APPARATUS AND METHOD FOR TUBE DRYER

摘要

A dryer having an inlet end, a discharge end, an exterior shell, a discharge end manifold and an inlet end manifold. The preferred dryer also comprises a primary tube adapted to convey heat transfer oil to and from the dryer, a discharge end secondary tube which is in fluid communication with the primary tube and the discharge end manifold, and an inlet end secondary tube which is in fluid communication with the inlet end manifold. The preferred dryer further comprises a plurality of tertiary tubes which are in fluid communication with the discharge end manifold and the inlet end manifold, a heat source that is adapted to heat the heat transfer oil, and a sweep gas assembly. The preferred method comprises providing such a dryer, introducing heat transfer oil into the dryer, introducing wood materials into the dryer and drying the wood materials.

主权项

1. A dryer having an inlet end and a discharge end, said dryer comprising:
(a) an exterior shell; (b) a discharge end manifold disposed near the discharge end of the dryer; (c) an inlet end manifold disposed near the inlet end of the dryer; (d) a primary tube, said primary tube being adapted to convey heat transfer oil to and from the dryer; (e) a discharge end secondary tube, said discharge end secondary tube being in fluid communication with the primary tube and the discharge end manifold and being adapted to convey heat transfer oil; (f) an inlet end secondary tube, said inlet end secondary tube being in fluid communication with the inlet end manifold and being adapted to convey heat transfer oil; (g) a plurality of tertiary tubes, said plurality of tertiary tubes being in fluid communication with the discharge end manifold and the inlet end manifold and being adapted to convey heat transfer oil; (h) a heat source adapted to heat the heat transfer oil; (i) a sweep gas assembly adapted to convey gasified water and hydrocarbons from the inlet end of the dryer to the heat source;wherein the heat transfer oil conveyed in the plurality of tertiary tubes flows in the same direction and the heat transfer oil conveyed in the plurality of tertiary tubes is adapted to conductively transfer heat to material in the dryer.