CN215403715U

CN215403715U - Large-scale pig farm pig manure resourceful treatment system

Info

Publication number: CN215403715U
Application number: CN202120380193.3U
Authority: CN
Inventors: 高利伟
Original assignee: Guangdong Guangken Animal Husbandry Group Co ltd; Guangdong Guangken Animal Husbandry Engineering Research Institute Co ltd
Current assignee: Guangdong Guangken Animal Husbandry Group Co ltd; Guangdong Guangken Animal Husbandry Engineering Research Institute Co ltd
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2022-01-04
Anticipated expiration: 2031-02-19

Abstract

The utility model discloses a large-scale pig manure recycling treatment system for a pig farm, which comprises a stirring pool, a dehydration device, a first conveying device, a premixing device, a fermentation device and a deodorization device which are sequentially connected, wherein the premixing device comprises a premixing machine and a composting groove, the composting groove is communicated with the premixing machine, the first conveying device is provided with a conveying pipe, a blower, an air pipe and a nozzle, one end of the conveying pipe is communicated with the dehydration device, the other end of the conveying pipe is communicated with the premixing machine, the blower, the air pipe and the nozzle are sequentially connected, and the nozzle is fixedly installed in the conveying pipe. The solid manure recycling treatment system is mainly formed by a dewatering device, a premixing device, a fermentation device and a deodorization device aiming at a large-scale pig farm, and is used for solving the two problems of large odor and high water content in the solid manure treatment of the existing pig farm, reducing the biosafety risk and the environmental risk generated by manure transportation, improving the harmless treatment efficiency of the pig manure, improving the utilization rate of the pig manure recycling and avoiding resource waste.

Description

Large-scale pig farm pig manure resourceful treatment system

Technical Field

The utility model relates to the technical field of animal breeding, in particular to a large-scale pig farm pig manure recycling treatment system.

Background

China is a big livestock and poultry breeding country, and the quantity of livestock and poultry manure produced by livestock and poultry breeding every year is incredible. According to statistics, the production amount of livestock and poultry manure is nearly 40 hundred million tons every year in China, and the livestock and poultry manure becomes one of the main pollution sources of non-point source pollution of the environment. A large amount of nitrogen, phosphorus and potassium nutrient resources are contained in the livestock and poultry manure and are misplaced resources. However, if the livestock and poultry manure is not subjected to harmless treatment, the potential harm to the ecological environment caused by random discharge of the livestock and poultry manure is huge. Therefore, the harmlessness and the resource are the main directions of treating the livestock and poultry breeding feces in the future of China.

China is a big pork consuming country, and the pork consumption in 2018 is 5519.08 ten thousand tons. Under the influence of the epidemic situation of African swine fever, the domestic pork yield in 2019 is 4255 ten thousand tons, the ring-slip ratio is 21.98 percent, the pork consumption is only 3793.7 ten thousand tons, and the new pork consumption is low in nearly 15 years. In order to recover the productivity as soon as possible and guarantee the meat supply of citizens, the government of China has an active policy, large-scale breeding enterprises are encouraged to build large-scale pig farms, and the market supply of pork is increased. At present, the newly-built large-scale pig farm has few hundreds of thousands of pigs, and many hundreds of thousands of pigs or even millions of pigs, so that the large breeding scale causes the excrement treatment to face huge pressure on the aspects of investment, facility operation, treatment technology and the like.

The daily production of feces in large scale pig farms is also considerable. The feces produced in a pig farm is nearly 100 tons per day calculated in 5 ten thousand farms in a hurdle every year. Therefore, how to properly treat the feces produced by the large-scale pig farm every day so as to achieve harmless and resource utilization is an important subject faced by each pig farm. At present, the common method is that after solid-liquid separation, the moisture content of solid manure is about 70%, the solid manure is directly loaded into a closed tank car to be transported away, and sewage is subjected to harmless treatment in a field, so that the transportation cost is very high; or all the excrement enters the anaerobic fermentation process to generate biogas for power generation, and the residual biogas residues need to be further processed and then transported out, so that the slag removal workload of the anaerobic fermentation tank is large, the content of nutrient resources in the processed biogas residues is low, and the resource value is greatly reduced.

Therefore, a harmless and recycling treatment system for pig manure in a large-scale pig farm is urgently needed at present, and is used for solving the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a large-scale pig farm pig manure recycling treatment system.

According to one aspect of the utility model, the large-scale pig farm pig manure recycling treatment system comprises a stirring pool, a dehydration device, a first conveying device, a premixing device, a fermentation device and a deodorization device which are sequentially connected, wherein the premixing device comprises a premixing machine and a composting groove, the composting groove is communicated with the premixing machine, the first conveying device is provided with a conveying pipe, a blower, an air pipe and a spray head, one end of the conveying pipe is communicated with the dehydration device, the other end of the conveying pipe is communicated with the premixing machine, the blower, the air pipe and the spray head are sequentially connected, and the spray head is fixedly installed in the conveying pipe.

The utility model has the beneficial effects that: the solid manure recycling treatment system is mainly used for large-scale pig farms, and is formed through the matched dehydration device, the premixing device, the fermentation device and the deodorization device, so that the problems of large odor and high water content in the solid manure treatment of the existing pig farms are solved, the biosafety risk and the environmental risk generated by manure transportation are reduced, the pressure of transportation is reduced, the harmless treatment efficiency of the pig manure is improved, the utilization rate of the pig manure recycling is improved, and the resource waste is avoided.

In some embodiments, the stirring tank comprises a feeding pipe, a discharging pipe and a tank body, wherein a stirrer and a submersible sewage pump are arranged in the tank body, the submersible sewage pump is communicated with one end of the discharging pipe, the tank body is a closed tank body, the feeding pipe extends into the tank body, and the feeding pipe is used for receiving pig manure in the manure ditch. The stirring tank plays a role in temporarily collecting and storing the pig manure.

In some embodiments, the dewatering apparatus comprises a solid-liquid separation device, a platform, and a hopper bin, the solid-liquid separation device being mounted on the platform, the hopper bin being in communication with the solid-liquid separation device. The dewatering device is used for dewatering the pig manure, removing moisture in the pig manure, and solving the problems of high water content and inconvenient transportation of the pig manure.

In some embodiments, the solid-liquid separation equipment comprises a spiral extrusion type solid-liquid separator and a plate-frame type solid-liquid separator, the other end of the discharge pipe is communicated with one end of the spiral extrusion type solid-liquid separator, the other end of the spiral extrusion type solid-liquid separator is communicated with one end of the plate-frame type solid-liquid separator, and the other end of the plate-frame type solid-liquid separator is communicated with the funnel bin. Partial water in the pig manure can be removed through two different dehydration treatments.

In some embodiments, the hopper bin is provided with a lower opening, and one end of the first transmission device is communicated with the lower opening, and the other end of the first transmission device is communicated with the premixing machine. The funnel bin further removes the moisture in the pig manure.

In some embodiments, the premixing device further comprises a second conveyor having one end in communication with the composting tank and the other end in communication with the premixer, and a third conveyor having one end in communication with the premixer and the other end in communication with the fermentation device. The premixing device mixes the pig manure which is subjected to harmless treatment with the dehydrated pig manure, so that the subsequent fermentation treatment of the pig manure is facilitated.

In some embodiments, the second conveyor has the same conveying speed as the first conveyor. Mixing the raw materials in a ratio of 1:1, the pig manure after innocent treatment and the dehydrated pig manure are mixed in proportion, so that a better fermentation effect can be achieved.

In some embodiments, the fermentation device comprises a tank body, a motor, a driving shaft, a stirring paddle, an aeration pipe and a heat insulation layer, wherein the tank body is provided with an upper opening, a discharge opening and a collection opening, the upper opening is positioned at the top of the tank body, the discharge opening is positioned below the side wall of the tank body, and the collection opening is positioned at the bottom of the tank body. The mixed pig manure is convenient to ferment.

In some embodiments, the driving shaft is located at the center of the tank body, the motor is fixedly installed at the upper end of the driving shaft, the stirring paddle is fixedly installed at the lower end of the driving shaft, the aeration pipe is installed at the bottom of the side wall of the tank body, and the heat insulation layer covers the outer side of the tank body. In the fermentation process, the pig manure can be stirred, aerated and the like.

In some embodiments, the deodorizing means is a deodorizing tower, the deodorizing tower being in communication with the collection port. The deodorization tower collects and processes odor generated in the fermentation process, so that the odor of the fermented pig manure is reduced, and the influence on the environment is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a large-scale pig farm pig manure recycling system according to an embodiment of the utility model.

Detailed Description

The present invention will be described in further detail with reference to examples.

Referring to fig. 1, the utility model provides a large-scale pig farm pig manure recycling treatment system, which comprises a stirring pool 1, a dehydration device 2, a first conveying device 3, a premixing device 4, a fermentation device 5 and a deodorization device 6 which are connected in sequence.

The stirring tank 1 comprises a feeding pipe 11, a discharging pipe 12 and a tank body 13, the tank body 13 is a closed tank body, a stirrer 131 and a submersible sewage pump 132 are arranged in the tank body 13, the submersible sewage pump 132 is installed at the bottom of the tank body 13 and is communicated with one end of the discharging pipe 12, the feeding pipe 11 extends into the tank body 13, the feeding pipe 11 is used for receiving pig manure in a manure ditch, and the pig manure in the manure ditch enters the tank body 13 through the feeding pipe 11.

The dewatering device 2 comprises a solid-liquid separation apparatus 21, a platform 22 and a hopper bin 23. The solid-liquid separation equipment 21 comprises a spiral extrusion type solid-liquid separator 211 and a plate-frame type solid-liquid separator 212, the number of the platforms 22 is two, and the spiral extrusion type solid-liquid separator 211 and the plate-frame type solid-liquid separator 212 are respectively arranged on the two platforms 22. The other end of the discharge pipe 12 is communicated with one end of a spiral extrusion type solid-liquid separator 211, the other end of the spiral extrusion type solid-liquid separator 211 is communicated with one end of a plate-frame type solid-liquid separator 212, and the other end of the plate-frame type solid-liquid separator 212 is communicated with the upper part of the funnel bin 23.

The hopper bin 23 is provided with a lower opening, one end of the first transmission device 3 is communicated with the lower opening, and the other end of the first transmission device is communicated with the premixer 41. The first conveying device 3 is provided with a conveying pipe 31, a blower 32, an air pipe 33 and a spray head 34, the blower 32, the air pipe 33 and the spray head 34 are sequentially connected, deodorizing bacteria powder is placed in the spray head 34, and the spray head 34 is fixedly installed in the conveying pipe 31. After the blower 32 is started, the air pipe 33 conveys air to the spray head 34, and the deodorization bacterial powder in the spray head 34 is uniformly sprayed in the dehydrated pig manure conveyed in the conveying pipe 31. The conveying pipe 31 is a packing auger.

The premixing device 4 comprises a premixer 41, a composting tank 42, a second conveyor 43 and a third conveyor 44. Pig manure after innocent treatment is placed in the composting groove 42, one end of the second conveying device 43 is communicated with the composting groove 42, and the other end of the second conveying device is communicated with the pre-mixer 41, so that the pig manure after innocent treatment in the composting groove 42 is conveyed into the pre-mixer 41. The second conveyor 43 has the same conveying speed as the first conveyor 3, and feeds the dehydrated pig manure mixed with the deodorized bacterial powder and the innocent-treated pig manure into the premixer 41 at a ratio of 1:1 for premixing. The second conveyor 43 and the third conveyor 44 are augers. One end of the third conveying device 44 is communicated with the pre-mixer 41, and the other end is communicated with the tank body 51 of the fermentation device 5, and the pre-mixed materials are sent into the fermentation device 5 for fermentation treatment.

The fermentation device 5 comprises a tank body 51, a motor 52, a driving shaft 53, a stirring paddle 54, an aeration pipe 55 and a heat insulation layer 56, wherein the tank body 51 is provided with an upper opening 511, a discharge opening 512 and a collection opening 513, the upper opening 511 is positioned at the top of the tank body 51, the discharge opening 512 is positioned below the side wall of the tank body 51, and the collection opening 513 is positioned at the bottom of the tank body 51. The driving shaft 53 is positioned at the center of the tank body 51, the motor 52 is fixedly arranged at the upper end of the driving shaft 52, the stirring paddle 54 is positioned in the tank body 51 and is fixedly arranged at the lower end of the driving shaft 53, the aeration pipe 55 is arranged at the bottom of the side wall of the tank body 51, and the heat insulation layer 56 covers the outer side of the tank body 51. The material gets into jar body 51 from upper mouth 511 in, and motor 52 starts, and drive shaft 53 drives stirring rake 54 and stirs the material in jar body 51, and insulating layer 56 plays the heat preservation effect to jar body 51 inside, and aeration pipe 55 is aerated jar body 51 in, is convenient for the material to ferment. After the fermentation of the material is completed, the material is transported out from the discharge port 512. The can 51 is made of stainless steel.

The deodorizing means 6 is a deodorizing tower which is communicated with the collecting port 513. Odor generated by material fermentation is absorbed by the deodorizing tower through the collecting port 513 and is intensively subjected to deodorizing treatment so as to reduce odor of materials in the tank body.

In the using process of the utility model, pig manure in the pig house manure ditch enters the tank body 13 of the stirring tank 1 through the feed pipe 11, the stirrer 131 is started to stir the pig manure in the tank body 13, the pig manure in the tank body 13 is pumped into the discharge pipe 12 through the submersible sewage pump 132 and is conveyed into the spiral extrusion type solid-liquid separator 211 through the discharge pipe 12, the pig manure is dehydrated for the first time in the spiral extrusion type solid-liquid separator 211 and then enters the plate-frame type solid-liquid separator 212 through the pipeline to be dehydrated for the second time, and then enters the funnel bin 23 to be dehydrated, and after the dehydration treatment, the moisture in the pig manure is basically removed, and the moisture content is reduced.

The first conveying device 3 conveys the dehydrated pig manure to the pre-mixer 41 from the lower opening of the funnel bin 23, and in the conveying process, the air blower 32 is started, and the spray nozzles 34 in the conveying pipe 31 uniformly spray deodorant bacterial powder to the pig manure. The second conveyer 43 conveys the pig manure after the harmless treatment in the composting tank 42 to the pre-mixer 41, the first conveyer 3 and the second conveyer 43 have the same conveying speed, and the dehydrated pig manure and the harmless pig manure are mixed in the pre-mixer 41 in a ratio of 1: 1. The mixed material is transported from the premixer 41 to the tank 51 by the third conveyor 44, and fermentation is performed in the tank 51. The odor generated during the fermentation process is collected by the deodorizing tower through the collecting port 513 and is subjected to deodorizing treatment. After the fermentation is finished, the materials are conveyed out through a discharge port 512 to obtain harmless pig manure which can be directly transported or used for other processing.

The above description is only for the embodiments of the present invention, and it is obvious to those skilled in the art that various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The utility model provides a scale pig farm pig manure resourceful treatment system, a serial communication port, including stirring pond, dewatering device, first conveyer, premixing device, fermenting installation and the deodorizing device who connects gradually, premixing device includes premixer and composting groove, composting groove with premixer looks UNICOM, first conveyer is equipped with conveying pipe, air-blower, tuber pipe and shower nozzle, conveying pipe's one end with dewatering device looks UNICOM, the other end with premixer looks UNICOM, air-blower, tuber pipe and shower nozzle connect gradually, the shower nozzle fixed mounting be in the conveying pipe.

2. The large-scale pig farm pig manure recycling system according to claim 1, wherein the stirring tank comprises a feeding pipe, a discharging pipe and a tank body, a stirrer and a submersible sewage pump are arranged in the tank body, the submersible sewage pump is communicated with one end of the discharging pipe, the tank body is a closed tank body, the feeding pipe extends into the tank body, and the feeding pipe is used for receiving pig manure in a manure ditch.

3. The large-scale pig farm pig manure recycling system according to claim 2, wherein the dewatering device comprises a solid-liquid separation device, a platform and a funnel bin, the solid-liquid separation device is mounted on the platform, and the funnel bin is communicated with the solid-liquid separation device.

4. The large-scale pig farm pig manure recycling system according to claim 3, wherein the solid-liquid separation equipment comprises a spiral extrusion type solid-liquid separator and a plate-and-frame type solid-liquid separator, the other end of the discharge pipe is communicated with one end of the spiral extrusion type, the other end of the spiral extrusion type is communicated with one end of the plate-and-frame type solid-liquid separator, and the other end of the plate-and-frame type solid-liquid separator is communicated with the funnel bin.

5. The system for recycling pig manure from a large-scale pig farm as claimed in claim 3, wherein the hopper bin is provided with a lower opening, one end of the first transmission device is communicated with the lower opening, and the other end of the first transmission device is communicated with the pre-mixer.

6. The system of claim 1, wherein the pre-mixing device further comprises a second conveying device and a third conveying device, one end of the second conveying device is communicated with the composting tank, the other end of the second conveying device is communicated with the pre-mixing machine, one end of the third conveying device is communicated with the pre-mixing machine, and the other end of the third conveying device is communicated with the fermentation device.

7. The system of claim 6, wherein the second transmission device has the same transmission speed as the first transmission device.

8. The system for recycling pig manure in a large-scale pig farm according to claim 1, wherein the fermentation device comprises a tank body, a motor, a driving shaft, a stirrer, an aeration pipe and a heat insulation layer, the tank body is provided with an upper opening, a discharge opening and a collection opening, the upper opening is positioned at the top of the tank body, the discharge opening is positioned below the side wall of the tank body, and the collection opening is positioned at the bottom of the tank body.

9. The system of claim 8, wherein the driving shaft is located at the center of the tank, the motor is fixedly mounted at the upper end of the driving shaft, the stirrer is fixedly mounted at the lower end of the driving shaft, the aerator pipe is mounted at the bottom of the side wall of the tank, and the thermal insulation layer covers the outer side of the tank.

10. The system of claim 8, wherein the deodorizing device is a deodorizing tower, and the deodorizing tower is in communication with the collection port.