Crushing and Cleaning Coal The usual procedure followed in the preparation of bituminous coal is to remove as much of the rock as possible by passing the coal over a scalping screen or a picking table.
(Cleaning Coal The usual procedure; followed; L:in the preparation of bituminous coal) (Crushing and Cleaning Coal The usual procedure followed in the preparation of bituminous coal; is; to remove as much of the rock as possible by passing the coal over a scalping screen or a picking table)
Cleaning Coal The usual procedure Crushing and Cleaning Coal The usual procedure followed in the preparation of bituminous coal
followed is
L:in the preparation of bituminous coal
to remove as much of the rock as possible by passing the coal over a scalping screen or a picking table