Pre-splitting blasting hole cartridge centered limiting device
A limit device and pre-splitting blasting technology, which is applied in blasting and other directions, can solve the problems that it is difficult to ensure the center position of the charge roll, the effect of pre-splitting blasting is greatly affected, and the explosive roll cannot be centered, etc. It achieves simple structure, low cost, and easy installation. The effect of easy maintenance
Active Publication Date: 2013-04-17
ANSTEEL GRP MINING CO LTD
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Problems solved by technology
[0006] If the hole diameter is large, there are many gaskets, the binding operation is troublesome, it is not easy to succeed, and the explosive roll cannot be centered in the blast hole, it is difficult to ensure that the charge roll is in the center of the blast hole, so it has a great impact on the pre-splitting blasting effect
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[0025] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.
[0026] Such as figure 1 As shown, the pre-splitting blasting hole charge volume centering device of the present invention is characterized in that the left semicircular limiting plate 1 and the right semicircular limiting plate 4 are connected to the left semicircular limiting plate 1 and the right semicircular limiting plate. The pin shaft 2 and the connecting assembly of the annular limiting plate 4 are formed by the anti-skid layer on the left semicircular limiting plate 1 and the right semicircular limiting plate 4, and the left semicircular limiting plate 1 and the The right semi-circular limiting plate 4 is docked to form a centering device for drug rolls, and the inner hole of the centering device for drug rolls is socketed with the drug roll 3 . Due to the butt joint structure of the left semi-circular limiting plate 1 and the rig...
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The invention relates to the technical field of uncoupled charged cartridge control in a pre-splitting blasting hole, in particular to a pre-splitting blasting hole cartridge centered limiting device. The limiting device is characterized by consisting of a left semicircular limiting plate, a right semicircular limiting plate, a pin shaft and a connecting assembly for connecting the left semicircular limiting plate and the right semicircular limiting plate, and anti-slip layers arranged on the left semicircular limiting plate and the right semicircular limiting plate, wherein the left semicircular limiting plate and the right semicircular limiting plate are butted to form a cartridge centered limiting device, and an inner hole of the cartridge centered limiting device is sleeved with a cartridge. The limiting device has the advantages of simple structure, low cost, convenience for installation and maintenance, explosion resistance, electrostatic resistance, impact resistance and acid and alkali resistance, ensures the centered position of the cartridge, effectively improves the quality of pre-splitting blasting, and meanwhile, is easy for transportation.
Description
technical field [0001] The invention relates to the technical field of uncoupled charge and cartridge control in a pre-splitting blasting blast hole, in particular to a centering and limiting device for a pre-split blasting blast hole charge and cartridge. Background technique [0002] In the process of pre-splitting blasting in special parts of open-pit mines, when the charge is not coupled, the charge volume is required to be limited to the center of the blast hole, and the best pre-splitting effect has been obtained. [0003] At present, during the construction process of uncoupled pre-splitting blasting in open-pit mines in China, there is no special limit device for the centering of the charge volume in the blast hole without coupling charge. The usual practice is: [0004] Use single and double pieces of bamboo, and tie the medicine roll in the middle; (2) connect the detonating cord; (3) distribute several small pieces of bamboo suitable for tape binding around...
Claims
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IPC IPC(8): F42D1/22
Inventor 汪忠海解治宇崔喜权王志忠王永增
Owner ANSTEEL GRP MINING CO LTD