Carbon dioxide mining device

Abstract

The invention discloses a carbon dioxide mining device. The carbon dioxide mining device comprises an energy release head, a fixed pressure energy release sheet, a main pipe and a filling head, wherein the energy release head and the filling head are respectively fastened at the two ends of the main pipe; a filling passage and an ejector pin are arranged on the filling head; the filling passage is led to a main pipe filling chamber, and the ejector pin is used for opening and closing the filling passage; an energy release passage is formed in the energy release head; one end of the energy release passage is led to the main pipe filling chamber; the other end of the energy release passage is led outside the carbon dioxide mining device; the fixed pressure energy release sheet is arranged between the energy release passage of the energy release head and the main pipe filling chamber in a sealed way; a heating device is arranged in the main pipe filling chamber; and the fixed pressure energy release sheet is fractured when liquid carbon dioxide filled into the main pipe filling chamber is heated, gasified and expanded to a certain pressure by the heating device. The carbon dioxide mining device disclosed by the invention can be used instead of common detonators and explosives in mine mining; gas explosion caused by fire explosion is avoided and safety production of the mine is also achieved; and a coal body can be also pre-cracked in the gas mining process, so that the air permeability of a coal layer is effectively improved, and the gas mining efficiency of the coal layer is increased.

Description

technical field [0001] The invention relates to a blasting device, in particular to a carbon dioxide extractor. Background technique [0002] Explosive blasting has experienced a history of thousands of years, and it has been used so far because there is no alternative good method. It is still one of the methods of coal mining at present. Explosive blasting is powerful and fierce, and it is a typical open flame blasting. However, there are many defects in open flame blasting, and there are high requirements for use conditions, use environment, daily management, etc., especially in coal mines. Many coal mine gas accidents are caused by open flame explosions. At the same time, other cases of accidental explosions due to explosives also occurred from time to time, which affected social stability and caused economic losses. [0003] Carbon dioxide gas blasting is based on the principle that liquid carbon dioxide gasifies and expands rapidly when heated, and then works on the ...

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Problems solved by technology

At the same time, other cases of accidental explosions due to explosives also occurred from time to time, which affected social stability and caused economic losses.

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