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Coal Mining (1978) / Chapter Skim
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COAL PREPARATION TECHNIQUES
Pages 47-50

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From page 47...
... Coal beneficiation plants use a variety of equipment to separate the lighter coal from the heavier rock and clayey materials and heavy media cyclones, jigs, tromp vessels, hydrocyclones, tables, and froth flotation are common. After the coal and waste material are separated, various cleaning, water-removal, and clarifying processes (e.g..
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From page 48...
... New and better processes for dewatering coal and for clarifying process and waste waters are being investigated, and new developments are continuously being put into practice, while water control systems for these processes have high capital and operating costs, they also maximize the recirculation of plant processing water and minimize or completely eliminate the discharge of waste waters into the natural streams. Sulfur control is now and will continue to be a prime factor in the development of new coal properties, and western coal with its low sulfur content will play a big part in new steam coal markets.
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From page 49...
... U.S. Bureau of Mines, Meekly Coal Report, April 2i*
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Key Terms

  • eastern coal
  • heat content
  • steam coal
  • metallurgical coal
  • coal beneficiation

  • western coal
  • waste waters
  • mined generaly
  • coal frequently
  • maximizing pyritic

  • beneficiation plants
  • economic considerations
  • plant processing
  • western subbiturainous
  • drying installations

  • subbiturainous coal
  • heavy media
  • coal markets
  • sulfur control
  • moisture content

  • dust control
  • meekly coal
  • commercial basis
  • commercial drying
  • spontaneous combustion

  • lighter coal
  • average eastern
  • media cyclones
  • coal properties
  • prime factor


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