Coke-removing and soot-cleaning combustion improver for boiler

A combustion aid and boiler technology, which is applied in the direction of fuel additives, fuel, gas fuel, etc., can solve the problems of large coke shedding, personal casualties, and large coal consumption, so as to protect the environment, extend the overhaul period, and save energy. Effect

Inactive Publication Date: 2011-01-26
吉林鑫聚源节能材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the ash accumulation has a great influence on the service life and heat transfer rate of the boiler. Due to the large amount of coal consumption of large-capacity power generation boilers and thermal power boilers, the amount of ash accumulation is much larger than that of industrial boilers. The increase of coal and the change of coal type (the ash with high sulfur content and low melting point) will thicken, causing large coke to fall off automatically, causing fire extinguishing, furnace shutdown accidents, and even personal injury accidents.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Boiler decoking and ash cleaning additives: 30% sodium nitrate, 25% potassium nitrate, 11% calcium nitrate, 19% salt, 15% borax. It is mainly used as a decoking agent. When put into use, the boiler should be in a hot state of burning (such as coal) for a period of time, so that the temperature of the furnace can reach above 600°C, and it can be evenly thrown into the most prosperous part of the furnace through the furnace door or observation hole, and the dosage is divided into 2-3 times a day. When dosing, the opening time of the furnace door should be reduced as much as possible to prevent the furnace temperature from dropping too much. In this way, in the case of violent combustion, the chemical gas can fully contact the heating surface adhered to the coke scale, so as to achieve the best effect. After using this product, it should be used continuously and regularly until the scale is removed, and the effect of interrupted use will be weakened. The dosage is 5 / 10,00...

Embodiment 2

[0014] Boiler decoking and ash cleaning additives: 12.50% sodium nitrate, 17.50% potassium nitrate, 5.50% calcium nitrate, 15% salt, 49.50% borax. Mainly used as a dust remover. It can be put into use after being mixed with fuel according to 5 / 10,000 of the daily fuel. This product also can add by embodiment 1 mode.

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PUM

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Abstract

The invention relates to a fuel additive, in particular to a coke-removing and soot-cleaning combustion improver for a boiler, suitable for various boilers, kilns, and other fuel furnaces using coal, oil, gas and natural gas as fuel, such as industrial boilers, civil boilers, ship boilers, drinking water boilers, steam locomotives, and the like. The coke-removing and soot-cleaning combustion improver is prepared from the following raw materials in percentage by weight: 12.5-30 percent of sodium nitrate, 17.50-25 percent of potassium nitrate, 5.50-11 percent of calcium nitrate, 15-19 percent of salt and 15-49.50 percent of borax. The coke-removing and soot-cleaning combustion improver can prevent the forming of new coke, is beneficial to the full combustion of the fuel, ensures that deposited chimney soot is fully combusted, reduces sticky carbon and carbide, plays a certain corrosion inhibition role to the boiler and prolongs the service life of the boiler.

Description

technical field [0001] The invention relates to a fuel additive, that is, a boiler coke-removing and ash-removing combustion accelerant. It is suitable for all kinds of boilers, kilns and other fuel furnaces that use coal, oil, gas and natural gas as fuel, such as industrial boilers, civil boilers, marine boilers, tea stoves, steam locomotives, etc. Background technique [0002] In the prior art, fuel coal or oil always contains carbon, sulfur, water and other mineral impurities, and the flue gas formed when it is burned constitutes CO 2 -SO 3 -H 2 O air system, when encountering various heat exchangers, the surface temperature is much lower than the flue gas temperature, so that various components in the flue gas are separated out, which on the one hand leads to the formation of highly corrosive sulfates on the heating surface of the boiler And sulfite, on the other hand sticks to the ash in the flue gas, and finally forms a kind of ash that is not easy to fly and has a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/12C10L10/04C10L10/06C10L3/00
Inventor 鞠立梅
Owner 吉林鑫聚源节能材料有限责任公司
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