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Pyrolysis treatment process for domestic sludge

A treatment process and technology for domestic sludge, which is applied in the directions of pyrolysis sludge treatment, dewatering/drying/concentrating sludge treatment, and by-product vaporization, etc. The effect of high energy efficiency, low emissions and low operating costs

Inactive Publication Date: 2015-12-23
ANHUI ZHUOXIN CLEAN ENERGY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current domestic sludge is processed by landfill, and the organic matter in the domestic sludge cannot be decomposed, which is easy to cause secondary pollution

Method used

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  • Pyrolysis treatment process for domestic sludge
  • Pyrolysis treatment process for domestic sludge

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] figure 1 It is a flow chart of domestic sludge pyrolysis treatment process, figure 2 It is a structural schematic diagram of domestic sludge pyrolysis treatment, and the domestic sludge pyrolysis treatment process includes the following steps:

[0022] 1) Turn on the sludge pump 1, the sludge pump 1 sends the sludge into the dehydrator 2, the dehydrator 2 dehydrates the sludge and then enters the elevator 3, and the elevator 3 lifts the dehydrated sludge and enters it into the pyrolysis furnace 4 tops.

[0023] 2) A stirring shaft 5 is arranged in the pyrolysis furnace 4 along its axial direction, and stirring blades 6 are evenly distributed on the stirring shaft 5, and the motor 7 drives the stirring shaft 5 to drive the stirring blades 6 to stir in the pyrolysis furnace 4; the pyrolysis furnace 4 The interior is divided i...

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Abstract

The invention discloses a pyrolysis treatment process for domestic sludge. The process comprises: sludge is fed into a dehydrator through a sludge pump to be dehydrated; the dehydrated sludge is fed into a pyrolyzing furnace; high-temperature flue gas generated by combustion in a hot air producer indirectly enters a destructive distillation section of the pyrolyzing furnace, and then flue gas of the destructive distillation section directly enters a preheating drying section; the flue gas that enters the preheating drying section is subjected to heat dissipation and is dedusted and discharged; the flue gas that enters the destructive distillation section is mixed with dry distillation gas and the mixture enters a high-temperature gas purifier; tar and saturated water coal gas are separated out through a purification system; and sludge carbon is cooled through circulating saturated water coal gas and is discharged. The sludge pyrolytic technique adopted by the process is an effective way for sludge reduction, stabilization, harmless treatment and resource utilization, and has the advantages of high utilization ratio of energy sources, high volume reduction rate and low operating cost; after combustion, the amount of exhaust gas needed to be treated is small; sludge needs not to be buried, and an incomplete incineration process is converted into a gas complete combustion process, so that the discharge amount of sludge carbon solid particulate matters is extremely small, and the process is more environmental-friendly.

Description

technical field [0001] The invention relates to a domestic sludge treatment process, in particular to a domestic sludge pyrolysis treatment process. Background technique [0002] The current domestic sludge is disposed of through landfill, and the organic matter in the domestic sludge cannot be decomposed, which is prone to secondary pollution. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides a more environmentally friendly domestic sludge pyrolysis treatment process that can effectively pyrolyze the organic matter in the domestic sludge. [0004] In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions: [0005] Domestic sludge pyrolysis treatment process, the process includes the following steps: [0006] 1) Turn on the sludge pump, the sludge pump sends the sludge into the dehydrator, the dehydrator dehydrates the sludge and then ente...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/10C02F11/12
CPCY02W10/40
Inventor 单文奎
Owner ANHUI ZHUOXIN CLEAN ENERGY TECH CO LTD
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