Blasting blocking dust fall device

Abstract

The invention discloses a blasting blocking dust fall device. The blasting blocking dust fall device comprises a water cannon bag body and a water cannon bag special tool; and the water cannon bag body is provided with a water injection cavity, a water injection channel cavity, a water injection channel, a water injection channel closed bag layer, a first-section water cannon bag, a water bag partition cavity, a high-pressure water channel, a second-section water cannon bag, a water cannon bag end air bag and an air nozzle. According to the blasting blocking dust fall device, the water cannonbag body is filled with high-pressure water, the contact area between the outer wall of the water cannon bag body and the inner wall of a blast hole is increased, the outer wall of the water cannon bag body makes closer contact with the inner wall of the blast hole through high pressure in the water cannon bag body, and the beneficial effects of replacing clay stemming to block blast hole is achieved; due to the fact that the length of the water cannon bag body is increased, the water cannon bag body can be completely suitable for the length of the blast hole, the water volume is increased, the water curtain range after blasting is enlarged, and the beneficial effects capable of better absorbing harmful gas and dust in blast smoke after blasting is achieved; and due to the design of the sectional type water cannon bag body, sequential rupture is achieved at the moment of blasting, the impact force generated at the moment of blasting is buffered, and the blast hole can be blocked more tightly.

Description

technical field [0001] The invention relates to the technical field of mine blasting devices, in particular to a device with the functions of blasting blocking, section blocking and section dust reduction. Background technique [0002] The blasting dust reduction method in the prior art adopts the combination of water blasting mud and clay blasting mud. This combination method is equipped with an electric detonator, explosives, water blasting mud and clay blasting mud in the blasting hole. The water blasting mud is filled with water in a circular bag. , plays the role of dust reduction, and the clay blasting mud plays the role of sealing; the water blasting mud of the prior art is placed in the blasting hole after injecting water first, and the diameter of the water blasting hole must be smaller than the blasting hole, and the water blasting mud does not have a sealing effect. It only plays the role of dust reduction, so it must be sealed with clay mortar; since the depth of...

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Problems solved by technology

[0002] The blasting dust reduction method in the prior art adopts the combination of water blasting mud and clay blasting mud. This combination method is equipped with an electric detonator, explosives, water blasting mud and clay blasting mud in the blast hole. The water blasting mud is filled with water in a circular bag. , plays the role of dust reduction, and the clay blasting mud plays the role of sealing; the water blasting mud of the prior art is placed in the blasting hole after injecting water first, and the diameter of the water blasting hole must be smaller than the blasting hole, and the water blasting mud does not have a sealing effect. It only plays the role of dust reduction, so it must be sealed with clay mud; since the depth of the blast hole is fixed, the distance of clay mud sealing is short, and the length of the water mud that actually plays the role of dust reduction cannot be too long, which will affect the blasting impact during blasting. There is no buffer force, and the range of the water curtain after blasting is small, which cannot completely absorb the harmful gas in the blast smoke. Therefore, the use of clay to block not only has low work efficiency, but also has insignificant dust reduction effect. , clay is also a natural resource, and a large amount of clay will cause waste of resources and damage the natural environment

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