Blasting rock cracking system and blasting rock cracking method

Abstract

The embodiment of the invention discloses a blasting rock cracking system and a blasting rock cracking method. The blasting rock cracking system comprises a phase change device, a heating device and a control device, wherein the phase change device comprises a liquid storage pipe, a liquid injection electromagnetic valve and an energy release electromagnetic valve, the heating device comprises a superconductive heating pipe and a high-frequency heater, the superconductive heating pipe is arranged in the liquid storage pipe, the high-frequency heater is electrically connected with the superconductive heating pipe, the control device comprises a power frequency converter and a power bus, the phase change device forms a phase change pipe with adjustable pressure relief strength, and the heating device forms a high-frequency heating module with adjustable heating power. The controllable high-frequency heating double-layer superconductive heating pipe is used for replacing a traditional electric heating mode, simultaneous gasification of all liquid CO2 in the liquid storage pipe is achieved, the blasting strength of the liquid CO2 is sharply improved, meanwhile, discontinuity of traditional operation is avoided through the combined action of the liquid injection electromagnetic valve and the energy release electromagnetic valve, the instability and uncontrollability of pressure relief are avoided, and intelligent control over cluster blasting pipes can be achieved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of blast rock cracking, and in particular to a blast rock cracking system and a blast rock cracking method. Background technique [0002] Existing CO 2 Blasting means that when the micro current passes through the high thermal conductivity rod, high temperature will break through the safety film, and the liquid carbon dioxide will be vaporized in an instant, and the rapid expansion will generate a high-pressure shock wave, which will automatically open the pressure relief valve. cause the rock to crack. During this process, no sparks or toxic and harmful gases are generated, and the noise is lower than that of explosive blasting. Due to the advantages of environmental protection, high safety, low noise, fast approval, and the ability to effectively replace explosive blasting, this method is widely used in high gas or coal and gas outburst coal seam mining and subway foundation pit...

AI Technical Summary

Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a blast rock cracking system and a blast rock cracking method to solve the problem of CO in the prior art. 2 There is the problem of above-mentioned deficiency in blasting method

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