JPH0592111A - Fluid treatment apparatus - Google Patents

Abstract

PURPOSE:To facilitate the regeneration of a filter and to improve treatment efficiency by discharging fluid after precipitation of solid in the lower part of a solid separation cylinder and discharging treated fluid passed through a filter in an upper multistage filtration cylinder. CONSTITUTION:Fluid including city water is supplied from a supply pipe 6 to a solid separation cylinder 2 along the tangential line. Solid is precipitated by centrifuging, and the precipitate is prevented from dispersion by buffleplates 7. Treated water after removal of solid is contacted with a filter 3 in an upper vertical two-stage filtration cylinder 1 and filtered by passing through filter aid which constitutes the filter 3, the space between stacked disks 11, and holes 10a of a horizontal pipe 10 to be discharged from a discharge pipe 4. The treated water, which has not passed through the filter 3, is returned from a return pipe to the solid separation cylinder 2 to be treated again. The filter 3 is regenerated by back flow of compressed air or pressure water from the discharge pipe 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid treatment device which can be used for purification of various fluids such as domestic water, industrial waste water, combustion exhaust gas, gas containing oil mist, desalination of seawater and the like.

[0002]

2. Description of the Related Art Conventionally, in a fluid treatment device of this type, for example, when it is necessary to highly accurately purify a large amount of heavily contaminated treated water, the treated water is activated by biological treatment. The sludge method, contact oxidation method, coagulation sedimentation method by chemical treatment, pressure flotation method, sand filtration method by physical treatment were used.

[0003]

However, in the conventional fluid treatment apparatus, in the above case, it is necessary to separately install many biological treatment tanks and sedimentation treatment tanks, so that the apparatus main body becomes large in size and widely installed. Since it requires an area, there is a problem that it is difficult to secure the installation place, and in the sand filtration method, since it is necessary to frequently replace the dirty filtration filter, this replacement work is very troublesome,
Moreover, there is a problem that the filtration accuracy does not increase.

Therefore, according to the present invention, the apparatus main body is installed vertically above the ground or installed deep underground, so that the installation area can be saved, and the labor of replacing the filtration filter can be saved, and a large capacity can be achieved. The object of the present invention is to provide a fluid processing apparatus capable of efficiently processing a processing fluid with high accuracy.

[0005]

In the fluid treatment apparatus according to claim 1 of the present invention, a plurality of stages of filtration cylinders 1 are vertically connected, and a solid separation cylinder 2 is connected to the bottommost filtration cylinder 1. In this configuration, each of the filtration cylinders 1 is provided with a filtration filter 3 which can be connected to the inside thereof.
To the above, the outflow pipe 4 of the processing fluid that has passed through the filtration filter 3 is connected, and the return pipe 5 of the processing fluid that has not passed through the filtration filter 3 is connected to The fluid inflow pipe 6 is connected, the baffle plate 7 is arranged inside, and the sediment discharge pipe 8 is connected to the lower part.

Further, a fluid treatment apparatus according to a second aspect of the present invention is the fluid treatment apparatus according to the first aspect,
The filtration filter 3 is formed by laminating a large number of donut-shaped disks 11. The fluid treatment apparatus according to claim 3 of the present invention is the fluid treatment apparatus according to claim 1, wherein a plurality of donut-shaped discs 11 are laminated on the filtration filter 3 and the discs 11 are provided on the outer periphery thereof. The filter aid 12 is attached so that it can be backwashed and washed.

[0007]

Since the fluid treatment apparatus according to the first aspect of the present invention has the above-mentioned configuration, the solid matter in the treatment fluid precipitates in the lower portion of the solid separation cylinder 2, and the solid matter is blocked by the baffle plate 7 to prevent this precipitate. It is discharged from the discharge pipe 8 without rising in the solid separation cylinder 2. On the other hand, the treatment fluid passes through the respective filtration filters 3 in the plurality of stages of filtration cylinders 1, so that a large volume of treatment fluid is filtered, and the filtered treatment fluid flows out from the outflow pipe 4. In addition, the processing fluid that has not passed through the filtration filter 3 in the filtration cylinder 1 is returned from the return pipe 5, and the inflow pipe 6 is again supplied.
Flow into the solid separation cylinder 2 for reprocessing.

Furthermore, since the fluid treatment apparatus according to the second aspect of the present invention has the above-mentioned structure, if the filtration function of the disk 11 of the filtration filter 3 deteriorates, the compressed air or high-pressure water will flow backward from the outflow pipe 4. , A large number of discs 1
The contaminants attached during the period 1 fall off, settle in the lower part of the solid separation cylinder 2, and are discharged from the discharge pipe 8. Further, since the fluid treatment apparatus according to claim 2 of the present invention has the above-mentioned configuration, when the filtering function of the disk 11 and the filter aid 12 of the filtration filter 3 deteriorates, compressed air or high pressure water is caused to flow backward from the outflow pipe 4. If so, the contaminants adhered between the large number of discs 11 and the filter aid 12 adhered to the outer periphery of these discs 11 fall off and settle in the lower part of the solid separation cylinder 2 and are discharged from the discharge pipe 8. To be done.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a fluid treatment apparatus of the present invention will be described below with reference to the drawings shown as embodiments. FIG. 1 is a partially cutaway perspective view of a fluid treatment device of the present invention, in which a cylindrical two-stage filter cylinder 1 is provided with flange portions 1
By bolting with a and 1a, it is detachably connected in the vertical direction, and the solid separation cylinder 2 having a conical cylindrical lower part is attached to the lower filtration cylinder 1 by the flange portions 1a and 2a. By bolting,
It is configured to be detachably connected. Then, each filter cylinder 1 is provided with a filter filter 3 which can be connected to each other inside, and the head 1b of the upper filter cylinder 1 is connected with an outflow pipe 4 of the processing fluid passing through the filter filter 3. In addition, the return pipe 5 for the processing fluid that has not passed through the filtration filter 3 is also connected to the head portion 1b. further,
The solid separation cylinder 2 is connected to a processing fluid inflow pipe 6 at an upper portion thereof, a baffle plate 7 is arranged therein, and a sediment discharge pipe 8 is disposed at a lower portion thereof via a sediment storage chamber 20. It is connected. The inflow pipe 6 is connected to the cylindrical portion of the solid separation cylinder 2 while being inclined in the tangential direction. Further, the outflow pipe 4 and the return pipe 5 can be connected to the lower part of the filter cylinder 1 as required, and further, the inner periphery of the filter cylinder 1 below the outflow pipe 4 and the return pipe 5 is also required. A baffle (not shown) may be provided according to the requirements. In this embodiment, the filter cylinder 1 has two stages, but it may have two or more stages, if necessary. In this case,
The solid separation cylinder 2 may be connected to the lowermost filtration cylinder 1, and the outflow pipe 4 and the return pipe 5 may be connected to the head 1b of the uppermost filtration cylinder 1.

The filtration filter 3 has a so-called cross flow type in which the filter surface is perpendicular to the flow direction of the processing fluid, or a so-called candle type in which the filter surface is parallel to the flow direction of the processing fluid, or a cross flow type. It can be a composite format of a format and a candle format, but may be of various other formats. In the case of the cross-flow type, as shown in FIGS. 1 and 2, a large number of horizontal pipes 10 are radially connected around a vertical pipe 9 arranged at the center of each filter cylinder 1. As shown in FIG. 3, a large number of holes 10a are provided in these horizontal tubes 10, and as shown in FIG. 4, a large number of donut-shaped disks 11 are stacked and fitted into the outer periphery thereof. There is. If necessary, the filter aid 1 may be applied to the outer periphery of the disk 11 when the treatment fluid is highly contaminated.
2 is attached so that it can be backwashed and washed. Also,
In the case of this cross-flow type, since the filtration filter 3 is perpendicular to the flow direction of the treatment fluid, contaminants adhering to the filtration filter 3 have an action of being washed by the flow of the treatment fluid, and thus the backwashing cleaning is performed. The need is reduced. The large number of disks 11 can be removed from the horizontal pipe 10 and washed as needed.

The material of the disk 11 may be ceramics, synthetic resin, metal, glass or the like.
Further, in order to provide a slight gap between the stacked discs 11, the surface of each disc 11 is provided with radial grooves 11a as shown in FIG. 5, or as shown in FIG. A large number of small protrusions 11b are provided. The filter aid 12 can be selected according to the type of treatment fluid, and can be, for example, diatomaceous earth, activated carbon, ion exchange resin, pulp, sawdust, bark carbon, volcanic ash, or the like.

In the fluid treatment apparatus of the present invention constructed as described above, the treatment fluid is purified as follows. First, when the treatment fluid is water, the treated water flows into the solid separation cylinder 2 through the inflow pipe 6, and the solid matter in the treated water precipitates in the lower part of the solid separation cylinder 2. In this case, since the inflow pipe 6 is connected to the cylindrical portion of the solid separation cylinder 2 in a tangential direction, the treated water flows spirally from the upper part to the lower part in the solid separation cylinder 2, and centrifugal force acts, Solids in the treated water are more likely to settle. The deposit is temporarily stored in the storage chamber 20 and then discharged from the discharge pipe 8 without being blocked by the baffle plate 7 and rising in the solid separation cylinder 2.

On the other hand, the treated water after the solid matter is precipitated and removed in the solid separation cylinder 2 overflows from the solid separation cylinder 2 and flows into the upper filtration cylinder 1 through the lower filtration cylinder 1. Then, this treated water comes into contact with the filtration filters 3 arranged in the respective filtration cylinders 1. As shown in FIG. 7, a part of the treated water that has come into contact with the filtration filter 3 is filtered through the filter aid 12 forming the filtration filter 3, the gap between the stacked disks 11, and the hole 10a of the horizontal pipe 10. Pass through the horizontal tube 10
After passing through the vertical pipe 9 and being filtered, it flows out from the outflow pipe 4. Further, the treated water that has not passed through the filtration filter 3 overflows from the upper filtration cylinder 1 and is returned from the return pipe 5, and again flows from the inflow pipe 6 into the solid separation cylinder 2 for retreatment.

The dirty filtration filter 3 stops the inflow of the treated water from the inflow pipe 6 and causes the compressed air or high-pressure water to flow backward from the outflow pipe 4, whereby the disk 11 is discharged.
The filter aid 12 adhering to the outer periphery of is removed, the filter aid 12 is precipitated in the lower part of the solid separation cylinder 2, once stored in the storage chamber 20, and then discharged from the discharge pipe 8.
Then, before the treated water flows in, the water mixed with the new filter aid 12 is made to flow into the upper filter cylinder 1 from the inflow pipe 6, and the filter aid 12 is attached to the outer periphery of the disk 11, Can be played.

When the filtration filter 3 is used for a long period of time, the disk 11 may become dirty or damaged, so it can be removed from the horizontal pipe 10 for cleaning or a new one can be replaced. In this case, since the respective filtration cylinders 1 are detachably connected, it is possible to remove them at each stage, and the cleaning and replacement of the disk 11 of the filtration filter 3 and other maintenance can be easily performed. You can

[0016]

EFFECTS OF THE INVENTION Since the fluid treatment apparatus of the present invention is constructed as described above, it is possible to save the installation area by installing the apparatus main body as a vertically long type above the ground or deeply underground. As a result, it is easy to secure the installation location. Further, since it is possible to easily regenerate a dirty filtration filter without having to replace it frequently, it is possible to save the trouble of replacing it and to process a large volume of processing fluid with high accuracy and efficiency. It was

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a fluid treatment device of the present invention.

FIG. 2 is an exploded perspective view showing an embodiment of the fluid treatment device of the present invention.

FIG. 3 is a partially enlarged view showing a horizontal pipe of a filtration filter of the fluid treatment device of the present invention.

FIG. 4 is a partially enlarged view showing a state before the filter aid is attached to the outer periphery of the disk of the filtration filter of the fluid treatment apparatus of the present invention.

FIG. 5 is a perspective view showing one embodiment of a disk used for a filtration filter of the fluid treatment device of the present invention.

FIG. 6 is a perspective view showing another embodiment of a disc used in the filtration filter of the fluid treatment apparatus of the present invention.

FIG. 7 is an explanatory diagram showing a state in which treated water passes through a filtration filter in the fluid treatment device of the present invention.

[Explanation of symbols]

 1 Filtration Tube 2 Solid Separation Tube 3 Filtration Filter 4 Outflow Pipe 5 Return Pipe 6 Inflow Pipe 7 Baffle Plate 8 Discharge Pipe 11 Disk 12 Filter Aid

Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display location B01D 35/30 6953-4D 37/02 F 6953-4D E 6953-4D 46/40 7059-4D

Claims (3)

[Claims] 1. A structure in which a plurality of stages of filtration cylinders 1 are vertically connected and a solid separation cylinder 2 is connected to the bottommost filtration cylinder 1, and each filtration cylinder 1 is internally connected to the other. A free-flowing filter 3 is provided, and an outlet pipe 4 for the processing fluid that has passed through the filtering filter 3 is connected to any one of the filtering cylinders 1, and a return pipe for the processing fluid that has not passed through the filtering filter 3 is provided. 5, the solid separation cylinder 2 is connected to a processing fluid inflow pipe 6 at an upper portion thereof, a baffle plate 7 is disposed inside thereof, and a sediment discharge pipe 8 is connected to a lower portion thereof. Fluid treatment equipment. 2. The fluid processing apparatus according to claim 1, wherein the filtration filter 3 is formed by laminating a large number of donut-shaped disks 11. 3. The filtration filter 3 is characterized in that a large number of donut-shaped discs 11 are laminated, and a filter aid 12 is attached to the outer periphery of these discs 11 so as to be backwashable and washable. The fluid treatment device according to claim 1.