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Carbon dioxide blasting structure and method used for mines, or rock or coal rock

A technology of carbon dioxide and liquid carbon dioxide, which is applied in earthwork drilling and discharge machinery, etc., can solve the problems of small blasting range and difficulty in meeting actual needs, and achieve the effect of large blasting range, excellent safety, and good safety

Active Publication Date: 2017-04-26
山东山矿测控技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the traditional blasting method, this method has greatly improved the safety. However, it is dangerous to use electric energy or explosives in a high-explosive gas environment, and it has certain risks. At the same time, this type of blasting method There is also the shortcoming that the blasting range is small, and it is difficult to meet the actual needs

Method used

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  • Carbon dioxide blasting structure and method used for mines, or rock or coal rock
  • Carbon dioxide blasting structure and method used for mines, or rock or coal rock
  • Carbon dioxide blasting structure and method used for mines, or rock or coal rock

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Embodiment 1

[0034] Such as Figure 1-4As shown, the present embodiment provides a carbon dioxide blasting structure for mines, rocks or coal rocks, including a blasthole 1 drilled on a stone body 26, and liquid carbon dioxide 2 is injected into the blasthole 1, so that The upper part of the blast hole 1 is blocked by a hole sealer 3, and an oil injection pipe 4 is inserted and sealed on the hole sealer 3, and the upper port of the oil injection pipe 4 is connected with a hydraulic source 5, and in the blast hole 1 A carbon dioxide shattering device 6 detonated by hydraulic energy is provided in the middle, and the detonation hydraulic interface 7 of the carbon dioxide shattering device 6 is connected with the lower port of the oil injection pipe 4; the hole sealing device 3 is provided with a carbon dioxide injection channel hole 8; the hole sealer 3 includes a central cylinder 9, the oil injection pipe 4 is inserted longitudinally through the central cylinder 9, the carbon dioxide inject...

Embodiment 2

[0036] Such as Figure 1-4 As shown, the present embodiment provides a carbon dioxide blasting method for mines, rocks or coal rocks, the steps of which include:

[0037] The first step: hole layout, according to the shape and size of the rock body 26 to be blasted, the position of the blasthole 1 is laid out;

[0038] The second cloth: drilling, drilling at the arranged position, the aperture of the blasthole 1 is 7-28cm, and the depth of the blasthole 1 is 6-20m;

[0039] The third cloth: install the blasting device, prepare the hole sealer 3 which is interspersed with the oil injection pipe 4 and the carbon dioxide injection through hole 8, connect the upper end of the oil injection pipe 4 with the hydraulic source 5, and connect the lower end of the oil injection pipe 4 with The carbon dioxide shock cracking device 6 detonated by hydraulic energy, the carbon dioxide shock cracking device 6 and the hole sealer 3 are put into the blast hole 1, and the hole sealer 3 is used ...

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Abstract

The invention relates to a carbon dioxide blasting structure and method used for mines, or rock or coal rock. The blasting structure comprises a blast hole drilled in a stone body. Liquid carbon dioxide is injected into the blast hole. The upper portion of the blast hole is sealed through a hole sealing device. An oil filling pipe is inserted in the hole sealing device in a sealing mode. An upper end opening of the oil filling pipe is connected with a hydraulic source. A carbon dioxide shattering device which is detonated through hydraulic energy is arranged in the blast hole. A detonation hydraulic connector of the carbon dioxide shattering device is connected with a lower end opening of the oil filling pipe. The blasting method comprises the steps of hole arranging, hole drilling, blasting device arranging, liquid carbon dioxide filling and blast device firing and recycling. The carbon dioxide blasting structure has the advantages of large blasting range and good safety, and is suitable for wide application and popularization.

Description

technical field [0001] The invention relates to a carbon dioxide blasting structure and method for mines, rocks or coal rocks, and belongs to the technical field of mine ore body mining. Background technique [0002] In traditional mining, rock or coal mining operations, the methods to prevent and control gas explosions in the mining face are mainly to prevent the generation of open fires in the mine, and increase the ventilation in the mine to dilute the gas concentration to meet safety standards. The above method reduces the probability of gas explosion to a certain extent. However, during the blasting process of the mining face, a large amount of coal dust and gas will inevitably be gushed out, and the traditional blasting process will generate sparks, which may cause a potential explosion risk. , Potential threats to mines and underground personnel. [0003] For this reason, in the early 1860s, some countries with developed mining industries began to study the applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C37/14
CPCE21C37/14
Inventor 巩和一陈祥力李光武
Owner 山东山矿测控技术有限公司