Efficient and deep reduction treatment method for sewage sludge

A technology of sewage sludge and treatment method, which is applied in the directions of sludge treatment, dehydration/drying/thickened sludge treatment, water/sludge/sewage treatment, etc., which can solve the problems of high energy consumption, high cost and low efficiency, Achieve the effects of reducing product energy consumption, improving power use effect, and improving work efficiency

Inactive Publication Date: 2016-07-27
CHINA JILIANG UNIV
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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 high

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  • Efficient and deep reduction treatment method for sewage sludge
  • Efficient and deep reduction treatment method for sewage sludge
  • Efficient and deep reduction treatment method for sewage sludge

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

[0025] The present invention covers any alternatives, modifications, equivalent methods and solutions made on the essence and scope of the present invention. In order for the public to have a thorough understanding of the present invention, specific details are described in the following preferred embodiments of the present invention, and 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 drawn exactly according to the actual scale, and are described here. Among them, the descriptions of "inner", "outer", "left", "right", etc. are all relative terms, and the introduction of these terms is only required for description, and does not constitute a limitation on the claims. In addition, the terms "device" and "mechani...

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Abstract

The invention discloses an efficient and deep reduction treatment method for sewage sludge. The method is based on a reduction treatment device, the reduction treatment device comprises at least one dehydration module, each dehydration module comprises a bidirectional oil cylinder (1) and two symmetric dehydration units (2), and each dehydration unit (2) comprises a dehydration barrel (2.1), a supporting plate (2.2) and an extruding plate (2.3). The supporting plates (2.2) are located on the outer sides of the dehydration barrels (2.1), the extruding plates (2.3) are located on the inner sides of the dehydration barrels (2.1), and feeding ports (2.4) are formed in the dehydration barrels (2.1). Each bidirectional oil cylinder (1) is provided with two piston rods (1.1) which are connected with the extruding plates of two corresponding dehydration units (2) respectively. According to the method, feeding dehydration and squeezing dehydration are carried out at the same time, so that work efficiency is improved; meanwhile, the pressure of fed materials is ingeniously utilized for dehydration in the squeezing dehydration process, and therefore the power use effect is improved.

Description

technical field [0001] The invention relates to the field of sewage sludge treatment, in particular to a high-efficiency deep reduction treatment method for 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 ...

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Application Information

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IPC IPC(8): C02F11/12
CPCC02F11/121C02F2303/06
Inventor 饶宾期万延见卢锡龙赵子恺刘晓冬
Owner CHINA JILIANG UNIV
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