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Corrosion-protection stopping agent for preventing spontaneous combustion of coal and preparation method thereof

A technology of coal spontaneous combustion and chemical inhibitor, which is applied in dust prevention, mining equipment, earth drilling and mining, etc., to achieve the effect of good chemical resistance, convenient source and convenient production

Pending Publication Date: 2016-05-04
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of anti-corrosion inhibitor for preventing spontaneous combustion of coal and its preparation method in view of the problems existing in the existing inorganic salt inhibitor

Method used

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  • Corrosion-protection stopping agent for preventing spontaneous combustion of coal and preparation method thereof
  • Corrosion-protection stopping agent for preventing spontaneous combustion of coal and preparation method thereof
  • Corrosion-protection stopping agent for preventing spontaneous combustion of coal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The anticorrosion inhibitor contains an aqueous solution of 0.08wt% magnesium chloride, 0.03wt% manganese chloride, 0.01wt% sodium nitrite and 0.03wt% sodium gluconate.

[0018] The preparation method of the inhibitor is as follows: Weigh 8g of magnesium chloride, 3g of manganese chloride, 1g of sodium nitrite and 3g of sodium gluconate, add them into 10KG of water, and stir until they are completely dissolved.

Embodiment 2

[0020] The anti-corrosion inhibitor contains an aqueous solution of 2wt% magnesium chloride, 0.1wt% manganese chloride, 0.05wt% sodium nitrite and 0.1wt% sodium gluconate.

[0021] The preparation method of this inhibitor is the same as in Example 1.

Embodiment 3

[0023] The anti-corrosion inhibitor contains an aqueous solution of 0.2wt% magnesium chloride, 0.05wt% manganese chloride, 0.01wt% sodium nitrite and 0.06wt% sodium gluconate.

[0024] The preparation method of this inhibitor is the same as in Example 1.

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Abstract

The invention aims at solving the problem that an existing inorganic salt stopping agent exists, provides a corrosion-protection stopping agent for preventing spontaneous combustion of coal and belongs to the technical field of coal mines. The stopping agent is an aqueous solution containing magnesium chloride, manganese chloride, sodium nitrite and sodium gluconate. Preferably, the stopping agent is the aqueous solution containing 0.08-2% by mass concentration of the magnesium chloride, 0.03-0.1% by mass concentration of the manganese chloride, 0.01-0.05% by mass concentration of the sodium nitrite and 0.03-0.1% by mass concentration of the sodium gluconate. A preparation method of the corrosion-protection stopping agent comprises the steps of weighing the magnesium chloride, the manganese chloride, the sodium nitrite and the sodium gluconate in proportion, adding them into water and performing stirring till they are completely dissolved. The raw materials of the corrosion-protection stopping agent are convenient to obtain, and the corrosion-protection stopping agent is convenient to prepare and good in stopping effect and has corrosion-protection capability.

Description

technical field [0001] The invention belongs to the technical field of coal mines, and in particular relates to an anti-corrosion inhibitor for preventing spontaneous combustion of coal and a preparation method thereof. Background technique [0002] Coal spontaneous combustion fire is one of the main disasters that threaten the safety of coal mine production. Therefore, the problem of mine fire prevention and extinguishing has always been the focus of scientific research. Spraying and pouring inhibitor is a kind of fire prevention and extinguishing measure for coal spontaneous combustion. It has important theoretical and practical significance for controlling and reducing the occurrence of major vicious accidents such as mine fires and gas explosions, especially for improving the prevention of internal fires in mines. At the same time, this measure also has broad application prospects in coal processing, storage and transportation. [0003] The spontaneous combustion of coa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/06
CPCE21F5/06
Inventor 王雪峰邓汉忠高飞郝朝瑜邓存宝王继仁姚立洪
Owner LIAONING TECHNICAL UNIVERSITY
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