************ To * nu *** ho *** ni * shi * shi * ************** ne *** ni * no * ** ko **

摘要

An improvement in a method and apparatus for conveying and/or heating coal particles in a dense phase flow through transfer lines wherein the velocity of the flow through the lines is controlled by a progressive enlargement of line size during indirect heating and/or transfer in the lines thereby minimizing erosion of the transfer lines by the coal particles.