Device for integrating extrusion and dehydration

Abstract

A device for integrating extrusion and dehydration relates to the technical field of urban sewage treatment, and mainly comprises a reactor part, an extrusion and dehydration part and an outer housing part; a reactor inlet is formed in the lower part of a reactor, and a reactor outlet is formed in the upper part of the reactor; the reactor outlet is communicated with a filtering frame space in an outer housing through a pipeline from the end part of the outer housing; the reactor is provided with a flocculating agent feeding port; a screw shaft penetrates through two ends parts of the outer housing; one end part of the screw shaft is connected with a screw shaft speed reducer motor; the screw shaft is integrally sleeved with a cone; a helical blade is arranged outside the cone, and is a variable-pitch helical blade of which the screw pitch becomes smaller gradually; a hairbrush is arranged on the edge of the helical blade; a filtering frame surrounds the helical blade; a spray system driven by a flusher motor is arranged on the outer side of the filtering frame; the outer housing is inclined; a discharging port is formed in the end part of a front supporting leg of the outer housing; and a filtrate outlet is formed in the lower side of the end part of a rear supporting leg of the outer housing.

Description

technical field [0001] The invention relates to the technical field of urban sewage treatment, in particular to a device for separating solids in urban sewage through flocculation, extrusion and dehydration. Background technique [0002] Municipal wastewater, industrial wastewater, silt and sludge, human and animal feces and other urban sewage have complex components. In addition to water, the sewage also contains a large amount of suspended, floating, and precipitated solid substances. It will be difficult to proceed without separation. One-step urban sewage treatment process, direct discharge will pollute the environment. [0003] The treatment process in the prior art is to add a flocculant into the sewage to agglomerate the suspended particles contained therein into larger aggregates, and effectively separate solids and liquids by means of mechanical filtration and extrusion. Application number: 201020233112.9 "Concentration, flocculation and dehydration integrated mach...

AI Technical Summary

Problems solved by technology

In this design, after the sewage is flocculated, it is first filtered through the filter frame, and then input into the screw compressor to compress and dehydrate the solids. Low, the number of equipment is large, the compression efficiency is low, the overall sewage treatment capacity is poor, and the processing capacity cannot meet the working needs of larger treatment stations. If multiple equipments are used to work in parallel, it will occupy more equipment land and increase energy consumption

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