JPH09294934A - Ion exchange resin column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the volume of the lower part of a water collecting strainer plate and to save washing water in washing by packing a material which is cured with the passage of time below the water collecting strainer plate and forming the upper surface of the material in a funnel shape. SOLUTION: The main body container of an ion exchange resin column 1 having a water collecting strainer plate 8 is divided by the lower surface of the plate 8, and flanges (a), (b) are formed in the divided parts and linked together. The outlet pipe 13 of the outlet 10 of an lower part container 1 is projected inside and formed in a funnel shape (c) with a material which is cured with the passage of time, for example, a filler 3 such as mortar or a plastic. Chemical resistant coating is applied to the upper and lower surfaces of the plate 8, the inner surfaces of containers 1a, 1b, the surface of the filler 3, and the inner surface of the outlet pipe 10. When the filler 3 is made from a chemical resistant plastic, the coating is not necessary. In this way, water can be collected smoothly. Since the volume is reduced during washing, washing costs can be reduced.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an ion exchange resin tower such as a deionizer.

[0002]

2. Description of the Related Art A first example of the prior art is shown in FIGS.
A water collecting strainer plate 8 having a water collecting strainer 6 is provided in a lower portion of a vertical pressure vessel type ion exchange tower 1 having an outlet 10 at a lower end thereof. The ion exchange resin 5 is arranged on the upper part of the water collecting strainer plate 8.

In the above, the liquid to be treated passes through the ion exchange resin 5, passes through the water collecting strainer 6 and the water collecting zone 9 as a treating liquid, and exits from the outlet 10. After the ion exchange resin 5 reaches the processing capacity limit, it is regenerated with a chemical solution to restore the processing capacity.

In this type, this chemical is collected in the water collecting zone 9
Therefore, a large amount of washing water is required to wash it out.

In the second example shown in FIG. 7, the water collecting strainer plate 8 is curved downward and the volume of the water collecting zone 9 is reduced. However, with this structure, it is technically difficult to lining the inner surface of the water collecting zone 9 with the chemical resistant liquid, and the shape of the water collecting strainer plate 8 is expensive and is not generalized.

In the third example shown in FIGS. 8 and 9, a partition plate 11 is attached to the lower part of the ion exchange resin tower, and a water collecting header pipe 7 having a water collecting strainer 6 attached to the upper part thereof is arranged horizontally. ,
The outlet 10a is provided beside the container. And partition plate 1
The inside of the lower part of 1 is filled with mortar or the like through the outlet hole 10 to prevent the intermediate partition plate 11 from being deformed by the internal pressure of the tower. However, this structure is complicated and expensive because the water collecting header pipe 7 is incorporated.

[0007]

The above-mentioned prior art has the following problems. (A) In the first example, the volume of the water collecting zone below the water collecting strainer plate is large, and a large amount of cleaning water is required. (B) The second example is expensive because the water collecting strainer plate has a special shape. Further, it is difficult to line the lower part with a chemical resistant liquid. (C) The third example has a complicated structure and is expensive.

The technique required for the water collecting zone of the ion exchange resin is to reduce the volume and maintain the uniform flow from the water collecting strainer to the outlet hole of the treated water, which facilitates maintenance of the water collecting strainer. That is.

[0009]

The present invention employs the following means to solve the above-mentioned problems. (1) In a vertical pressure vessel type ion exchange resin tower having a water collecting strainer plate at the lower part and an outlet hole at the lower end filled with an ion exchange resin, a material which hardens with time is filled below the water collecting strainer plate. Then, the upper surface is formed into a funnel shape.

In the above, the liquid that has passed through the water collecting strainer plate flows evenly and smoothly through the funnel-shaped portion and exits from the outlet hole. In addition, the volume of the lower part of the water collecting strainer plate becomes smaller, and less cleaning water is required during cleaning. (2) In the ion exchange resin tower of (1) above, the ion exchange resin tower is separated on the lower surface of the water collecting strainer plate to form a flange connection.

In the above, since the main container of the ion exchange resin tower can be separated, the construction of the lower filling material becomes easy. Also, maintenance of the water collection strainer becomes easier. (3) In the ion exchange resin tower of the above (1), the main container of the ion exchange resin tower is separated by the water collecting strainer plate portion and the edge portion of the water collecting strainer plate is sandwiched to form a flange connection.

In addition to the above (2), since the water collecting strainer plate can be removed, maintenance of the water collecting strainer becomes extremely easy.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

(1) A first embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, the main container of the ion-exchange resin tower 1 having the water collecting strainer plate 8 is divided at the lower surface of the water collecting strainer plate 8 and flanges a and b are provided at the divided portions to connect them. is there.

The outlet pipe 1 of the outlet 10 of the lower container 1
3 is made of a filler 3 such as a mortar or a plastic, which is made to protrude inside and hardens with time, and is formed into a funnel shape c.

Upper and lower surfaces of the water collecting strainer plate 8, the container 1a,
The inner surface of 1b, the surface of the filler 3 and the inner surface of the outlet pipe 10 are coated with a chemical resistant coating. If the filler 3 is a chemical resistant plastic, no coating is required on its surface. As shown in FIGS. 2 and 3, the water collecting strainer 6 is arranged on the water collecting strainer plate 8 and is fixed by the nut 12. As described above, since the containers 1a and 1b are separated and have the nuts, the water collecting strainer can be easily maintained.

Further, since the water collecting zone 9 can be divided into two parts, the maintenance becomes easy. Further, since the time-curable material can be easily applied and the funnel-shaped material is formed, water can be collected smoothly. (2) A second embodiment of the present invention will be described with reference to FIG.

As in the above (1), the ion exchange resin tower 1 is divided into two parts, and the divided parts are provided with flanges a and b. Then, the peripheral portion of the water collecting strainer plate 8 is sandwiched and attached between them. The lower container 1b is the same as the above (1).

Since the water collecting strainer plate 8 can be removed, its maintenance becomes easy. In addition, the water collection strainer 6 can be installed and maintained outside the tower. The water collecting strainer plate 8 can be treated separately from the chemical resistant lining on the inner surface of the container, and a rust-free steel plate can be used, thus eliminating the need for lining.

As described above, the water collecting zone 9 can be optimized in shape and can be manufactured and maintained easily, so that the cost can be reduced.

[0021]

As described above, the present invention has the following effects. (1) Since the lower part of the water collecting strainer plate of the ion exchange resin tower is formed in a funnel shape, water can be smoothly collected. In addition, since the volume is reduced during cleaning, the cleaning cost is reduced. (2) Maintenance can be facilitated because the ion exchange resin tower can be divided. Especially, maintenance of the water collection strainer becomes easy. (3) The time-curable material can be easily applied, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a first embodiment of the present invention.

FIG. 2 is an AA view of FIG. 1 of the same embodiment.

FIG. 3 is a sectional view of a water collecting strainer portion of the same form.

FIG. 4 is a sectional view of a second embodiment of the present invention.

FIG. 5 is a sectional view of a first example of the prior art.

FIG. 6 is a BB view of FIG. 5 of the first example.

FIG. 7 is a sectional view of the second example.

FIG. 8 is a sectional view of the third example.

FIG. 9 is a CC view of FIG. 8 of the third example.

[Explanation of symbols]

 1 Ion Exchange Resin Tower 3 Filler 5 Ion Exchange Resin 6 Water Collection Strainer 7 Water Collection Header Pipe 8 Water Collection Strainer Plate 9 Water Collection Zone 10 Exit Hole 11 Partition Plate 12 Water Collection Strainer Fixing Nut 13 Outlet Tube

Claims (3)

[Claims] 1. A vertical pressure vessel type ion exchange resin tower having a water collecting strainer plate at the bottom and an outlet hole at the lower end filled with an ion exchange resin, and a material which is cured with time below the water collecting strainer plate. And an upper surface of which is formed into a funnel shape, which is an ion exchange resin tower. 2. The ion exchange resin tower according to claim 1, wherein the ion exchange resin tower is separated on the lower surface of the water collecting strainer plate and is flange-bonded. 3. The ion exchange resin tower according to claim 1, wherein the ion exchange resin tower is separated by a water collecting strainer plate portion, and flange connection is performed with the edge portion of the water collecting strainer plate sandwiched therebetween. Ion exchange resin tower.