Clean coalpreparation barriers in Poland ScienceDirect
Mar 01, 2003· 3. State of coalpreparation technology in Poland. There are 45 coalpreparation plants in Poland. In 1990–1999, 12 new preparation plants were built, out of which 11 are new coalfines preparation plants. In all coalpreparation plants, there is a section for the preparation of middle and coarse grains (above 20 and 10 mm, respectively).