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Device for controlling multi-point detonation transmission sequentiality of detonating cord

A detonation transfer sequence and detonating cord technology, which is applied in the field of devices for controlling detonation cord multi-point detonation transfer, can solve problems such as detonation transfer sequence, and achieve the effect of solving disorder or large time jitter

Pending Publication Date: 2020-09-11
XIAN TECHNOLOGICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a device for controlling the sequence of multi-point detonation transmission of the detonating cord, which solves the problem of the sequence of detonation transmission during multi-point detonation

Method used

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  • Device for controlling multi-point detonation transmission sequentiality of detonating cord
  • Device for controlling multi-point detonation transmission sequentiality of detonating cord

Examples

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Effect test

Embodiment 1

[0025] In the present embodiment, aluminum film (Al) is selected as the metal bridge film;

[0026] according to figure 1 The output point of the plane shown above is set to connect positive electrode 1 and positive electrode 3 to the positive pole of the detonation network, and negative electrode 2 and negative electrode 4 to connect to the negative pole of the detonation network. The delay of the three boosters between the single row of metal bridge membranes can be ignored , only by changing the delay between the first row of metal bridging membranes 7, the second row of metal bridging membranes 8, and the third row of metal bridging membranes 9 to meet the requirements. The sequential detonation of the three rows can be achieved by changing their resistivity. In this implementation case, the metal material and the explosion transfer length of the three rows are the same, so only the metal material length of each row needs to be considered. Due to the scale effect of the ...

Embodiment 2

[0028] In this embodiment, the metal bridge film is selected from copper thin film (Cu), aluminum thin film (Al) and chromium thin film (Cr)

[0029] according to figure 1 The output point of the plane shown above is set to connect positive electrode 1 and positive electrode 3 to the positive pole of the detonation network, and negative electrode 2 and negative electrode 4 to connect to the negative pole of the detonation network. The delay of the three boosters between the single row of metal bridge membranes can be ignored , only by changing the delay between the first row of metal bridging membranes 7, the second row of metal bridging membranes 8, and the third row of metal bridging membranes 9 to meet the requirements. The sequential detonation of the three rows can be achieved by changing their resistivity. In this embodiment, the length of each row of metal materials is controlled to be constant, the first row of metal is set to copper (Cu), and the resistivity is 1.678...

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Abstract

The invention discloses a device for controlling multi-point detonation transmission sequentiality of a detonating cord. The device comprises a base plate, a copper-clad plate and an electrode plug are arranged on the base plate, multiple rows of metal bridge membranes are arranged in the middle of the base plate, and are connected in sequence to form a detonation network, multiple booster explosives are arranged on each row of metal bridge membranes, a positive electrode and a negative electrode are arranged on the base plate, and are connected with the center of a detonating network, the different rows of metal bridge membranes select different metal materials or under the condition that the metal materials are certain, different bridge film thicknesses are selected, through the differences of specific resistance of the metal bridge membranes, the sequentiality detonation transmission can be achieved, through the non-linear distribution characteristics of specific resistance under the micron scale, the metal membrane material, thickness and length are controlled to achieve multi-point detonation transmission sequentiality of the detonating cord, the detonation transmission sequentiality is manually controllable, the detonation transmission manner is intelligent, and the disorder of the prvious detonation transmission can be solved.

Description

technical field [0001] The invention belongs to the field of multi-point detonation transmission of detonating cord, and in particular relates to a device for controlling the multi-point detonation transmission of detonating cord. Background technique [0002] With the application and development of controlled blasting technology, especially the demand for multi-point blasting technology in mines and buildings, the connection mode of blasting is becoming more and more complicated, the multi-point initiation technology has been widely used, and the research on blasting network is also deepening. . For scenarios that require precise control of the detonation sequence, the time jitter in the traditional implementation method is on the order of ms. Prior to this, the main factors affecting the detonation output sequence of multiple detonation transmission lines were the detonation velocity of charge, the deviation of detonation velocity during the detonation transmission proces...

Claims

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Application Information

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IPC IPC(8): F42D1/05
CPCF42D1/05
Inventor 程军霞曹妍王可暄李蛟吴慎将王佳李党娟王佳超
Owner XIAN TECHNOLOGICAL UNIV
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