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Filling head, carbon dioxide cracker and carbon dioxide cracker unit

A carbon dioxide and cracker technology, applied in weapon accessories, blasting cartridges, ammunition and other directions, can solve the problems of complex parallel wiring, hidden dangers in production safety, and easily broken wires, and achieve the effect of eliminating hidden dangers in production safety and eliminating the electrification of the pipe body.

Pending Publication Date: 2018-07-24
CCTEG CHINA COAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the single-electrode filling head is working, there will be hidden dangers to production safety due to the electrification of the cracking tube body
Moreover, when the single-electrode filling head is used for multi-tube parallel detonation, it is necessary to use wires to connect the outside of multiple crackers in parallel, but this parallel connection method is complicated, the failure rate is high, and the wires are easy to break, which can easily lead to detonation failure.

Method used

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  • Filling head, carbon dioxide cracker and carbon dioxide cracker unit
  • Filling head, carbon dioxide cracker and carbon dioxide cracker unit
  • Filling head, carbon dioxide cracker and carbon dioxide cracker unit

Examples

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Effect test

Embodiment 1

[0026] figure 1 This is a schematic structural diagram of a filling head provided in the first embodiment of the present invention. This embodiment can be applied to the case where the initiating device is electrically heated by the filling head in the carbon dioxide cracker. Such as figure 1 As shown, the filling head includes a housing 1 in which an axial positive electrode 2, a central electrode 3 and an axial negative electrode 4 are arranged.

[0027] Among them, the axial positive pole 2 is connected with the detonating device 5; the detonating device 5, the central electrode 3 and the axial negative pole 4 are sequentially connected in series.

[0028] Optionally, the axial positive electrode 2 is arranged on the central axis of the housing 1. The center electrode 3 and the axial electrode 2 are coaxially arranged, but the two electrodes are not directly connected. The axial negative electrode 4 is arranged at a position away from the central axis. The axial positive pole ...

Embodiment 2

[0036] figure 2 Is a schematic structural diagram of a filling head provided in the second embodiment of the present invention; image 3 It is a front view of a filling head provided in the second embodiment of the present invention; Figure 4 Is a side view of a filling head provided in the second embodiment of the present invention; Figure 5 Yes Figure 4 Sectional view along the A-A direction. Such as Figure 2 to Figure 5 As shown, the second embodiment of the present invention is optimized on the basis of the above embodiments: the filling head further includes: a radial positive electrode connected to the axial positive electrode, and a radial negative electrode connected to the axial negative electrode.

[0037] After optimization, such as figure 2 As shown, a filling head includes: a housing 1, an axial positive electrode 2, a center electrode 3, an axial negative electrode 4, a radial positive electrode 6 and a radial negative electrode 7.

[0038] Among them, the axial...

Embodiment 3

[0051] Image 6 A schematic diagram of the structure of a carbon dioxide cracker provided in the third embodiment is given. This embodiment can be applied to the situation of safely blasting coal mines. Such as Image 6 As shown, the carbon dioxide cracker includes a filling head 200 according to any embodiment of the present invention. In addition to the filling head 200, the carbon dioxide cracker also includes an initiating device 210, a fracturing tube 220 and an energy venting head 230.

[0052] Among them, the filling head 200, the detonating device 210, the fracturing tube 220 and the energy venting head 230 are connected in series. Preferably, the filling head 200, the detonating device 210, the fracturing tube 220, and the energy venting head 230 are connected in sequence by threads to achieve a stable connection and facilitate installation and maintenance.

[0053] In this embodiment, the initiating device 210 can be electrically heated only by the filling head 200, so ...

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Abstract

The invention discloses a filling head, a carbon dioxide cracker comprising the filling head, and a carbon dioxide cracker unit. The filling head comprises a shell, wherein an axial anode, a central electrode and an axial cathode are arranged in the shell; the axial anode is connected to a detonating device; and the detonating device, the central electrode and the axial cathode are successively connected in series. The filling head disclosed by the invention can eliminate the production potential safety hazard of an electrified tube body, and safe detonation is achieved.

Description

Technical field [0001] The invention relates to blasting technology, in particular to a filling head, a carbon dioxide cracker and a dioxide cracker group. Background technique [0002] With the development of science and technology, carbon dioxide crackers have gradually replaced detonators and explosives commonly used in mine mining. The carbon dioxide cracker uses liquid carbon dioxide to rapidly gasify and expand when heated, so as to perform external work to achieve blasting. Since the carbon dioxide gas released during the blasting process has the functions of cooling, flame retardant and explosion prevention, the carbon dioxide cracker can avoid gas explosion accidents caused by open flames, which is beneficial to the safe production of coal mines. [0003] At present, the filling head in the carbon dioxide fracturing device usually adopts a pin type or a thimble type connection method, that is, the pin or thimble in the filling head is used as a power pole to connect with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42B3/04F42B3/28F42B33/00
CPCF42B3/045F42B3/28F42B33/00
Inventor 倪昊孟祥甜孙小明温良姚永辉
Owner CCTEG CHINA COAL RES INST
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