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Harmless domestic sludge pyrolysis and carbonization treatment technique

A domestic sludge and carbonization treatment technology, which is applied in the directions of dehydration/drying/concentrated sludge treatment, pyrolysis treatment sludge, etc., can solve the problems of rheological process control difficulties, affecting the continuous production of the treatment system, etc., and achieve construction investment Low, low self-energy, low working condition requirements

Inactive Publication Date: 2010-06-23
SHANGHAI LOTUS ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology

[0008] The gradual change of the physical state of domestic sludge during the treatment process constitutes a difficulty in controlling the rheological process in the system, which affects the continuous production of the treatment system

Method used

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  • Harmless domestic sludge pyrolysis and carbonization treatment technique
  • Harmless domestic sludge pyrolysis and carbonization treatment technique

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Embodiment Construction

[0026] Such as figure 1 Shown: the domestic sludge harmless cracking and carbonization treatment process of the present invention, the specific steps are as follows: the domestic sludge after the simple pre-stage premixing and standing treatment is sent to the special dehydration equipment for pre-dehydration through a special conveying machine; Send the semi-dry sludge after pre-dehydration treatment to the hot air granulation system for forming dehumidification and granulation; send the formed sludge granules to the high-level kettle through the conveying system for re-dehumidification treatment; The domestic sludge is introduced into the pre-reaction tank through the rotary conveyor for pre-reaction; the pre-reacted sludge is then introduced into the pre-cracking gasifier through the conveying controller for pre-fission reaction with specially configured TCS additives; the pre-reaction The material after the thermal fission pre-reaction is introduced into the final cracking...

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Abstract

The invention discloses a harmless domestic sludge pyrolysis and carbonization treatment technique. The technique includes pre-stage domestic sludge premixing and standing treatment, pre-dehydration, shaping, dehumidification, granulation, pre-reaction, pre-pyrolysis reaction, full carbonization reaction and other treatment processes, the completely reacted solid carbonized matter is discharged out of a system by a discharger, and is then collected and stored, the gas generated in sludge pyrolysis is separated by a gas condensation and separation system, the uncondensed flammable gas is guided into a gas holder and stored as heat source for the system, and the condensed gas is centrally treated by a reclaimed water system. The invention realizes purposes such as harmless and zero discharge in the process of production, energy self-sufficiency and low consumption in the process of production, resource and basic energy substance recycling, energy saving, discharge reduction and natural substance recycling, and has the advantages of easy operation, low investment cost, remarkable economic benefit, significant discharge reduction effect for the environment and the like.

Description

technical field [0001] The invention relates to a harmless pyrolysis and carbonization treatment process for domestic sludge, which belongs to the technical field of energy and environmental protection. Background technique [0002] Since the incineration of domestic sludge is an oxidation process, whether it is in an aerobic or oxygen-poor state, the incineration process will produce terrible harmful substances, seriously endangering and destroying human living environment and health. The anaerobic pyrolysis and carbonization technology of sludge effectively blocks the external necessary conditions for the generation of harmful substances, and utilizes the unstable characteristics of organic molecules that will be decomposed by heat. All kinds of organic substances are cracked and carbonized into valuable gas and simple carbon, so that people can use harmless technical treatment methods to achieve and realize the purpose of resource recycling and utilization of domestic slu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/10C02F11/12
Inventor 陈鸽飞孙勇伟
Owner SHANGHAI LOTUS ENVIRONMENTAL PROTECTION TECH
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