Non-stop drilling slag protection blasting cartridge used outside drill rod in sleeving mode

A technology of blasting barrels and drill pipes, which is applied in the field of blasting and can solve problems such as reduced blasting effects and reduced reaction forces

Pending Publication Date: 2021-02-26
李天北
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If plugging with cement clay, due to the high viscosity, the cement clay cannot be sent to the depth of the blast hole and is in close contact with the explosive, so it can only be blocked at the end of the blast hole, so that there is a gap between the explosive and

Method used

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  • Non-stop drilling slag protection blasting cartridge used outside drill rod in sleeving mode
  • Non-stop drilling slag protection blasting cartridge used outside drill rod in sleeving mode

Examples

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Embodiment 1

[0032] Please refer to figure 1 with figure 2 , figure 1 Shown is a schematic diagram of the cross-sectional structure of the blasting cylinder of the embodiment of the present invention; figure 2 Shown is a schematic diagram of the side view structure of the blasting cartridge body 1 according to the embodiment of the present invention.

[0033] This embodiment provides a non-stop drilling and slag protection blasting cylinder used outside the drill pipe, which includes a blasting cylinder body 1 and an ignition and detonation device 101 arranged in the blasting cylinder body 1. The blasting cylinder body 1 and the rock wall are filled with ignition and detonation devices. The explosive 102 connected to the device 101 is provided with a sealing assembly on both sides of the explosive 102 along the length direction of the blasting cartridge body 1 . The blasting cylinder body 1 is sleeved on the drill pipe 2, and fixed with the drill pipe 2 into a borehole at a certain de...

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PUM

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Abstract

The invention provides a non-stop drilling slag protection blasting cartridge used outside a drill rod in a sleeving mode, and relates to the field of blasting. The non-stop drilling slag protection blasting cartridge used outside the drill rod in the sleeving mode is characterized by comprising a blasting cartridge body and an ignition initiation device arranged in the blasting cartridge body, wherein the space between the blasting cartridge body and the rock wall surface is filled with explosive connected with the ignition initiation device, and sealing assemblies are arranged on the two sides of the explosive in the length direction of the blasting cartridge body. According to the non-stop drilling slag protection blasting cartridge, the space between the drilling rock wall surface andthe blasting cartridge body is fully filled with the explosive, and the sealing assemblies are used for enabling the explosive to fill the closed space, so that the blasting impact acting force of theexplosive can act on the rock wall surface most comprehensively and efficiently, and then the blasting power is improved; and the slag protection blasting cartridge plays a slag protection role on the drill rod, so that the drill rod and the drilling whole form non-stop drilling blasting. The non-stop drilling slag protection blasting cartridge is simple in structure, low in use cost and convenient to popularize in a large range.

Description

technical field [0001] The invention relates to the field of blasting, in particular to a non-stop drilling and slag protection blasting tube which is used outside a drill pipe. Background technique [0002] During underground mine mining operations, eye positions are first arranged on the face of the mine, and blasting holes of a certain depth are drilled on the eye positions. Then, explosives are loaded into the holes and detonation is performed using a nonel. [0003] 1. After the blast hole is drilled, clean the blast hole, load explosives and nonel tubes, and detonate directly. At this time, a part of the energy released by the explosive after the explosion will be released in vain from the direction of the blast hole. This blasting method will greatly reduce the energy of the explosive, resulting in poor blasting effect and high cost. [0004] 2. In order to improve the blasting efficiency and make the explosives more effective, after the blastholes are drilled, clean...

Claims

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Application Information

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IPC IPC(8): F42D1/08F42D3/04
CPCF42D1/08F42D3/04
Inventor 李天北
Owner 李天北
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