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Efficient outdoor step blasting dust falling method

A technology for step blasting and dust reduction, applied in blasting, separation methods, chemical instruments and methods, etc., can solve problems such as unsatisfactory dust reduction effect, and achieve the effects of easy decomposition, rapid combustion and simple operation.

Active Publication Date: 2020-04-28
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effect of traditional dust suppression method is not ideal

Method used

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  • Efficient outdoor step blasting dust falling method
  • Efficient outdoor step blasting dust falling method

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Embodiment Construction

[0032] The present invention proposes a highly efficient dust reduction method for open-air step blasting. In order to make the advantages and technical solutions of the present invention clearer and clearer, the present invention will be described in detail below in conjunction with specific examples.

[0033] Such as figure 1 As shown, the first water bag 1 of the present invention includes a bag body, and the bag body includes upper and lower parts, the lower part is a cylinder, the upper part is a hemisphere, and there is a circular plane on the top of the hemisphere, and the circular plane on the top 6 is used as a weak surface, and a water injection port 4 is set on the weak circular plane, and there is a cavity 3 near the water injection port, and the cavity 3 is used to place an explosion source.

[0034] In the above-mentioned first water bag, the weak circular plane means that the thickness of this place is smaller than the thickness of the rest of the first water ba...

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Abstract

The invention discloses an efficient outdoor step blasting dust falling method, and belongs to the technical field of blasting dust falling. The method comprises the steps that firstly, a blasting network is arranged, and after the blasting network is arranged, water bags used for dust falling are prepared; secondly, the first water bag is arranged in a blasting area; the second water bag is arranged on a free face of the blasting area, and a round weak face of the second water bag is aligned at the free face; water is injected into the first water bag and the second water bag; and explosivesor detonating cords are put into a cavity in the top of the first water bag and a cavity in the top of the second water bag to serve as blasting energy of the first water bag and the second water bag;finally, blasting is carried out, after blasting, the second water bag close to the free face of the blasting area forms a water curtain on the free face so as to press diffusion powder generated bythe free face after blasting; and after the first water bag is blasted, water is mainly upward, water mist is formed, and the water mist is used for pressing powder diffused in a crack during forwardmoving of a blasting hole and a blasting pile. In the blasting process, the aim of synchronous dust falling is achieved, and the dust falling effect is good.

Description

technical field [0001] The invention belongs to the technical field of blasting and dust suppression, and in particular relates to a method for blasting and dust suppression of steps in the open air. Background technique [0002] Step blasting refers to a double-free surface blasting method, which is widely used in mines, railways, highways, water conservancy and hydropower projects. With the continuous improvement of deep hole drilling rigs and shipping equipment, the continuous improvement of blasting technology and the increasing development of blasting equipment, step blasting technology has become increasingly mature and perfect. [0003] During the blasting process, not only will there be blasting hazards that should be paid attention to, such as individual blasting scattered objects, blasting vibration, and blasting shock waves, but also a large amount of powder (smoke) dust will be generated during the blasting of open-air steps, which not only affects the surroundin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/00E21F5/14B01D47/06
CPCF42D1/00E21F5/14B01D47/06
Inventor 高文乐柳鹏辉段耀奎孙晓娟
Owner SHANDONG UNIV OF SCI & TECH
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