Vacuum electroosmosis sludge drying equipment and method thereof

A technology of sludge drying and electroosmosis, applied in electrochemical sludge treatment, chemical instruments and methods, sludge treatment, etc., can solve the problems of large dosage and low efficiency of sludge drying

Active Publication Date: 2017-06-20
北京海斯顿水处理设备有限公司
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  • Abstract
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Problems solved by technology

Commonly used sludge mechanical dehydration equipment includes: centrifuge, belt filter press dehydrator, etc., but this type of dehydration mechanical equipment only removes the free interstitial water in the sludge, and the sludge moisture after dehydration still has 75% ~85%
The plate and frame fi

Method used

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  • Vacuum electroosmosis sludge drying equipment and method thereof
  • Vacuum electroosmosis sludge drying equipment and method thereof
  • Vacuum electroosmosis sludge drying equipment and method thereof

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Embodiment approach

[0116] Process flow of the present invention such as figure 1 As shown, first merge, compress and lock the filter chamber unit; then enter the mud to form a mud cake; the water bag is filled with water to mechanically squeeze the mud cake; power is applied to carry out electroosmotic dehydration of the mud cake, and at the same time the vacuum Dehydration; then the rubber diaphragm drains water; finally open the relatively airtight filter chamber, drop the material and remove the cake; the filter cloth walking and filter cloth cleaning can be selected according to the filter cloth conditions; proceed to the next dehydration cycle.

[0117] A vacuum electroosmotic sludge drying equipment, such as figure 2 As shown, it includes a support platform 1, a mechanical extrusion device 2, an electro-osmosis dehydration device 3 and a vacuum low-temperature evaporation dehydration device 6; the mechanical extrusion device 2, the electro-osmosis dehydration device 3 and the vacuum low-t...

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Abstract

The invention relates to vacuum electroosmosis sludge drying equipment and a method thereof. The vacuum electroosmosis sludge drying equipment and the method thereof are applied to treating sludge in environment protection industry and achieve sludge dehydration and drying. The vacuum electroosmosis sludge drying equipment comprises a support platform, a mechanical extruding device, an electroosmosis dehydrating device and a vacuum low-temperature evaporating and dehydrating device, wherein the mechanical extruding device, the electroosmosis dehydrating device and the vacuum low-temperature evaporating and dehydrating device are integrated to be an integrated structure and arranged on the support platform. The vacuum electroosmosis sludge drying equipment can mechanically extrude and dehydrate the sludge and perform electroosmosis treatment and vacuum low-temperature evaporation treatment at the same time. The vacuum electroosmosis sludge drying method mainly comprises the steps of utilizing mechanical extrusion among filter chambers to treat sludge into even sludge cake, performing electroosmosis dehydration and vacuumized dehydration at the same, reducing saturated steam pressure of water and accelerating water evaporation in an electroosmosis process. As three technologies are combined, the moisture content of sludge is effectively reduced, and the vacuum electroosmosis sludge drying equipment has the advantages of energy conservation, environmental friendliness, strong generalizability and the like.

Description

technical field [0001] The invention relates to the technical field of sludge dewatering in the environmental protection industry, in particular to vacuum electroosmosis sludge drying equipment and a vacuum electroosmosis sludge drying treatment method. Background technique [0002] At present, the domestic sludge dewatering technology is mainly based on mechanical dewatering. Commonly used sludge mechanical dehydration equipment includes: centrifuge, belt filter press dehydrator, etc., but this type of dehydration mechanical equipment only removes the free interstitial water in the sludge, and the sludge moisture after dehydration still has 75% ~85% or so. The plate and frame filter press has a relatively high dehydration rate, but when using a plate and frame filter press, it also needs to be equipped with a dosing device, and the amount of dosing is also large during operation, and the sludge drying efficiency is low. The moisture content of mud can only reach about 60%...

Claims

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Application Information

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IPC IPC(8): C02F11/12C02F11/00
CPCC02F11/006C02F11/12C02F11/121
Inventor 才建成张锡铎夏洪娟温建伟
Owner 北京海斯顿水处理设备有限公司
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