Backwashing solid-liquid separation device

Abstract

The invention discloses a backwashing solid-liquid separation device which comprises two tempered glass cylinders, a filter screen and two cleaning eye lids; each of the tempered glass cylinders comprises a large end, a small end and an intermediate transition section, a flange is arranged at the end part of each of the large end and the small end, cleaning eyes are formed in the upper part of thelarge end, bolt holes are formed in four corners on the outer edge of each of the cleaning eyes, and the cleaning eye lids are fixed on the cleaning eyes through bolts; the filter screen is made of atough and corrosion-resistant soft material, a certain number and size of holes is formed in the filter screen, and the periphery is fixed by flange pieces; the filter screen is arranged between thelarge ends of the two tempered glass cylinders, and the two tempered glass cylinders are connected into a whole through the flanges; one end of the tempered glass cylinder connected into a whole is connected with a sewage inlet pipe and a drainage pipe through tee joints, a water inlet one-way valve is arranged on the sewage inlet pipe, and a drainage one-way valve is arranged on the drainage pipe, and the other end of the tempered glass cylinder connected into a whole is connected with a sewage pump. The backwashing solid-liquid separation device disclosed by the invention is used for underground space sewage collection and discharge, is simple in structure, convenient to mount and overhaul and stronger in practicability.

Description

technical field [0001] The invention relates to a solid-liquid separation device for backwashing, which belongs to the field of sewage collection and discharge. Background technique [0002] With the development of the city, the urban underground space is also constantly being developed and utilized. Subways, underground shopping malls, underground offices, underground restaurants and underground car washes are becoming more and more common. These spaces all face a common problem: the discharge of sewage in underground spaces. , the discharge of sewage in urban underground spaces requires the use of sewage collection and discharge equipment to lift and discharge sewage containing solid debris to the municipal pipe network. Existing sewage collection and discharge equipment generally adopt sewage pump devices, and sundries in the sewage will easily cause blockage or damage of the sewage pump after entering the sewage pump, which greatly reduces the use effect and service life...

AI Technical Summary

Problems solved by technology

Existing sewage collection and discharge equipment generally adopt sewage pump devices, and debris in the sewage will easily cause blockage or damage of the sewage pump after entering the sewage pump, which greatly reduces the use effect and service life of the sewage pump

The Chinese invention patent "A Solid-Liquid Separation Backwashing Device (Publication No. CN 204910938U)" discloses a solid-liquid separation backwashing device. In this patent, there are filter screens and backwashing nets at the same time. Due to the existence of backwashing nets, It affects the flushing effect of the filter screen, and at the same time, it is easy to accumulate debris in the cavity between the backwash screen and the filter screen, and the connection between the backwash screen and the cylinder is easy to form a flushing dead angle

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