Device and method for accelerating decomposition of livestock feces

By designing a device that uses straw powder and cyanamide mixed powder to promote fragmentation and microbial decomposition of livestock manure, the problem of incomplete decomposition of livestock manure is solved, and the effect of rapid decomposition and environmental improvement is achieved.

CN117303690BActive Publication Date: 2025-08-22NORTHEAST NORMAL UNIVERSITY
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202311193019.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-10
Publication Date
2025-08-22
Estimated Expiration
2043-09-10

AI Technical Summary

Technical Problem

In the prior art, livestock manure is not thoroughly decomposed and the decomposition time is long, resulting in environmental pollution and waste of resources. It is difficult for traditional methods to effectively treat harmful substances in the manure, affecting the balance of grassland ecosystems and soil quality.

Method used

Design a device to use straw powder and cyanamide or dicyanamide to mix powder, and evenly apply the powder on livestock manure through a spiral structure and a powder leakage device, and fragment the manure through a manure division runway and a manure leakage net to promote microbial decomposition and reduce the formation of feces spots.

Benefits of technology

Accelerate the decomposition of livestock manure, reduce the number of manure spots, improve the soil environmental quality, promote the growth of microbial colonies, improve decomposition efficiency, and reduce environmental pollution.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117303690B_ABST
    Figure CN117303690B_ABST
Patent Text Reader

Abstract

A device for accelerating the decomposition of livestock manure, comprising a livestock manure decomposition device body, characterized in that a powder leaker is provided on the livestock manure decomposition device body, a spiral structure is provided in the powder leaker, the powder leaker is connected to a storable powder leaking cloth through a spiral, the other end of the storable powder leaking cloth is connected to a manure receiving funnel, a manure inlet is provided on one side of the manure receiving funnel, a manure separation runway is provided at the lower end of the manure receiving funnel, a manure separation runway hole is provided at the upper end of the manure separation runway, a manure separation runway pipe is provided inside the manure separation runway, a manure leakage net is provided at the lower end of the manure separation runway, and fixing belts are respectively provided at the upper and lower ends of the manure separation runway.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the field of ecological environment protection and soil microbial remediation technology, and in particular to a device and method for accelerating the decomposition of livestock manure. Background Art

[0002] At present, with the continuous development of the economy, the scale of animal husbandry is constantly expanding. However, with the increase in the number of livestock, the excretion pollutants brought about by daily livestock production are also increasing. If these excrement are not treated in time or are not effectively treated, they will cause harm to the environment around the breeding production base.

[0003] Energy flow and material cycling are crucial functional processes in terrestrial ecosystems. The decomposition of animal excreta is a crucial pathway for returning the energy and nutrients it contains to grassland ecosystems. Within grassland ecosystems, the decomposition of livestock manure plays a crucial role in maintaining the system's balance.

[0004] In the material cycle of grazing grassland ecosystems, nutrients circulate and migrate between soil, plants, animals, and litter. Animals consume nutrients and return them to the grassland in the form of excrement, a significant input pathway into the grassland ecosystem. Some believe that herders' collection of cattle dung for fuel or sale as other energy sources reduces or even disrupts the material cycle and energy flow between the soil, plants, and animals in grassland ecosystems, leading to nutrient depletion, soil nutrient imbalance, deterioration of soil structure, and ultimately grassland degradation. For grassland ecosystems with nutrient-poor soils or no fertilizer, nutrient content from grazing livestock excrement and plant litter is the primary input pathway. The recycling of limiting nutrients such as nitrogen, phosphorus, and potassium is essential for the sustainable development of grassland livestock production systems. In grassland ecosystems, the biogeochemical pathways of nitrogen primarily occur between the atmosphere, soil, plants, animals, and microorganisms, and can be divided into internal and external cycles. The external cycle refers to the process by which nitrogen enters and exits the ecosystem. The internal cycle refers to the transformation of nitrogen's chemical forms and its transfer between different reservoirs in a system. Underhay and Dickinson found that in grazed grasslands, a large proportion of nutrients ingested by cattle are returned to the environment through excreta. These proportions for key nutrients such as phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sodium (Na) are approximately 65%, 11%, 78%, 80%, and 29%, respectively. During the decomposition of cattle manure, soluble mineral ions are only leached out during prolonged rainfall, with magnesium being extremely difficult to leach out by rainwater. Within two months of summer, manure loses 15% of its organic matter and 18% of its energy value. This decrease in manure organic matter concentration leads to the concentration of Ca, Mg, and nitrogen in the manure. The flux of nitrogen in the internal cycle is much greater than that in the external cycle. The nitrogen transformation process in grassland soils is a crucial component of the internal cycle and is crucial for understanding the mechanisms of grassland ecosystem function and biogeochemical cycles.

[0005] During the decomposition process of cow dung, weight and fiber content fluctuate significantly initially, then change more slowly. Within 1-5 days of decomposition, readily degradable organic nitrogen is rapidly mineralized, and dung beetle activity can be ignored. After 15 days, dung beetle activity accelerates or initiates another ammonification process in the residual dung or dung balls. This is an aerobic process caused by the rapid decrease in dung moisture. As organic nitrogen in the dung fragments is mineralized, it also undergoes nitrification, particularly in dung balls buried by dung beetles in the upper soil layer.

[0006] The accumulation of manure on grasslands can have a significant impact on grassland ecosystems. Research results show that the accumulation of cattle manure on grasslands can cause manure spots to form in grassland ecosystems, increase the moisture, organic matter, total nitrogen, total phosphorus, and total potassium content of the soil beneath the manure piles, and reduce the soil pH, thereby improving the physical and chemical properties of the soil and hindering the growth of surrounding plants. However, livestock refuse to eat the surrounding pasture, resulting in the waste of some grassland resources and a reduction in primary productivity. Manure contains a large amount of undigested organic matter, which can cause multiple pollution and harm to the atmosphere, water bodies, soil, and organisms. In addition, large amounts of livestock manure allow mosquitoes, flies, pathogens, and parasites to spread, leading to the occurrence of zoonotic diseases and serious harm to human and animal health. Animal manure contains a large amount of phosphorus, and phosphorus can promote plant growth within a certain amount. However, once the amount of phosphorus entering the soil exceeds the standard, the soil structure will change. After fermentation, livestock and poultry manure will produce hydrogen sulfide, ammonia, methyl indole, methyl mercaptan and other low-level fatty acids, which will then have an adverse effect on the growth of crops and may even cause great losses to agricultural production.

[0007] After fermentation, livestock manure produces a rather unpleasant odor, which reduces the freshness of the surrounding environment and produces a series of adverse consequences. Secondly, there are many volatile organic compounds in animal manure, some of which are highly harmful toxic gases, which will form a certain degree of air pollution and directly affect the local climate. After fermentation, livestock manure produces a rather unpleasant odor, which reduces the freshness of the surrounding environment and produces a series of adverse consequences. Secondly, there are many volatile organic compounds in animal manure, some of which are highly harmful toxic gases, which will form a certain degree of air pollution and directly affect the local climate.

[0008] In existing grazing ecosystems, many organisms are associated with livestock manure, with arthropods and microorganisms being the primary groups. The primary method for treating livestock manure relies on the activities of various arthropods, such as beetles, dung beetles, and E. coli, to accelerate the fragmentation and decomposition of manure. However, due to the large volume and high viscosity of livestock manure, such as cow and horse manure, traditional decomposition methods suffer from drawbacks such as long decomposition times and incomplete decomposition. Summary of the Invention

[0009] In view of the above-mentioned existing problems, the purpose of the present invention is to provide a device and method for accelerating the decomposition of livestock manure, so that the manure discharged by livestock is reduced from a large volume just discharged to a small volume, and then the mixed powder composed of straw powder, monocyanamide and dicyandiamide is contaminated onto small-volume manure balls, thereby fragmenting the manure. At the same time, the growth of biological colonies such as cellulose, oil, and protein bacteria in livestock manure is promoted, and they are decomposed and absorbed by the soil surface, thereby achieving the goal of reducing grassland manure spots and improving soil environmental quality.

[0010] The technical solutions of the present invention are as follows:

[0011] A device for accelerating the decomposition of livestock manure, comprising a livestock manure decomposition device body, wherein a powder leaker is provided on the livestock manure decomposition device body, a spiral structure is provided in the powder leaker, the powder leaker is connected to a storable powder leaking cloth through a spiral, the other end of the storable powder leaking cloth is connected to a manure receiving funnel, a manure inlet is provided on one side of the manure receiving funnel, a manure separation runway is provided at the lower end of the manure receiving funnel, a manure separation runway hole is provided at the upper end of the manure separation runway, a manure separation runway pipe is provided inside the manure separation runway, a manure leakage net is provided at the lower end of the manure separation runway, fixing belts are respectively provided at the upper and lower ends of the manure separation runway, Velcro is respectively provided at both ends of the fixing belt, and the fixing belt is configured as an elastic waterproof telescopic belt with a length of 2.5m.

[0012] Preferably, the powder leaker is configured as a hollow cylindrical structure, which contains a mixed powder of straw powder and lime nitrogen decomposition product monocyanamide or dicyandiamide. The powder leaker is configured as a PVC material with a diameter of 6 cm and a height of 15 cm. A small hole is provided at its end. A spiral structure is provided inside the powder leaker for connecting to the storable powder leaking cloth.

[0013] Preferably, the powder-storing cloth is a powder-leaking cloth with an anti-oblique leakage barrier sheet provided inside.

[0014] Preferably, the manure receiving funnel is made of PPR material.

[0015] Preferably, the manure separation runway pipe is provided with twelve asymmetric PPR plastic pipes of different lengths, with a diameter of 3 cm. The front end of the manure separation runway pipe is connected to the manure receiving funnel, and the rear end is connected to the manure leakage net. The manure separation net is made of nylon.

[0016] Preferably, the fixing belt is set to 2.5m, and the connection of the fixing device is provided with Velcro. A method for accelerating the decomposition of livestock manure, wherein:

[0017] First, assemble the device based on the decomposition body of livestock manure;

[0018] Then, the Velcro fastener is first fixed, and then straw powder and monocyanamide or a mixed powder of straw powder and dicyanamide is added to the powder leaking device (1), and after the addition, it is fixed to the manure receiving funnel (5) through a thread;

[0019] Secondly, when the livestock are active, the powder is leaked onto the storable powder leaking cloth (2). Through further livestock activities, the powder is leaked onto the manure receiving hopper (5). The manure receiving hopper (5) moves to the manure separation runway (4). After the livestock manure passes through the manure inlet (3), the manure is evenly coated with the powder, and bacterial colonies are also attached to the surface of the livestock manure.

[0020] Finally, the livestock manure is divided into multiple parts through the manure separation track (4), and is divided into smaller manure blocks through the manure screening net (6) at the end.

[0021] The present invention provides a device and method for accelerating the decomposition of livestock manure. The structural design of the powder leaker makes the device simple in structure, easy to process, cost-effective, easy to install, and environmentally friendly and pollution-free. The design of the runway manure separation pipe greatly reduces the volume of livestock manure. The design of adding powder reduces the viscosity between manure. At the same time, it can also accelerate the decomposition of livestock manure and further reduce the number of manure spots, thereby realizing a new ecological and recyclable grazing model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic diagram of the overall structure of a device and method for accelerating the decomposition of livestock manure.

[0023] Figure 2 The present invention is a side structural schematic diagram of a device and method for accelerating the decomposition of livestock manure.

[0024] Figure 3 The present invention is a schematic cross-sectional structure diagram of a device and method for accelerating the decomposition of livestock manure.

[0025] Figure 4 The present invention is a structural schematic diagram of a manure separation net in a device and method for accelerating the decomposition of livestock manure.

[0026] 1. Powder leaker, 2. Storable powder leaking cloth, 3. Manure inlet, 4. Manure runway, 5. Manure receiving funnel, 6. Manure leaking net, 7. Fixing belt, 8. Manure runway sleeve, 9. Manure runway pipe DETAILED DESCRIPTION

[0027] A device and method for accelerating the decomposition of livestock manure. To make the purpose, technical solution, and effects of the present invention more clear and explicit, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to illustrate the present invention and are not intended to limit the present invention.

[0028] Figure 1 This is a schematic diagram of the overall structure of a device and method for accelerating the decomposition of livestock manure. Figure 2 This is a side structural diagram of a device and method for accelerating the decomposition of livestock manure. Figure 3 The figure is a cross-sectional structural diagram of a device and method for accelerating the decomposition of livestock manure. Figure 4 The structure diagram of the manure separation net in a device and method for accelerating the decomposition of livestock manure is shown in FIG. Figure 1-4 As shown, the present invention is provided with a livestock manure decomposition device body, and a powder leaker 1 is provided on the livestock manure decomposition device body, and a spiral structure is provided in the powder leaker 1, and the powder leaker 1 is connected to a storable powder leaking cloth 2 through a spiral, and the other end of the storable powder leaking cloth 2 is connected to a manure receiving funnel 5, and a manure inlet 3 is provided on one side of the manure receiving funnel 5, and a manure separation runway 4 is provided at the lower end of the manure receiving funnel 5, and a manure separation runway hole 8 is provided at the upper end of the manure separation runway 4, and a manure separation runway pipe 9 is provided inside the manure separation runway 4, and a manure leakage net 6 is provided at the lower end of the manure separation runway, and fixing belts 7 are respectively provided at the upper and lower ends of the classification runway, and Velcro is provided at both ends of the fixing belt 7 for fixing, and the fixing belt 7 is configured as an elastic waterproof telescopic belt with a length of 2.5m.

[0029] The powder leaker 1 is configured as a hollow cylindrical structure, which contains straw powder and decomposed bacterial colony powder, such as a mixed powder of monocyanamide and dicyandiamide, the decomposition products of lime nitrogen. The powder leaker 1 is configured as a PVC material, with a diameter of 6 cm and a height of 15 cm. A small hole is provided at its end for powder outflow. A spiral structure is provided inside the powder leaker 1 for connecting to the storable powder leaking cloth 2. The threaded connection has the characteristics of being tight, easy to install and easy to disassemble.

[0030] The storable powder-leaking cloth 2 is configured as a powder-leaking cloth with an anti-leakage barrier sheet provided inside. When the powder in the powder leaker 1 falls, the movement of the livestock causes the powder to fall, and after falling, the powder can be hung on the upper half of the manure receiving funnel 5.

[0031] The manure receiving funnel 5 is configured to be made of PPR material, which is waterproof. The structure of the manure receiving funnel 5 can preliminarily crush livestock manure. The PPR material has the advantages of strong plasticity, light weight, and good corrosion resistance. It is also easy to wear and can be used repeatedly. At the same time, when the manure is in a solidified form, it can be transparently observed whether it is blocked.

[0032] The manure separation runway pipe 9 is provided with twelve asymmetric PPR plastic pipes of different lengths, with a diameter of 3 cm, such as a PPR hose. The front end of the manure separation runway pipe 9 is connected to the manure receiving funnel 5, and the rear end is connected to the manure leakage net 6. The manure separation net 6 is set to nylon material, similar to the design of a badminton racket surface, with high mechanical strength, good toughness, high softening point, heat resistance, smooth surface, low friction coefficient, wear resistance, and corrosion resistance. When the livestock manure passing through the manure separation runway 4 contacts the manure leakage net 6, the livestock manure can be further divided into smaller parts, thereby reducing the formation of manure spots exponentially, completely fragmenting the livestock manure, and accelerating the decomposition rate of livestock manure.

[0033] The fixing belt 7 is set to 2.5m, and the connection of the fixing device is provided with Velcro, which can prevent livestock from falling in high temperature conditions outdoors because Velcro is heat-resistant. Velcro is also waterproof, easy to put on and take off, and has a soft texture, which does not make livestock feel restrained and facilitates their normal activities.

[0034] When in use, the operator first needs to assemble the device. After assembly, fix the Velcro strap first, and then add straw powder and monocyanamide or a mixed powder of straw powder and dicyandiamide into the powder leaker 1. After adding, it is fixed to the manure receiving funnel 5 through a thread. When the livestock moves, the powder leaks onto the storable powder leaking cloth 2. Through further livestock activities, the powder leaks onto the manure receiving funnel 5. The manure receiving funnel 5 moves to the manure separation runway 4. After the livestock manure passes through the manure inlet 3, the manure will be evenly stained with powder, and at the same time, bacterial colonies will also adhere to the surface of the livestock manure. Subsequently, through the manure separation runway 4, the livestock manure will be changed from one portion to multiple portions, and at the end it will pass through the manure leakage net 6 to be divided into smaller manure blocks.

[0035] The invention has the following advantages:

[0036] 1. By combining the storable funnel cloth 2 with the straw powder and the lime nitrogen decomposition product monocyanamide or dicyandiamide mixed powder, the initially subdivided feces is solidified and loses its stickiness. At the same time, the operation is convenient, simple and effective. The straw powder and the lime nitrogen decomposition product monocyanamide or dicyandiamide mixed powder can accelerate its drying and fragmentation, and accelerate the growth of cellulose, oil and other decomposition bacteria, thereby attracting dung beetles to decompose.

[0037] 2. Through the design of the manure receiving funnel 5, the livestock manure can be initially refined when it falls. The manure separation runway 4 is designed to be a PPR pipe of different lengths similar to a runway shape to further fragment the manure. The manure separation runway pipes 9 of different lengths prevent the livestock manure stained with straw powder and the mixed powder of monocyanamide or dicyandiamide, a decomposition product of lime nitrogen, from reaching the powder leakage net 6 at the same time, and no large manure spots are formed.

[0038] 3. The manure-leaking net 6 is designed as a badminton racket-like structure and is composed of nylon ropes, which can completely fragment the feces, exponentially accelerate human intervention, and improve the decomposition rate. It has strong mechanical properties and is waterproof and wear-resistant.

[0039] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for accelerating the decomposition of livestock manure, comprising a livestock manure decomposition device body, characterized in that: The livestock excrement decomposition device body is provided with a powder leaker (1), a spiral structure is provided in the powder leaker (1), the powder leaker (1) is connected to a storable powder leaking cloth (2) through the spiral, the other end of the storable powder leaking cloth (2) is connected to a manure receiving funnel (5), a manure inlet (3) is provided on one side of the manure receiving funnel (5), a manure separation runway (4) is provided at the lower end of the manure receiving funnel (5), a manure separation runway hole (8) is provided at the upper end of the manure separation runway (4), a manure separation runway pipe (9) is provided inside the manure separation runway (4), a manure leakage net (6) is provided at the lower end of the manure separation runway (4), and the manure separation runway (4) is provided with a manure separation runway hole (8). The upper and lower ends of the road are respectively provided with fixing belts (7), and the two ends of the fixing belts (7) are respectively provided with Velcro. The fixing belts (7) are set as elastic waterproof telescopic belts with a length of 2.5m. The manure separation runway pipe (9) is provided with twelve asymmetric PPR plastic pipes with different lengths and a diameter of 3cm. The front end of the manure separation runway pipe (9) is connected to the manure receiving funnel (5), and the rear end is connected to the manure leakage net (6). The fixing belts (7) can be worn on livestock. The powder leaker (1) is set as a hollow cylindrical structure, and a mixed powder of straw powder and monocyanamide or dicyandiamide, a decomposition product of lime nitrogen, is contained inside.

2. The device for accelerating the decomposition of livestock manure according to claim 1, characterized in that: The powder leaker (1) is made of PVC material, has a diameter of 6 cm, and a height of 15 cm, and is provided with a small hole at its end. A spiral structure is provided inside the powder leaker (1) for connection with the storable powder leaking cloth (2).

3. The device for accelerating the decomposition of livestock manure according to claim 2, characterized in that: The powder-storable leakage cloth (2) is provided as a powder-leaking cloth, and an anti-oblique leakage barrier sheet is provided inside.

4. The device for accelerating the decomposition of livestock manure according to claim 3, characterized in that: The manure receiving funnel (5) is made of PPR material.

5. The device for accelerating the decomposition of livestock manure according to claim 4, characterized in that: The excrement leaking net (6) is made of nylon.

Citation Information

Patent Citations

  • Livestock excrement collecting device

    CN203058063U

  • Odorless water-saving public toilet system

    CN216616114U