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Preparation method of hydrotalcite-like compound-based powder explosion suppressant

A hydrotalcite-based, explosion-suppressing agent technology, which is applied in mining equipment, earthwork drilling, safety devices, etc., can solve the problems of environmental pollution, insufficient adsorption capacity of explosion energy, poor explosion-proof performance, etc., and achieve the goal of improving adsorption activity. Effect

Inactive Publication Date: 2018-11-20
FOSHAN LINGCHAO NEW MATERIAL CO LTD
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Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a kind of hydrotalcite-based powder explosion suppression for the problems that most of the traditional solid powder explosion suppression materials have poor explosion suppression performance, insufficient ability to absorb explosion energy and easy to cause environmental pollution. The preparation method of the agent

Method used

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  • Preparation method of hydrotalcite-like compound-based powder explosion suppressant

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Effect test

example 1

[0023] Weigh silkworm cocoons and put them into a tissue grinder to crush for 15 minutes to obtain crushed silk cocoons, soak the crushed silk cocoons with a dopamine solution with a mass fraction of 1% for 30 minutes, filter after the immersion, and separate to obtain filter residues, which are pretreated silk cocoons; In terms of parts, 15 parts of magnesium nitrate, 40 parts of aluminum nitrate, 20 parts of zinc nitrate and 200 parts of deionized water were mixed for 10 minutes to obtain a mixed solution, and the mixed solution and the above-mentioned pretreated silkworm cocoons were mixed in a mass ratio of 10:1. Put into the ultrasonic oscillator and react with the frequency oscillation of 25kHz for 1h to obtain the pre-reaction solution; the pre-reaction solution and the mass fraction are 30% ammonia and potassium carbonate to obtain the reaction solution after mixing the mass ratio of 13:4:1, and the reaction Liquid, sodium thiosulfate and potassium citrate are mixed in ...

example 2

[0025]Weigh silkworm cocoons and put them into a tissue grinder to crush for 18 minutes to obtain crushed silk cocoons, soak the crushed silk cocoons with a dopamine solution with a mass fraction of 1% for 35 minutes, filter after the immersion, and separate and obtain filter residues, which are pretreated silkworm cocoons; In terms of parts, 18 parts of magnesium nitrate, 45 parts of aluminum nitrate, 22 parts of zinc nitrate and 250 parts of deionized water were mixed for 13 minutes to obtain a mixed solution, and the mixed solution and the above-mentioned pretreated silkworm cocoons were mixed in a mass ratio of 10:1. Put into the ultrasonic oscillator and react with the frequency oscillation of 28kHz for 1h to obtain the pre-reaction solution; the pre-reaction solution and the mass fraction are 30% ammonia and potassium carbonate to obtain the reaction solution after mixing the pre-reaction solution with a mass ratio of 13:4:1, and the reaction liquid, sodium thiosulfate an...

example 3

[0027] Weigh silkworm cocoons and put them into a tissue grinder to crush them for 20 minutes to obtain crushed silk cocoons, soak the crushed silk cocoons with a dopamine solution with a mass fraction of 1% for 40 minutes, filter after the immersion, and separate and obtain filter residues, which are pretreated silk cocoons; In terms of parts, 20 parts of magnesium nitrate, 50 parts of aluminum nitrate, 23 parts of zinc nitrate and 300 parts of deionized water were mixed for 15 minutes to obtain a mixed solution, and the mixed solution and the above-mentioned pretreated silkworm cocoons were mixed in a mass ratio of 10:1. Put into the ultrasonic oscillator and react with the frequency of 30kHz for 2h to obtain the pre-reaction solution; the pre-reaction solution and the mass fraction of 30% ammonia and potassium carbonate are mixed to obtain the reaction solution in a mass ratio of 13:4:1, and the reaction Liquid, sodium thiosulfate and potassium citrate are mixed in a mass ra...

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Abstract

The invention relates to a preparation method of a hydrotalcite-like compound-based powder explosion suppressant, and belongs to the technical field of explosion suppressant preparation. The preparation method comprises the following steps: taking silkworm cocoons as a raw material; putting the silkworm cocoons into a grinder to carry out grinding and soaking the grinded silkworm cocoons by usingdopamine solution; mixing the soaked silkworm cocoons with a metal sale solution; adding a complexing agent to carry out a hydrothermal reaction; calcining a product obtained via the hydrothermal reaction to obtain a hydrotalcite-like compound matrix; and finally mixing the hydrotalcite-like compound matrix with metallothionein and urea so as to finally obtain the powder explosion suppressant. Theobtained powder explosion suppressant is good in explosion suppression performance and extremely strong in explosion energy adsorption capability, and has a wide application prospect.

Description

technical field [0001] The invention relates to a preparation method of a hydrotalcite-like powder antiknock agent, belonging to the technical field of antiknock agent preparation. Background technique [0002] Among all kinds of production accidents, fire and explosion accidents are the most serious, so they are the most concerned by people. Although fire and explosion are two types of accidents, there is a certain relationship between them. Explosion accidents are destructive, cause heavy losses, and easily cause casualties and damage to equipment and buildings. Therefore, it is necessary to take some technical measures for fire prevention and explosion protection to achieve the purpose of explosion protection, explosion isolation, and explosion suppression. Mine gas explosions seriously threaten the safe production of coal mines, and the existing materials and technologies for controlling gas explosions cannot effectively control the occurrence of gas disasters. Gas exp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/08E21F5/12
CPCE21F5/08E21F5/12
Inventor 裘友玖林茂梅
Owner FOSHAN LINGCHAO NEW MATERIAL CO LTD
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