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Explosive lowering device and construction method

A construction method and explosive technology, applied in blasting and other directions, can solve problems such as casualties, and achieve the effects of improving safety, facilitating recovery, and having a simple device structure

Inactive Publication Date: 2016-07-27
CHINA GEZHOUBA (GRP) FIRST ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Explosives tend to generate a large impulse in free fall, and are prone to casualties caused by explosions when explosives are placed

Method used

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  • Explosive lowering device and construction method
  • Explosive lowering device and construction method
  • Explosive lowering device and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 Among them, an explosives lowering device, the lower end of the cylinder 1 is provided with a suction cup 3 for absorbing explosives 12, the center of the suction cup 3 communicates with the inner cavity of the cylinder 1, the cylinder 1 is provided with a piston 2, and the piston 2 is provided with a first pull The rope 4 is also provided with a limit block at the upper end of the cylinder body 1 to limit the position of the piston 2 .

[0029] In a preferred solution, an adjustable counterweight is provided on the barrel 1 to ensure that there is sufficient negative pressure adsorption force to make the suction cup 3 and the explosive 12 adsorb together and not fall off during the lowering process.

[0030] In a further preferred solution, there are multiple suction cups 3 . With the solution of multiple suction cups 3, even if some suction cups 3 fail, the explosive 12 will not fall off. The safety of blasting construction is further improved.

[...

Embodiment 2

[0037] On the basis of Example 1, the preferred scheme is as figure 2 , 4 Among them, the piston 2 is provided with a vent hole, the vent hole is provided with a plug 6, and the plug 6 is provided with a second pull rope 5. With this structure, it is convenient to pass air through the air hole on the piston more reliably, and it is beneficial to separate the suction cup 3 from the explosive after the explosive is placed in place.

[0038] In use, when the explosive 12 reaches the predetermined position, first pull up the second pull cord 5, so that the blockage 6 is released from the vent hole, the air enters the suction cup 3, and the suction cup 3 is separated from the explosive, and then the first pull cord is pulled up. Rope 4, whole explosive lowering device is recovered.

Embodiment 3

[0040] On the basis of Example 1, the preferred scheme is as image 3 Among them, the first stay rope 4 is connected to the first hoisting roller 10 around the pulley 9 located at the opening of the blast hole 7 . With this structure, the operator is prevented from directly operating at the opening of the blast hole 7, and the operation of remotely lowering the explosives can be realized, thereby further ensuring construction safety.

[0041] Wherein the pulley 9 is placed on the orifice of the blast hole 7 through the pulley support 8, and the first hoisting roller 10 is fixedly installed on the ground. Further preferably, the bottom of the first hoisting roller 10 is provided with a turntable, so as to be connected with different positions. The pulleys 9 are arranged in parallel. Through manual or electric operation, the operator is far away from the site to ensure the safety of construction. Preferably, both the pulley 9 and the pulley support 8 are made of plastic to fur...

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PUM

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Abstract

The invention relates to an explosive lowering device. A sucking disc for adsorbing explosive is arranged at the lower end of a barrel, the center of the sucking disc is communicated with the inner cavity of the barrel, a piston is arranged in the barrel, and a first pull rope is arranged on the piston. A construction method adopting the explosive lowering device comprises the following steps: firstly, tensioning the first pull rope, so that negative pressure is generated in the sucking disc for adsorbing the explosive; secondly, putting the explosive in a blast hole, and retaining the first pull rope to be tensioned in the lowering process; thirdly, after the explosive reaches a preset position, loosening the first pull rope so that the sucking disc is separated from the explosive. Safe lowering of the explosive at a constant speed is realized through the steps. According to the explosive lowering device and the construction method provided by the invention, by adopting the manner that the explosive is adsorbed by the sucking disc controlled by the pull rope, safe lowering of the explosive into the blast hole at the constant speed is realized controllably, and the auxiliary explosive lowering device is convenient to recycle. The device disclosed by the invention is simple in structure, and the safety in blasting construction is greatly improved.

Description

technical field [0001] The invention relates to the field of blasting auxiliary devices, in particular to an explosive lowering device and a construction method. Background technique [0002] In the blasting construction, the existing explosives are lowered without any device, and the explosives are placed in the blast holes by using gravity. Explosives tend to generate a large impulse in free fall, and are prone to casualties caused by explosions when explosives are placed. There is a need to develop auxiliary devices that can safely release explosives and facilitate recovery. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an explosive lowering device and a construction method, which can realize the safe lowering of explosives into the blast hole at a controllable and uniform speed, and facilitate recovery. [0004] In order to solve the above technical problems, the technical solution adopted in the present ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D1/08
Inventor 汤用泉何雄飞胡方华涂胜林文斌张小华
Owner CHINA GEZHOUBA (GRP) FIRST ENG CO LTD