Compound dust suppression agent for coal mine and preparation method of compound dust suppression agent

Abstract

The invention discloses a compound dust suppression agent for a coal mine and a preparation method of the compound dust suppression agent. The compound dust suppression agent comprises the following components in percent by mass: 0.05-1.00 percent of fatty alcohol-polyoxyethylene ether (JFC), 0.05-1.00 percent of sodium dodecyl benzene sulfonate (SDBS), 0.01-0.50 percent of polyacrylamide (PAM), 0.02-0.50 percent of polymeric aluminium (PAC) and the balance of water. The compound dust suppression agent disclosed by the invention has the advantages that the components are water-soluble materials, can be directly sprayed by using the original water spraying system of the mine, have wide sources, do not generate any harmful gases, and are non-toxic and tasteless; and the compound dust suppression agent is convenient for construction, and has better dust suppression effect of respirable dust in comparison that of the prior art.

Description

technical field [0001] The invention belongs to the technical field of comprehensive dust prevention in the coal mining process, and relates to a composite dust suppressant for coal mines and a preparation method thereof, which is specifically composed of a wetting agent and a coagulating agent. Background technique [0002] Coal dust is one of the major disasters that have plagued coal mine safety production for a long time. With the improvement of coal mining mechanization, the use of high-efficiency and high-power roadheaders, conveyors and local ventilation equipment not only greatly increases the concentration of mine dust in the air in the roadway, but also increases the proportion of fine dust. In some working faces, the respirable dust content can even stand up to 62% to 70% of the total dust mass. The commonly used spray dust suppression technology generally has the disadvantages of poor effect of reducing respirable dust particles and large water consumption, and ...

AI Technical Summary

Problems solved by technology

For more than half a century, with the continuous efforts of many researchers in the world, chemical dust suppressants have achieved great success in the dust control of the coal industry. Many formulas and patents have been studied, and they have played an important role in the dust removal of coal mines. However, the removal rate of these technologies for respirable dust is very low, and cannot meet the dust concentration standard in the air of the workplace stipulated by my country's coal mining enterprises