... contacting. Some dryers are designed in concurrent flow. Chips rotate and go to the low side under the effect of gravity. Chips ... as sawdust, wood chips, coal, coal slurry, slag, industrial waste, and clay stone. They are widely used in building materials, metallurgy ... dryer Heating furnace, main rotary drum, conveyors, draught fan, cyclone and etc. Technical parameters of hot air drum dryer Model(mm ...