KR20120086501A - Filtering disc for disc stacking type filtering apparatus and water treatment system with the disc stacking type filtering apparatus - Google Patents

Abstract

PURPOSE: A filtering disk for a stacked disk type filtering apparatus and a water treating system equipped with the stacked disk type filtering apparatus are provided to maximize the filtration areas of filtering parts through which water passes. CONSTITUTION: A filtering disk for a stacked disk type filtering apparatus includes a disk body(111), a first filtering part(112), and a second filtering part(113). The disk body is a plate, and a through hole is formed at the center part of the plate. The first filtering part is composed of a plurality of first filtering paths which is formed into a plurality of first filtering grooves(112-1) on the outer circumference of the disk body. The second filtering part is composed of a plurality of second filtering paths which is formed into a plurality of second filtering grooves. The second filtering grooves are arranged in the first filtering part. Feed water passes through the first filtering part and successively passes through the second filtering part.

Description

Filtering disc for disc stacking type filtering apparatus and water treatment system with the disc stacking type filtering apparatus}

The present invention relates to a water treatment system having a filtration disk for a stacked filtration device and a stacked filtration device. The present invention relates to a water treatment system having a filtration disc for a stacked filtration device and a stacked filtration device that can be improved.

Disc stacked filtration system for purifying raw water, which is waste and waste water, by using filtration media formed by stacking annular filtration discs was originally developed as a filtration device for military operation fluid, and its field of application is wide as a filtration device for agricultural water and industrial water. lost.

Such disk stacked filtration devices have a wider field of application because of the advantage of being able to quickly and easily remove contaminants from liquids and to easily remove contaminated particles collected without disassembling the device.

1 and 2 are separate perspective views schematically showing such a disk stacked filtration apparatus and a plan view of a filtration disk 10 (hereinafter, referred to as a 'filtration disk') provided in the disk stacked filtration apparatus.

The conventional filtering disk 10 is provided in the shape of an annular disk having a through hole 12 formed in the center thereof, and a plurality of filtering grooves 11 are formed to rotate 360 ° on one surface thereof.

The conventional filtering disk 10 is stacked in a number so that the support member 20 is inserted into the through hole 12 to form a filter body (10a), the filter body (10a) inside the filter cylinder (30) Is located. The plurality of filtration discs 10 having the filter body 10a are pressed against each other by a pressure member 40 installed at the end of the support member 20.

At this time, the plurality of filtration grooves 11 formed in the filtration disk 10 forms a filtration flow path through which raw water, which is waste and waste water, may pass while being in close contact with the neighboring filtration disk 10. This filtration flow path serves to collect contaminant particles contained in the raw water while passing the raw water from the outside to the inside of the filter body 10a.

The disk stacking filtration apparatus provided with the conventional filtering disk 10 selectively alternately performs a filtration process for purifying raw water and a backwashing process for cleaning the filtration disk 10 contaminated with contaminated particles.

In the filtration process, raw water is introduced into the filtration cylinder 30 through a raw water supply pipe (not shown), and the raw water is filtered through a filtration passage formed by a plurality of filtration grooves 11 of the filtration disk 10. The sieve 10a is passed from the outside to the inside, wherein contaminant particles larger than the width of the filtration groove 11 are the outer inlet of the filtration flow path formed by the filtration groove 11 (that is, the outer circumferential surface of the filtration body 10a). Or the raw water is purified to be collected therein. The purified water purified and purified by the raw water is discharged through a purified water discharge pipe (not shown) in communication with the inside of the filter body 10a.

On the other hand, when a large number of contaminated particles are collected and the filter body 10a is contaminated, the supply of raw water is interrupted, and then the purified water is supplied to the inside of the filtration cylinder 30 in the reverse direction through the purified water discharge pipe. Pressurization of the pressurizing member 40 against the filtration disk 10 is released, and a plurality of filtration disks 10 are spaced apart from each other and the purified water is collected in the filtration groove 11 while passing through the filter body 10a from the inside to the outside. The contaminated particles. The washing water containing the contaminated particles is discharged from the filtration cylinder 30 through a separate drain pipe (not shown) or raw water supply pipe.

As described above, the conventional filter disc 10 has a limitation in that the size of the contaminant particles that can be collected and removed is limited to the size of the filter groove 11 formed on the surface thereof. In this case, in the case of using the filtration disk 10 with the filter groove 11 formed in a small amount to remove the small contaminant particles by adjusting the filtration performance upward, the filter groove 11 due to the large contaminant particles during the filtration process. ) Is quickly closed, there is a problem that the filtration function is rapidly lowered within a short time.

For this reason, in the case of the conventional filter disc 10, when the size of the contaminant particles contained in the raw water is varied, there is a limit in adjusting the filtration performance up.

And since large contaminant particles are mostly collected in the limited area corresponding to the outer inlet of the filtration flow path formed by the filtration groove 11, the problem of sudden deterioration of the filtration function is more serious. Accordingly, there is a disadvantage in that a backwashing process for washing the filtration disc 10 must be performed very often compared to the time of the filtration process. In addition, since the area in which the polluted particles are collected is limited, there is a disadvantage in that the filtration efficiency is lower than that of the filter body 10.

In order to solve the problems as described above, the present invention, the raw water can be filtered again within a limited space to maximize the filtration area that can pass the raw water per unit time, and contaminated particles of different sizes contained in the raw water Filtration discs for disk stacked filtration devices that can be collected in different spaces and preferentially collect large sized contaminants so that small sized contaminants cannot be easily closed due to large sized contaminants. A water treatment system having a disk stacked filtration device is provided.

In order to solve the problems as described above, the disk disk-type filtration device filter disk according to an embodiment of the present invention, a plurality of stacked in the filtration cylinder to form a filter body, passing through the filter body by water pressure A filtering disk for filtering and purifying contaminated particles of a liquid, comprising: a disk body provided in a plate shape having a through hole formed at a central portion thereof; A first filtration part comprising a plurality of first filtration flow paths formed by a plurality of first filtration grooves provided on an outer circumference of the disc body; And a second filtration part including a plurality of second filtration flow paths formed in the disk body and having a plurality of second filtration grooves provided inside the first filtration part. After filtration through the second filtration sequentially.

In the disk stack type filter device according to another embodiment of the present invention, a plurality of filter disks are stacked inside the filtration cylinder to form a filter body, and the filter disk for filtering the contaminated particles of the liquid passing through the filter medium by water pressure A disk body provided in a plate shape having a through hole formed at a center thereof; A first filtration part including a plurality of first filtration flow paths formed as a space between the plurality of first filtration protrusions provided on an outer circumference of the disc body; And a second filtration part including a plurality of second filtration flow paths formed in a space between the plurality of second filtration protrusions provided on the inner side of the first filtration part in the disk body. After passing through the filter, the second filter is filtered again as the second filter passes sequentially.

The second filtration passage may be smaller than the first filtration passage.

The first filtration unit and the second filtration unit may be provided in a closed loop shape.

The closed loop shape may be provided to have a repetitive bending pattern or a bending pattern.

The bending pattern may be a wavy pattern.

The bending pattern may be a sawtooth pattern.

The filtration disk for the disk stacking filtration device may be formed of a plurality of third filtration grooves provided inside the second filtration part including the plurality of second filtration flow paths in the disk body, or may be provided inside the second filtration part. And at least one third filtration unit each consisting of a plurality of third filtration passages formed as a space between the plurality of third filtration protrusions.

The third filtration passage may be formed smaller than the second filtration passage.

According to another aspect of the present invention, there is provided a water treatment system equipped with a disk stacking filtration device, including: a raw water tank into which raw water, which is waste water, is introduced or discharged; A filtration cylinder, a plurality of the filtration disks according to claim 1 or 2 so as to collect contaminated particles contained in the raw water are stacked in the filtration cylinder, a plurality of the filtration body to maintain the stacked form The raw water introduced into the filtration cylinder through a support member for supporting a filtration disk, a pressurizing member for pressurizing the plurality of filtration disks in close contact with each other, and a raw water supply pipe connected to the raw water tank, and the filter body from the outside to the inside. A disk stacked filtration device including a purified water discharge pipe through which filtered purified water is discharged; A backwash tank in which a portion of the purified water is introduced and stored through the purified water discharge pipe; And an air supply device for supplying compressed air through an air supply pipe inside the filtration cylinder, wherein the raw water flows into the disk stacked filtration device and the purified water is discharged to the purified water discharge pipe, and the backwash tank. The purified water stored in is supplied to the disk stacked filtration device through a backwashing pipe connected to the purified water discharge pipe and the pressurization of the pressing member against the plurality of the filtering disks is released by the supply pressure, and the purified water is discharged from the disk stacked filtration device. A backwashing process is optionally performed to backwash the plurality of filter discs.

According to the water treatment system including the disk-type filtration disk and the disk-layer filtration device of the present invention, the raw water, which is the wastewater and waste water, is a passage through which raw water passes and contaminated particles contained in the raw water. Filtration grooves or projections forming the filtration flow passages, which serve to collect, are separately provided as the first and second filtration portions on the outer circumferential surface and the inner side of the disc body. It is filtered again while passing through two filtration parts, and can greatly improve filtration efficiency.

Therefore, since the multi-filtration function can be implemented twice within a limited space, the filtration area of the filter medium through which raw water passes can be maximized, thereby greatly improving the filtration efficiency.

In addition, the first and second filtration units are provided in a closed loop shape having a repeated bending pattern or a bending pattern rotating 360 ° with respect to the center of the disk body, thereby further maximizing such filtration area. This makes it possible to process more raw water per hour with a disk stacked filtration device of limited size and to process more raw water during the same time.

In addition, a plurality of second filtration passages forming a second filtration unit is provided smaller than a plurality of first filtration passages constituting a first filtration unit. It is collected and primarily filtered and subsequently passed through a second filtration section, where relatively small contaminants are collected in a plurality of second filtration passages and secondly filtered.

Therefore, since contaminants of different sizes are collected in different spaces, the filtration performance can be maintained for a long time without the risk of closing the filtration channel quickly due to large contaminants as the filtration process proceeds.

In addition, since the pollutant particles of such a large size are collected first, by forming the second filtration channel sufficiently small without fear of closure, the size of the pollutant particles to be filtered can be extended to a very small size, thereby improving the filtration performance.

Figure 1 is an exploded perspective view schematically showing a disk stacked filtration device equipped with a conventional filtration disk,
2 is a plan view of a filtration disk for a conventional disk stacking filtration device,
3 is a plan view of a filtration disk for a disk stacked filter device according to a first embodiment of the present invention;
4 is a side view schematically showing a disk stacked filtration device having a disk for filtering a disk stacked filter device according to a first embodiment of the present invention;
5 is a plan view of a filtration disk for a disk stacked filter device according to a second embodiment of the present invention;
6 is a block diagram of a water treatment system equipped with a disk stacked filtration device according to an embodiment of the present invention,
7 is a view illustrating a state in which a disk stacked filtration apparatus includes a plurality of filter bodies in a water treatment system equipped with a disk stacked filtration apparatus according to a preferred embodiment of the present invention.
8 is a block diagram showing a state in which a water treatment system equipped with a disk stacked filtration apparatus according to a preferred embodiment of the present invention performs a filtration process;
9 is a block diagram showing a state in which a water treatment system equipped with a disk stacked filtration device according to an embodiment of the present invention performs a backwashing process,
10 is a block diagram showing a state in which a water treatment system equipped with a disk stacked filtration apparatus according to a preferred embodiment of the present invention performs a cleaning process.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains (hereinafter, referred to as a person skilled in the art) may easily perform the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The filtration disk (hereinafter, referred to as a 'filtration disk') for a disk stacked filtration device according to the present invention is a unit that forms a filter body that performs a filtration function of a disk stacked filtration device by stacking a plurality of closely adhered, wherein the disk stacked filtration. The device is designed to be used as a source of contaminated particles contained in raw water as the raw water, which is the waste water, passes from the inside of the filter body to the inside or from the outside of the filter medium through the grooves or protrusions formed on the surface thereof. It is a filtration device to purify raw water in a manner that is collected in.

Hereinafter, with reference to the accompanying Figures 3 and 4, the configuration and effect of the filter disk 110 according to the first embodiment of the present invention will be described in detail.

The filtration disc 110 according to the first embodiment of the present invention includes a disc body 111, a first filter part 112, and a second filter part 113.

The disk body 111 is made of a material such as resin, and is provided in the form of an annular plate formed with a through hole 111-1 in the center to form the body of the filtering disk 110.

However, the material or shape of the disc body 111 is not limited thereto. In particular, the planar outer circumferential shape of the disk body 111 may be implemented not only circular but also rectangular, pentagonal or hexagonal.

The first filtration unit 112 is composed of a plurality of first filtration passages formed of a plurality of first filtration grooves 112-1 provided at a predetermined wide interval on the outer circumference of one side of the disc body 111, and in the raw water 1 Secondly, it collects pollutant particles of large size.

Accordingly, the large-sized contaminant particles included in the raw water may be formed in the outer inlet or the first filtration passage of the first filtration passage formed by the plurality of first filtration grooves 112-1. Is collected.

In the first embodiment of the present invention, when the plurality of first filtration passages are formed of the plurality of first filtration grooves 112-1, the first filtration grooves 112-1 become the first filtration passage as they are. Since the reference numerals of the first filtration passage coincide with the reference numerals of the first filtration groove 112-1, they are not separately indicated, but in another embodiment, the plurality of first filtration passages are formed of a plurality of first filtration protrusions. In this case, the spaces between the plurality of first filtration protrusions each become a first filtration flow path.

The second filtration unit 113 has a plurality of second provided at intervals narrower than the interval of the plurality of first filtration grooves 112-1 inside the first filtration unit 112 on one surface of the disk body 111. Consists of a plurality of second filtration flow path formed by the filter groove 113-1, to collect the polluted particles of a relatively small size from the raw water through the first filtration unit 112 and the large sized contaminant particles are removed. It plays a role.

Therefore, the small-sized contaminated particles contained in the raw water are collected in the outer inlet of the second filtration passage formed by the plurality of second filtration grooves 113-1 or inside the second filtration passage.

That is, the area where large-sized contaminants and small-sized contaminants are collected is distinguished. Therefore, compared to the prior art in which contaminant particles are mostly collected at the outer circumference of the filtration disc 110, the entire area of the filtration disc 110 may be utilized in terms of collecting function of the contaminant particles.

In addition, by first collecting and removing contaminated particles of large size in the first filter part 112, the second filter part 113, which is composed of the second filter passage of small size, is closed in a short time due to the contaminated particles of large size. Is prevented.

In the first embodiment of the present invention, when the plurality of second filtration passages are formed of the plurality of second filtration grooves 113-1, the second filtration grooves 113-1 become the second filtration passages as they are. Since the reference numerals of the second filtration passage correspond to those of the second filtration groove 113-1, they are not separately marked similarly to the case of the first filtration passage, but in another embodiment, a plurality of second filtration passages When formed with a plurality of second filtration protrusions, the spaces between the plurality of second filtration protrusions become second filtration passages, respectively.

In the first embodiment of the present invention, the plurality of second filtration passages forming the second filtration unit 113 may be smaller than the plurality of first filtration passages constituting the first filtration unit 112. Although the filter unit 112 is configured to collect the pollutant particles of a relatively large size and the second filter unit 113 is configured to collect the pollutant particles of a relatively small size, it is understood that this is not an essential element in the present invention.

That is, the first and second filtration passages may be provided at the same or similar intervals. In this case, the raw water passes through the first filtration unit 112 and then sequentially passes through the second filtration unit 113. Filtration again has the effect of improving the filtration efficiency.

In the first embodiment of the present invention, the first and second filtration units 112 and 113 are formed of filtration flow paths formed by a plurality of filtration grooves provided on one surface of the disc body 111. However, the present invention is not limited thereto. The filtration groove forming the filtration flow path may be formed on both sides of the disc body 111. As described above, the filtration flow path may be formed as a space between the plurality of filtration projections instead of the plurality of filtration grooves. It may be.

In addition, in the first embodiment of the present invention, as shown in Figure 4, the cross-sectional shape of the filter groove is implemented in a rectangular to square, but is not limited to this may be implemented in various shapes such as triangle, trapezoidal shape. Of course.

In addition, in the first embodiment of the present invention, the disk body 111 is provided with two filtration units of the first and second filtration units 112 and 113, but is not limited thereto and is provided with three or more filtration units. May be

For example, at least one third filtration part formed of a plurality of third filtration grooves or a plurality of third filtration flow paths formed as a space between the plurality of third filtration protrusions may be formed inside the second filtration part 113. It may be provided. At this time, the plurality of third filtration passages forming the third filtration portion is formed smaller than the plurality of second filtration passages forming the second filtration portion 113, and the size of the flow path is smaller than that of the first, second, and third filtration passages. It may be provided to be smaller in order. Accordingly, the raw water may be cleanly purified several times while sequentially passing through the first filter 112, the second filter 113, and one or more third filters.

On the other hand, in the first embodiment of the present invention it will be described that the size of the flow path is reduced in stages in the order of the first, second, third filtration flow path on the basis of the raw water passes from the outside of the filter medium to the inside However, when the raw water is provided to pass from the inside of the filter body to the outside, the size of the flow path may be provided to be smaller step by step in the order of the third, second, first filtration flow path.

Since the specific configuration and shape of the third filter part is similar to the configuration and shape of the first and second filter parts 112 and 113, a detailed description or illustration thereof will be omitted.

Hereinafter, the configuration and use state of the disk stacked filtration apparatus 100 provided with the filtration disk 110 according to the first embodiment of the present invention will be described in detail.

The disk stacked filtration apparatus 100 includes a filtration cylinder 120, a filter body 110a, a support member 130, a pressurizing member 140, and a purified water discharge pipe (not shown).

The filtration cylinder 120 provides a closed space in which the filter body 110a is accommodated, and raw water, that is, waste water, is introduced therein.

The filter body 110a is formed by closely stacking a plurality of filtration disks 110 as described above so that the support member 130 provided in the filtration cylinder 120 is inserted into the through hole 111-1. It captures and removes contaminants from raw water.

That is, the raw water introduced into the filtration cylinder 120 is formed by the first and second filtration grooves 112-1 and 113-1, so that the first and second filtration units 112 and 113 of the filtration disk 110 are formed. The filter body 110a passes through the filter body 110a from the outside to the inside through the first and second filtration flow paths forming? At this time, the contaminated particles contained in the raw water are collected at the outer inlet or inside of the first and second filtration passages.

The support member 130 supports and guides the plurality of filtration disks 110 to maintain their stacked form. In FIG. 4, the triangular triangular support member 130 is implemented, but the shape is not limited thereto, and may be provided outside the through hole 111-1 of the filter disc 110.

The pressing member 140 is installed on the upper end of the support member 130 to press the plurality of filtering disk 110 in close contact with each other. To this end, an elastic body such as an elastic spring is provided inside the pressing member 140.

In the backwashing process for washing the filtration disk 110 of the water treatment system to be described later, the pressure member 140 releases the pressure on the plurality of filtration disks 110 by the supply pressure of the purified water supplied in the reverse direction. This makes it easier to clean the contaminant particles collected in the first and second filtration units 112 and 113 while the plurality of filtration discs 110 are opened.

The purified water discharge pipe 150 is provided in communication with the inside of the filter body (110a) to discharge the purified water filtered by the raw water passing through the filter body (110a) from the outside to the filter cylinder (120).

How the disk stacked filtration apparatus 100 as described above operates in the water treatment system will be described in more detail with reference to the water treatment system described below.

Hereinafter, the configuration and operation effects of the filtration disc 110 ′ according to the second embodiment of the present invention will be described in detail with reference to FIG. 5. The filter disc 110 ′ according to the second embodiment of the present invention has the configuration and use state of the disc body 111 except for the first filter part 112 ′ and the second filter part 113 ′. Similar to the filtration disc 110 according to the first embodiment of the. Therefore, hereinafter, the first filtration unit 112 ′ and the second filtration unit 113 ′ of the filtration disc 110 ′ according to the second embodiment of the present invention will be described, and the structure of the disc body 111 and The description of the use state will be omitted.

The first filtering part 112 ′ is provided in a closed loop shape having a repeated bending pattern or a bending pattern that rotates 360 ° based on the center of the disk body 111. That is, the first filtration unit 112 ′ has a predetermined width at one outer circumference of the disc body 111 and is provided in the plurality of first filtration grooves 112-1 ′ provided in an area having the closed loop shape described above. It consists of a plurality of first filtration flow paths formed by

In addition, the second filtration unit 113 ′ is similarly provided in a closed loop shape having a repeated bending pattern or a bending pattern that rotates 360 ° based on the center of the disc body 111. In other words, the second filtration unit 113 ′ has a predetermined width at the center of one surface of the disc body 111 and includes a plurality of second filtration grooves 113-1 ′ provided in an area having the closed loop shape. It consists of a plurality of second filtration passages formed smaller than the first filtration passage.

Here, the bending pattern may be a sawtooth pattern, the bending pattern may be a wavy pattern, and the closed loop shape may be circular, as shown in FIG. 5.

However, such a pattern and a closed loop shape are merely exemplary, and if a predetermined pattern is repeated and formed to form a closed loop, it may be sufficient, and various closed loop shapes having various patterns may be implemented. For example, the bending pattern may be a sinusoidal pattern, and the closed loop shape may be hexagonal.

As such, when the first and second filtration units 112 ′ and 113 ′ are provided in a closed loop shape having a repeated bending pattern or a bending pattern, a direction in which raw water passing through the filter body 110a from the outside passes through By increasing the filtration area across the filter, it is possible to treat more raw water per hour with the filter body 110a of a limited size, and to process more raw water for the same time.

6 and 7, the configuration and effect of the water treatment system (hereinafter, referred to as “water treatment system”) equipped with a disk stacked filtration apparatus according to a preferred embodiment of the present invention will be described in detail.

Water treatment system according to a preferred embodiment of the present invention, the raw water tank 200, the disk stacking filtration device 100, the backwash tank 300, the air supply device 400, the detergent tank 500 and cleaning as described above It may be made including a tank (600).

The raw water tank 200 provides a space in which raw water (RW), which is wastewater and waste water, is introduced and temporarily stored. The raw water RW stored in the raw water tank 200 is transferred to the raw water supply pipe 210 connected to the disk stacked filtration apparatus 100 by the supply pump M-1.

The disk stacked filtration apparatus 100 is provided with a filter body 110a formed by stacking a plurality of filtration disks 110 therein to collect and remove contaminant particles contained in raw water RW and to filter the purified water FW. Play a role. The purified water FW filtered by the disk stacked filtration device 100 is discharged through the purified water discharge pipe 150.

As shown in FIG. 7, the disk stacked filtration apparatus 100 ′ includes a plurality of filter bodies 110a therein, so that the filtration process capacity may be improved.

The backwash tank 300 is part of the purified water (FW) is introduced and stored through the purified water discharge pipe 150, the purified water (FW) in the backwash tank 300 is later filtered by the disk stacking filtration device 100 using the reverse flow It is used in a backwashing process, which is a cleaning process for the disk 110. That is, during the backwashing process to remove the contaminated particles collected in the filtration disk 110, the purified water FW inside the backwash tank 300 is transferred along the backwashing pipe 310 by the backwash pump M-2 to allow the disk to be washed. It is supplied in the reverse direction through the purified water discharge pipe 150 of the stacked filter device (100).

Then, the purified water FW supplied to the filtration cylinder 120 in the reverse direction through the purified water discharge pipe 150 passes through the filter body 110a from the inside to the outside and pressurized member 140 by the supply pressure of the purified water FW. When the pressurization is released, the plurality of filtration discs 110 are spaced apart, and the contaminated particles collected as the purified water FW passes through the spaced spaces may be effectively washed and removed.

The air supply device 400 supplies compressed air to the disk stacked filtration device 100 through the air supply pipe 410 during the above backwashing process. The compressed air supplied in this way is mixed with the purified water (FW) performing the backwashing process and serves to improve the washing efficiency while colliding hard with the surface of the filter disc 110.

The cleaning tank 500 is a chemical removal of the contaminated particles by the purified water (FW) flowed back to the purified water (FW) passing through the backwashing tube 310 during the backwashing process, as well as chemical The removal work is also performed.

When the surface of the filter disc 110 is heavily contaminated by contaminant particles, the cleaning tank 600 performs a separate chemical cleaning process using a separate cleaning solution (CW). To this end, the cleaning tank 600 is provided with first and second cleaning pipes 610 and 620 and a cleaning liquid supply pipe 630.

The cleaning tank 600 transfers the cleaning liquid CW to the cleaning liquid supply pipe 630 through the cleaning pump M-3, and supplies the cleaning liquid CW to the disk stacked filtration apparatus 100. Then, the cleaning liquid CW, which has been cleaned for the plurality of filtering disks 110 in the disk stacking filtration device 100, is recovered through the first and second cleaning pipes 610 and 620. The cleaning process proceeds as the cleaning solution (CW) circulation operation is repeated.

3, 4, and 8 to 10, the operation of the filtration process, backwashing process and the washing process performed by the water treatment system according to a preferred embodiment of the present invention will be described separately.

In the filtration process, the raw water RW is supplied to the disk stacked filtration apparatus 100 through the raw water supply pipe 210 in the forward direction, and contaminated particles are collected on the plurality of filtration disks 110 to be filtered to generate clean purified water FW. In the backwashing process, the purified water (FW) is supplied to the disk stacked filtration apparatus 100 in the reverse direction through the purified water discharge pipe 150 to collect a large amount of contaminated particles to wash and remove the contaminated particles from the contaminated filtration disk 110. In the cleaning process, when the filter disc 110 is severely contaminated, a separate cleaning liquid CW is supplied to the disk stacked filtration apparatus 100 through the cleaning solution supply pipe 630 to chemically circulate the filter disc 110. It is a process of washing.

First, the filtration process, as shown in Figure 8, the supply pump (M-1) is operated to transfer the raw water (RW), which is the waste water to the raw water supply pipe (210). At this time, the raw water supply valve 211 is opened so that the raw water (RW) is supplied to the disk stacking filtration device 100 through the raw water supply pipe (210).

Next, the raw water RW supplied to the disk stacked filtration device 100 passes the filter body 110a from the outside to the inside of the filtration cylinder 120. At this time, the large-sized contaminated particles included in the raw water RW are passed through the first filtration unit 112 formed of a plurality of first filtration flow paths in which the raw water RW has a relatively large size. ) And the small sized contaminated particles contained in the raw water RW are passed through the second filtration unit 113 formed of a plurality of second filtration flow paths formed in a relatively small size. ) Is captured.

The raw water (RW), ie, purified water (FW), which has been cleaned by collecting various sizes of contaminated particles, is discharged through the purified water discharge pipe 150 communicating with the inside of the filter body 110a, and a part of the contaminated particles is transferred to the backwash tank 300. Is received, and the remainder is completely discharged from the water treatment system through the purified water pipe 320.

If this filtration process continues, the plurality of filtration disks 110 of the disk stacked filtration device 100 is gradually contaminated due to the collected contaminated particles.

Subsequently, when a predetermined time elapses or when the measured value of the separately installed raw water supply pressure measuring device is confirmed to be greater than or equal to a predetermined value, a supply pump is performed in order to proceed with a backwashing process for washing the plurality of contaminated filter discs 110. The operation of the M-1 is stopped, and the raw water supply valve 211 and the purified water discharge valve 151 are closed.

After that, the backwashing process is largely divided into an air backwashing process and a water backwashing process, and an air backwashing process is performed first, followed by a water backwashing process. In the air backwashing process, first, as shown in FIG. 9, while the air supply valve 411 is opened, the compressed air passes from the air supply device 400 through the air supply pipe 410 to the inside of the disk stacking filtration device 100. Is supplied. When the internal pressure of the disk stacked filtration apparatus 100 is increased by the supplied compressed air to reach a predetermined pressure, the second drain valve 171 is opened, and thus, the compressed air is exploded in the second drain pipe 170. As it is discharged through, the contaminants of the plurality of filter discs 110 are effectively detached.

This air backwashing process is a very effective desorption method for contaminant particles, and contaminants desorbed by the water backwashing process may be more effectively removed. Since such an air backwashing step imparts a considerable impact on the filter body 110a, the process cannot be used in a filtration device using an organic membrane having a weak strength as a filtration member or the filtration disk 110 of the present invention. The strength is very high, so it can be used.

Thereafter, the water backwashing process is performed as follows. First, the backwash pump (M-2) is operated to transfer the purified water (FW) contained in the backwash tank 300 to the backwashing pipe (310). At this time, the backwash valve 311 is opened so that the purified water (FW) is supplied in the reverse direction to the disk stacked filtration device 100 through the purified water discharge pipe 150 in communication with the backwashing pipe (310).

Next, the purified water FW supplied to the disk stacked filtration apparatus 100 passes through the filter body 110a from the inside to the outside. At this time, the pressurization of the pressurizing member 140 which presses the plurality of filter disks 110 tightly by the supply pressure of the purified water FW is released, and the plurality of filter disks 110 are spaced apart from each other. In this state, the purified water FW washes and removes contaminants on the surfaces of the plurality of filter discs 110 while passing through the filter body 110a from the inside.

And while the first drain valve 161 is also open, the polluted particles that have been removed and thus washed are discharged from the raw water tank 200 through the second drain pipe 170 communicating with the first drain pipe 160 and the raw water supply pipe 210. Is recovered.

In this way, the air supply valve 411 is opened even when the water backwashing process is performed, and compressed air may be supplied from the air supply device 400 to the inside of the disk stacked filtration device 100 via the air supply pipe 410. The compressed air thus supplied is mixed with the purified water (FW) and collides with the surfaces of the plurality of filter discs 110 to promote the removal of contaminants.

In addition, while the backwashing process is performed, the cleaning agent supply valve 511 is opened, and the chemical cleaning agent SM may be supplied from the cleaning tank 500 to the backwashing tube 310 via the cleaning agent supply pipe 510. The cleaner SM is mixed with the purified water FW supplied to the disk stacked filtration apparatus 100 through the backwashing tube 310, and contaminated particles collected on the surface of the filtering disk 110 in a physical manner as well as chemically. Remove it quickly and cleanly.

In a preferred embodiment of the present invention, through the air supply device 400 and the cleaning tank 500, by supplying compressed air and the cleaning agent (SM) to the disk stacked filter device 100 in a form to increase the cleaning efficiency of contaminated particles Although implemented, it is noted that such air supply device 400 and detergent tank 500 are not essential components in practicing the present invention.

On the other hand, as the above-described filtration process and backwashing process is selectively carried out alternately, the filtration operation for the raw water (RW) is carried out, the contaminant particles that are not completely removed by the backwashing process little by little on the surface of the plurality of filtration disks (110) Since it sticks, a cleaning process is performed to completely remove these contaminants.

This washing process first begins by opening all of the first, second, and third drain valves 161, 171, and 152 to discharge all of the raw water RW inside the disc stacked filter device 100. FIG.

Next, as shown in FIG. 10, all of the first, second, and third drain valves 161, 171, and 152 are closed, and the cleaning liquid supply valve 631 and the first, second cleaning valves 611, 621 are closed. The cleaning pump (M-3) is operated while the) is opened, thereby supplying the cleaning liquid CW inside the cleaning tank 600 to the inside of the disk stacked filtration apparatus 100 through the cleaning liquid supply pipe 630, and the disk stacked filtration. The cleaning liquid CW having passed through the apparatus 100 is recovered through the first and second cleaning tubes 610 and 620.

As such, the cleaning liquid CW is continuously circulated for a predetermined time in the disk stacked filtration apparatus 100 to completely remove contaminants adhering to the surface of the plurality of filtration disks 110 chemically and physically.

The cleaning process is performed for a predetermined cleaning time, and when the cleaning time has elapsed, the cleaning process is stopped, and then the backwashing process is briefly performed to completely wash the cleaning liquid CW inside the disc stacked filter device 100. After the filtration process.

Since the cleaning process as described above is not essential in implementing the water treatment system according to the preferred embodiment of the present invention, the cleaning tank 600 for implementing the cleaning process is essential in implementing the water treatment system according to the present invention. It is not a component.

As described above, according to the water treatment system provided with the filtration discs 110 and 110 'for the disc stacked filtration apparatus and the disc stacked filtration apparatus 100 according to the present invention, the filtration in which raw water RW, which is waste and waste water, is filtered out is filtered. In the process, the filter groove or the filtration protrusions forming a filtration flow path that serves as a passage through which raw water RW passes and collects contaminants contained in raw water RW, and an outer circumferential surface of the disc body 111 and the inside thereof. The first filter unit 112 and 112 'and the second filter unit 113 and 113' are respectively provided in a separate manner so that the raw water RW passes through the first filter unit 112 and 112 'and then sequentially As the filter is filtered again while passing through the two filter parts 113 and 113 ′, the filtration efficiency can be greatly improved, and a plurality of second filtration paths forming the second filter parts 113 and 113 ′ are formed in the first filter part 112. (112 ') is provided smaller than the plurality of first filtration passages, so that the raw water (RW) first passes through the first filtration section (112, 112') As large contaminants are collected and first filtered and then passed through the second filtration section 113 and 113 ′, and relatively small contaminants are collected and secondly filtered, contaminant particles of different sizes are collected in different spaces. As the large contaminant particles are collected, the filtration flow path is not closed quickly, so that the filtration performance can be maintained for a long time. In addition, since the large contaminant particles are filtered first, the second filtration flow path of the second filtration unit 113 and 113 'is not concerned. It can be formed small enough to improve the filtration performance.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical spirit of the present invention, and such modifications and variations belong to the appended claims. will be.

Description of the Related Art [0002]
100, 100 ': Disc stack filtration device 110, 110': Filtration disc
110a: filter medium 111: disk body
111-1: through hole 112, 112 ': first filtration unit
112-1, 112-1 ': First filtration home 113, 113': Second filtration
113-1, 113-1 ': Second filtration groove 120: Filtration cylinder
130: support member 140: pressure member
150: purified water discharge pipe 151: purified water discharge valve
152: third drain valve 160: first drain pipe
161: first drain valve 170: second drain pipe
171: second drain valve 200: raw water tank
210: raw water supply pipe 211: raw water supply valve
300: backwash tank 310: backwash
311: backwash valve 320: purified water pipe
400: air supply device 410: air supply pipe
411: air supply valve 500: cleaning tank
510: detergent supply pipe 511: detergent supply valve
600: cleaning tank 610: first cleaning pipe
611: first cleaning valve 620: second cleaning pipe
621: second cleaning valve 630: cleaning liquid supply pipe
631: cleaning liquid supply valve M-1: supply pump
M-2: Backwash Pump M-3: Washing Pump
RW: Raw Water FW: Purified Water
CW: Cleaning liquid SM: Cleaning agent

Claims (10)

In the filtration disk, a plurality of layers are stacked inside the filtration cylinder to form a filtration body, and the filtration disc filters the contaminated particles of the liquid passing through the filtration body by water pressure.
A disk body provided in a plate shape in which a through hole is formed in a central portion thereof;
A first filtration part comprising a plurality of first filtration flow paths formed by a plurality of first filtration grooves provided on an outer circumference of the disc body; And
By including; a second filtration unit consisting of a plurality of second filtration passages formed in the plurality of second filtration grooves provided inside the first filtration unit in the disk body,
And the liquid is filtered again as the liquid passes through the first filter part and subsequently passes through the second filter part. In the filtration disk, a plurality of layers are stacked inside the filtration cylinder to form a filtration body, and the filtration disc filters the contaminated particles of the liquid passing through the filtration body by water pressure.
A disk body provided in a plate shape in which a through hole is formed in a central portion thereof;
A first filtration part including a plurality of first filtration flow paths formed as a space between the plurality of first filtration protrusions provided on an outer circumference of the disc body; And
By including; a second filtration unit consisting of a plurality of second filtration passages formed in the space between the plurality of second filtration protrusions provided on the inner side of the first filtration portion,
And the liquid is filtered again as the liquid passes through the first filter part and subsequently passes through the second filter part. The method according to claim 1 or 2,
The second filtration path,
Filter disk for the disk stack type filter device, characterized in that formed smaller than the first filtration passage. The method according to claim 1 or 2,
The first filter part and the second filter part,
Filtration disk for disk stack type filter device, characterized in that provided in a closed-loop (closed-loop) shape. The method of claim 4, wherein
The closed loop shape is,
A filtration disc for a disc stacked filter device having a repetitive bending pattern or bending pattern. The method of claim 5,
The bending pattern is,
Filtration disk for a disk laminated filter device characterized in that the wavy pattern. The method of claim 5,
The bending pattern is,
Filtration disk for disk stack type filter device, characterized in that the sawtooth pattern. The method according to claim 1 or 2,
A space between the plurality of third filtration protrusions formed on the inner side of the second filtration part including the plurality of second filtration passages on the disk body or provided on the inner side of the second filtration part At least one third filtration part each consisting of a plurality of third filtration flow paths formed in the plurality;
Filtration disk for the disk laminated filter device further comprising a. The method of claim 8,
The third filtration flow path,
Filter disk for the disk stack type filter device, characterized in that formed smaller than the second filtration passage. Raw water tank into which raw water, which is waste water, is introduced or discharged;
A filtration cylinder, a plurality of the filtration disks according to claim 1 or 2 so as to collect contaminated particles contained in the raw water are stacked in the filtration cylinder, a plurality of the filtration body to maintain the stacked form The raw water introduced into the filtration cylinder through a support member for supporting a filtration disk, a pressurizing member for pressurizing the plurality of filtration disks in close contact with each other, and a raw water supply pipe connected to the raw water tank, and the filter body from the outside to the inside. A disk stacked filtration device including a purified water discharge pipe through which filtered purified water is discharged;
A backwash tank in which a portion of the purified water is introduced and stored through the purified water discharge pipe; And
And an air supply device for supplying compressed air through an air supply pipe inside the filtration cylinder.
Filtration process in which the raw water flows into the disk stacked filtration apparatus and the purified water is discharged to the purified water discharge pipe, and explosively supplied into the filtration cylinder at a high pressure state of the compressed air through the instantaneous opening of the air supply pipe. An air backwashing process in which a filtration disc is washed, and the purified water stored in the backwash tank is supplied to the disk stacked filtration apparatus through a backwashing pipe connected to the purified water discharge pipe, and the pressurizing member with respect to the plurality of the filtration discs is supplied by the supply pressure thereof. The pressure treatment of the disk stack type filter apparatus characterized in that the pressure is released and the purified water flows back in the disk stacked filter device to selectively perform a water backwashing process in which the plurality of filter disks are washed.

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