Fecha de publicación: 29/09/2023 Fuente: WIPO "processing tomato" The utility model discloses a tomato juice membrane concentration device which comprises a main body unit, a membrane concentration unit and a membrane concentration unit, the processing unit comprises a sleeve plate, a filter membrane is arranged on the sleeve plate, reciprocating lead screw pipes are symmetrically and rotatably inserted into the shell in a penetrating mode, a movable sleeve is arranged on the reciprocating lead screw pipes in a threaded mode, a scraping plate and a brushing plate are fixedly connected to the movable sleeve, a plurality of round holes are formed in the reciprocating lead screw pipes, a rotating rod is rotatably inserted into the shell in a penetrating mode, and the rotating rod is fixedly connected with the scraping plate and the brushing plate in a threaded mode. A transmission assembly is arranged between the rotating rod and the reciprocating lead screw pipe, and a driving assembly used for driving the rotating rod is arranged at the top of the shell. By starting the motor, the reciprocating lead screw pipe rotates, the moving sleeve is driven to move up and down, the scraping plate and the brush plate are driven to move up and down, the scraping plate and the brush plate sweep the surface of the inner wall of the filter membrane and the surface of the inner wall of the shell respectively, pulp is prevented from being attached to the surface of the filter membrane and the inner wall of the shell, and permeation of water in tomato juice is guaranteed; and the concentration efficiency of the device is improved.