S-shaped cutting seam cartridge and production method thereof

A production method and cutting technology, which is applied in blasting and other directions, can solve the problem that the crushing effect of rock mass cannot be optimally controlled, and achieve the effect of improving loading and unloading rate and reducing block rate

Inactive Publication Date: 2018-12-04
TONGLING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This scheme also cannot achieve optimal control of the crushing effect of the rock mass

Method used

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  • S-shaped cutting seam cartridge and production method thereof
  • S-shaped cutting seam cartridge and production method thereof

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Experimental program
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Effect test

Embodiment Construction

[0027] Combine below figure 1 with figure 2 , to further illustrate the present invention.

[0028] As shown in the figure, an S-shaped slotted charge includes a blasthole and a slotted tube 1 located in the blasthole, the slotted tube 1 is filled with explosives 2; the tube wall of the slotted tube 1 There are several equidistant S-shaped slits 3 on the top, and the S-shaped slits 3 are located on one side of the slit pipe. There is an S-shaped slit 3 on the slit pipe 1. At the moment of explosive blasting, a high-pressure gas jet is first generated, and then through the energy gathering of the S-shaped slit, an S-shaped water jet is formed, and then impacts the wall of the blast hole to achieve the directional fracture of a specific rock. Purpose. The S-shaped slit is located on one side of the slit tube, which can ensure that the jet formed after energy gathering is ejected according to the predetermined plan.

[0029] In order to ensure that the slit cartridge of the ...

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Abstract

The invention discloses an S-shaped cutting seam cartridge which comprises a blast hole and a cutting seam pipe located inside the blast hole. The cutting seam pipe is filled with explosive. The pipewall of the cutting seam pipe is provided with a plurality of S-shaped cutting seams at equal intervals, and the S-shaped cutting seams are located on one side of the cutting seam pipe. The S-shaped cutting seam cartridge firstly produces high-pressure gas jet instantaneously after explosion, an S-shaped water jet is formed through energy gathering of the S-shaped cutting seams, the wall of the blast hole is impacted, and the purpose of specific rock directional fracturing is achieved. From the perspective of energy gathering, the S-shaped cutting seam cartridge can achieve the S-shaped energygathering effect, the S-shaped water jet carries out crushing blasting damage on blasting rock, the rock blockness rate is reduced, the mechanical loading and unloading rate is improved, and surrounding rock is protected in the non-cutting-seam direction.

Description

technical field [0001] The invention relates to the field of energy-concentrating blasting, in particular to an S-shaped slit charge and a production method thereof. Background technique [0002] Since Sweden adopted smooth blasting in the early 1950s, many countries have also conducted a large number of experimental studies on smooth blasting. At present, smooth blasting has also been fully promoted in shaft excavation construction in our country, and has become a standard construction method. [0003] In recent decades, my country has conducted a lot of research on the mechanism of photoexplosion, charge structure of photoexplosion, detonation time difference, guiding effect, photoexplosion parameters, etc., and has developed special explosives for photoexplosion with low density, low detonation velocity, low power and low density. , ammonium-ladder explosive small-diameter rolls, and water-gel explosive small-diameter rolls were tested on-site. However, in the current mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/08F42D3/04
CPCF42D1/08F42D3/04
Inventor 谢华刚温森吴玲丽赵正信
Owner TONGLING UNIV
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