JP2016064350A - Housing for filtering device, and filtering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing for a filtering device easy to exchange a filter medium, and the filtering device using the housing.SOLUTION: A housing for a filtering device in this invention has a storage container having an open end, and a lid capable of substantially changing the storage container to a sealed space by sealing the open end. The storage container equips a support shaft having a branched cross-sectional shape extending radially from a central part. The support shaft is preferably on a trestle surface capable of forming a space between the trestle and an inner wall face. In the filtering device, the hollow part of a filter medium is stored in the housing for the filtering device in such a state as inserted in the support shaft.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a housing for a filtration device and a filtration device. In particular, the present invention relates to a filtration device that can clean contaminated water and a housing thereof.

  2. Description of the Related Art Conventionally, as a method for purifying contaminated water, a method using a filtration device containing a filter is known. For example, Japanese Patent Application Laid-Open No. 2010-221206 (Patent Document 1) includes a cylindrical container body with the other end opened, a paper filter cartridge housed in the container body, and a lid that covers the opening of the container body. A filtration device is described in which the lid is connected to the container body by screwing. The paper filter cartridge has a structure in which a laminated body of bag-shaped filter paper and a nonwoven fabric is wound around a connecting pipe, and is configured to be connected to the introducing pipe by screwing one end of the connecting pipe. Yes.

  Such a filtration device was able to clean contaminated water, but in order to install a paper filter cartridge, after connecting a laminated body of bag-shaped filter paper and nonwoven fabric around the connection tube, it was connected It was necessary to connect the pipe by screwing. Therefore, when the paper filter cartridge is frequently replaced, it is a very time-consuming filtration device. For example, when cleaning contaminated water contaminated with radioactive materials generated from the Fukushima Daiichi nuclear power plant due to the Great East Japan Earthquake, it is necessary to clean a large amount of contaminated water. The frequency of cartridge replacement was high and very inconvenient.

JP 2010-221206 A

  The present invention has been made under such circumstances, and an object of the present invention is to provide a housing for a filter device in which a filter medium can be easily replaced, and a filter device using the same.

  The invention according to claim 1 of the present invention is a housing for a filtration device having a storage container having an open end and a lid that can be made a substantially sealed space by sealing the open end, The said storage container is provided with the support shaft which has the branched cross-sectional shape radially extended from the center part, The housing for filtration apparatuses characterized by the above-mentioned.

  The invention according to claim 2 of the present invention is characterized in that "the storage container has a gantry capable of forming a space with an inner wall surface, and a support shaft is provided on the surface of the gantry. The filtration device housing. "

  The invention according to claim 3 of the present invention is as follows: “The storage container has a supply port facing the back surface of the gantry and capable of supplying a fluid to be processed, according to claim 1 or 2. For housing. "

  The invention according to claim 4 of the present invention is as follows: "The lid has a discharge port capable of discharging a processing fluid and has a gel elastic body surrounding the discharge port. The housing for a filtration device according to one item. "

  The invention according to claim 5 of the present invention is as follows. "The housing for a filtration device according to any one of claims 1 to 4, wherein the lid and the storage container are connected by a ferrule clamp. Is.

  The invention according to claim 6 of the present invention is as follows. “In the filtration device housing according to any one of claims 1 to 5, a hollow portion of a filter medium having a hollow portion is inserted into a support shaft. A filtration device characterized by being housed. "

  The invention according to claim 7 of the present invention is “the filtration device according to claim 6, wherein the filter medium is a hollow cylindrical body around which a fiber sheet is wound”.

  According to a first aspect of the present invention, there is provided a housing for a filtration device, wherein the storage container includes a support shaft having a branched cross-sectional shape extending radially from a central portion, and the hollow portion of the filtering material having a hollow portion is provided as the hollow portion. Since the filter medium can be reliably installed at a specific position only by being inserted into the support shaft, the filter medium can be easily replaced. In addition, since the support shaft has a branched cross-sectional shape and is excellent in pressure resistance, the shape of the filter medium can be improved by the support shaft even when processing a high flow rate fluid. Can also be achieved, and there is an effect that the filtration performance is excellent. Furthermore, since the support shaft has a branched cross-sectional shape and a flow path for the processing fluid can be secured, there is an effect that the processing fluid can be easily discharged.

  According to a second aspect of the present invention, there is provided a housing for a filtration device, wherein the storage container has a gantry capable of forming a space with the inner wall surface, and a support shaft is provided on the surface of the gantry. Can be supplied and diffused, so that the entire filter medium can be used efficiently.

  In the housing for a filtration device according to claim 3 of the present invention, since the storage container has a supply port that can supply a fluid to be processed, facing the back surface of the frame, the fluid to be processed supplied from the supply port is Since it collides with the back surface and diffuses, the entire filter medium can be used efficiently.

  The housing for a filtration device according to claim 4 of the present invention is such that the lid has a discharge port through which the processing fluid can be discharged, and has a gel elastic body surrounding the discharge port, and the gel elastic body has an end portion of the filter medium. Since it can adhere | attach, it can discharge | emit, without contaminating a process fluid with a to-be-processed fluid.

  In the filter device housing according to the fifth aspect of the present invention, since the lid and the storage container are connected by the ferrule clamp, the lid can be easily opened and the filter medium can be easily replaced.

  In the filtering device according to claim 6 of the present invention, since the hollow portion of the filtering material having the hollow portion is accommodated in the filtering device housing in a state of being inserted into the support shaft, the filtering material can be replaced. It is an easy filtration device. In addition, since the support shaft has a branched cross-sectional shape and is excellent in pressure resistance, even when processing a high flow rate fluid, the form of the filter medium can be maintained by the support shaft, Excellent filtration performance. Furthermore, since the support shaft has a branched cross-sectional shape and a flow path for the processing fluid can be secured, there is an effect that the processing fluid can be easily discharged.

  The filtering device according to claim 7 of the present invention is a filtering device in which the filtering material itself is easy to manufacture because the filtering material is a hollow cylindrical body around which a fiber sheet is wound.

The perspective view of the storage container which comprises the housing for filter apparatuses of this invention The perspective view of the support shaft with which the storage container of this invention is provided Top view of housing for filtration device of the present invention A-A 'line cutaway view of the filter housing in FIG. Enlarged view of part E in FIG.

  FIG. 1 is a perspective view of a storage container constituting the filtration device housing, and FIG. 1 is a perspective view of a support shaft provided in the storage container, for a filtration device housing (hereinafter sometimes simply referred to as “housing”) of the present invention. 2, FIG. 3 is a top view of the filtration device housing, FIG. 4 is a cross-sectional view taken along the line AA ′ of the filtration device housing in FIG. 3, and FIG. 5 is an enlarged view of portion E in FIG. The description will be given with reference.

  The housing 1 of the present invention includes (1) a storage container 10 having a cylindrical inner wall surface and an upper end being an open end 10a, and (2) a substantially sealed space by sealing the open end 10a. And (3) a ferrule clamp 30 for connecting the storage container 10 and the cover 20, and (1) a support shaft on the surface of the storage container 10 A gantry 12 having 11 is installed. Further, a supply pipe 40 capable of supplying a fluid to be processed is connected to the supply port 13 in the center of the bottom surface of the storage container 10, and a discharge pipe capable of discharging the processing fluid to the discharge port 23 in the center of the lid 20. 50 is connected.

  More specifically, (1) the storage container 10 is a storage container 10 having a cylindrical inner wall surface whose diameter is larger than the outer diameter of the filter medium 60 to be used and whose upper end is an open end 10a. Therefore, since a space is formed between the outer surface of the filter medium 60 and the inner wall surface of the storage container 10, the fluid to be treated is supplied to the outer surface side of the filter medium 60, and the inner surface from the outer surface of the filter medium 60 is supplied. The treatment can be performed by passing the fluid to be treated through.

  The depth of the storage container 10 is the same as or slightly deeper than the sum of the height of the gantry 12 and the height of the filter medium 60. Therefore, on the inner surface of the lid 20 described later, preferably, on the surface of the gantry (the surface opposite to the inner wall surface side of the storage container 10, that is, the surface facing the inner surface of the lid 20), 24, both ends of the filter medium 60 are sealed, and the processing fluid or the processing fluid leaks from both ends of the filtering medium 60, and the processing can be performed without mixing the processing fluid and the processing fluid. it can.

A gantry 12 having a support shaft 11 on the surface is installed inside the storage container 10. Since the gantry 12 has three legs 12 a, a space is formed between the bottom surface (inner wall surface) of the storage container 10 and the gantry 12. For this reason, when the supplied fluid to be treated reaches the space, it can be diffused, and the fluid to be treated can be evenly distributed throughout the entire filter medium, so that the entire filter medium can be used efficiently and the filtration efficiency can be increased. Moreover, the lifetime of the filter medium 60 can be lengthened. In particular, when the supply port 13 that can supply the fluid to be processed is opposed to the back surface of the gantry (the inner wall surface of the storage container 10), the fluid to be processed supplied from the supply port 13 directly collides with the back surface of the gantry 12 Since the fluid to be treated can be spread evenly throughout the entire filter medium, the entire filter medium can be used efficiently, the filtration efficiency can be improved, and the life of the filter medium 60 can be extended. it can. The height of the leg portion 12a may be set as appropriate depending on the height of the filter medium 60 and the thickness of the gel elastic body and the like, and is not particularly limited, but the stand is perpendicular to the supply port 13 (radius: r). The area (= 2πrh) of the outer wall surface of the virtual cylinder (height: h) formed by connecting up to the back surface of 12 is equal to or larger than the cross-sectional area (= πr ² ) of the supply port 13. It is preferable that the height of the leg portion 12a (= h). This is because such a height allows processing without increasing the inflow resistance of the fluid to be processed even when the fluid to be processed is supplied at a high flow rate.

  The gantry 12 has a disk shape, and has an outer diameter slightly smaller than the diameter of the cylindrical inner wall surface of the storage container 10. Accordingly, when the gantry 12 is installed at the center of the bottom surface of the storage container 10, a gap is formed between the gantry 12 and the inner wall surface, and through this gap to the outer surface of the filter medium 60 disposed on the gantry. A fluid to be treated can be supplied. Moreover, if it is the mount frame 12 of such a magnitude | size, as long as it mounts on the mount frame 12, since the filter medium 60 which has various outer diameters can be used, it is excellent in versatility.

  As shown in FIG. 2, a support shaft 11 is provided on the surface of the gantry, and its cross-sectional shape (cross-sectional shape in a direction perpendicular to the direction in which the support shaft 11 extends) is such that four support pieces 11a are formed from the center portion. , Has a branched shape extending radially at an equal angle (90 °). As described above, since the support shaft 11 is provided, as long as the filter medium 60 having a hollow portion is prepared, the filter medium 60 can be reliably inserted into the specific position only by inserting the hollow portion of the filter medium 60 into the support shaft 11. Since 60 can be installed, the filter medium 60 can be easily replaced. In addition, since the support shaft 11 has a branched cross-sectional shape, is excellent in pressure resistance, and can retain the filter medium 60, it is possible to process a high flow rate fluid. Furthermore, since the support shaft 11 has a branched cross-sectional shape and a flow path for the processing fluid can be secured, there is an effect that the processing fluid can be easily discharged.

  From the viewpoint of retaining the shape of the filter material 60, the diameter (longest length) of the support shaft 11 is preferably substantially the same as the diameter of the hollow portion of the filter material 60. From the viewpoint of shape retention of the filter medium 60, the length (height) of the support shaft 11 is preferably substantially the same as the length (height) of the filter medium 60. In addition, since the support shaft 11 has a branched transverse cross-sectional shape and a space is formed between the inner surface of the filter medium 60, the movement of the processing fluid is not hindered.

  As shown in FIG. 4, a donut-shaped gel elastic body 14 centering on the support shaft 11 exists on the surface of the gantry. Since the gel elastic body 14 is present, the end of the filtering material 60 can be sealed, so that the fluid to be processed enters from the end of the filtering material 60 or the processing fluid enters the end of the filtering material 60. It is possible to prevent leakage and leakage of the fluid to be processed and the processing fluid.

  Further, the storage container 10 has a circular supply port 13 that can supply a fluid to be processed at the center of the bottom surface of the storage container 10 facing the back surface of the gantry 12, and supplies the fluid to be processed to the supply port 13. A possible supply pipe 40 is connected. Therefore, the fluid to be treated supplied from the supply port 13 collides with the back surface of the gantry 12, diffuses, and is supplied to the entire outer surface of the filter medium 60. If the supply pipe 40 is connected to the bottom surface of the storage container 10 in this way, the storage container 10 cannot be left stationary. Four leg portions 10b higher than the outer diameter of the tube 40 are provided at an equal angle (90 °).

  Further, as shown in FIG. 5, a flange 10f protruding outward is provided in the vicinity of the open end 10a of the storage container 10, and a circumferential groove 10d is formed in the flange 10f. Accommodates an O-ring 10o. As described above, since the O-ring is accommodated in the circumferential groove 10d of the flange 10f of the storage container 10, the adhesion with the lid 20 can be improved, and by having the flange 10f, the ferrule clamp 30 described later is used. The lid 20 and the storage container 10 can be reliably connected.

  The storage container 10 as described above is made of stainless steel and has excellent pressure resistance. Therefore, the fluid to be processed can be processed at a high flow rate.

  On the other hand, (2) the lid 20 has a circular discharge port 23 that can discharge the processing fluid at the center, and an inner surface facing the filter medium 60 has a donut-like shape around the discharge port 23 with the discharge port 23 at the center. A gel elastic body 24 is provided. Thus, since it has the gel elastic body 24 and can be in close contact with the end of the filter medium 60, the processing fluid is surely guided to the discharge port 23 and discharged without being contaminated with the fluid to be processed. Can do. In addition, since the gel elastic body 24 can be stuck to the inner surface of the lid 20 by applying pressure, it is easy to install. In addition, even if a fluid to be treated at a relatively high temperature (for example, 40 ° C. or higher) is processed, it is possible to maintain close contact with the end of the filter medium 60 without contraction, etc. ing. Furthermore, even if the lid 20 is opened in order to replace the filter medium 60, the state of sticking to the inner surface of the lid 20 can be maintained.

  The lid 20 has an outer diameter slightly larger than the open end 10a of the storage container 10 so that the open end 10a of the storage container 10 can be sealed to make a substantially sealed space. Therefore, the fluid to be processed supplied into the housing can be reliably processed. This “substantially” means that it can be closed except for the supply port 13 that can supply the fluid to be processed and the discharge port 23 that can discharge the processing fluid.

  Further, as shown in FIG. 5, since the lid 20 has a flange 20f protruding outward at the periphery thereof, by bringing the flange 20f into contact with the flange 10f of the storage container 10, there is also an action of the O-ring 10o. A sealed space can be formed. Further, the lid 20 and the storage container 10 can be reliably connected by firmly contacting a ferrule clamp 30 described later with the flange 20f of the cover 20 and the flange 10f of the storage container 10.

  Further, the lid 20 has a pair of grips 21 on the outer surface. Therefore, the lid 20 can be easily removed, and the replacement workability of the filter medium 60 is excellent.

  The lid 20 as described above is made of stainless steel and has excellent pressure resistance. Therefore, the fluid to be processed can be processed at a high flow rate.

  As shown in FIG. 3, since the discharge pipe 50 that can discharge the processing fluid is connected to the discharge port 23 of the lid 20, the processing fluid can be discharged through the discharge pipe 50.

  In addition, since the gel elastic body is composed of a gel material having soft elasticity mainly composed of an addition polymerization type thermoplastic block elastic body and paraffinic oil, it has excellent flexibility and stretchability. The adhesiveness with the end of the filter medium 60 and the adhesiveness with the inner surface of the lid 20 are excellent. Furthermore, since it is excellent in acid resistance, alkali resistance, chemical resistance, and heat resistance, it is not affected by various fluids to be treated, and can handle various fluids to be treated.

  Examples of the addition polymerization type thermoplastic block elastic body constituting the gel elastic body include a block copolymer comprising a polystyrene block (S) and a hydrogenated or non-hydrogenated polyisoprene block (I), and / or It can be made of a block copolymer comprising a polystyrene block (S) and a hydrogenated or non-hydrogenated polybutadiene block (B).

  More specifically, as a block copolymer comprising a polystyrene block (S) and a hydrogenated or non-hydrogenated polyisoprene block (I), saturated diblock and triblock type styrene-ethylene-propylene ( SEP) and styrene-ethylene-propylene-styrene (SEPS) are preferred. Further, styrene-ethylene-butadiene (SEB) and styrene-ethylene-butadiene-styrene (SEBS) are suitable as a block copolymer comprising a polystyrene block (S) and a hydrogenated or non-hydrogenated polybutadiene block (B). It is. These addition polymerization type thermoplastic block elastic bodies may be a single substance or a composite of two or more kinds. This addition polymerization type thermoplastic block elastic body is a diblock represented by (SI) or (SB), or S- (IS) n or S- (B-S). Triblocks represented by the general formula of n (where n = 1 to 5) and higher are preferred.

  The addition polymerization type thermoplastic block elastic body preferably has a total number average molecular weight of 5,000 to 500,000. The content of the S block unit is preferably 5 to 70 wt%, and 70% or more of the double bond of the I block unit or the B block unit is preferably hydrogenated. The weight average molecular weight of the S block unit is preferably 5,000 to 125,000, and the weight average molecular weight of the I block unit or B block unit is preferably 15,000 to 250,000.

  On the other hand, the paraffinic oil added to the addition polymerization type thermoplastic block elastic body is not particularly limited, but is preferably liquid paraffin.

  Such a gel elastic body can be obtained by molding by a method such as injection molding, compression molding, extraction molding, or sheet molding.

  The gel elastic body preferably has a compression set (JIS K6262-2013) of 7 to 20% so that the filter medium 60 can be reliably held by the high pressure from the lid 20. The Asker C hardness is preferably 30 or less.

  (3) Since the lid 20 and the storage container 10 are connected by the ferrule clamp 30, the lid 20 and the storage container 10 can be easily connected, and the connection can be easily released. Easy to replace. Since the ferrule clamp 30 has a groove inner surface 30e corresponding to the outer shape when the flange 20f of the lid 20 and the flange 10f of the storage container 10 are brought into contact with each other, the flange 20f of the lid 20 and the flange 10f of the storage container 10 are provided. The flanges are in contact with each other, and the flanges are pressed and connected. The ferrule clamp 30 shown in FIG. 3 is a lever type, and not only can the clamp be easily released by the lever operation and the lid 20 can be opened, but also a strong clamping force can be generated by the lever operation by the lever operation. The lid 20 and the storage container 10 can be firmly connected, and the fluid to be processed and the processing fluid do not leak.

  As described above, in the housing 1 of the present invention, the storage container 10 includes the support shaft 11 having the branched cross-sectional shape in which the support piece 11a extends radially from the center portion, and the filter medium 60 having the hollow portion is provided. By simply inserting the hollow portion into the support shaft 11, the filter medium 60 can be reliably installed at a specific position, so that the filter medium 60 can be easily replaced. Further, since the support shaft 11 has a branched cross-sectional shape and is excellent in pressure resistance, and the filter medium 60 can be retained by the support shaft 11, it is possible to process a high flow rate fluid. it can. Furthermore, since the support shaft 11 has a branched cross-sectional shape and a flow path for the processing fluid can be secured, there is an effect that the processing fluid can be easily discharged.

  In the filtering device of the present invention, since the hollow portion of the filtering material 60 having the hollow portion is accommodated in the housing as described above, the filtering material 60 can be replaced. It is an easy filtration device. In addition, since the support shaft 11 has a branched cross-sectional shape, is excellent in pressure resistance, and can maintain the form of the filter medium 60 by the support shaft 11, even when processing a high flow rate fluid, Excellent filtration performance. Furthermore, since the support shaft 11 has a branched cross-sectional shape and a flow path for the processing fluid can be secured, the processing fluid can be easily discharged.

  The hollow portion of the filter medium 60 has a cylindrical shape, and the diameter thereof is substantially the same as the diameter of the support shaft 11. Therefore, even when a high flow rate fluid is processed, the filter medium 60 can maintain the form, and thus has excellent filtration performance.

  In FIG. 4, as the filter medium 60, a hollow cylindrical body in which a fiber sheet is wound around a porous core 60a made of a resin such as polypropylene is used. A hollow cylindrical body wound with such a fiber sheet is not only easy to manufacture the filter material itself, but also has rigidity and excellent shape retention, so that it is a high flow rate fluid to be treated. Can also be processed. In addition, in the filter medium 60 of FIG. 4, the nonwoven fabric which supported the bitumen is used as a fiber sheet, and the outer surface has the nonwoven fabric exposed. Therefore, since the filtration apparatus using the filter medium 60 can effectively adsorb cesium, it can be preferably used for cleaning (decontamination) of contaminated water contaminated with radioactive substances. it can. In particular, when the dissolved cesium is adsorbed, unlike the case where the suspended state of the particles is filtered, clogging does not occur. Therefore, the entire filter medium can be used, which is preferable. The filter medium 60 of the present invention does not have to be filtration by adsorption, and may be any filter that can perform filtration by filtration or a combination thereof.

  In addition, in order to impart shape retention to the filter medium 60, the filter medium 60 usually has a porous outer cylinder made of a resin such as polypropylene on the outer surface, but the filter medium 60 in FIG. Since the non-woven fabric is exposed, the filter material 60 contributes to weight reduction. This is particularly significant when the filter medium 60 is used for cleaning contaminated water contaminated with radioactive substances.

  Furthermore, in the filtration apparatus in FIG. 4, since the filter medium 60 in which a nonwoven fabric is wound around the porous core 60a is used, the hygiene at the time of filter medium replacement is excellent. That is, since the filter medium 60 can be taken out by hooking a hook or the like on the opening of the porous core 60a, the filter medium 60 can be replaced without contaminating the hand. This is particularly effective when the filter medium 60 used for cleaning the contaminated water contaminated with radioactive substances is replaced.

  The outer diameter of the filter medium 60 is slightly smaller than the outer diameter of the gantry 12. Therefore, both ends of the filter medium 60 can be brought into close contact with the lid 20 and the gantry 12, preferably the gel elastic bodies 14, 24 installed on them, so that the fluid to be processed and the process fluid are passed from the end of the filter medium 60. It is possible to reliably process without entering.

  When the fluid to be processed is processed with respect to the filtration device as described above, the following operation is performed.

  First, a fluid to be treated (for example, contaminated water contaminated with a radioactive substance) is supplied from the supply port 13 into the filtration device through a supply pipe 40 using a pump (not shown). The supplied fluid to be treated collides with the rear surface of the gantry 12 and moves while diffusing through the gap between the gantry 12 and the inner wall surface of the storage container 10. The space is filled with the fluid to be treated. Thus, even if filled with the fluid to be treated, the gel elastic bodies 14 and 24 are in close contact with both ends of the filtering material 60, so that the fluid to be treated flows from only the outer surface of the filtering material 60 to the inner surface. And move. At this time, contaminants (for example, radioactive substances) are adsorbed, separated by filtration, or separated by the action of the filter medium 60, and the cleaned processing fluid exudes from the inner surface of the filter medium 60. Since a space between the support pieces 11 a remains between the support shaft 11 that holds the filter medium 60 and the inner surface of the filter medium 60, the processing fluid passes through this space and is discharged through the discharge port 23. . Then, when the life of the filter medium 60 is reached, the lever 20 of the ferrule clamp 30 is operated to release the connection between the lid 20 and the storage container 10, and when the lid 20 is opened, the gel elastic body 24 is adhered to the inner surface of the lid 20. In this state, it is possible to easily separate the gel elastic body 14 on the pedestal simply by lifting the filter medium 60, so that only the filter medium 60 can be easily taken out. Thereafter, when the hollow portion of the new filter medium 60 is inserted into the support shaft 11 and the lid 20 is closed, the gel elastic body 24 on the inner surface of the lid 20 and the gel elastic body 14 on the gantry abut against both ends of the filter medium 60. Thus, it becomes possible to prevent the fluid to be processed and the processing fluid from entering from both ends. And the lid | cover 20 and the storage container 10 are connected by the lever operation of the ferrule clamp 30, and it can be set as the reproduced | regenerated filtration apparatus.

As described above, in the filtering device using the housing 1 of the present invention, the positioning of the filtering material 60 is easy, and the lid 20 and the storage container 10 can be connected by the lever operation of the ferrule clamp 30. Work is very easy. In addition, since the filter medium 60 is supported by the support shaft 11 and is excellent in pressure resistance, it is possible to process a high flow rate fluid of 5 m ³ or more per hour. Therefore, it is particularly effective when treating a large amount of fluid to be treated, such as when treating contaminated water contaminated with radioactive substances.

  In addition, the to-be-processed fluid which can be processed in the filtration apparatus of this invention can be a suspension component in a solution, a colloidal component, a soluble component (ion), or these 2 or more types. In particular, a soluble component (ion) is particularly preferable because the entire filter medium can be used effectively.

  The housing 1 and the filtration device of the present invention shown in FIGS. 1 to 5 are configured as described above, but may be a housing or a filtration device that is different in the following one point or two or more points.

(1) The shape of the inner wall surface of the housing need not be cylindrical. For example, it may be a regular polygonal column such as a regular hexagonal column. Basically, a uniform filtering action can be exhibited when the shape is in accordance with the outer shape of the filter medium. As described above, the inner wall surface of the housing is cylindrical because the filter medium is easy to manufacture when it is a hollow cylinder wound with a fiber sheet, and it is rigid and has excellent shape retention. Is preferred.

(2) The support shaft may be installed directly on the bottom surface of the storage container. However, as described above, by installing the gantry, the fluid to be treated can be diffused, and the entire filter medium can be involved in the filtration. Therefore, the support shaft is preferably installed on the gantry.

(3) Although it has a supply port in the center part of the bottom face of a storage container, it does not need to be a center part. However, the center portion is a preferable mode because the fluid to be treated can be uniformly diffused by colliding with the center portion of the back surface of the gantry.

(4) Although the discharge port is provided at the center of the lid, it is not necessary to be at the center. However, since the filter medium can be arranged in the central part of the storage container, it can be filtered uniformly, the diameter of the hollow part of the filter medium can be minimized, and the volume of the filter medium can be increased. Therefore, it is preferable to have a discharge port at the center of the lid.

(5) In the housing, the storage container has a supply port and the lid has a discharge port, but the lid may have a supply port and the storage container may have a discharge port. However, when the filter medium simply winds the fiber sheet and the nonwoven fabric is exposed on the outer surface, the fluid to be treated moves from the inner surface to the outer surface of the filter medium, and the shape of the filter medium cannot be maintained. In some cases, in the case of a filter medium with a nonwoven fabric exposed on the outer surface, it is preferable to have a supply port in the storage container and a discharge port in the lid.

(6) The gantry has three legs, but may have four or more legs. In any case, the stability of the gantry is excellent when the legs are provided at an equal angle.

(7) The supply port does not need to be disposed to face the back surface of the gantry. However, since the fluid to be treated supplied from the supply port directly collides with the back surface of the gantry and can be diffused, and the fluid to be treated can be distributed evenly throughout the filter medium, the supply port faces the back surface of the gantry. Are preferably arranged.

(8) The shape of the surface of the gantry need not be circular, and may be a regular polygon such as a regular hexagon. However, it is preferable that the shape is similar to the cross-sectional shape of the inner wall of the storage container so that a uniform gap can be formed between the inner wall surface of the storage container and the frame periphery.

(9) The pedestal is not particularly limited as long as the end of the filter material is completely mounted on the pedestal. As described above, the pedestal has various diameters slightly smaller than the diameter of the inner wall surface of the storage container. Since a filter medium having a large outer diameter can be used, it is preferable.

(10) The cross-sectional shape of the support shaft in FIG. 2 is a branched shape in which four support pieces extend radially from the central portion, but the number of support pieces may be three or five or more. good. However, in any case, it is preferable that the support pieces have a branched shape extending radially at an equal angle because pressure can be evenly received. Further, since the processing fluid moves in the space between the support pieces, the number of support pieces is preferably 12 or less.

(11) The diameter (longest length) of the support shaft may be smaller than the diameter of the hollow portion of the filter medium. When it is so small, the filter medium can be easily detached. However, it is preferable that the diameter of the hollow portion is substantially the same from the viewpoint of shape retention of the filter medium.

(12) The length (height) of the support shaft does not need to be substantially the same as the length (height) of the filter medium, but from the viewpoint of shape retention, the length (height) of the filter medium Preferably they are approximately the same.

(13) The elastic body on the surface of the gantry and / or the elastic body on the inner surface of the lid need not be the gel elastic bodies 14 and 24 as long as the end of the filter medium can be sealed. For example, vulcanized rubbers such as natural rubber and synthetic rubber; thermosetting resin elastomers such as urethane rubber, silicone rubber and fluororubber; thermoplastic elastomers such as styrene, olefin, vinyl chloride, urethane and amide; It may be. However, the gel elastic bodies 14 and 24 are excellent in heat resistance, can treat a fluid to be treated at a relatively high temperature, can be in close contact with the lid or the gantry, and require an adhesive to join the lid and the gantry. Therefore, there is no possibility of contaminating the processing fluid, which is preferable.

(14) The elastic body on the surface of the gantry and the elastic body on the inner surface of the lid may be an elastic body made of the same material or an elastic body made of different materials. However, any of them is a gel elastic body because it is excellent in the above-mentioned effect, and is suitable.

(15) The number of leg portions on the outer wall surface of the storage container is not necessarily four, and may be three or five. In any case, it is preferable that the legs are provided at an equal angle.

(16) It is not necessary to have a flange protruding outward near the open end of the storage container, and it is not necessary to have a circumferential groove on the flange. However, having a flange in the vicinity of the open end of the storage container and having a circumferential groove allows the O-ring 10o to be accommodated, thereby improving the hermetic seal between the storage container and the lid, and connecting with a ferrule clamp. Is preferable.

(17) The storage container does not need to be made of stainless steel, and may be a metal such as iron or aluminum, or a synthetic resin such as polypropylene, polytetrafluoroethylene, or vinyl chloride. However, when the fluid to be treated is processed at a high flow rate, it is preferably made of stainless steel having excellent pressure resistance and chemical resistance.

(18) The outer diameter of the lid need not be larger than the open end of the storage container, and may be substantially the same size. However, it is preferable to have a flange larger than the open end, since the adhesion between the lid and the storage container can be ensured.

(19) The lid does not need to have an outwardly projecting flange around it. However, when the storage container has a flange, it is preferable that the lid has a flange so that the container comes into contact with the flange and is easily sealed.

(20) The lid does not need to have a pair of handles, and may have one handle or may have three or more handles.

(21) The lid need not be made of stainless steel, and may be a metal such as iron or aluminum, or a synthetic resin such as polypropylene, polytetrafluoroethylene, or vinyl chloride. However, when the fluid to be treated is processed at a high flow rate, it is preferably made of stainless steel having excellent pressure resistance and chemical resistance.

(22) The ferrule clamp that connects the lid and the storage container does not need to be a lever type, and may be a fall bolt type with a wing nut or a bolt nut type. However, the lever type is preferable because the clamp can be easily opened and the lid can be opened by lever operation, and the lid and the storage container can be firmly connected by the lever principle.

(23) The hollow portion of the filter medium does not need to be cylindrical, and may be a polygonal column such as a hexagonal column. However, it is preferable that the filter medium constituting material (for example, a fiber sheet) is in a columnar shape in that the entire filter medium can be used due to the uniform presence of the filter medium constituent material (for example, fiber sheet).

(24) When the diameter of the hollow portion of the filter medium is larger than the diameter of the support shaft, the filter medium can be easily detached. However, it is preferable that the diameter of the hollow portion of the filter medium is substantially the same as the diameter of the support shaft so that the shape of the filter medium can be maintained by the support shaft and a high flow rate of the fluid to be processed can be processed.

(25) Although the filter medium has a porous core, it need not have a porous core. However, it is preferable to have a porous core because the shape of the filter medium is excellent and the filter medium can be easily taken out using the opening of the porous core.

(26) The porous core may be made of not a polypropylene but a synthetic resin such as ABS (acrylonitrile-butadiene-styrene copolymer), polystyrene, polyethylene, or a metal.

(27) The filter medium does not need to be a hollow cylinder around which a fiber sheet is wound, and may be a hollow cylinder obtained by folding a fiber sheet or a composite fiber sheet combined with a reinforcing sheet such as a net. However, it is preferably a hollow cylindrical body wound with a fiber sheet that can increase the amount of the fiber sheet and can withstand the pressure when the lid is closed to maintain the form.

(28) The fiber sheet which comprises a filter medium can be suitably selected according to a to-be-processed fluid. For example, it can be comprised from 1 or more types, such as a melt blown nonwoven fabric, a spun bond nonwoven fabric, a dry nonwoven fabric, and a wet nonwoven fabric. In particular, when non-woven fabrics having different fiber diameters are combined, a fluid to be treated containing particles can be efficiently filtered in order from particles having a larger particle diameter to particles having a smaller particle diameter. In addition, if the fiber sheet carries various functional particles, various functions can be exhibited. For example, as described above, when a nonwoven fabric carrying bitumen is used, contaminated water contaminated with radioactive substances can be purified (decontaminated), and a fiber sheet carrying activated carbon or an ion exchange resin can be used. When used, it can be used for removal of odorous substances, wastewater treatment, or recovery of valuable materials such as precious metals.

(29) The outer surface of the filter medium may be in a state where the filter medium constituting material (for example, a fiber sheet) is exposed, or may have a porous outer cylinder. However, it is preferable that the filter material constituting material is in an exposed state because it contributes to a weight reduction when discarded.

(30) Although the filtration apparatus of the present invention can process a high-flow processed fluid, it may process a processed fluid of less than 5 m ³ per hour.

  Since the filtration device of the present invention can be easily exchanged for the filter medium, it can be particularly suitably used when cleaning contaminated water having a high exchange frequency. For example, it can be suitably used as a filtration device for cleaning contaminated water contaminated with radioactive substances. Since the filtration device of the present invention is compact and easy to carry, it can be used in places where installation places are limited. For example, it is particularly effective as a filtering device for cleaning contaminated water in a pond because it has been contaminated with radioactive substances.

DESCRIPTION OF SYMBOLS 1 Housing 10 Storage container 10a Open end 10b Leg part 10f Flange 10d Circumferential groove 10o O-ring 11 Support shaft 11a Support piece 12 Mount 12a Leg part 13 Supply port 14 Gel elastic body 20 Lid 20f Flange 21 Handle 23 Discharge port 24 Gel elastic body 30 Ferrule clamp 30e Groove inner surface 40 Supply pipe 50 Discharge pipe 60 Filter medium 60a Porous core

Claims (7)

A housing for a filtration device having a storage container having an open end, and a lid that can be made into a substantially sealed space by sealing the open end, the storage container having a branch extending radially from a central portion A housing for a filtering device, comprising a support shaft having a cross-sectional shape having a circular shape. The filter housing according to claim 1, wherein the storage container has a gantry capable of forming a space between the inner wall surface and a support shaft on the gantry surface. The housing for a filtration device according to claim 1 or 2, wherein the storage container has a supply port that can supply a fluid to be processed so as to face the back surface of the gantry. The housing for a filtration device according to any one of claims 1 to 3, wherein the lid has a discharge port capable of discharging a processing fluid and has a gel elastic body surrounding the discharge port. The housing for a filtration device according to any one of claims 1 to 4, wherein the lid and the storage container are connected by a ferrule clamp. The filtration device according to any one of claims 1 to 5, wherein a hollow portion of a filtration material having a hollow portion is accommodated in a state of being inserted into a support shaft. . The filtration device according to claim 6, wherein the filter medium is a hollow cylinder around which a fiber sheet is wound.

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