A pig farm manure collection and treatment system and method

Abstract

The application discloses a pig farm excrement collection and treatment system and method. The system comprises an excrement collector connected with a manure discharge pipe, the excrement collector comprises a non-deformable bucket part and a radially deformable expansion type bucket part connected with the lower end of the non-deformable bucket part, the expansion type bucket part is composed of a plurality of linear strips arranged closely, and the lower ends of all the linear strips in a free state are close to each other. The method comprises the following steps: closing a valve at the end of the manure discharge pipe at a preset time point, pouring water into the manure discharge pipe, and then opening the valve at the end of the manure discharge pipe to discharge the excrement in the manure discharge pipe. The scheme can realize rapid collection and rapid cleaning of the pig farm excrement without water soaking or urine soaking, can prevent the excrement of pigs from flowing back into the excrement collector, can reduce the air pollution degree in the pig house, and more importantly, can effectively prevent the excrement of pigs from accumulating in the excrement collector.

Description

Technical Field

[0001] This invention belongs to the technical field of pig farm manure treatment facilities, specifically relating to a pig farm manure collection and treatment system and method. Background Technology

[0002] Currently, there is a considerable amount of research on using funnel-structured containers to collect and treat pig farm manure. For example, the funnel-type manure discharge system for pig houses, which has already begun to be applied, mainly includes a funnel set under the manure slat plate, and the funnel is connected to the manure discharge pipe through a pipe section.

[0003] The existing literature CN216701250U discloses an automatic manure removal system with water frothing. A funnel-shaped collection device is installed below a grating plate in the breeding area. The upper open end is fixed to the bottom of the grating plate, and the lower constricted end is connected to a horizontal pipe. Each layer of horizontal pipes on the same vertical plane is connected to a vertical pipe, which is located in the middle or to one side of the horizontal pipe's vertical section. A collection pool is located in the bottom breeding area. This system uses a siphon structure and a valve structure to automatically remove manure at timed or quantitative intervals. The collection device and pipes form a collection container. Urine is used to soak the manure, creating water frothing manure, which improves fluidity, allows for rapid manure removal, and minimizes residue. However, in actual use, the manure must be soaked continuously for a long time (otherwise, the inclined and horizontal pipes will be completely blocked within one or two days). This not only increases the degree of air pollution and odor severity in the pigsty, but also requires water replenishment for some funnel-type collection devices (because not all pig urine will fall into each funnel-type collection device on its own; funnel-type collection devices without urine soaking or insufficient soaking are equivalent to dry manure collection containers in this case). More importantly, it is difficult to clean once the inclined pipes and the short pipes at the bottom of the funnel-type collection device become blocked. Summary of the Invention

[0004] In view of the technical problems mentioned in the background art, the purpose of this invention is to provide a system and method for collecting and treating pig farm manure.

[0005] The present invention adopts the following technical solution.

[0006] A pig farm manure collection and treatment system includes a manure collector positioned below a slatted floor. The manure collector is funnel-shaped and connected to a discharge pipe. The manure collector comprises a non-deformable hopper and a radially deformable expandable hopper. The expandable hopper is connected to the lower end of the non-deformable hopper and consists of several closely arranged linear strips. In a free state, the lower ends of all the linear strips are close together or near each other. The "free state" described in this invention refers to the state of the linear strips when they are not under stress.

[0007] In order to facilitate the collection and discharge of feces and sewage, the linear strips are flat strips or cylindrical strips. The maximum width of the flat strips is no more than 10 mm and the thickness is no more than 2 mm, and the maximum diameter of the cylindrical strips is no more than 3 mm.

[0008] As a more preferred embodiment, the linear strip is a polytetrafluoroethylene strip with a length of not less than 15cm.

[0009] As a preferred embodiment, the non-deformable bucket and the expandable bucket adopt an integral molding structure.

[0010] As a preferred embodiment, the angle between the linear strip and the horizontal plane is 27~50°, and the angle between the inner wall of the non-deformed bucket and the horizontal plane is 27~80°.

[0011] In order to collect and process manure more smoothly, a cylinder is set around the expansion hopper. The upper end of the cylinder is sealed to the non-deformable hopper, and the lower end of the cylinder is sealed to the manure discharge pipe. The inner cavity of the cylinder can accommodate the movement of linear strips.

[0012] In order to more effectively prevent sewage blockage, the cylinder has a trumpet-shaped structure that is narrower at the top and wider at the bottom, and the inner wall of the cylinder is arc-shaped.

[0013] In order to more effectively prevent fecal clogging, the lower end of the linear strip is higher than the top of the sewage pipe.

[0014] A method using the aforementioned pig farm manure collection and treatment system includes the following steps:

[0015] S01, close the valve at the end of the manure pipe at a set time every day, and open the valve at the end of the manure pipe at a set time every day to use urine to promote the downward flow and discharge of the pigs in the manure pipe;

[0016] S02, at a preset time point, close the valve at the end of the sewage pipe;

[0017] S03, open the valve at the beginning of the sewage pipe, pour water into the sewage pipe until the expansion hopper is completely submerged below the liquid surface, then close the valve at the beginning of the sewage pipe and maintain this state for a set time.

[0018] S04, open the valve at the end of the sewage pipe to discharge the sewage inside the sewage pipe.

[0019] As a preferred option, the sewage pipe is a semi-circular pipe or a round pipe, and more preferably a semi-circular pipe.

[0020] Beneficial effects: The solution of this invention can not only achieve rapid collection and cleaning of pig farm manure without water or urine soaking, but also prevent pig manure from flowing back into the manure collector, reduce the degree of air pollution in the pigsty, and more importantly, achieve self-cleaning of the manure collector, effectively preventing pig manure from accumulating in the manure collector and effectively preventing manure from clogging the manure collector and discharge pipe. Attached Figure Description

[0021] Figure 1 This is a partial main cross-sectional view of the pig farm manure collection and treatment system in Example 1;

[0022] Figure 2 This is a partial top-down schematic diagram of the pig farm manure collection and treatment system in Example 1;

[0023] Figure 3 This is a partial lateral schematic diagram of the pig farm manure collection and treatment system in Example 1. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0025] Combination Figures 1 to 3 As shown, a pig farm manure collection and treatment system includes a manure collector positioned below a slatted floor. The manure collector is funnel-shaped and connected to a discharge pipe 2. The discharge pipe 2 is installed with a reasonable slope to facilitate smoother flow of manure (the angle between the axis of the discharge pipe 2 and the horizontal plane is controlled at 12°). The manure collector includes a non-deformable hopper 10 and a radially deformable expandable hopper 11. The expandable hopper 11 is connected to the lower end of the non-deformable hopper 10 and consists of several closely arranged linear strips 12 (with gaps not exceeding 1 mm). All linear strips 12 in their free state have their lower ends close to each other. Both the manure collector and the discharge pipe 2 are made of polytetrafluoroethylene (PTFE).

[0026] In this embodiment, the linear strip 12 is a flat strip with a maximum width of 5 mm and a thickness of 1 mm, and the lower end of the flat strip has a pointed structure; the linear strip 12 is made of polytetrafluoroethylene; the non-modified hopper 10 and the expandable hopper 11 are integrally molded. The angle between the linear strip 12 and the horizontal plane is 30°, and the angle between the inner wall of the non-modified hopper 10 and the horizontal plane is 60°. When manufacturing the expandable hopper 11, the overall structure of the sewage collector and the expandable hopper 11 is first formed by molding, and then multiple small slits are cut into the overall structure to form several closely arranged linear strips 12.

[0027] In this embodiment, a cylinder 13 is provided around the expansion bucket 11. The upper end of the cylinder 13 is sealed to the non-deformable bucket 10, and the lower end of the cylinder 13 is sealed to the manure discharge pipe 2. The inner cavity of the cylinder 13 can accommodate the movement of the linear strip 12, and the inner wall of the cylinder is arc-shaped. The cylinder 13 has a trumpet-shaped structure that is thinner at the top and thicker at the bottom. The lower end of the linear strip 12 is higher than the top of the manure discharge pipe 2. The manure discharge pipe 2 is a semi-circular pipe with its flat surface facing upwards and used to connect to the cylinder 13.

[0028] A method using the pig farm manure collection and treatment system described in this embodiment includes the following steps:

[0029] S01, close the valve at the end of the manure pipe 2 at a set time every day (e.g., 9 am) and open the valve at the end of the manure pipe 2 at a set time every day (e.g., 7 pm) to use urine to promote the downward flow and discharge of pig manure in the manure pipe 2; this step cleverly changes the existing method of using urine to urinate and defecate, and makes full use of the pig's urine to drive the flow of pig manure in the manure pipe 2.

[0030] S02, at a preset time (e.g., 9:00 AM every 10 days), close the valve at the end of the sewage pipe 2;

[0031] S03, open the valve at the beginning of the sewage pipe 2 and pour water into the sewage pipe 2 until the expansion hopper 11 is completely submerged below the liquid surface. Then close the valve at the beginning of the sewage pipe 2 and maintain this state for a set time. The main purpose of this step is to clean the linear strip 12 and deeply clean the sewage inside the sewage pipe 2.

[0032] S04, open the valve at the end of the sewage pipe 2 to discharge the sewage in the sewage pipe 2.

[0033] During use, the direction of pig manure falling is shown by the arrows in the diagram. The excreted pig manure falls directly into the manure collector. When the pig manure contacts the linear strip 12, the weight of the manure drives the linear strip 12 to move laterally outward (i.e., the expanding bucket 11 expands / opens radially), allowing the pig manure to fall smoothly and quickly into the discharge pipe 2. Then, with the help of the manure's fluidity or a small amount of added liquid, the manure can flow smoothly along the discharge pipe 2 (urine and manure are interspersed in the discharge pipe 2 but eventually mix together and flow forward). The flow direction of manure within the discharge pipe 2 is shown in the diagram. Figure 1 As indicated by the hollow arrow, the excreted pig urine falls directly into the manure discharge pipe 2 through the gap between the lower ends of the linear strips 12. A small amount of ammonia gas is generated during the process of the pig urine and feces remaining in the manure discharge pipe 2. Most of the ammonia gas generated in the manure discharge pipe 2 flows in the following direction: Figure 3 As indicated by the solid arrow, a large portion of this ammonia gas will accumulate in the space 14 between the cylinder 13 and the non-denatured hopper 10, and will be discharged along with the feces during subsequent periodic cleaning.

[0034] The existing automatic manure cleaning system in CN216701250U, which uses water-flushing to remove feces, shows a significant increase in ammonia concentration in the collection device's cavity starting from the third day after the inclined pipe valve is closed, reaching 21 ppm on the fourth day. However, the pig farm manure collection and treatment system in this embodiment maintains an ammonia concentration below 2 ppm in the manure collector for the first four days after the end valve of the discharge pipe 2 is closed. The existing automatic manure cleaning system in CN216701250U requires opening the inclined pipe valve every three days to discharge manure and flushing the funnels with low urine output. During this process, a large amount of manure accumulates in the inner cavity of some funnels. In contrast, the solution in this embodiment only requires keeping the end valve of the discharge pipe 2 open for continuous discharge, and cleaning the expansion hopper 11 of the manure collector every 10 days according to steps S02-S04.

[0035] Because of the aforementioned specific structure of the manure collector, its structure is very crucial and ingenious. Based on the flexibility of the linear bar 12 and the expansion bucket 11 formed by it, it can both expand and retract, so that pig manure can fall smoothly into the manure pipe 2 on its own. Even if there is too much urine / sewage, or during the subsequent process of rinsing the manure collector with water, it can prevent pig manure from flowing back into the manure collector.

[0036] The solution in this embodiment not only enables rapid collection and cleaning of pig farm manure without water or urine soaking, but also prevents pig manure from flowing back into the manure collector, reduces air pollution in the pigsty, and, more importantly, enables the manure collector to self-clean, effectively preventing pig manure from accumulating in the manure collector and effectively preventing manure from clogging the manure collector and discharge pipe. Example 2

[0037] A pig farm manure collection and treatment system, referring to Embodiment 1, differs from Embodiment 1 mainly in that: the angle between the linear strip 12 and the horizontal plane is 35°, and the angle between the inner wall of the non-deformed hopper 10 and the horizontal plane is 60°; the linear strip 12 is made of polytetrafluoroethylene strip with a maximum diameter of 3mm, and the linear strip 12 has an overall conical structure. Example 3

[0038] A pig farm manure collection and treatment system, referring to Embodiment 1, differs from Embodiment 1 mainly in that: the angle between the linear strip 12 and the horizontal plane is 45°, and the angle between the inner wall of the non-deformed hopper 10 and the horizontal plane is 45°; the linear strip 12 is made of polytetrafluoroethylene strip with a maximum diameter of 3mm, and the linear strip 12 has an overall conical structure.

Claims

1. A pig farm manure collection and treatment system, comprising a manure collector disposed below a slatted floor, the manure collector being funnel-shaped and connected to a manure discharge pipe (2), characterized in that: The sewage collector includes a non-deformable hopper (10) and an expandable hopper (11) that can deform radially. The expandable hopper (11) is connected to the lower end of the non-deformable hopper (10). The expandable hopper (11) is composed of several closely arranged linear strips (12). The lower ends of all the linear strips (12) in the free state are close to each other or close to each other. The linear strips (12) are flat strips or cylindrical strips. The maximum width of the flat strip is no more than 10 mm and the thickness is no more than 3 mm. The maximum diameter of the cylindrical strip is no more than 3 mm. The linear strips (12) are polytetrafluoroethylene strips with a length of no less than 15 cm. The angle between the linear strips (12) and the horizontal plane is 27~50°.

2. The pig farm manure collection and treatment system according to claim 1, characterized in that: The non-deformable bucket (10) and the expandable bucket (11) are integrally molded.

3. The pig farm manure collection and treatment system according to any one of claims 1-2, characterized in that: The angle between the inner wall of the non-deformed bucket (10) and the horizontal plane is 27~80°.

4. The pig farm manure collection and treatment system according to claim 3, characterized in that: A cylinder (13) is provided around the expansion bucket (11). The upper end of the cylinder (13) is sealed to the non-deformable bucket (10), and the lower end of the cylinder (13) is sealed to the manure pipe (2). The inner cavity of the cylinder (13) is able to allow the linear strip (12) to move.

5. The pig farm manure collection and treatment system according to claim 4, characterized in that: The cylindrical body (13) has a trumpet-shaped structure that is thinner at the top and thicker at the bottom.

6. The pig farm manure collection and treatment system according to claim 5, characterized in that: The lower end of the linear strip (12) is higher than the top of the manure pipe (2).

7. A method using the pig farm manure collection and treatment system according to any one of claims 1-6, characterized in that the steps are as follows: include: S01, close the valve at the end of the manure pipe (2) at a set time every day, and open the valve at the end of the manure pipe (2) at a set time every day to use urine to promote the downward flow and discharge of the pigs in the manure pipe (2); S02, at the preset time point, close the valve at the end of the sewage pipe (2); S03, open the valve at the head of the sewage pipe (2), pour water into the sewage pipe (2), and close the valve at the head of the sewage pipe (2) when the expansion bucket (11) is completely submerged below the liquid surface, and then maintain this state for a set time; S04, open the valve at the end of the sewage pipe (2) to discharge the sewage in the sewage pipe (2).

8. The method according to claim 7, characterized in that: The manure pipe (2) is a semi-circular pipe or a round pipe.

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