Dust fall agent for water mist dust fall

Abstract

The invention relates to a dust fall agent for water mist dust fall. 0.06-0.2wt% of wetting agent permeation assistant is added to water, wherein the wetting permeation assistant comprises anionic surfactant, or cationic surfactant, or zwitterionic surfactant, or non-ionic surfactant. Because in the dust fall agent of the invention, 0.06-0.2wt% of wetting agent permeation assistant is added to water, thus the surface tension of the water can be reduced, the contact capacity of the water with dust particles is promoted, and solid materials can be soaked by water more easily through the wetting agent permeation assistant, thereby accelerating the wetting permeation velocity of water to the dust particles, accelerating the fall velocity of the dust particles, and reducing the fall time of the dust particles. Thus, the invention reduces the operation time and the operation cost, protects the health and safety of operation personnel, and can be widely applied to water spray, water sprinkling, dust fall and dust suppression of mines, tunnels or roads.

Description

technical field [0001] The invention relates to a dust-reducing agent, in particular to a dust-reducing agent for water mist dust reduction. Background technique [0002] At present, inhalable particulate matter is the primary pollutant in the air environment of most cities in China, especially the pollution of particles with a diameter of less than 2.5 microns is very serious. Studies have shown that inhalable particulate matter is extremely harmful to human health, and can cause cancer, deformity, and even gene mutations in severe cases. Atmospheric inhalable particulate matter is one of the important reasons for the increase in human mortality, and it is also an important factor leading to major environmental problems such as global climate change, atmospheric photochemical smog events, acid deposition, and ozone layer depletion. [0003] After being inhaled, inhalable particulate matter will accumulate in the respiratory system and cause many diseases. Exposure to coar...

AI Technical Summary

Problems solved by technology

Additionally, particulate matter in the ambient air is a major cause of reduced visibility and can damage building surfaces

[0004] During mining and tunnel operations, a large amount of fine dust will be generated due to blasting and mechanical operations. Due to poor ventilation, the dust particles cannot be discharged in time, which not only affects the duration of the operation, but also poses a hazard to the health of workers.

In the prior art, when water spray is used alone for dust reduction, because the surface tension of water and dust particles is different, water cannot quickly wet the surface of dust particles, resulting in poor dust reduction effect. Even if water is sprayed in the form of mist, the dust reduction effect is not ideal

In order to protect the health of the operators, measures can only be taken to prolong the working time again, which not only delays the working hours, wastes a lot of precious water resources, but also increases the operating cost

If it is a combat readiness operation, it may cause more serious consequences