FIELD: leaching, washing and dissolving processes with contact of liquid and solid granular material. SUBSTANCE: device has body, fluidal medium distribution systems, granular material loading and discharging systems, and mixing member. The body houses coaxially mounted chamber with vertical branch pipe housing mixing member in the form of power operated reversible drum with flexible hose wound on it. Free end of hose is turned inside out and is fastened inside the branch pipe. The chamber communicates with working agent feeding system. EFFECT: enhanced operating capabilities. 1 dwg
