Blasting test device and blasting method
A blasting test and test device technology, applied in blasting and other directions, can solve the problems such as difficulty in considering the development of cracks and joints in rocks, the impact of blasting effects is very large, and the scheme has not been properly solved, so as to reduce the harmful effects of blasting and facilitate the Large-scale promotion and application to improve the effect of blasting
Active Publication Date: 2018-11-23
NANJING MEISHAN METALLURGY DEV
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Problems solved by technology
[0002] The ore caving in underground metal mines often involves medium and deep hole blasting. It is difficult to use the test method to verify the location of the priming package during medium and deep hole blasting. Therefore, the blasting effect analysis of hole initiation and hole bottom initiation has always been Relying on theoretical analysis or large-scale similar simulation experimental devices for research, such as: blasting simulation software based on LS-DYNA, this method is difficult to consider the development of cracks and joints in rocks through grid division and rock attribute assignment. The development has a great influence on the blasting effect. This method cannot consider the actual blasting and is more theoretical; similar simulation experimental devices require large-scale simulation equipment, and the construction and preparation work is complicated.
Those skilled in the art try new schemes all the time, but this scheme has not been properly solved
Method used
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Embodiment 1
[0029] Example 1: see figure 1 , a kind of blasting test device, described blasting test device comprises base 1, and steel pipe body 2 is welded on described base 1, and Suoshan steel pipe body 2 is provided with charging tube 4, and described charging tube is provided with emulsified granular ammonium Oil explosives, the mouth of the charging tube is provided with a priming charge 6, the bottom of the charging tube is provided with a priming charge 6, and the inside of the charging tube is provided with a priming charge detonator 9, a priming charge Detonator energy-gathering hole 10, rock powdery explosive 11, the bottom of described charging tube is also provided with foot line groove 8, and described test device is provided with transition connection device, is used to connect two sets of test devices, so The transition connection device includes an insulating tape 13, a network excitation detonator 14, an angle 15 between the leg of the detonator and the detonating cord,...
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The invention relates to a blasting test device. The blasting test device comprises a base and a steel pipe body welded to the base. A charging pipe is arranged in the steel pipe body. The charging pipe is filled with emulsified granular ammonium nitrate fuel oil. An igniting primer is arranged on the opening portion of the charging pipe, and an igniting primer is arranged at the bottom of the charging pipe. The charging pipe is internally provided with an igniting primer detonator, an igniting primer detonator energy cavity and rock powdery explosives. According to the technical scheme, the structure is compact, and the cost is low. A coupling charging structure and a non-coupling charging structure are distinguished in the method, the pressure value is estimated according to an initial pressure formula of the hole wall, the pressure valve and the ultimate strength of a steel pipe are compared so as to select the types and the wall thicknesses of the steel pipe and a steel plate, therefore, the deformation amount of the device can be controlled, visual comparison is facilitated, and convenience is well achieved.
Description
technical field [0001] The invention relates to a blasting test device, in particular to a blasting test device and a blasting method, and belongs to the technical field of blasting equipment. Background technique [0002] The ore caving in underground metal mines often involves medium and deep hole blasting. It is difficult to use the test method to verify the location of the priming package during medium and deep hole blasting. Therefore, the blasting effect analysis of hole initiation and hole bottom initiation has always been Relying on theoretical analysis or large-scale similar simulation experimental devices for research, such as: blasting simulation software based on LS-DYNA, this method is difficult to consider the development of cracks and joints in rocks through grid division and rock attribute assignment. The development has a great influence on the blasting effect. This method cannot consider the actual blasting and is more theoretical; similar simulation experi...
Claims
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IPC IPC(8): F42D1/00F42D3/00
CPCF42D1/00F42D3/00
Inventor 李正刚
Owner NANJING MEISHAN METALLURGY DEV