JPH03161003A - Liquid purifying apparatus equipped with centrifugal type self-purifying filter - Google Patents

Abstract

PURPOSE:To correspond also to the mixed foreign matters having different particle sizes in a fluid to be filtered by providing a three or more filter material layers of multiple cylindrical surfaces and selecting the mesh sizes of the respective filter material layers before use. CONSTITUTION:In a centrifugal type self-purifying filter 1, inside and outside communication ports 14A-16A are provided to the peripheries of respective multiple cylindrical walls 14-16 becoming the centrifugal force generating surfaces of a hollow cylindrical body 11 having three or more multiple cylindrical walls 14-16 arranged in coaxial relationship and the outer peripheries of the multiple cylindrical walls are covered with cloth or filter material layers 14B-16B having fine meshes and an emitting port 7 is provided to the lower rotary shaft part 12 of the hollow cylindrical body 11. The filter 1 is mounted in an airtight filter tank 4 and supported in a freely rotatable manner. Further, the filter 1 is driven by a motor 1. The liquid to be filtered pressurized from above under gravity or by a pump is introduced into the airtight filter tank 4 from an introducing port 5 and the discharge port 6 of the mixed foreign matters increased in the filter tank 4 by filtering action is further provided. Fine particulate matter is hermetically sealed between the adjacent inner and outer cylindrical walls.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention is used for liquid purification, and is capable of automatically removing foreign substances mixed in a fluid that tends to form a layer of 81 on the surface of a depurator provided at an inlet during purification. The present invention relates to a filtration device with a centrifugal self-cleaning filter that can remove water.

[Prior art] By interposing a filter for removing mixed foreign matter in the flow path of the fluid that is pumped by gravity due to a drop or by using a bomb, the transfer of the fluid and the removal of foreign substances mixed in the fluid are performed at the same time. This is widely practiced across all industrial fields. For example, pre-treatment for water purification equipment, pre-treatment for gray water purification equipment, water intake from polluted water, wastewater treatment equipment, circulation purification equipment for pool water, circulation purification equipment for lubricating oil for work, cutting for machine tools. It is used for filtration in liquid filtration devices, etc.

As this kind of filter (filtering material),
Those equipped with cloth, wire mesh, etc. are used. [Problems to be Solved by the Invention] The conventional filter for removing mixed foreign matter as described above can handle all sizes of mixed foreign matter in the fluid to be removed, if the particle size of the mixed foreign matter varies from large to minute particles. It is difficult to deal with mixed foreign matter, and especially when there is a large amount of foreign matter mixed in, the amount of foreign matter deposited on the surface of the F material increases in a short period of time, and the filter must be cleaned frequently. This was a cause of decreased productivity. The purpose of the present invention is to solve the above-mentioned problems, to be able to deal with a wide variety of mixed foreign substances from large to minute particles in the permeation liquid, and to simultaneously deposit on the surface of the permeate layer while the permeation work is in progress. Equipped with V & ellipse to remove foreign matter of liquid φ that passes through a certain wave from the surface of the resin material.
Furthermore, in response to changes in the various mixed foreign substances in the P filtrate,
The object of the present invention is to provide a filtration device with a centrifugal self-cleaning filter that allows easy replacement of the wicker material. [Means for Solving the Problems] In order to solve the above-mentioned problems, the liquid purification device with a centrifugal self-cleaning filter of the present invention uses a centrifugal force generating surface of a hollow rotating body having three or more cylindrical walls coaxially arranged. The multiple circles fi
Each wall is provided with an internal and external communication port, and the outer periphery of the multi-layered cylindrical wall is covered with a fine-mesh layer 11 or a resin layer,
A centrifugal self-cleaning filter having a discharge port provided in the downward rotating shaft of the hollow rotary body, an airtight filter tank that houses the centrifugal self-cleaning filter and rotatably supports the centrifugal self-cleaning filter, and drives the centrifugal self-cleaning filter. an inlet for introducing the filtration liquid pressurized by gravity or a bomb from above into the airtight filtration tank, and an outlet for the mixed foreign matter that increases in the airtight filtration tank due to -7P overaction. In the centrifugal self-cleaning filter 1-inch liquid purification device, the centrifugal self-cleaning filter has an upper end closed, and the inner and outer ports are provided around the cylindrical hole,
Centered around a rotating cylindrical body with the discharge port provided at the lower end,
An upper flange plate and a lower flange plate that are externally fitted to the upper and lower ends of the rotating cylindrical body are fixed by screwing, and the multi-layered cylindrical wall is
Each separate and independent cylindrical wall is fixed between the upper flange plate and the lower flange plate via a sealing material, and each cylindrical wall can be removed by removing the upper flange plate, and is connected to the predetermined adjacent external cylindrical wall and inner side. The inner and outer communication ports are covered by fixing a material layer or a cloth with a fine mesh around the cylindrical wall, which is formed by wrapping a string or band made of fine fibers connected and reinforced with a hard resin. , an illumination structure capable of sealing particulate matter between the outer cylindrical wall and the inner cylindrical wall, and a material such as activated carbon, diatomaceous earth, white clay, or particulate porous ceramic between the adjacent outer cylindrical wall and the inner cylindrical wall. The technical means is that the airtight filter tank is filled with particulate matter such as filter material or ion exchange resin, and furthermore, the airtight filter tank has a cylindrical shape with a coaxial center with a centrifugal self-cleaning filter and whose upper and lower ends are closed, It has a structure in which liquid flow guides in the shape of screw vanes are arranged diagonally downward at equal intervals, and a downward liquid flow is generated by the rotating liquid flow induced by the rotation of the centrifugal self-cleaning filter. The technical means is that a discharge port for mixed foreign matter is provided at the lower end of the filter tank, and a discharge path is connected to the discharge port provided at the lower rotating shaft of the centrifugal self-cleaning filter. , an on-off valve is installed in the discharge passage, and between the outlet and the on-off valve,
The technical means is that a pressurized air introduction path for feeding pressurized air by a pump is connected via an on-off valve.

[Action and Effect of the Invention Is it pressurized from above by gravity or by a pump? }l: Introduce the F filtrate into an airtight filtration tank. First, the rotation device of the centrifugal self-cleaning filter is activated. Next, start the bomb and start the pressurizing device. Due to gravity or the pressurization of the pump, a large pressure difference is created between the inside and outside of the centrifugal self-cleaning filter with the R material layer as a boundary, and the fluid to be squeezed passes through the gap between the struts and closes the centrifugal self-cleaning filter. The foreign substance is inhaled into the body, causing a p-overeffect. In addition, since centrifugal force acts on the outer circumferential surface of the centrifugal self-cleaning filter, foreign substances in the fluid that tend to settle on the outer circumferential surface are
Deposition on the R material surface is prevented by centrifugal force. At this time, the force that tends to cause the mixed foreign matter in the fluid to settle on the outer circumferential surface is related to the pressure difference between the inside and outside of the resin layer due to gravity or the pressurization of the pump, and the amount of mixed foreign matter, and the force that prevents the deposition is: Regarding the centrifugal force, that is, the rotational speed of the centrifugal self-cleaning filter1
Therefore, measure the amount of fluid discharged from the discharge port of the centrifugal self-cleaning filter, and if the discharge amount decreases, increase the rotation speed of the centrifugal self-cleaning filter, and if the discharge amount increases, increase the rotation speed of the centrifugal self-cleaning filter. By reducing the amount of water, over-injection work will continue.

Therefore, with the above configuration, the liquid purification device with a centrifugal self-cleaning filter of the present invention has the following features: (a) Due to the mounting structure of the multiple cylindrical walls, (effect) the multiple cylindrical walls can be easily removed.

(Exposure) Due to the structure that can seal particulate matter between the adjacent outer and inner cylindrical walls of the multiple cylindrical walls, (effect) a large amount of particulate filtering material or ion exchange resin. etc., can be stored compactly, and can be easily replaced because it can handle a wide variety of mixed foreign objects. (Effects) Not only can it deal with a large number of mixed foreign substances in the P liquid, it is also convenient for conducting research and experiments on various types of common materials or ion exchange resin materials.

(c) Since it is equipped with multiple cylindrical filter media layers consisting of three or more layers as a filter for removing foreign substances mixed in the permeating liquid, (Effects) The size of the mesh of each mesh layer can be selected and used. As a result, it is possible to deal with mixed foreign substances of different sizes in the fluid to be subjected to F-filtration, and the area of the rod layer is extremely large compared to the external dimensions of the centrifugal self-cleaning filter, resulting in extremely excellent permeability.

(2) By providing the material layer on the centrifugal force generation surface, (effect) there is a strong force to prevent foreign matter mixed in the fluid from being deposited on the P″iA material.

(e) By increasing or decreasing the rotational speed of the centrifugal self-cleaning filter in response to the increase or decrease in the discharge volume, (effect) it can continue to respond to changes in the amount of foreign matter mixed in the overflowing fluid and changes in foreign matter mixed in as needed. It is possible to perform overwater injection work.

Regarding claim 2, mixed foreign matter removed from the surface of the resin material and floating around the p-material layer is removed by a centrifugal self-cleaning filter, in which screw blade-like liquid flow guides are arranged diagonally downward at equal intervals. The rotating liquid flow induced by the rotation of the liquid generates a downward liquid flow, so that the liquid is pushed into the lower part of the airtight tank.

(f) The airtight filter tank has a cylindrical shape coaxial with the centrifugal self-cleaning filter, with the top and bottom ends closed, and screw blade-shaped liquid flow guides are installed around the circumference diagonally downward at equal intervals.
It is a horizontal type that generates a downward liquid flow by the rotating liquid flow induced by the rotation of the centrifugal self-cleaning filter, and has a configuration in which a discharge port for mixed foreign matter is provided at the lower end of the airtight hinoki cypress. Due to the centrifugal force of the centrifugal self-cleaning filter, foreign matter that is removed from the surface of the resin material and floating around the resin layer is pushed into the lower part of the airtight filter tank by the downward rotating liquid flow. (Effect) It is quickly discharged from the discharge port.

Regarding claim 3 (g) A discharge passage is connected to the discharge outlet provided in the downward rotating shaft of the centrifugal self-cleaning filter, and an on-off valve is attached to the outlet 1u passage, and an on-off valve is installed between the outlet and the on-off valve. , the pressurized air inlet passage through which pressurized air is fed by a pump is connected via an on-off valve, and the self-cleaning ability of the centrifugal self-cleaning filter is exceeded and foreign matter accumulates on the outer surface, causing overwork in the furnace. If it becomes impossible to continue, the pressurized air moving backwards is guided into the centrifugal self-cleaning filter and the centrifugal self-cleaning filter is blown away from the inside. If the sedimentation of foreign matter cannot be prevented, in addition to the centrifugal force of the centrifugal self-cleaning filter, the centrifugal self-cleaning filter is blown away with pressurized air (effect) to forcibly remove the sediment. Can be removed.

As described above, according to the present invention, the filter has a self-cleaning function, has the function of quickly discharging the mixed foreign matter that is removed from the surface of the filter furnace material, and also has the function of quickly discharging the mixed foreign matter that is removed from the surface of the filter furnace material. It is possible to provide a liquid purification device with a centrifugal self-cleaning filter in which the particulate filter material layer can be easily replaced in response to changes in the quality of foreign substances.

[Example] Next, the present invention will be explained based on a first example shown in FIGS. 1 to 5.

The centrifugal self-cleaning filter A includes a centrifugal self-cleaning filter 1 which is a hollow rotating body having a multi-layered cylindrical wall, a rotating device 3 for the centrifugal self-cleaning filter 1, and an airtight filtration tank 4 that covers the centrifugal self-cleaning filter 1. , an inlet 5 of the airtight filter tank 4, an outlet 6 for discharging mixed foreign matter, a discharge port 7 for F-filtered liquid, and the discharge port 7.
From the cylindrical discharge pipe 71 connected to the discharge pipe 71, the discharge passage 72 connected to the discharge pipe 71, the opening/closing valve 73 of the discharge passage 72, the compressed air introduction passage 74 connected to the discharge passage 72, the opening/closing valve 75 thereof, etc. It is composed. The airtight filtration tank 4 is coaxial with the centrifugal self-cleaning filter 1 and has a cylindrical shape with its upper and lower ends closed. Further, the upper chamber 41 and the lower chamber 42 are formed separately and connected, and are connected by bolting flange portions provided at respective ends.

The centrifugal self-cleaning filter 1 is rotatably installed in the upper chamber 41, and the cylindrical discharge pipe 71 is installed in the lower chamber 42 passing through the center. The self-cleaning filter 1 is connected to rotate integrally with a rotary tube 2 that is rotatably fitted onto the discharge pipe 71. and a rotating device 3 consisting of a motor 33. Further, a discharge passage 72 is connected to the lower end of the discharge pipe 71, an on-off valve 73 is attached to the discharge passage 72, a compressed air introduction passage 74 is connected, and an on-off valve 75 is also connected to the compressed air introduction passage 74. It is equipped with S. The compressed air introduction path 74 is used to blow away the centrifugal self-cleaning filter 1 from inside. In the upper chamber 41 of the airtight filter tank 4, the centrifugal self-cleaning filter 1 is installed in the center, and screw blade-shaped liquid flow guides 43 are arranged around the outside of the upper chamber 41 in a diagonally downward direction at equal intervals. It is set up. The liquid flow guide 43 is designed to generate a downward liquid flow by the rotating liquid flow induced by the rotation of the centrifugal self-cleaning filter 1, and serves to push mixed foreign matter down into the lower chamber 42. Further, an introduction port 5 is provided at the upper end.

The lower chamber 42 of the airtight tank 4 is provided with a discharge port 6 for discharging mixed foreign matter on the lower end side wall, and an airtight cover 49 for sealing the rotary cylinder 2 is fitted to the lower end thereof. It has been done. The introduction port 5 introduces the liquid to be subjected to permeation pressurized by gravity or a pump from above into the airtight permeation tank 4 . An on-off valve 52 is attached to the introduction path 51 connected to the introduction port 5. Further, the discharge passage 61 connected to the discharge port 6 is also equipped with on-off valves 62 and 63. Open/close valve 62
is used to discharge the concentrated mixed foreign matter accumulated in the lower chamber 42 along with the liquid, and the on-off valve 63 is used to discharge the foreign matter accumulated on the surface of the filter 1 with compressed air. : Used to discharge together with compressed air.

The centrifugal self-cleaning filter 1 is made of metal or hard composite or resin, and in this embodiment is a hollow rotating body having a cylindrical wall of a 4G structure arranged coaxially. Moreover, the rotating solid cylinder 11 is rotatably supported at the upper and lower ends. The rotating cylinder 11 has a closed upper end and a solid rotating shaft 12, and a lower end has a hollow rotating shaft 13 with a discharge port 7 provided therein. The side wall of the rotating cylindrical body l1 is the innermost first circular wall, and hollow holes 11A are provided at constant intervals on the peripheral wall surface.

a second cylindrical wall 14 located outside the rotating cylindrical body 11;
A third cylindrical wall l5 located on the outside and a fourth cylindrical wall 16 located further outside are formed by a stepped flange plate 1 which is externally fitted and screwed onto the four outer surfaces of the solid rotating shaft l2 and the hollow rotating shaft 13.
7 and 18 are sandwiched from above and below via ○ rings and fixed at a constant interval. The stepped flange plate 17 is
A presser plate 17A screwed onto the outer surface of the solid rotating shaft 12
In addition, the stepped flange plate 18 is connected to the hollow rotating shaft 1.
It is fixed by a connecting metal fitting l9 that is screwed onto the outer surface of 3. Hollow holes 1 are formed in the second cylindrical wall 14, the third cylindrical wall 15, and the fourth cylindrical wall 16 at regular intervals, respectively.
4A, 15A, and 16A are provided, and filter media layers 14B, 15B, and 16B made of a predetermined material and having meshes gradually becoming finer from the outer ring are fitted onto the outer surfaces thereof.

In this embodiment, between the second cylindrical wall 14 and the third cylindrical wall 15, particulate resin such as activated carbon, diatomaceous earth, white clay, granular porous ceramic, or ion exchange resin is inserted between the second cylindrical wall 14 and the third cylindrical wall 15. The overfill material 8 is densely packed. In addition, the filled P overfill material 8 has seal rings 18A fitted into the upper and lower ends.
and are sealed by the resin layers 14B and 15B.

On the other hand, the upper end of the airtight tank 4 is closed by a bolted flange plate 45. At the center thereof, an attachment/detachment port 45A is provided for attaching and detaching the centrifugal self-cleaning filter l or each of the cylinders g14, 15, and 16. In addition, the attachment/detachment port 45A is connected to an attachment/detachment flange plate 46 tightened with bolts.
is blocked by. A support shaft 47 is fitted into the center of the attachment/detachment flange plate 46. The support shaft 47 is fitted onto the solid rotation shaft 12 and rotatably supports the solid rotation shaft 12 via a bearing 47A. 47B is a bolt that adjusts the radial support position of the bearing 47A, and 47C is a sealing material. Due to the assembly structure of the upper structure of the airtight tank 4 and the centrifugal self-cleaning filter 1, when the attachment/detachment flange plate 46 is first removed, the centrifugal self-cleaning filter 1 integrated with the connecting fitting 19 can be pulled upward and removed. is completed, and then press plate 17
By attaching and detaching A and the stepped flange plate 17, each cylindrical wall 14,
15, 16 and the cylindrical walls 14, 15 (which is the gist of the present invention) can be easily replaced.

Next, the connection structure of the rotating part, the support structure, the rotating device, etc. will be explained.

The rotating cylinder 2 is formed by connecting a first rotating cylinder 21 and a second rotating cylinder 22. The centrifugal self-cleaning filter l and the first rotating cylinder 21 are connected by a connecting cylinder 44. The connection structure is such that a connection fitting 19 that is screwed onto the lower end of the hollow rotating shaft 13 of the centrifugal self-cleaning filter 1 and a connection tube 44 are attached to each hole 1 of the centrifugal self-cleaning filter 1.
9A and the protrusion 44A fit together. Further, the connecting cylinder 44 is rotatably supported by a support plate 48 with a through hole fitted between the upper and lower chambers 41 and 42. A second rotating cylinder 22 is connected to the lower side of the first rotating cylinder 21 by a screw connection. At its lower end, a pulley 31 of the rotating device 3, which is connected from a brace-shaped pulley plate 31A and a boss portion 31B, is connected by a screw connection.

The first rotating cylinder 21, the second rotating cylinder 22, and the pulley 31, which rotate together, are made of a first square graphite packing (a string-shaped piece coated with molybdenum disulfide having a rectangular cross section) fitted into the inner opening of the second rotating cylinder 22. It is rotatably fitted onto the elongated discharge pipe 71 via a packing (with excellent airtightness) 34. Further, the second rotating cylinder 22 is rotatably fitted into the support cylinder 36 via a second square grahite packing 35 .

The support cylinder 36 is horizontally composed of a first cylinder 36A connected to the lower end of the airtight overtank 4 by a screw connection, and a second cylinder 36B that is internally screwed into the first cylinder 36A, and has a radial adjustment function. The pulley 3l is in pressure contact with the pulley 3l via a ball bearing 37, and the pulley 3l is supported in the radial direction from above.

Further, a presser tube 38 is screwed to the lower end of the second rotating cylinder 22, and the presser tube 38 is rotatably joined to a lower support tube 39. The lower support cylinder 39 screwed to the protruding pipe 71 on the cylinder supports the pulley 31 and the second rotating cylinder 22 from below in the radial direction. A rotating part interlocked with the pulley 31 is rotatably supported by a support shaft 47, a support plate 48 with a through hole, a support cylinder 36, and a support cylinder 39.

The rotating part moves as follows. The pulley 31 is rotated via the V-belt 32 by the drive of the motor 33. The rotation of the bobbin 31 causes the rotary cylinder 2 to move in conjunction with the rotation, and further rotates the centrifugal self-cleaning filter 1 via the connecting cylinder 44.

Next, the operation of the above embodiment will be explained.

The on-off valve 52 is opened and the airtight tank 4 is pressurized to about 2 atmospheres. Introduce F""JP3 liquid (thick solid arrow). Under this condition, the centrifugal self-cleaning filter 1 is attached to the pulley 31.
The motor 33 driven by the motor 33 is started at a low speed. Next, the discharge path 72 and the opening/closing valve 73 of the discharge i ¥861
, 62. Observe the amount of discharged liquid passing through the discharge pipe 7l and exiting from the opening/closing valve 73, and find that the mixed tFn substances in the fluid are mixed in the p village layer 14B due to changes in the amount of foreign matter mixed in the @p superfluid and changes in the mixed foreign matter. , 15B, 16B, the rotational speed of the motor 33 is increased or decreased in response to the increase or decrease in the force that tends to deposit on the outer peripheral surfaces of the motors 15B, 16B. A permeating liquid (thin solid arrow) is continuously discharged from the discharge passage 72. Also, due to the rotating liquid flow induced by the rotation of the centrifugal self-cleaning filter 1, the liquid flow guide 43 directs the downward liquid flow. The centrifugal force of the centrifugal self-cleaning filter 1 causes the resin layers 14B and 15B to
, 16B are pushed down into the lower chamber 42. The mixed foreign matter pushed down into the lower chamber 42 is discharged from the discharge passage 72 by 9 or more pushed out from the discharge port 6, and the mixed foreign matter (thick solid line arrow) is discharged from the discharge passage 6l, and the mixed foreign matter is continuously discharged. Excessive work is carried out.

In addition, due to the temporary and extreme increase in the amount of mixed foreign matter, the force to prevent it from being deposited on the outer circumferential surface due to centrifugal force is overcome by the force that tries to deposit it, and the outer circumferential surface of the resin layers 14B, 15B, and 16B is If mixed foreign matter has accumulated and it becomes impossible to continue the P overflow operation, use the following procedure to clean the centrifugal self-cleaning filter 1.
It can powerfully blow away foreign matter deposited on the inside.

First, while driving the centrifugal self-cleaning filter 1,
1, the on-off valve 62 of the discharge path 61, and the on-off valve 73 of the discharge path 72 are closed. Next, the on-off valve 75 of the pressurized air introduction path 74 and the on-off valve 6 of the discharge path 61
75. By this operation, the resin layer 14B
, 15B, and 16B, in addition to the centrifugal force due to rotation, pressurized air exerts a strong blowing force from the inside of the centrifugal self-cleaning filter 1, so that the accumulated foreign substances are removed. It is peeled off from the external surface and discharged from the on-off valve 63. Since pressurized air can penetrate into very small gaps, it can deal with minute deposits of foreign matter and has a powerful effect in removing deposited foreign matter. Next, regarding the resin layers that are fitted onto the second cylindrical wall 14, the third cylindrical wall l5, and the fourth cylindrical wall 16 of the centrifugal self-cleaning filter 1, in this embodiment, the fourth cylindrical wall 16 is taken as an example, and the second to fourth cylindrical walls 16 are This will be explained based on Figure 4. The fourth cylindrical wall 16 has a cylindrical shape and has hollow holes 16A formed at constant intervals over the entire circumferential wall surface.

The p-material layer 16B that is fitted onto the fourth cylindrical wall 16 is formed by wrapping a yarn-like string 16C made of fine fibers connected with a hard resin (in this embodiment, epoxy resin) into the hollow hole 16A.
It is shaped to completely cover the area. In this embodiment, parallel winding 16
D. It is formed by repeating the twill winding 16E, which has a gentle slope, and the twill winding 16F, which has a steep slope, in two orders, and has excellent overloading ability. In the above embodiment, a twisted wool string 16C made of a group of fine fibers connected with a hard resin (in this embodiment, epoxy resin) is used as the resin layer 16B, but the resin layer is externally fitted onto the cylindrical wall. Therefore, depending on the purpose of the P layer, metal or hard resin may be used as the material for the R material layer, and the material may be in various shapes such as string, band, eleven, net, or cotton. -P''ij1 materials can be selected according to the purpose and replaced easily. Next, the detachable flange plate 46 and stepped flange plate 17 are installed.
The second cylindrical wall 14, the third cylindrical wall 15, and the fourth cylindrical wall 16 are removed depending on the change in the target substance or solute, and the P filled between the cylindrical walls is removed.
Since the filter material or ion exchange resin can be easily replaced, the following effects are achieved. <I> 11, so it is not necessary to mix and form a stiffening, so you can use a high purity. (filtration) For the purpose of P filtration or ion exchange in the liquid, the filter is filled with activated carbon, diatomaceous earth, clay, granular porous ceramic, ion exchange resin, or similar predetermined fine particulate or granular material. It is convenient for conducting various kinds of experiments such as p-filtration, softening of hard water, and treatment of radioactive substances.

(〉Ion exchange resin is filled between the second cylindrical wall 14 and the third cylindrical wall 15, and between the third cylindrical wall 15 and the fourth cylindrical wall 16, active carbon, diatomaceous earth, and white clay are used as filter materials. Alternatively, by filling granular porous ceramic etc. and using a combination of filtering material and ion exchange resin, foreign substances are first filtered out from the filtrate through the outer layer of R material, and then the ion exchanger layer inside. The target liquid can be collected by ion exchange with resin.

(2) By filling a predetermined powder or granular catalyst between the cylindrical walls and using it as a catalyst layer, predetermined mixed foreign substances can be treated by catalytic reaction.

Next, based on FIG. 6, a method of sequentially separating a liquid containing foreign substances with large particle size to a liquid containing foreign substances with small particle size by connecting and using the apparatus of the present invention will be explained. The inlet 5 of a centrifugal self-cleaning filter filtration device B similar to the device A is connected to the discharge passage 72 of the centrifugal filtration device A with a self-cleaning filter.
Further, the inlet 5C of a similar centrifugal self-cleaning filter C is connected to the discharge passage 72B of the filtration device B. The minimum mesh size of the filter media layer of filter devices A, B, and C is respectively set as L2 and L3, and the size of the mesh is Ll.
>L2 >L, . f! Passing device A. Activate B and C. From the collection valves 76, 76B, and 76C attached to the respective discharge passages 72, 72B, and 72C, it is possible to sequentially separate and collect liquids from liquids with large particle sizes of mixed foreign substances to liquids with small particle sizes of mixed foreign substances.

Next, based on FIG. 7, a method of sequentially separating a liquid containing foreign substances with small particle size to a liquid containing foreign substances with large particle size by connecting and using the apparatus of the present invention will be explained. .

The inlet 5 of the centrifugal self-cleaning filter B, which is similar to the device A, is connected to the discharge passage 61 of the centrifugal self-cleaning filter A.
Further, the inlet port 5C of a similar centrifugal self-cleaning filter C is connected to the discharge passage 61B of the filtration device B. The minimum mesh filter media layers of filter devices A, B, and C are R8, R2, and R3, respectively, and the mesh size is R.
r < R 2 < R). Opening/closing valves 73, 73B for respective discharge passages 72, 72B, 72C,
From 73C, it is possible to sequentially separate and collect liquids with small particle sizes of mixed foreign substances to liquids with large particle sizes of mixed foreign substances. In addition, by classifying mixed foreign substances by particle size as described above,
Changes in substances due to differences in particle size can be investigated. Next, Figure 8 shows an example of a jig used to efficiently and quickly fill the fine particle filtering material. The jig 100 includes a leak-proof cap 101 that fits into the rotating cylindrical body 1l and the inner cylindrical wall (third circular wall) 15 and covers the gap between them.
A leakage prevention tube 102 that fits into the outer cylindrical wall (fourth cylindrical wall) 16, a leakage prevention tube 102 that fits into the lower end of the connecting fitting 19, and connects the rotary cylindrical body 11, the inner cylindrical wall 15, the outer cylindrical wall 16, and the leakage prevention tube. Stable stand 103 supporting 102, said stable stand 10
3, a vibration table 104, a holding cylinder 105, etc.

Filling can be easily accomplished by setting the centrifugal self-cleaning filter 1 in the jig 100 and pushing in the filtering material 8 while applying vibration.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a centrifugal self-cleaning filter-equipped filter according to the present invention, FIG. 2 is a vertical cross-sectional view of the centrifugal self-cleaning filter, and FIG. 3 is a plan cross-sectional view of the centrifugal self-cleaning filter. Fourth
The figure is a front view of the cylindrical wall and p-material layer, FIG. 5 is a front view, and FIGS. 6 and 7 are assembly diagrams when multiple centrifugal self-cleaning filters are connected and used. Figure 8 is a cross-sectional view of a jig used for efficiently and quickly filling fine-particle filtering material. In the diagram A...Centrifugal self-cleaning filter with over-split arrangement 1...
・Centrifugal self-cleaning filter 2...Rotating cylinder 3...Rotating device 4...Airtight furnace tank 5...Inlet 6...
Discharge port 7... Discharge port 8... Furnace filtration material 11... Rotating cylindrical body 12... Solid rotating shaft l3... Hollow rotating cylinder 14... Second cylindrical wall 15... No. Sancylindrical Saint 16
...Fourth cylindrical wall 14B, 15B, 16B...Brush material layer 17...Stepped flange plate 17A...Pressure plate
l8...Stepped norange plate 18A...Seal ring 19...Connecting fitting 43...Liquid flow guide 46...
- Attachment/detachment flange plate 71...Discharge pipe 72...Discharge path 74...Pressurized air introduction path Agent Kenji IshiguroFigure 4Figure 2Figure 3Figure 15 14 Figure 5Figure 8

Claims (1)

[Scope of Claims] 1) In a hollow rotary body having three or more multiple cylindrical walls arranged coaxially, each of the multiple cylindrical walls serving as a centrifugal force generating surface is provided with an internal and external communication port, and the multiple cylindrical walls are A centrifugal self-cleaning filter whose outer periphery is covered with a cloth with a fine mesh or a filter medium layer, etc., and a discharge port is provided in the downward rotating shaft of the hollow rotating body; and a centrifugal self-cleaning filter in which the centrifugal self-cleaning filter is built-in and rotatably supported. a motor for driving the centrifugal self-cleaning filter; an inlet for introducing the liquid to be filtered pressurized by gravity or a pump from above into the airtight filtration tank; In a liquid purification device with a centrifugal self-cleaning filter, which is equipped with a centrifugal self-cleaning filter that has an outlet for discharging foreign matter that is increasing in number, the centrifugal self-cleaning filter has its upper end closed, the inner and outer communication ports provided around the cylindrical wall, and the discharge port provided at the lower end. An upper flange plate and a lower flange plate which are externally fitted to the upper and lower ends of the rotating cylindrical body are fixed by screwing around the provided rotating cylindrical body, and the multiple cylindrical wall is
Each separate and independent cylindrical wall is fixed between the upper flange plate and the lower flange plate via a sealing material, and each cylindrical wall can be removed by removing the upper flange plate, and the predetermined adjacent outer cylindrical wall and inner cylinder A filter layer formed by wrapping strings or bands made by connecting and reinforcing groups of fine fibers with hard resin, or cloth with a fine mesh, is fixed to the wall to cover the inner and outer communication ports, and It has a structure that can seal particulate matter between the cylindrical wall and the inner cylindrical wall, and a filter material such as activated carbon, diatomaceous earth, white clay, or granular porous ceramic or ion exchange material is installed between the adjacent outer cylindrical wall and the inner cylindrical wall. A liquid purification device with a centrifugal self-cleaning filter characterized by being filled with particulate matter such as resin. 2) The airtight filtration tank has a cylindrical shape coaxial with the centrifugal self-cleaning filter, with its upper and lower ends closed. A claim characterized in that the structure generates a downward liquid flow by a rotating liquid flow induced by the rotation of a self-cleaning filter, and a discharge port for mixed foreign matter is provided at the lower end of the airtight filtration tank. Item 1. The liquid purification device with a centrifugal self-cleaning filter according to item 1. 3) A discharge path is connected to the discharge port provided on the downward rotating shaft of the centrifugal self-cleaning filter, and an on-off valve is attached to the discharge path, and a pump applies pressure between the discharge port and the on-off valve. 3. The liquid purification device with a centrifugal self-cleaning filter according to claim 1 or 2, wherein the pressurized air introduction path for feeding the air under pressure is connected via an on-off valve.