Outer-blasthole time-delay intelligent detonation network system and detonation method thereof

Abstract

The invention discloses an outer-blasthole time-delay intelligent detonation network system and a detonation method thereof. An intelligent exploder and a plurality of groups of time-delay network systems which are connected with each other are arranged, and a PLC control unit is used for setting time-delay time and sending a detonating instruction, so that the combination of a time-delay network wire slot, the intelligent exploder and a traditional detonating device is realized; and the implementation reliability of the millisecond blasting outer-blasthole time-delay blasting network is improved. Besides, the delay network wire slot is formed by grooving on a rock wall through a grooving machine, is used for wiring connection of the explosion propagation equipment and connecting pieces, and is filled with a flame-retardant filler, so that damage of front-row blasting shock waves to other subsequent blasting networks can be prevented. By means of the mode, the number of operation faces of one-time millisecond blasting can be greatly increased, the application range of millisecond blasting in the fields of residual ore recovery, shock absorption blasting or blasting without space limitation and the like is expanded, meanwhile, the blasting cost is reduced, the safety management prevention and control risk is reduced, and the blasting implementation effect is improved.

Description

technical field [0001] The invention relates to the technical field of mining blasting, in particular to a time-delay intelligent initiation network system outside a hole and an initiation method thereof. Background technique [0002] In the field of mining, the blasting of mines has always been an extremely important part. Blasting techniques include many types, among which differential blasting is one of the most widely used blasting techniques. Micro-differential blasting has the advantages of improving blasting effect, effectively controlling blasting shock waves, and reducing blasting vibration, noise, flying stones and other hazards. The blasting delay technology is divided into two types: inside-hole delay and outside-hole delay according to the layout form. Among them, the delay network in the hole has the characteristics that the blasting network should not be affected by the explosion of the surrounding blastholes. It is widely used, but its delay time is easily a...

AI Technical Summary

Problems solved by technology

However, the cost of this kind of delay detonator is too high, it is a one-time consumption product, and the delay time is less than or equal to 2000ms, and it is only promoted in open-pit mines. Due to more restrictions on use conditions, there are few successful cases in underground mines.

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