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Civil high-strength sulfur-fixing briquette and preparation method thereof

A high-strength, civilian-use technology, applied in the field of coal product processing, can solve the problems of low coal combustion efficiency, briquette coal collapse, low thermal intensity, etc., to facilitate large-scale promotion and utilization, increase sulfur fixation rate, and improve wetting capacity Effect

Active Publication Date: 2019-09-24
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to address the above problems, providing a civil high-strength sulfur-fixing briquette and a preparation method thereof. The briquettes prepared by the method of the present invention have performance indicators such as compressive strength, thermal strength and sulfur-fixing rate that are better than Ordinary civilian briquettes, the invention solves the problem of easy furnace collapse, low coal combustion efficiency, SO 2 Issues such as excessive emissions

Method used

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  • Civil high-strength sulfur-fixing briquette and preparation method thereof
  • Civil high-strength sulfur-fixing briquette and preparation method thereof

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Effect test

Embodiment 1

[0023] A civil high-strength sulfur-fixing briquette, the briquette is made of the following components in parts by weight: 60 parts of anthracite powder, 12 parts of fat coal powder, 1 part of sodium-based bentonite, 1 part of calcium oxide, corn preservative 0.5 parts of gelatinized starch, 0.2 parts of silicon dioxide, 0.2 parts of sodium chloride, 0.1 parts of sodium dodecylbenzenesulfonate, and 13 parts of water. Among them, the anthracite coal powder is selected from Jincheng anthracite, and the fat coal powder is selected from Shanxi Dongqu fat coal. The particle size of both anthracite and fat coal powder is less than 3mm. Sodium chloride and sodium dodecylbenzenesulfonate are solid powders.

[0024] A method for preparing civil high-strength sulfur-fixed briquettes, comprising the steps of:

[0025] (1) Anthracite and fat coal pulverized are pulverized respectively until the particle diameter of anthracite and fat coal is below 3mm;

[0026] (2) Add pulverized anthr...

Embodiment 2

[0029] A high-strength sulfur-fixing briquette for civil use, the briquette is made of the following components in parts by weight: 65 parts of anthracite powder, 13 parts of fat coal powder, 1.5 parts of sodium-based bentonite, 1.5 parts of calcium oxide, corn preservative 0.8 parts of gelatinized starch, 0.35 parts of silicon dioxide, 0.3 parts of sodium chloride, 0.15 parts of sodium dodecylbenzenesulfonate, and 14 parts of water. Among them, the anthracite coal powder is selected from Jincheng anthracite, and the fat coal powder is selected from Shanxi Dongqu fat coal. The particle size of both anthracite and fat coal powder is less than 3mm. Sodium chloride and sodium dodecylbenzenesulfonate are solid powders.

[0030] A method for preparing civil high-strength sulfur-fixed briquettes, comprising the steps of:

[0031] (1) Anthracite and fat coal pulverized are pulverized respectively until the particle diameter of anthracite and fat coal is below 3mm;

[0032] (2) Add ...

Embodiment 3

[0035] A high-strength sulfur-fixing briquette for civil use, the briquette is made of the following components in parts by weight: 70 parts of anthracite powder, 15 parts of fat coal powder, 2 parts of sodium-based bentonite, 2 parts of calcium oxide, corn preservative 1.0 parts of gelatinized starch, 0.5 parts of silicon dioxide, 0.5 parts of sodium chloride, 0.2 parts of sodium dodecylbenzenesulfonate, and 15 parts of water. Among them, the anthracite coal powder is selected from Jincheng anthracite, and the fat coal powder is selected from Shanxi Dongqu fat coal. The particle size of both anthracite and fat coal powder is less than 3mm. Sodium chloride and sodium dodecylbenzenesulfonate are solid powders.

[0036] A method for preparing civil high-strength sulfur-fixed briquettes, comprising the steps of:

[0037] (1) Anthracite and fat coal pulverized are pulverized respectively until the particle diameter of anthracite and fat coal is below 3mm;

[0038] (2) Add pulver...

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Abstract

The invention provides a civil high-strength sulfur-fixing briquette and a preparation method thereof. The briquette is prepared by mixing, by weight, 65-70 parts of anthracite powder, 12-15 parts of fat coal powder, 1-2 parts of sodium bentonite, 1-2 parts of calcium oxide, 0.5-1.0 part of corn pregelatinized starch, 0.2-0.5 part of silicon dioxide, 0.2-0.5 part of sodium chloride, 0.1-0.2 part of sodium dodecyl benzene sulfonate and 13-15 parts of water. The preparation method of the briquette comprises the steps of firstly, crushing the anthracite coal and the fat coal powder until the particle size is 3 mm or below; then, adding the crushed anthracite coal powder, the crushed fat coal powder and solid powder of the sodium bentonite, calcium oxide, corn pregelatinized starch, silicon dioxide, sodium chloride and sodium dodecyl benzene sulfonate into a stirrer by proportion for uniform mixing, adding the water by proportion, uniformly mixing the components, and performing standing to obtain a mixed material; finally, pressing the mixed material for shaping, and drying the mixed material to obtain a briquette product. According to the civil briquette prepared by means of the method, the strength of the briquette can be significantly enhanced, the sulfur fixing rate is increased, and the SO2 emission during combustion is reduced.

Description

technical field [0001] The invention relates to the technical field of coal product processing, in particular to a civil high-strength sulfur-fixing briquette and a preparation method thereof. Background technique [0002] With the increasing level of environmental pollution in recent years, especially the serious negative impact of smog on people's health and life and production, people's attention to environmental protection has gradually increased. [0003] As the primary energy source in my country, coal plays a key role in the process of national production and social development. In the process of coal industry utilization, such as thermal power generation and coking, there are strict control standards and mature treatment of pollutants generated in the production process The equipment can basically meet the emission standards. However, in the process of civil coal combustion, due to the wide distribution and scattered distribution, especially in rural areas, effective...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/04C10L5/14C10L9/10
CPCC10L5/04C10L5/14C10L9/10C10L2290/24C10L2290/28C10L2290/30C10L2290/32
Inventor 路广军申巧杨凤玲王宝凤程芳琴
Owner SHANXI UNIV
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