JPH059111Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water filtration device that removes impurities from water through a layer filled with ion exchange resin.

[Prior Art] A water filtration device that removes impurities from water through an overlayer filled with ion exchange resin is conventionally known. For example, in Utility Model Application No. 60-74789,
A water filtration device is disclosed that removes impurities from water through a layer filled with fibrous ion exchange resin.

[Problems to be solved by the invention] However, in this known water filtration device, a pair of porous cylinders with different diameters are installed concentrically in a treatment chamber with a double-tube-like sealed structure, and there is a gap between the two cylinders. is filled with fibrous ion exchange resin to form an overlayer, and the water to be treated is supplied from the supply port opened in the side wall of the processing chamber from the large-diameter porous cylinder side to the small-diameter porous cylinder side. The structure is such that the excess water is allowed to flow into a small-diameter porous cylindrical body and drained out of the processing chamber from a discharge port opened in the bottom wall of the processing chamber. Since the process is constructed in such a way that one porous cylindrical overlayer is formed in the process, increasing the overlayer area (the surface area of the overlayer) would also increase the size of the processing chamber, which was economically disadvantageous.

Therefore, by forming multiple superlayers,
Attempts have been made to overcome these drawbacks, but forming multiple overlayers may require filling the ion exchange resin into the overlayer forming section or reducing performance from the overlayer forming section. There was a problem that needed to be solved in that it became difficult to take out the ion exchange resin.

Focusing on these issues, and as a result of intensive studies from various angles to solve this problem, the present invention has been developed by constructing a material supply and discharge chamber on the upper partition wall of the processing chamber, and a water supply chamber under the lower partition wall of the processing chamber. The inventors have discovered that it is sufficient to form a plurality of porous cylindrical overlayers in such a manner that the material supply/discharge chamber and the water supply chamber are communicated between the two partition walls.

[Means for Solving the Problems] In other words, the water filtration device according to the present invention has an upper partition wall fixed to the upper end of the side wall in which the supply port for supplying water to be treated is opened, and a lower partition wall fixed to the lower end thereof. A material supply and discharge chamber having a material supply and discharge port for supplying and discharging water in which ion exchange resin is dispersed is opened in the upper shielding wall fixed to the upper surface side of the upper partition wall, and a material extraction chamber. A water supply chamber has a water supply port opening through a lower shielding wall fixed to the lower surface side of the lower bulkhead, and an upper and lower chamber having a lower end extending through the upper shielding wall and protruding into the material supply/discharge chamber. a drainage pipe arranged in a direction and fixed to the upper shielding wall; and a plurality of overlayers, the upper end of which connects the upper end to the upper shielding wall so that the overlayer communicates the material supply and discharge chamber with the water supply chamber. a porous cylindrical overlayer support outer wall body fixed to the partition wall and having a lower end fixed to the lower partition wall; a flange passing through a water supply hole fixed to one end in the axial direction of the porous cylinder body and the opposite end thereof; and is suspended from the lower end of the drain pipe via the flange so as to connect the water feed hole to the water feed port of the drain pipe, and is disposed within the overlayer supporting outer wall body. The ion exchange resin is filled into the water supply channel formed between the superlayer support inner wall body and the superlayer support outer wall body so that it cannot be transferred into the water supply chamber. It is characterized by being composed of.

[Example] Hereinafter, an example will be described based on the drawings. In FIG. 1 which is a front view and FIG. 2 which is a cross-sectional view of FIG. 1, 1 is a processing chamber, and 2 is a material supply/discharge chamber. , 3 is a water supply chamber, 4 is an overlayer, and 5 is a drain pipe. The material supply/discharge chamber 2 supplies water in which fibrous ion exchange resin (generally called ion exchange fiber) is dispersed. An upper shielding wall 11 having an opening for supplying and discharging materials 10 is fixed to the upper surface side of the upper bulkhead 8 by bolts, and the drain pipe 5 penetrates through the upper shielding wall 11. It is arranged vertically so that its lower end protrudes into the material supply/discharge chamber 2 and is welded to the upper shielding wall 11 .

On the other hand, in the water supply chamber 3, a lower shielding wall 13 in which a supply port 12 for supplying water for extracting material is opened is connected to a lower partition wall 9.
It is fixed by bolts to the lower surface of the
The overlayers 4 are arranged at high density so as to be located above each of the large and small circles concentric with the processing chamber 1.

In addition, as shown in FIG. 3 which is an enlarged view, the overlayer 4 has a fibrous ion exchanger in the water supply channel 16 formed between the overlayer support inner wall 14 and the overlayer support outer wall 15. The overlayer support outer wall body 15 is filled with resin and is composed of a porous cylinder 17, and its upper end is connected to the upper partition wall 8 so as to communicate the material supply and discharge chamber 2 and the water supply chamber 3 The lower end is welded to the lower partition wall 9. In addition, the overlayer support inner wall body 14 has a flange 20 that passes through the water supply hole 19 welded to one end in the axial direction of the porous cylinder body 18, and a blind plate 22 to the opposite end.
1 by welding, and is screwed and suspended on the lower end of the drain pipe 5 via a flange 20 so as to connect the water supply hole 19 to the water supply port of the drain pipe 5. It is arranged within the body 15.

The fibrous ion exchange resin filled in the water supply channel 16 has a diameter of 5 to 300 μm and a length of 0.1 to 300 μm.
1 mm and filled at 0.05 to 0.6 g/cm ³ , and is prevented from being transferred to the water supply chamber 3 etc. by the wire mesh 22 etc. with openings smaller than the diameter of this, that is, the lower A wire mesh 22 screwed and stretched on the lower surface of the partition wall 9 prevents the water from being transferred into the water supply chamber 3, and the porous cylindrical body 1
Wire mesh 2 screwed and stretched on the inner surface of 7
3 prevents it from being transferred into the processing chamber 1,
Further, a wire mesh 24, which is also stretched over the outer surface of the porous cylinder 18, prevents it from being transferred into the porous cylinder 18.

According to this passing device, the material supply/discharge port 10
With the valves attached to the pipes connected to the pipe and the pipe connected to the supply port 12 closed, the water to be treated is supplied from the supply port 6 and the water is discharged from the drain pipe 5. The water can be discharged, but at that time, impurities contained in the water to be treated that is supplied from the supply port 6 into the processing chamber 1 are removed by the ion exchange resin of the overlayer 4.

When the overcapacity decreases, the valves attached to the pipes connected to the supply port 6 and the pipes connected to the drain pipe 5 are closed, and the valves connected to the material supply and discharge port 10 are closed. Open the valves attached to the pipes and the pipes connected to the supply port 12, and supply water for material removal from the supply port 12 to the water supply chamber 3.
Supply inside.

Then, this water flows from inside the water supply chamber 3 to the overlayer 4.
The material flows into the material supply/discharge chamber 2 through the material supply/discharge port 10, and is discharged from the material supply/discharge port 10. For this reason, the ion exchange resin in the superlayer 4 is transported along with the material removal water,
The material is transferred to another location via a conduit connected to the material supply/discharge port 10. At this time, since the hydraulic power of the material removal water acts over the entire lower end of the overlayer 4, the filled ion exchange resin can be completely transferred. Resin can be prevented from remaining.

Then, when all of the ion exchange resin in the overlayer 4 can be taken out to the outside of the material supply and discharge chamber 2, the supply port 6
The valve attached to the pipeline connected to the drain pipe 5 is kept closed, and the valve attached to the pipeline connected to the drain pipe 5 is kept closed. is opened, and the water in which recycled ion exchange resin (fibrous ion exchange resin that has been regenerated and has increased performance) is supplied and discharged through the pipe line connected to the material supply and discharge port 10. Supplied into room 2.

Then, this water flows from the material supply/discharge chamber 2 through the water supply channel 16 to the drain pipe 5, so that the water supply channel 16 is filled with ion exchange resin to form the overlayer 4. In addition, it can be easily filled, removed and filled.

An embodiment of the present invention has been described above, but in the present invention, the ion exchange resin can be in a form other than fibers, such as powder or granules, and these may be individually Alternatively, suitable materials may be mixed and used, and further, they may be mixed with a resin in the form of fibers, powder, or particles that do not have an ion exchange group. Further, the overlayer support outer wall 15 and the overlayer support inner wall 14 may be provided not only in a circular shape but also in other shapes, and holes smaller than the diameter of the ion exchange resin pass through the overlayer support outer wall 15. When the perforated cylinder of the overlayer support inner wall body 14 is constructed of the same porous cylinder, the installation of the wire mesh 23 can be omitted, and when the perforated cylinder of the overlayer support inner wall body 14 is constructed of the same material, the installation of the wire mesh 24 can be omitted. In addition, wire mesh 22
In place of this, other porous materials having holes smaller than the diameter of the ion exchange resin may be used, and regarding the installation of this material, the outer support wall 15 and inner support wall 14 may be It can be attached in various ways, such as by having the lower end protrude into the water supply chamber 3 and attaching to this protrusion. In addition, the wire mesh 22
24 may be replaced with a porous container integrally formed in a similar shape to the water supply channel 16 and may be installed in the water supply channel 16. As for the means for suspending the overlayer support inner wall body 14 on the drain pipe 5, other means than screwing may be used.

[Effects of the invention] As described above, according to the invention, in a water filtration device that removes impurities from water through an overlayer filled with ion exchange resin, filling and taking out the ion exchange resin can be easily and efficiently performed. can be done,
Furthermore, a water filtration device can be obtained in which a superlayer can be formed at high density in the processing chamber and a large overlayer area (surface area of the superlayer) can be obtained.

[Brief explanation of drawings]

FIG. 1 is a front view of the water filtering device, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 3 is an enlarged view of the overlayer section. DESCRIPTION OF SYMBOLS 1... Processing chamber, 2... Material supply/discharge room, 3... Water supply chamber, 4... Overlayer, 5... Drain pipe, 6... Supply port for water to be treated, 7... Side wall, 8... ...Upper bulkhead, 9...
...Lower bulkhead, 10...Material supply/discharge port, 11...Upper shielding wall, 12...Material removal water supply port, 13...
Lower shielding wall, 14... Overlayer support inner wall body, 15...
Overlayer support outer wall body, 16... water supply channel, 17, 18
... Porous cylindrical body, 19 ... Water supply port, 20 ... Flange, 21 ... Blind plate, 22 to 24 ... Wire mesh.

Claims (1)

[Scope of utility model registration request] A treatment chamber with an upper partition fixed to the upper end of the side wall and a lower partition fixed to the lower end of the side wall with a supply port opening for supplying water to be treated, and a material for supplying and discharging water in which ion exchange resin is dispersed. A material supply/discharge chamber having a supply/discharge port opened in an upper shielding wall fixed to the upper surface side of the upper bulkhead, and a lower shielding wall having a supply port for supplying water for taking out materials fixed to the lower surface side of the lower bulkhead. a water supply chamber opened to the upper shielding wall; a drainage pipe fixed to the upper shielding wall and arranged vertically so as to penetrate the upper shielding wall and protrude at its lower end into the material supply/discharge chamber; and a plurality of overlayers. and the superlayer comprises:
a porous cylindrical overlayer supporting outer wall body having an upper end fixed to the upper partition wall and a lower end fixed to the lower partition wall so as to communicate the material supply/discharge chamber and the water supply chamber; and a porous cylindrical body. A flange passing through a water supply hole is fixed to one end in the axial direction of the pipe, and a blind plate is fixed to the opposite end, and the flange is connected to connect the water supply hole to the water supply port of the drain pipe. an overlayer support inner wall body suspended from the lower end of the drain pipe and disposed within the overlayer support outer wall body; and a water supply channel formed between the overlayer support outer wall body and the overlayer support inner wall body. and the ion exchange resin filled in such a manner that it cannot be transferred into the water supply chamber.