Mechanical cold pressing sludge treatment device

The mechanical cold-press sludge treatment device achieves ambient temperature dehydration and drying of sludge and heat recovery, solving the problems of high sludge treatment cost and heat energy waste in the existing technology, and realizing the resource-based disposal and environmentally friendly discharge of sludge.

CN224280042UActive Publication Date: 2026-05-26DALIAN DESHENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521035694.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2026-05-26
Estimated Expiration
2035-05-26

AI Technical Summary

Technical Problem

Existing sludge harmless treatment equipment cannot meet the requirements of a safe, green, low-carbon, and effectively regulated sludge harmless resource utilization system for municipal construction. Moreover, sludge treatment costs are high, heat energy consumption is large, and heat cannot be effectively recovered and utilized.

Method used

The mechanical cold-press sludge treatment device includes a sludge mechanical cold-press deep dewatering system, a dried sludge incineration waste heat recovery system, and a flue gas purification system. The sludge is dewatered and dried at room temperature through mechanical cold-press technology, and the dried sludge is incinerated using a bubble fluidized bed incineration to recover incineration heat for power generation or heating.

Benefits of technology

It achieves ambient temperature dehydration and drying of sludge, reducing treatment costs, and realizes resource-based disposal of sludge through heat recovery, avoiding the release of high-concentration odor and meeting environmental emission requirements.

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Abstract

The utility model discloses a mechanical cold-pressing sludge treatment device which comprises a sludge mechanical cold-pressing deep dehydration system, a dried sludge incineration waste heat recovery system and a flue gas purification system, comprising a wet sludge storage bin, a sludge primary conveying pump, a sludge conditioning machine, a sludge secondary conveying pump, a sludge distributing device, a sludge cold press, a sludge blanking machine, a dry sludge storage bin, a sludge feeder, a sludge incinerator system, a waste heat boiler system, an SNCR in-furnace denitration system, an electrostatic dust collector, a dry deacidification tower, an activated carbon injection system and a bag-type dust collector. The device comprises a lime-gypsum wet-process deacidification tower, a low-temperature SCR denitration system, an induced draft fan and a chimney, the sludge is dewatered and dried at normal temperature through a mechanical cold pressing technology, so that the sludge reaches the condition of self-sustaining combustion, then the dried sludge is incinerated through the bubbling type circulating fluidized bed, heat released by incinerating the sludge is fully recycled for power generation or heat supply, and then sludge resourceful treatment is achieved.
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