BATCH-OPERATED DRYER Russian patent published in 1995 - IPC

FIELD: drying materials. SUBSTANCE: drier has horizontal chutes with the perforated bottom, fan, system of sucking and pressure air ducts connected with the fan and chute respectively, lamps 5 with reflectors, by-pass air duct for returning a portion of the exhaust drying agent to the dryer. Chute 5 are mounted in one-row horizontal frame with cells for setting chutes without spaces. A box is secured to the Frame from the bottom. Glass cover 1 is pivotally secured above each chute. The lams are mounted at edges of the covers. The chute is separated with bottom vertical baffles 6 inside the box and with top baffles 7 between the covers. The top and bottom baffles are mounted through two chutes and shifted with respect to each other by one cell. The spaces above the chutes are interconnected in series. The end first chute is connected with the delivery air duct of the fan. The fan is connected with the sucking air duct of the fan. The perforation provided in the bottom of the odd chutes are arc-like slots. EFFECT: enhanced efficiency. 5 dwg