KR20210106649A - Cloth media disc filtration apparatus - Google Patents

Abstract

The present invention relates to a fiber disc filter. When two backwash suction devices for backwashing two adjacent fiber disc filter surfaces are installed, two backwash boxes are installed with a height difference to minimize interference with each other. Accordingly, the size of the fiber disc filter can be minimized when fabricating a fiber disc filter having the same treatment capacity by reducing the gap between two adjacent fiber disc filters. In particular, by manufacturing the backwashing box used when backwashing two adjacent fiber disc filter surfaces as one unit or by mounting the same alternately on both sides around the fiber disc filter, there is no interference between the two backwash suction devices. Thus the distance between two adjacent fiber disc filters can be reduced accordingly, so it is possible to provide a fiber disc filter in reduced size.

Description

Fiber Disc Filter {CLOTH MEDIA DISC FILTRATION APPARATUS}

The present invention relates to a fiber disk filter, and more particularly, two backwash suction devices for backwashing two adjacent fiber disk filter surfaces are installed to have different heights from each other, or two adjacent backwash boxes are integrated into one another. By constructing or arranging two backwash suction devices that backwash both sides of one fiber disk filter so that they are staggered on both sides around the shaft, the space occupied by two adjacent backwash suction devices, that is, the two adjacent backwash suction devices It is possible to increase the filtration capacity by maximizing the filtration area at the same size of the fiber disk filter by minimizing the gap between the two fiber disk filters, and to downsize the overall size of the fiber disk filter in the case of having the same filtration capacity.

The fiber disk filter 100 is filtered by installing several fiber disk filters 300 integrally on the shaft 200 rotatably mounted in the filtration tank 100, as shown in [Fig. 1] to [Fig. 3]. In this case, each fiber disk filter 300 is equipped with a backwash suction device 400 ′ to remove foreign substances adhering to the surface of the fiber disk filter 300 . And the sewage and wastewater supplied to the filtration tank 100 permeates from the outside to the inside of the fiber disk filter 300 to perform a filtration action, and the filtered filtrate water flows out of the filtration tank 100 through the hollow shaft 200 drain

In addition, the backwash suction device 400 ′ is mounted in the filtration tank 100 to backwash each fiber disk filter 300 surface as shown in FIGS. 1 to 3 . Such a backwash suction device 400' is manufactured in various structures as shown in the following (Patent Document 1) to (Patent Document 3) in order to increase the backwashing effect.

(Patent Document 1) Korean Patent No. 10-1751212

It relates to a filtration device having a multi-stage washing function of a disk-type fiber filter, and in particular, in a filtration device having a multi-stage washing function of a known disk-type fiber filter, a cam for generating rotational force of the spray washing machine is provided on the shaft of the reduction gear connected to the drive motor The cam lever shaft is installed so as to be rotatable within a predetermined angle range from the front part of the filtration tank, and between the inner outer surface of the cam lever shaft and the outer surface of the spray cleaner rotational force generating cam. A first cam lever that rotates repeatedly within a predetermined angle in response to the rotation of the cam lever and rotates the cam lever shaft is inclined at a predetermined angle, and a second cam lever is operated in a direction perpendicular to the outer bottom surface of the cam lever shaft. A bracket is installed, and the wash water supply pipe is rotatably installed within a predetermined angle range in the horizontal direction from the upper part of the cam lever shaft in the filtration tank, and the cam lever shaft is perpendicular to the outer bottom surface of the wash water supply pipe. When the jet washing machine rotates repeatedly within a predetermined angular range in response to the rotation of the rotational force generating cam and the first cam lever, the washing water supply pipe rotates in response to the rotation of the second cam lever operation bracket, and the jet washing machine swings It is characterized in that a second cam lever is installed. Therefore, it is possible to prevent the formation of troughs on the surface of the fiber filter media due to the difference in pressure and the injection amount of the washing water sprayed through the injection nozzles, and the pitting phenomenon that occurs where the jet pressure of the washing water is high and the villi of the fiber filter media As it can prevent damage and extend the service life of the fiber filter media, labor and material costs can be significantly reduced due to maintenance. Not only can the cleaning efficiency be greatly increased because it can be sprayed, but also the reliability according to the filtration function can be greatly improved by continuously guaranteeing the marketability of the filtration device itself and a stable throughput.

(Patent Document 2) Korean Patent No. 10-1829378

It relates to a fiber disk filter type filtration device having an equal suction cleaning function of filter foreign substances. In particular, in a known fiber disk filter type filtering device, a predetermined height and a predetermined length in the vertical direction from the front part of the ceiling surface of the suction holder upper plate of the suction cleaning device are provided. and install a water flow blocking plate that performs a dispersing function for the suction power of the suction cleaning pump, so that foreign substances and water sucked through the suction slit of the suction bar due to the operation of the suction cleaning pump collide with the front surface of the water flow blocking board It is characterized in that it flows into the suction pipe side through a gap formed between the lower end of the water flow blocking plate and the lower plate of the suction holder. Therefore, when water containing various foreign substances is sucked through the suction slit formed on the suction bar installed in the suction holder opening of the suction cleaning device by the strong suction force of the suction cleaning pump, the entire length of the suction slit is to be suctioned evenly (equal suction). Thus, not only can the cleaning efficiency of the entire fiber disk filter be greatly improved, but it can also prevent damage to the filter (hair loss, etc.) It is possible to significantly extend the lifespan of the fiber filter cloth, and it is possible to significantly reduce the maintenance cost of the filtering device itself having the fiber disk filter.

(Patent Document 3) Korean Patent No. 10-1876409

It relates to a fiber disk filter having a filter fabric damage prevention structure, and its purpose is to provide a filter fabric damage prevention structure that can prevent the filter fabric from being torn or separated from the filter frame during the washing process of sucking and removing foreign substances attached to the filter fabric. To provide a fiber disk filter having. The configuration for this is in the fiber disk filter including a rotating drum and a plurality of filter segments installed on the outer circumferential surface of the rotating drum, wherein each filter segment is fixedly assembled to the rotating drum, and has a front surface facing each other and a segment frame having a rear surface open to allow the flow of fluid, and an outlet for discharging the fluid flowing in through the front and rear surfaces to the rotating drum; a filter frame assembled to the open front and rear surfaces of the segment frame; a filter cloth installed on the filter frame to have a structure surrounding the front surface of the filter frame; and a rod-shaped stopper installed on the filter fabric to bind the filter fabric to the filter frame or segment frame while distributing the load applied to the filter fabric during the cleaning operation of the filter segment. to provide.

On the other hand, the backwash suction device 400' capable of backwashing two surfaces of the fiber disk filter 300 facing each other at once is, as shown in Figs. The two fibers are installed to face each other so that they are spaced apart by a distance (W) so that the surfaces of the two fiber disk filters 300 facing each other can be backwashed at the same time. At this time, a spring 410 is provided between the two backwash suction devices 400', so that these two backwash suction devices 400' open outward while receiving elastic support and at the same time adjacent two fiber disk filters ( 300) It is attached to the surface so that it can be backwashed.

However, as the two fiber disk filters are mounted to be elastically supported using the spring, the following problems occur.

(1) The filtration capacity of the fiber disc filter is determined according to the number of fiber disc filters mounted on the shaft manufactured with a limited length.

(2) Accordingly, more fiber disk filters should be mounted on the shaft of a limited length, but the existing backwash suction device has a limited length because the mounting space of the backwash suction device, that is, the space between two adjacent fiber disk filters is wide. There is a limit to the number of fiber disk filters that can be mounted on the shaft of the machine.

(3) This is because, considering the desired wastewater or wastewater treatment capacity, the distance between two adjacent fiber disk filters is widened, so there is a limit to the number of fiber disk filters that can be installed. The whole of the disk filter must be enlarged and oversized.

(4) In addition, as the manufacturing cost of the existing fiber disk filter increases, in particular, as the size of the fiber disk filter increases, great difficulties may arise in facility and maintenance.

(5) On the other hand, as the distance between the two adjacent fiber disk filters is widened, there is a limit to the number of fiber disk filters that can be mounted on a shaft of a limited length, and there is a limit to increasing the filtration efficiency.

(6) That is, as the number of fiber disk filters that can be mounted on a shaft of a limited length is reduced, the filtration area that can be filtered is also reduced, so the filtration efficiency is also reduced.

Korean Patent Registration No. 10-1751212 (Registration Date: 2017.06.21) Korean Patent No. 10-1829378 (Registration Date: 2018.02.08) Korean Patent Registration No. 10-1876409 (Registration Date: 2018.07.03)

The present invention takes this into consideration, and when two backwash suction devices for backwashing two adjacent fiber disk filter surfaces are installed, the two backwash boxes are installed with a height difference to minimize interference with each other. An object of the present invention is to provide a fiber disc filter capable of reducing the size of the fiber disc filter having the same treatment capacity by reducing the distance between two adjacent fiber disc filters.

In particular, the present invention integrally manufactures a backwashing box used for backwashing two adjacent fiber disk filter surfaces, thereby preventing any interference between these two backwash suction devices, thereby preventing two adjacent fibers. Another object of the present invention is to provide a fiber disk filter capable of reducing the distance between the disk filters, thereby further reducing the overall size.

In addition, the present invention is configured to backwash each fiber disk filter by mounting a backwash suction device to the filtration tank so as to be staggered on both sides of each fiber disk filter with respect to the shaft, so that between two adjacent fiber disk filters Another object of the present invention is to provide a fiber disk filter capable of further reducing the distance between the filters and making it possible to further miniaturize a fiber disk filter manufactured with the same capacity.

The fiber disk filter according to [Example 1] of the present invention for achieving this object, the filter tank 100 for filtering receiving sewage or wastewater; Shaft 200 for discharging the filtered water filtered while rotating in place in the filtration tank 100 to the outside of the filtration tank 100; A plurality of fiber disk filters 300 installed at a predetermined interval (W) on the shaft 200 to drain the filtered water through the shaft 200 by sucking the sewage or wastewater from the outside into the inside; and a plurality of backwash suction devices 400 mounted in the filtration tank 100 to backwash the surface of each fiber disk filter 300; the backwash suction device 400 comprises: a fixing bracket 410 for fixing to the filtration tank 100; a first support bar (420') having one side fixed to the fixing bracket (410) and the other side mounted to protrude between the surfaces of two adjacent fiber disk filters (300); A second support bar (420") mounted to face the fiber disk filter 300 surface with one side fixed to the fixing bracket 410 and the other side mounted on both outer sides of the shaft 200; each consisting of at least one Two first load bars 430' that are supported by a spring 431 on the first support bar 420' and rotate in opposite directions toward the surface of the fiber disk filter 300 facing each other; The second load bar 430" is mounted to the side of the fiber disk filter 300 by receiving the support of the spring 431 on the 2 support bar 420"; a backwash box 440 mounted on the first load bar 430' and the second load bar 430"; and a backwash suction plate 450 that is mounted on each backwash box 440 to backwash the fiber disk filter 300 surface. to reduce the interference between the backwash boxes 440 mounted on each first load bar 430' by different characterized in that

In particular, the backwash suction plate 450 is characterized in that it is mounted to coincide with or close to a radius connecting the edges at the rotation center of the fiber disk filter 300 .

The fiber disk filter according to [Example 2] of the present invention includes: a filtration tank 100 for filtering receiving sewage or wastewater; Shaft 200 for discharging the filtered water filtered while rotating in place in the filtration tank 100 to the outside of the filtration tank 100; A plurality of fiber disk filters 300 installed at a predetermined interval (W) on the shaft 200 to drain the filtered water through the shaft 200 by sucking the sewage or wastewater from the outside into the inside; and a plurality of backwash suction devices 400 mounted in the filtration tank 100 to backwash the surface of each fiber disk filter 300; the backwash suction device 400 comprises: a fixing bracket 410 for fixing to the filtration tank 100; a support bar 420 having one end fixed to the fixing bracket 410 and the other end mounted to protrude to face the fiber disk filter 300 surface; a load bar 430 rotatably mounted to the support bar 420 by receiving a spring 431 support toward the fiber disk filter 300 surface; a backwash box 440 mounted on the load bar 430; and a backwash suction plate 450 that is mounted on each backwash box 440 to backwash the fiber disk filter 300 side. The two backwash suction devices 400 to be determined are mounted to be staggered on both sides of each fiber disk filter 300 with respect to the shaft 200, and to be reversed at a narrower interval (W') than the interval (W). It is characterized in that it is configured to be able to install the washing suction device (400).

The fiber disk filter according to [Example 3] of the present invention includes: a filtration tank 100 for filtering receiving sewage or wastewater; Shaft 200 for discharging the filtered water filtered while rotating in place in the filtration tank 100 to the outside of the filtration tank 100; A plurality of fiber disk filters 300 installed at a predetermined interval (W) on the shaft 200 to drain the filtered water through the shaft 200 by sucking the sewage or wastewater from the outside into the inside; and a plurality of backwash suction devices 400 mounted in the filtration tank 100 to backwash the surface of each fiber disk filter 300; the backwash suction device 400 comprises: a fixing bracket 410 for fixing to the filtration tank 100; a first support bar (420') having one side fixed to the fixing bracket (410) and the other side mounted to protrude between the surfaces of two adjacent fiber disk filters (300); A second support bar (420") mounted to face the fiber disk filter 300 surface with one side fixed to the fixing bracket 410 and the other side mounted on both outer sides of the shaft 200; each consisting of at least one A first load bar 430' rotatably installed between two fiber disk filters 300 adjacent to the first support bar 420'; a spring 431 on the second support bar 420". ) supported by the second load bar 430", mounted to face the fiber disk filter 300; the first load bar ( Two first backwash boxes 440' mounted on 430'; second backwash boxes 440" mounted on the second load bar 430"; and the first and second backwash boxes 440' , 440") and backwashing suction plate 450 for backwashing the surface of the fiber disk filter 300. It is characterized in that the backwash suction device 400 can be installed at a narrower interval (W') than the interval (W) by eliminating the interference between the boxes (440').

Finally, the backwash suction plate 450 is characterized in that it is mounted on an imaginary diameter passing through the center of the fiber disk filter 300 .

The fiber disk filter according to the present invention has the following effects.

(1) By configuring the two adjacent backwash suction devices to have a height difference in the top and bottom so as to minimize overlap with each other, two backwash suction devices can be mounted, that is, two adjacent fiber disk filters. The gap between them can be reduced.

(2) Accordingly, the length of the shaft on which the same number of fiber disk filters are mounted can be reduced, so that the overall size of the fiber disk filter according to the present invention can be reduced even when the same number of fiber disk filters are mounted.

(3) Therefore, not only can the fiber disc filter be installed in a place where the space to install the fiber disc filter is small, but the fiber disc device is small in size and there is no change in the number of fiber disc filters installed, so that the treatment capacity of sewage or wastewater does not change. can be miniaturized.

(4) On the other hand, in this way, by minimizing the distance between the two backwash suction devices, that is, the gap between the two fiber disk filters, the number of fiber disk filters that can be installed on the shaft of a limited length can be increased. It allows to increase the filtration efficiency as the filtration area increases compared to the fiber disc filter.

(5) In addition, the backwash suction device is mounted one on each side of the shaft, but one backwash suction device is installed between two adjacent fiber disk filters by mounting them alternately on both sides based on the fiber disk filter. The space for mounting the fiber disc filter can be further reduced.

(6) At this time, the backwash suction device is mounted so that the backwash suction plate is positioned on a line passing through the diameter of the fiber disk filter or at a position similar to this diameter, so that the backwash suction plate arranged along the radial direction of the fiber disk filter is the fiber disk. The load resistance can be minimized by reducing the contact area with the filter. Accordingly, the fiber disk filter can be used for a long time.

[FIG. 1] is a side cross-sectional view showing the overall configuration of a fiber disk filter equipped with a conventional backwash suction device.
[Fig. 2] is a front cross-sectional view showing the overall configuration of a fiber disk filter equipped with a conventional backwash suction device.
[FIG. 3] is an enlarged view of part "A" in [FIG. 1] to show the mounting state of the conventional backwash suction device.
[Fig. 4] is a side cross-sectional view showing the overall configuration of a fiber disk filter equipped with a backwash suction device according to [Example 1] of the present invention.
[FIG. 5] is a front cross-sectional view showing the overall configuration of a fiber disk filter equipped with a backwash suction device according to [Example 1] of the present invention.
[FIG. 6] is an enlarged enlarged view of part "B" in [FIG. 4] showing a backwash suction device mounted between two fiber disk filters according to [Example 1] of the present invention.
[Fig. 7] is an enlarged view further enlarged to show the mounting state of two backwash suction devices mounted between two fiber disk filters according to [Example 1] of the present invention.
[Fig. 8] is a side cross-sectional view showing the overall configuration of a fiber disk filter equipped with a backwash suction device according to [Example 2] of the present invention.
[Fig. 9] is a front cross-sectional view showing the overall configuration of a fiber disk filter equipped with a backwash suction device according to [Example 2] of the present invention.
[Fig. 10] is a plan view showing the overall configuration of a fiber disk filter equipped with a backwash suction device according to [Example 2] of the present invention.
[FIG. 11] is an enlarged view showing a state in which a backwash suction device composed of two integrally formed between two fiber disk filters is mounted according to [Example 3] of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concept of the term in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention in accordance with the principle that can be.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only one most preferred embodiment of the present invention and do not represent all the technical spirit of the present invention, so various equivalents that can be substituted for them at the time of the present application It should be understood that there may be variations and examples.

The fiber disk filter according to [Example 1] of the present invention, as shown in [Fig. 4] to [Fig. 7], the filtration tank 100, the shaft 200, the fiber disk filter 300, the backwash suction device 400 ) is included.

In particular, the backwash suction device 400 is installed with a height difference between the two adjacent fiber disk filters 300, so that the spacing between the two backwash suction devices 400 is installed. That is, by minimizing the gap between two adjacent fiber disk filters 300, it is possible to manufacture a fiber disk filter having the same filtration capacity and having a smaller size.

At this time, in the backwash suction device 400 , the backwash suction plate 450 , which has a substantially backwashing action, is mounted close to the imaginary line connecting the edges of the fiber disk filter 300 at the rotation center of the fiber disk filter 300 , so that the fiber disk By minimizing the area in contact with the surface of the filter 300, it is possible to increase the cleaning effect on the entire fiber disk filter 300 while reducing the load during backwashing.

Hereinafter, such a configuration will be described in more detail with reference to the accompanying drawings.

go. filter tank

The filtration tank 100, as shown in [Fig. 4] and [Fig. 5], receives and stores sewage or waste water from the outside, and a filtration action can be made through a fiber disk filter 300 to be described later mounted therein. do.

Such a filtration tank 100 is manufactured with a capacity to store sewage or wastewater suitable for the filtration capacity of the fiber disk filter, and in this way, other filters or filtration methods are applied in addition to the fiber disk filter 300 so that filtration can be performed. It can also be configured.

me. shaft

The shaft 200 is mounted to rotate in place in the above-described filtration tank 100, as shown in FIGS. 4 to 6, and a fiber disk filter 300 to be described later is mounted on the outside to rotate in place. configure it to be The rotation at this time is configured to be able to rotate by receiving the rotation of an actuator such as a motor through a chain, gear, or belt.

In particular, the shaft 200 is made of a hollow, and on the outer periphery, the filtered water filtered by the fiber disk filter 300 to be described later flows into the shaft 200 so that the filtered water can be discharged out of the filtration tank 100 .

all. fiber disc filter

A plurality of fiber disk filters 300 are installed at a predetermined interval W ′ on the shaft 200 described above, as shown in FIGS. 4 to 7 . Here, the fiber disk filter 300 is manufactured in the form of a grid using a frame, etc., and the outer periphery is wrapped with a fiber filter so that sewage or wastewater is transmitted from the outside of the fiber disk filter 300 to the inside to perform a filtration action. In addition, the fiber disk filter 300 passes through the water filtered in this way and passes through the drain hole formed on the outer periphery of the shaft 200 and discharges out of the filtration tank 100 through the hollow part of the shaft 200 . install it so you can

La. backwash suction device

The backwash suction device 400 is mounted in the above-described filtration tank 100 to backwash the surface of the fiber disk filter 300 as shown in FIGS. 4 to 7 . At this time, the backwash suction device 400 forms the gap (W') between two adjacent fiber disk filters 300 as narrow as possible so that the same number of fiber disk filters 300 can be formed on a shorter shaft ( 200) to minimize the overall size of the fiber disk filter.

To this end, the backwash suction device 400, as shown in [Fig. 6] and [Fig. 7], the fixing bracket 410, the first support bar 420' and the second support bar 420", A first load bar 430 ′, a second load bar 430 ″, a backwash box 440 , and a backwash suction plate 450 are included.

1. Fixing bracket

The fixing bracket 410 is a bracket for mounting on the above-described filtration tank 100 and supporting another configuration to be described later, as shown in FIGS. 5 and 6 . The fixing bracket 410 may be configured to support a plurality of first support bars 420 ′ and second support bars 420 ″, which will be described later, at a time by mounting one of the above-described ones in the filtration tank 100 . Also, at least one of the first support bar 420 ′ and the second support bar 420 ″ may be fixed using the fixing bracket 410 .

2. The first support bar and the second support bar

The first support bar 420' and the second support bar 420', 420" are, as shown in [Fig. 5] and [Fig. 6], a first load bar 430' and a second load bar ( 430"), the configuration is the same, but there is a difference in the cleaning position of the above-described fiber disk filter 300.

That is, as shown in [Fig. 5] and [Fig. 6], the first support bar 420' has one side fixed to the above-mentioned fixing bracket 410 and the other side between two adjacent fiber disk filters 300. It is mounted to protrude to support the surfaces of the two fiber disk filters 300 facing each other so that they can be backwashed. One side of the fiber disk filter 300 mounted side by side on the shaft 200 is for supporting the outermost surface of the fiber disk filter 300 so that it can be backwashed.

3. first load bar second rod bar

The first load bar 430 ′ and the second load bar 430 ″ are, as shown in FIGS. 5 to 7 , the above-described first support bar 420 ′ and the second support bar 420 ″. It is mounted so that one side is supported by the spring 431 to rotate toward the fiber disk filter 300 side. At this time, the first load bar 430 ′ is configured to receive elastic support so that the two sides of the first load bar 430 ′ are separated from each other, so that the surfaces of the two adjacent fiber disk filters 300 can be simultaneously backwashed. In addition, since the second load bar 430″ backwashes the outermost fiber disk filter 300 mounted on the shaft 200, only one is configured.

In a preferred embodiment of the present invention, it is described that the first load bar 430' and the second load bar 430" are configured one by one, but preferably two or more are configured each. Since the backwashing box, which will be described later, is manufactured in the form of a length member, this length member is supported by at least two rod bars so that it can be used stably.

In addition, the spring 431 may be any one that can provide an elastic force, and in [FIG. 6], it is formed in a "V" shape, and the lower part is mounted on the fixing bracket 410, and both sides are respectively first An example is shown in which the load bar 430' is opened to the outside, or only one is fixed to the second load bar 430" so that it can be elastically supported.

On the other hand, in a preferred embodiment of the present invention, the first load bar 430' is provided on the portion facing the two fiber disk filters 300 facing each other as shown in [Fig. 6] and [Fig. 7], respectively. Two lengths mounted on the support bar 420 are manufactured to be different from each other so that the backwashing box 440 can be mounted to perform backwashing. This allows the two backwashing boxes 440 mounted on each first load bar 430' to not interfere with each other or to minimize interference while backwashing the surfaces of two adjacent fiber disk filters 300. This is to configure the gap (W') between two adjacent fiber disk filters 300 to be mounted narrower than the conventional gap. Accordingly, when the same number of fiber disk filters 300 are mounted, the length of the shaft 200 can be reduced, and as a result, the overall size of the fiber disk filter can be reduced.

In addition, in a preferred embodiment of the present invention, each of the first load bar 430 ′ and the second load bar 430 ″ is, as shown in FIG. 5 , two backwashing mounted on each load bar 430 . The backwash suction plate 450 to be installed in the compartment 440 is preferably mounted as close as possible to an imaginary line drawn from the center of rotation of the fiber disk filter 300 to its edge. ) is arranged to be the same as or almost coincident with the virtual radial direction of the fiber disk filter 300, thereby minimizing the area in which the backwash suction plate 450 comes into contact with the fiber disk filter 300, thereby minimizing the frictional load generated during backwashing. This is to enable the backwash suction plate 450 to stably backwash the entire surface of the fiber disk filter 300 as the fiber disk filter 300 rotates once.

4. backwash

The backwashing box 440 is a kind of container, as shown in [FIG. In particular, the backwash box 440 connects the edge of the fiber disk filter 300 on the shaft 200 so that the entire surface of the fiber disk filter 300 can be cleaned as the fiber disk filter 300 rotates once. It is preferable to manufacture it in length. This is because the backwashing box 440 is installed parallel to or close to the radius of the fiber disk filter 300, so that when the fiber disk filter 300 rotates once, backwashing of one side of the fiber disk filter 300 is completed. in order to be able to The backwash box 440 is configured to suck the surface of the fiber disk filter 300 through a suction means such as a pump and discharge it out of the filtration tank 100 .

5. backwash suction plate

The backwash suction plate 450 closes one open side of the backwash box 440 having the above-described container shape, as shown in FIGS. 6 and 7 , and is substantially the surface of the fiber disk filter 300 . A slit is formed for backwashing. At this time, as described above, the slit is preferably formed through the backwash suction plate 450 so as to come to the same or similar position in the radial direction of the fiber disk filter 300 .

The present invention, which has been made as described above, constitutes the backwash suction device and manufactures two load bars with different lengths for supporting the two backwash boxes, and by configuring these two backwash boxes to eliminate or minimize the interference gap, Since the gap between one or two fiber disc filters can be reduced, the length of the shaft can be reduced even if the same number of fiber disc filters are installed, resulting in a downsizing of the fiber disc filter.

That is, Example 1 can reduce the spacing between the fiber disk filters by about 20% compared to the cited prior art, and accordingly, in the fiber disk filter having the same processing capacity, the fiber fiber disk filter of Example 1 is the cited prior art fiber Compared to disk filters, the size can be reduced by about 20%.

The fiber disk filter according to [Embodiment 2] of the present invention, as shown in [Fig. There is a difference in the configuration and the mounting position of the backwash suction device 400 . Therefore, here, detailed description of the same configuration as in [Embodiment 1] is omitted, and the difference configuration will be mainly described.

In [Embodiment 2], the backwash suction device 400 includes a fixing bracket 410, a support bar 420, a load bar 430, and a backwash box as shown in FIGS. 8 to 10. 440 ), and a backwash suction plate 450 . Among them, the configuration of the fixing bracket 410 , the backwashing box 440 , and the backwashing box suction plate 450 is the same as that of the above-described [Embodiment 1], and thus detailed description thereof will be omitted.

The support bar 420 and the load bar 430, which are different configurations, are used, respectively, unlike [Example 1], as shown in [Fig. 8] to [Fig. 10]. This is one of the surfaces of one fiber disk filter 300 through one backwash box 440 in a state where one load bar 430 is supported by a spring 431 on one support bar 420 . This is to configure it so that it can be backwashed.

In particular, since the backwashing box 440 is supported and fixed with one support bar 420 and one load bar 430, respectively, as in [Fig. 8] to [Fig. 10], two stations according to [Example 2] By mounting the washing suction device 400 alternately on the surface of one fiber disk filter 300 , the interval between two adjacent fiber disk filters 300 is the interval at which one backwash suction device 400 can be mounted. can be minimized with At this time, the two backwash suction devices 400 are disposed on both sides with the shaft 200 as the center, and by displacing them alternately on both sides of the fiber disk filter 300, both sides of one fiber disk filter 300 are removed. The back-washing position becomes symmetrical on both sides when viewed with respect to the shaft 200 .

In a preferred embodiment of the present invention, the two backwash suction devices 400 staggered for one fiber disk filter 300 as described above have a backwash suction plate 450 passing through the center of the fiber disk filter 300 . By mounting it on an imaginary diameter, the backwash suction device 400 minimizes the area in contact with the surface of the fiber disk filter 300 to reduce frictional resistance to a minimum, and when the fiber disk filter 300 rotates once, the surface It is preferable to configure the whole to be able to be backwashed.

As described above, the backwash suction device that backwashes both sides of one fiber disk filter is mounted on the filtration tank so that it is positioned displaced from each other on both sides with respect to the shaft, thereby minimizing the gap between two adjacent fiber disk filters. there will be

That is, Example 1 can reduce the spacing between the fiber disk filters by about 50% compared to the cited prior art, and accordingly, in the fiber disk filter having the same processing capacity, the fiber fiber disk filter of Example 1 is the cited prior art fiber Compared to disk filters, the size can be reduced by 50%.

The fiber disk filter according to [Embodiment 3] of the present invention, as in [Fig. 11], [Fig. 11], has the same configuration as [Embodiment 1] described above, but constitutes the backwash suction device 400 There are differences in some configurations. Therefore, here, detailed description of the same configuration as in [Embodiment 1] is omitted, and the difference configuration will be mainly described.

That is, the backwash suction device 400 according to the third embodiment is, as shown in FIG. 11 , the fixing bracket 410 , the first support bar 420 ′, the second support bar 420 ″, and the second support bar 420 ″. It comprises a first load bar 430', a second load bar 430", first and second backwash boxes 440' and 440", and a backwash suction plate 450. Here, the fixing The configuration of the bracket 410, the first support bar 420', the second support bar 420", the second load bar 430", and the backwash suction plate 450 is the same as in [Embodiment 1]. Since it is a structure, the detailed description is abbreviate|omitted here.

First, the first load bar 430 ′ is mounted on the first support bar 420 ′ as shown in FIG. 11 , and rotates toward the fiber disk filter 300 face facing each other. The two first backwash boxes 440 ′ used to backwash the two fiber disk filter 300 faces facing each other are simultaneously supported and fixed.

In particular, as shown in [Fig. 11], by integrally manufacturing the two first backwashing boxes 440' for backwashing the surfaces of the two fiber disk filter 300 facing each other, two fiber disk filters facing each other ( 300) not only can be back-washed at the same time, but also can minimize the gap between the two fiber disk filters 300 facing each other by being integrally manufactured in this way. Here, the two first backwashing boxes 440' are integrally combined with the backwashing boxes used in the other embodiments described above through methods such as bolting, welding, and thermal fusion, or using methods such as extrusion or injection. It can also be used by making a backwash box in advance when first manufacturing it.

Therefore, by integrally configuring the two backwash boxes to be mounted between the two adjacent fiber disk filters, the mounting interval between the two backwash suction devices can be reduced, so that the same number of backwashing devices can be installed on a shorter shaft than before. It is possible to mount a fiber disk filter of

That is, Example 1 can reduce the spacing between the fiber disk filters by about 20% compared to the cited prior art, and accordingly, in the fiber disk filter having the same processing capacity, the fiber fiber disk filter of Example 1 is the cited prior art fiber Compared to disk filters, the size can be reduced by about 20%.

100: filter tank
200: shaft
300: fiber disk filter
400: backwash suction device
410: fixing bracket
420', 420": first and second support bars
430', 430": second, second load bar
440, 440', 440": backwash
450: backwash suction plate

Claims (2)

a filtration tank 100 for filtering receiving sewage or wastewater; Shaft 200 for discharging the filtered water filtered while rotating in place in the filtration tank 100 to the outside of the filtration tank 100; A plurality of fiber disk filters 300 installed at a predetermined interval (W) on the shaft 200 to drain the filtered water through the shaft 200 by sucking the sewage or wastewater from the outside into the inside; and a plurality of backwash suction devices 400 installed in the filtration tank 100 to backwash the surface of each fiber disk filter 300,
The backwash suction device 400 includes a fixing bracket 410 fixed to the filtration tank 100 ; a support bar 420 having one end fixed to the fixing bracket 410 and the other end mounted to protrude to face the fiber disk filter 300 surface; a load bar 430 rotatably mounted to the support bar 420 with a spring 431 supported toward the fiber disk filter 300 surface; a backwash box 440 mounted on the load bar 430; and a backwash suction plate 450 mounted on each backwash box 440 to backwash the fiber disk filter 300 surface.
Two backwash suction devices 400 for backwashing both sides of each fiber disk filter 300, respectively,
The backwash suction device 400 can be installed at an interval (W') narrower than the interval (W) by mounting them to be alternately positioned on both sides of each fiber disk filter 300 with respect to the shaft 200 Characterized by a fiber disk filter.
In claim 1,
The backwash suction plate 450 is
A fiber disk filter, characterized in that it is mounted on an imaginary diameter passing through the center of the fiber disk filter (300).

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