Water-saving barn blowdown system

Abstract

The invention provides a water-saving barn blowdown system. A barn comprises three layers of blowdown devices, a grooved dung removing ditch, a seamed separation plate and a slatted floor. The grooved dung removing ditch is used for receiving urine of livestock, the seamed separation plate is used for separating dry dung of the livestock from the urine, and the slatted floor is used for leaking the dung to slatted floor of the seamed separation plate; the slatted floor is arranged on the upper portion of the grooved dung removing ditch, and the seamed separation plate is arranged in the middle of the grooved dung removing ditch in a lapping manner; an upper dung scraping mechanism used for scraping the dung leaked to the slatted floor to one side to leak downward to the seamed separation plate is arranged on the slatted floor, a lower dung scraping mechanism used for scraping the dry dung on the seamed partition to a dung outlet is arranged on the slatted floor, a flushing system used for flushing the urine of the livestock is arranged at the bottom of the grooved dung removing ditch, and the upper dung scraping mechanism, the lower dung scraping mechanism and the flushing system are connected with a timing control system. By the arrangement, dung and urine separation technology is realized, and the problems about point and non-point source pollution generated from dung flushing and soaking with water and waste of water resources in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of livestock house sewage treatment, in particular to a water-saving sewage system for livestock houses. Background technique [0002] With the development of the national industrial system, large-scale pig farms have become an important direction for the development of the national pig industry. In recent years, the number of large-scale pig farms in China has increased, and a serious problem caused by this is that Effective cleaning of field manure. [0003] Under the existing technical conditions, there are still many problems as follows: 1. The vast majority of pig farms still use the method of manual manure cleaning. This method first increases labor costs and huge workload; second, people come and go in pig houses Too much will affect the life of pigs and increase the probability of disease in pig farms. ② It adopts the current technology of water flushing manure and water soaking manure. The disadva...

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Problems solved by technology

[0003] Under the existing technical conditions, there are still many problems as follows: 1. The vast majority of pig farms still use the method of manual manure cleaning. This method first increases labor costs and huge workload; second, people come and go in pig houses Too much will affect the life of pigs and increase the probability of disease in pig farms

② It adopts the current technology of water flushing manure and water soaking manure. The disadvantage is that the labor cost is high and the workload is large, and the technology of water flushing manure and water soaking manure often causes a large amount of land and water resources to be polluted; the water consumption is huge , The waste of water resources is serious. On average, each pig consumes 20-25 liters of water per day, and a farm with 10,000 pigs consumes an average of 200-250 m of water per day. 3 ; The manure stays in the house for a long time to ferment, producing a large amount of harmful gas, deteriorating the environment in the house, and the concentration of pollutants is high, making post-treatment more difficult; moreover, it is necessary to build a septic tank, which is costly, complicated, and difficult to operate

③Mechanical cleaning technology, using the existing mechanical manure cleaning technology, the disadvantage is that the separation of feces and urine cannot be achieved, and the feces and urine are easily fermented in the pig house, producing a large amount of harmful substances, which seriously affect the production and life of pigs. The treatment is cumbersome and difficult, and it is impossible to realize automatic manure cleaning. Moreover, the existing technology can only clean the manure in the manure ditch. It is still impossible to realize mechanized cleaning of the manure in the living layer of pigs, and the efficiency is not high. Larger, waste of site resources

④Using the fermentation bed technology, using the fermentation and digestion capacity of the fermentation bed itself to absorb the fecal and urine pollutants produced by the pigs in the house, the disadvantage is that a large amount of harmful gas will be generated during the anaerobic or semi-anaerobic fermentation process in the house, and the surface of the bed body will be damaged by microbial fermentation. Activities and high temperature are not suitable for use in summer pig houses; chemical disinfection drugs and antibiotics cannot be used in the house, otherwise it is easy to damage the growth of microorganisms in the bed; there are many dust and other particles in the air, which can easily cause pigs to get sick, and when the bed is turned over It is difficult to achieve uniform distribution of microorganisms in the bed until the pigs are ready for slaughter, and the existing fermentation bed technology is very prone to problems such as rotten beds and dead beds, and this process has high requirements on the structure of the livestock house, and the operation of the bed body is difficult to control

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