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Industrial combustion additive

An additive and industrial technology, applied in the direction of fuel additives, petroleum industry, fuel, etc., can solve problems such as personal injury accidents, large coke falling off, furnace shutdown accidents, etc., and achieve the effects of protecting the environment, saving energy, and reducing pollution

Inactive Publication Date: 2013-10-30
广州科汇成科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, fuel coal or oil always contains carbon, sulfur, moisture 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 with high viscosity that is not easy to fly away on the heating surface of the boiler
As we all know, ash accumulation has a great influence on the service life and heat transfer rate of boilers. 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. With the change of coal type, it will thicken, causing large coke to fall off automatically, causing fire extinguishing, furnace shutdown accidents, and even personal casualties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Boiler decoking and ash cleaning additives: 11% sodium chloride, 25% sodium nitrate, 15% calcium nitrate, 15% iron oxide, 34% boric acid. It can be prepared by mixing and stirring the above raw materials, grinding and crushing until the particle size is 120 mesh.

Embodiment 2

[0022] Boiler decoking and ash cleaning additives: 9% sodium chloride, 24% sodium nitrate, 18% calcium nitrate, 23% iron oxide, 26% boric acid. It can be prepared by mixing and stirring the above raw materials, grinding and crushing until the particle size is 150 mesh.

[0023] When the boiler should be in a hot state of burning (such as biomass fuel) for a period of time, so that the temperature of the furnace can reach above 600 ° C, it can be evenly thrown at the most prosperous part of the furnace fire through the furnace door or observation hole, and the drug can be dosed 2 to 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...

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PUM

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Abstract

The invention discloses an industrial combustion additive which is composed of 9-25% of sodium chloride, 14-35% of sodium nitrate, 8-19% of calcium nitrate, 18-23% of iron oxide, and 15-42% of a boric acid. According to the industrial combustion additive, fuels are combusted fully, viscous carbon and carbides are reduced, and the industrial combustion additive is uneasily adhered to the inside of a boiler furnace, so that the boiler furnace keeps clean, the thermal efficiency of a boiler can be improved by 4-5%, and the coal saving rate is up to 7-10%.

Description

technical field [0001] The invention relates to a fuel additive, in particular to various boilers, kilns and the like which use coal, oil, coal gas and natural gas as fuels. Background technique [0002] In the prior art, fuel coal or oil always contains carbon, sulfur, moisture 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 high viscosity on the heating surface of the boiler. As we all know, ash accumulation has a great influence on the service life and heat transfer rate of boilers. Due to the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L10/02C10L10/06C10L10/04
Inventor 刘安庆
Owner 广州科汇成科技服务有限公司