Development of cement dust suppression technology during shotcrete in mine of China-A review. (September 2018)

• Record Type: Journal Article
• Authors: Chen, Lianjun; Li, Pengcheng; Liu, Guoming; Cheng, Weimin; Liu, Zhaoxia
• Is Part Of: Journal of loss prevention in the process industries. Volume 55(2018)
• Page Start: 232
• Page End: 242
• Publication Date: 2018-09
• Subjects: Development -- Dust suppression -- Shotcrete -- Control technology; Chemical industries -- Safety measures -- Periodicals; 660.2804
• DOI: 10.1016/j.jlp.2018.07.001
• Languages: English
• ISSNs: 0950-4230

Abstract

Abstract: The shotcrete has become a major technique in the support construction of underground mine. Unfortunately, enormous amounts of cement dust may be produced during shotcrete because of deficient mixing of materials and high jet speed. At present, in term of dust suppression, the dust generated from shotcrete is easily ignored when compared with the rock or mine dust in mine exploitation. The paper summarizes the development of cement dust suppression technology during shotcrete. The component and pathological damage of cement dust was analysed. The diffusion of shotcrete dust was uncovered as well as alkaline particle distribution. Efforts to control and reduce the shotcrete dust were done, including developing new shotcrete machines, optimizing process and using new material technology and so on. Finally, challenges of shotcrete proposed in special roadway environment of China' mine still exist and further efforts need to be made. Highlights: Development of suppression technologies of shotcreting dust were summarized in mine of China. The main dust sources of shotcreting dust were analysed as well as its pathological damage. The diffusion law of shotcreting dust was uncovered as well as alkaline particle distribution. Efforts to control and reduce the shotcreting dust were done, ranging from developing new apparatus to material technology. Challenges of dust suppression in special roadway environment of China' mine were proposed.