Method for reducing surface blasting dust

Abstract

The invention discloses a method for reducing surface blasting dust, and particularly relates to the field of engineering blasting. A dust blocking mechanism is included, the dust blocking mechanism includes a water bag and a water seal, the water seal is arranged inside the water bag, and the water seal includes water and surfactants. The method for blasting by using the dust blocking mechanism is that the water bag is manufactured, the water bag is filled with a certain number of surfactants, then a small amount of water is injected, and the water bag is slowly put into a gun hole; water iscontinuously poured into the water bag until the water is flush with the ground; and the top end of the water bag is tied to complete the water seal, and then a user needs to wait for explosion. By means of the method, the water bag containing the water seal is used as the dust blocking mechanism to be placed in the gun hole, gunpowder and gun mud at the bottom are blocked, when the gunpowder is ignited and detonated, the gun hole cannot be punched, the explosive dust can be wrapped with the water seal, the ground surface after explosion has a layer of light water mist, the dust concentrationis very low, and the open-air step blasting dust concentration can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of engineering blasting, and more specifically, the invention relates to a method for reducing dust in open-air blasting. Background technique [0002] As the scale of step blasting in open-pit mines continues to increase, the amount of single explosives used also increases, and the dust pollution generated by large-scale blasting operations has also attracted more and more attention. A large amount of blasting dust diffuses freely in the air and stays for a long time, which has a serious impact on the environment of the mining area and the health of personnel. The control of dust pollution has become an urgent problem to be solved in the mine. [0003] The hazards of dust mainly exist in the following aspects: [0004] (1) Hazardous to health [0005] Yan Shilong et al. of Anhui University of Science and Technology have studied the particle size of blasting dust, showing that less than 0.1% of the dust in...

AI Technical Summary

Problems solved by technology

[0010] In order to overcome the above-mentioned defects of the prior art, the embodiment of the present invention provides a method for reducing the dust of open-air blasting, by using a water bag filled with a water seal as a dust blocking mechanism to place it in the blast hole, and the gunpowder and blast mud at the bottom Blocked, when the gunpowder is ignited and detonated, the blast hole will not be punched, and the dust of the explosion can be wrapped by a water seal. After the explosion, there is a light layer of water mist on the surface, and the dust concentration is very low, which can effectively reduce the blasting of open-air steps. The concentration of dust solves the problems of open-pit deep-hole rock blasting in the prior art due to the fact that dust has many dust production points, large dust production, high dust concentration, high dispersion, easy diffusion, and wide pollution range.

Images