Desulfurization, dedusting and coal combustion promoter

Abstract

The invention discloses a preparation method of a desulfurization, dedusting and coal combustion promoter, and is characterized in that the method comprises the following process steps: according to the mass percentage concentration, adding 20%-30% of potassium nitrate, 10-16% of aluminum nitrate, 12-20% of calcium carbonate, 5-10% of potassium permanganate, 15-25% of soluble starch, 4-10% of ferric chloride and 8-18% of betaine into a reactor, wherein the sum of the percentages of all the components is 100%; and mixing evenly, and thus obtaining the coal desulfurization, dedusting and coal combustion promoter. The preparation method has the advantages of simple preparation process, low production cost and easy industrialized production, is not corrosive to a boiler with long-term use, can also reduce fouling of calcium sulfate in the boiler, improves the service life of the boiler, and improves the combustion efficiency of coal.

Description

technical field [0001] The invention relates to the technical field of coal combustion, in particular to a desulfurization, dust removal and coal combustion accelerator. Background technique [0002] my country is a big coal consumer, and coal accounts for about 70% of primary energy consumption. In 2013, the total coal production reached 3.7 billion tons, of which about 2.6 billion tons were used for direct combustion or power generation. Due to backward combustion technology, incomplete combustion, and low combustion efficiency, low-quality coal with low energy levels is not used or is rarely used and is wasted. The problem of energy waste is serious. The main pollutants produced during the combustion of coal are: carbon dioxide, carbon monoxide, sulfur dioxide (sulfur trioxide can be produced in contact with air), nitrogen dioxide (dinitrogen tetroxide can be formed under certain conditions), nitrogen monoxide, dust, etc. Air pollution is the main cause of smog. Theref...

AI Technical Summary

Problems solved by technology

②The introduction of the leavening agent sodium acetate is to conduct base exchange with the humate in the coal, and generate humate with a lower ignition point, which reduces the ignition performance of the coal

[0004] Most of the above-mentioned existing technologies adopt the principle of oxygen-assisted combustion, and usually use sodium chloride, potassium permanganate, sodium nitrate, magnesium chloride, potassium nitrate, potassium chlorate, etc. reduce boiler life

Secondly, the function is single, lack of dust removal, anti-coking, catalyst

Most of the sulfur fixatives use organic matter, which makes the price very high and affects the use of manufacturers