Livestock manure dewatering device

Abstract

The present application relates to the technical field of sewage treatment, and particularly relates to a livestock manure dewatering device, which comprises a stacked-screw dewatering machine body, one side of the stacked-screw dewatering machine body is provided with a dewatering assembly, the dewatering assembly is used for performing secondary dewatering work on animal manure that has completed preliminary dewatering work through the stacked-screw dewatering machine body, the dewatering assembly comprises a dewatering frame, the lower end of the dewatering frame is provided with a conveying belt in a transmission mode, a plurality of fine through holes are uniformly and interval provided on the surface of the conveying belt, one side of the upper end of the dewatering frame is provided with a squeezing belt in a transmission mode, both sides between the squeezing belt and the conveying belt are provided with pressing plates, and the conveying belt, the squeezing belt and the pressing plates complete secondary squeezing dewatering work on manure through mutual cooperation. Compared with the prior art, the present application solves the problem that the overall processing period is high due to poor dewatering treatment effect of the stacked-screw dewatering machine on manure in the prior art.

Description

Technical Field

[0001] This invention relates to the field of waste treatment technology, and in particular to a dehydration device for livestock manure. Background Technology

[0002] Animal husbandry is the production sector that utilizes domesticated animals such as livestock and poultry to convert plant energy such as pasture and feed into animal energy through artificial breeding and raising, in order to obtain livestock products such as meat, eggs, milk, wool, cashmere, hides, silk, and medicinal materials. Animal husbandry generates a large amount of waste every day. This wastewater contains pollutants such as feces, feed residues, and drug residues. Specifically, animal husbandry wastewater mainly comes from the feces of the animals raised. This feces is rich in organic matter, nitrogen, phosphorus, potassium, and other nutrients, making it a high-quality agricultural organic fertilizer resource. Dehydration is a key step before the resource utilization of feces. Through dehydration, the volume and weight of feces can be significantly reduced, making it easier for subsequent treatment and utilization.

[0003] In the prior art, Chinese patent document CN204569689U discloses a mobile high-efficiency solid-liquid separation device for sewage, including a sludge suction device connected to an air flotation tank. A scraper is installed at the top of the air flotation tank, comprising an inlet end and an outlet end. A sludge dewatering machine is connected to the side wall of the air flotation tank corresponding to the outlet end, comprising an inlet end and an outlet end, the outlet end being connected to the air flotation tank. A filter device is installed at the bottom of the air flotation tank. Although this application, through the combination of a vacuum pump, air flotation tank, and screw press, has a simple structure, low cost, and convenient operation, and can quickly and effectively separate any solid-liquid mixture such as feces and sludge, this technology is consistent with traditional methods in that it uses a screw press to dewater the feces. While screw press sludge dewatering machines can remove most of the water when dewatering feces, they often cannot guarantee extremely high dewatering efficiency. This is mainly because feces have a complex composition, containing a large amount of fiber, organic matter, and particles of different sizes. These components are prone to forming flocs or clogging the dewatering channels during the dewatering process, affecting dewatering efficiency. Although screw press dewatering machines dewater materials through screw extrusion, their dewatering efficiency and effect are limited by the properties of the material, particle size distribution, and the design parameters of the dewatering machine. In particular, for feces with high water content and strong viscosity, screw press machines are prone to incomplete dewatering and high moisture content in the filter cake, resulting in the dewatered feces still needing a long period of natural drying to reach ideal storage and transportation conditions.

[0004] Furthermore, we disclose a livestock manure dewatering device to meet the practical needs of existing technologies that use screw press dewatering machines for manure dewatering, which have poor dewatering effects and result in long overall processing cycles. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a livestock manure dehydration device to solve the problem that the existing technology of using a screw press dehydrator to dehydrate manure has poor dehydration effect, resulting in a long overall processing cycle.

[0006] To achieve the above objectives, the present invention provides a livestock manure dewatering device, comprising a screw press dewatering machine body. A dewatering component is provided on one side of the screw press dewatering machine body. The dewatering component is used to further dewater animal manure that has undergone preliminary dewatering by the screw press dewatering machine body. The dewatering component includes a dewatering frame. A conveyor belt is driven to the lower end of the dewatering frame. The surface of the conveyor belt has a plurality of fine through holes evenly spaced. A compression belt is driven to the upper side of the dewatering frame. Pressure plates are provided on both sides between the compression belt and the conveyor belt. The conveyor belt, compression belt, and pressure plates cooperate to perform a second compression and dewatering of the manure. A tension adjustment component is provided at the upper side of the dewatering frame. The tension adjustment component is used to adjust the tension of the compression belt.

[0007] Preferably, a drive motor is provided on the side of the screw press dewatering machine body away from the dewatering frame. The drive motor is mounted on the screw press dewatering machine body via a motor frame, and the output end of the drive motor is connected to the screw shaft inside the screw press dewatering machine body via a universal joint.

[0008] Preferably, the conveyor belt has multiple conveying rollers internally connected to its transmission, and the extrusion belt has multiple extrusion rollers internally connected to its transmission. Both ends of the conveying rollers and the extrusion rollers are rotatably connected to the dewatering frame via bearing seats. A first transmission group is provided in the middle of one side end face of the dewatering frame. The first transmission group includes a driving sprocket, two driven sprockets, and a chain connected to the outside of the sprockets. A first servo motor is provided on one side of the first transmission group. The output end of the first servo motor is fixedly connected to the driving sprocket in the first transmission group. The first servo motor is mounted on the dewatering frame via a motor frame. One of the driven sprockets is fixedly connected to the conveying roller inside the conveyor belt.

[0009] Preferably, a limiting roller is provided on one side of the upper middle part of the conveyor belt, and both ends of the limiting roller are engaged and rotatably connected to the dewatering frame. An auger rod is provided on one side of the limiting roller, and both ends of the auger rod are rotatably connected to the dewatering frame, with one end fixedly connected to another driven sprocket in the first transmission group.

[0010] Preferably, a second transmission group is provided on one side of the dehydration rack. The second transmission group includes a driving sprocket, two driven sprockets, and a chain that is connected to the outside of the sprockets. A second servo motor is mounted on a motor frame at one corner of one end face of the dehydration rack. The output end of the second servo motor is fixedly connected to the driving sprocket in the second transmission group. One of the driven sprockets in the second transmission group is fixedly connected to the extrusion roller inside the extrusion belt.

[0011] Preferably, a rotating shaft is fixedly connected to the middle of another driven sprocket in the second transmission group. Both ends of the rotating shaft pass through the dehydration frame and are fixedly connected to a rotating plate. The rotating shaft is engaged and rotatably connected to the dehydration frame. A guide ring plate is fixedly connected to one side of the outer wall of the rotating plate. The guide ring plate is sloping.

[0012] Preferably, the two pressure plates are arc-shaped and expand outward on the side near the auger rotating rod. A pressure rod is fixedly connected to the middle of the outer wall of the pressure plate near the rotating plate. A telescopic spring is sleeved on the outside of the pressure rod. The two ends of the telescopic spring are fixedly connected to the pressure plate and the dehydration frame, respectively. One end of the pressure rod passes through the dehydration frame and contacts the end face of the rotating plate near the dehydration frame. The distance between the pressure rod and the center of the rotating plate is equal to the distance between the guide ring plate and the center of the rotating plate.

[0013] Preferably, the upper and lower ends of the pressure plate are provided with multiple rotating balls, and the two ends of the pressure plate near the rotating plate are fixedly connected with guide rods. Both guide rods pass through the dehydration frame and are slidably connected to the dehydration frame.

[0014] Preferably, the tension adjustment assembly includes an adjustment roller disposed at the upper end of the inside of the extrusion belt. The adjustment roller is drivenly connected to the extrusion belt. Both ends of the adjustment roller are fixedly connected to a retaining shaft. A sliding seat is rotatably connected to the outside of both retaining shafts. Rectangular grooves are opened on both sides of the upper end of the dehydration frame. The sliding seat is slidably connected inside the rectangular groove. Mounting blocks are fixedly connected to the upper and lower ends of one side end face of the dehydration frame at the rectangular groove. A screw is rotatably connected between the two mounting blocks. A transmission block is threadedly connected to the middle of the screw. One end of the transmission block is fixedly connected to the sliding seat. A return spring seat is fixedly connected to the middle of the inner bottom surface of the rectangular groove. The upper end of the return spring seat is fixedly connected to the sliding seat.

[0015] Preferably, a fixed base is fixedly connected to one side of the upper end of the dewatering rack. The fixed base is located at the output end of the screw press dewatering machine body. A baffle plate is provided in the middle of the side of the fixed base away from the screw press dewatering machine body. The side of the baffle plate near the fixed base is spherical. A connecting rod is fixedly connected to the upper end of the outer wall of the baffle plate. One end of the connecting rod is fixedly connected to the fixed base. A discharge plate is fixedly connected to the lower end of the middle of the side face of the fixed base away from the screw press dewatering machine body. The discharge plate is inclined.

[0016] The beneficial effects of this invention are: This livestock manure dewatering device utilizes a screw press dewatering machine to perform initial dewatering of animal manure. It then employs a dewatering component to further compress and dewater the manure. Pressure plates between the compression belt and the conveyor belt in the dewatering component work together to compress the manure, and the squeezed water is discharged through tiny holes on the conveyor belt surface, effectively improving dewatering efficiency. Furthermore, the addition of a tension adjustment component allows for flexible adjustment of the compression belt tension according to actual needs, ensuring the stability and efficiency of the dewatering process, improving the dewatering effect on the manure, reducing the waiting time required for subsequent natural drying, and shortening the overall processing cycle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the dehydration component of the present invention; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the dehydration component of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a three-dimensional schematic diagram of the internal structure of the dehydration rack of the present invention; Figure 6 for Figure 5 Enlarged view of point B in the middle; Figure 7 This is a schematic diagram of the three-dimensional structure of the dehydration component of the present invention.

[0019] The diagram is marked as follows: 1. Screw press dewatering machine body; 2. Dewatering frame; 3. Fixed base; 4. Extrusion belt; 5. Rotating plate; 6. Screw; 7. Conveyor belt; 8. Screw rotor; 9. First transmission group; 10. Adjusting roller; 11. Extrusion roller; 12. Rotating shaft; 13. Limiting roller; 14. Conveying roller; 15. Connecting rod; 16. Material stop plate; 17. Discharge plate; 18. Pressure plate; 19. Telescopic spring; 20. Pressure rod; 21. Guide rod; 22. Guide ring plate; 23. Mounting block; 24. Transmission block; 25. Rectangular groove; 26. Sliding seat; 27. Shaft retainer; 28. Rotating ball; 29. ​​Return spring seat; 30. First servo motor; 31. Second servo motor; 32. Universal joint; 33. Drive motor; 34. Second transmission group. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 7 As shown, a livestock manure dewatering device includes a screw press dewatering machine body 1. A dewatering component is provided on one side of the screw press dewatering machine body 1. The dewatering component is used to further dewater the animal manure that has undergone preliminary dewatering by the screw press dewatering machine body 1. The dewatering component includes a dewatering frame 2. A conveyor belt 7 is driven to the lower end of the dewatering frame 2. Multiple fine through holes are evenly spaced on the surface of the conveyor belt 7. A compression belt 4 is driven to the upper side of the dewatering frame 2. Pressure plates 18 are provided on both sides between the compression belt 4 and the conveyor belt 7. The conveyor belt 7, compression belt 4, and pressure plates 18 cooperate with each other to complete the further compression and dewatering of the manure. A tension adjustment component is provided on the upper side of the dewatering frame 2. The tension adjustment component is used to adjust the tension of the compression belt 4.

[0023] This livestock wastewater treatment system utilizes a screw press dewatering machine body 1 to perform preliminary dewatering of animal manure. It also employs a dewatering assembly to further dewater the manure through compression. The pressure plate 18 between the compression belt 4 and the conveyor belt 7 in the dewatering assembly works in conjunction to compress the manure. The squeezed water is discharged through tiny holes on the surface of the conveyor belt 7, effectively improving dewatering efficiency. Furthermore, the addition of a tension adjustment assembly allows for flexible adjustment of the tension of the compression belt 4 according to actual needs, ensuring the stability and efficiency of the dewatering process, improving the dewatering effect on the manure, reducing the waiting time required for subsequent natural drying, and shortening the overall treatment cycle.

[0024] Furthermore, such as Figure 1 As shown, a drive motor 33 is provided on the side of the screw press dewatering machine body 1 away from the dewatering frame 2. The drive motor 33 is mounted on the screw press dewatering machine body 1 through a motor frame. The output end of the drive motor 33 is connected to the screw shaft inside the screw press dewatering machine body 1 through a universal joint 32. Animal manure is fed into the screw press dewatering machine body 1, where it undergoes preliminary dewatering by the internal screw shaft. The drive motor 33 is securely mounted on the screw press dewatering machine body 1 via a motor frame. The output end of the drive motor 33 is connected to the screw shaft inside the screw press dewatering machine body 1 by a universal joint 32. The universal joint 32 is introduced mainly to reduce noise and friction during transmission, ensure the smoothness and efficiency of power transmission, and extend the service life of the equipment.

[0025] Furthermore, such as Figures 2 to 3 As shown, the conveyor belt 7 has multiple conveying rollers 14 internally connected to its transmission system, and the extrusion belt 4 has multiple extrusion rollers 11 internally connected to its transmission system. Both ends of the conveying rollers 14 and the extrusion rollers 11 are rotatably connected to the dewatering frame 2 via bearing seats. A first transmission group 9 is located in the middle of one end face of the dewatering frame 2. The first transmission group 9 includes one driving sprocket, two driven sprockets, and a chain connected to the outside of the sprockets. A first servo motor 30 is located on one side of the first transmission group 9. The output of the first servo motor 30... The first servo motor 30 is fixedly connected to the drive sprocket in the first transmission group 9. The first servo motor 30 is mounted on the dehydration frame 2 through the motor frame. One of the driven sprockets is fixedly connected to the conveyor roller 14 inside the conveyor belt 7. A limit roller 13 is provided on one side of the upper middle part of the conveyor belt 7. Both ends of the limit roller 13 are engaged and rotatably connected to the dehydration frame 2. An auger rod 8 is provided on one side of the limit roller 13. Both ends of the auger rod 8 are rotatably connected to the dehydration frame 2 and one end is fixedly connected to another driven sprocket in the first transmission group 9. The conveyor belt 7 has multiple conveying rollers 14 inside, while the extrusion belt 4 has multiple extrusion rollers 11 inside. Both ends of these rollers are rotatably connected to the dewatering frame 2 via bearing seats. During operation, a first transmission group 9 is installed in the middle of one side end face of the dewatering frame 2. The first transmission group 9 consists of a driving sprocket, two driven sprockets, and a chain connecting them, forming a compact and efficient transmission system. A first servo motor 30 is securely mounted on the dewatering frame 2 via a motor frame, and its output end is fixedly connected to the driving sprocket in the first transmission group 9, thus providing a power source. When the first servo motor 30 starts, it drives the driving sprocket to rotate, which in turn drives the two driven sprockets to rotate synchronously via the chain. One of the driven sprockets is fixedly connected to the conveying rollers 14 inside the conveyor belt 7. Therefore, the conveyor belt 7 moves with the rotation of the driven sprocket, achieving continuous transport of feces. The second transmission group 34 drives the extrusion belt via a second servo motor 31. 4. Rotation: The first transmission group 9 drives the conveyor belt 7 to rotate via the first servo motor 20. When the feces on the conveyor belt 7 move to the lower end of the extrusion belt 4, the extrusion and dehydration of the feces are completed. The limiting roller 13 is set on one side of the upper middle part of the conveyor belt 7, and both ends of it are engaged and rotatably connected to the dehydration frame 2. This design not only ensures that the limiting roller 13 can stably support the conveyor belt 7 and prevent it from shifting or loosening during operation, but also ensures that the auger rod 8 is set on one side of the limiting roller 13, and both ends of it are rotatably connected to the dehydration frame 2. One end is fixedly connected to another driven sprocket in the first transmission group 9. This configuration allows the auger rod 8 to rotate synchronously with the rotation of the first transmission group 9. The auger blades equipped on the auger rod 8 play a crucial role in the rotation process. They are like small shovels, constantly spreading the feces accumulated on the conveyor belt 7, ensuring that the feces can be evenly distributed within the width range of the conveyor belt 7.

[0026] Furthermore, such as Figures 2 to 5 and Figure 7As shown, a second transmission group 34 is provided on one side of the dehydration rack 2. The second transmission group 34 includes a driving sprocket, two driven sprockets, and a chain connected to the outside of the sprockets. A second servo motor 31 is mounted on a motor frame at one corner of one end face of the dehydration rack 2. The output end of the second servo motor 31 is fixedly connected to the driving sprocket in the second transmission group 34. One of the driven sprockets in the second transmission group 34 is fixedly connected to the extrusion roller 11 inside the extrusion belt 4. A rotating shaft 12 is fixedly connected to the middle of the other driven sprocket in the second transmission group 34. Both ends of the rotating shaft 12 pass through the dehydration rack 2 and are fixedly connected to a rotating plate 5. The rotating shaft 12 is engaged and rotatably connected to the dehydration rack 2. A guide ring plate 22 is fixedly connected to one side of the outer wall of the rotating plate 5. The guide ring plate 22 is sloping. The two pressure plates 18 are arc-shaped and expand outward on the side near the auger rod 8. A pressure rod 20 is fixedly connected to the middle of the outer wall of the pressure plate 18 near the rotating plate 5. A telescopic spring 19 is sleeved on the outside of the pressure rod 20. The two ends of the telescopic spring 19 are fixedly connected to the pressure plate 18 and the dehydration frame 2, respectively. One end of the pressure rod 20 passes through the dehydration frame 2 and contacts the end face of the rotating plate 5 near the dehydration frame 2. The distance between the pressure rod 20 and the center of the rotating plate 5 is equal to the distance between the guide ring plate 22 and the center of the rotating plate 5. Multiple rotating balls 28 are provided at the upper and lower ends of the pressure plate 18. Guide rods 21 are fixedly connected to both ends of the end face of the pressure plate 18 near the rotating plate 5. Both guide rods 21 pass through the dehydration frame 2 and are slidably connected to the dehydration frame 2. The second transmission group 34 consists of a driving sprocket, two driven sprockets, and an external chain, forming a closed-loop transmission chain. The second servo motor 31 serves as the power source for this system, and its output end is fixedly connected to the driving sprocket in the second transmission group 34, thereby driving the entire transmission group to rotate. One of the driven sprockets is fixedly connected to the squeezing roller 11 inside the squeezing belt 4, ensuring that the squeezing belt 4 can move smoothly with the rotation of the second transmission group 34, realizing continuous squeezing and dehydration of feces. The middle of the other driven sprocket is fixedly connected to a rotating shaft 12, and both ends of the rotating shaft 12 pass through the dehydration frame 2 and are fixedly connected to the rotating plate 5 outside the dehydration frame 2. Meanwhile, the rotating shaft 12 is also engaged and rotatably connected to the dehydration rack 2. This design ensures that the rotating plate 5 can rotate with the rotating shaft 12 while maintaining the stability of the rotating plate 5 during rotation. A sloped guide ring plate 22 is fixedly connected to one side of the outer wall of the rotating plate 5. This design cleverly utilizes the guiding effect of the sloped structure. When the second servo motor 31 drives the second transmission group 34 to rotate, the rotating plate 5 and the guide ring plate 22 will also rotate. Since the guide ring plate 22 is sloped, it will contact the pressure rod 20 during rotation and push the pressure rod 20 to move. One end of the pressure rod 20 contacts the end face of the rotating plate 5 near the dehydration rack 2, and the other end contacts the pressure plate 12. The pressure rod 20 is fixedly connected to the middle of the outer wall near the rotating plate 5. Simultaneously, a telescopic spring 19 is sleeved on the outside of the pressure rod 20. The two ends of the telescopic spring 19 are fixedly connected to the pressure plate 18 and the dehydration frame 2, respectively. This design allows the pressure plate 18 to move the same distance when pushed by the guide ring plate 22. This allows the feces to be dehydrated through the squeezing action of the conveyor belt 7 and the extrusion belt 4, as well as the mutual squeezing action of the two pressure plates 18. This achieves a second dehydration of the feces. When the rotating plate 5 continues to rotate and the pressure rod 20 contacts the rotating plate 5, the pressure plate 18 is reset by the telescopic spring 19, allowing for the next reciprocating squeezing and dehydration of the feces. The side of the pressure plate 18 closest to the auger lever 8 is arc-shaped and expands outward. This design helps the feces on the conveyor belt 7 to enter between the two pressure plates 18, ensuring that the feces can be squeezed evenly during the dehydration process. At the same time, multiple rotating balls 28 are provided at the upper and lower ends of the pressure plate 18, which helps to reduce the friction between the pressure plate 18 and the extrusion belt 4 and the conveyor belt 7, improving the durability of the equipment. In addition, guide rods 21 are fixedly connected to both ends of the end face of the pressure plate 18 closest to the rotating plate 5. The guide rods 21 pass through the dehydration frame 2 and are slidably connected to the dehydration frame 2. This design ensures that the pressure plate 18 can maintain a stable movement trajectory during the extrusion process.

[0027] Furthermore, such as Figure 5 and Figure 6As shown, the tension adjustment assembly includes an adjustment roller 10 disposed at the upper end of the inside of the extrusion belt 4. The adjustment roller 10 is connected to the extrusion belt 4 via a drive. Both ends of the adjustment roller 10 are fixedly connected to a retaining shaft 27. The two retaining shafts 27 are rotatably connected to a sliding seat 26. The upper end of the dehydration frame 2 has rectangular grooves 25 on both sides. The sliding seat 26 is slidably connected inside the rectangular groove 25. One side end face of the dehydration frame 2 is fixedly connected to the upper and lower ends of the rectangular groove 25 with mounting blocks 23. The two mounting blocks 23 are rotatably connected to a screw 6. The middle part of the screw 6 is threadedly connected to a transmission block 24. One end of the transmission block 24 is fixedly connected to the sliding seat 26. The middle part of the inner bottom surface of the rectangular groove 25 is fixedly connected to a return spring seat 29. The upper end of the return spring seat 29 is fixedly connected to the sliding seat 26. The adjusting roller 10 is located at the upper end inside the extrusion belt 4 and is connected to the extrusion belt 4 via a transmission connection. This ensures that the extrusion belt 4 can move smoothly as the adjusting roller 10 rotates. Both ends of the adjusting roller 10 are fixedly connected to a retaining shaft 27, and a sliding seat 26 is rotatably connected to the outside of the retaining shaft 27. This design allows the adjusting roller 10 to rotate stably under the support of the sliding seat 26, while the sliding seat 26 can move along a certain trajectory, thereby adjusting the tension of the extrusion belt 4. Rectangular grooves 25 are provided on both sides of the upper end of the dewatering frame 2. The sliding seat 26 is slidably connected inside the rectangular groove 25, which restricts the movement direction of the sliding seat 26 and ensures that the adjusting roller 10 can move along a predetermined trajectory. Mounting blocks 23 are fixedly connected to the upper and lower ends of one side end face of the dewatering frame 2 at the rectangular groove 25. A screw 6 is rotatably connected between the two mounting blocks 23. This design allows the screw 6 to act as a transmission component, driving the transmission block 24 to move by rotation. A transmission block 24 is threadedly connected to the middle of the screw 6. One end of the transmission block 24 is fixedly connected to the sliding seat 26. Therefore, when the screw 6 rotates, the transmission block 24 moves along the thread direction of the screw 6, thereby driving the sliding seat 26 to slide inside the rectangular groove 25. In this way, by rotating the screw 6, the position of the adjusting roller 10 can be adjusted, thereby adjusting the tension of the extrusion belt 4. In addition, a return spring seat 29 is fixedly connected to the middle of the inner bottom surface of the rectangular groove 25. The upper end of the return spring seat 29 is fixedly connected to the sliding seat 26. This design allows the return spring seat 29 to provide a certain restoring force to the sliding seat 26 through its internal return spring after the screw 6 is rotated to adjust the tension of the extrusion belt 4. This allows the sliding seat 26 to quickly return to its initial position after being subjected to external force, thereby maintaining the stable tension of the extrusion belt 4. Furthermore, the elastic force of the return spring seat 29 provides a certain anti-loosening capability between the screw 6 and the transmission block 24.

[0028] Furthermore, such as Figure 3 and Figure 4As shown, a fixed base 3 is fixedly connected to one side of the upper end of the dewatering rack 2. The fixed base 3 is located at the output end of the screw press dewatering machine body 1. A baffle plate 16 is provided in the middle of the side of the fixed base 3 away from the screw press dewatering machine body 1. The side of the baffle plate 16 near the fixed base 3 is spherical. A connecting rod 15 is fixedly connected to the upper end of the outer wall of the baffle plate 16. One end of the connecting rod 15 is fixedly connected to the fixed base 3. A discharge plate 17 is fixedly connected to the lower end of the middle of the side face of the fixed base 3 away from the screw press dewatering machine body 1. The discharge plate 17 is inclined. The fixed base 3 is designed at the output end of the screw press dewatering machine body 1 to receive and support the dewatered manure material. A baffle plate 16 is set in the middle of the side of the fixed base 3 away from the screw press dewatering machine body 1. The side of the baffle plate 16 near the fixed base 3 adopts a spherical design. This shape not only helps the material to slide smoothly on the baffle plate 16, but also reduces the friction between the material and the baffle plate 16 to a certain extent, avoiding the accumulation and adhesion of the material. The upper end of the outer wall of the baffle plate 16 is fixedly connected to the fixed base 3 through the connecting rod 15. This structure ensures the stability and reliability of the baffle plate 16. In addition, an inclined discharge plate 17 is also fixedly connected to the lower end of the middle of the side face of the fixed base 3 away from the screw press dewatering machine body 1. The inclined design of the discharge plate 17 allows the material to slide naturally under the action of gravity, thereby realizing the smooth discharge of the material.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0030] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A livestock manure dewatering device, comprising a screw press dewatering machine body (1), characterized in that: A dehydration component is provided on one side of the screw press dehydrator body (1). The dehydration component is used to dehydrate animal feces that have undergone preliminary dehydration by the screw press dehydrator body (1) again. The dehydration component includes a dehydration frame (2). A conveyor belt (7) is driven at the lower end of the dehydration frame (2). Multiple tiny through holes are evenly spaced on the surface of the conveyor belt (7). A squeezing belt (4) is driven on one side of the upper end of the dehydration frame (2). Pressure plates (18) are provided on both sides between the squeezing belt (4) and the conveyor belt (7). The conveyor belt (7), squeezing belt (4), and pressure plates (18) cooperate with each other to complete the secondary squeezing and dehydration of the feces. A tension adjustment component is provided on the upper side of one side of the dehydration frame (2). The tension adjustment component is used to adjust the tension of the squeezing belt (4). A second transmission group (34) is provided on one side of the dehydration rack (2). The second transmission group (34) includes a driving sprocket, two driven sprockets, and a chain connected to the outside of the sprockets. A second servo motor (31) is mounted on a motor frame at one corner of one end face of the dehydration rack (2). The output end of the second servo motor (31) is fixedly connected to the driving sprocket in the second transmission group (34). One of the driven sprockets in the second transmission group (34) is fixedly connected to the extrusion roller (11) inside the extrusion belt (4). A rotating shaft (12) is fixedly connected to the middle of the other driven sprocket in the second transmission group (34). Both ends of the rotating shaft (12) pass through the dehydration rack (2) and are fixedly connected to a rotating plate (5). The rotating shaft (12) is connected to the dehydration rack (2). The frame (2) is engaged and rotated. A guide ring plate (22) is fixedly connected to one side of the outer wall of the rotating plate (5). The guide ring plate (22) is sloping. The two pressure plates (18) are arc-shaped and expand outward on the side near the auger rod (8). A pressure rod (20) is fixedly connected to the middle of the outer wall of the pressure plate (18) near the rotating plate (5). A telescopic spring (19) is sleeved on the outside of the pressure rod (20). The two ends of the telescopic spring (19) are fixedly connected to the pressure plate (18) and the dehydration frame (2) respectively. One end of the pressure rod (20) passes through the dehydration frame (2) and contacts the end face of the rotating plate (5) near the dehydration frame (2). The distance between the pressure rod (20) and the center of the rotating plate (5) is equal to the distance between the guide ring plate (22) and the center of the rotating plate (5).

2. The livestock manure dewatering device according to claim 1, characterized in that: A drive motor (33) is provided on the side of the screw dewatering machine body (1) away from the dewatering frame (2). The drive motor (33) is mounted on the screw dewatering machine body (1) through a motor frame. The output end of the drive motor (33) is connected to the screw shaft inside the screw dewatering machine body (1) through a universal joint (32).

3. The livestock manure dewatering device according to claim 2, characterized in that: The conveyor belt (7) has multiple conveyor rollers (14) internally connected to the conveyor belt (7), and the extrusion belt (4) has multiple extrusion rollers (11) internally connected to the extrusion rollers (11). Both ends of the conveyor rollers (14) and the extrusion rollers (11) are rotatably connected to the dehydration rack (2) through bearing seats. A first transmission group (9) is provided in the middle of one side end face of the dehydration rack (2). The first transmission group (9) includes a driving sprocket, two driven sprockets, and a chain connected to the outside of the sprockets. A first servo motor (30) is provided on one side of the first transmission group (9). The output end of the first servo motor (30) is fixedly connected to the driving sprocket in the first transmission group (9). The first servo motor (30) is mounted on the dehydration rack (2) through a motor frame. One of the driven sprockets is fixedly connected to the conveyor rollers (14) inside the conveyor belt (7).

4. The livestock manure dewatering device according to claim 3, characterized in that: A limiting roller (13) is provided on one side of the upper middle part of the conveyor belt (7). Both ends of the limiting roller (13) are engaged and rotatably connected to the dehydration frame (2). An auger rod (8) is provided on one side of the limiting roller (13). Both ends of the auger rod (8) are rotatably connected to the dehydration frame (2), and one end is fixedly connected to another driven sprocket in the first transmission group (9).

5. The livestock manure dewatering device according to claim 4, characterized in that: Multiple rotating balls (28) are provided at both the upper and lower ends of the pressure plate (18). Guide rods (21) are fixedly connected to both ends of the pressure plate (18) near the rotating plate (5). Both guide rods (21) pass through the dehydration rack (2) and are slidably connected to the dehydration rack (2).

6. The livestock manure dewatering device according to claim 1, characterized in that: The tension adjustment assembly includes an adjustment roller (10) disposed at the upper end of the inside of the extrusion belt (4). The adjustment roller (10) is connected to the extrusion belt (4) via a drive. Both ends of the adjustment roller (10) are fixedly connected to a retaining pin (27). The two retaining pins (27) are rotatably connected to a sliding seat (26) on their outer sides. The upper ends of the dehydration frame (2) are provided with rectangular grooves (25). The sliding seat (26) is slidably connected inside the rectangular grooves (25). 2) One side end face is fixedly connected to the upper and lower ends of the rectangular groove (25) with mounting blocks (23). The two mounting blocks (23) are engaged and rotatably connected with a screw (6). The middle part of the screw (6) is threadedly connected to a transmission block (24). One end of the transmission block (24) is fixedly connected to the sliding seat (26). The middle part of the inner bottom surface of the rectangular groove (25) is fixedly connected to a reset spring seat (29). The upper end of the reset spring seat (29) is fixedly connected to the sliding seat (26).

7. The livestock manure dewatering device according to claim 6, characterized in that: A fixed seat (3) is fixedly connected to one side of the upper end of the dewatering rack (2). The fixed seat (3) is located at the output end of the screw press dewatering machine body (1). A baffle plate (16) is provided in the middle of the side of the fixed seat (3) away from the screw press dewatering machine body (1). The side of the baffle plate (16) close to the fixed seat (3) is spherical. A connecting rod (15) is fixedly connected to the upper end of the outer wall of the baffle plate (16). One end of the connecting rod (15) is fixedly connected to the fixed seat (3). A discharge plate (17) is fixedly connected to the lower end of the middle of the side face of the fixed seat (3) away from the screw press dewatering machine body (1). The discharge plate (17) is inclined.

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