FIELD: chemical engineering. SUBSTANCE: arrangement for conducting processes of leaching, washing, and dissolution upon contacting a liquid with a solid granular material consists of a body, systems for distributing flowing medium, systems for loading and discharging granular material, and a stirring means. In the body, a straight-line and a cone-like branch pipes 2 and 3 are mounted. Cone-like branch pipe 3 is radially perforated and between the two branch pipes a window is available. An anchor ring is placed on branch pipes 2 and 3, which is covered with ribbons 7 passed through central opening of the anchor ring. The first ends of ribbons are fastened to branch pipes whereas the second ones are wound onto a reverse drum mounted in cone-like branch pipe. EFFECT: arrangement fit for miscellaneous applications is proposed.
