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Mine blasting flyrock protection device and method

A protection device and flying stone technology, applied in the field of mine blasting protection, can solve the problems affecting the stability of buildings and slope surrounding rock, surrounding soil vibration, crushed stone damage, etc., achieving low difficulty in use, safe protection, and easy effect of operation

Active Publication Date: 2021-08-24
LIAONING CHENGYUAN BLASTING ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Blasting is widely used in mining. The current blasting operation is mainly carried out by professional technicians who arrange detonators on site. However, blasting will cause gravel to splash. Even if the blasting personnel are far away from the blasting point, there may be injuries danger
In addition, the blasting operation will cause the vibration of the surrounding soil, affecting the stability of adjacent buildings and surrounding rocks of the slope, and there is an urgent need for a blasting flying rock protection device and method that also has a shock-absorbing effect

Method used

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  • Mine blasting flyrock protection device and method
  • Mine blasting flyrock protection device and method
  • Mine blasting flyrock protection device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as Figure 9 As shown, the test blasting area in the roadway is skarn, the width*height of the roadway section is 3500mm×4300mm, and the length*height of a single protective panel 1 is selected to be 1m×1m. Set up two rows of boreholes 10 on the head-on side of the adjacent roadway. The diameter of boreholes 10 is 500mm, and the hole spacing is 1m. The distance between the two rows of holes is 800mm, and the depth of boreholes 10 is 1500mm. The diameter of choosing shock absorbing cylinder 2 is slightly smaller than borehole 10 diameters.

[0054] Concrete process implementation steps are as follows:

[0055] In the first step, according to the section width of the roadway, two rows of drill holes 10 are opened on the side of the blasting source, and the shock absorber 2 is placed in the drill holes 10 .

[0056] In the second step, the damping cylinder 2 is filled with sand and stones and bamboo chips, and the gap between the damping cylinder body 8 and the bore...

Embodiment 2

[0061] Such as Figure 10 As shown, the blasting area of ​​the open-air test is skarn. According to the blasting range, a single protective panel 1 with a length*height of 1.26m×1m is selected, and two rows of drill holes 10 are set along one side of the blast source. The distance between the two rows of holes is 1.3m, the distance between the two rows of holes is 1m, and the depth of 10 holes is 1800mm. The diameter of choosing shock absorbing cylinder 2 is slightly smaller than borehole 10 diameters.

[0062] Concrete process implementation steps are as follows:

[0063] In the first step, according to the scope of open-air blasting, two rows of drill holes 10 are opened on one side of the blast source, and the shock absorber 2 is placed in the drill holes 10 .

[0064] In the second step, the damping cylinder 2 is filled with sand and stones and bamboo chips, and the gap between the damping cylinder body 8 and the borehole 10 is filled with sand and stones.

[0065] The ...

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PUM

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Abstract

The invention discloses a mine blasting flyrock protection device and method. The device comprises a protection panel and damper cylinders, wherein a plurality of drill holes are formed in one side of a blasting source; each drill hole is internally provided with one damper cylinder; the protection panel comprises transverse rods, vertical rods, auxiliary rods and rubber panels; the transverse rods and the vertical rods are each provided with a first threaded through hole; the two ends of the transverse rods and the two ends of the vertical rods are each provided with a thread; the auxiliary rods are provided with second threaded through holes; threaded holes are formed in the middles of the rubber panels; pull rings are arranged at one sides of the auxiliary rods and at the two sides of the rubber panels; the first threaded through holes of the transverse rods and the vertical rods are connected to the threaded holes of the rubber panels through fasteners; the pull rings between every two adjacent rubber panels are connected through binding wires in a binding mode; the threads at one ends of the transverse rods are connected to the second threaded through holes of the auxiliary rods; pull rings on the auxiliary rods are connected to the pull rings at the outer sides of the rubber panels in a binding mode through binding wires; and the lower ends of the vertical rods are connected to the damper cylinders. The device and the method have a good blasting flyrock protection effect and a good damping effect.

Description

technical field [0001] The invention relates to the technical field of mine blasting protection, and more specifically relates to a mine blasting flying rock protection device and method. Background technique [0002] Blasting is widely used in mining. The current blasting operation is mainly carried out by professional technicians who arrange detonators on the site. However, blasting will cause gravel to splash. Even if the blasting personnel are far away from the blasting point, there may be injuries danger. In addition, blasting operations will cause vibrations in the surrounding soil, which will affect the stability of adjacent buildings and surrounding rocks of slopes. There is an urgent need for blasting flying rock protection devices and methods that can also absorb shocks. Contents of the invention [0003] The object of the present invention is to provide a mine blasting flying stone protection device and method to overcome the defects in the prior art. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D5/045F42D5/04
CPCF42D5/045F42D5/04
Inventor 付小丹杨巍孟强查日森
Owner LIAONING CHENGYUAN BLASTING ENG