Synthetic sludge fuel and preparation method thereof

A technology for synthesizing fuel and sludge, which is applied in the field of sludge synthesis as fuel and formula ratio of sludge synthesis fuel, which can solve the problem of unfavorable consumption of water-containing sludge, saving raw coal, high raw coal content of sludge synthesis fuel, and utilization of water-containing sludge Low efficiency and other problems, to achieve the effect of excellent combustion conditions and environmental protection performance, small footprint, and low cost

Inactive Publication Date: 2012-12-19
陕西楷华环保科技有限公司
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Problems solved by technology

[0003] The invention provides a formula ratio of sludge synthetic fuel and its preparation method, which solves the problems of high water content, low utilization rate of hydrous sludge and high utilization rate of raw coal in the prior art. It is not conducive to the large consumption of water-containing sludge and the saving of raw coal, and the obtained sludge synthetic fuel also has technical problems such as large raw coal content, high cost, and poor low-carbon environmental protection performance

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  • Synthetic sludge fuel and preparation method thereof
  • Synthetic sludge fuel and preparation method thereof

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Embodiment Construction

[0022] The mechanism of the present invention is as follows: in the sludge synthetic fuel, the sludge contains a large amount of organic matter, and the volatile matter on a dry basis is as high as 60-70%, which can be used as fuel; but the sludge contains a large amount of water, and the untreated sludge of the sewage treatment plant The water content is generally 80-98%, and the sludge is used as fuel, and the water content needs to be reduced. There are many ways to dehydrate, including drying, drying, mechanical dehydration, and dehydration by adding a dehydrating agent.

[0023] In order to avoid air pollution caused by sludge synthetic fuel, sludge should be deodorized and sterilized, and the treatment methods can be chemical or physical. Chemical method, that is, adding a sludge stabilizer, such as lime, etc.; physical method, including drying and drying, using medium and high temperature of 200°-350° or sunlight for deodorization and sterilization, and drying can use t...

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Abstract

The invention relates to a synthetic sludge fuel and a preparation method thereof. The technical problems of high moisture content of a fuel prepared from water-containing sludge, low utilization rate of the water-containing sludge, high utilization rate of raw coal, disadvantageousness to high consumption of the water-containing sludge and the saving of the raw coal, and high raw coal content, high cost and poor low-carbon environmental performance of the obtained synthetic sludge fuel in the prior art are solved. The synthetic sludge fuel is prepared from 5 to 95 weight percent of sludge with the moisture content of 10 to 98 percent and the balance of combustion improver. Agricultural and forestal residues are effectively utilized, the moisture content of a sludge mixture can be effectively lowered, and the treatment cost of the sludge can be greatly lowered; the sludge fuel can be easily dried; and sulfur can be fixed, a heat value is increased, the utilization rate of the sludge is high, the obtained synthetic sludge fuel is high in heat value, low in cost and high in environmental performance, and has a good combustible working condition, and thus waste is turned into wealth.

Description

technical field [0001] The invention relates to the field of sludge synthetic fuel, in particular to the formula ratio of sludge synthetic fuel and a process for synthesizing sludge produced by urban industrial and domestic sewage treatment plants into fuel. Background technique [0002] The water-containing sludge produced by urban sewage treatment plants can be used as fuel, but it is generally believed that the sludge can be made into synthetic fuel only at a low moisture content, so it is necessary to increase the degree of sludge dehydration, and the process is complicated and the cost is high; On the other hand, in the proportioning and preparation process of the existing sludge synthetic fuel, the utilization rate of water-containing sludge is low, and the utilization rate of raw coal is high, which is not conducive to a large amount of water-containing sludge consumption and saving of raw coal, and the obtained sludge synthetic fuel is also poor. Because of the large...

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Application Information

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IPC IPC(8): C10L5/46
CPCY02E50/30Y02E50/10
Inventor 苏韶华苏武民
Owner 陕西楷华环保科技有限公司
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