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      In order to fully recover oxidized coal, miscellaneous coal and other low-quality coal resources, Antaibao open pit coal mine introduced the ZM600 High-efficiency mineral separation system of Shenzhou Group in 2018 to build a dry coal preparation plant with a processing capacity of 3.0mt/a. The calorific value of the separated block cleaned coal is 4800kcal / kg as chemical coal and the final cleaned coal is 4200kcal / kg as power coal. While increasing the overall economic benefits, it greatly reduces the storage area of miscellaneous coal, reduces the transportation and drainage cost and eliminates the hidden danger of spontaneous combustion.


      ITEM

      yield Wt%

      ASH Ad%

      TOTAL MOISTURE

      sulfur Std%

      Qnet,ar,Kcal/kg   NET CALORIFIC VALUE Qnet,ar,Kcal/kg   

      RAW COAL

      100

      43.32

      4.7

      1.87

      2621

      LUMP CLEAN COAL

      10.52

      15.84

      4.2

      1.09

      4010

      FINE CLEAN COAL

      52.96

      24.97

      6.3

      1.18

      3628

      REJECT

      36.52

      77.86

      2.7

      3.10

      761

      ANTAIBAO OPEN PIT COAL MINE OF CHINA COAL PINGSHUO GROUP

      TIME: 2022-03-07
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