An Efficient Dust Reduction Method for Open-air Step Blasting

A technology of step blasting and dust reduction, which is applied in the direction of blasting, separation methods, chemical instruments and methods, etc., can solve the problems of unsatisfactory dust reduction effects, and achieve the effect of not easy to lose, burn quickly, and easy to decompose

Active Publication Date: 2022-04-22
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The effect of traditional dust suppression method is not ideal

Method used

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  • An Efficient Dust Reduction Method for Open-air Step Blasting
  • An Efficient Dust Reduction Method for Open-air Step Blasting

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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 blasting and dust reduction method for open-air steps, and belongs to the technical field of blasting and dust reduction. The method includes: firstly, arranging the blasting network, and after the arrangement is completed, preparing water bags for dust reduction; secondly, arranging the first water bag inside the blast area; arranging the second water bag on the air surface of the blast area , and make the circular weak surface of the second water bag align with the empty surface; then fill the first water bag and the second water bag with water; Explosives or detonating cords are put into the cavity as the explosion energy of the first water bag and the second water bag; finally, after blasting, the second water bag near the air surface of the explosion area forms a water curtain on the air surface to suppress Diffuse dust generated on the air surface after blasting; after the blasting of the first water bag, the water mainly forms water mist upwards, which is used to suppress the dust diffused in the cracks when the blast hole and the blast stack move forward. The invention can achieve the purpose of synchronously reducing dust during the blasting process, and has good dust reducing effect.

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 Patents(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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