Browse > Article

Performance Experiment and Evaluation of Water jet by the Explosives Position in Water-bag blasting using the Mist Guider  

Kim, Seung-Jun (전남대학교 에너지자원공학과)
Kim, Jung-Gyu (전남대학교 에너지자원공학과)
Ko, Young-Hun (전남대학교 에너지자원공학과)
Jung, Seung-Won (전남대학교 에너지자원공학과)
Baluch, Khaqan (전남대학교 에너지자원공학과)
Jin, Guochen (전남대학교 에너지자원공학과)
Yang, Hyung-Sik (전남대학교 에너지자원공학과)
Publication Information
Explosives and Blasting / v.36, no.3, 2018 , pp. 29-38 More about this Journal
Abstract
With the recent industrial developments and economic development nationally, there has been a rapidly increasing demand for the use of underground space as locations for establishing social infrastructure and various convenience facilities. In this study, a mist-control system was developed to reduce the generation of dust in underground blasting. To enhance the dust-reduction effect, a guiding device was developed which is capable of adjusting the direction of the spray toward's the blasting face of mine or tunnel. A numerical analysis was performed by using the AUTODYN software, and results were compared with those published in basic experiments. To verify the mist-diffusion effect according to the position of explosives in a water bag, numerical analyses were conducted for the following cases: Explosives were set in the middle, and in the bottom of the water bag. The optimum condition was external detonation and center charge. The mist particle size from the result was suitable for the reduction of dust after blasting in underground mine and tunnel.
Keywords
Water bag; Mist guider; Reducing dust; Detonating cord; Mist particle size;
Citations & Related Records
연도 인용수 순위
  • Reference
1 고영훈, 2016, 발파해체 분진제어를 위한 워터튜브 분무확산 평가 및 적용, 박사학위, 전남대학교, 대한민국.
2 류장진, 장재길, 이병규, 정시정, 김성진, 김광종, 2003, 터널건설공사시 발생분진의 입경특성, 한국산업위생학회지, Vol 13, No. 3, pp. 107-112.
3 Beck T. W., Seaman C. E., Shahan M. R and Mischler S. E., 2018, Open-air sprays for capturing and controlling airborne float coal dust on longwall faces, Minerals Engineering, Vol 70, No. 1, pp. 42-48.
4 Bello. D., M. A. Virji, A. J. Kalil, and S. R. Woskie, 2002, Quantification of Respirable, Thoracic, and Inhalable Quartz Exposures by FT-IR in Personal Impactor Samples from Construction Sites, Applied Occupational and Environmental Hygiene, Vol. 17, No. 8, pp. 580-590.   DOI
5 Cooper, C.D. and F.C. Alley, 2002, Air pollution control ; A design approach, Waveland press, Inc, pp. 209-217.
6 Liu, F, 2011, Research on blasting water mist reducing dust resulting from blasting demolition, Doctoral dation, Anhui University.
7 McDonell, I, 2009, Dust control on longwall faces by fine mist (Atomising) sprays - can they really work, The AusIMM Illawarra Branch 2009 Coal Operators' Conference, pp.248-250.
8 Wang Pengfei, Tan Xuanhao, Cheng Weimin, Zhou Gang, Liu Ronghua, 2018, Dust removal efficiency of high pressure atomization in underground coal mine, International Journal of Mining Science and Technology