DEVICE FOR EXTRACTION OF ABIETIC MASS Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: device comprises a casing with two sealed sections of cylindrical or conical shape installed on each other and connected by at least one pair of pipes for the passage of extract, extractant and vapors. One of said pipes interconnects the upper parts of sections while the other one, their lower parts. The device is provided with a mass agitator in the form of a vibration source (vibrator or pulsating pump) connected to the upper section, and at least three heat exchangers disposed in the upper, middle and lower parts of the device. Each section has the form of a space with external shell having external and common intermediate end covers. Installed inside said shell with a clearance is a partly perforated removable cup for loading the mass. The heat exchangers provide for controllable delivery of heat carrier from external sources. There also are other pipes, branch pipes and adjusting systems. The basic extractant is gasoline. EFFECT: higher yield of product and reduced time of treatment. 11 cl, 3 dwg