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Electronic detonator initiation system for tunnel blasting

An electronic detonator and tunnel technology, which is applied in the field of electronic detonator detonation systems, can solve problems such as the adverse effects of engineering blasting safety and operation progress, the reduced reliability of electronic detonator detonation, and the deviation of blasting time, so as to reduce the probability of blind shots and avoid The effect of blind cannons, which is not easy to make mistakes

Inactive Publication Date: 2020-04-17
PANZHIHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use of electronic detonators, especially in tunnel blasting with dense blastholes, the reliability of electronic detonators is greatly reduced, and a large number of detonators fail to explode. Once detonated, the data will be uploaded. In fact, the detonators did not detonate. Social security, the competent department cannot control the detonator, which will adversely affect the safety and operation progress of the blasting project
The main reason is that a large number of electronic detonators are densely arranged. Each electronic detonator receives external information and interferes with each other, resulting in a deviation in the blasting time. In addition, harsh conditions such as explosion shock waves and explosion pressure damage the electronic chip, resulting in chip time failure, or Then the impact of the detonator first on the detonator after the detonation makes blind shot occur.

Method used

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  • Electronic detonator initiation system for tunnel blasting
  • Electronic detonator initiation system for tunnel blasting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Full-section excavation, vertical hole trough, blast hole diameter 42mm, circular footage 2.5m, trough hole depth 3m, peripheral hole depth 2.8m, auxiliary hole depth 2.7m, an 89mm hole is drilled in the middle, and the holes are arranged in sequence 8 slot holes, 37 peripheral holes and 28 auxiliary holes. After the single-shot detection of the electronic detonator, the detonator is made, and each blast hole is loaded with a detonator, charged and stuffed. When the electronic detonator is detonated, the reverse detonation method is adopted at the bottom of the hole. The electronic detonator is first placed at the bottom of the hole and then the explosive is filled, and then filled with gun mud or rock slag. Detonate the full length of the detonating cord, then start marking the slot hole of the Taotao set, scan the barcode and set the delay time. For the delay time setting, see figure 2, the delay initiation interval between the cutout holes can be set to 3ms~5ms, th...

Embodiment 2

[0035] Full-section excavation, vertical hole trough, blast hole diameter 42mm, circular footage 2.5m, trough hole depth 3m, peripheral hole depth 2.8m, auxiliary hole depth 2.7m, an 89mm hole is drilled in the middle, and the holes are evenly arranged around 8 slot holes, 37 peripheral holes and 28 auxiliary holes. After the single-shot detection of the electronic detonator, the detonator is made, and each blast hole is loaded with a detonator, charged and stuffed. Positive detonation method is used to charge and detonate, the slot hole and auxiliary hole are continuously charged, the peripheral holes are not coupled to charge, the detonating cord is detonated at the full length, and then the slot hole is marked, the barcode is scanned and the delay time is set. , the delay time is set according to the conventional method, the internal 4 slots are set to 0ms, the other 4 slot holes are set to 25ms, the row of auxiliary holes adjacent to the slot holes is set to 50ms, and the ...

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PUM

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Abstract

The invention relates to the field of blasting, and discloses an electronic detonator initiation system for tunnel blasting. The electronic detonator initiation system is used for reducing the generation probability of blind shots during tunnel blasting and managing the blind shots. The electronic detonator initiation system comprises a handheld terminal, a control center, an initiator, an encoderand an electronic detonator, wherein the handheld terminal communicates with the control center through a wireless network; bar codes corresponding to equipment IDs are arranged on the outer portionsof the encoder and the electronic detonator; the handheld terminal is provided with a camera for scanning the bar codes; if the initiation of the electronic detonator fails and the line of the electronic detonator is intact, the handheld terminal is used for scanning the bar code of the electronic detonator failing to initiate and the bar code of the corresponding encoder, acquiring the ID of theelectronic detonator failing to initiate and the ID of the encoder, and reporting the acquired IDs to the control center for blind shot management; and the blind shot management comprises secondary initiation authorization and destruction authorization, so that the blind shots are conveniently recycled or placed to run into the society. The electronic detonator initiation system is suitable for tunnel blasting.

Description

technical field [0001] The invention relates to the blasting field, in particular to an electronic detonator initiation system for tunnel blasting. Background technique [0002] Industrial digital electronic detonator is referred to as electronic detonator. It is an electric detonator that uses an electronic control module to control the detonation process. It is an industrial detonator that uses microelectronics technology, digital technology, and encryption technology to achieve delay, communication, encryption, and control functions. During the use of electronic detonators, especially in tunnel blasting with dense blastholes, the reliability of electronic detonators is greatly reduced, and a large number of detonators fail to explode. Once detonated, the data will be uploaded. In fact, the detonators did not detonate. Social security, the competent department also can't control the detonator, which will adversely affect the safety and operation progress of engineering bla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42C19/12F42D1/00F42D1/045F42D3/04E21D9/00
CPCF42D1/00F42D1/045F42D3/04F42C19/12E21D9/006
Inventor 黄平
Owner PANZHIHUA UNIV
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