HIGH-PROTEIN DAIRY PRODUCT DRYING PLANT Russian patent published in 1995 - IPC

FIELD: dairy industry. SUBSTANCE: plant designed to dry high-protein dairy products in a suspended layer of some inert carrying agent has a drying chamber. The chamber has a diffuser and a separator. The sections of the diffuser and separator are varying and constant respectively. The plant is provided with a slot-type gas distributor installed at the diffuser inlet. A deflecting device is mounted in the upper part of the separator. Nozzles for atomization of the product to be dried are mounted on two opposite side walls of the diffuser. The high-protein dairy product drying plant is also provided with a heat generator, a fan, cyclones, and pipelines. There is an additional chamber for mechanical fine cleaning of the inert carrying agent. Through inlet and outlet branch pipes the additional cleaning chamber is open to the drying chamber, and through a pipeline it is open to the plant cyclone. Inside this chamber there is a mechanical cleaner-stirrer. The latter is a vertical shaft with vanes. The deflecting device of the high-protein dairy product drying plant is a frame provided with a retainer. The frame is mounted for adjustable angle of slope, and it has swivel plates mounted stepwise. The fine mechanical cleaning chamber has a perforated bottom. The chamber is provided with a device for feed of air and creation of a pseudoliquified layer of the inert carrying agent. The bottom of the chamber and the lower vanes of the mechanical cleaner-stirrer are provided with pins directed toward one another. The pins are mounted for free passing as the shaft rotates. In the outlet branch pipe of the mechanical fine cleaning chamber there are a slide gate valve and a stem-type partition for control of the amount of inert carrying agent returned to the drying chamber and prevention of entry of agglutinated particles. At the diffuser base there is an set of additional air-operated atomizing nozzles adjustable for height and angle of slope. The nozzles are intended for continuous delivery of compressed air and recurrent delivery of product to be dried. The diffuser walls may be provided with a cooling casing. If this is the case, the diffuser walls have adjustable slots for directed air outlet. EFFECT: higher efficiency. 6 cl, 11 dwg