JPS60812A - Rotary thin plate type filtration apparatus - Google Patents

Abstract

PURPOSE:To remove the clogging with a simple method, and to use continuously the apparatus by providing a pressing device for exerting pressing force to a thin disk at the end part of a filtration member. CONSTITUTION:The waste water contg. activated sludge and solids such as iron powder flows in from an inflow port 2. The iron powder, etc. in the waste water is attracted to the surfaces of disks 5 and 5, since a magnetic flux passes through the clearance part between the disks 5 and 5 and spacers 6 and 6 due to the magnetization by a permanent magnet. And other solids in the waste water are left mostly on the circumferential surfaces of the disks 5 and 5. In addition, since the disks 5 and 5 are pressed by rollers 11 and 11, fine solids clogging the clearance between the disks 5 and 5 are squeezed out over the circumferential surfaces of the disks 5 and 5 along with the revolution of the disks 5 and 5, and removed. Said iron powder and solids are carried to the location of a scraper 8 and discharged into a solids discharging part 10. In this way, the apparatus can be used continuously.

Description

Detailed Description of the Invention The present invention is for removing or separating solids from a wide variety of wastewaters containing solids, including activated sludge, sludge, and other solid-containing wastewaters, and from various stock solutions. The present invention relates to a filter device.

Many proposals have been made as devices for removing or separating solids from various types of wastewater and raw solutions.

One of these is a filter device that uses a filtration member consisting of many thin plates and many spacers stacked one on top of the other, but with these conventional configurations, fine solids inevitably clog the purified liquid filtration area between the thin disks. However, there was a problem in that the filtration efficiency deteriorated and continuous use was difficult.

The present invention has been made in view of the above, and its object is to provide an improved thin plate rotary filter device which removes clogging in a simple manner and allows continuous use. There is a particular thing.

The gist of this is that it is a thin-plate rotary filter, in which a large number of thin disk-shaped filter plates and spacers with small outer diameters are stacked alternately, and a shaft passing through the center of the filter plate is used. A large number of filtration members are arranged in parallel so that the thin discs of adjacent filtration members circumscribe each other to form a filtration member row, and are placed in a housing having a raw solution inlet and a solid matter outlet. In a filter device comprising a driving device that rotates the plurality of filtration members in a fixed direction,
A squeezing device consisting of a roller that applies a pressing force to the thin disc at the end of the filter member or a pressed plate attached to the piston rond of the cylinder is provided, and this presses the thin disc in the direction of the rotational axis. The purpose is to squeeze and squeeze out the clogged solid matter.

Hereinafter, the details of the present invention will be specifically explained with reference to the drawings.

FIG. 1 is a partially cutaway sectional view showing one embodiment of a filter device according to the present invention, FIG. 2 is a 3rd view of cross section AA in FIG. 1, and FIG. 3 is a sectional view showing another embodiment. It is.

In Figure 1, 1 is the housing, 2 is the inlet for the liquid to be treated such as wastewater,
3.3 all have a rotating shaft 4.4 and a large number of thin discs 5.5
and a filtration member consisting of a spacer 6.6, etc., 7 is a leak prevention member, 8 is a scraping member, 9 is an outlet for the processed liquid from which solids have been separated, 10 is a solids discharge part, 11.11 is a roller, 12.12 is the roller shaft, I3.13 is the roller shaft 12
．． Plummer block supporting 12, 14.14 and 1
5.15 is a mounting screw and nut for the brammer block 13.13, 16.16 is a bracket, and 17.17 is a mounting screw for the bracket 16.16.

Also, in Figure 2, 18.1 is a bearing that supports the rotating shaft 4.4, 19.19 is a sleeve, 20.20 is a nut,
21 is a cambling ring, 22 is a guard motor, and 23 is a permanent magnet.

The casing 1 is made of a non-magnetic material, and a part thereof has a liquid inlet 2 for receiving various liquids to be processed. Below the inlet 2, a leakage prevention member 7 also made of a non-magnetic material is attached to the housing 1, and is attached to the circumference of a large diameter disc 5 attached to the rotating shaft 4. are in contact with each other.

A scraping part screw 48 made of a non-magnetic material is attached to a part of the casing on the side opposite to the side where the inflow port 2 is provided, and a large diameter screw 48 made of a non-magnetic material is attached. It is in contact with the circumference of the disk 5.

On the side of the housing 1 where the scraping member 8 is attached,
A solid matter discharge section 10 is provided in contact with the housing to remove solid matter separated from various liquids to be treated.

The filter member 3.3 has a plurality of discs 5.5 and spacers 6.6 arranged alternately on a rotating shaft 4.4. It is inserted into the housing 1 as far as it can be accommodated, and is fixedly tightened with nasoles 1-20 and 20 via sleeves 19 and 19.

Therefore, in this filtering member 3.3, the outer circumferences of the large-diameter disks 5.5 are completely coincident with each other in the thickness direction, or the outer circumferences of the large-diameter disks 5.5 of each of the two large-diameter disks 5 of the other filtering members 3 are the same. A large number of filters are arranged in parallel so as to circumscribe each other and form a filter wall that partitions between the raw solution inlet 2 and purified solution outlet 9 within the housing 1, and are rotatable by bearings (not shown). It is supported and slowly rotated up by the geared motor 22.

The large-diameter disk and small-diameter spacer are made of a corrosion-resistant magnetic alloy such as stainless steel or synthetic resin mixed with magnetic powder, and the thickness of the disk is approximately 0.05 to Q, around 5 mm.
．． The distance of one pacer is approximately 0.005 to 0.01 m.

The disks attached to each rotating shaft 4.4 are attached so that the disks attached to adjacent rotating shafts are circumscribed one-on-one or with a crab, so there is a gap equal to the thickness of the spacer. is formed between the discs.

A hard rubber roller 2.12 is arranged so as to be in pressure contact with the disc 5.5 at both ends of each filter member 3.3, and the roller shaft 12.12 is supported by a plummer handle 13.13. Also, plumber block 13.13 is attached to bracket 16.16.
When installing the roller shaft 12, determine the position of the roller shaft 12,
It is fixed by screws 14.14 and nuts 15.15, so that the thin disks are pressed in the direction of the rotation axis, so that the gap between the disks is smaller than in other parts.

Both ends of each rotating shaft 4.4 protrude outside the housing, and one end of each rotating shaft is connected to a C geared motor 22.22 via a coupling 21.21, so that the rotation of the geared motor synchronously or asynchronously, the circumferential contact surface of the disk moves at an appropriate relative speed, e.g.
It rotates slowly so as to slide at a speed of about 1Il/ll1in to several tens of mn/min or less, and the discs 5.5 at both ends engage in the rotation of this filter member 3.3. The roller 2.12 that is in pressure contact with the roller also rotates accordingly.

Each rotating shaft 4.4 and disk 5.5 (, i each have a magnetic material,
Preferably L7< is made of ferromagnetic material, and permanent magnets 23 and 23 are installed at the other end of each rotating shaft so that adjacent rotating shafts have opposite polarities (one magnet is installed at the other end of each rotating shaft). ζ, so that the disks of each rotating shaft can be easily magnetized.

Thus, wastewater containing activated sludge, iron powder, and other solids flows in through the inlet 2, and flows into the upper surface of the disks that are attached to each rotating shaft in the housing 1 and circumscribe each other. but,
Discs 5.5 attached alternately to each rotating shaft 4.4
Since the magnetic flux magnetized by the permanent magnets 23 and 23 passes through the gap between the spacer and the spacer 6.6, iron powder and the like contained in the waste water are attracted to the surface of each disk. In addition, solid waste contained in other wastewater is disk 5.
．． It cannot pass through the gap between 5 and 5, and is mainly left behind on the surface of circle 3'F6 of the disk.

The wastewater from which iron powder and solid waste have been removed flows down through the gaps between the discs and is discharged from the outlet 9. The part of the filtering member 3.3 that faces the disc 5.51 and the roller 11.11 is pressed by the roller 11.11, and the gap is narrower than other parts, so that the disc 5.51 is compressed, so that the disc 5.51 is pressed by the roller 11.11. The fine solid content that causes clogging is 5.5 discs.
As the disk rotates, it is squeezed out onto the circumferential surface of the disk 5.50 mm, and a removal force of 1 mm is applied.

It is something that

The magnetic powder and the same-shaped discharged matter attracted to the circumferential upper end edge surface of each disc 5.5 are attached to adjacent rotating shafts as each disc closely rotates in the same direction. Disc 5.
50 circles are inherited and moved 1. It is carried to the scraping member 8.

Therefore, the scraping member 8 is made of a non-magnetic material and is fixed to the housing 1 so as to be in contact with the circumference of the disk 5 which is attached to the rotating shaft 4. , the iron powder and solid waste are removed from the circumference of the disk 5 and are discharged from the solid waste discharge section 10.\\.

The separation and transport of the solids can be further promoted by using appropriate means to stop the intermittent magnetization.

FIG. 3 shows another embodiment.

In Fig. 3, 24 is a cylinder, 25 is a piston rod, 2
6 is a holding plate, and 27 is a hydraulic unit.

Thus, the piston rod 2 of 24.
A pressing plate 26 attached to the tip of the holder 5 applies appropriate pressure via a hydraulic unit 27.

Since the present invention is constructed as described above, it is possible to eliminate clogging of the side gaps between the discs due to fine solid content, resulting in a good lightning filtration rate and continuous use. It is possible to provide a filter device of various types.

Note that the configuration of the device of the present invention is not limited to the above-mentioned embodiments. That is, for example, in this embodiment, the -
・As an example, a plummer block was used to install the roller to align and fix it, but a pressure opening screw was also used on the plummer block.

It is also possible to use a configuration in which the °ζ roller is strongly pressed and fixed, or a spring or the like is used to press the °ζ roller against the disc. Also the driving method,
The magnetization device etc. can be freely used within the scope of the purpose of the present invention.
+The present invention encompasses all of them.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway sectional view showing one embodiment of the filter device according to the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a sectional view showing another embodiment. It is. 1--・-------------------- Housing 2---------------- One cover Processing liquid inlet 3-------------------
・−・−・−Filtering member 4・−1−−・−−−11−−
−−−−−−−−−−Rotating shaft 5−−−−−−−−・−1−−−−−−−−−−−・Disk 6−−−−−−−−−−
−−−−−・−−−1−・−Spacer”1−−・−−−
-----------------Leak prevention member 8
−−−−−−−−−−−−−−−−−−−−−−−−
... Outlet 10---1・-1------
--------------Solid discharge section 11---------
−−−−・・−・−・−Roller 12−−111・−・
----------------Roller (Yu 13-1--
'--------・-1-----Grandumab u7ri1
4.17-・----1--・--111・Screw 15.2
0-...-----1------ Nut 16--
---1・--・--1--------Bracket 18--
Bearing 19−・・−１−−−−−−・−−−−−
---X Reeve 21-----
-----One cut ring 22-・-11------
−−−−−−・−・−Gardmork 23−・・−−−
−1−−−−−−−・−−1−・−Permanent magnet 24−−−
−−−−−−−−−−−−−−−−−−−−Cylinder 2
5---1----------Piston rod 26------------1...--Press plate 2't-- −−−−−−−−−−−−1 Hydraulic unit patent applicant Inoue Japan Co., Ltd. Representative for Research Institute (7524) Shotabe Mogami

Claims (3)

[Claims] (1) A housing having a raw solution inlet, a purified solution outlet, and a solid matter discharge part, and a number of thin disks attached to a rotating shaft via spacers with a smaller diameter than the disks, each adjacent to each other. A large number of the large-diameter disks attached to the rotating shaft are arranged in parallel so that the outer circumferences of the disks circumscribe each other and form a filter wall that partitions between the raw liquid inlet and the purified liquid outlet within the housing. a plurality of movably supported filter members, and a plurality of tl#s described above;
, in a thin plate rotary filter device comprising a drive device for rotating filter members in a fixed direction, a compression device capable of applying a pressing force to the side surfaces of the end discs of the plurality of filter members is provided. The thin plate rotary filter device described above. (2) The thin plate rotary filter device according to claim 1, wherein the squeezing device is rotatably supported and comprises a roller pressed against the side surface of the disc. (3) The thin plate rotary filter device according to claim 1, wherein the squeezing device comprises a pressing plate attached to a piston rod of a cylinder that is pressed against the side surface of the disk.