At the present time, computer models for coal combustion are not sufficiently accurate to enable the design of combustion plant or the selection of a coal based on combustion behaviour.
The most influential process parameter appeared to be coal particle size which has been the primary criteria used for selection of particular process for coal washing.
This investigation presented a method for variable selection and based on that selection, presented considerable models for the prediction of coal flotation responses (flotation rate constant and recovery).
The chapter will give a general approach to the selection of equipment for the different needs of coal applications.
The path selection of active objects in the coal mine tunnel has a strong spatial temporal correlativity.
Since there was no widely acceptable criterion for selection, the coal mines were ranked in terms of the quantity of coal resources, and the mines ranked the lowest were forced to shut down.
The system design of coal washing includes various stages including conception, site selection, data collection, finalisation of flowsheet and layout, engineering and commissioning.
Samples of coal were obtained from the residents and from selected coal pits that were easily accessible from the villages.
Full rails, full of coal.
Nearby, there is a mound of coal.
