JPH0444234Y2 - - 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 an ion exchange resin layer.

[Prior Art] Regarding a water filtration device that removes impurities from water through an ion exchange resin layer, for example,
As disclosed in Publication No. 67384,
Water filtration devices have been known which are provided to allow backwashing of the filtration element.

[Problems to be solved by the invention] However, in this known water filtration device, the filtration element is connected to an element receiver fixed to a partition plate so as to communicate the water collection chamber and the treatment chamber, and one end of which is connected to the element receiver. A porous cylindrical body detachably attached to the porous cylindrical body, a blind plate fixed to the lower end of the porous cylindrical body, a material support such as a wire mesh wrapped around the outer periphery of the porous cylindrical body, and a material support such as a wire mesh wrapped around the outer circumference of the porous cylindrical body. It is composed of an intertwined body of fibrous and granular ion exchange resin pre-coated on the outer periphery, so if the performance decreases, the porous cylindrical body can be removed from the element receiver and the entire set replaced with a new one. For this reason, excess elements were consumed and it was uneconomical.

Therefore, instead of such a pre-coated filter element, for example, as disclosed in Japanese Utility Model Application Publication No. 60-74789, an ion exchange resin is used in the gap formed by arranging porous cylinders in a double tube shape. Attempts have been made to install a so-called filling type over-element filled with.

However, if you install a filling type over-element,
Although this method has the economical effect of only having to replace the ion exchange resin with a new one, it is difficult to perform the replacement automatically without human intervention. This problem was particularly noticeable when a large number of overlapping elements were installed.

Note that deterioration of overperformance occurs not only due to contamination of the ion exchange resin itself, but also due to clogging of the porous cylinder, but in this case, it is difficult to eliminate the clogging with the general backwashing method. Yes, this problem also had to be resolved.

Focusing on these issues, and as a result of intensive study from various angles to solve this problem, the present invention was developed by installing a pair of partition plates to divide the interior of the processing tank into three chambers in the vertical direction, and to control the upper material supply. They have found that it is sufficient to form a water collection chamber between the discharge chamber and the lower processing chamber, and to suspend the overflow element so that it can be attached and detached through both partition plates.

[Means for Solving the Problems] That is, the water filtration device according to the present invention includes a pair of partition plates installed above and below to vertically divide the inside of the processing tank having a closed structure, and A material supply/discharge port opened to a material supply/discharge chamber formed on the partition plate, a water supply/discharge port opened to the processing chamber formed below the partition plate, and a material supply/discharge port formed between the two partition plates. and a plurality of over-elements suspended in both the partition plates, the over-elements being inserted into mounting holes penetrated through both the partition plates. a second porous cylinder disposed within the first porous cylinder so as to form a material-filled portion; and a second porous cylinder disposed within the first porous cylinder to form a material-filled portion; a flange fixed to the upper end of the cylindrical body and removably mounted on the upper partition plate;
A stopper is fixed to the lower end of the second porous cylinder so as to close the lower end opening of the porous cylinder and is screwed to the lower end of the first porous cylinder; It is characterized in that it is composed of a fixed blind plate, a bottomed porous retainer inserted into the material filling part, and an ion exchange resin filled in the porous retainer.

[Example] Hereinafter, examples will be described based on the drawings.
In FIG. 1 which is a front view and FIG. 2 which is a Z-Z sectional view of FIG. 1, 1 is a treatment tank, 2 is an upper partition plate, 3 is a lower partition plate, 4 is a processing chamber, and 5 is a water collection room, 6
7 indicates the passing element, 7 indicates the material supply and discharge chamber,
The processing tank 1 is provided in a closed structure.

Specifically, the processing tank 1 is constructed by sandwiching the upper partition plate 2 between the flange 9 of the processing tank main body 8 and the flange 11 of the lid body 10 and fixing them with bolts to form a material supply/discharge chamber above the upper partition plate 2. At the same time, a lower partition plate 3 is attached to form a water collection chamber 5 between both partition plates 2 and 3.
and a processing chamber 4 is formed below the lower partition plate 3. In addition, the processing chamber 4 has a water supply and discharge port 12,
In addition, the water collection chamber 5 has a treated water outlet 13, and further includes:
Material supply and discharge ports 14 are opened in each of the material supply and discharge chambers 7, and the lower partition plate 3 is fixed to a seat 15 fixed to the processing tank main body 8 with a gasket interposed therebetween. 2 and 3 over element 6
is at stake.

FIG. 3 shows an enlarged view of how the over-element 6 is suspended, and the over-element 6 is attached to the first
The porous cylindrical body 16 is welded to the upper end of the first porous cylindrical body 16 so as not to block the upper end opening of the first porous cylindrical body 16, and is fixed by bolts 18 with a packing 17 interposed on the upper surface of the upper partition plate 2. Flange 1
9, a plug body 20 screwed onto the lower end of the first porous cylinder body 16, and a plug body 20 disposed within the first porous cylinder body 16 to form a material filling portion 21, the lower end of which is welded to the plug body 20. a second porous cylinder body 22 and a second porous cylinder body 22
The blind plate 23 welded to the upper end of the material filling part 21
A porous retainer 24 with a bottom is inserted into the retainer 24, and a fibrous ion exchange resin 25 (generally called ion exchange fiber) filled in this retainer 24.
It is made up of.

As shown in FIG. 2, the filter elements 6 are arranged at high density so as to be located on large and small circles concentric with the processing tank body 8, and the porous retainers 24 are arranged in a high density manner as shown in FIG. The porous bottom 26 is inserted with the porous bottom 26 facing downward as shown in FIG. ion exchange resin 25
has a diameter of 5 to 300μ and a length of 0.1 to 1mm,
It is filled at 0.05-0.6g/ ^cm3 .

According to this passing device, the material supply/discharge port 14
When the valve attached to the pipe connected to
In this case, impurities contained in the water to be treated that is supplied from the water supply port 12 into the processing chamber 4 are removed by the fibrous ion exchange resin 25 of the filter element 6. be done.

The water to be treated is supplied to the first tank located in the treatment chamber 4.
After flowing into the material filling part 21 through the holes 27 of the porous cylinder 16 and the holes 28 of the plug body 20, the material flows into the second porous cylinder 22.
The water flows into this cylinder through the hole 29, and then flows into the water collection chamber 5 through the holes 27, 29 at the upper ends of both cylinders 16, 22. In this way, the ion exchange resin 2
5 flows twice across the part filled with water, so it can be passed through the water well.Then, when the overcapacity decreases, the treated water discharge port 1
3 closes the valve attached to the pipeline connected to the material supply/discharge port 14, and opens the valve attached to the pipeline connected to the material supply/discharge port 14 to supply water for material removal from the water supply/discharge port 12 to the processing chamber 4. supply within. Then, the water for extracting the material is supplied to the processing chamber 4 in the same way as the water to be treated is supplied.
The material flows into the material filling section 21 through the holes 27 of the first porous cylinder 16 and the holes 28 of the plug body 20 located inside, and then flows upward through the material filling section 21 and into the material supply/discharge chamber 7. flows. For this reason, the ion exchange resin 25 in the material filling section 21 is transported into the material supply/discharge chamber 7 along with this water, and therefore the material supply/discharge port 1
4 and can be transported outside.

In this way, the ion exchange resin 25 with deteriorated performance can be easily taken out. In this case, it is preferable to diffuse the air from the aeration tube 30, and during aeration, pressurized air is supplied from the tube 31. be done. The aeration pipe 30 is fixed to the processing tank body 8 by suitable means.

It should be noted that the pipes connected to the water supply/discharge port 12 are used to supply water for extracting material from the water supply/discharge port 12, to supply water to be treated, and to discharge water as will be described later. The extraction water supply pipe, the water supply pipe to be treated, and the water discharge pipe branched from the water supply pipe are switched by valve control.

Then, from the material filling part 21, the ion exchange resin 2
5, the water in which recycled ion exchange resin (a fibrous ion exchange resin that has been regenerated and has increased performance) is poured into the material supply and discharge chamber 7 from the material supply and discharge port 14. supply Then, this water flows into the material filling section 21 from the material supply/discharge chamber 7, so that the recycled ion exchange resin can be filled here. Note that this water is transferred to the first porous cylinder 1.
6 through the hole 27 and the hole 28 of the stopper 20 into the processing chamber 4.
and is discharged outside from the water supply/discharge port 12.

As described above, according to the present filtration device, the water collection chamber 5 is formed between the upper material supply/discharge chamber 7 and the lower processing chamber 4, and the structure is such that excess water can be discharged from this chamber 5. Therefore, loading, unloading, and filling can be performed by simple valve control (supply/discharge switching control), and since the upper end of the material filling section 21 is open to the wide material supply/discharge chamber 7, ions can be Filling and removal of the exchange resin can be performed satisfactorily. In particular, it is possible to almost completely prevent any residue from being left upon removal.

In addition, in cases where one or both of the second porous cylinder 16 and the second porous cylinder 22 is significantly clogged and the clogging cannot be sufficiently cleared by backwashing, the lid 10 may be removed. After that, the over-element 6 can be removed from both the partition plates 2 and 3 by removing the bolt 18 and moving the over-element 6 upward, and after cleaning it by an appropriate method, the over-element 6 can be removed from the both partition plates 2 and 3 again. , 3 and can be used. Note that an O-ring 32 (see FIG. 3) attached to the lower partition plate 3 prevents the water to be treated from directly flowing into the water collection chamber 5 from the treatment chamber 4.

An embodiment of the present invention has been described below, 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 used in combination with a fibrous, powdered, or granular resin that does not have an ion exchange group. Further, although it is preferable to provide the hole 28 in the plug body 20, it is not necessary to provide the hole 28. The diffuser pipe 30 may also be provided not only in a linear shape but also in a ring shape. Note that the first and second porous cylinders 16 and 22 can be provided not only in circular shapes but also in other shapes, and correspondingly, the porous retainer 24 can also be provided in various shapes. In Figure 1, 33 is a lug, 34, 35
indicate water impingement devices, respectively.

[Effects of the invention] As described above, according to the present invention, it is possible to carry out loading, unloading and filling of material by simple valve control (supply/discharge switching control), and the loading element can be easily attached and detached. Furthermore, it is possible to mount the filter elements in a high density in the processing chamber, thereby obtaining a water filter device with a large surface area (surface area of the superlayer).

[Brief explanation of the drawing]

Figure 1 is a front view of the water filtration device, Figure 2 is a Z-Z sectional view of Figure 1, Figure 3 is an enlarged view of the suspension part of the filter element, and Figure 4 is a perspective view of the porous retainer. . 1... Processing tank, 2... Upper partition plate, 3... Lower partition plate, 4... Processing chamber, 5... Water collection chamber, 6... Excess element, 7... Material supply/discharge room, 12... Water supply/discharge port, 13... Treated water discharge port, 14... Furnace material supply/discharge port, 16... First porous cylinder, 19... Flange,
20... Plug body, 21... Material filling part, 22... Second porous cylinder, 23... Blind plate, 24... Porous retainer, 25... Ion exchange resin, 26... Porous bottom.

Claims (1)

[Scope of utility model registration request] a pair of partition plates installed above and below to vertically divide the interior of the processing tank having a closed structure; a material supply/discharge port formed on the upper partition plate and opened to a material supply/discharge chamber; A water supply/discharge port opened to a treatment chamber formed below the partition plate at the lower side, a treated water discharge port opened to a water collection chamber formed between both the partition plates, and a water supply/discharge port opened to the water collection chamber formed between the two partition plates, and and a plurality of over-elements installed in the first porous cylindrical body, the first porous cylinder being inserted into the mounting holes penetrated through both the partition plates, and the first through-hole elements forming a material filling part.
a second porous cylinder disposed within the porous cylinder; and a second porous cylinder fixed to the upper end of the first porous cylinder so as not to block the upper end opening of the material filling part, and capable of being attached to and removed from the upper partition plate. a flange attached to the second porous cylinder, and a plug fixed to the lower end of the second porous cylinder so as to close the lower end opening of the second porous cylinder, and screwed to the lower end of the first porous cylinder. , a blind plate fixed to the upper end of the second porous cylindrical body, a bottomed porous retainer inserted into the material filling part, and an ion exchange resin filled in the porous retainer. A water filter device featuring: