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Sewage sludge reduction and dehydration method

A sewage sludge and reduction technology, applied in chemical instruments and methods, sludge treatment, dewatering/drying/concentrating sludge treatment, etc., can solve the problems of high energy consumption, low efficiency and high cost, and reduce product Energy consumption, improve power use effect, improve work efficiency effect

Inactive Publication Date: 2018-10-23
CHINA JILIANG UNIV
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  • Application Information

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Problems solved by technology

[0006] In view of this, the present invention aims at the technical problems of high energy consumption, high cost, and low efficiency in the above-mentioned prior art, and provides a method for reducing and dehydrating sewage sludge with low energy consumption, high efficiency, and low cost. And can accurately treat the sludge to the target moisture content

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] The present invention covers any alternatives, modifications, equivalent methods and schemes made on the spirit and scope of the present invention. In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, for the sake of illustration, the drawings of the present invention are not completely drawn according to the actual scale, and are described here. Wherein, descriptions such as "inner", "outer", "left", and "right" are relative terms, and these terms are introduced only for the purpose of description, and do not constitute a limitation to the claims. In addition, expressions about "devi...

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Abstract

The invention discloses a sewage sludge reduction dewatering method which is based on a reduction dewaterer. The reduction dewaterer comprises at least one dewatering module, wherein each dewatering module comprises a two-way cylinder (1) and two symmetrically arranged dewatering units (2); each dewatering unit (2) comprises a dewatering shell (2.1), a supporting plate (2.2) and an extrusion plate (2.3); the supporting plate (2.2) is positioned on the outer side of the dewatering shell (2.1); the extrusion plate (2.3) is positioned on the inner side of the dewatering shell (2.1); the dewatering shell (2.1) is provided with a feed port (2.4); the two-way cylinder (1) is provided with two piston rods (1.1); and the two piston rods (1.1) are respectively connected with the extrusion plates (2.3) of the two dewatering units (2). The feed dewatering and extrusion dewatering are carried out at the same time, thereby enhancing the work efficiency. Meanwhile, the feed pressure is ingeniously used for dewatering in the extrusion dewatering process, thereby enhancing the power use effect.

Description

technical field [0001] The invention relates to the field of sewage sludge treatment, in particular to a method for reducing and dehydrating sewage sludge. Background technique [0002] Sludge is the product of sewage treatment. At present, a large amount of sludge produced after sewage treatment needs further treatment, and dehydration is an important part of sludge treatment. Its purpose is to remove most of the water in the sludge and make the solids highly enriched. , significantly reduce the volume of sludge to save the cost of sludge treatment, increase the calorific value of sludge and save energy, which is of great significance for the reduction and subsequent disposal of sludge. Mechanical dehydration is the most effective dehydration method with the least energy consumption. Currently, deep dehydration of sludge by conditioning and mechanical methods can generally make the moisture content reach 80%-60%. [0003] Mechanical dehydration methods and equipment mainly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/12
CPCC02F11/122C02F2303/06
Inventor 饶宾期刘晓冬赵子恺万延见卢锡龙
Owner CHINA JILIANG UNIV
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