A livestock farm manure dewatering treatment equipment

Abstract

This utility model discloses a manure dewatering treatment device for livestock farms, relating to the technical field of dewatering equipment. The utility model includes a dewatering tank, with a centrifugal dewatering component fixedly connected to the bottom of the tank, and a filter press component fixedly connected to the top of the centrifugal dewatering component. This utility model employs a composite process of "filter press pretreatment + centrifugal deep dewatering." The filter press component uses a hydraulic telescopic rod to drive a pressure plate to initially compress the manure, effectively separating large particles and discharging free water, reducing the manure's moisture content. This provides high-quality material with low load and high solids content for subsequent centrifugal treatment. The drive motor of the centrifugal dewatering component drives the centrifugal tank to rotate at high speed, further separating the filtered material using a filter cloth. Centrifugal force throws out colloidal water and fine particles, ultimately further reducing the solid phase moisture content, meeting the requirements for resource utilization such as composting and organic fertilizer production.

Description

Technical Field

[0001] This utility model belongs to the technical field of dehydration equipment, and in particular relates to a dehydration treatment device for livestock farm manure. Background Technology

[0002] In modern livestock and poultry farming, the efficient treatment of manure and wastewater is a crucial link in environmental protection and resource recycling. Manure typically has a moisture content as high as 70%-90%, and direct discharge or stockpiling not only occupies a large amount of land but also leads to environmental problems such as eutrophication of water bodies, soil pollution, and the emission of foul odors. Therefore, reducing the moisture content of manure through dehydration is an important preliminary step for subsequent composting, energy conversion (such as biogas production), or use as a raw material for organic fertilizer.

[0003] Traditional manure dewatering technologies mainly include filter press, centrifugation, and natural drying. Natural drying relies on climate conditions, has a long processing cycle, and is prone to secondary pollution, so it has been gradually phased out. Filter press uses mechanical pressure to squeeze water out of manure, which has the advantages of simple equipment structure and low initial investment. However, the single filter press process has significant drawbacks: on the one hand, fibrous impurities and undigested feed particles in the manure easily clog the filter cloth, leading to increased filtration resistance, decreased dewatering efficiency, and the need for frequent cleaning of the filter cloth, resulting in high manual maintenance costs; on the other hand, the pressure distribution during the filter press process is uneven, making it difficult to deeply dewater manure with high viscosity and high solids content. The final moisture content is usually still higher than 60%, which cannot meet the moisture content requirements for subsequent resource utilization (such as composting, which requires a moisture content of ≤50%).

[0004] Centrifugation utilizes the centrifugal force generated by high-speed rotation to achieve solid-liquid separation, offering advantages such as large processing capacity and high automation. However, its standalone application also faces technical bottlenecks: First, the lack of effective pretreatment before centrifugation means that large particles in the feces (such as hair and gravel) can easily damage the centrifuge rotor, and the direct entry of feces with high water content into the centrifuge device can lead to increased centrifugal load and significantly higher energy consumption. Second, the single centrifugation process is not effective in separating colloidal organic matter; after dehydration, the solid phase still has a high water content, and the suspended solids content in the liquid phase exceeds the standard, failing to meet wastewater discharge standards.

[0005] To address these issues, we provide a dehydration treatment device for livestock manure to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a manure dewatering treatment device for livestock farms. By combining a filter press component and a centrifugal dewatering component, it solves the problems of low dewatering efficiency, high energy consumption, and difficulty in meeting the deep dewatering needs of different types of manure in the existing dewatering treatment equipment with a single process.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to a manure dewatering treatment device for livestock farms, comprising a dewatering bucket, a centrifugal dewatering assembly fixedly connected to the bottom of the dewatering bucket, a filter press assembly fixedly connected to the top of the centrifugal dewatering assembly, a drive motor fixedly connected to the bottom of the dewatering bucket, the output shaft of the drive motor penetrating into the inner cavity of the dewatering bucket and inserted into a centrifugal barrel, a filter cloth covered on the surface of the centrifugal barrel, a fastening ring threadedly connected to the surface of the centrifugal barrel and outside the filter cloth, and a mounting bracket fixedly connected to the top of the surface of the centrifugal barrel, a hydraulic telescopic rod one fixedly connected between three mounting brackets, a pressure plate fixedly connected to the bottom of the hydraulic telescopic rod one, the bottom of the pressure plate extending into the inner cavity of the centrifugal barrel, a mounting plate fixedly connected to the top of the surface of the centrifugal barrel via a bearing, a hydraulic telescopic rod two inserted into the bottom of the mounting plate, and the bottom of the hydraulic telescopic rod two fixedly connected to the surface of the dewatering bucket via a fixing plate.

[0009] The present invention is further configured such that a heating block is fixedly connected to the inner wall of the dehydration tank, and a rinsing nozzle is fixedly connected to the inner wall of the dehydration tank and located between the two heating blocks. The heating block can preheat the feces to reduce viscosity and improve the filtration efficiency. The rinsing nozzle is used to automatically clean the filter cloth and the tank wall after operation, reducing impurity residue and manual maintenance.

[0010] The present invention is further configured such that a drain pipe is connected to the bottom of one side of the dehydration tank, and a valve is fixedly connected to the inner cavity of the drain pipe. The drain pipe and valve are designed to facilitate the centralized collection and discharge of the separated liquid, in conjunction with subsequent sewage treatment processes.

[0011] The present invention is further configured such that the bottom of the dehydration tank is fixedly connected to a support leg, and a support plate is fixedly connected between the four support legs. The bottom of the drive motor is fixedly connected to the top of the support plate. The support legs and the support plate enhance the stability of the equipment. The drive motor is fixed to the support plate to avoid vibration and displacement during high-speed operation.

[0012] The present invention is further configured such that a connecting column is fixedly connected to the bottom axis of the centrifuge tank, and a hexagonal hole is opened at the bottom of the connecting column. A hexagonal prism that matches the hexagonal hole is fixedly connected to the top of the output shaft of the drive motor. The matching structure of the hexagonal hole and the hexagonal prism enables quick disassembly and assembly of the centrifuge tank and the drive motor, which facilitates equipment maintenance and component replacement.

[0013] The present invention is further configured such that a universal wheel is fixedly connected to the bottom of the centrifuge tank, and the bottom of the universal wheel contacts the bottom of the inner cavity of the dehydration tank. The universal wheel at the bottom of the centrifuge tank contacts the bottom of the inner cavity of the dehydration tank, which helps the centrifuge tank move smoothly during filtration and reduces frictional resistance.

[0014] The present invention is further configured such that limiting wheels are fixedly connected to both the upper and lower ends of the inner cavity of the dehydration tank, the surface of the limiting wheel is in contact with the surface of the filter cloth, and the limiting wheel fits against the surface of the filter cloth to prevent the filter cloth from wrinkling or shifting during centrifugal rotation, thus ensuring the continuity and reliability of solid-liquid separation.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model adopts a composite process of "pressure filtration pretreatment + centrifugal deep dehydration". The pressure filtration component uses a hydraulic telescopic rod to drive the pressure plate to initially squeeze the feces, effectively separating large particle impurities and discharging free water, reducing the moisture content of the feces, and providing high-quality material with low load and high solid content for subsequent centrifugal treatment. The drive motor of the centrifugal dehydration component drives the centrifuge barrel to rotate at high speed, and the filter cloth further separates the material after pressure filtration. The centrifugal force throws out colloidal water and fine particles, and the final solid phase moisture content is further reduced, meeting the resource utilization requirements of composting, organic fertilizer production and other processes. The two-stage process has a clear division of labor. Pressure filtration solves the problem of large particle clogging and reduces the centrifugal load, while centrifugation makes up for the lack of depth of pressure filtration. The synergy of the two greatly improves the equipment's processing efficiency compared to a single process, and further reduces energy consumption, combining the advantages of high efficiency and energy saving with deep dehydration.

[0017] 2. The detachable connection between the hydraulic telescopic rod one and hydraulic telescopic rod two of the filter press assembly and the centrifuge tank enables independent adjustment of the filter press pressure and centrifuge speed. This allows for flexible adjustment of process parameters for manure with different viscosities and fiber contents, such as pig manure and chicken manure. The equipment is highly versatile. The fastening ring and limiting wheel structure on the outside of the filter cloth ensure stable installation of the filter medium, preventing filter cloth misalignment or damage during centrifugation. The heating block on the inner wall of the dewatering tank preheats the manure at low temperatures, reducing viscosity and improving filter press efficiency. The rinsing nozzle automatically cleans the filter cloth and tank wall after operation, reducing the frequency of manual maintenance. The overall structure is compact, and the modular layout of each component meets the continuous processing needs of large-scale farms while reducing operational difficulty through automated design, significantly improving the equipment's environmental adaptability and maintenance convenience in different farming scenarios. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional diagram of a manure dewatering treatment device for livestock farms.

[0020] Figure 2 This is a cross-sectional schematic diagram of a manure dewatering treatment device for livestock farms.

[0021] Figure 3 This is a top view schematic diagram of the dehydration tank in a manure dehydration treatment device for livestock farms.

[0022] Figure 4 This is a schematic diagram of the connection structure between the filter cloth and the centrifuge tank in a manure dewatering treatment device for livestock farms.

[0023] Figure 5 This is a three-dimensional schematic diagram of a centrifuge tank in a livestock farm manure dewatering treatment device.

[0024] In the attached diagram: 1. Dehydration tank; 2. Centrifugal dehydration assembly; 21. Drive motor; 22. Centrifuge tank; 23. Filter cloth; 24. Fastening ring; 25. Casters; 3. Filter press assembly; 31. Mounting frame; 32. Hydraulic telescopic rod one; 33. Pressure plate; 34. Mounting plate; 35. Hydraulic telescopic rod two; 4. Heating block; 5. Flushing nozzle; 6. Drain pipe; 7. Support leg; 8. Support plate; 9. Limiting wheel. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5 This utility model relates to a manure dewatering treatment device for livestock farms, comprising a dewatering tank 1, a centrifugal dewatering assembly 2 fixedly connected to the bottom of the dewatering tank 1, and a filter press assembly 3 fixedly connected to the top of the surface of the centrifugal dewatering assembly 2. The centrifugal dewatering assembly 2 includes a drive motor 21 fixedly connected to the bottom of the dewatering tank 1, the output shaft of the drive motor 21 passing through the inner cavity of the dewatering tank 1 and inserted into a centrifugal tank 22, a filter cloth 23 covering the surface of the centrifugal tank 22, and a threaded connection on the surface of the centrifugal tank 22 and outside the filter cloth 23. The fastening ring 24 and the filter press assembly 3 include a mounting bracket 31 fixedly connected to the top of the surface of the centrifuge tank 22. A hydraulic telescopic rod 32 is fixedly connected between the three mounting brackets 31. A pressure plate 33 is fixedly connected to the bottom of the hydraulic telescopic rod 32. The bottom of the pressure plate 33 extends into the inner cavity of the centrifuge tank 22. A mounting plate 34 is fixedly connected to the top of the surface of the centrifuge tank 22 through a bearing. A hydraulic telescopic rod 35 is inserted into the bottom of the mounting plate 34. The bottom of the hydraulic telescopic rod 35 is fixedly connected to the surface of the dewatering tank 1 through a fixing plate.

[0028] Specifically: the drive motor 21 is connected to the hexagonal hole at the bottom of the centrifuge tank 22 via the hexagonal prism at the top, forming a power transmission structure to ensure stable connection during high-speed rotation; the outer surface of the centrifuge tank 22 is fitted with a filter cloth 23, which is pressed and fixed by a threaded fastening ring 24 to prevent the filter cloth from shifting during centrifugation; the limiting wheel 9 on the outer side of the filter cloth 23 is fixed to the inner wall of the dewatering tank 1 to further constrain the position of the filter cloth and ensure the solid-liquid separation effect; the three sets of mounting brackets 31 are arranged in a ring to support the hydraulic telescopic rod 32, and its bottom pressure plate 33 can move up and down with the extension and retraction of the hydraulic rod, extending into the inner cavity of the centrifuge tank 22 to apply pressure to the feces; the top of the centrifuge tank 22 is rotatably connected to the mounting plate 34 via a bearing, and the hydraulic telescopic rod 35 at the bottom of the mounting plate 34 is inserted into the fixing plate on the surface of the dewatering tank 1. The extension and retraction of the hydraulic rod controls the lifting and lowering of the mounting plate 34, thereby enabling the centrifuge tank 22 to be disassembled and assembled to adapt to the fecal treatment needs of different capacities and achieve precise control and uniform distribution of pressure during the filtration process.

[0029] Example 2

[0030] Please see Figure 1-5 Based on Embodiment 1, a heating block 4 is fixedly connected to the inner wall of the dehydration tank 1, and a rinsing nozzle 5 is fixedly connected to the inner wall of the dehydration tank 1 between two heating blocks 4. A drain pipe 6 is connected to the bottom of one side of the dehydration tank 1, and a valve is fixedly connected to the inner cavity of the drain pipe 6. A support leg 7 is fixedly connected to the bottom of the dehydration tank 1, and a support plate 8 is fixedly connected between the four support legs 7. The bottom of the drive motor 21 is fixedly connected to the top of the support plate 8. A connecting column is fixedly connected to the bottom axis of the centrifuge tank 22, and a hexagonal hole is opened at the bottom of the connecting column. A hexagonal prism that matches the hexagonal hole is fixedly connected to the top of the output shaft of the drive motor 21. A universal wheel 25 is fixedly connected to the bottom of the centrifuge tank 22, and the bottom of the universal wheel 25 contacts the bottom of the inner cavity of the dehydration tank 1. Limiting wheels 9 are fixedly connected to both the upper and lower ends of the inner cavity of the dehydration tank 1, and the surface of the limiting wheel 9 contacts the surface of the filter cloth 23.

[0031] Specifically: heating block 4 can preheat feces to reduce viscosity and improve filtration efficiency; rinsing nozzle 5 is used to automatically clean the filter cloth and barrel wall after operation, reducing impurity residue and manual maintenance; drain pipe 6 and valve design facilitate centralized collection and discharge of separated liquid, in conjunction with subsequent sewage treatment processes; support legs 7 and support plate 8 enhance equipment stability; drive motor 21 is fixed to support plate 8 to avoid vibration and displacement during high-speed operation; the matching structure of hexagonal hole and hexagonal prism enables quick disassembly and assembly of centrifuge barrel 22 and drive motor 21, facilitating equipment maintenance and component replacement; universal wheels 25 at the bottom of centrifuge barrel 22 contact the bottom of the inner cavity of dewatering barrel 1, assisting centrifuge barrel 22 to move smoothly during filtration and reducing frictional resistance; limit wheel 9 fits against the surface of filter cloth 23 to prevent filter cloth from wrinkling or shifting during centrifugal rotation, ensuring the continuity and reliability of solid-liquid separation.

[0032] The working principle of this utility model is as follows: Feces are fed into the top of the centrifuge tank 22. The hydraulic telescopic rod 32 drives the pressure plate 33 to move downward, applying pressure to the feces. Water seeps into the outer cavity of the centrifuge tank 22 through the filter cloth 23 and is discharged through the drain pipe 6. The material after preliminary dehydration is retained in the filter cloth. After the pressure filtration is completed, the hydraulic telescopic rod 32 retracts the pressure plate 33, and the drive motor 21 starts. The hexagonal prism drives the centrifuge tank 22 to rotate at high speed, using centrifugal force to throw out the residual colloidal water and fine particles in the material, achieving deep dehydration. After the treatment is completed, the drive motor 21 stops, the hydraulic telescopic rod 35 raises the mounting plate 34, and the centrifuge tank 22 can be separated from the dehydration tank 1 through external equipment to remove the dehydrated solid feces. During the operation, the heating block 4 can preheat the feces as needed, and the rinsing nozzle 5 automatically cleans the filter cloth during the material change interval. The whole process realizes the automated cycle of "pressure filtration-centrifugation-cleaning", which efficiently completes the reduction treatment of farm feces.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A manure dewatering treatment device for livestock farms, comprising a dewatering tank (1), characterized in that: The bottom of the dehydration tank (1) is fixedly connected to a centrifugal dehydration component (2), and the top of the surface of the centrifugal dehydration component (2) is fixedly connected to a filter press component (3). The centrifugal dehydration assembly (2) includes a drive motor (21) fixedly connected to the bottom of the dehydration tank (1). The output shaft of the drive motor (21) passes through the inner cavity of the dehydration tank (1) and is inserted into a centrifugal tank (22). A filter cloth (23) is sleeved on the surface of the centrifugal tank (22). A fastening ring (24) is threadedly connected to the surface of the centrifugal tank (22) and outside the filter cloth (23). The filter press assembly (3) includes a mounting bracket (31) fixedly connected to the top of the surface of the centrifuge tank (22). A hydraulic telescopic rod (32) is fixedly connected between the three mounting brackets (31). A pressure plate (33) is fixedly connected to the bottom of the hydraulic telescopic rod (32). The bottom of the pressure plate (33) extends into the inner cavity of the centrifuge tank (22). A mounting plate (34) is fixedly connected to the top of the surface of the centrifuge tank (22) through a bearing. A hydraulic telescopic rod (35) is inserted into the bottom of the mounting plate (34). The bottom of the hydraulic telescopic rod (35) is fixedly connected to the surface of the dewatering tank (1) through a fixing plate.

2. The manure dewatering treatment equipment for livestock farms according to claim 1, characterized in that: A heating block (4) is fixedly connected to the inner wall of the dehydration tank (1), and a rinsing nozzle (5) is fixedly connected to the inner wall of the dehydration tank (1) between the two heating blocks (4).

3. The manure dewatering treatment equipment for livestock farms according to claim 1, characterized in that: The bottom of one side of the dehydration bucket (1) is connected to a drain pipe (6), and a valve is fixedly connected to the inner cavity of the drain pipe (6).

4. The livestock farm manure dewatering treatment equipment according to claim 1, characterized in that: The bottom of the dehydration bucket (1) is fixedly connected to a support leg (7), and a support plate (8) is fixedly connected between the four support legs (7). The bottom of the drive motor (21) is fixedly connected to the top of the support plate (8).

5. The livestock farm manure dewatering treatment equipment according to claim 1, characterized in that: A connecting column is fixedly connected to the bottom axis of the centrifuge tank (22), and a hexagonal hole is opened at the bottom of the connecting column. A hexagonal prism that matches the hexagonal hole is fixedly connected to the top of the output shaft of the drive motor (21).

6. The livestock farm manure dewatering treatment equipment according to claim 1, characterized in that: The bottom of the centrifuge tank (22) is fixedly connected to a caster wheel (25), and the bottom of the caster wheel (25) is in contact with the bottom of the inner cavity of the dehydration tank (1).

7. The livestock farm manure dewatering treatment equipment according to claim 1, characterized in that: The upper and lower ends of the inner cavity of the dehydration bucket (1) are fixedly connected to limit wheels (9), and the surface of the limit wheels (9) is in contact with the surface of the filter cloth (23).

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