Coal sulfur-fixation flame accelerator and preparation method thereof

A technology of combustion accelerator and combustion accelerator group, which is applied in the field of coal sulfur-fixing combustion accelerator and its preparation, which can solve the problems of high cost and poor sulfur-fixing effect, achieve high use efficiency, reduce environmental pressure, and increase economic benefits Effect

Inactive Publication Date: 2014-04-02
SHIJIAZHUANG XINBANGER ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a coal sulfur-fixing and combustion-accelerating agent to solve the problems of poor sulfur-fixing effect and high cost in the application of desulfurization technology in coal combustion furnaces, and to improve the combustion-promoting effect at the same time

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  • Coal sulfur-fixation flame accelerator and preparation method thereof
  • Coal sulfur-fixation flame accelerator and preparation method thereof
  • Coal sulfur-fixation flame accelerator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1 Preparation example of coal sulfur fixation combustion accelerator

[0041] 1. Prepare materials according to the following components and proportions: 20 parts of alumina, 15 parts of iron oxide, 10 parts of magnesium oxide, 5 parts of silicon oxide, 8 parts of aluminum humate, 8 parts of magnesium humate, 20 parts of coal powder, 3 parts of sodium hydroxide, 1 part of potassium oxide, and 1 part of calcium hydroxide.

[0042] 2. Preparation method:

[0043] (1) Mix the above components and stir evenly;

[0044] (2) Grinding the mixture obtained in step (1) into a fine powder of 160 mesh;

[0045] (3) Divide the fine powder obtained in step (2) into separate packages.

Embodiment 2~4

[0046] Embodiment 2~4 preparation example of coal sulfur fixation combustion accelerator

[0047] 1. Prepare materials according to the components and proportions in Table 1:

[0048] Table 1 Embodiment 2~4 components and proportioning

[0049]

[0050] 2. Preparation method: except that the number of meshes is different and shown in Table 2, the others are the same as in Example 1.

[0051] Table 2 Example 2~4 fine powder mesh number

[0052]

[0053] Embodiment 5~7 and comparative example 1~5

[0054] Sulfur-fixing treatment: adopt the coal-sulphur-fixing combustion accelerator prepared in Example 1, Example 2, listed product 1 or listed product 2 to carry out sulfur-fixed treatment on coal, the method is as follows:

[0055] Mix the above-mentioned coal sulfur-fixing combustion accelerator evenly into the coal before burning coal into the furnace, then add a mixture of calcium acetate and calcium hydroxide, and burn it. The mixed solution concentration of calcium ...

Embodiment 8

[0059] Example 8 Combustion promotion and sulfur fixation effect test

[0060]Taking the listed product 1 and the listed product 2 circulating in the market as a comparison, the percentage content of the coal slag after coal combustion in Examples 5 to 7 in the coal before combustion and the total sulfur content in the coal slag were measured.

[0061] The determination method is as follows:

[0062] 1. Collect the coal slag after combustion of Examples 5-7, Comparative Example 1, Comparative Example 2 and Comparative Example 4, and calculate the weight percentage of coal slag in the coal before combustion.

[0063] 2. Take the above-mentioned ash samples, and measure the total sulfur content in them according to the method stipulated in the national standard GB / T214 (the weight percentage of all forms of sulfur in the cinder).

[0064] The measurement results are shown in Table 4.

[0065] Table 4 Determination results of percentage content of cinder and total sulfur conten...

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Abstract

The invention relates to a coal sulfur-fixation flame accelerator which consists of a first flame-accelerating agent, a second flame-accelerating agent and a sulfur-fixation agent, wherein the first flame-accelerating agent consists of 18-20 parts of aluminum oxide, 12-15 parts of iron oxide, 8-10 parts of magnesium oxide and 4-5 parts of silicon oxide; the second flame-accelerating agent consists of 18-20 parts of coal powder, 3 parts of sodium hydroxide, 1 part of potassium oxide and 1 part of calcium hydroxide; the sulfur-fixation agent is composed of 6-8 parts of aluminum humate and 6-8 parts of magnesium humate. The coal sulfur-fixation flame accelerator disclosed by the invention has the characteristics of enabling high-sulfur coal to be subjected sulfur fixing in a coal-fired furnace, reducing smoke, accelerating combustion, saving coals, clearing coke and removing dirt, is widely applied to a powdered coal furnace, a boiling furnace, a coal throwing furnace, a chain furnace and a rotary kiln, can be used for removing sulfur and fixing sulfur in a high-sulfur coal furnace, is clean in combustion, and can be used for reducing smoke gas exhaustion.

Description

technical field [0001] The invention relates to the field of coal application, in particular to a coal sulfur-fixing combustion accelerator and a preparation method thereof. Background technique [0002] my country is a developing country that uses coal as its main energy source. Industrial production and residents' lives depend on coal consumption. However, coal combustion produces a large amount of sulfur dioxide, which causes serious pollution to the environment. In order to solve this problem, a variety of desulfurization technologies have emerged in the industry, including desulfurization before combustion, desulfurization in the furnace, and flue gas desulfurization after combustion. [0003] In-furnace desulfurization technology is to add a sulfur-fixing agent in the furnace to make the sulfur dioxide produced in the coal combustion process directly react with the sulfur-fixing agent and be solidified, so as to reduce the release of sulfur dioxide. However, for a lon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10C10L10/00
Inventor 董建敏韩锦德范志斌冯红霞
Owner SHIJIAZHUANG XINBANGER ENERGY SAVING TECH CO LTD
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