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System and method for harmlessly treating sludge

A flue gas treatment system and sludge technology, applied in the direction of combustion methods, incinerators, lighting and heating equipment, etc., can solve the problems of high investment and operation costs, complex sludge treatment system, etc., achieve good flue gas emission indicators, improve Waste heat utilization rate, VOC removal effect

Pending Publication Date: 2021-11-02
WUXI XUELANG ENVIRONMENTAL TECH CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0004] In order to solve the problems of complex sludge treatment systems and high investment and operation costs in the prior art, the present invention provides a system for harmless disposal of sludge. The system has a simple structure and low investment, operation and maintenance costs, and is suitable for widespread promotion use

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  • System and method for harmlessly treating sludge
  • System and method for harmlessly treating sludge

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Embodiment Construction

[0043] A system for harmless disposal of sludge according to the present invention, which includes a sludge storage bin 1, a sludge dryer 2, an integrated incinerator 4, and a flue gas treatment system; the integrated incinerator 4 and the flue gas treatment system pass through The heat exchange equipment is connected; the heat exchange equipment includes the first GGH (Gas Gas Heater) heat exchanger 5 and the GAH (Gas air heater) heat exchanger 6 connected to each other, the first GGH heat exchanger 5 and the GAH heat exchanger 6 are all It is based on the flue gas / flue gas heat exchange principle to realize the reuse of thermal energy. Wet sludge from municipal sludge system, general industrial sludge system, hazardous waste industrial sludge system, and other sludge systems can be harmlessly treated by this patented technical solution.

[0044] Such as figure 1As shown, the integrated incinerator 4 is provided with interconnected combustion chamber 4-4, mixing chamber 4-3,...

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Abstract

The invention provides a system for harmlessly treating sludge, which is simple in structure, low in investment, operation and maintenance cost and suitable for wide popularization and application. High-temperature flue gas exhausted by an integrated incinerator is directly used as a drying heat source of a sludge drying machine, damp and hot peculiar smell waste gas generated by sludge drying of the sludge drying machine is directly fed into the integrated incinerator to be subjected to high-temperature incineration, to-be-treated sludge is subjected to incineration treatment in a primary incineration section, odor is subjected to secondary combustion in a secondary incineration section, deodorization processing is conducted, and the integrated incinerator is provided with a secondary incineration section, namely the primary incineration section and the secondary incineration section, so that the retention time of waste gas generated by combustion in a high-temperature incineration state is ensured. Meanwhile, the invention also discloses a method for harmlessly treating the sludge.

Description

technical field [0001] The invention relates to the technical field of solid waste incineration treatment, in particular to a system and method for harmless disposal of sludge. Background technique [0002] Sludge is the solid sediment produced by water and sewage treatment processes. Sludge is a thick substance between liquid and solid. Its main characteristics are high water content (up to 99%), high organic content, easy to rot and smell, and fine particles, small specific gravity, and gelatinous liquid state. [0003] The sludge treatment process commonly used in the prior art is: use steam to dry the sludge, send the dried sludge to the sludge incinerator for incineration to generate hot flue gas, and generate steam by recovering the waste heat of the hot flue gas. It is a way to realize thermal energy recycling in sludge drying. The sludge treatment system includes: boilers, steam dryers, steam pipeline valves and many other pressurized equipment. The system is comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/00F23G7/06F23G5/027F23G5/14F23G5/44F23G5/46F23J15/02F23J15/06
CPCF23G7/001F23G7/06F23G5/027F23G5/14F23G5/44F23G5/46F23J15/025F23J15/06F23G2209/12
Inventor 龚滨周赞殷波王登生孙伟伟
Owner WUXI XUELANG ENVIRONMENTAL TECH CO LTD
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