SU1322542A1 - Ion-exchange column - Google Patents

Abstract

The invention is intended for carrying out processes of desorption in solutions with the use of erne-nous nonite with their contacting. The purpose of the invention is to increase productivity by means of and "tensiating the process of replacing the backfill. To do this, in the case of a column, a distribution device in the form of a gravel bed is placed in secluded, perforated pallets (P) 19 closely adjacent to each other. R 19 are installed on a platform 14, which rotates around the vertical axis of the column. Platform 14 is reinforced with a series of pairs of parallel guides 15 according to the number P 19. In each pair of guides 15 there are perpendicular rollers 18 installed to facilitate the radial movement of P 19. In housing 1, at level 19, there is a hatch 25 for unloading so that with its open position, it is possible to remove the P 19 with the drain and replace it with another P 19 with a refurbished charge, while the ion remains in the column and is retained with a grid of 11, 1 C. f-ly, 3 ill.

Description

The invention relates to the ion exchange, carried out in columns, more precisely to sorption-desorption apparatus with countercurrent co-activation in the system of tvirdoy body, rt can be used in chemical, hydrometallurgical. food industry, especially for solutions containing solid matter.

The purpose of the invention is to increase productivity by intensifying the replacement process of a flashing.

FIG. 1 shows the proposed ion exchange column with a section of the lower part; in fig. 2 is a section A-A in FIG. 1, on an enlarged scale; in fig. 3 shows a section B-B in FIG. 2 (on an enlarged scale).

Ion-exchange sodefjit column vertical grating cylindrical body 1 with a conical bottom 2. In the upper part of body 1 there is a nozzle 3 for introducing an ion exchanger nozzle 4 for evacuating the spent solution And a nozzle 5 for evacuating the ion exchanger connected with an airlift b inside the column b. In the conical bottom 2 there is a pipe 7 for introducing the initial solution and a pipe 8 for draining the solution. Inside the column in the lower part of the inner surface there is a protrusion 9 in the form of a support ring on which it is fixed.

15

fractions backfill 21 passing solution. .B of the end bilge to the wall of the pallet 19 is placed a handle 23 and two side pockets 24 for setting the pivot arm. Outside the column, at the level of the pallets 19, there is a hatch 25 for unloading the backfill 21 of a rectangular shape, on the bottom wall 26 of which is reinforced in the same way as on the platform 14, the rollers 18, forming a single slant for the runners 20 under-. Don 19, to facilitate the retrieval and return of ps ddons.

The column works as follows,. t

Ionite enters from above through nozzle 3, passes from top to bottom in a dense layer and with the help of airlift 6 removes 20 of the short-circuit of the column through nozzle 5. From the bottom through nozzle 7 feedstock is fed, which passed through the switchgear - backfill 21, is evenly distributed over the section

25 and after contacting with the ionite through the pipe 4, the impurities entering with the solution are deposited in the bed 21, collecting the pores and making it difficult for the solution to pass. WHEN not.

G) there is enough pressure to feed the solution, stop the flow of the ion exchanger and the solution, open the nozzle 8 and drain the solution remaining in the column, while

The ion exchanger remains an 8 column and a retention grid 10 with a chalk-jj grid 10 and a grid of 1K Open- located on it. a cell net 11 holding the hatchway 25 of the unloading and the handle 23

the pallet 19 is moved out of the column; In this way, it is easily moved along the rollers 18, and in the code from the hatch 25 of its group, 40 e of the lifting device is removed from the zone of the column. To speed up the process of replacing the backfill 21, the same pallets with fresh backfill are prepared in advance (you can also remove all the undergrain ion exchanger filling the column. The bearing 12 in which the vertical shaft is fixed is fixed to the bottom of the grille 10. 3. The lower end of the shaft 13 is mounted pivoting platform 14 in the form of a disk with windows, On platform 14, pairwise parallel guides 15 "having

grooves 16 for positioning the ends of the 17 rods, free the infrared from the old eld 21 and replace it with a fresh one, and then insert the pallets 19). A freshly filled pan 19 is inserted, with the skid 20 being placed between

18, which are perpendicular to the Guides 15. On the platform 14, pallets 19 are installed in the form of sectors having perforated bottom near the wall.

To the bottom of the pallet 19, the cloth is attached with 50 guides 15 and the pallet is pushed in

The longitudinal cylindrical skids 20, which are included between the guides 15, the Pallets 19, are installed 1L close to each other, and the backfill 21 is placed in them near the crushed quartz or gravel, which serves as a distribution device. On top of the pallets can be closed with a perforated lid 22, which prevents small

0

five

fractions backfill 21 passing solution. .B of the end bilge to the wall of the pallet 19 is placed a handle 23 and two side pockets 24 for setting the pivot arm. Outside the column, at the level of the pallets 19, there is a hatch 25 for unloading the backfill 21 of rectangular shape, on the bottom wall 26 of which is reinforced in the same way as on the platform 14, the rollers 18, forming a single slant for the runners 20 under-. Don 19, to facilitate the retrieval and return of ps ddons.

The column works as follows,. t

Ionite enters from above through nozzle 3, passes from top to bottom in a dense layer and with the help of airlift 6 removes 0 from the short circuit of the column through nozzle 5. From the bottom through nozzle 7, feedstock is fed, which passed through the switchgear - backfill 21, is evenly distributed over the section

5 and after contacting with yonite, the column is discharged through the pipe 4. Impurities coming in with the solution are deposited in backfill 21, collecting pores and making it difficult for the solution to pass. WHEN not.

G) there is enough pressure to feed the solution, stop the flow of the ion exchanger and the solution, open the nozzle 8 and drain the solution remaining in the column, while

19, which slides easily over the rollers 18, occupies a strictly defined place, which ensures that there is no gap between the side walls 55 of the pallets 19, t, e, they fit snugly to eliminate the flow of the solution past the backfill 21. Insert the pivot arm into the side pocket 24 and rotate pan 19 by

or counterclockwise, until the next pallet 19 is backfilled with hatch 25 and backfilling 21 needs replacing. These operations are repeated until tex is replaced until all pods are replaced. Then the hatch 25 is closed, the nozzle 8 is closed, and the nozzle 7 is closed again; the initial solution is supplied, that is, the column begins to function again. The poddoAa removed from the column with backfill 21 (or just the palletized backfill) are sent for regeneration. The regenerated backfill pallets are stored until the next stop of the column for ayena switchgear.

Claims (2)

Invention Formula I 1, The ion-exchange column, comprising a casing, mesh drainage, nu-MiFioe on the support grid, a distribution bulk device, branch pipes for input and output of the contacting phases and a hatch for unloading filling, characterized in that, with a performance chain due to the intensification of the filling replacement process, the support grid is made as separate sectoral pallets, installed with the possibility of rotation around the axis of the column and radial movement through the hatch to unload the filling. 2. A column according to claim 1, characterized in that it is provided with a turntable AND placed on it pairs of guides with rollers, with the pallets mounted on the rollers. / " 25 f5 Vb I ..- / fV. . .       t, a // -V " .: ./ "." . . . .:. "." lujL i., j xpq t9 sixteen S / v f: . . : |Л | 1ШЛЛШ4.уч 111, ЖаТ1 S 20 17 / Compiled by L, Epstein. . Editor L. Kurasova Tehred M. Didyk h - Proofreader L. Pilipenko --- Order 3846Discount 519Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow,, Raushsk nab ,, d. 4/5 Production and printing company, Uzhgorod, st. Design, And mj