Sludge coal water slurry and process for making same

A production process and sludge water technology, which is applied in the field of boiler fuel, can solve the problems of affecting urban construction, insufficient combustion, and excessive residual slag, and achieve the effects of less energy consumption, alleviation of coal use, and harm reduction.

Inactive Publication Date: 2005-03-16
青岛海众元亨热能有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of the existing urban water treatment sludge piles that pollute the environment, affect urban construction, and use a large amount of combustibles to ignite after dehydration and drying, insufficient combustion, and more residual residues, and provide a Sludge coal-water slurry burned by special boiler for supplying coal-water slurry and its production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The weight proportion parts of raw material component used in the present invention is:

[0019] 3-6 parts of city water treatment sludge with water content of 70-85%

[0020] 7-9 parts of finished coal water slurry containing 30-40% water

[0021] 0.05-0.1 part of any one of the finished naphthalenesulfonic acid formaldehyde condensate, humate and lignosulfonate.

[0022] The production process of the above sludge coal-water slurry is: condensation of urban water treatment sludge with a water content of 70-85% and finished product coal-water slurry with a water content of 30-40%, and naphthalenesulfonic acid formaldehyde which can increase its fluidity and stability Any one of the finished products, humate, and lignosulfonate, is added to the existing cylindrical mill for grinding and mixing, and filtered through a filter, and the particles with a particle size of less than 0.5mm are sent to the sludge coal-water slurry Finished product storage tank, when the particl...

Embodiment 2

[0024] The weight ratio parts of the best raw material component of the present invention is:

[0025] 5 parts of municipal water treatment sludge with water content of 70-85%

[0026] 8 parts of finished coal water slurry with water content of 30-40%

[0027] 0.08 parts of any one of the finished naphthalenesulfonic acid formaldehyde condensate, humate and lignosulfonate.

[0028] The manufacturing process of the above-mentioned sludge coal-water slurry is the same as that in Embodiment 1.

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PUM

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Abstract

The invention discloses a sludge coal water slurry and process for making same which comprises, charging urban water treatment sludge, end product coal water slurry and dispersing agent into tubular grinding machine for grinding and mixing, filtering with a filter, loading sludge slurries with grain size smaller than 0.5mm to special-purpose slurry boiler for combustion.

Description

technical field [0001] The invention belongs to boiler fuel, in particular to a sludge coal-water slurry fuel which can be added into coal-water slurry for combustion in a coal-water slurry boiler and a process for making the fuel. Background technique [0002] In recent years, the rapid economic development has led to the acceleration of the urbanization process, and the amount of urban sewage treatment is also increasing. The amount of sludge produced after sewage treatment increases accordingly. Taking a small and medium-sized city as an example, a sewage treatment plant produces The amount of activated sludge in China reaches more than 100 tons per day, and this amount is still growing, and the amount of water treatment sludge in big cities is even more. Due to the rapid increase of urban sludge and it cannot be disposed of, it has brought serious pollution to the urban environment and set up great obstacles to urban construction. Water treatment sludge has become one of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32
Inventor 姜贵利
Owner 青岛海众元亨热能有限公司
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