... cement machinery and cement production line in China Grate Cooler is a kind of quench cooler.Its ... clinker which is laid in levels on the grate plates with cold wind from air blower.Temperature ... secondary air in the kiln,but also be heat source for drying coal in the coal mill. ... rotary kiln, titanium pigment rotary kiln,mine equipment,grate cooler, cement technology,complete set of cement equipment, ...