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Methods of Improving Blasting Efficiency of Explosives

A technology of explosives and explosive packs, which is applied in the field of blasting, can solve the problems that the explosive energy cannot be concentrated in one direction to the side, the explosives are semi-exploded or burned, and cannot be detonated normally, and achieves good blasting direction controllability, long duration, and saving effect of explosives

Active Publication Date: 2017-08-25
王康太
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Problems solved by technology

In this method, the position of the detonating cap in the charge is set at the axis of the forward and reverse ends of the grain, the detonator is detonated, and the detonation wave is transmitted from the detonating end to the other end along the axis of the grain, and the explosion shock wave travels from the axis to the other end. The center spreads to the surroundings, and the explosion energy cannot be concentrated in one direction to the side. It is easy to cause the detonator and explosives in the adjacent blasthole to be squeezed by the explosion, sometimes causing the detonator to be squeezed, and the explosives to be squeezed and hardened, unable to detonate normally, becoming Half explosion or combustion of hard explosives is one of the causes of underground gas accidents

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  • Methods of Improving Blasting Efficiency of Explosives
  • Methods of Improving Blasting Efficiency of Explosives
  • Methods of Improving Blasting Efficiency of Explosives

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Embodiment Construction

[0026] Explosions all have the same law, that is, most of the energy, shock wave, gas, etc. during the explosion take the starting point of the explosion as the direction of progress.

[0027] Three blasting methods:

[0028] 1. The method of fully advancing blasting, referred to as advancing charge or advancing blasting, is to place the detonator at the forefront of the explosive package. The detonation point of the explosive in front of the detonator is not covered by explosives, and there is no relative collision of the explosive shock waves at both ends of the detonation point and the surrounding explosives, so that the explosion shock behind the detonation point smoothly rushes to the medium or object in front of the detonation point to play a blasting role.

[0029] 2. The full retreat blasting method, referred to as retreat charge or retreat blast, is to place the detonator at the end of the explosive package. It is similar to the forward charge blasting in the regulat...

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Abstract

The invention relates to the technical field of blasting, in particular to a method capable of improving the blasting efficiency of explosives. The method aims to increase the utilization ratio of the blasting energy of the explosives. According to the method, the detonating point of the explosives is set to be close to the position of a blasting target as much as possible so that the blasting power can be maximized. Shock waves generated by the detonating point in the blasting process can be concentrated to collect energy, hardly diffuse outwards, last for a long time and are high in utilization ratio. Blasting products hardly fly off. The controllability of the blasting direction is good, the safety is high, and more explosives can be saved.

Description

technical field [0001] The invention relates to the technical field of blasting, in particular to a method capable of improving the blasting efficiency of explosives so as to improve the utilization rate of explosive energy. Background technique [0002] In blasting operations in industries such as coal mines, the original charging method is still in use today. In this method, the position of the detonating cap in the charge is set at the axis of the forward and reverse ends of the grain, the detonator is detonated, and the detonation wave is transmitted from the detonating end to the other end along the axis of the grain, and the explosion shock wave travels from the axis to the other end. The center spreads around, and the explosion energy cannot be concentrated in one direction to the side. It is easy to cause the detonators and explosives in the adjacent blasthole to be squeezed by the explosion, sometimes causing the detonators to be squeezed, and the explosives to be s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D3/00
Inventor 王康太
Owner 王康太