SU1502079A1 - Ion-exchange apparatus - Google Patents

Abstract

The invention relates to an apparatus for the purification of liquids by ion exchange and reduces the specific consumption of ion exchange resin. A hydraulic elevator 16 is attached to the lower part of the conical chamber 2, located under the chamber for ionizing ion exchanger 1, the ionite outlet pipe 12 is provided with an ion exchanger pulp concentration chamber, the lower part of chamber 2 and 7 are equipped with reflectors 6 and 8 for discharge of the ion exchanger. fluid to the nozzle 19, the ion exchanger is supplied from the chamber 14 and a dense layer of ion exchange resin is formed under the mesh 4, in which the first stage of liquid purification takes place. The second purification stage is carried out in chamber 1, where the ion exchanger layer is liquefied by an upward flow of fluid passing through the grid 4 and the grid 3. Purified water is removed through pipe 11 through trap 10 and partially through pipe 14. Fresh ion exchanger is fed into camera 1 through pipe 9, an excess amount of the ion exchanger is discharged through the nozzle 12 into the chamber 13. The spent ionite is taken out for regeneration through the pipe 7. 1 Cp. f-ly. 1 il.

Description

31502

The invention is applied to water purifiers by ion exchange and can be used in the pulp and paper, chemical, heat and energy and other industries that use ion exchange processes.

The aim of the invention is to reduce the specific consumption of the resin.

The drawing shows an ion exchange apparatus, a longitudinal section.

The ion-exchange apparatus contains a chamber 1 for liquefying the ion-exchange resin and a conical chamber 2 placed under it. The chambers 1 and 2 are separated by a water distribution device in the form of a lattice 3 and a grid 4 between which there is a layer of polyethylene balls 5. At the bottom of the conical chamber 2, a reflector 6 is located. The conical chamber 2 is provided with an additional pipe 7 for discharging spent ionite equipped with a reflector 8. In the upper part of chamber I are located a branch pipe 9 for supplying ion exchangers, a log dryer 10 and a branch pipe 11 for discharging scha.emoy and purified water.

Chamber 1 is provided with a nozzle 12 for conveying resin, which is connected to chamber 13 for thickening the ion-exchange resin pulp. In the upper part of the chamber, a mesh 14 and a nozzle 15 are placed to remove excess liquid.

The device is equipped with a hydraulic elevator 16, the suction inlet 17 of which is connected to the chamber 13 for thickening the pulp, the diffuser 18 to the lower part of the conical chamber 2, and the nozzle 19 serves as a nozzle for supplying the liquid to be cleaned.

Ion-exchange apparatus operates as follows.

The cleaning fluid is fed through nozzle 19 of hydraulic elevator 16 into conical Chamber 2, and then through mesh 4, a layer of polyethylene balls 5 and a water distribution grid 3 enters chamber 1, where fluidization of the resin layer occurs under the action of an upward flow of the fluid being cleaned. An ion exchange resin is continuously dosed to chamber 1 through pipe 9. In the liquefaction chamber 1, the ion exchanger is fluidized to a predetermined height, pressurized to 75–80% and the nci nozzle 12 enters to discharge the resin into the pulp thickening chamber 13.

ionite, from which excess fluid is removed through pipe 15, which leads to condensation of the ionite pulp up to 50%. By means of a hydraulic elevator 16, under the action of a jet coming out of the liquid nozzle 19, the resin is sucked through the suction port 17 connected to the thickening chamber 13. Through the hydraulic elevator diffuser 18 connected to the lower part of the conical chamber 2, the resin, together with the flow of the liquid being cleaned through the reflector 6, enters the conical chamber 2 and is evenly distributed in its upper part. Under the mesh 4, a dense layer of ion exchange resin is formed, held by mesh 4. The mesh 4 and the layer of plastic balls 5 prevent the ion exchanger from being transferred to chamber 1. In the dense layer of ion exchange resin formed in the conical chamber 2, the first step of water purification is performed. A fully enriched ion-exchange resin through pipe 7 with a reflector 8 is removed from the conical chamber for regeneration. In the liquefaction chamber 1, the second stage of fluid purification in a fluidized bed of an ion exchange resin is performed. The purified water is drained through the trap 10, the nozzle 11 and partly from the ionite thickening chamber 13, passes through the grid 14 and the nozzle 15. The presence of the thickening chamber 13 reduces the degree of dilution of the liquid supplied to the cleaning.

The proposed ion-exchange apparatus reduces the specific consumption of an ion exchanger by 1.3 times as compared with the prototype due to an increase in the degree of saturation of the ion exchanger, since when the liquid is filtered in the first stage through a dense layer of a partially saturated ion exchanger, the ion exchange rate is determined by external diffusion when cleaning in the second stage in the fluidized bed - mixed diffusion.

Claims (2)

Invention Formula 1 Ion-exchange apparatus containing a chamber for liquefying an ion-exchange resin with nozzles for introducing and withdrawing resin pulp and draining the liquid to be cleaned, a conical chamber placed underneath it, and a water distribution device located between Came 51502079 It is equipped with a chamber for the worked resin, installed in the ion-exchange resin pulp, of the traditional chamber, in which the cuttings are directed to the thickening chamber, and additionally, in order to reduce the stretching extension of the steam pipeline. installed on the outlet pipe for 2. Apparatus pop.1, about the difference here resin, gdroelevator, diffusor and with the fact that additional which is attached to the lower part of the pipeline and the lower part of the conical conical chamber, and the suction cartridge equipped with reflectors.