Steam dryer

Abstract

The invention concerns a steam dryer for evaporating of water and/or other liquid from wet materials or evaporating of materials in a liquid state. The dryer comprises a cylindrical rotatable drum having a feed end and a discharge end; a plurality of steam pipe elements inserted in the drum, wherein each steam pipe element comprises axial pipes parallel to a longitudinal direction of the drum and interconnected by transverse intermediate pipes, and the steam pipe elements are rotatable with the drum; a stationary end chamber and a steam distributor manifold arranged at the discharge end area of the drum; conveyance means disposed at the feed end of the drum for supplying the wet materials or the materials in a liquid state into the steam dryer for evaporating. The stationary end chamber is arranged at the discharge end area of the drum in the axial direction between the discharge end plate and the feed end plate such that the discharge end plate is situated outside of the discharge end chamber. The discharge end chamber surrounds a portion of the drum and it has a lower opening to discharge dried material or remaining liquid and an upper opening to discharge vapour from the drum. The steam distributor manifold is arranged at the discharge end of the drum outside of the discharge end plate.

Description

technical field [0001] The invention relates to a steam dryer for evaporating water and / or other liquids in wet materials or evaporating liquid materials, comprising: [0002] A cylindrical rotatable drum having an outer shell having an inner surface and an outer surface, the drum having a feed end constructed and arranged to receive wet or liquid material into the drum and configured and arranged to receive wet or liquid material from the drum discharge end for exhaust gas and dry material or residual liquid, the feed end is defined by a feed end plate, the discharge end is equipped with a discharge end plate, [0003] a plurality of steam pipe elements, each steam pipe element comprising two axial pipes parallel to the longitudinal direction of the drum and interconnected by a plurality of longitudinally spaced transverse intermediate pipes, the steam pipe elements being constructed and arranged to be inserted into the interior of the drum , and rotate with it, [0004] a ...

AI Technical Summary

Problems solved by technology

Another problem with the US6415527 drum stems from the combined structure of the steam distribution manifold and discharge end chamber

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