Pre-splitting device of ultra-deep hole of rock mass in mine based on crack agent

Abstract

The invention discloses a pre-splitting device of an ultra-deep hole of a rock mass in a mine based on a crack agent, and belongs to the field of pre-splitting of the rock mass in the mine. Medicamentfilling tubes, medicament connecting tubes and a conducting wire for connecting an exciter are designed, the medicament filling tubes are internally and separately filled with the crack agent and anexciting agent, connect barb locking devices are arranged in the medicament connecting tubes, and the medicament filling tubes are connected through the medicament connecting tubes. The connect barb locking devices realize the connection of medicine rolls of the crack agent and the exciting agent and the tight connection of the conducting wire through a artful groove locking structure and a turn-lock clasp connecting structure, the whole rigidity of the medicament filling tubes is realized, and a certain flexibility exists in joints so as to facilitate filling of medicament in pre-splitting ofthe ultra-deep hole; and the conducting wire integrally penetrates during the connection process to avoid to be damaged or occurring of a connecting fault, the pre-splitting device is integrally connected in series to form an exciting loop through connecting exciter circuit in the connecting process of the medicine rolls, the problem of conducting wire in series in the long distance medicine filling process is solved, and a reliable condition is provided for safety promotion of a working face.

Description

technical field [0001] The invention relates to the field of pre-cracking of mine rock mass, in particular to an ultra-deep hole pre-cracking device of mine rock mass based on a cracking agent. Background technique [0002] In the process of mine safety production, drilling is often used to pre-split and loosen the coal rock mass. For high-gas mines, before the working face advances, pre-split drainage must be used on the coal body in the advanced working face so that the gas will not exceed the limit during the mining process. Sometimes the length of the drainage drilling is 200-300m deep. Existing mining emulsion explosives cannot realize such ultra-deep hole charging and pre-splitting blasting. Others such as CO2 blasting or hydraulic fracturing, or insufficient power, cannot achieve the effect, or are caused by complex processes and labor-intensive workers. Unable to operate, unable to escort the safe production of the mine. Contents of the invention [0003] In orde...

AI Technical Summary

Problems solved by technology

For high-gas mines, before the working face advances, pre-split drainage must be used on the coal body in the advanced working face so that the gas will not exceed the limit during the mining process. Sometimes the length of the drainage drilling is 200-300m deep. Existing mining emulsion explosives cannot realize such ultra-deep hole charging and pre-splitting blasting. Others such as CO2 blasting or hydraulic fracturing, or insufficient power, cannot achieve the effect, or are caused by complex processes and labor-intensive workers. Unable to operate, unable to escort the safe production of the mine

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