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Coal additive for reducing smoke dust discharging quantity

A technology of coal additives and emissions, applied in the field of coal additives, can solve the problems of low coal quality, large smoke and dust emissions, low coal utilization and combustion efficiency, etc., to reduce emissions, improve coal combustion efficiency, and reduce environmental pollution Effect

Inactive Publication Date: 2015-12-30
镇江华龙煤质制样设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, the quality of coal in our country is low, the utilization rate and combustion efficiency of coal are low, and the emissions of sulfur dioxide, nitrogen oxides and soot are large

Method used

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  • Coal additive for reducing smoke dust discharging quantity

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Party:

[0027] Nano silicon dioxide 10g, slag 10g, sodium percarbonate 4g, triethanolamine acetate 1g,

[0028] Manganese oxide 2g, magnesium oxide 2g, calcium hydroxide 2g, sodium dodecylbenzenesulfonate 0.2g,

[0029] Sodium chloride 1g, nitrate 1g, polyacrylamide 2g, high alumina bauxite 8g.

[0030] Preparation:

[0031] (1) Take sodium dodecylbenzenesulfonate and polyacrylamide, add deionized water, stir evenly, and obtain mixed solution A;

[0032] (2) Take nano silicon dioxide, slag, sodium percarbonate, triethanolamine acetate, manganese oxide, magnesium oxide, calcium hydroxide and high alumina bauxite, grind them into fine powder, add deionized water, stir evenly, and get Mixture B;

[0033] (3) Mix the above mixed solution A and mixed solution B, add sodium chloride and nitrate, and make a water dispersant according to the conventional method.

[0034] The concentration of the coal additive is 40%.

Embodiment 2

[0036] Party:

[0037] Nano silica 10g, slag 20g, sodium percarbonate 10g, triethanolamine acetate 5g,

[0038] Manganese oxide 8g, magnesium oxide 6g, calcium hydroxide 8g, sodium dodecylbenzenesulfonate 0.8g,

[0039] Sodium chloride 5g, nitrate 5g, polyacrylamide 6g, high alumina bauxite 16g.

[0040] Preparation:

[0041] (1) Take sodium dodecylbenzenesulfonate and polyacrylamide, add deionized water, stir evenly, and obtain mixed solution A;

[0042] (2) Take nano silicon dioxide, slag, sodium percarbonate, triethanolamine acetate, manganese oxide, magnesium oxide, calcium hydroxide and high alumina bauxite, grind them into fine powder, add deionized water, stir evenly, and get Mixture B;

[0043] (3) Mix the above mixed solution A and mixed solution B, add sodium chloride and nitrate, and make a water dispersant according to the conventional method.

[0044] The concentration of the coal additive is 60%.

Embodiment 3

[0046] Party:

[0047] Nano silicon dioxide 10g, slag 15g, sodium percarbonate 7g, triethanolamine acetate 3g,

[0048] Manganese oxide 5g, magnesium oxide 4g, calcium hydroxide 5g, sodium dodecylbenzenesulfonate 0.5g,

[0049] Sodium chloride 3g, nitrate 3g, polyacrylamide 4g, high alumina bauxite 12g.

[0050] Preparation:

[0051] (1) Take sodium dodecylbenzenesulfonate and polyacrylamide, add deionized water, stir evenly, and obtain mixed solution A;

[0052] (2) Take nano silicon dioxide, slag, sodium percarbonate, triethanolamine acetate, manganese oxide, magnesium oxide, calcium hydroxide and high alumina bauxite, grind them into fine powder, add deionized water, stir evenly, and get Mixture B;

[0053] (3) Mix the above mixed solution A and mixed solution B, add sodium chloride and nitrate, and make a water dispersant according to the conventional method.

[0054] The concentration of the coal additive is 50%.

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Abstract

The invention provides a coal additive, which is mainly prepared from the following ingredients in parts by weight: 10 parts of nanometer silicon dioxide, 10 to 20 parts of furnace slag, 4 to 10 parts of sodium percarbonate, 1 to 5 parts of triethanolamine acetate, 2 to 8 parts of manganese oxide, 2 to 6 parts of magnesium oxide, 2 to 8 parts of calcium hydroxide, 0.2 to 0.8 parts of sodium dodecyl benzene sulfonate, 1 to 5 parts of sodium chloride, 1 to 5 parts of nitrate, 2 to 6 parts of polyacrylamide and 8 to 16 parts of high-alumina bauxite. Compared with the prior art, the coal additive provided by the invention has the advantages that the nanometer silicon dioxide is used for replacing the common nanometer titanium dioxide in common use in the prior art; the effects of coal firing efficiency improvement, desulfurization and denitrification can be achieved; in addition, the smoke dust discharging quantity can also be obviously reduced; the environment pollution is reduced.

Description

technical field [0001] The invention relates to a coal additive for reducing soot emission, and belongs to the technical field of coal-burning fuel additives. Background technique [0002] In my country's primary energy consumption structure, coal accounts for about 3 / 4, and the production and consumption of coal rank among the top in the world. Coal is still the primary energy source in my country, and more than 85% of the carbon-based fuels used for thermal power generation, industrial boilers, industrial kilns and household stoves are directly burned. Sulfur dioxide and soot emitted from coal combustion in my country account for about 90% and 70% of the country's total emissions, respectively, and carbon dioxide and nitrogen oxide emissions also account for about 80% and 65% of the country's total emissions, respectively. [0003] However, at present, our country's coal quality is low, coal utilization and combustion efficiency are low, and sulfur dioxide, nitrogen oxide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 周睿
Owner 镇江华龙煤质制样设备有限公司
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