Multifunctional coal-fired energy-saving additive

An additive and multi-functional technology, applied in the direction of fuel additives, fuel, petroleum industry, etc., can solve the problems of environmental pollution, large dosage, incomplete decoking and ash removal, etc., and achieve the effect of less dosage and no pollution to the environment

Active Publication Date: 2010-02-17
袁锁营
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The above-mentioned products are generally mainly dust removal, supplemented by decoking, or mainly decoking and dust removal, and there are problems such as large dosage, polluting the environment, and incomplete decoking and ash removal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Example 1 Multifunctional coal-fired energy-saving additive and its application in decoking

[0010] 1. Preparation of multifunctional coal-fired energy-saving additives:

[0011] 10% by weight of commercially available potassium nitrate, 7% by weight of copper nitrate, 8% by weight of magnesium nitrate, 10% by weight of zinc, 25% by weight of sodium chloride, 15% by weight of sulfuric acid, 20% by weight of aluminum nitrate, and 5% by weight of boric acid are pulverized Then stir to combine.

[0012] 2. Use the above-mentioned coal-fired additives for a coal-fired boiler in a power plant.

[0013] When the boiler is running, sprinkle it into the flame area from the boiler observation hole or add it from the coal burning hopper. The amount to be added is about 2 / 10,000 of the weight of the coal, and when the coking and slag are severe, add 5 / 10,000 of the fuel every 12 hours.

[0014] 2.1 Change of exhaust gas temperature

[0015] After using the above coal-fired ad...

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PUM

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Abstract

The invention provides a multifunctional coal-fired energy-saving additive for a boiler to remove coke and dust and prevent corrosion. The multifunctional coal-fired energy-saving additive comprises the following components by weight percent: 5-15 percent of potassium nitrate, 1-9 percent of copper nitrate, 4-12 percent of magnesium nitrate, 8-12 percent of zinc, 20-30 percent of sodium chloride,10-20 percent of copper sulphate, 15-25 percent of aluminium nitrate and 1-7 percent of boric acid. The coal-fired additive has little dosage, occupies 0.02-0.05 percent of fuel, does not have toxicity, taste, corrosion or explosion dangers, is harmless for a human body and has no pollution for the environment.

Description

technical field [0001] The invention belongs to the technical field of cleaning the inner wall of a boiler in the chemical industry, and in particular relates to a coal-fired additive for boiler decoking. Background technique [0002] Coal-fired boilers generally have problems such as furnace coking, dust accumulation and corrosion. When the boiler is coked and ash accumulates, the evaporation capacity of the boiler will decrease, and the exhaust gas temperature and flue gas resistance will increase. It not only deteriorates the combustion conditions and reduces the thermal efficiency of the boiler, but also causes partial water circulation failure, and even causes part of the tube wall to overheat and burn out, forcing the boiler to shut down. Therefore, the harm of coal furnace coking is very great, which seriously affects the safety and economical operation of the boiler. [0003] The ash pollution on the heating surface of the boiler can be divided into loose ash and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L10/04C10L10/06
Inventor 袁锁营
Owner 袁锁营
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