Method for preventing and treating blasting raise dust and blasting harmful gas

Abstract

The invention relates to a method for preventing and treating blasting raise dust and blasting harmful gas, and belongs to the field of engineering blasting. A dry water type material for preventing and treating blasting dust and blasting harmful gas is prepared from the following components in parts by weight: 3-10 parts of a hydrophobic nano material and 90-97 parts of an inorganic solution. Themethod comprises the following steps: firstly, adding the hydrophobic nano material into the inorganic solution, uniformly mixing the hydrophobic nano material and the inorganic solution, adding themixture into a high-speed dispersion machine, and carrying out shear dispersion to prepare the dry water type material. During blasting construction, a blast hole is blocked by water stemming and claystemming, and then the periphery of the blast hole is covered with the dry water type material. In the blasting process, water in the water stemming can be atomized to reduce dust, meanwhile, explosion gas and shock waves can raise and destroy the dry water type material, and compared with water, the undestroyed dry water type material has higher capture and storage efficiency on gas such as carbon dioxide and hydrogen sulfide; and the destroyed dry water type material can release a coated solution to adsorb and absorb blasting dust and blasting harmful gas.

Description

technical field [0001] The invention relates to a method for preventing and controlling blasting dust and harmful gas generated by blasting, more specifically, using "dry water" materials in the process of engineering blasting to realize the method for preventing and controlling blasting dust and harmful gas generated by blasting, and belongs to the field of blasting engineering. Background technique [0002] As an efficient construction method, blasting is widely used in engineering construction because of its advantages of low cost and high efficiency. With social development and scientific and technological progress, blasting technology has developed rapidly and gradually matured, and its application fields are also expanding, while the negative effects of blasting operations are also gradually increasing. Blasting operations not only need to control the blasting hazards in the traditional sense such as blasting vibration, flying stones, shock waves, and noise, but also n...

AI Technical Summary

Problems solved by technology

However, Wang Haiguang and others only used high-pressure water blasting mud as a dust-reducing agent and plugging agent. Although the dust-reducing effect can be improved to a certain extent, the impact of blasting dust and harmful gases on the surrounding environment is still relatively large

Water has a lower density than clay and gravel, and its use as gun mud will reduce the energy utilization rate of explosives and affect the blasting effect

Although the dust reduction method announced by Qi Shifu et al. can achieve a good dust reduction effect, a large amount of water is consumed in A1 and A3. In actual engineering, the workload is heavy and the implementation process is difficult, which cannot meet the needs of high efficiency and environmental protection.

For the above two methods, researchers often only focus on the prevention and control of blasting hazards such as blasting vibration, flying stones, shock waves, noise and blasting dust, and there are few relevant protective measures for harmful gases generated by blasting

Although the harmful gas produced by the explosion has less impact on the surrounding population than the blasting dust, it has a certain degree of damage to the environment, which is contrary to the national environmental protection policy

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