JPH09248409A - Fluid filtering apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the treatment capacity of a fluid filtering apparatus by providing a plurality of rotary bodies having foreign matter separating opening parts provided to the outer surfaces thereof and having inner passages therein and providing a plurality of barrier members connected to a casing at the positions opposed to the rotary bodies to increase a fluid filtering treatment area. SOLUTION: A casing 2 equipped with a fluid guiding inlet part 2a and a fluid discharge outlet part 2b and the cylinder member 3 provided in the casing 2 and having an internal passage 3a and supported in a rotatable manner are provided. A plurality of rotary bodies 3 having base parts 4a connected to the cylindrical member 3 and foreign matter separating opening parts 4b provided so as to go toward the direction traversing the longitudinal direction of the cylindrical member 3 from the base parts 4a and not passing foreign matter in a fluid to the outer surface thereof and having the internal passages 4c communicating with the opening parts 4b are provided so as to be rotated along with the cylindrical member 3. Further, a plurality of the barrier members 5 positioned in opposed relation to the rotary bodies 4 and connected to the casing 2 and obstructing the fluid flow in the casing 2 are provided.

Description

Detailed Description of the Invention

The present invention relates to a fluid filtering device, and more particularly to a fluid filtering device having an improved filtering capacity.

[0002]

2. Description of the Related Art Conventionally, as a fluid filtering device for separating solids from a suspension, for example, a rotating cylinder (cylindrical body) is provided in a casing, and solids are separated on the outer surface of the cylinder. A plurality of openings are provided. Further, a passage communicating with the opening is provided inside the cylinder, the passage is connected to a fluid outlet pipe via a rotary joint (rotary joint), and a fluid obtained by separating solid matter by the fluid outlet pipe is externally connected. Leading to.

[0003]

However, in the above-described fluid filtering device, the flow of the fluid in the casing is smooth, and the opening portion provided on the outer surface of the fluid and the cylinder is accordingly increased. There has been a problem that the contact time with the fluid is short and the filtration processing ability of the fluid is not good.

Further, the solid matter in the suspension adheres to the openings to cause clogging, which lowers the processing capacity. If this is left for a certain period of time, filtration processing cannot be done at all due to clogging,
In such a case, there is a problem that the apparatus is temporarily stopped and the solid matter attached to the opening is artificially removed, which is inefficient.

An object of the present invention is to provide a fluid filtering device which solves the above drawbacks.

[0006]

In order to achieve the above object, a fluid filtering device of the present invention comprises a casing having an inlet portion for guiding a fluid and an outlet portion for discharging the fluid, and the inside of the casing. And a tubular body having a tubular body internal passage therein and rotatably supported, and a base portion connected to the tubular body,
A rotation which is provided so as to extend from the base in a direction transverse to the longitudinal direction of the cylindrical body and has an outer surface for separating foreign matter that does not allow foreign matter in the fluid to pass therethrough, and which internally communicates with the opening. A plurality of rotating bodies having a body internal passage and rotating together with the cylindrical body, and positioned so as to face the rotating bodies, connected to the casing, and obstructing the flow of fluid in the casing. A plurality of hindrance members and a fluid lead-out member for guiding the fluid in the tubular body internal passage to the outside of the tubular body through a rotary joint are provided.

Further, the fluid filtering device of the present invention has a casing having an inlet portion for guiding the fluid and an outlet portion for discharging the fluid, and a casing internal passage provided inside the casing. A rotatably supported cylindrical body, and a base portion connected to the cylindrical body, provided so as to extend in a direction transverse to the longitudinal direction of the cylindrical body from the base portion, and foreign matter in the fluid on the outer surface. Equipped with an opening for separating foreign matter that does not allow
A rotary body having a rotary body internal passage communicating with the opening therein and rotating with the tubular body, and a plurality of the rotary bodies are arranged in the longitudinal direction of the tubular body so as to face the rotary body. A plurality of blocking members that are located and connected to the casing and that block the flow of the fluid in the casing; and a fluid that guides the fluid in the tubular body internal passage to the outside of the tubular body through a rotary joint. And a lead-out member.

In addition, in the fluid filtering device according to the first or second aspect, the facing distance between the rotating body and the inhibiting member is configured to be enlarged in accordance with the rotating direction of the rotating body.

Also, in the fluid filtering device according to claim 1 or 2, the rotation of the rotating body and the rotation body on the fluid inlet side formed between the rotation body and the inhibition member facing each other and the inhibition body. The inlet side distance facing the member is the outlet side distance between the rotating body and the inhibiting member on the fluid outlet side formed between the rotating body and the inhibiting member by the rotation of the rotating body. It is configured to be smaller.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A fluid filtration device according to an embodiment of the present invention will be described with reference to the drawings.

The fluid filtering device of the present invention is used, for example, in a concentrator for concentrating a pulp suspension, a washer for cleaning a pulp suspension, and a separation of solid matter contained in waste water. It is what is done.

In FIGS. 1 to 4, reference numeral 1 denotes a fluid filtering device, and the fluid filtering device 1 is generally provided with a casing 2 having an inlet portion 2a for guiding a fluid and an outlet portion 2b for discharging the fluid. And a cylindrical body 3 provided inside the casing 2 and having a cylindrical body internal passage 3a therein and supported by a bearing 3b and the like so as to rotate.

(Note that 3c is a seal member, which is a bearing 3
Cylindrical body rotating means such as a motor for rotating the bearing and the cylindrical body 3 located on the side opposite to b are not shown. ) To this cylindrical body 3, the base 4a is connected by welding, bolts, etc.,
For example, a disk-shaped rotating body 4 is provided so as to extend from the base portion 4a in a direction (desirably, a right angle direction) transverse to the longitudinal direction of the cylindrical body 3.

The outer surface of the rotating body 4, for example, both end surfaces, is provided with an opening 4b for separating foreign matter which does not allow foreign matter in the fluid to pass through.

The opening 4b is, for example, 0.2 mm to 0.5 m.
It can be formed with a punching plate, a wire mesh, or the like having a hole of about m in size. The opening 4b
The size of is properly selected according to the size of the foreign matter to be separated.

Further, inside the rotating body 4, there is provided a rotating body internal passage 4c communicating with the opening 4b. It should be noted that, as shown in FIGS. 1 and 2, a plurality of rotating bodies 4 are arranged at predetermined intervals in the longitudinal direction of the tubular body 4.

Further, in the casing 2, the casing 2
An obstruction member 5 that obstructs the flow of the fluid inside is located so as to face the rotating body 4. The hindrance member 5 is connected to the casing 2 by, for example, welding or bolts.

It should be noted that, in particular, as shown in FIG. 4, the distance that the rotating body 4 and the inhibiting member 5 face each other is configured so as to increase in accordance with the rotation direction of the rotating body 4 (X in FIG. 4). However, it is preferable that at least the distance h between the opposing rotating bodies 4 and the blocking member 5 on the fluid inlet side E formed between the rotating body 4 and the blocking member 5 by the rotation of the rotating body 4 is opposed to each other. ₁ becomes smaller than the facing outlet side distance h ₂ between the rotating body 4 and the inhibiting member 5 on the fluid outlet side D formed between the rotating body 4 and the inhibiting member 5 facing each other by rotating the rotating body 4 ( It suffices if it is configured as h ₁ <h ₂ ).

That is, the fluid inlet side E is made smaller and the fluid outlet side D is made larger to reduce the pressure at the fluid outlet side D, so that the foreign matter adhering to the opening 4b of the rotating body 4 is peeled off. As a result, it is possible to automatically eliminate the clogging of the opening 4b of the rotating body 4.

Further, as shown in FIG. 1, the tubular body internal passage 3a is connected to a fluid outlet member 8 via a rotary joint 7. 7 a is a recess provided in the rotary joint 7. The rotary joint 7 and the cylindrical body 3 are sealed by a seal member (not shown).

Therefore, the motor (not shown) is rotated and the fluid to be filtered is introduced into the casing 2 from the inlet portion 2a by a pump (not shown) (note that the inlet portion 2a is provided by utilizing the natural head without providing a pump). A fluid to be filtered more may be introduced into the casing 2.).

The fluid introduced into the casing 2 moves toward the outlet 2b while the flow is blocked by the inhibiting member 5 (note that a pump (not shown) is provided on the outlet 2b side to provide the outlet 2b. May be guided to the outlet portion 2b by using a natural head without providing a pump.).

On the way to the outlet 2b, the foreign matter cannot pass through the opening 4b, and the fluid not containing the foreign matter, that is, the fluid from which the foreign matter is removed, has the opening 4b, the rotor internal passage 4c and the cylinder. The fluid is guided to the outside of the cylindrical body 3 through the body internal passage 3a, the recess 7a, and the fluid derivation member 8 (note that the fluid derivation member 8 is provided with a pump, not shown, on the fluid derivation member 8 side to remove foreign matters). 8 or may be guided to the fluid derivation member 8 by utilizing the natural head without providing a pump).

Although foreign matter tends to adhere to the opening 4b, as described above, since the fluid inlet side E is made smaller and the fluid outlet side D is made larger to reduce the pressure at the fluid outlet side D, rotation The foreign matter adhering to the opening 4b of the body 4 can be peeled off, and the clogging of the opening 4b of the rotating body 4 is automatically eliminated.

In the embodiment shown in FIGS. 1 to 4, the inhibiting member 5 is provided so as to face the axial center of the cylindrical body 3. However, the present invention is not limited to this, and for example, as shown in FIG. As shown in FIG. 5 to FIG. 7, one disc-shaped member 10 having an opening 10a at the center is provided between the rotating bodies 4 and the disc-shaped member 10 is welded, for example. It is also possible to connect the casing 2 with bolts or the like, and further provide the blocking members 5 on both sides of the one disk-shaped member 10 so as to face the rotating body 4.

Further, as shown in FIGS. 8 to 10, the openings 10'a and 10''a are formed at the centers between the rotating bodies 4 and 4.
The two disc-shaped members 10 'and 10''are provided, and the disc-shaped member 10' and the disc-shaped member 10 '' are connected to the casing 2 by, for example, welding or bolts. The blocking member 5 may be provided on the disk-shaped member 10 ′ and the disk-shaped member 10 ″ on the side facing the rotating body 4.

In the embodiment shown in FIGS. 5 to 10,
1 to 4 except that the disk-shaped members 10, 10 'and 10''having the openings 10a, 10'a and 10''a at the centers are provided.
Since it is the same as the embodiment described above, the description thereof will be omitted.

Further, in the embodiment of FIGS. 1 to 10,
The fluid in the tubular body internal passage 3a is guided to the outside of the tubular body 3 from the side of the tubular body internal passage 3a via the rotary joint 7, but as shown in FIG. The fluid in the passage 3a may be guided to the outside of the tubular body 3 through the rotary joint 7 from the axial direction of the tubular body internal passage 3a.
In FIG. 11, 7c is a seal member.

[0029]

The fluid filtering device of the present invention has a casing having an inlet portion for introducing the fluid and an outlet portion for discharging the fluid, and a casing internal passage provided inside the casing. A rotatably supported cylindrical body, and a base portion connected to the cylindrical body, provided so as to extend in a direction transverse to the longitudinal direction of the cylindrical body from the base portion, and foreign matter in the fluid on the outer surface. A plurality of rotating bodies having an opening for separating foreign matter that does not pass through, and having an internal passage of the rotating body which communicates with the opening and rotating together with the cylindrical body, and a position facing the rotating body. A plurality of inhibiting members that are connected to the casing and that inhibit the flow of the fluid in the casing, and fluid derivation that guides the fluid in the tubular body internal passage to the outside of the tubular body through a rotary joint. Foreign matter separation that does not allow foreign matter in the fluid to pass through because it has a member A plurality of rotating bodies provided with opening portions are provided so as to extend in a direction transverse to the longitudinal direction of the tubular body, and moreover, a plurality of fluid filtration processing areas are increased to improve the processing capacity of the fluid filtration device. be able to.

Further, by providing the inhibiting member for inhibiting the flow of the fluid, the flow of the fluid can be slowed and the contact time between the fluid and the rotating body can be lengthened to improve the throughput of the fluid filtering device. it can.

Further, the fluid filtering device of the present invention has a casing having an inlet portion for introducing a fluid and an outlet portion for discharging the fluid, and a casing internal passage provided inside the casing. A rotatably supported cylindrical body, and a base portion connected to the cylindrical body, provided so as to extend in a direction transverse to the longitudinal direction of the cylindrical body from the base portion, and foreign matter in the fluid on the outer surface. Equipped with an opening for separating foreign matter that does not allow
A rotary body having a rotary body internal passage communicating with the opening therein and rotating with the tubular body, and a plurality of the rotary bodies are arranged in the longitudinal direction of the tubular body so as to face the rotary body. A plurality of blocking members that are located and connected to the casing and that block the flow of the fluid in the casing; and a fluid that guides the fluid in the tubular body internal passage to the outside of the tubular body through a rotary joint. Since the lead-out member is provided, the rotating body having an opening for separating foreign matter that does not allow the foreign matter in the fluid to pass through is oriented in a direction transverse to the longitudinal direction of the cylindrical body, and further in the longitudinal direction of the cylindrical body. By arranging a plurality of them, the filtering area of the fluid can be increased, and the throughput of the fluid filtering device can be improved.

Further, by providing the inhibiting member for inhibiting the flow of the fluid, the flow of the fluid can be slowed and the contact time between the fluid and the rotating body can be lengthened to improve the throughput of the fluid filtering device. it can.

Further, the facing distance between the rotating body and the inhibiting member is enlarged in accordance with the rotating direction of the rotating body so that the fluid inlet side is small and the fluid outlet side is large and the fluid outlet side is large. The pressure is reduced to remove foreign matter attached to the opening of the rotating body.

As a result, it is possible to automatically eliminate the clogging of the opening of the rotary member to allow continuous operation and further improve the processing capacity of the fluid filtering device.

Further, by the rotation of the rotating body, the distance on the inlet side between the rotating body and the inhibiting member on the fluid inlet side, which is formed between the opposing surfaces of the rotating body and the inhibiting member, is changed by the rotation of the rotating body. Is configured so that it is smaller than the facing outlet-side distance between the rotating body and the inhibiting member on the fluid outlet side formed between the rotating body and the inhibiting member facing each other, and the fluid inlet side is The pressure on the outlet side of the fluid is reduced by increasing the outlet side of the fluid to be small and the foreign matter adhering to the opening of the rotating body is peeled off.

As a result, it is possible to automatically eliminate the clogging of the opening of the rotary member to allow continuous operation and further improve the throughput of the fluid filtering device.

[Brief description of drawings]

FIG. 1 is a schematic front sectional view of a fluid filtering device according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of a rotating body and a cylindrical body of FIG.

3 is a schematic cross-sectional view taken along the line AA of FIG.

4 is a schematic cross-sectional view taken along the line BB of FIG.

FIG. 5 is a schematic front cross-sectional view of a fluid filtering device of another embodiment different from the one embodiment of the present invention shown in FIG. 1.

6 is a schematic cross-sectional view taken along the line CC of FIG.

7 is a schematic cross-sectional view taken along the line DD of FIG.

FIG. 8 is a schematic front cross-sectional view of a fluid filtering device of another embodiment different from the embodiment of the present invention shown in FIG.

9 is a schematic cross-sectional view taken along the line EE of FIG.

10 is a schematic cross-sectional view taken along the line FF of FIG.

FIG. 11 is a schematic front cross-sectional view of a fluid filtering device of another embodiment different from the embodiment of the present invention shown in FIG. 8.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluid filtering device 2 Casing 3 Cylindrical body 4 Rotating body 5 Inhibiting member

Claims (4)

[Claims] 1. A casing having an inlet portion for introducing a fluid and an outlet portion for discharging the fluid, and a casing provided in the casing, having a cylindrical internal passage therein, and rotatably supported. A cylindrical body having a base connected to the cylindrical body and extending in a direction transverse to the longitudinal direction of the cylindrical body from the base, for separating foreign matter in the outer surface from which foreign matter in the fluid does not pass. A plurality of rotating bodies each having an opening and having a passage inside the rotating body communicating with the opening and rotating together with the cylindrical body; and a plurality of rotating bodies positioned so as to face the rotating bodies and connected to the casing. A plurality of blocking members for blocking the flow of the fluid in the casing, and a fluid guiding member for guiding the fluid in the tubular body internal passage to the outside of the tubular body through a rotary joint. And a fluid filtering device. 2. A casing provided with an inlet portion for introducing a fluid and an outlet portion for discharging the fluid, and a casing provided in the casing, having a cylindrical internal passage therein, and being rotatably supported. A cylindrical body having a base connected to the cylindrical body and extending in a direction transverse to the longitudinal direction of the cylindrical body from the base, for separating foreign matter in the outer surface from which foreign matter in the fluid does not pass. A rotating body having an opening and having a rotor internal passage communicating with the opening therein and rotating together with the tubular body, and a plurality of the rotating bodies arranged in a longitudinal direction of the tubular body. A plurality of inhibiting members that are positioned so as to face each other and that are connected to the casing and that inhibit the flow of fluid in the casing; and the fluid in the tubular body internal passage through the rotary joint. And a fluid guiding member for guiding the fluid to the outside of the filter. Apparatus. 3. The fluid filtering device according to claim 1 or 2, wherein a facing distance between the rotating body and the inhibiting member is configured to increase in accordance with a rotation direction of the rotating body. 4. The rotation of the rotator is defined by the rotation of the rotator, and the distance between the rotator and the inhibition member on the inlet side of the fluid, which is formed between the rotators and the inhibition member facing each other. According to the present invention, it is configured to be smaller than the distance between the outlets on the fluid outlet side between the rotor and the inhibiting member, which are formed between the rotor and the inhibiting member facing each other. The fluid filtering device according to claim 1 or 2.