Sludge dewatering device

By using a spiral blade shaft design and intermittent vacuum pressurization technology, the sludge dewatering device solves the problems of low dewatering rate and clogging of viscous waste, achieving a high-efficiency and low-energy-consumption sludge dewatering effect.

CN224691992UActive Publication Date: 2026-08-28CCCC (KUNMING) CONSTR CO LTD
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Patent Information

Application Number
CN202521326607.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-26
Publication Date
2026-08-28
Estimated Expiration
2035-06-26

AI Technical Summary

Technical Problem

Existing technologies suffer from low dehydration rates, low productivity, and are prone to clogging when processing sticky waste, making it difficult to meet the demand for efficient dehydration.

Method used

The sludge dewatering device adopts a spiral blade shaft design, combined with intermittent vacuuming and pressurization technology. Through the gradual pitch of the spiral blades and the filter cartridge structure, the sludge compression and suction filtration effect is enhanced. With the use of a back pressure plate and a check valve, efficient dewatering and anti-clogging are achieved.

Benefits of technology

The sludge moisture content is reduced from 93% to below 30%, which has the advantages of high efficiency dewatering, anti-clogging, low energy consumption and convenient operation, and is suitable for the treatment of various viscous sludge.

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Abstract

The utility model relates to solid waste treatment technical field, and disclose a kind of sludge dewatering device, comprising: filter cartridge, air cavity, material collecting tank, rack, the inside fixedly connected with filter cartridge of air cavity, the side fixedly connected with material collecting tank of rack, the top of rack is provided with air cavity;Drainage assembly between the setting of barrel and rack, the drainage assembly is used to concentrate the water filtered out to sludge and discharge;Dehydration extrusion assembly is set in the inside of filter cartridge, the side fixedly connected with motor mounting cover of barrel, the inside of motor mounting cover is provided with dehydration extrusion assembly;Discharge assembly is set in the side of barrel, the discharge assembly is used to concentrate the sludge of dehydration and discharge;Exhaust component is set in the top and inside of barrel, the exhaust component is used to carry out exhaust extraction pressure to the inside of barrel, and this sludge dewatering device is through spiral gradual change extrusion, intermittent vacuum pressurization and structure design, and dehydration is efficiently carried out to moisture content 30% or less.
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