Experimental Study on Additive of the Foam Technology for Dust Control in Underground Coal Mines

Abstract:

The advantages of the dust control by foam are demonstrated, such as the high covering power, large contact area, high wetting speed and good isolation performance, which can control the dust efficiently. In consideration of wetting and foaming capabilities of the foam, a new kind of foaming agent with high foam expansion and wetting ability is developed after a large number of filtering and compound experiments by the ROSS-Miles method and water film flotation process method. After the experiments of the foaming ability and the wetting ability to different dust grains with different particle diameters, the results show that the new foaming agent can reduce the surface tension of solid and liquid materials rapidly with good foaming and wetting abilities. After the experiment of experiments, the best additive concentration of the new foaming agent is 0.5%, and a complete new experimental system is set up to produce foam, and the dust-control foam with high performance is produced using new foaming agent.

• Periodical: Advanced Materials Research (Volumes 430-432)
• Pages: 1486-1492
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.430-432.1486
• Online since: January 2012
• Authors: Wan Xing Ren, Zeng Hui Kang
• Keywords: Dust, Dust Control by Foam, Foam, Mixed

References

[1] Fan Weicheng, Yu Minggao. The Key Technology and Phase of Safety in Production of Energy and Chemical Engineering Industry. University of Science and Technology of China Press, 2002: 109-117.

[2] Fan Jingguang, Yang Li. The prevention of Dust Occupational Hazards in China[J]. Occupation and Health. 2004, 5: 20~23.

[3] Bo Yiyun, Lv Lin. The Present State of Dust Occupational Hazards in China[J]. Safety. 1998, 19(1), 4~7.

[4] Jiang Qingzhe, Song Zhaozheng, Zhao Mif, Ke Ming. The Science and Application of Surfactant[M]. China Petrochemical Press, 2006: 286~299.

[5] Xie Xingzhi, Fu Gui. Discussion on coal wetability measuring method [J]. Coal Science and Technology. 2004, 32(2): 65-68.

[6] Zhao Guoxi. The physical chemistry of surfactant[M]. Beijing: Peking university press, 1991: 57.

[7] HOLAND PM, RUBINGH D N. Mixed surfactant systems, ACS Symposium series: Vol. 501[M]. Washington DC: Am Chem Soc, (1992).

[8] Xu Yanli. Surfactant function[M]. Beijing: Chemic Industry Press, 2000: 71-75.

[9] R. C. DARTON, K. H. SUN. The effect of supfactant on foam and froth properties[J]. Institution of Chemical Engineers. 1999(l 77), Part A: 535~543.

[10] John van der Schaaf, Ruud G.C. Beerkens. A model for foam formation, stability, and breakdown in glass-melting furnaces[J]. Journal of Colloid and Interface Science. 2006(295), 218~229.

DOI: 10.1016/j.jcis.2005.07.068