Device for separating domestic sewage

Abstract

The invention discloses a device for separating domestic sewage. The device comprises a filter drum, wherein two ends of the filter drum are respectively in an opening shape, a filter net is arranged inside the filter drum, two ends of the filter net are connected with two ends of the filter drum, an airbag squeezing mechanism is arranged inside the filter net, the airbag squeezing mechanism comprises an airbag, an airbag cover plate and an airbag soleplate, one end of the airbag is connected with the airbag cover plate, the airbag cover plate is fixedly connected with one end of the filter drum, the other end of the airbag is connected with the airbag soleplate, the periphery of the airbag soleplate is in slide fit with the inner wall of the filter net, a spring is arranged between the airbag cover plate and the airbag soleplate inside the airbag, the other end of the filter drum is provided with a filter drum bottom cover, and the airbag cover plate is provided with an inlet-exhaust hole. The device is simple in structure, convenient to operate and high in efficiency; both the stretching and retraction processes of the airbag are completed inside the filter net, and the occupied space is small.

Description

technical field [0001] The invention relates to a device for separating domestic sewage. Background technique [0002] Due to the increasingly stringent environmental requirements, the application of mobile sewage treatment vehicles in the field of sewage treatment is becoming more and more extensive. However, the solid-liquid separation devices currently used in sewage treatment vehicles are generally complex in structure and low in efficiency. , or take up a lot of space and are not easy to arrange. For example, septic tank sewage treatment equipment, the utility model of authorized announcement number CN 201473395 U discloses a kind of septic tank sewage treatment equipment, the sewage is separated through the principle of filter screen interception, vacuum suction and centrifugal sedimentation, vacuum suction The method of separating solid and liquid is not thorough, the separated object will still contain more water, the energy consumed by centrifugal sedimentation is ...

AI Technical Summary

Problems solved by technology

[0002] Due to the increasingly stringent environmental requirements, the application of mobile sewage treatment vehicles in the field of sewage treatment is becoming more and more extensive. However, the solid-liquid separation devices currently used in sewage treatment vehicles are generally complex in structure and low in efficiency. , or take up a lot of space and are not easy to arrange

For example, septic tank sewage treatment equipment, the utility model of authorized announcement number CN 201473395 U discloses a kind of septic tank sewage treatment equipment, the sewage is separated through the principle of filter screen interception, vacuum suction and centrifugal sedimentation, vacuum suction The method of separating solid and liquid is not thorough, the separated object will still contain more water, the energy consumed by centrifugal sedimentation is high, and it is not easy to treat a large amount of sewage at the same time; Device, authorized announcement number CN 202805696 U, another example is a sewage and dirt vacuum pumping separation device, authorized announcement number CN 202899291 U, etc., these are not easy to install on the sewage treatment vehicle for mobile operation

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