Scraping manure machine installation, make full use of the fixed point of pig discharge behavior, realize the clean and clear the class: automatic control system, timely dung, reduce water flushing ring, reduce water consumption and wastewater discharge, realize the waste water and solid liquid separation, reduce main pollutants such as COD concentration of sewage, feces clear in time, the pig growth environment, reduce the prevention and control. In the pressure of the shell, avoid caused through the feces mix hidden trouble of disease transmission tool.