JP2004230255A - Filter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To classify particles according to their diameters in a filter for a fluid or liquid containing the particles. <P>SOLUTION: A plurality of filters 1 and 2 are provided in a casing (3, 4, and 5) and are arranged so as to be spaced from each other. The filters 1 and 2 have different cut sizes. The fluid or liquid 9 containing particles is introduced into the casing (3, 4, and 5) and is passed through the respective filters 1 and 2. The respective filters 1 and 2 filtrate the fluid or the liquid 9 to classify the particles, and then the particles are withdrawn from the casing (3, 4, and 5). <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
[Industrial applications]
The present invention relates to a device for filtering a fluid or a liquid containing particles.
[0002]
[Prior art and its problems]
Hitherto, various configurations of filtration devices for filtering fluids or liquids have been known and used. (For example, see Patent Document 1)
[0003]
By the way, for example, a fluid such as a polymer or a monomer contains particles of various diameters. Recently, attempts have been made to use the particles for processing precision parts, fiber products and the like. In this case, in order to improve the processing accuracy and quality, it is necessary to classify the particles according to the particle size, and there is a demand for the development of an apparatus for achieving the classification. The same applies to liquids containing particles.
[0004]
[Patent Document 1]
JP-A-7-171315
[Object of the invention]
Accordingly, the present invention has been made for the purpose of classifying particles according to particle diameter in a fluid or liquid filtration device containing particles.
[0006]
Configuration of the Invention
According to the present invention, a plurality of filters are provided in the casing, and are arranged at intervals from each other. The filters have different classifications. Then, a fluid or liquid containing particles is guided into the casing, passes through each filter, filters the fluid or liquid by each filter, classifies the particles, and then removes the particles from the casing.
[0007]
In a preferred embodiment, a flat plate is used for each filter, and pressure or gravity acts on the fluid or liquid, causing the fluid or liquid to flow in a direction perpendicular to the filters and pass through each filter.
[0008]
In another embodiment, each filter is cylindrical. The filters have different diameters. And each filter is arrange | positioned in concentric cylinder shape, and a fluid or liquid is guided inside a small diameter filter in a casing. Furthermore, the casing and the filter rotate about the central axis of the filter, and a centrifugal force acts on the fluid or liquid, and the fluid or liquid flows in the radial direction of the filter and passes through each filter.
[0009]
[Explanation of the embodiment]
Hereinafter, embodiments of the present invention will be described.
[0010]
FIG. 1 shows an apparatus according to the present invention. This device is a fluid or liquid filtering device, and has a plurality of filters 1 and 2, and the filters 1 and 2 are provided in casings 3, 4 and 5 and are spaced from each other. In this embodiment, the casings 3, 4, 5 extend vertically and are divided into three stages, the upper part 3 and the middle part 4 are cylindrical or prismatic, and the lower part 5 is conical. The shape is pyramidal or pyramidal. Further, a pair of filters 1 and 2 are attached to one surface of the punching plates 6 and 7 and combined with the casings 3, 4 and 5, and the filter 1 and the punching plate 6 are arranged between the upper part 3 and the intermediate part 4. , A filter 2 and a punching plate 7 are arranged between the intermediate part 4 and the lower part 5.
[0011]
Therefore, a pair of filters 1 and 2 are arranged in the casings 3, 4 and 5 at intervals in the vertical direction. The filters 1 and 2 are flat and extend in the horizontal direction. The punching plates 6 and 7 are also plate-shaped, extend in the horizontal direction, and the filters 1 and 2 are attached to the upper surfaces of the punching plates 6 and 7. Further, casings 3, 4, 5, filters 1, 2 and punching plates 6, 7 are connected and fixed by fixing means 8 such as bolts. Of the upper part 3, the middle part 7 and the lower part 8 of the casing, the upper part 3 can be removed from the filter 1 and the punching plate 6, and the middle part 4 and the lower part 5 can be removed from the filter 2 and the punching plate 7. be able to.
[0012]
Further, the filters 1 and 2 have different classification degrees. Here, the classification degree is a numerical value indicating the maximum particle size that passes through the filter, and is sometimes referred to as a particle effective passage diameter. In this embodiment, the upper filter 1 having a relatively large classification degree is used, and the lower filter 2 having a relatively small classification degree is used. For example, the filter 1 has a classification degree of 3μ, that is, the particle effective passage diameter, and the filter 2 has a classification degree of 1μ, that is, the particle effective passage diameter. Accordingly, particles having a diameter of 3 μ or less pass through the upper filter 1, and particles having a diameter of 1 μ or less pass through the lower filter 2.
[0013]
This apparatus is of a batch type. Then, a fluid or liquid 9 containing particles is supplied from above the casings 3, 4, 5 and guided into the casings 3, 4, 5, and the cover 10 is arranged on the top surfaces of the casings 3, 4, 5; The top surface is covered by the cover 10.
[0014]
Further, pressure or gravity acts on the fluid or liquid 9 in the casings 3, 4, and 5. Therefore, the fluid or liquid 9 flows in a direction perpendicular to the filters 1 and 2, descends and passes through the filters 1 and 2. As shown in FIG. For particles having the above diameter, the particles 11 do not pass through the upper filter 1, and for particles having a diameter of 1 μ or more, the particles 12 do not pass through the lower filter 2. Therefore, the fluid or liquid 9 is filtered by each of the filters 1 and 2, the particles 11 and 12 thereof are classified, and the particles 11 having a diameter of 3 μ or more accumulate on the upper surface of the filter 1 and have a diameter in the range of 1 to 3 μ. Are deposited on the upper surface of the filter 2. On the other hand, the fluid or liquid 9 that has passed through the filters 1 and 2 is discharged into the container 13.
[0015]
Therefore, the particles 11 and 12 are classified according to the particle diameter. Thereafter, as shown in FIG. 3, the lower portion 5 of the casing is removed from the filter 2 and the punching plate 7, and as shown in FIG. 4, the intermediate portion 4 is removed from the filter 2 and the punching plate 7, and the particles 12 are removed. It is taken out of the casings 3, 4, and 5. Further, thereafter, as shown in FIG. 5, the upper part 3 is removed from the filter 1 and the punching plate 6, and the particles 11 are removed from the casings 3, 4, and 5. Therefore, after classification of the particles 11 and 12, it can be used for processing precision parts, textiles and the like.
[0016]
As shown in FIG. 6, a valve 14 may be provided in the flow path of the fluid or the liquid 9 so that the fluid or the liquid 9 is used in the plurality of casings 3, 4, 5 and supplied alternately.
[0017]
FIG. 7 shows another type of device. Also in this device, a plurality of filters 15 and 16 are provided in a casing 17 and are arranged at an interval from each other. However, as shown in FIG. The filters 15 and 16 have different diameters. Each of the filters 15 and 16 is arranged in a concentric cylindrical shape. Therefore, the filters 15 and 16 are arranged at intervals in the radial direction. In this embodiment, a pair of filters 15 and 16 are provided in a casing 17. Further, cylindrical plates are used for the punching plates 18 and 19, and the filters 15 and 16 are attached to the inner surfaces of the punching plates 18 and 19. The casing 17 also has a cylindrical shape. The casing 17, the filters 15, 16 and the punching plates 18, 19 are arranged in a concentric tube shape. The casing 17, the filters 15, 16 and the punching plates 18, 19 extend vertically.
[0018]
Further, in this embodiment, the covers 20, 21 are provided on the bottom surfaces of the filters 15, 16 and the punching plates 18, 19, the cover 22 is provided on the bottom surface of the casing 17, and the bottom surfaces are covered by the covers 20, 21, 22. The punching plate 18 is supported by a cover 21 of the punching plate 19, and the punching plate 19 is supported by a cover 22 of the casing 17. Further, ring-shaped holders 23 and 24 are provided on the covers 21 and 22, the punching plate 18 is positioned by the holder 23, and the punching plate 19 is positioned by the holder 24. Further, the casing 17 is guided by the bearing 25, and the casing 17 is rotatable around the central axis of the filters 15 and 16 and is connected to the motor 26. The motor 26 can be controlled by an inverter 27.
[0019]
Further, similarly to the filters 1 and 2 in FIG. 1, the filters 15 and 16 have different classification degrees from each other. In this embodiment, a filter having a relatively large classification degree is used for the small-diameter filter 15, and a filter having a relatively small classification degree is used for the large-diameter filter 16. For example, the filter 15 has a classification degree of 3 μ, that is, the particle effective passage diameter, and the filter 16 has a classification degree of 1 μ, that is, the particle effective passage diameter. Therefore, particles having a diameter of 3 μ or less pass through the small-diameter filter 15, and particles having a diameter of 1 μ or less pass through the large-diameter filter 16.
[0020]
This device is of the centrifugal type. Then, the fluid or liquid 9 containing particles is supplied from above the casing 17 and is guided into the casing 17, and the fluid or liquid 9 is guided inside the small-diameter filter 15 in the casing 17. Thereafter, the cover 28 is disposed on the top surface of the casing 17 and the top surface is covered with the cover 28. Further, ring-shaped holders 29 and 30 are provided on the cover 28, the punching plate 18 is positioned by the holder 29, and the punching plate 19 is positioned by the holder 30.
[0021]
Further, the casing 17 is driven by the motor 26, and the casing 15, the filters 15, 16 and the punching plates 18, 19 rotate around the central axes of the filters 15, 16. Therefore, a centrifugal force acts on the fluid or the liquid 9 and the fluid or the liquid 9 flows in the radial direction of the filters 15 and 16 and passes through the filters 15 and 16, but as shown in FIGS. Of the particles of the fluid or liquid 9, those having a diameter of 3 μ or more do not pass through the small-diameter filter 15, and those having a diameter of 1 μ or more have the particles 12 passing through the large-diameter filter 16. do not do. Therefore, the fluid or liquid 9 is filtered by each of the filters 15 and 16, the particles 11 and 12 thereof are classified, and the particles 11 having a diameter of 3 μ or more accumulate on the inner surface of the filter 15. Particles 12 accumulate on the inner surface of the filter 16. On the other hand, with respect to the fluid or liquid 9 that has passed through the filters 15 and 16, an appropriate rotary discharge mechanism is provided between the casing 17 and the valve 31, and the fluid or liquid 9 is discharged from the valve 31.
[0022]
Therefore, the particles 11 and 12 are classified according to the particle diameter, and then the cover 28 is removed from the casing 17 as shown in FIG. Further, the filter 15 and the punching plate 18 are pulled out of the casing 17, and the particles 11 are taken out of the casing 17. Further, as shown in FIG. 12, the filter 16 and the punching plate 19 are pulled out of the casing 17, and the particles 12 are taken out of the casing 17. Therefore, the particles 11 and 12 can be used for processing precision parts, textiles and the like.
[0023]
In the above-described embodiment, the case where a pair of filters are provided in the casing and arranged at intervals from each other has been described.However, more filters are provided within the casing and arranged at intervals from each other. Classification degrees different from each other, that is, particle effective passage diameters may be used. Then, the fluid or liquid can be filtered by each filter, and the particles can be classified.
[0024]
【The invention's effect】
As described above, according to the present invention, particles can be classified according to particle diameter, taken out of the casing, and used for processing precision parts, textiles, and the like, thereby achieving the intended purpose. You can do it.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a state where a fluid or a liquid of the apparatus of FIG. 1 is filtered and particles thereof are classified.
FIG. 3 is a longitudinal sectional view showing a step of taking out particles of the apparatus of FIG. 2;
FIG. 4 is a longitudinal sectional view showing a next step of the apparatus in FIG. 3;
FIG. 5 is a longitudinal sectional view showing a next step of the apparatus in FIG. 4;
FIG. 6 is a longitudinal sectional view showing another embodiment.
FIG. 7 is a longitudinal sectional view showing another embodiment.
8 is a cross-sectional view of the device of FIG.
9 is a longitudinal sectional view showing a state in which a fluid or liquid of the apparatus of FIG. 7 is filtered and its particles are classified.
FIG. 10 is a cross-sectional view of the device of FIG. 9;
FIG. 11 is a longitudinal sectional view showing a step of taking out particles of the apparatus of FIG. 9;
FIG. 12 is a longitudinal sectional view showing a next step of the apparatus in FIG. 11;
[Explanation of symbols]
1, 2, 15, 16 Filter 3, 4, 5, 17 Casing 9 Fluid or liquid 11, 12 Particles

Claims (3)

A casing,
A plurality of filters having different degrees of classification, provided in the casing, and arranged at intervals from each other;
A fluid or liquid containing particles is guided into the casing, passed through each of the filters, the fluid or liquid is filtered by each of the filters, the particles are classified, and then the particles are removed from the casing. A filtration device, characterized in that: A flat plate is used for each of the filters, pressure or gravity is applied to the fluid or the liquid, the fluid or the liquid is caused to flow in a direction perpendicular to the filters, and is allowed to pass through the filters. The device according to claim 1, characterized in that: A cylindrical filter is used for each filter, each filter has a different diameter, the filters are arranged concentrically, and the fluid or liquid is guided inside the small-diameter filter in the casing. At the same time, the casing and the filter are rotated around the central axis of the filter, a centrifugal force is applied to the fluid or the liquid, and the fluid or the liquid is caused to flow in the radial direction of the filter and passes through each of the filters. The apparatus according to claim 1, wherein:

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