Solid desulfuration incendiary agent for coal-burning boiler

A technology of coal-fired boilers and combustion agents, applied in the direction of fuel additives, fuel, petroleum industry, etc., can solve the problems of low desulfurization efficiency, achieve full combustion, improve combustion efficiency, and increase the surface area of ​​absorption

Inactive Publication Date: 2011-11-02
河南省新雅环保设备工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly solves the problem of low desulfurization efficiency in the combustion process of coal-fired boilers, and improves the value-added reuse technology of coal-fired boiler solid waste fly ash

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Take the preparation of 64kg coal-fired boiler consolidated desulfurization combustion agent as an example:

[0056] raw material

quicklime

wollastonite

calcium chloride

shale

rock salt

Weight (kg)

60

1

1

1

1

[0057] The above ingredients are crushed, and the particle size is controlled at 0.2-3.0 mm to prepare a desulfurizer.

[0058] In January 2006, the 25t / h circulating fluidized bed of Wu'an thermal power plant was used for batching trial combustion. The boiler load rate is 98%, the calcium-sulfur ratio is 6.5, and the boiler thermal efficiency is 99.96%. The average value of sulfur dioxide in flue gas before adding desulfurizer is 2500mg / Nm 3 , The monitoring center of the Environmental Protection Bureau of Hebei Province monitored the exhaust gas, and the content of sulfur dioxide in the flue gas was not detected, and 6% of coal was saved.

Embodiment 2

[0060] Take the preparation of 77kg coal-fired boiler consolidated desulfurization combustion agent as an example:

[0061] raw material

quicklime

wollastonite

calcium chloride

shale

rock salt

Weight (kg)

65

3

3

3

3

[0062] The above ingredients are crushed, and the particle size is controlled at 0.2-3.0 mm to prepare a desulfurizer.

[0063] In February 2006, the 25t / h circulating fluidized bed of Wu'an thermal power plant was used for batching trial combustion. The boiler load rate is 98%, the calcium-sulfur ratio is 6.8, and the boiler thermal efficiency is 99.72%. The average value of sulfur dioxide in the flue gas before adding desulfurizer is 2500mg / Nm 3 , The monitoring center of the Environmental Protection Bureau of Hebei Province monitored the flue gas emission. The content of sulfur dioxide in the flue gas was not detected, and 5% of coal was saved, and 7% of coal was saved.

Embodiment 3

[0065] Take the preparation of 127kg coal-fired boiler consolidated desulfurization combustion agent as an example:

[0066] raw material

quicklime

wollastonite

calcium chloride

shale

rock salt

Weight (kg)

95

8

6

10

8

[0067] The above ingredients are crushed, and the particle size is controlled at 0.5-2.5 mm to prepare a desulfurizer.

[0068] In March 2006, the 25t / h circulating fluidized bed of Wu'an thermal power plant was carried out batching trial combustion. The boiler load rate is 98%, the calcium-sulfur ratio is 5.6, and the boiler thermal efficiency is 98.86%. The average value of sulfur dioxide in flue gas before adding desulfurizer is 2500mg / Nm 3 , The monitoring center of the Environmental Protection Bureau of Hebei Province monitored the exhaust gas, and the content of sulfur dioxide in the flue gas was not detected, and 6% of coal was saved.

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Abstract

The present invention provides a new type solid desulfurization incendiary agent, especially relating to a solid desulfurization incendiary agent capable of effectively reducing the air environmental pollution and solid waste of the coal-fired boiler, prepared of quick lime, wollastonite, calcium chloride, shale and halite. The solid desulfurization incendiary agent of the invention adequately enhances desulfurization efficiency of the coal-fired boiler, achieving the effects of saving coal, and reducing carbon, effectively avoiding dust pollution, the slag is directly cycled use, bringing multiple economic.

Description

Technical field: [0001] The invention relates to a novel consolidated desulfurization combustion agent, in particular to a consolidated desulfurization combustion agent capable of effectively reducing atmospheric environmental pollution and solid waste from coal-fired boilers. Background technique: [0002] Atmospheric pollution is one of the prominent environmental problems in my country at present. It brings serious harm to the health of the population and causes huge losses to the national economy. Thermal power plants and industrial boilers are the largest sources of sulfur dioxide emissions in China in the future, and they are the main causes of air pollution in my country. The most important reason is that although the control of industrial waste gas in my country has been continuously strengthened, the emission of air pollution in my country has been reduced, but the emission of major air pollution is still alarming. my country has invested a lot of money in the contro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L10/04B01D53/50
Inventor 宋云星侯岛姚曙光
Owner 河南省新雅环保设备工程设计有限公司
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