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Sludge incineration method

A sludge incineration and sludge technology, applied in the combustion method, incinerator, combustion type and other directions, can solve the problems of complex equipment, large investment, expensive operation cost, etc., and achieve the effect of low cost

Active Publication Date: 2013-08-21
杭州国泰环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the dry incineration method commonly used in China has a large investment, complicated equipment, and expensive operating costs.

Method used

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  • Sludge incineration method

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Experimental program
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Effect test

Embodiment 1

[0029] After crushing the dry sludge into lump dry sludge with a diameter of 4-6cm, the sludge is transported from the sludge silo 1 to the sludge distributor 3 through the screw conveyor 2, and the sludge is distributed by the incinerator 4 Top evenly into incinerator 4.

[0030] The sludge moves from top to bottom in the incinerator 4, and under the action of bottom-up high-temperature flue gas flow and radiant heat, it completes the processes of heating, drying, pyrolysis, and combustion in sequence.

[0031] Start the grate machine 44 at the bottom of the incinerator 4 to make the mud layer move slowly, and the airflow produced by the high-pressure blower 11 disturbs the sludge from the bottom of the incinerator 4 and constantly renews the combustion surface, while controlling the residence time of the sludge in the furnace to exceed 1 hour. The sludge is fully burned, and the dry sludge is burnt with the good cooperation of the primary air inlet system.

[0032] The burn...

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Abstract

The invention relates to a sludge incineration method which comprises the following steps: incineration, secondary incineration, incinerator bottom blast, cooling, ash discharging, waste-heat utilization, desulfuration and dedusting treatment. According to the sludge incineration method, sludge burns off completely through the methods of high temperature and multiple incineration, and germs, causative agents and the like in the sludge are killed. The waste heat produced in incineration can be further used for producing steam, and the ash after incineration can be used for making building materials such as bricks and cement. Therefore, the sludge incineration method provides an effective path for follow-up resource utilization of the sludge.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a sludge incineration method. Background technique [0002] Sludge contains a large number of bacteria, fungi, protozoa, micro-metazoans, algae, viruses and other microorganisms, as well as a large amount of toxic and harmful organic residues, which are easy to stink and pollute the environment during storage and transportation, and are harmful to the human body. harmful. [0003] With the popularization of sewage treatment facilities in our country, the improvement of treatment rate and the deepening of treatment degree, the amount of sludge will increase rapidly, and it is very important to effectively treat and dispose of sludge. Through the treatment and disposal of sludge, the reduction, stabilization, harmlessness and recycling of sludge can be realized, and secondary pollution can be prevented. At present, sludge treatment methods generally include: sanitary lan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/00
Inventor 陈柏校俞伟敏夏玉坤俞洪春李林
Owner 杭州国泰环保科技股份有限公司
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