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Production method of sludge biomass environment-friendly fuel

A production method and biomass technology, which can be applied to biofuels, waste fuels, fuels, etc., can solve the problems of large investment in sludge incineration, unsuitable for large-scale promotion of sludge incineration disposal methods, and high processing costs, so as to solve the energy shortage. , Make up for the sludge treatment cost and the effect of less equipment investment

Active Publication Date: 2012-06-13
深圳市泽源能源股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sludge incineration requires large investment and high treatment costs, and the combustion of organic matter produces highly toxic substances such as dioxins
Therefore, the sludge incineration disposal method is not suitable for large-scale promotion

Method used

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  • Production method of sludge biomass environment-friendly fuel
  • Production method of sludge biomass environment-friendly fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for manufacturing sludge biomass environment-friendly fuel mainly consists of the following steps:

[0030] 1) Sludge pretreatment: Transport the wet sludge with a moisture content of 82% to the pretreatment tank, add water to dilute, mix evenly, add deodorant to remove odor, and then add fungicide to kill pollution microorganisms, pests and pathogens in mud;

[0031] 2) Sludge modification: transport the pretreated sludge to the reaction tank, keep stirring continuously, and add modifiers, sulfur fixers, and heavy metal stabilizers according to the amount, and the time for adding each agent The interval is about 10 minutes. After all the chemicals are added, stir continuously for 1 hour before adding the crushed sawdust. The dosage of sawdust is 40% of the weight of the sludge;

[0032] 3) Deep dehydration of sludge: Use a screw pump to transport the sludge into the filter press for deep dehydration. After deep dehydration, the moisture content of the sludge ...

Embodiment 2

[0036] A method for manufacturing sludge biomass environment-friendly fuel mainly consists of the following steps:

[0037] 1) Sludge pretreatment: Pipeline the sludge with a moisture content of 98% to the pretreatment tank, add deodorant to remove odor, and then add bactericide to kill microorganisms, pests and pathogens in the sludge.

[0038] 2) Sludge modification: transport the pretreated sludge to the reaction tank, keep stirring continuously, and add modifiers, sulfur fixers, and heavy metal stabilizers according to the amount, and the time for adding each agent The interval is about 10 minutes. After all the chemicals are added, stir continuously for 1 hour before adding the crushed shavings, the amount of shavings added is 40% of the weight of the sludge;

[0039] 3) Deep dehydration of sludge: Use a screw pump to transport the sludge into a filter press for deep dehydration. After deep dehydration, the moisture content of the sludge is reduced to below 20%. After t...

Embodiment 3

[0043] A method for manufacturing sludge biomass environment-friendly fuel mainly consists of the following steps:

[0044] 1) Sludge pretreatment: Pipeline the sludge with a moisture content of 93% to the pretreatment tank, add deodorant to remove odor, and then add bactericide to kill microorganisms, pests and pathogens in the sludge.

[0045] 2) Sludge modification: transport the pretreated sludge to the reaction tank, keep stirring continuously, and add modifiers, sulfur fixers, and heavy metal stabilizers according to the amount, and the time for adding each agent The interval is about 10 minutes. After all the chemicals are added, stir continuously for 1 hour before adding the crushed dead branches and leaves. The dosage of dead branches and leaves is 20% of the weight of the sludge;

[0046] 3) Deep dehydration of sludge: Use a screw pump to transport the sludge into a filter press for deep dehydration. After deep dehydration, the moisture content of the sludge is redu...

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Abstract

The invention discloses a production method of a sludge biomass environment-friendly fuel. The method comprises the following steps: 1) sludge pretreatment: conveying sludge to a pretreatment pool, adding deodorant and bactericide and stirring uniformly; 2) sludge modification: conveying pretreated sludge to a reaction tank, adding modifier, sulfur fixing agent and heavy metal stabilizing agent, reacting uniformly and adding crushed biomass; 3) sludge depth dehydration: carrying out depth dehydration on the modified sludge; and 4) sludge drying: fragmenting the sludge cake treated with depth dehydration and drying. Compared with a prior art, the production method of sludge biomass environment-friendly fuel provided by the invention can realize quantitative reduction, harmlessness, stabilization and resource of sludge treatment, effectively solve a problem of secondary pollution of sludge and obtain the biomass environment-friendly fuel; besides, the fuel can substitute coal for combustion in boiler, make up sludge treatment cost as well as effectively solve a social problem of energy shortage.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to a production method of sludge biomass environment-friendly fuel. Background technique [0002] By the end of June 2010, a total of 2,389 urban sewage treatment plants had been built nationwide, with a sewage treatment capacity of 115 million cubic meters per day. At present, there are 1,929 urban sewage treatment projects under construction across the country, with a total design capacity of about 49 million cubic meters per day. With China's urbanization process and increasing environmental protection efforts, sewage treatment plants will grow rapidly for a long period of time. With the rapid improvement of my country's sewage treatment capacity, the amount of sludge has also increased significantly. By the end of 2010, the annual production of wet sludge (with a water content of 80%) in urban sewage treatment plants across the country exceeded 32 million tons. Sludge contains ...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/14C10L5/46
CPCY02E50/30Y02E50/10
Inventor 曾秀仪林计盛
Owner 深圳市泽源能源股份有限公司
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