Cow dung dehydration device for production of regenerated padding

By combining dehydration and air-drying mechanisms, the cow manure dehydration device solves the problems of fiber damage and odor pollution caused by existing equipment, achieving efficient dehydration and deodorization, and providing high-quality cow manure raw materials suitable for recycled bedding.

CN223879604UActive Publication Date: 2026-02-06INNER MONGOLIA MENGMU LVBANG ENERGY TECH CO LTD
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Patent Information

Application Number
CN202520397678.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-09
Publication Date
2026-02-06
Estimated Expiration
2035-03-09

AI Technical Summary

Technical Problem

Existing cow manure dewatering equipment damages fibers during the screw extrusion process, making it unusable as cow bedding material for recycling. It also causes odor pollution and makes equipment maintenance difficult.

Method used

The cow manure dehydration device combines a dehydration mechanism and an air-drying mechanism. It initially dehydrates the manure by squeezing it with an inclined auger, accelerates the air-drying process by turning it over with a stirring rod and drawing air with a fan, and filters the gas with a detachable filter plate to achieve efficient dehydration and deodorization.

Benefits of technology

It achieves efficient dehydration of cow manure, avoids difficult equipment maintenance, improves dehydration efficiency and drying effect, reduces harmful emissions, and provides high-quality raw materials suitable for recycled bedding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of cow dung dewatering, and particularly relates to a cow dung dewatering device for regenerated padding production, which comprises a bottom plate, a dewatering pipe and an air-drying box, the dewatering pipe and the air-drying box are arranged at the top of the bottom plate, an air-drying mechanism is arranged in the air-drying box, and a dewatering mechanism is arranged in the dewatering pipe. According to the cow dung dewatering device for regenerated padding production, through the arranged air drying mechanism, after preliminarily dewatered cow dung falls into an air drying box, a second motor drives two engaged gears in a gear box to rotate, then a first stirring rod and a second stirring rod start to rotate, and the cow dung in the air drying box is overturned and stirred; the draught fan extracts gas from the interior of the air drying box, when the gas passes through the ventilation box, the gas is filtered through the filter plate, the filter plate can filter out particulate matter and some harmful substances in the gas, the fan is prevented from being blocked, the harmful substances and smells of the exhausted gas are reduced, and the draught fan accelerates flowing of the gas in the air drying box; and the air-drying efficiency of cow dung in the air-drying box is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cattle dung dewatering, in particular to a cattle dung dewatering device for recycled bedding production. BACKGROUND

[0002] With the domestic consumption of dairy products greatly increasing, the number of dairy cows is also increasing. However, with the development of modern cattle farming, the problem of environmental pollution by cow dung is becoming increasingly serious. Cow dung can be used to produce biogas, make high-quality organic fertilizer, serve as bedding for cattle, and even be used to make cow dung fuel. Among them, the use of cow dung for aerobic fermentation to produce organic fertilizer to improve the soil and serve as bedding for cattle is a very promising green resource recycling method.

[0003] The existing dewatering of cow dung mainly uses spiral extrusion pressing equipment. Although this type of equipment can achieve a low water content, the internal coarse fibers such as grass in the cow dung are crushed and destroyed during the spiral extrusion pressing process, which is not conducive to subsequent aerobic fermentation and cannot be recycled as bedding for cattle, resulting in a large waste of resources. The spiral extrusion pressing equipment also has the problems of small production capacity, difficult maintenance, and high failure rate.

[0004] In the patent document with publication number CN217499040U3, a belt press filter for dewatering cow dung is disclosed. It can deeply dewater the cow dung while maintaining the integrity of the coarse fibers in the cow dung and further reduce the water content by 3 to 5 percentage points in the original process, increase the service life of the filter belt by 1.5 times, and can also be used for dewatering sludge and other similar materials with high fiber content.

[0005] However, the belt press filter for dewatering cow dung directly exposes the working environment to a large amount of odor and pollution during operation, affecting the working environment, and only through extrusion cannot make the cow dung meet the standard for later use, so a cattle dung dewatering device for recycled bedding production is needed. UTILITY MODEL CONTENT

[0006] The utility model aims to provide a cattle dung dewatering device for recycled bedding production to solve the problem of dewatering cow dung for recycled bedding production as mentioned in the background.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cattle dung dewatering device for recycled bedding production, comprising a bottom plate, a dewatering pipe and a drying box arranged on the top of the bottom plate, a drying mechanism is arranged inside the drying box, and a dewatering mechanism is arranged inside the dewatering pipe.

[0008] The air-drying mechanism comprises a stirring rod one, a stirring rod two, a gear box, a motor two, a ventilation box, a mounting box, a filter plate, a sealing cover, a connecting pipe and a fan, the stirring rod one and the stirring rod two are rotationally connected to the inner wall of the air-drying box, the gear box is arranged on one side of the air-drying box, the motor two is arranged on one side of the gear box, the ventilation box is arranged on the front of the air-drying box, the mounting box is arranged on the inner wall of the ventilation box, the filter plate is arranged on the inner wall of the mounting box, the sealing cover is slidingly connected to one side of the ventilation box, the connecting pipe is arranged at the bottom of the ventilation box, and the fan is arranged at the bottom of the connecting pipe.

[0009] Preferably, the gear box is internally provided with two intermeshing gears, the stirring rod one and the stirring rod two are connected with the two gears respectively, and the output end of the motor two is connected with the gear on one side of the gear box.

[0010] Preferably, the back of the ventilation box is provided with a ventilation pipe connected with the air-drying box, and the air in the air-drying box is extracted through the ventilation pipe by the fan.

[0011] Preferably, a T-shaped groove matched with the sealing cover is formed in one side of the ventilation box, the sealing cover can seal the ventilation box on one hand and can limit the mounting box on the other hand.

[0012] Preferably, the dehydration mechanism comprises a motor one, an inlet, an outlet, an inclined auger, a sieve plate and a flow guide plate, the motor one is arranged on one side of the dehydration pipe, the inclined auger is rotationally connected to the inner wall of the dehydration pipe, the sieve plate is arranged on the left side of the bottom of the dehydration pipe, the outlet is arranged on the right side of the bottom of the dehydration pipe, the inlet is arranged on the left side of the top of the dehydration pipe, and the flow guide plate is arranged on the left side of the bottom of the dehydration pipe.

[0013] Preferably, the sieve plate is arranged in an arc shape matched with the inner wall of the dehydration pipe, the sieve plate mainly supports the cow dung and screens out the moisture, and can also discharge the moisture of the cow dung after extrusion.

[0014] Preferably, the top of the bottom plate is provided with a wastewater collection box, the wastewater collection box is arranged to collect the sewage flowing out of the flow guide plate, the top of the bottom plate is fixedly connected with a support frame, and the support frame is arranged to support the dehydration pipe.

[0015] Compared with the prior art, the air-drying mechanism has the advantages that:

[0016] 1. The cattle manure dewatering device for regenerative litter production, through the air drying mechanism, when the primary dewatered cattle manure falls to the inside of the air drying box, the two gears meshing with each other in the gear box is rotated under the drive of the motor two, then the stirring rod one and the stirring rod two rotate, the cattle manure in the air drying box is turned over and stirred, and the gas is extracted from the inside of the air drying box through the fan, when the gas passes through the ventilation box, the filter plate is used for filtering, the filter plate filters out the particulate matters and some harmful substances in the gas, on the one hand, the fan is prevented from being blocked, and on the other hand, the harmful substances and the odor of the discharged gas are reduced, the fan can accelerate the gas flow in the air drying box, and the air drying efficiency of the cattle manure in the air drying box is increased.

[0017] 2. The cattle manure dewatering device for regenerative litter production, through the dewatering mechanism, the cattle manure material is put into the inside of the dewatering pipe through the feeding port, the inclined auger rotates under the drive of the motor one, the cattle manure material on the left side of the dewatering pipe is spirally lifted, and the cattle manure is extruded, the liquid after being extruded slides along the inner wall of the dewatering pipe, is discharged to the wastewater collecting box through the guide plate through the sieve plate, and the cattle manure after being extruded and dewatered is discharged from the discharging port at the right end of the dewatering pipe and falls to the inside of the air drying box, the primary dewatering of the cattle manure is completed, the dewatering effect is good, the working efficiency is high, the concentrated treatment of the cattle manure is facilitated, and the raw material for regenerative litter production is provided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic view of the utility model;

[0019] Figure 2 It is the dewatering mechanism structure schematic view of the utility model;

[0020] Figure 3 It is the inside structure schematic view of the air drying box of the utility model;

[0021] Figure 4 It is the air drying mechanism structure schematic view of the utility model.

[0022] In the drawing: 1, bottom plate; 2, dewatering pipe; 3, air drying box; 4, wastewater collecting box; 5, support frame; 201, motor one; 202, feeding port; 203, discharging port; 204, inclined auger; 205, sieve plate; 206, guide plate; 301, stirring rod one; 302, stirring rod two; 303, gear box; 304, motor two; 305, ventilation box; 306, mounting box; 307, filter plate; 308, sealing cover; 309, connecting pipe; 310, fan. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figures 1-4 The present application provides a technical scheme: Embodiment

[0025] A kind of cow dung dewatering device for regenerative litter production, including bottom plate 1 and the dehydration pipe 2 and air drying box 3 of setting at the top of bottom plate 1, air drying box 3 inside is provided with air drying mechanism;

[0026] The air-drying mechanism comprises a stirring rod 301, a stirring rod 302, a gear box 303, a motor 304, a ventilation box 305, a mounting box 306, a filter plate 307, a sealing cover 308, a connecting pipe 309 and a fan 310. The stirring rod 301 and the stirring rod 302 are rotationally connected to the inner wall of the air-drying box 3. The gear box 303 is arranged on one side of the air-drying box 3. Two gears are arranged in the gear box 303. The stirring rod 301 and the stirring rod 302 are connected to the two gears respectively. The output end of the motor 304 is connected to the gear on one side of the gear box 303. After the motor 304 is started, the two gears are rotated, and then the stirring rod 301 and the stirring rod 302 are rotated to overturn the cow dung in the air-drying box 3. The motor 304 is arranged on one side of the gear box 303. The ventilation box 305 is arranged in front of the air-drying box 3. A ventilation pipe is arranged on the back of the ventilation box 305 and connected to the air-drying box 3. The air in the air-drying box 3 is extracted by the fan 310 through the ventilation pipe. A T-shaped groove is arranged on one side of the ventilation box 305 and matched with the sealing cover 308. The sealing cover 308 can seal the ventilation box 305 and limit the mounting box 306. The mounting box 306 is arranged on the inner wall of the ventilation box 305 and is detachable. The sealing cover 308 is pulled out from one side of the ventilation box 305 to release the limitation of the mounting box 306. The mounting box 306 can be pulled out, and the filter plate 307 can be replaced. The filter plate 307 is arranged on the inner wall of the mounting box 306. The sealing cover 308 is slidably connected to one side of the ventilation box 305. The connecting pipe 309 is arranged at the bottom of the ventilation box 305. The fan 310 is arranged at the bottom of the connecting pipe 309. After the cow dung is preliminarily dehydrated and falls into the air-drying box 3, the motor 304 drives the two gears in the gear box 303 to rotate, and then the stirring rod 301 and the stirring rod 302 start to rotate and overturn and stir the cow dung in the air-drying box 3. The fan 310 extracts the gas in the air-drying box 3 to accelerate the flow of the gas in the air-drying box 3 and increase the air-drying efficiency of the cow dung in the air-drying box 3. When the gas passes through the ventilation box 305, it is filtered by the filter plate 307. The filter plate 307 filters out the particulate matters and some harmful substances in the gas, which can avoid the blockage of the fan of the fan 310 and reduce the harmful substances and odor of the discharged gas. Embodiment

[0027] On the basis of embodiment one, the dehydration pipe 2 is internally provided with a dehydration mechanism, the dehydration mechanism comprising a motor one 201, an inlet 202, an outlet 203, an inclined auger 204, a sieve plate 205 and a flow guide plate 206, the motor one 201 being arranged on one side of the dehydration pipe 2, the inclined auger 204 being rotatably connected to the inner wall of the dehydration pipe 2, the sieve plate 205 being arranged on the left side of the bottom of the dehydration pipe 2, the sieve plate 205 being arranged in an arc shape matched with the inner wall of the dehydration pipe 2, the sieve plate 205 mainly supporting the cow dung and screening out the moisture, and also discharging the moisture of the cow dung after extrusion. The outlet 203 is arranged on the right side of the bottom of the dehydration pipe 2, the inlet 202 is arranged on the left side of the top of the dehydration pipe 2, and the flow guide plate 206 is arranged on the left side of the bottom of the dehydration pipe 2. The cow dung material is put into the dehydration pipe 2 through the inlet 202, the motor one 201 drives the inclined auger 204 to rotate, the cow dung material on the left side of the dehydration pipe 2 spirally rises and extrudes the cow dung, the liquid after extrusion slides along the inner wall of the dehydration pipe 2, is discharged to the waste water collecting box 4 through the sieve plate 205 and the flow guide plate 206, and the cow dung after dehydration by extrusion is discharged from the outlet 203 at the right end of the dehydration pipe 2 and falls into the air drying box 3.

[0028] The bottom plate 1 is provided with a waste water collecting box 4 arranged to collect the sewage flowing from the flow guide plate 206, and is fixedly connected with a support frame 5 arranged to support the dehydration pipe 2.

[0029] Working principle:

[0030] Firstly, the cow dung material is put into the dehydration pipe 2 through the inlet 202, the motor one 201 is started, the inclined auger 204 rotates, the cow dung material on the left side of the dehydration pipe 2 spirally rises and extrudes the cow dung, the liquid after extrusion slides along the inner wall of the dehydration pipe 2, is discharged to the waste water collecting box 4 through the sieve plate 205 and the flow guide plate 206, and the cow dung after dehydration by extrusion is discharged from the outlet 203 at the right end of the dehydration pipe 2 and falls into the air drying box 3, thereby completing the preliminary dehydration of the cow dung, the dehydration effect is good, the working efficiency is high, and it is conducive to the centralized treatment of the cow dung.

[0031] Further, when the cow dung after preliminary dehydration falls into the air drying box 3, the motor two 304 is started, the motor two 304 drives the two gears in the gear box 303 to rotate, then the stirring rod one 301 and the stirring rod two 302 start to rotate and turn and stir the cow dung in the air drying box 3, and the fan 310 draws the gas in the air drying box 3 to accelerate the flow of the gas in the air drying box 3 and increase the air drying efficiency of the cow dung in the air drying box 3.

[0032] Further, when the gas passes through the ventilation box 305, it will pass through the filter plate 307 for filtering, and the filter plate 307 can filter out the particulate matters and some harmful substances in the gas, which can avoid the blockage of the fan of the fan 310, and can reduce the harmful substances and odor of the discharged gas.

[0033] Further, the installation box 306 is detachable, and the sealing cover 308 is directly pulled out from one side of the ventilation box 305 to release the restriction on the installation box 306, so that the installation box 306 can be pulled out and the filter plate 307 can be replaced.

[0034] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A cattle dung dewatering device for producing regenerated litter, comprising a base plate (1) and a dewatering pipe (2) and an air-drying box (3) arranged on the top of the base plate (1), characterized in that: The inside of the air-drying box (3) is provided with an air-drying mechanism, and the inside of the dehydration pipe (2) is provided with a dehydration mechanism. The air-drying mechanism comprises a stirring rod one (301), a stirring rod two (302), a gear box (303), a motor two (304), a ventilation box (305), a mounting box (306), a filter plate (307), a sealing cover (308), a connecting pipe (309) and a fan (310), the stirring rod one (301) and the stirring rod two (302) are rotationally connected to the inner wall of the air-drying box (3), the gear box (303) is arranged on one side of the air-drying box (3), the motor two (304) is arranged on one side of the gear box (303), the ventilation box (305) is arranged on the front of the air-drying box (3), the mounting box (306) is arranged on the inner wall of the ventilation box (305), the filter plate (307) is arranged on the inner wall of the mounting box (306), the sealing cover (308) is slidingly connected to one side of the ventilation box (305), the connecting pipe (309) is arranged at the bottom of the ventilation box (305), and the fan (310) is arranged at the bottom of the connecting pipe (309).

2. A cattle dung dehydrating unit for producing a renewable litter as claimed in claim 1, wherein: The inside of the gear box (303) is provided with two gears meshing with each other, the stirring rod one (301) and the stirring rod two (302) are connected with the two gears respectively, and the output end of the motor two (304) is connected with the gear on one side of the gear box (303).

3. A cattle dung dehydrating unit for producing a renewable litter as claimed in claim 1, wherein: The back of the ventilation box (305) is provided with a ventilation pipe connected with the air-drying box (3).

4. A cattle dung dehydrating unit for producing a renewable litter as claimed in claim 1, wherein: A T-shaped groove matched with the sealing cover (308) is formed in one side of the ventilation box (305).

5. A cattle dung dehydrating unit for producing a renewable litter as claimed in claim 1, wherein: The dehydration mechanism comprises a motor one (201), an inlet (202), an outlet (203), an inclined auger (204), a sieve plate (205) and a flow guide plate (206), the motor one (201) is arranged on one side of the dehydration pipe (2), the inclined auger (204) is rotationally connected to the inner wall of the dehydration pipe (2), the sieve plate (205) is arranged on the left side of the bottom of the dehydration pipe (2), the outlet (203) is arranged on the right side of the bottom of the dehydration pipe (2), the inlet (202) is arranged on the left side of the top of the dehydration pipe (2), and the flow guide plate (206) is arranged on the left side of the bottom of the dehydration pipe (2).

6. A cattle dung dehydrating unit for producing a renewable litter according to claim 5, characterized in that: The sieve plate (205) is arranged in an arc shape matched with the inner wall of the dehydration pipe (2).

7. A cattle dung dehydrating unit for producing a renewable litter as claimed in claim 1, wherein: The top of the bottom plate (1) is provided with a wastewater collection box (4), and the top of the bottom plate (1) is fixedly connected with a support frame (5).

Citation Information

Patent Citations

  • Belt type press filter for dehydrating cow dung

    CN217499040U