Charging device and charging method for deep hole blasting

Abstract

The invention provides a charging device and a charging method for deep hole blasting, relates to the technical field of engineering blasting, and solves the problems of discontinuous charging and difficult misfire treatment. The device comprises a plurality of charging pipes, a plurality of filling pipes, drawing ropes, rope clamps and plugging plugs, the drawing ropes penetrate through the charging pipes and the filling pipes, the rope clamps can be fixedly arranged at the ends of the charging pipes and the filling pipes or on the drawing ropes inside the charging pipes and the filling pipes, the length of the drawing ropes among the rope clamps is greater than that of the charging pipes or the filling pipes, explosives are filled in the charging pipes, stuffing is filled in the filling pipes, the charging pipes and the filling pipes are identical in structure, plugs are respectively mounted at two ends of the pipe bodies, gaskets are fixedly connected to the plugs at one ends, the diameter of through holes in the gaskets is smaller than that of the rope clamps, a detonating cord and a detonator are connected and sequentially penetrate through the charging pipe, the plugging plug is mounted at the position of an orifice of a blast hole, and a leg wire of the detonator and the drawing rope are led out of the blast hole from a wire guide groove of the plugging plug. By employing the device, operations such as charging and misfire treatment are more convenient.

Description

technical field [0001] The invention relates to the technical field of engineering blasting, in particular to a charge device and a charge method for deep hole blasting. Background technique [0002] In special deep-hole blasting operations, such as dealing with high-gas and low-permeability coal seam gas exceeding the limit in coal mining, and the problem of large-area hovering of the top coal or roof rock layer in the mining face, the top coal or roof pre-splitting blasting is used; the subway Shield tunneling through boulders or hard rock formations on the ground using deep hole pre-crushed rock blasting. Deep hole blasting has the characteristics of deep hole and large charge. The following problems are prone to occur in the charging process: (1) the charge is discontinuous, and it is difficult to completely detonate; (2) the blind shot is difficult to handle, and it is difficult to take out the explosives, detonating materials, spacers and packings loaded into the blas...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of discontinuous charge in the blast hole and the charge tube is easy to pressurize and jam in the blind blasting process, to facilitate interval charging and determine the position of charge in the blast hole, the present invention provides a blasting machine for deep hole blasting. Charge device and charge method, concrete technical scheme is as follows

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