OPERATIONS STRATEGIES FOR VERTICAL SHAFT LIME KILNS
The calcimatic kiln or rotary hearth kiln is a circular kiln with a slowly revolving doughnut shaped hearth. In fluidized bed kilns finely divided limestone is brought into contact with hot combustion air in a turbulent zone usually above a perforated grate. An emerging process is the parallel flow regenerative(PR) lime kiln ( Parson 1988).