Centrifugal pressure filtration sludge dewatering device

A filter press dehydration and sludge technology, which is applied in the direction of filtration separation, separation method, mobile filter element filter, etc., can solve the problems of high water content after dehydration, low water content after dehydration, and inability to continue production and operation, and achieve water content The effect of low rate and high production efficiency

Inactive Publication Date: 2014-09-03
CHINA JILIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims at the problems of high moisture content after dehydration and incapable of continuous production and operation in the above-mentioned prior art, and provides a sludge centrifugal filter press dewatering device that can operate continuously, has high production efficiency, and has low moisture content after dehydration. device

Method used

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  • Centrifugal pressure filtration sludge dewatering device
  • Centrifugal pressure filtration sludge dewatering device
  • Centrifugal pressure filtration sludge dewatering device

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] As shown in the figure, a sludge centrifugal filter press dewatering device of the present invention includes a motor 1, a drum 2 and a screw press filter 3, and the screw press filter 3 is arranged in the drum 2, and the screw press filter 3 includes The screw shaft 3.1 and the screw press blade 3.2, the screw shaft 3.1 is hollow inside and a sludge feed channel 4 is set inside, and the sludge is sent into the drum 2 through the sludge feed channel 4, and the screw press filter 3 A filter layer 5 and a drainage channel 6 are provided. The drainage channel 6 communicates with the drum 2 through the filter layer 5. The spiral filter blades 3.2 and the drum 2 form a plurality of filter chambers 7. The plurality of The filter press chamber shrinks sequentially along the direction of sludge movement.

[0020] The above technologies constitu...

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Abstract

The invention discloses a centrifugal pressure filtration sludge dewatering device. The centrifugal pressure filtration sludge dewatering device comprises a motor (1), a rotor drum (2) and a spiral pressure filter (3), wherein the spiral pressure filter (3) is arranged inside the rotor drum (2) and comprises a spiral shaft (3.1) and a spiral pressure filtration blade (3.2); the spiral shaft (3.1) is internally hollow and a sludge feeding channel (4) is formed inside the spiral shaft (3.1) and is used for feeding sludge into the rotor drum (2); a filter layer (5) and a drainage channel (6) are arranged on the spiral pressure filter (3); the drainage channel (6) is communicated with the rotor drum (2) through the filter layer (5); the spiral pressure filtration blade (3.2) and the rotor drum form a plurality of pressure filtration cavities (7); the pressure filtration cavities (7) shrink in sequence along the sludge moving direction. Through the centrifugal pressure filtration sludge dewatering device, the moisture content of sludge coming out from a sludge outlet meets the requirements, and the device can operate continuously, is high in production efficiency and ensures low moisture content of dewatered sludge.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to a sludge centrifugal filter press dehydration device for sludge treatment. Background technique [0002] A large amount of sludge will be produced in the process of sewage treatment, and its quality accounts for about 0.3%-0.5% of the treated water. The investment and operation cost of sludge treatment are very huge, and the cost of sludge treatment generally accounts for 10% of the operating cost of sewage treatment plants. 20%-50%, bringing a heavy burden to sewage treatment. According to the relevant national regulations, there are certain requirements for the moisture content of sludge (below 60%). The sludge must be dehydrated so that the moisture content will reach a certain value before subsequent treatment can be carried out. Therefore, dehydration of sludge It is the key process of sewage treatment. [0003] Sludge dehydration methods mainly include natural drying metho...

Claims

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Application Information

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IPC IPC(8): B01D33/27
Inventor 饶宾期曹黎周玲
Owner CHINA JILIANG UNIV
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