A vacuum electroosmosis sludge drying equipment and method thereof

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%...

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