveyor belt 3 and the crushed parts 4 and avoiding excessive sludge adhering to the conveyor belt 3 and the crushed parts 4, which would affect the crushing of the clumps of sludge by the crushed parts 4.
[0038] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application.
[0039] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this application.
Claims
1. A device for the resource utilization of river silt, comprising a drying box (1) and a feeding hopper (2), wherein a feeding trough (1a) is provided at the bottom of the drying box (1) and the feeding hopper (2) is fixedly connected to the drying box (1); The drying box (1) is equipped with a conveyor belt (3), and a plurality of crushing parts (4) are provided on the conveyor belt (3). The crushing parts (4) are set as cones. The drying box (1) is connected to a striking mechanism, which has the function of striking the conveyor belt (3).
2. The device for resource utilization of riverway silt according to claim 1, characterized in that, The striking mechanism includes a motor (21) and a drive shaft (22) fixedly connected to the output end of the motor (21). The drive shaft (22) is rotatably connected to the drying box (1). A cam (23) acting on the conveyor belt (3) is eccentrically connected to the drive shaft (22). A pulley (24) is provided on the drive shaft (22).
3. The device for resource utilization of riverway silt according to claim 1, characterized in that, A second motor (31) is fixedly connected to the drying box (1), and a heating roller (32) is rotatably connected inside the drying box (1). The output end of the second motor (31) is fixedly connected to the heating roller (32), and a spur gear (33) is fixedly connected to the heating roller (32).
4. The device for resource utilization of riverway silt according to claim 1, characterized in that, A guide plate (41) is fixedly connected inside the drying oven (1).
5. The device for resource utilization of riverway silt according to claim 4, characterized in that, The guide plate (41) is provided with a connecting plate (42), and the upper side of the connecting plate (42) is set as an inclined surface.
6. The device for resource utilization of riverway silt according to claim 1, characterized in that, A fixed plate (51) is slidably connected inside the drying box (1), and the fixed plate (51) is provided with a plurality of bristles (53) that act on the conveyor belt (3).
7. The device for resource utilization of riverway silt according to claim 6, characterized in that, A spring (52) is fixedly connected to the fixed plate (51). One end of the spring (52) is fixedly connected to the drying box (1). The spring (52) causes the fixed plate (51) to have a tendency to move left and right. A touch plate (54) is fixedly connected to the fixed plate (51). A connecting ball (55) that acts on the touch plate (54) is fixedly connected to the conveyor belt (3).