SU1554964A1 - Apparatus for scrubbing ion-exchange resin - Google Patents

Abstract

The invention relates to the purification process of ion exchange resin, in particular to the instrumentation of the process of washing the resin from light impurities, and can be used in the chemical, food and other industries. The purpose of the invention is to reduce the loss of the ion exchange resin and increase the washing efficiency by preventing its accumulation on the surface of the liquid. The device for washing ion-exchange resin contains a vertical body with a conical bottom, a loading funnel and a drainage in the upper part. The inlet funnel is provided at the bottom in the lower part with a return funnel mounted coaxially with the gap, and secured in a shell connected to the inlet funnel. A conical distributor is installed below the return funnel, under which there is a channel for the discharge of water. The return funnel and the shell prevent the accumulation of the floating ion exchanger on the surface of the liquid due to the capture of the ion exchanger by the downward flow. 1 hp f-ly, 2 ill.

Description

The invention relates to the purification of ion-exchange resin, in particular to the instrumentation of the process of washing the resin from light impurities, and can be used in the chemical, food and other industries.

The purpose of the invention is to reduce the loss of ion exchange resin and increase the washing efficiency by preventing its accumulation on the surface of the liquid.

Figure 1 shows the proposed device for washing, a longitudinal section; figure 2 - node I in figure 1.

The washing device consists of a cylindrical body 1 with a conical bottom 2. In the upper part of the body, a receiving 3 and a reverse 4 funnels, a shell 5, and a distribution umbrella 6 are installed coaxially with it. A truncated cone 7 and a drainage 8 are attached to the upper edge of the device. In the upper part of the cylindrical body there is an outer annular collector 9 with a branch pipe 10. In the middle part an equalizing grid 11 is installed, and in the lower conical part there is an annular distributor 12 with holes and a central pipe.

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13 for injecting the washing solution into the top. In addition, the device is equipped with an ion exchange resin outlet 14 and nozzles 15 and 16 liters of water supply for washing or regeneration solution 15 and 16. The distribution umbrella 6 and the inlet pipe 13 have an annular channel 17 (figure 2).) 0

The device works as follows.

The mixture of ion exchange resin and water enters the receiving funnel 3, and the ion exchange resin with water passes through the return funnel 4. It reaches the predetermined umbrella 6, where it is evenly distributed around its perimeter. Due to the return funnel 4 due to the ejection effect of the downward float entrains the flow. The water is supplied through the nozzle 16 and the passage through the ring distributor 12 moves with a uniform upflow preventing the capture of the washed light impurities of the ion-exchange resin towards the flow of the ion exchanger through the leveling grid 11 passes through the drainage 8 into the outer annular collector 9 and through the nozzle, Q 10 is taken out of the device.Went through the nozzle 15, the water enters the central pipe 13 and exits through the annular channel 17, washing away the ion trash monolayer

The flow rate of water into the distribution umbrella 6 through the nozzle 15 and into the ring distributor 12 through the nozzle 16 should be less than the speed of the ion exchanger in this solution. A part of the ion exchanger with adsorbed air bubbles pops up and gets inside the shell 5, which prevents the emerging of ion ion

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exchange resin for drainage 8 and plugging holes. As the ion exchanger accumulates in the shell L, it is partially sucked in due to the ejection of the incoming flow into the return funnel 4, where air is separated, and the ion exchanger is used further in the process. Thus, installing the return funnel 4 and the shell 5 prevents the accumulation of a floating ion exchanger on the surface of the liquid and clogging of the drainage 8, which greatly simplifies the maintenance of the device and also increases the degree of washing of the ion exchanger from impurities, and consequently, intensifies the ion exchange process. separate reactor.

Claims (2)

1. A device for washing ion exchange resin containing a vertical cylindrical body with a conical bottom with reagent inlet and outlet nozzles, in the upper part of which there is a feed funnel and upper drainage, and in the middle part - a liquid distributor, characterized in that in order to reduce losses ion exchange resin and increasing the efficiency of its washing by preventing its accumulation on the surface of the liquid, the feed hopper on the outside in the lower part is equipped with a return funnel mounted along the gap with fortified in the shell connected to the feed hopper. 2. A device according to claim 1, characterized in that the return funnel is provided with a conical distribution umbrella installed under it, under which there is an annular channel for the discharge of water. 17 Fig 2 rig.1