ABSTRACT
For plants processing pulverized coal for combustion, it may be worth performing an additional separation step. The most common limitation on such a separation is that water cannot be added, as too much water is likely to be retained and absorb energy from the combustion. This chapter discusses the primary dry separation methods available for separating coal, including pinched sluices, aerodynamic separators, and dry jigs. The focus is on the principles of separation which can be used without a liquid phase, and a rough overview of the equipment which has been developed to take advantage of that. Electrostatic and magnetic separations, which can also be performed as dry separations, are discussed in their respective chapters.
