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Honeycomb bitumite briquet for smoke-less combustion in right direction

A smokeless combustion, honeycomb technology, applied in fuel, solid fuel, petroleum industry, etc., can solve problems such as difficulty in coal exchange, and achieve the effect of convenient use, high calorific value, and improved calorific value

Inactive Publication Date: 2002-02-20
TSINGHUA UNIV
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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 aim at the deficiencies and defects of the prior art, and provide a kind of normal burning honeycomb bituminous coal anthracite combustion briquette, so that it can carry out normal combustion on civil briquette coal stoves like anthracite briquette, and overcome the backward combustion Bituminous coal briquette has the disadvantage of difficulty in burning and changing coal, and has the advantages of convenient use and high calorific value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Using the above process steps, take 50% of bituminous coal, 1% of starch, 1% of clay, 30% of potassium permanganate, 10% of sawdust, 5% of fly ash or fly ash, and 3% of sodium chloride, add water to mix, and then The mixed materials are molded on a civil molding machine, and then dried naturally to obtain briquettes. The briquette conforms to the civil briquette standard GB6412-86 formulated by the country, that is, the strength of the briquette reaches 13KN, the combustion efficiency is 36%, the evaporation is 3.5g / g coal, and the carbon monoxide and sulfur dioxide emissions in the flue gas are lower than those of anthracite briquette.

Embodiment 2

[0020] Using the above process steps, take 60% of bituminous coal, 0.5% of starch / 4.5% of clay, 19% of potassium permanganate, 5% of sawdust, 10% of fly ash or fly ash, and 1% of sodium chloride, add water to mix, and then The mixed materials are molded on a civil molding machine, and then dried naturally to obtain briquettes. This briquette conforms to the civil briquette standard GB6412-86 formulated by the state, that is, the strength of the briquette reaches 8KN, the combustion efficiency is 36%, the evaporation is 4.3g / g coal, and the emission of carbon monoxide and sulfur dioxide in the flue gas is lower than that of anthracite briquette

Embodiment 3

[0022] Using the above process steps, take 70% of bituminous coal, 3% of starch, 10% of clay, 8% of potassium permanganate, 2% of sawdust, 2% of fly ash or fly ash, and 5% of sodium chloride, and then mix the The material is molded on a civilian molding machine and dried naturally after molding. The briquette conforms to the civil briquette standard GB6412-86 formulated by the state. The briquette strength reaches 18KN, the combustion efficiency is 36%, the evaporation is 5g / g coal, and the carbon monoxide and sulfur dioxide emissions in the flue gas are lower than those of anthracite briquette.

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PUM

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Abstract

The present invention relates to positive burn honeycomb bituminous coal smoke-less combustion shape coal, said shape coal mainly contains bituminous coal, binder, filler, smoke suppressor, potassium permanganant, saw dust; binder is a mixture of starch and clag, filler is flyash, smoke suppressor is sodium chloride. The invented shape coat can be completely burned on civil honeycomb briquette stove, the carbon monooxide and sulfur dioxide discharged insmoke is lower than that of anthracite honeycomb briquette, it conforms with national quality standard GB 6412-86 of civil shape coal, that is, average shape coal strength reach 13KN, burning rate 36% average evaporation capacity 4g. perg.coal.

Description

technical field [0001] The invention relates to a civil bituminous coal briquette, in particular to a normal burning honeycomb bituminous coal anthracite combustion briquette. Background technique [0002] Due to the high volatile content of bituminous coal, it will release a large amount of black smoke when burned under the condition of anoxic, which mainly includes unburned hydrocarbons, CO and CO 2 and fine-grained carbon. In the prior art, in order to realize the smokeless combustion of bituminous coal, most of them adopt the backfired coal combustion technology. When burning, put the dry briquette into the briquette furnace, and then add a piece of fire cake on the upper layer of the furnace to ignite the bituminous coal briquette; the coal is first burned from the upper part, and the lower briquette is gradually ignited, and the volatile components of the bituminous coal are separated from top to bottom in order, thus Realize smokeless combustion of bituminous coal. ...

Claims

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Application Information

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IPC IPC(8): C10L5/04
Inventor 李登新张建胜吕俊复郭庆杰岳光溪
Owner TSINGHUA UNIV