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Preparation method of high-efficiency inhibitor for coal mine

An inhibitor and high-efficiency technology, which is applied in the field of preparation of high-efficiency inhibitors for coal mines, can solve the problems of low inhibition efficiency and low inhibition efficiency of high-efficiency inhibitors, and achieve improved inhibition efficiency and inhibition effect Improve and ensure the effect of coal mine safety

Active Publication Date: 2019-06-25
日照市莒县鑫友矿业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the inhibitory efficiency of high-efficiency inhibitors used in coal mines is not high in the industry at present, the purpose of the present invention is to provide a preparation method of efficient inhibitors used in coal mines, so as to effectively overcome the problem of low inhibitory efficiency and successfully Reduce and avoid mine fires caused by spontaneous combustion of coal oxidation. At the same time, the inhibitor is easy to produce and process, low in production cost, and can be produced on a large scale. It is very industrially feasible

Method used

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  • Preparation method of high-efficiency inhibitor for coal mine
  • Preparation method of high-efficiency inhibitor for coal mine
  • Preparation method of high-efficiency inhibitor for coal mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A high-efficiency inhibitor for coal mines consists of the following components:

[0032] Compound (I) 2.5wt%;

[0033] Bis(2,3-dibromopropyl)fumarate 7.5wt%;

[0034] Inorganic flame retardant 10wt%;

[0035] Surfactant 10wt%;

[0036] Sodium percarbonate 10wt%;

[0037] the rest is water;

[0038] Wherein, the inorganic flame retardant is magnesium chloride, and the surfactant is sorbitan fatty acid ester;

[0039] Wherein, the structural formula of compound (I) is as follows:

[0040]

[0041] The preparation process of this inhibitor is as follows:

[0042] A. Mix inorganic flame retardant, surfactant, sodium percarbonate and water in a certain proportion;

[0043] B. Filter the solution with a 1000-mesh filter, cool and let it stand;

[0044] C. Add the solution into the reactor and heat it. The heating temperature is 60° C. and the heating time is 45 minutes;

[0045] D. Stir and add a certain amount of organic flame retardant at the same time, the sti...

Embodiment 2

[0052] The mass fraction of compound (I) and bis(2,3-dibromopropyl) fumarate in Example 1 is replaced by 5wt% and 5wt% respectively, and all the other process parameters, process steps, assay methods and implementation Example 1 is exactly the same. The averaging rate results of Example 2 are listed in Table 2.

Embodiment 3

[0054] The massfraction of compound (I) and two (2,3-dibromopropyl) fumarate in embodiment 1 is changed to 7.5wt% and 2.5wt% respectively, all the other process parameters, process steps, assay method Exactly the same as Example 1. The average resistivity results of Example 3 are listed in Table 2.

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Abstract

The invention relates to a preparation method of a high-efficiency inhibitor for a coal mine. The inhibitor is prepared from the following components in percentage by weight: 1-10% of inorganic flameretardants, 5-15% of an organic flame retardant, 5-10% of surfactants, 1-10% of sodium percarbonate, and the balance of water, wherein the inorganic flame retardants are one or more of magnesium chloride and calcium chloride, and the surfactants are one or more of sorbitan aliphatic ester and polyoxyethylene sorbitan aliphatic ester. According to the preparation method of the high-efficiency inhibitor for the coal mine, the problem of low inhibition efficiency of current inhibitors for coal mines in the industry is solved, and the provided inhibitor can significantly improve the inhibition efficiency and effectively ensure the safety of the coal mine.

Description

technical field [0001] The invention relates to a preparation method of a high-efficiency inhibitor for coal mines. Background technique [0002] As an important energy base for my country's economic development, coal accounts for about 70% of the primary energy structure. In recent years, with the improvement of my country's coal mine management system and the gradual improvement of miners' safety awareness, the number of accidents and deaths in my country's coal mine accidents showed a gradual downward trend from 2002 to 2014, but compared with other foreign countries, my country The coal mine problem is still serious. Mine fire is an important manifestation of coal oxidation and spontaneous combustion. It is the most hidden and difficult to control among all coal mine accidents. The toxic and harmful gases produced at the same time have caused serious pollution to the environment and pose a great threat to coal mine safety. It may even cause secondary disasters such as g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 李洪芳
Owner 日照市莒县鑫友矿业有限公司
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