Catalytic combustion-supporting additive for pulverized coal boiler of fuel electric plant

A technology for thermal power plants and pulverized coal boilers, applied in the field of catalytic combustion-supporting additives, can solve the problems of being unsuitable for medium and high pressure large pulverized coal boilers, and achieve good effects, convenient use, and less dosage

Inactive Publication Date: 2013-10-16
王保行
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  • Application Information

AI Technical Summary

Problems solved by technology

Although my country's coal-saving and sulfur-fixing additive technology has a history of more than 20 years, most of them are only suitable for small and medium chain boilers, not suitable for medium and high pressure large pulverized coal boilers

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment

[0044] Powder (composition weight percentage):

[0045] Sodium Lignosulfonate 20%, Calcium Lignosulfonate 10%, Potassium Hydroxide 10%, Sodium Hydroxide 15%, Manganese Oxide 10%, Magnesium Oxide 5%, Iron Oxide 5%, Aluminum Oxide 5%, Potassium Oxide 10%, rare earth chloride 10%.

[0046] Liquid (composition weight percentage):

[0047] Lithium perchlorate 5%, sodium perchlorate 30%, potassium perchlorate 10%, ammonium perchlorate 10%, cobalt nitrate 2.5%, copper nitrate 2.5%, Tween 804%, organic fluorine 2011%, purified water 35% .

[0048] The powdered catalytic combustion-supporting agent produced according to this formula has a strong catalytic combustion-supporting effect on pulverized coal, and the dosage is 0.04% of the weight of the coal; when in use, the powder dry powder is evenly mixed into the coal on the coal conveyor belt in proportion, Run into the coal mill. It can improve the quality of pulverized coal, enhance the activity of pulverized coal, and promote th...

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PUM

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Abstract

The invention belongs to a catalytic combustion-supporting additive for fire coals of a pulverized coal boiler of a fuel electric plant use, which is composed of powder and liquor. The manufacturing and the using of the additive is realized according to a mechanism that coal is pulverized to powder by a pulverizer and then is blown into the boiler for combustion, and the application of properties of high dispersivity, high permeability, and high catalysis of a high energy catalyst. The manufacturing method of the additive comprises the following steps: firstly, preparation of the powder, and secondly, preparation of the liquor. The using method of the additive is as follows: adding the additive into coals directly, and sending into a coal pulverizer to operate, so as to improve the quality of the pulverized coal, increase the activity of the pulverized coal, and promote the pulverized coal to combust fiercely and fully in the boiler; and spraying the liquor in vaporous to a high-temperature fire zone in the boiler to react with the baking-hot coal, so as to generate water gas to participate in and help the combustion to emit strong heat. The additive has the advantages of small dosage, good effect, and convenience in using, helps to combust efficiently, and has the effect of decoking and deashing.

Description

technical field [0001] The invention belongs to a catalytic combustion-supporting additive for coal-fired coal pulverized boilers in thermal power plants. Background technique [0002] In recent years, with the rapid development of the national economy, the demand for coal has been increasing, and the extensive use of coal has not only caused a shortage of coal resources, but also caused a large amount of sulfur dioxide emissions. How to alleviate the shortage of coal resources and how to control the increasingly serious pollution caused by coal burning are problems that we must find ways to seriously solve. [0003] Thermal power plants are large coal users, and 70% of the coal used in my country is burned by pulverized coal boilers in thermal power plants. Reducing the amount of standard coal consumed per unit of electricity and reducing the coal consumption of pulverized coal boilers is an urgent problem to be solved. Although my country's coal-saving and sulfur-fixing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 王保行
Owner 王保行
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