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Boiler coke eliminating agent

A decoking agent and boiler technology, which is used in complex/solubilizer treatment, flushing, cleaning of heat transfer devices, etc., can solve the problems of large decoking dosage, incomplete decoking, environmental pollution, etc., and achieves less dosage. , The effect of inhibiting alkali corrosion and no explosion hazard

Inactive Publication Date: 2004-04-07
戴琦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] What the present invention aims to solve is to overcome the problems of large dosage of decoking of existing powders, laborious and troublesome putting in, polluting the environment, incomplete decoking, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] Mix commercially available chemically pure nitrate, boric acid raw materials and water according to the following weight percentages: potassium nitrate 4.5-8.0%, copper nitrate 0.2-0.55%, magnesium nitrate 1.0-3.0%, aluminum nitrate 0.5-1.2%, boric acid 0.3- 1.2%, the balance is water.

[0010] The product characteristic parameters of this product are: appearance: light blue liquid, specific gravity: 1.028-1.1, pH: 4-6.7, freezing point: -10°C.

[0011] Specific formula example:

[0012] Formula 1: potassium nitrate 5.5%, copper nitrate 0.27%, magnesium nitrate 1.2%, aluminum nitrate 0.8%, boric acid 0.5%, water 91.7 3%.

[0013] Formula 2: potassium nitrate 4.7%, copper nitrate 0.48%, magnesium nitrate 1.43%, aluminum nitrate 0.94%, boric acid 0.7%, water 91.75%.

[0014] Formula 3: potassium nitrate 7.5%, copper nitrate 0.23%, magnesium nitrate 1.1%, aluminum nitrate 0.61%, boric acid 0.33%, water 90.23%.

[0015] The proportion of raw materials should be determine...

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PUM

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Abstract

The present invention relates to the technology of cleaning the inner wall of boiler with chemical solution. The chemical solution consists of potassium nitrate, copper nitrate, magnesium nitrate, aluminum nitrate and boric acid; and it may be jetted via the observation hole to the flame area of operating boiler or sprayed to the surface of formed coke of idle boiler.

Description

technical field [0001] The invention belongs to the technical field of cleaning the inner wall of a boiler with a chemical solution. Background technique [0002] To the applicant's knowledge, coking in the furnace has a significant impact on the safety, economical operation and reliability of the boiler. Taking a power boiler as an example, the coking of the furnace increases the heat transfer resistance of the water-cooled wall, the water-cooled wall absorbs insufficient heat, and the output of the boiler decreases. As the temperature of the hot steam rises, the amount of desuperheating water increases sharply. In severe cases, due to overheating, the load should be reduced. When the burner is coked, the aerodynamic field in the furnace is affected, the combustion loss is large, and the burner is even burned; large coke pieces fall and extinguish the pulverized coal torch; severe coking will block the ash hopper, and the furnace is forced to...

Claims

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Application Information

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IPC IPC(8): C02F5/08F28G9/00
Inventor 戴琦
Owner 戴琦
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