DEVICE FOR DRYING OF ELONGATED MATERIALS Russian patent published in 1999 - IPC

FIELD: mechanical engineering. SUBSTANCE: this drying device has drum and perforated cylinder which is located coaxially inside drum. One end of cylinder is connected with source of heat carrier supply. Central tube is intended for branching away of used heat carrier. Installed inside perforated cylinder and coaxially with it is facility for regulating mode of delivery and branching-away of heat carrier. This facility can move reciprocally and it is made in the form of truncated cone. Small base of truncated cone is turned towards blind end of drum. Perforations of cylinder are arranged with pitch which increases in direction from inlet pipe union towards opposite end of drum. Diameter of cylinder perforations reduces in same direction. Aforesaid embodiment of drying device allows for ensuring more uniform heating of working surface. EFFECT: higher efficiency. 1 dwg