MEMBRANE APPARATUS Russian patent published in 2017 - IPC B01D65/02 B65D88/68 

FIELD: food industry.

SUBSTANCE: invention relates to separation, concentration of liquid food media using membrane methods and can be used in food, pharmaceutical, microbiological industry, as well as at plants of agroindustrial complex. Membrane apparatus comprises a housing, in form of a cylinder. On one side of housing there is a pipe to feed liquid medium, on other pipe to discharge finished product. On outer wall of housing there is a pipe to discharge filtrate. Inside housing there is a coaxially arranged semipermeable membrane. In membrane there is a device, consisting of a rod, on which there are hollow cone-shaped elements with circular perforation on side surface made at an angle to flow direction. Initial solution is forced via pipe into internal channel of membrane. Under pressure there is a separation process on a membrane. On inner surface of membrane a layer held substances forms, which reduces efficiency of process. Stream passing through holes in cone-shaped elements is divided into jets with increased pressure, directed towards inner wall of membrane. Under action of pressure jets and flow turbulence layer of held substances is washed off from membrane surface. Filtrate passing through membrane is discharged via pipe. Remaining part of initial solution is discharged via pipe. Membrane is cleaned simultaneously with concentration of medium.

EFFECT: higher efficiency of device by removal of layer of held substances on a membrane through action of directed flow of medium.

1 cl, 1 dwg