DEVICE FOR WARMING UP AND DRAINING OF VISCOUS LIQUID FROM RAIL TANK CAR Russian patent published in 1995 - IPC

FIELD: materials handling facilities. SUBSTANCE: compressor builds up required pressure in receiver. Viscous liquid heated by heater creates vapor pressure in buffer chamber. Vapors pass along shortened drain branch pipe of adapter member through lower draining device of rail tank car and heat rail tank car. Liquid will flow down into chamber until it compresses spring by its weight and bracket presses on rod of first valve to let compressed air pass into chamber from receiver. Hot liquid under pressure passes both rail tank car and valve arrangement. With liquid forced out, buffer chamber moves up and first valve gets closed. Second valve opens and valve arrangement is changed over to build up rarefaction inside buffer chamber and simultaneously create pressure and air store in receiver. Under action of rarefaction liquid will flow from rail tank car into buffer chamber until the latter gets filled up, lowers down and changes over first and second valves for forcing out liquid. Process repeats. Device provides full automation of liquid draining from rail tank car owing to periodical action of air pressure and rarefaction on closed buffer chamber and forced operation of valve arrangement providing draining of warmed up liquid. EFFECT: increased capacity of device. 3 dwg