A kind of temperature-sensitive explosive cell coat inhibitor and preparation method thereof

Abstract

A temperature-sensitive explosive cell coat inhibitor and a preparation method thereof belong to the technical field of coal mine goaf safety prevention and control, and can solve the shortcomings of existing inhibitors such as short service life, poor stability, and strong corrosiveness, and the temperature-sensitive cell coat resistance The inhibitor has the disadvantage that the production process is relatively complicated. First, a drill hole is drilled into the aftercoat shell, and the mixed solution of reactant A and inhibitor is injected from the drill hole, and then a small ball wrapped with paraffin wax is added to reactant B, and finally Seal the holes with melted sticky plastic. When the temperature of the coal mine goaf rises to the critical temperature of the coal, the paraffin inside the spheroid melts and reacts to generate carbon dioxide gas and salt solution, and the generated saline solution is an inhibitor solution; the generated carbon dioxide gas increases The pressure breaks through the spherical shell, and the inhibitor solution is completely released, and the gas is an inert gas, which reduces the concentration of oxygen and inhibits spontaneous combustion of coal. The invention has a simple structure and is easy to operate, and can efficiently produce and process cell-coated inhibitors.

Description

technical field [0001] The invention belongs to the technical field of safety prevention and control of coal mine gobs, and in particular relates to a temperature-sensitive blasting cell inhibitor and a preparation method thereof. Background technique [0002] Coal is the main part of my country's energy, and currently accounts for 70% to 75% of my country's primary energy production and consumption structure. It is estimated that by 2050, the proportion of coal will not be less than 50%. my country's coal mining is dominated by underground mining, and its output accounts for 97% of the total coal output. This is also the main reason for the large number of coal mining enterprises and institutions and the total coal production in my country. The safe, stable and efficient development of the coal industry is crucial to the development of my country's energy industry. my country's coal mine accidents are more than four times the total number of coal mine deaths in the world's...

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Problems solved by technology

[0004] The present invention aims at the disadvantages of existing inhibitors such as short life, poor stability, strong corrosion, etc., and the disadvantages that the temperature-sensitive cell coat inhibitor has a relatively complicated manufacturing process; it provides a temperature-sensitive burst cell coat inhibitor and its preparation Method, the present invention proposes a new cell-coated inhibitor gas expansion and bursting technology, only drilling one hole can reduce the process steps, the strength is also significantly improved compared with the previous one, and the inhibitor can cover a wider range and the inhibitor can be dispersed evenly , to prevent the accumulation of heat, a certain thickness of the new coating inhibitor can fully prevent the spontaneous combustion of coal

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