METHOD OF HEATING AND DRAINING OF THICK AND FROZEN PRODUCTS FROM VESSEL Russian patent published in 2013 - IPC B65D88/74 B65G69/20 

FIELD: transport.

SUBSTANCE: invention relates to discharging of thick and frozen products, i.e. oil products, molasses, fats, etc., from whatever tanks. Proposed method consists in extracting cold product from tank bottom, its circulation heating in external heat exchanger and feeding heated product to several tank points, one being located at cold product extraction channel inlet. Heated product is fed at flow rate sufficient fluidity of cold product for pumping it in circulation circuit. Remained heated product is fed to points distant from cold product extraction points. When all product is heated circulation heating is terminated to drain all product from the tank. In draining of heated product, at temperature decrease at heat exchanger outlet in heat carrier return circuit below minimum tolerable level, product circulation heating is resumes at feed of heat carrier at minimum flow rate sufficient for prevention of heat carrier temperature drop below permissible level.

EFFECT: ruled out clogging of heat carrier return circuit.

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