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Coal steam type rotary dryer

Capacity(t/d):17-400

Initial moisture(%):35-50

Drying moisture(%):12-15

Drying temperature(℃):110-250℃

Main power(kw):20-140

Product introduction:

Conduct oil heat (steam) drying drum dryer belongs to indirect heating mode, the heat conduction oil or steam drying heat, this type of dryer has low energy consumption of drying, the safety drying process,the material is not affected by heat source pollution etc.,which are widely used in the biomass, food, feed, fertilizer, bad slag chemical industry, medicine, coal, mining and other small particles or weakly caking dry powder material.

 

Product working principle:

Heat conduction oil steam drum dryer, mainly composed of tube type heat exchanger, heat sources in and out center pipe, rotary drum, feeding and discharger of the machine, induced draft fan, dust collecter and distribution cabinets.Wet material enters into the dryer, uniformly distributed in the roller feed plate and the column tube turning, with a full contact with hot  conduction oil (steam)  tube type heat exchanger, realizing heat transfer, mass transfer (110-250 ℃), constant temperature drying, water vaporization and scattered with the air emissions, gradually reduce the moisture from the material, the material has finished the drying process.

Product Features:

1. With the single rotary drum dryer of high mechanization degree,which resistance to overload ability, large processing capacity,it can be the characteristics of continuous operation;
2.Heating 300 ℃ conduction oil (or steam) in the dryer after heat exchange, low temperature heat conduction oil (condensate water) back into the heat conduction oil furnace (steam boiler) through reheating,with circulation use,and make full use of heat and no loss, drying energy consumption is lower than common dryers of 20-40%;
3. The heat conduction oil (steam) drying drum dryer belongs to indirect heating mode, do not contact directly material and heat source, drying process with closed operation,the material after drying is clean without any pollution;
4. 110-250 ℃ drying process temperature can adjust according to the material properties,which can be used in a downstream drying process,it also can use counterflow drying process,which belongs to the low temperature, constant temperature drying,which the material drying process is more secure;
5. Good structure and simple operation,the material through cylinder with small resistance,smooth running and easy operation.
6.Wide application range and good uniformity of product drying.

Technical parameters:

Model DLHT1210 DLHT1412 DLHT1615 DLHT1918 DLHT2218 DLHT2523 DLHT2925
Capacity(t/d) 17-40 28-61 50-100 65-150 88-200 132-300 180-400
Evaporation capacity(t/h) 0.3-0.4 0.5-0.6 0.9-1.0 1.2-1.5 1.6-2.0 2.4-3.0 3.3-4.0
Initial moisture(%) 35-50
Drying moisture(%) 12-15
Drying temperature(℃) 110-250℃
Main power(kw) 20-28 25-35 30-50 40-60 50-80 70-100 90-140
Covering area (m2) 5×15 5×18 6×20 7×25 8×25 10×30 10×35
Note: Increase the external fin tube heat exchanger of the dryer, drying capacity and water evaporation capacity increased 40-80%