Liquid concentrating or drying plant for milk powder production of milk, is provided with liquid-tight container, semi-permeable membrane, cleaning rod and drawing solution

摘要

The liquid concentrating or drying plant is provided with a liquid-tight container (1), a semi-permeable membrane (2), a cleaning rod (3) and a drawing solution. The semi-permeable membrane is movable to the container inner wall and whose contact surface is waterproof. The semi-permeable membrane is only water-permeable.