A manure discharge channel and manure collection system for a clean large-scale pig farm

Abstract

The present invention discloses a manure discharge channel and manure collection system for a clean large-scale pig farm, the manure discharge channel includes a manure-leaking plate laid in the excretion area of ​​the pig house body, a collection chamber is provided below the manure-leaking plate, an obliquely installed flip baffle is provided inside the collection chamber, and the angle between the relatively low end and the inner wall of the collection chamber is 90°, a collection trough is provided below the flip baffle, a conveying module is provided in the trough, and a cleaning module is provided between the manure-leaking plate and the flip baffle. The manure collection system includes the above-mentioned manure discharge channel. The manure discharge channel of the present invention has the advantages of reasonable structure, low cost, and easy installation. It can not only collect manure quickly and effectively, but also clean up residual manure in time. It is a new type of manure collection device that can be widely used, which is not only conducive to providing a cleaner environment, but also conducive to realizing the resource utilization of manure, which is of great significance for the ultimate realization of "zero pollution and full disposal" of manure.

Description

Technical Field

[0001] The invention belongs to the technical field of livestock manure treatment, and relates to a manure discharge channel and a manure collection system for a clean large-scale pig farm. Background Art

[0002] With the continuous increase in the number of live pigs and their consumption, large-scale and standardized pig farming is an inevitable development trend; at the same time, the development of the pig farming industry towards environmental friendliness and clean production is also an inevitable trend.

[0003] For the various manures and sewage produced, most pig farms mainly adopt the traditional treatment mode of collecting all the manures and sewage and returning them to the fields or recycling the manures and sewage through biogas fermentation. Usually, the fertilizer efficiency of direct return to the fields is very low, which can easily cause the spread of pests and diseases and even burn the seedlings due to secondary fermentation. In addition, direct return to the fields can easily cause secondary pollution and affect people's normal lives. The initial capital for biogas fermentation of manure and sewage is large, the operating cost is high, and the requirements for building materials, processes, and construction are relatively high. If the requirements are not met, it is easy to cause gas leakage or even no gas production, and the fermentation process is easily affected by the season, resulting in slow gas production and low efficiency in winter. At present, although many pig farms are equipped with complete disposal facilities, due to cost considerations, many facilities cannot be fully operated, and the functions of manure and sewage disposal facilities have not been fully utilized, resulting in relatively low efficiency of manure and sewage treatment and resource utilization in the entire breeding field.

[0004] The source of manure in pig farms is the pig house. The collection and pretreatment of manure in pig houses not only have an important impact on the amount and concentration of pollutants, but also are related to the cost and method of subsequent treatment and resource utilization. At present, the manure and urine produced in pig houses are mainly flushed into the collection pool under the pig house by manual flushing, and then transferred to the subsequent treatment device / process for further treatment. However, the above-mentioned manure and urine collection method still has the following defects: (a) The degree of automation is low, and the use of manual flushing will increase the workload of the breeders; (b) The output of manure composed of manure, urine and flushing water is large, and the volume of the collection pool is large, which is not conducive to reducing the land use of pig farms and reducing breeding costs; (c) The manure cannot be transferred in time and the manure is not cleaned thoroughly, resulting in a large amount of air pollutants in the pig house, including microbial aerosols (bacterial aerosols, viral aerosols and fungal aerosols), particulate matter (TSP, PM 10 , PM 2.5) and harmful gases (NH3, CO2, CO, NO). The presence of these pollutants can easily lead to the growth of pathogens in the pig house, thereby causing disease outbreaks in pigs, which seriously hinders the healthy development of large-scale pig farming and is also detrimental to the health of the staff in the pig house. In addition, since there are a lot of sticky substances in pig manure and urine, if they fall directly onto the surface of the collection device below, these feces and dirt will directly adhere to the surface of the collection device. In particular, due to the long-term failure to clean up in time, it will not only increase the difficulty of subsequent cleaning, but also leave a large amount of feces and dirt on the surface of the collection device, which will eventually increase the difficulty of handling or bring new pollution. Therefore, designing a feces discharge channel that can quickly and effectively collect feces and dirt, and can clean up the residual feces and dirt in time, is not only conducive to the effective collection of feces and dirt, and provide a cleaner environment for large-scale pig farms, but also conducive to the resource utilization of feces and dirt, which is of great significance for the ultimate realization of "zero pollution, full absorption" of feces and dirt. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a manure discharge channel and manure collection system for a clean large-scale pig farm that can quickly and effectively collect manure and sewage and promptly clean up residual manure and sewage.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A manure discharge channel for a clean large-scale pig farm, comprising a manure-slatted plate laid in the excretion area of ​​a pig house body; a collecting chamber is provided below the manure-slatted plate; an obliquely installed flip baffle is provided inside the collecting chamber; a relatively low end of the flip baffle has an angle of 90° with the inner wall of the collecting chamber; a collecting trough is provided below the flip baffle, and a conveying module for transporting manure is provided in the collecting trough; a plurality of cleaning modules for cleaning manure are provided on the inner wall of the collecting chamber between the manure-slatted plate and the flip baffle.

[0008] As a further improvement of the above technical solution: a rotating shaft is provided inside the collection chamber; the rotating shaft is fixed below the relatively higher end of the flip baffle in the collection chamber, or fixed below the central axis of the flip baffle; and a motor is connected to the rotating shaft.

[0009] As a further improvement of the above technical solution: a retractable slot for supporting the flip baffle is provided on the inner wall of the collection chamber, and the retractable slot is located below a relatively lower end of the flip baffle in the collection chamber.

[0010] As a further improvement of the above technical solution: the retractable slot includes a slot body fixed on the collecting chamber and a support block for supporting the flip baffle, the support block is fixed to the slot body by an elastic member, and a guide rod for fixing the support block is also provided inside the elastic member; the guide rod is perpendicular to the inner wall of the collecting chamber, and one end of the guide rod away from the support block passes through the slot body and is connected to an axial transmission assembly for stretching the support block; the axial transmission assembly includes a motor and an electronic control assembly for controlling the rotation of the motor; the elastic member is a spring.

[0011] As a further improvement of the above technical solution: a sewage collection channel is also connected to the flip baffle at a 90° angle to the inner wall of the collection chamber.

[0012] As a further improvement of the above technical solution: the conveying module includes a screw conveying shaft located in the collecting trough and a rotating transmission component connected to the screw conveying shaft; the rotating transmission component includes a motor and an electronic control component for controlling the rotation of the motor.

[0013] As a further improvement of the above technical solution: the cleaning module includes a nozzle located on the inner wall of the collection chamber, and the nozzle is connected to a water tank through a pipeline; an electric control switch for regulating the flow rate of cleaning water is also provided on the pipeline between the nozzle and the water tank.

[0014] As a further improvement of the above technical solution: the collecting chamber is a V-shaped cavity; the collecting groove is a U-shaped groove or a circular groove.

[0015] As a general technical concept, the present invention also provides a manure collection system for a clean large-scale pig farm, including a plurality of manure discharge channels arranged below the excretion area of ​​the pig house body.

[0016] As a further improvement of the above technical solution: the manure collection system also includes a dry-wet separator and a sewage pool; the mud outlet of the dry-wet separator is connected to the dry manure pool, the ultra-high temperature aerobic fermentation device and the automatic packaging device in sequence; the water outlet of the dry-wet separator is connected to the sewage pool; the sewage pool is connected to an anaerobic fermentation device, the gas outlet of the anaerobic fermentation device is connected to a biogas power generation device, the mud outlet of the anaerobic fermentation device is connected to a fertilizer mixing device, and the fertilizer mixing device is also connected to a rainwater collection pool for collecting rainwater in the area where the pig farm is located; the outlet of the collecting trough is connected to the dry-wet separator, and the outlet of the sewage collection channel is connected to the sewage pool.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) The present invention provides a manure discharge channel for a clean large-scale pig farm, comprising a manure-slatted plate laid in the excretion area of ​​the pig house body; a collecting chamber is provided below the manure-slatted plate; an obliquely installed flip baffle is provided inside the collecting chamber; the relatively lower end of the flip baffle has an angle of 90° with the inner wall of the collecting chamber; a collecting trough is provided below the flip baffle, and a conveying module for transporting manure is provided in the collecting trough; a plurality of cleaning modules for cleaning manure are provided on the inner wall of the collecting chamber between the manure-slatted plate and the flip baffle. In the present invention, an obliquely installed reversible baffle is provided inside the collection chamber. During collection, most of the manure and sewage generated in the pig house falls on the reversible baffle and gradually gathers at the relatively low end of the reversible baffle. After reaching the set weight, the baffle is reversed under the action of gravity, so that the manure and sewage automatically enter the collection trough at the bottom of the collection chamber without assistance, and then the manure and sewage are transported to the subsequent treatment equipment / process through the conveying module. After the manure and sewage have completely fallen off, the reversible baffle returns to its position at an angle of 90° with the inner wall of the collection chamber, and the cleaning procedure is started. Specifically, the cleaning module arranged between the manure-leaking plate and the reversible baffle is used to start the water-saving flushing technology to flush the reversible baffle and the inner wall of the collection chamber above it. The cleaning wastewater can be directly discharged into The collecting trough at the bottom of the collecting chamber can also be discharged from the collecting chamber through other forms (such as sewage collection pipes) and transferred to other sewage treatment equipment / treatment processes for further treatment. It can be seen that in the present invention, the effective collection of feces and sewage can be achieved through the synergistic effect of the flip baffle, the conveying module, and the cleaning module. Since the collection process of the above-mentioned sewage and sewage is timely, efficient, and thorough, it can also effectively reduce the generation of air pollutants and avoid secondary environmental pollution to the pig farm. At the same time, since the collection and cleaning process can be controlled manually or mechanically automatically, the work intensity of the relevant operators can be significantly reduced. More importantly, the collection and cleaning are carried out separately, which is also conducive to the separate collection of feces and sewage and cleaning wastewater, and is conducive to the subsequent resource reuse of the two. In addition, in the present invention, the water-saving flushing technology with a high-pressure equal flow nozzle is used to clean the automatic feces and sewage collection system regularly, which can realize automatic control, reduce labor costs, and improve cleaning efficiency; at the same time, the feces and sewage can be cleaned in time to reduce the foul gas emitted by the feces and sewage in the house, providing a good breeding environment for the growth and reproduction of pigs, and effectively preventing epidemics. The manure discharge channel of the clean large-scale pig farm of the present invention has the advantages of reasonable structure, low cost, easy installation, etc. It can not only quickly and effectively collect manure and sewage, but also clean up residual manure and sewage in time. It is a new type of manure and sewage collection device that can be widely used in clean large-scale pig farms. It is not only conducive to the effective collection of manure and sewage, providing a cleaner environment for large-scale pig farms, but also conducive to the resource utilization of manure and sewage, which is of great significance for the ultimate realization of "zero pollution, full disposal" of manure and sewage.

[0019] (2) The present invention provides a manure collection system for a clean large-scale pig farm. By arranging a plurality of manure discharge channels below the excretion area of ​​the pig house body, manure and cleaning wastewater generated in the pig house are effectively collected, and then the dry manure is converted into organic fertilizer by the combined treatment of a dry-wet separator and an ultra-high temperature aerobic fermentation device in sequence, so as to realize the subsequent resource utilization of the dry manure. At the same time, the sewage is combined with a sewage tank, an anaerobic fermentation device, a biogas power generation device, and a fertilizer mixing device to realize the subsequent resource utilization of the sewage. Specifically, by directly performing dry-wet separation on the various manure generated by the pig house at the rear end of the manure discharge channel, the investment in the construction of the biogas tank can be reduced. The dry manure after dry-wet separation is harmlessly treated by high-temperature composting and used as organic fertilizer. The biogas produced by the sewage after anaerobic fermentation is used for power generation, and the biogas liquid is used for irrigating the orchard. It can be seen that the entire system improves the treatment efficiency and resource utilization efficiency of pig farm manure and achieves "zero pollution and full absorption" of manure and sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] Figure 1 This is a schematic diagram of the structure of the manure discharge channel of the clean large-scale pig farm in Example 1 of the present invention.

[0022] Figure 2 This is a schematic diagram of the manure collection system of the clean large-scale pig farm in Example 1 of the present invention.

[0023] Legend:

[0024] 1. Leaky floor; 2. Collection chamber; 3. Flippable baffle; 4. Collection tank; 5. Cleaning module; 6. Rotating shaft; 7. Retractable slot; 8. Sewage collection channel. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0026] Example 1

[0027] like Figure 1As shown, the manure discharge channel of the clean large-scale pig farm of this embodiment includes a manure-slatted plate 1 laid in the excretion area of ​​the pig house body; a collecting chamber 2 is provided below the manure-slatted plate 1; an obliquely installed reversible baffle 3 is provided inside the collecting chamber 2; the relatively lower end of the reversible baffle 3 has an angle of 90° with the inner wall of the collecting chamber 2; a collecting trough 4 is provided below the reversible baffle 3, and a conveying module for transporting manure is provided in the collecting trough 4; a plurality of cleaning modules 5 for cleaning manure are provided on the inner wall of the collecting chamber 2 between the manure-slatted plate 1 and the reversible baffle 3.

[0028] In this embodiment, a rotating shaft 6 is provided inside the collecting chamber 2; the rotating shaft 6 is fixed below the relatively higher end of the flip baffle 3 in the collecting chamber 2. In addition, the rotating shaft 6 can also be fixed below the central axis of the flip baffle 3; the rotating shaft 6 is connected to a motor.

[0029] In this embodiment, a retractable slot 7 for supporting the flip baffle 3 is provided on the inner wall of the collection chamber 2 , and the retractable slot 7 is located below a relatively lower end of the flip baffle 3 in the collection chamber 2 .

[0030] In this embodiment, the retractable slot 7 includes a slot body fixed on the collecting chamber 2 and a support block for supporting the flip baffle 3, the support block is fixed to the slot body by an elastic member, and a guide rod for fixing the support block is also provided inside the elastic member; the guide rod is perpendicular to the inner wall of the collecting chamber 2, and one end of the guide rod away from the support block passes through the slot body and is connected to an axial transmission assembly for stretching the support block; the axial transmission assembly includes a motor and an electronic control assembly for controlling the rotation of the motor; the elastic member is a spring.

[0031] In this embodiment, a sewage collection channel 8 is connected to the flip baffle 3 at a 90° angle to the inner wall of the collection chamber 2 .

[0032] In this embodiment, the conveying module includes a screw conveying shaft located in the collecting tank 4 and a rotating transmission component connected to the screw conveying shaft; the rotating transmission component includes a motor and an electronic control component for controlling the rotation of the motor.

[0033] In this embodiment, the cleaning module 5 includes a nozzle located on the inner wall of the collection chamber 2, and the nozzle is connected to a water tank through a pipe; an electric control switch for regulating the flow rate of cleaning water is also provided on the pipe between the nozzle and the water tank.

[0034] In this embodiment, the collecting chamber 2 is a V-shaped cavity; the collecting groove 4 is a circular groove, and can also be a U-shaped groove.

[0035] like Figure 2 As shown, the manure collection system of the clean large-scale pig farm of this embodiment includes a plurality of the above-mentioned manure discharge channels arranged below the excretion area of ​​the pig house body.

[0036] like Figure 2 As shown, in this embodiment, the manure collection system also includes a dry-wet separator, a sewage tank, and a dry manure tank; the mud outlet of the dry-wet separator is connected to the dry manure tank, the ultra-high temperature aerobic fermentation device and the automatic packaging device of commercial organic fertilizer in sequence; the water outlet of the dry-wet separator is connected to the sewage tank; the sewage tank is connected to the anaerobic fermentation device, the gas outlet of the anaerobic fermentation device is connected to the biogas power generation device, the mud outlet of the anaerobic fermentation device is connected to the fertilizer mixing device, and the fertilizer mixing device is also connected to a rainwater collection tank for collecting rainwater in the pig farm area; the outlet of the collecting trough 4 is connected to the dry-wet separator, and the outlet of the sewage collection channel 8 is connected to the sewage tank.

[0037] In summary, the manure discharge channel of the clean large-scale pig farm of the present invention has the advantages of reasonable structure, low cost, and easy installation. It can not only quickly and effectively collect manure and sewage, but also clean up residual manure and sewage in time. It is a new type of manure and sewage collection device that can be widely used in clean large-scale pig farms. It is not only conducive to the effective collection of manure and sewage, providing a cleaner environment for large-scale pig farms, but also conducive to the resource utilization of manure and sewage, which is of great significance for the ultimate realization of "zero pollution, full disposal" of manure and sewage. Furthermore, the present invention provides a manure and sewage collection system for clean large-scale pig farms. By setting a number of manure discharge channels below the excretion area of ​​the pig house body, the processing efficiency and resource utilization efficiency of pig farm manure and sewage are significantly improved, and the "zero pollution, full disposal" of fecal sewage is achieved.

[0038] The above embodiments are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A manure discharge channel for a clean large-scale pig farm, characterized in that: The invention comprises a slatted floor (1) laid in the excretion area of ​​a pig house body; a collecting chamber (2) is provided below the slatted floor (1); an obliquely installed reversible baffle (3) is provided inside the collecting chamber (2); a relatively low end of the reversible baffle (3) forms an angle of 90° with the inner wall of the collecting chamber (2); during collection, feces and dirt fall onto the reversible baffle (3) and gather at the relatively low end of the reversible baffle (3); when a set weight is reached, the reversible baffle (3) is reversed under the action of gravity; a collecting trough (4) is provided below the reversible baffle (3), and a conveying module for conveying feces and dirt is provided in the collecting trough (4); a plurality of cleaning means for conveying feces and dirt are provided on the inner wall of the collecting chamber (2) between the slatted floor (1) and the reversible baffle (3); A cleaning module (5) for washing feces and sewage; the collecting chamber (2) is a V-shaped cavity; a rotating shaft (6) is provided inside the collecting chamber (2); the rotating shaft (6) is fixed below the relatively higher end of the reversible baffle (3) in the collecting chamber (2), or fixed below the central axis of the reversible baffle (3); a motor is connected to the rotating shaft (6); a retractable slot (7) for supporting the reversible baffle (3) is provided on the inner wall of the collecting chamber (2), and the retractable slot (7) is located below the relatively lower end of the reversible baffle (3) in the collecting chamber (2); a sewage collection channel (8) is also connected to the reversible baffle (3) at a 90° angle to the inner wall of the collecting chamber (2); the cleaning module (5) comprises a nozzle located on the inner wall of the collecting chamber (2).

2. The manure discharge channel of the clean large-scale pig farm according to claim 1 is characterized in that: The retractable slot (7) comprises a slot body fixed on the collection chamber (2) and a support block for supporting the flip baffle (3); the support block is fixed to the slot body by an elastic member, and a guide rod for fixing the support block is also provided inside the elastic member; the guide rod is perpendicular to the inner wall of the collection chamber (2), and one end of the guide rod away from the support block passes through the slot body and is connected to an axial transmission component for stretching the support block; the axial transmission component comprises a motor and an electric control component for controlling the rotation of the motor; and the elastic member is a spring.

3. The manure discharge channel of the clean large-scale pig farm according to claim 1 or 2, characterized in that: The conveying module comprises a screw conveying shaft located in the collecting tank (4) and a rotating transmission component connected to the screw conveying shaft; the rotating transmission component comprises a motor and an electric control component for controlling the rotation of the motor.

4. The clean manure discharge channel for large-scale pig farms according to claim 1 or 2, characterized in that: The nozzle is connected to a water tank via a pipeline; an electric control switch for regulating the flow of cleaning water is also provided on the pipeline between the nozzle and the water tank.

5. The clean manure discharge channel for large-scale pig farms according to claim 1 or 2, characterized in that: The collecting groove (4) is a U-shaped groove or a circular groove.

6. A clean-type large-scale pig farm manure collection system, characterized in that: The invention comprises a plurality of manure discharge channels according to any one of claims 1 to 5, which are arranged below the excretion area of ​​the pig house body.

7. The clean-type large-scale pig farm manure collection system according to claim 6 is characterized in that: The manure collection system also includes a dry-wet separator and a sewage pool; the mud outlet of the dry-wet separator is connected to the dry manure pool, the ultra-high temperature aerobic fermentation device and the automatic packaging device in sequence; the water outlet of the dry-wet separator is connected to the sewage pool; the sewage pool is connected to an anaerobic fermentation device, the gas outlet of the anaerobic fermentation device is connected to a biogas power generation device, the mud outlet of the anaerobic fermentation device is connected to a fertilizer mixing device, and the fertilizer mixing device is also connected to a rainwater collection pool for collecting rainwater in the pig farm area; the outlet of the collection tank (4) is connected to the dry-wet separator, and the outlet of the sewage collection channel (8) is connected to the sewage pool.

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