A kind of blasting charge method

Abstract

The invention discloses a blasting explosive filling structure and explosive filling method. The blasting explosive filling structure comprises a blasting explosive column and sealing soil, a blast hole is filled with the blasting explosive column and backfilled with the sealing soil, the blasting explosive column comprises explosive bag sections and at least two blasting explosive bags, the explosive bag sections are arranged in a staggered manner, a plurality of explosive bags are arranged along the length direction of the blast hole to form the explosive bag sections, the explosive bags comprise explosive bag bodies and roll-shaped explosive, the explosive bag bodies are filled with the roll-shaped explosive, and blasting explosive bags comprise the explosive bags, nonel detonators and nonel tubes. The explosive filling method includes the steps: firstly, preparing the explosive bags; secondly, determining the number of the blasting explosive bags, and preparing the blasting explosive bags; thirdly, placing the blasting explosive column; fourthly, backfilling the blast hole. According to the blasting explosive filling structure, the blasting explosive column is divided into a plurality of explosive bags, the structure is convenient and rapid in construction, simple and low in labor intensity, needed labor is less, the explosive bags are placed into the blast hole one by one, the blasting explosive column is simultaneously assembled and placed, construction steps are decreased, construction time is shortened, and damage to the nonel tubes is effectively avoided.

Description

Technical field [0001] The invention belongs to the technical field of blasthole blasting, and particularly relates to a blasting charging method. Background technique [0002] Mining companies are mostly located in mountainous areas and often carry out blasting operations. The initial blasting operations start from the top of the mountain. Most of the mountainous areas have steep terrain and many work sites cannot be reached by mechanized charging equipment. The current common construction method is to use small diameter rolls. For the explosives of rock-like emulsions, boxes of explosives are manually transported from the foot of the mountain to the top of the mountain for charging. The original blasting charge method mainly adopts the bamboo strip winding method. The bamboo strip winding method uses a wide fixed belt to wind the rolled explosive on the bamboo slice to make a whole blasting charge column, and then the processed blasting charge column is slowly placed manually ...

AI Technical Summary

Problems solved by technology

[0003] When the bamboo sheet winding method is used for operation, a lot of bamboo sheets and wide fixing belts are used, and the cost of construction materials is extremely high; due to manual binding and winding processing, more labor is required, resulting in a sharp increase in labor costs during construction; the construction procedure is complicated , it takes a long time, resulting in a long blasting operation time; when the charge is inserted into the hole, because the processed charge is longer and heavier, and the artificially bound charge roll is irregular, it is difficult to enter the hole and it is easy to get stuck, which is easy to cause detonation Tube failure, there is a blasting safety hazard

Images