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  • Glossary of Mining Terms Rock, Mineral and Fossil ...

    Back The roof or upper part in any underground mining cavity. Backfill Mine waste or rock used to support the roof after coal removal. Barren Said of rock or vein material containing no minerals of value, and of strata without coal, or containing coal in seams too thin to be workable. Barricading Enclosing part of a mine to prevent

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    Raw materials: Iron ore, copper, steel slag, slag, river stone, gr: Capacity: 15-300t/h: Max feeding size: 240mm: Application: Building materials, water conservancy ...

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    Gold ore concentration plant. At the Gold ore Processing Plant, gols should be extracted from the ore. Read More

  • Company A-Z Mining Technology

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  • Glossary of Mining Terms Kentucky Coal Education

    A. Abutment In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment,