JPH0592108A - Filtration apparatus - Google Patents

Abstract

PURPOSE:To provide a filtration apparatus with increased capacity. CONSTITUTION:Filter bases 1 having through holes 10 are piled, and spaces is provided between the bases. A fluid to be treated is supplied to flow in the direction traversing the piled filter backing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtering device for filtering solid particles mixed from various fluids such as liquid and gas, or for collecting dust by filtration.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, a base material 1 as shown in FIG. 9 is laminated by filtering or filtering / dust collecting (in this specification, filtration or filtering / collecting dust is collectively called filtration). By configuring a filtering device, only the fluidized bed of various fluids such as liquids and gases is passed through the gap formed between the adjacent base materials, and the mixed particles are separated to perform the filtering treatment of the fluids. It was

This filtering device is formed by laminating a plurality of filtration base materials 1 each having a through hole 10 formed inward and a gap formed between adjacent ones. A fluid is supplied from one end side (X) of the laminated body of the filtration substrate 1, and the fluid is supplied from the inner side (I) to the outer side (O) or from the outer side (O) to the inner side (I). ) [In the figure, from the outer side (O) to the inner side (I)], only the solid particles and the fluidized bed which are smaller than the respective gaps between the adjoining filtration base materials 1 are allowed to pass, and the outlet (Y ), The filtration treatment is performed.

The above-mentioned filtering device has an excellent feature that it can be repeatedly used as long as the filtering base material 1 is not damaged because the laminated filtering base materials 1 can be disassembled and washed. However, although it is a filtration device having the above-mentioned excellent characteristics, the filtration residue gradually accumulates around the laminated body of the filtration base material 1 during filtration, so that the treatment in one filtration operation is performed. There was the problem that the amount of fluid possible was limited to some extent.

[0005]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a filtration device capable of increasing the amount of fluid that can be processed in one filtration operation as compared with the conventional device.

[0006]

In order to solve the above problems, the present invention takes the following technical means.
That is, in the filtration device of the present invention, a plurality of filtration base materials 1 in which the through holes 10 are bored inward and a gap is formed between adjacent ones are laminated, The fluid flow to be processed was supplied in a transverse direction to the stack.

[0007]

As a result of adopting the above means, the present invention has the following effects. In the filtration device of the present invention, the fluid flow to be treated is supplied in the transverse direction to the laminated body of the filtration base material 1. Therefore, even if the filter cake is collected around the laminated body of the filtration base material 1, It is swept away by a fluid stream supplied transversely to the body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The filtration device of the present invention will be described below with reference to the drawings shown as embodiments. FIG. 5 shows the filtration base material 1 used in this embodiment.
Is formed into a thin disk shape. A plurality of ridges 11 are formed between the inner peripheral side and the outer peripheral side on both the front and back sides, and the ridges 11 on both the front and back sides are opposite to the radial line of the base material so as to cross each other. It is tilted in the direction. When the filtration base materials 1 are overlapped with each other, a gap is formed between the adjacent protrusions 11 and the protrusions 11.

In addition to the filter substrate 1 shown in FIG. 5, for example, protrusions 12 are formed on both front and back surfaces (see FIG. 9) to form a gap between adjacent filter substrates. It may be one. The filtering device of the present invention can be configured as follows, for example, by using the filtering substrate 1 as described above. FIG. 2 shows a cylinder 2 (hereinafter referred to as a fluidized bed outlet cylinder) for leading out the fluidized bed obtained by the filtration process. A plurality of perforations 20 are formed on each surface of the fluidized bed lead-out tube 2, and a laminate of the filtration substrate 1 (see FIG. 3).
The hollow rectangular tube 21 to be inserted on the inner peripheral side of the reference section) and the bolt portions 22 attached by welding to both ends thereof.
The guide holes 24 (see FIG. 4) are bored in the axial direction of only the bolts 22 on both ends of the fluidized bed which are on the fluidized bed outlet side 23.
The fluidized bed obtained by the filtration process is led out from the guide hole 24.

The bolt portion 22 having the guide hole 24 is attached to the fluidized bed lead-out column 3 by a nut through a washer and a spring washer. The fluidized bed lead-out column 3 is for leading out the fluid that has been subjected to the filtration treatment to the outside of the filtration device. When forming the laminated body of the filtration base material 1 on the outer peripheral side of the fluidized bed lead-out cylinder 2, the nut is unscrewed to remove the fluidized bed lead-out cylinder 2 from the fluidized bed lead-out column 3, and then the other end. The filtration base material 1 is laminated between the nut, the washer, and the spring washer screwed to the side bolt portion 22. Then, it is fixed to the fluidized bed lead-out column 3 in such a manner that the fluid flow to be treated is supplied in a transverse direction to the laminated body of the filtration substrate 1 (see FIG. 3).

1 and 4 illustrate the operating state of the filtration device of this embodiment. From the untreated fluid reservoir 5 to which the raw water 4 to be filtered is sent, the pump 5 to the filtering device.
0 supplies fluid. In the system using this filtering device, the untreated fluid tank 6 (hereinafter referred to as untreated tank)
The fluid circulates between the inflow port 60 provided near the lower end of the above, the return port 61 provided near the upper end, and the untreated fluid reservoir 5.

The fluid is filtered as follows. The fluid to be filtered is introduced into the untreated tank 6 through the inflow port 60 of the untreated tank 6. Before this, as shown in FIG. 4, a filter aid layer 7 may be pre-coated and formed around the filter medium by a known method. As a filter aid, diatomaceous earth is used for solid-liquid separation, activated carbon for water quality improvement, ion exchange resin for seawater desalination, sawdust for oil / water separation, and wastewater treatment. For this, bark carbon can be used.

When a certain amount of pressure is applied to the fluid in the untreated tank 6, solid particles having a larger particle size are separated from each of the multi-layered gaps between the adjacent filter substrates 1 of the filter medium, and the gaps (filter aids) are separated. In the case of pre-coating, the filtration treatment is performed by passing only the solid particles smaller than the gap and the filter aid layer 7) and the fluidized bed to the inner peripheral side of the filter medium.

The fluidized bed reaching the inner peripheral side of the laminated body of the filtration base material 1 reaches the inside of the fluidized bed lead-out tube 2 through the perforations 20 and is filtered from the guide hole 24 through the fluidized bed lead-out column 3. Outside the device (Z)
Sent to. On the other hand, the fluid sent back to the untreated fluid reservoir 5 is again supplied to the filtering device by the pump 50. In this way, the filtering process of the fluid can be performed.

[0015] Even if the above-mentioned filtration device continues the filtration process to some extent, the filter residue that tends to accumulate around the laminate of the filter substrate 1 is washed away by the fluid flow supplied in the direction traversing the laminate. Therefore, the amount of fluid that can be processed in one filtration operation can be increased more than ever before. Also, so-called back washing can be performed between the filtration base materials 1 by supplying compressed air to the fluidized bed outlet columns 3 during the filtration process.

FIG. 6 and FIG. 7 show concrete examples of the configuration of a system using the filtration device of the present invention.

[0017]

EFFECTS OF THE INVENTION The present invention has the above-described structure, and even if the filter cake is accumulated around the laminated body of the filtration substrate 1, the fluid flow supplied in the direction traversing the laminated body causes Since it is swept away, it is possible to provide a filtration device capable of increasing the amount of fluid that can be processed in one filtration operation as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a structural example of a system using a filtering device of the present invention.

FIG. 2 is an enlarged plan view of a fluidized bed outlet cylinder and a fluidized bed outlet column of FIG.

FIG. 3 is an enlarged plan view for explaining a state in which a filtration base material is laminated on the outer circumference of the fluidized bed outlet cylinder of FIG.

FIG. 4 is a partially enlarged cross-sectional view illustrating a usage state of the filtration device in FIG.

FIG. 5 is an overall perspective view of a filtration substrate used in the filtration device of FIG.

FIG. 6 is a partial cross-sectional perspective view showing a specific configuration example of a system using the filtration device of the present invention.

FIG. 7 is a partial cross-sectional perspective view showing another specific configuration example of a system using the filtration device of the present invention.

FIG. 8 is a cross-sectional view illustrating a conventional filtration device.

9 is an overall perspective view of a filtration substrate used in the filtration device of FIG.

[Explanation of symbols]

 1 through hole 10 filtration base material

Claims (1)

[Claims] 1. A laminated body of the filtration base material 1, wherein a plurality of filtration base materials 1 each having a through hole 10 formed therein and a gap being formed between adjacent ones are laminated. The filtration device is characterized in that the fluid flow to be treated is supplied in a transverse direction.