Cutting seam cartridge and axial decoupling combined charge step deep hole smooth blasting device

Abstract

The invention relates to a cutting seam cartridge and axial decoupling combined charge step deep hole smooth blasting device. The cutting seam cartridge and axial decoupling combined charge step deep hole smooth blasting device comprises a plurality of charge pipe standard knots, and pipe openings of the charge pipe standard knots are sequentially connected to form a blast pipe; trays used for carrying an explosive are arranged at the connection parts of the adjacent charge pipe standard knots; a base is arranged at one end of the blast pipe; a top cover is arranged at the other end of the blast pipe; through holes for allowing a detonating cord to pass through are formed in the tray surfaces of the trays; the detonating cord sequentially upwards penetrates through the through holes in the trays from the base and is led out from a through hole formed in the top cover of the blast pipe; and cracks are further formed in the trays. According to the cutting seam cartridge and axial decoupling combined charge step deep hole smooth blasting device, the effective utilization rate of the explosive can be increased, the effect of the rock complex geological environment on charge is weakened, an explosion gas is prevented from overflowing too early, the rock breaking time of the explosion gas is prolonged, safety and blast effects are improved, blast vibration harm is controlled, and construction and excavation cost is reduced.

Description

technical field [0001] The invention relates to the technical field of blasting charge devices, in particular to a charge step deep hole smooth surface blasting device combined with slit charges and axial non-coupling. Background technique [0002] With the advancement of drilling machinery and the improvement of the ability of excavating machinery to excavate earth and rocks, step blasting has moved forward to deep hole smooth blasting. Due to the uncertainty of geological conditions, complex geological structures such as faults, joints, and karst caves may be encountered in the process of step deep hole blasting, and there are sudden situations of overcharging and dropping of explosives during the charging process. During the drilling and forming process, groundwater and rain may be encountered, resulting in water accumulation at the bottom of the blast hole, but it is difficult to clean due to the depth of the hole, which affects the blasting effect and quality of explosi...

AI Technical Summary

Problems solved by technology

However, at present, explosives and detonating cords are generally bound on bamboo chips to make a string, and then put into the drill hole. During the implementation process, many field operators are required to participate in the binding, and the charging time is long, and it is easy to appear during the charging process. The bamboo chips and the detonating cord are twisted, the operation process is more dangerous

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