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Sludge direct drying and incineration integrated system and working method thereof

A technology of sludge drying and working method, applied in chemical instruments and methods, combustion methods, sludge treatment, etc., can solve the problem of consuming large resources, improve combustion efficiency, reduce heat exchange, and inhibit the production of NOx Effect

Pending Publication Date: 2021-08-24
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention provides a sludge direct drying and incineration integrated system and its working method, which solves the problem that the current sludge drying and incineration technology needs to consume a large amount of resources

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  • Sludge direct drying and incineration integrated system and working method thereof

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as figure 1 As shown, the present invention provides an integrated system for sludge direct drying and incineration, including a sludge fermentation device, a combustion device, a sludge drying device 8 and a tail gas treatment device 9, and the sludge fermentation device ferments a part of the sludge Biogas is generated, another part of the sludge is sent to the sludge drying device 8 for drying, the biogas generated by the sludge fermentation device is input into the combustion device for combustion, and the high-temperature flue gas generated by the combustion device enters the sludge drying device 8 to dry the sewage. Sludge, the sludge dried by the sludge drying device 8 is sent to the combustion device for combustion as fuel, and the flue gas after the combustion of the sludge drying device 8 is desulfurized, denitrified and d...

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Abstract

The invention discloses a sludge direct drying and incineration integrated system and a working method thereof. The sludge direct drying and incineration integrated system comprises a sludge pool, a biogas digester and a sludge drying device, a wet sludge outlet of the sludge pool is connected with the biogas digester, a biogas outlet of the biogas digester is connected with a combustion device, and a high-temperature smoke outlet of the combustion device is connected with the sludge drying device; the sludge drying device is also connected with a wet sludge outlet of the sludge tank and a sludge outlet of the methane tank, and a dried sludge outlet of the sludge drying device is connected with a dried sludge inlet of the combustion device. Self-heat-supply drying is achieved, additional heat supply fuel is not needed, self-heat-supply drying circulation is achieved while sludge is treated, a large number of resources are saved, the cost is greatly reduced, and the system is suitable for industrial production and popularization.

Description

technical field [0001] The invention belongs to the technical field of sludge treatment, in particular to a sludge direct drying and incineration integrated system and a working method thereof. Background technique [0002] Sludge contains a large amount of organic matter and nutrients, as well as heavy metals, pathogenic bacteria, virus microorganisms and a large amount of toxic organic matter. If it is not disposed of properly, it will cause serious secondary pollution to the environment. Commonly used sludge disposal methods mainly include landfill, incineration and land utilization, etc. Among them, sludge incineration can be divided into direct incineration and mixed incineration, which has the advantages of volume reduction, weight reduction and harmlessness, and can make full use of sludge. The chemical energy of organic matter can kill various pathogens and germs, and decompose most of the toxic organic matter, which has broad development prospects. [0003] At pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02C02F11/13C02F11/122F23G7/00
CPCC02F11/02C02F11/13C02F11/122F23G7/001
Inventor 王云刚刘阳刘羽飞梁志远邵怀爽赵钦新
Owner XI AN JIAOTONG UNIV
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