Domestic sewage environment-friendly pretreatment equipment and pretreatment method

Abstract

The invention relates to domestic sewage environment-friendly pretreatment equipment and a pretreatment method. The domestic sewage environment-friendly pretreatment equipment comprises a base, fixing frames and a filtering device, the lower end of the base is connected with the existing ground, the fixing frames are installed at the upper end of the base in a bilateral symmetry mode, and the filtering device is installed between the two fixing frames; the filter screens in the filtering device can realize the function of sludge filtration of domestic sewage, and multiple filter screens can realize multi-stage filtration at the same time so that the filtration effect of the equipment on the domestic sewage is enhanced, and the pretreatment effect of the equipment on the domestic sewage is further enhanced; a first motor, a cam and a cylindrical rod in the filtering device are matched to enable the filter screens to move up and down in the filtering process, a flexible brush in the filtering device can clean filtering holes in the filter screens in the up-down moving state in time, and the situation that the filtering holes are blocked due to the fact that sludge is accumulated in the filtering holes is avoided.

Description

technical field [0001] The invention relates to the technical field of domestic sewage, in particular to an environmental protection pretreatment equipment and a pretreatment method for domestic sewage. Background technique [0002] Domestic sewage is the wastewater discharged in the daily life of residents, mainly from residential buildings and public buildings, such as residences, institutions, schools, hospitals, shops, public places and industrial enterprise toilets, etc. The pollutants contained in domestic sewage are mainly organic matter ( Such as protein, carbohydrates, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and intestinal infection viruses, etc.), and the organic matter existing in domestic sewage is extremely unstable, easy to rot and produce stench, bacteria and Pathogens multiply by using organic matter in domestic sewage as nutrition, which can lead to the spread of infectious diseases. Therefore...

AI Technical Summary

Problems solved by technology

[0002] Domestic sewage is the wastewater discharged in the daily life of residents, mainly from residential buildings and public buildings, such as residences, institutions, schools, hospitals, shops, public places and industrial enterprise toilets, etc. The pollutants contained in domestic sewage are mainly organic matter ( Such as protein, carbohydrates, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and intestinal infection viruses, etc.), and the organic matter existing in domestic sewage is extremely unstable, easy to rot and produce stench, bacteria and Pathogens multiply by using organic matter in domestic sewage as nutrition, which can lead to the spread of infectious diseases. Therefore, domestic sewage must be treated before discharge. In order to make the treatment effect of domestic sewage better, domestic sewage is generally pretreated. During the treatment process, the mixed sludge in domestic sewage is generally filtered, but the existing environmental protection pretreatment equipment for domestic sewage often has the following problems in the process of filtering domestic sewage:

[0003] 1. In the process of filtering, the sludge in the filter holes of the filter cannot be cleaned and dredged in time, so that the sludge accumulates in the filter holes of the filter and the filter holes are blocked, and the blockage of the filter is easy to cause sewage It cannot continue to filter and overflows from the upper end of the filter cartridge, which will cause the consequences of filtration failure;

[0004] 2. Most of the existing domestic sewage environmental protection pretreatment equipment basically does not have the function of automatically and regularly cleaning the sludge accumulated on the surface of the filter screen. The thicker sludge accumulated on the surface of the filter screen will also cause the filter screen to be blocked, thus affecting the follow-up of the equipment. filter function

Images