The beneficiation of coal through gravity separation plays a key role in industry, allowing for particle size distribution determination and separation of coal in to various sizes for future combustion in boilers, and separation of impurities. For a complete combustion an industrial suspension boiler using bituminous coal requires an average particle size of 45μm and 80 to 85% of particles to b...

Currently, despite the development of alternative technologies, main source energy is fossil fuels. A significant proportion fuels solid fuels, which, along with undoubted advantages, have a high fire hazard, including related to their ability spontaneous combustion. The process combustion has not been sufficiently studied, and methods combating it are still far from perfect. Self-ignition long...

Combustion profiles determined by TGA and experiments in a laminar entrained flow reactor (EFR) were used in this work to assess the relative combustion reactivities of different rank coals and their binary coal blends. The combustion behaviour of coal blends in TGA was greatly influenced by coal rank and the proportion of each component in the blend. Higher volatile coals exerted more influenc...

Coal spontaneous combustion often occurs in storage processes, especially for low-rank coal with high volatile materials, which may lead yard caught fire and thermal energy losses. Therefore, it is important to accurately predict the tendency under status real time. In order determine ignition point, existing methods are all using pulverized samples, adding special oxidant artificially then hea...