ELECTRO-MEMBRANE APPARATUS OF PLANAR CHAMBER TYPE Russian patent published in 2018 - IPC B01D61/42 B01D61/14 

FIELD: technological processes.

SUBSTANCE: invention relates to the field of separation, concentration and purification of solutions by electro-microfiltration, electro-ultrafiltration, electron-nanofiltration, electro-osmosis filtration. Electro-membrane apparatus of a planar chamber type consisting of alternating dielectric chambers of the shell with a "protrusion" and with a "socket", respectively having rectangular overflow windows, in which they are laid for their entire length and width in the form of a continuous web on the top and bottom of one side of the alternating dielectric chamber of the shell with a "protrusion" and with a "socket" along the other successively drainage grids, monopole-porous plates, electrode-cathode and electrode-anode, porous substrates from the paper, cathode and pre-anode membranes respectively to the outer perimeter of the gaskets, with the exception of those places of porous substrates from the paper, cathode and pre-anode membranes, where there are rectangular inserts 2 mm thick connecting monopolar-porous electrode-cathode plates and electrode-anode, in the space of a rectangular transfer window of alternating dielectric chambers of the hull with a "protrusion" and with a "socket", an intermembrane channel is formed, which is full width and height under the gasket and from the gasket to the gasket on one side of the alternating dielectric chambers with the "protrusion" and "socket" on the other is filled with polymer filling, the intermembrane channel is also formed in those places, where the grid-turbulizer is located, the inner surfaces of the dielectric flanges of the body are provided with stacked drainage grids, monopolar-porous plates, cathode electrode, porous substrates of the paper, cathode membranes, respectively, on alternating dielectric chambers of the body with a "protrusion" and with a "socket" there are two-sided holes for supplying electric wires, filled with a polymeric compound from the negative and positive terminals of the device for supplying a direct electric current, connected to the drainage grids, on the inner side of the dielectric flanges of the housing there is an opening for supplying an electrical wire from the negative terminal of the device for supplying a constant electric current to the drainage grid and a channel for withdrawing the cathode permeate with a dielectric grid over the entire area, located in the same locations as on alternating dielectric chambers of the shell with a "protrusion" and with a "socket", there are channels for withdrawing the near-cathodic and pre-anode permeate and a hole for supplying electric wires, a connection for withdrawing the near-cathode and pre-anode permeate depending on the connection scheme "minus" or "plus", bolts, washers and nuts, inlet and outlet connections for the separated solution, channels for input and output of the separated solution, respectively, characterized in that the inlet and outlet connections of the separated solution together with the inlet and outlet ports of the separated solution are located on the first and last dielectric chambers of the housing with a "socket" in front and rear respectively with respect to the location of the apparatus, the channels of input and output of the separated solution coincide with the openings of the first and last dielectric sleeves of the same length and width as the gaskets between which they are clamped in the intermembrane channel, on the intermediate dielectric sleeves also clamped in the intermembrane channel, such holes are absent, along the inner perimeter of the dielectric bushings there are central rectangular sockets 0.5 mm from their thickness and one third of their width, and the ends of the grid-turbulizers are inserted into these central rectangular sockets along the entire inner perimeter of the dielectric sleeves, representing a set of cuts at an angle of 90 degrees in one plane of the cuts of cation exchange and anion exchange membranes having centered rectangular cuttings 2 mm in length and wider and 1 mm in thickness between adjacent interlaces, directed toward cathode and anode membranes, respectively, the grid-turbulizer in the intermembrane channel is rotated by an angle of 45 degrees.

EFFECT: decreased hydraulic resistance in the apparatus, increased intensity of turbulizer of the solution to be separated, increased efficiency of separation of the solution.

1 cl, 8 dwg