Steam Indirect Heating Industrial Drying Equipment For Drying Sludge

Equipment Introduction

Heating pipes through steam pipe indirect heating dryer provides required heat for drying wet material,

which is one kind of heat conduction type drying equipment, open type and closed type are included. It is

widely applied in chemical, petroleum, light industry, metallurgy, building materials industries, etc. Main

difference between steam pipe indirect heating dryer and normal rotary dryer is that it equips with steam

heating pipes inside of the cylinder, 1-3 circles of pipes are installed in concentric circles inside of the

dryer cylinder, one end is installed above drainage separation chamber of pipes collecting box at the

outlet of the dryer. The other end is installed on tube sheet of the ventilation head with thermal

expansion structure. Seam, hot water and other heat carriers are fed in through steam journal pipe and

distributed to each heating pipe through pipes collecting box. While, condensate water gathers at

header because of dryer slope and then discharge at steam journal pipe. Material is dried by lifting and

mixing of heating pipe and moved from higher side to lower side because of dryer slope. Finally, it

discharges at the end of discharge funnel. Water vapour goes out by induced draft fan or natural

ventilation. If it is organic solvent after vaporization, it can be recycled by seal system. Inert gas can be

used repeatedly.          

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