Tunnel and Underground Space (터널과지하공간)

Korean Society for Rock Mechanics and Rock Engineering (한국암반공학회)
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A Comparative Study on the Auxiliary Fan Pressure and the Ventilation Efficiency in Large-opening Limestone Mine Airways

대단면 석회석 광산 갱도 내 국부선풍기 승압력 및 통기효과 비교 연구

  • Park, Dongjun (Dept. of Energy and Mineral Resources, Dong-A University) ;
  • Kang, Hyeonho (Dept. of Energy and Mineral Resources, Dong-A University) ;
  • Lee, Changwoo (Dept. of Energy and Mineral Resources, Dong-A University)
  • Received : 2016.12.30
  • Accepted : 2017.01.18
  • Published : 2017.02.28
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Abstract

Most of the local limestone mines are developed as large-opening underground mines, while mine ventilation is heavily dependent on the natural ventilation and auxiliary systems, rather than the mechanical ventilation system using main fans. The current auxiliary ventilation system with fan and ducting requires optimization since enhanced deployment of diesel equipment demands higher airflow rate and the associated cost is expected to be too excessive for the local mine operators. This paper aims at optimizing the fan capacity for the working site ventilation through comparing the fan pressure in the mine airway and the ventilation efficiency of an axial-flow fan and a propeller fan developed in this study.

국내 지하 석회석 광산은 대부분 대단면 갱도로 개발되고 있으며 갱내통기는 주요 선풍기에 의한 통기방식보다는 자연통기 및 국부통기에 의존하고 있다. 국부통기는 국부선풍기와 풍관을 이용한 급배기 통기방식을 적용하고 있으나 대단면 갱도 특성과 갱내 굴진 운반장비의 디젤화에 따라 소요통기량이 대폭 증대하여 통기의 효율 및 경제성 확보가 주요과제로 대두되고 있다. 본 연구에서는 대단면 갱내 작업장 국부통기를 위한 선풍기 용량 최적화를 위하여 축류식 및 프로펠러 선풍기를 개발하여 갱내 승압력 및 통기효과를 비교 분석함을 목적으로 한다.

Keywords

References

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