An Engineering/Economic Analysis of Coal Preparation Plant Operation and Cost.

摘要

This report presents a discussion of the major physical coal preparation processes currently available and the equipment used by each to effect a separation of the coal from the undesirable constituents such as ash and pyritic sulfur. Further,eight specific examples of a wide range of actual preparation plants are examined from the standpoint of capital and operating and maintenance costs to develop a total cost of coal cleaning for each plant. The preparation plants examined were all operating as of mid-1977and span a spectrum of cleaning processes from a relatively simple jig plant to rather sophisticated circuits utilizing heavy media,froth flotation,and thermal drying.