Coal power furnace decoking agent and application thereof

A technology of decoking agent and pulverized coal furnace, which is applied in the direction of fuel additives, petroleum industry, solid fuel, etc., can solve the problem of no effective decoking agent, etc., and achieve the expansion of coal type adaptability, keep clean, and eliminate coke Effect

Inactive Publication Date: 2021-02-02
李通
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] There is no decoking agent with good effect in the prior art

Method used

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  • Coal power furnace decoking agent and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 A kind of decoking agent for pulverized coal furnace

[0022] In parts by weight, the proportion of raw materials used is: 65 parts of sodium chloride, 33 parts of sodium nitrate, 20 parts of sodium chlorate, 6.2 parts of dolomite powder, 1.1 parts of quartz powder, 3.5 parts of kaolin, 2.9 parts of magnesium oxide, red iron oxide 5.6 parts, charcoal 0.9 parts.

[0023] Raw materials used: the fineness is 80 mesh, and the moisture content is lower than 5%.

[0024] A preparation method of a pulverized coal furnace decoking agent:

[0025] After weighing the raw materials of each component according to the proportion, add them to the mixer one by one, turn on the mixing, control the rotation speed of the mixer at 18r / min, and the mixing time of each batch is 30min, so that the raw materials can be fully mixed evenly. The ambient temperature of the preparation area was controlled at 22°C under normal pressure. In order to ensure that the proportioning rati...

Embodiment 2

[0026] Embodiment 2 A kind of decoking agent for pulverized coal furnace

[0027] In parts by weight, the ratio of raw materials used is: 50 parts of sodium chloride, 20 parts of sodium nitrate, 11 parts of sodium chlorate, 4 parts of dolomite powder, 0.4 part of quartz powder, 1.2 parts of kaolin, 1.20 parts of magnesium oxide, red iron oxide 2 parts, charcoal 0.3 parts.

[0028] Raw materials used: the fineness is 80 mesh, and the moisture content is lower than 5%.

[0029] A preparation method of a pulverized coal furnace decoking agent:

[0030] After weighing the raw materials of each component according to the proportion, add them to the mixer one by one, start stirring, control the speed of the mixer at 25r / min, and stir for 30min in each batch, so that the raw materials can be fully mixed evenly. The ambient temperature of the preparation area is controlled at 28° C. under normal pressure. In order to ensure that the proportioning ratio is normal, after the completi...

Embodiment 3

[0031] Embodiment 3 A kind of decoking agent for pulverized coal furnace

[0032] In parts by weight, the proportion of raw materials used is: 53.72 parts of sodium chloride, 22.99 parts of sodium nitrate, 13.35 parts of sodium chlorate, 4.36 parts of dolomite powder, 0.42 parts of quartz powder, 1.47 parts of kaolin, 1.20 parts of magnesium oxide, red iron oxide 2.14 parts, charcoal 0.35 parts.

[0033] Raw materials used: the fineness is 80 mesh, and the moisture content is lower than 5%.

[0034] A preparation method of a pulverized coal furnace decoking agent:

[0035] After weighing the raw materials of each component according to the proportion, add them to the mixer one by one, start stirring, control the speed of the mixer at 20r / min, and stir for 30min in each batch, so that the raw materials can be fully mixed evenly. The ambient temperature of the preparation area is controlled at 25°C and carried out under normal pressure. In order to ensure that the proportioni...

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PUM

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Abstract

The invention provides a coal power furnace decoking agent, which is characterized by comprising the following raw material components: sodium chloride, sodium nitrate, sodium chlorate, dolomite powder, quartz powder, kaolin, magnesium oxide, iron oxide red and charcoal, and comprises the following raw materials in parts by weight: 50-65 parts of sodium chloride, 20-33 parts of sodium nitrate, 11-20 parts of sodium chlorate, 4-6.2 parts of dolomite powder, 0.4-1.1 parts of quartz powder, 1.2-3.5 parts of kaolin, 1.20-2.9 parts of magnesium oxide, 2-5.6 parts of iron oxide red and 0.3-0.9 partof charcoal. By adopting the decoking agent, coke blocks appearing in operation can be eliminated in time, so that the cleanness of a heating surface is effectively kept, and the heat efficiency of the boiler can be continuously operated at a high level.

Description

technical field [0001] The invention relates to a decoking agent for pulverized coal furnace and its application, belonging to the technical field of environmental protection technology. Background technique [0002] Coking is a relatively common problem in the operation of pulverized coal furnace boilers. Generally, the ash particles moving together with the flue gas are cooled together with the flue gas due to the heat absorption of the heating surface of the furnace water wall. If the liquid slag particles Before approaching the water cooling wall or furnace wall, it has solidified due to the temperature drop. When it is attached to the tube wall of the heating surface, a layer of loose ash layer will be formed, which can be easily removed by soot blowing during operation. When the temperature in the furnace is high, some of the ash particles have reached the molten or semi-molten state. If this part of the ash particles has not been cooled enough to reach the solidified ...

Claims

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Application Information

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IPC IPC(8): C10L9/10C10L10/04
CPCC10L9/10C10L10/04
Inventor 李通
Owner 李通
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