A kind of sludge-biomass briquette fuel and its preparation method

A briquette fuel and biomass technology, applied in the direction of biofuel, waste fuel, fuel, etc., can solve problems such as burner chlorine corrosion, achieve the effects of reducing chlorine corrosion, reducing a large amount of pollution, and convenient operation

Active Publication Date: 2018-08-03
江苏易达检测科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Purpose of the invention: In view of the deficiencies in the above-mentioned prior art, the present invention provides a method for effective disposal and resource utilization of excess sludge, which solves the problems of coking and chlorine corrosion of the burner during the high-temperature combustion of biomass fuel, and improves The combustion efficiency of biomass reduces dioxin emissions, making surplus straw a new type of fuel for environmental protection and energy saving

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, squeeze the dewatered municipal sewage sludge (solid content 40-60%) to obtain granular sludge (particle size 2-4cm), then add the granular sludge to the crushed corn stalks, and stir while adding (30-50 revolutions / min), make the mass ratio of sludge and straw powder to 2:10, mix evenly and send it to the forming machine to be pressed into shaped particles (diameter 1.2cm, length 3-5cm, density 1.2-1.4 t / m 3 ), get product 1.

Embodiment 2

[0023] First, squeeze the dewatered municipal sewage sludge (solid content 40-60%) to obtain granular sludge (particle size 2-4cm), then add the granular sludge to the crushed corn stalks, and stir while adding (30-50 revolutions / min), make the mass ratio of sludge and straw powder to 4:10, mix evenly and send it to the forming machine to be pressed into shaped particles (diameter 1.2cm, length 3-5cm, density 1.2-1.4 t / m 3 ), get product 2.

Embodiment 3

[0025] First, squeeze the dewatered municipal sewage sludge (solid content 40-60%) to obtain granular sludge (particle size 2-4cm), then add the granular sludge to the crushed corn stalks, and stir while adding (30-50 revolutions / min), make the mass ratio of sludge and straw powder to 10:10, mix evenly and send it to the forming machine to be pressed into shaped particles (diameter 1.2cm, length 3-5cm, density 1.2-1.4 t / m 3 ), get product 3.

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PUM

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Abstract

The invention discloses a sludge-biomass formed fuel which is prepared from sludge particles and straw powder particles in a mass ratio of (2-10):10. The preparation method comprises the following steps: mixing the sludge particles with the particle size of 2-4cm obtained by sludge extrusion with the straw powder particles in a mass ratio of (2-10):10, and finally, sending the mixture into a forming machine to perform compaction, thereby obtaining the sludge-biomass formed fuel. The sludge-biomass formed fuel can substitute the original biomass formed fuel. The organic components in the fuel can be combusted, thereby fully utilizing the heat value and killing pathogenic microorganisms in the sludge. As for the sludge attached to the straw powder particles, the straw powder particles can not be easily blown up on the hearth and can be sufficiently combusted, thereby reducing the coking, relieving the chlorine corrosion and reducing the abundant pollution.

Description

Technical field [0001] The invention relates to environmental protection technology and energy saving technology, in particular to a sludge-biomass briquette fuel and a preparation method thereof. Background technique [0002] Activated sludge method is a commonly used domestic sewage treatment method. It can remove soluble and colloidal biodegradable organic matter, suspended solids and other substances that can be adsorbed by activated sludge from sewage, and it can also remove part of it. Phosphorus and nitrogen. [0003] The method is to continuously mix and cultivate sewage and various microbial groups under artificial oxygenation conditions to form activated sludge. Use the biological aggregation, adsorption and oxidation of activated sludge to decompose and remove organic pollutants in sewage. Then the sludge is separated from the water, most of the sludge is returned to the aeration tank, and the excess is discharged from the activated sludge system. Therefore, it is ine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/44C10L5/46
CPCY02E50/10Y02E50/30
Inventor 陈爱辉丁成杨百忍陈天明
Owner 江苏易达检测科技有限公司
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