CN216674218U

CN216674218U - Feces comprehensive treatment system for pig scale farm

Info

Publication number: CN216674218U
Application number: CN202123095817.6U
Authority: CN
Inventors: 李志雄; 赵智勇; 陈永军; 王兴宇; 邱琳; 李俄然; 赵天永; 丁贤群; 苏建伟
Original assignee: Animal Husbandry Technology Extension Station Of Honghe Hani And Yi Autonomous Prefecture
Current assignee: Animal Husbandry Technology Extension Station Of Honghe Hani And Yi Autonomous Prefecture
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-06-07
Anticipated expiration: 2031-12-10

Abstract

Dirty integrated processing system of live pig scale plant excrement, including dirty ditch of excrement (2), the blowdown ditch (3) of connecting dirty excrement ditch of pig house (1) bottom, order reduction position setting and through collecting pit (4), methane-generating pit or anaerobic fermentation jar (5), equalizing basin (6), sedimentation tank (7), MBR reactor (8), sludge impoundment (9) and clean water basin (10) of tube coupling, methane-generating pit or anaerobic fermentation jar pass through tube coupling desulfurizing tower (11), still have dry wet separating centrifuge (12) through tube coupling on methane-generating pit or anaerobic fermentation jar. The utility model realizes the resource utilization of the breeding excrement, has low investment, easy operation and management, low running cost, economy and practicality and better application prospect.

Description

Feces comprehensive treatment system for pig scale farm

Technical Field

The utility model belongs to the technical field of a pig breeding manure treatment system.

Background

The resource utilization of livestock and poultry breeding feces is a fundamental way for preventing and treating breeding pollution. Promote the dirty resource utilization of beasts and birds cultivation excrement, organic matters such as reducible greenhouse gases such as harmful gas and carbon dioxide degrade COD, NH3-N in the sewage, solve the pollution problem of excrement and urine sewage to the environment, improve the air quality, purify the farming environment, promote the improvement of beasts and birds output and product quality, reduce plant's terminal blow off, reduce the fecal treatment cost. And the breeding manure resources can be changed into valuables, and become renewable fertilizers, energy sources and biological resources, so that the income is increased. The large-scale live pig farm excrement is large in yield, the excrement resource utilization difficulty is large, a large amount of manpower and material resources are needed to be input when the large-scale live pig farm excrement is treated in the prior art, the treatment cost is high, and the treatment effect is not ideal. And the research on the economic and applicable pig manure comprehensive treatment technology is an important subject to be solved urgently at present.

Disclosure of Invention

The utility model aims to effectively solve the problems of large excrement yield and large excrement resource utilization difficulty of large-scale pig-scale farms, and provides an economical and applicable pig excrement comprehensive treatment system which is low in investment, simple in process, easy to operate and circularly cultivated.

The technical scheme adopted by the utility model is as follows:

the comprehensive treatment system for the excrement and the sewage of the pig scale farm comprises an excrement ditch built at the bottom of a pig house, a sewage ditch connected with the excrement ditch, a collecting tank connected with the sewage ditch, a methane tank or an anaerobic fermentation tank connected with the collecting tank through a pipeline, an adjusting tank connected with the methane tank or the anaerobic fermentation tank through a pipeline, a sedimentation tank connected with the adjusting tank through a pipeline, an MBR (membrane bioreactor) connected with the sedimentation tank through a pipeline, and a sludge tank and a clear water tank respectively connected with the MBR through pipelines, wherein the upper part of the methane tank or the anaerobic fermentation tank is provided with a pipeline connected with a desulfurization tower, and the methane tank or the anaerobic fermentation tank is also connected with a dry-wet separator through a pipeline; the bottom of the collecting tank is lower than the bottom of the sewage discharge ditch, the positions of a methane tank or an anaerobic fermentation tank, an adjusting tank, a sedimentation tank, an MBR reactor and a clean water tank behind the collecting tank are sequentially reduced, the feed inlet of a dry-wet separator is lower than the methane residue outlet of the methane tank or the anaerobic fermentation tank, and the liquid inlet of the adjusting tank is lower than the methane liquid outlet of the methane tank or the anaerobic fermentation tank; the water outlet of the MBR is higher than the water inlet of the clean water tank, and the sludge discharge port is higher than the sludge inlet of the sludge tank; feces and sewage discharged from a pigsty are automatically gathered into a collecting pool by virtue of height difference and then automatically enter a methane tank or an anaerobic fermentation tank, methane liquid generated by the methane tank or the anaerobic fermentation tank automatically and sequentially flows into an adjusting pool, a sedimentation tank and an MBR (membrane bioreactor), methane residue automatically enters a dry-wet separator for dry-wet separation, and methane automatically enters a desulfurizing tower; clear water treated by the MBR automatically flows into a clear water tank, and sludge is automatically discharged into a sludge tank; the front end of the sewage discharge ditch is provided with a gate, and pipe valves are respectively arranged on a pipeline connecting the collecting tank and the methane tank or the anaerobic fermentation tank, a pipeline connecting the methane tank or the anaerobic fermentation tank and the regulating tank, and a pipeline connecting the sedimentation tank and the MBR reactor.

Furthermore, the sedimentation tank is provided with two stages of sedimentation tanks, and the position of the next stage of sedimentation tank is lower than that of the previous stage of sedimentation tank.

The piggery sewage treatment system comprises a piggery sewage ditch, a sewage drainage ditch, a collecting pool, an anaerobic fermentation tank, an adjusting pool, a sedimentation pool, an MBR (membrane bioreactor) and a clean water pool, wherein the sewage drainage ditch and the sewage drainage ditch are connected with each other, the collecting pool, the anaerobic fermentation tank, the adjusting pool, the sedimentation pool, the MBR and the clean water pool are sequentially arranged, the height difference is utilized to ensure that the sewage drained from the piggery can automatically converge into the collecting pool by virtue of the height difference, then the sewage automatically enters the anaerobic fermentation tank for anaerobic fermentation, the biogas slurry generated by the anaerobic fermentation automatically flows into the adjusting pool and then enters the sedimentation pool for sedimentation, the supernatant of the sedimentation pool automatically flows into the MBR for treatment, the treated clean water automatically flows into the clean water pool and can be used as production water, and the sludge is automatically drained to the sludge pool. The biogas residues generated by anaerobic fermentation automatically enter a dry-wet separator for dry-wet separation, the separated solid substances are directly used as fertilizers, and the biogas automatically enters a desulfurizing tower and is used as fuel after being desulfurized and purified to reach the standard. The whole system realizes the whole harmless treatment of the excrement, and the recyclable production water and organic fertilizer are obtained through treatment, so that the resource utilization of the cultured excrement is realized, and the system is energy-saving and environment-friendly. Whole processing procedure, the dirty edge system automatic flow of excrement need not establish power equipment in addition and carry the material, and it is laborsaving to save labour, and equipment input is low, can reduce plant running cost by a wide margin, also no longer need adopt the manpower to clear up the excrement and dirt, improves plant staff's the working condition and the environment of plant.

The utility model produces the clean energy biogas without providing external energy by adopting the biogas digester or the anaerobic fermentation tank to carry out anaerobic fermentation treatment on the manure. The anaerobic biological process has low energy consumption, high organic volume load and less residual sludge. And (4) further precipitating the biogas slurry and treating the biogas slurry by using an MBR (membrane bioreactor) to obtain clear water for production.

The method has the advantages of low investment, easy operation and management, low operation cost, economy, practicability and better application prospect.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a top view of fig. 1.

Detailed Description

The present invention will be further illustrated with reference to the following examples.

As shown in fig. 1 and 2, the system for comprehensively treating feces in a pig scale farm comprises a feces ditch 2 constructed at the bottom of a pig house 1, a sewage discharge ditch 3 connected with the feces ditch, a collecting tank 4 connected with the sewage discharge ditch, a methane tank or an anaerobic fermentation tank 5 connected with the collecting tank through a pipeline, an adjusting tank 6 connected with the methane tank or the anaerobic fermentation tank through a pipeline, a sedimentation tank 7 connected with the adjusting tank through a pipeline, an MBR (membrane bioreactor) 8 connected with the sedimentation tank through a pipeline, and a sludge tank 9 and a clean water tank 10 respectively connected with the MBR through pipelines. The upper part of the methane tank or the anaerobic fermentation tank 5 is provided with a pipeline connected with a desulfurizing tower 11, and the methane tank or the anaerobic fermentation tank is also connected with a dry-wet separator 12 through a pipeline. The sedimentation tanks are usually arranged in two stages, and the sedimentation tank 7b of the next stage is positioned lower than the sedimentation tank 7a of the previous stage.

The bottom of the collecting tank 4 is lower than the bottom of the sewage discharge ditch 3, so that the excrement generated by washing the pigsty with water is automatically collected into the collecting tank through the excrement sewage discharge ditch and the sewage discharge ditch. The positions of the methane tank or anaerobic fermentation tank 5, the regulating tank 6, the sedimentation tank 7, the MBR 8 and the clean water tank 10 which are positioned behind the collecting tank are sequentially reduced to form a gradually reduced position fall. The feed inlet of the dry-wet separator 12 is connected with the biogas residue outlet of the biogas digester or the anaerobic fermentation tank 5 through a pipeline, and the feed inlet of the dry-wet separator is lower than the biogas residue outlet of the biogas digester or the anaerobic fermentation tank. The liquid inlet of the adjusting tank 6 is connected with the biogas slurry outlet of the biogas digester or the anaerobic fermentation tank through a pipeline, and the liquid inlet of the adjusting tank is lower than the biogas slurry outlet of the biogas digester or the anaerobic fermentation tank. The water outlet of the MBR 8 is higher than the water inlet of the clean water tank 10, and the sludge discharge port is higher than the sludge inlet of the sludge tank 9. Excrement discharged from the pigsty is automatically gathered into the collecting tank 4 by virtue of the height difference and then automatically enters the methane tank or the anaerobic fermentation tank 5 for anaerobic fermentation, the methane liquid generated by the methane tank or the anaerobic fermentation tank automatically and sequentially flows into the regulating tank 6 and then enters the sedimentation tank 7, supernatant after two-stage sedimentation automatically flows into the MBR 8 for water treatment, the treated clear water automatically flows into the clear water tank 10 for storage and can be used as production water, and sludge is automatically discharged to the sludge tank 9. Biogas residues generated by anaerobic fermentation automatically enter a dry-wet separator 12 for dry-wet separation, separated solid substances are directly used as fertilizers, biogas automatically enters a desulfurizing tower 11, and the biogas is used as clean energy after being desulfurized and purified to reach the standard and can be used for power generation or domestic fuel.

The front end of the sewage discharge ditch 3 is provided with a gate 13, and the excrement automatically flows into the collecting tank only by opening the gate and flushing the pigsty with water. Pipe valves 14 are respectively arranged on a pipeline connecting the collecting tank 4 and the methane tank or the anaerobic fermentation tank 5, a pipeline connecting the methane tank or the anaerobic fermentation tank and the regulating tank 6, and a pipeline connecting the sedimentation tank 7 and the MBR reactor 8, and are respectively used for controlling the feeding and discharging of the methane tank or the anaerobic fermentation tank 5 and the discharging of the MBR reactor 8.

The anaerobic fermentation tank, the desulfurizing tower, the dry-wet separator and the MBR reactor used in the utility model are all the devices in the prior art.

The utility model can improve the environment by effectively controlling the discharge of pollutants, and can obtain clean energy, clean water and organic fertilizer, thereby having good social, economic and ecological benefits.

Claims

1. The system is characterized by comprising a dung sewage ditch (2) built at the bottom of a pig house (1), a sewage discharge ditch (3) connected with the dung sewage ditch, a collecting tank (4) connected with the sewage discharge ditch, a methane tank or an anaerobic fermentation tank (5) connected with the collecting tank through a pipeline, an adjusting tank (6) connected with the methane tank or the anaerobic fermentation tank through a pipeline, a sedimentation tank (7) connected with the adjusting tank through a pipeline, an MBR (membrane bioreactor) (8) connected with the sedimentation tank through a pipeline, and a sludge tank (9) and a clear water tank (10) respectively connected with the MBR through pipelines, wherein the upper part of the methane tank or the anaerobic fermentation tank (5) is provided with a pipeline connected with a desulfurizing tower (11), and the methane tank or the anaerobic fermentation tank is also connected with a dry-wet separator (12) through a pipeline; the bottom of the collecting tank (4) is lower than the bottom of the sewage discharge ditch (3), the positions of a methane tank or an anaerobic fermentation tank (5), an adjusting tank (6), a sedimentation tank (7), an MBR (membrane bioreactor) reactor (8) and a clean water tank (10) behind the collecting tank are sequentially reduced, the feed inlet of a dry-wet separator (12) is lower than the biogas residue outlet of the methane tank or the anaerobic fermentation tank (5), and the liquid inlet of the adjusting tank (6) is lower than the biogas slurry outlet of the methane tank or the anaerobic fermentation tank; the water outlet of the MBR (8) is higher than the water inlet of the clean water tank (10), and the sludge discharge port is higher than the sludge inlet of the sludge tank (9); a gate (13) is arranged at the front end of the sewage discharge ditch (3), and pipe valves (14) are respectively arranged on a pipeline connecting the collection tank (4) and the methane tank or the anaerobic fermentation tank (5), a pipeline connecting the methane tank or the anaerobic fermentation tank and the regulating tank (6), and a pipeline connecting the sedimentation tank (7) and the MBR (8).

2. The system for integrated fecal sewage treatment in a pig scale farm according to claim 1 wherein the sedimentation tank (7) is provided with two stages of sedimentation tanks, the latter stage of sedimentation tank being located lower than the former stage of sedimentation tank.