Auxiliary device for blasthole charging and its use method

An auxiliary device and blast hole charging technology, which is used in earth-moving drilling, open-pit mining, blasting, etc., can solve the problems of long charging time and complicated operation process, and achieve low production cost, easy portability, and reduced loading. The effect of medication time

Active Publication Date: 2022-04-15
UNIV OF SCI & TECH LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In open-pit mine blasting, in order to reduce the blasting vibration, interval charging is used. During the charging process of the explosive vehicle, when placing the spacer, the charging tube needs to be lifted to stop charging, resulting in long charging time and complicated operation.

Method used

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  • Auxiliary device for blasthole charging and its use method
  • Auxiliary device for blasthole charging and its use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In an open-pit mine, the blast hole is a deep hole with a depth of 14m, a blast hole diameter of 250mm, a charge length of 9.5m, a packing length of 4.5m, a drug delivery pipe diameter of 42mm, and a blast hole spacer length of 2m. Choose a density of 1.1g / cm 3 No. 2 rock emulsion explosive.

[0041] An auxiliary device for blasthole charging, comprising a standpipe 1 and a charge pipe 2, the charge pipe 2 is obliquely connected to the side wall of the standpipe 1, and the upper opening of the standpipe 1 and the upper opening of the charge pipe 2 are on the same horizontal plane On the side wall of the standpipe 1 there is an open slot 3 parallel to the axis, and the top of the open slot 3 is tapered from bottom to top.

[0042] The included angle A between the drug receiving tube 2 and the standpipe 1 is 30°.

[0043] The diameter of the medicine receiving tube 2 is 50mm, and the distance between its bottom and the top of the vertical pipe 1 is 100mm.

[0044] The ...

Embodiment 2

[0047] In an open-pit mine, the blast hole is a deep hole with a depth of 16m, a blast hole diameter of 300mm, a charge length of 10m, a packing length of 6m, a drug delivery pipe diameter of 40mm, and a blast hole spacer length of 1.5m. Choose a density of 1.3g / cm 3 Granular Ammonium Fuel Explosives.

[0048] An auxiliary device for blasthole charging, comprising a standpipe 1 and a charge pipe 2, the charge pipe 2 is obliquely connected to the side wall of the standpipe 1, and the upper opening of the standpipe 1 and the upper opening of the charge pipe 2 are on the same horizontal plane On the side wall of the standpipe 1 there is an open slot 3 parallel to the axis, and the top of the open slot 3 is tapered from bottom to top.

[0049] The included angle A between the drug receiving tube 2 and the standpipe 1 is 30°.

[0050] The diameter of the medicine receiving tube 2 is 50mm, and the distance between its bottom and the top of the vertical pipe 1 is 150mm.

[0051] T...

Embodiment 3

[0054] In an open-pit mine, the blast hole is a deep hole with a depth of 18m, a blast hole diameter of 310mm, a charge length of 11.8m, a packing length of 6.2m, a drug delivery pipe diameter of 45mm, and a blast hole spacer length of 2.5m. Choose a density of 1.1g / cm 3 No. 2 rock emulsion explosive.

[0055] An auxiliary device for blasthole charging, comprising a standpipe 1 and a charge pipe 2, the charge pipe 2 is obliquely connected to the side wall of the standpipe 1, and the upper opening of the standpipe 1 and the upper opening of the charge pipe 2 are on the same horizontal plane On the side wall of the standpipe 1 there is an open slot 3 parallel to the axis, and the top of the open slot 3 is tapered from bottom to top.

[0056] The included angle A between the drug receiving tube 2 and the standpipe 1 is 30°.

[0057] The diameter of the medicine receiving tube 2 is 60mm, and the distance between its bottom and the top of the vertical pipe 1 is 150mm.

[0058] T...

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Abstract

The invention relates to an auxiliary device for blasthole charging, which comprises a standpipe and a charge pipe. The charge pipe is obliquely connected to the side wall of the standpipe. The side wall of the tube is provided with an open groove parallel to the axis, and the top of the open groove is tapered gradually expanding from bottom to top. When charging the gun barrel, connect the charge tube with the explosive vehicle charging hose; put the lower opening of the standpipe into the blast hole; put the detonating bomb into the blast hole from the upper mouth of the standpipe, Put it into the open slot; the explosive vehicle starts to charge the blast hole until it reaches the charge height for installing the spacer, and the explosive vehicle stops conveying the explosive; put the spacer into the blast hole from the upper mouth of the standpipe 1; continue charging until the blast hole is reached. The gun hole requires charge. The device quickly places the spacer and the detonating bomb, improves the work efficiency of workers, and reduces the charging time. The production cost is low, and it is easy to carry, and solves practical engineering problems such as complex charging process, time-consuming, and labor-consuming.

Description

technical field [0001] The invention relates to the field of mining, in particular to an auxiliary device for blasthole charging. Background technique [0002] In open-pit mine blasting, in order to reduce the blasting vibration, interval charging is used. During the charging process of the explosive vehicle, when placing the spacer, the charging tube needs to be lifted to stop charging, resulting in long charging time and complicated operation. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an auxiliary device for blasthole charging, which can quickly place spacers and detonating bombs, improve the work efficiency of workers, and reduce the charging time. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] An auxiliary device for blasthole charging, comprising a standpipe and a charge pipe, the charge pipe is obliquely connected to the side wall of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D1/10F42D3/04E21C47/00
CPCF42D1/10F42D3/04E21C47/00
Inventor 徐振洋李广尚何茂林宁玉滢
Owner UNIV OF SCI & TECH LIAONING
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