Efficient electroosmotic sludge dehydrator

A sludge dewatering machine and sludge dehydration technology, applied in the direction of electrochemical sludge treatment, water/sludge/sewage treatment, sludge treatment, etc., can solve the problems of lack of dehydration efficiency and slow promotion, and achieve easy promotion, Effect of improving dehydration efficiency

Active Publication Date: 2017-05-10
浙江科力尔环保设备股份有限公司
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AI Technical Summary

Problems solved by technology

Compared with the traditional dehydrator, this dehydrator can give full play to the performance of electroosmosis, and directly use the moving extrusion plate and the moving mesh belt to squeeze the sludge, and both the extrusion plate and the moving mesh plate are connected to the power supply. Under the action of electrophoresis, the w

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  • Efficient electroosmotic sludge dehydrator
  • Efficient electroosmotic sludge dehydrator
  • Efficient electroosmotic sludge dehydrator

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Experimental program
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Embodiment Construction

[0033]The inventors of the present applicant have unexpectedly discovered in a large number of studies that when the sludge first enters the wedge-shaped extrusion zone, it is relatively loose, and there will be some air in the middle. It will be dehydrated. Only when the sludge is squeezed to a certain degree of compactness, the current increases, and the sludge will be dehydrated. The wedge angle of the wedge-shaped extrusion zone is generally relatively small, and the sludge has to enter a rather long section. It takes only a certain distance to squeeze to a certain degree of compactness, which is a waste of time. If the sludge can be squeezed quickly when it first enters the wedge-shaped extrusion zone, the sludge can reach a certain degree of compactness in a short time. Increase the length of the effective extrusion zone, thereby improving the dehydration efficiency, and the test proves that it can be increased by about 30%. Based on this principle, the original sludge d...

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Abstract

The invention relates to an efficient electroosmotic sludge dehydrator, comprising a frame, a sludge dehydration unit, a drive mechanism that powers the sludge dehydration unit, and a power source; the sludge dehydration unit comprises a plurality of moving mesh plates and extrusion plates movably arranged at lower and upper portions of the frame respectively along set trajectories, both the moving mesh plates and the extrusion plates are made of conductive material and are communicated with a cathode and anode of the power source respectively, a horizontally extended sludge extrusion passage is formed between the extrusion plates and the moving mesh plates, and the sludge extrusion passage narrows gradually from its inlet end to its outlet end and forms a quick extrusion area close to its inlet end; the narrowing rate of the sludge extrusion passage corresponding to the quick extrusion area is greater than that of the other area of the sludge extrusion passage. Compared with a dehydrator of ZL201310285709.6, the efficient electroosmotic sludge dehydrator has dehydration efficiency increased by about 30% with the dehydration effect unchanged, and is easier to popularize.

Description

technical field [0001] The invention relates to a sludge dewatering device, in particular to an electroosmotic sludge dewatering machine. Background technique [0002] With the development of social economy and the acceleration of urbanization, the amount of urban sewage treatment plants and the accompanying sludge has increased rapidly. According to relevant materials, in 2010, the sludge produced by my country's sewage treatment plants reached 300 million tons. Because sludge contains a large amount of cell water, at present, almost all the existing equipment and technology of sewage treatment plants can only reduce the moisture content of sludge to about 80%. More than 50% will cost a lot of money, so almost all sewage treatment plants in our country often can only use sludge as landfill and pile up, which has caused serious environmental pollution problems. Using the principle of electro-osmotic dehydration to treat sludge, it can be seen from the experimental data tha...

Claims

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Application Information

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IPC IPC(8): C02F11/12C02F11/00
CPCC02F11/006C02F11/12Y02W10/37
Inventor 黄海
Owner 浙江科力尔环保设备股份有限公司
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