KR101476890B1 - Multiple pore control fiber filter - Google Patents

Abstract

The present invention relates to a fiber filter having a multi-layer filtration layer, and more particularly, to a filtration section of a fiber filter using a plurality of filtration layers using fiber filters having different functions and gaps, And which does not require an internal strainer.

Description

{MULTIPLE PORE CONTROL FIBER FILTER}

The present invention relates to a fiber filter having a multi-layer filtration layer, and more particularly, to a filtration section of a fiber filter using a plurality of filtration layers using fiber filters having different functions and gaps, And does not require an internal strainer.

Generally, a filter is a device for draining clean treated water by filtering the contaminated raw water with a filter, and it is becoming larger and larger for filtration of a large river and filtration of a factory wastewater.

As the filter used herein, a pore-controlling fiber filter (PCF filter, hereinafter referred to as "fiber filter") is exemplified. In the fiber filter, bundles of fiber yarns having fine filaments are bundled, It is used as a filter material, which is called a fiber filter material. The fibrous filter material has a merit that the pores formed by the filament are easily controlled by physical control, so that the filtration performance is excellent, and the filter is easy to clean and has a long life.

Particularly, it has been proved that the removal efficiency of SS and BOD by particle size is superior to other filtration methods.

In the form of the fiber filter, the fiber filter material is twisted around a strainer to form micro voids, or the fiber filter material uniformly disposed around the strainer is pulled upward and pressed on the strainer side to form micro voids There is a type to filter.

However, since such a conventional fiber filter is required to have a strainer essentially inside the fiber filter media, there is a problem that it is difficult to process a large capacity due to the limitation of the size of the strainer, and the filtration equipment becomes complicated.

There is also a problem in that there is a limit to the quality of the raw water that can be treated by the type of fiber filter material used and the pores.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a method of fabricating a fiber filter, The present invention provides a fiber filter which does not require an inner strainer by allowing the compressed fiber filter material itself to become a inner tube.

It is another object of the present invention to provide a fiber filter capable of ensuring stable performance in various water quality by constituting a filtration layer of a fiber filter with a plurality of filtration layers by using a fiber filter material having different performances and pores.

According to an aspect of the present invention, there is provided a water treatment system comprising: a cylindrical filtration tube communicating with a raw water inflow pipe and a reverse water discharge pipe at an upper side and a process water discharge pipe and an air inflow pipe at a lower side; And an upper inner shrink tightening ring, a middle outer tightening tightening ring and a lower inner tightening tightening ring are provided between the upper fiber inner tube forming plate and the lower fiber inner tube forming plate, A filtration means having a plurality of filtration layers formed by packing; A driving unit including a cylinder fixed by a support at an upper portion of the outside of the filtration cylinder and a piston driven by the cylinder and pulling up the fiber filter material by pulling up; An upper filter fixing plate fixed to the piston at an upper portion of the filtration unit and receiving a pulling motion of the piston and having a fixing portion in a circumferential direction from a center within a radius smaller than a radius of the upper fiber inner tube forming plate; And a lower filter fixed to a lower portion of the filtration means and having a fixing portion in a circumferential direction from a center within a radius range smaller than the radius of the lower fiber inner tube forming plate.

In the multi-layered fiber filter according to an embodiment of the present invention, the filtration means includes a first upper fiber inner tube forming plate, a first inner shrink tightening ring at the upper end, a first outer expansion tightening ring at the upper end, An outer first filter layer formed of a first tightening ring, a first lower-fiber inner-tube forming plate, and a first fiber material surrounding the first lower-fiber inner-tube forming plate; A second inner shrink tightening ring at the upper end, a second inner shrink tightening ring at the upper end, a second outer shrink tightening ring at the lower end, a second inner shrink tightening ring at the lower end, a second lower inner tube forming plate, An intermediate second filtration layer made of a fibrous filter material; A third inner shrink tightening ring at the upper end, a third inner shrink tightening ring at the upper end, a third outer shrink tightening ring at the upper end, a third inner shrink tightening ring at the lower end, a third lower inner tube forming plate, And the innermost third filtration layer made of a fibrous filter material.

In the multi-layered fiber filter according to one embodiment of the present invention, the filtration means is composed of two filtration layers: an outer first filtration layer and an inner second filtration layer.

In the duplex fiber filter according to an embodiment of the present invention, the diameter of the outer expansion thrust ring is equal to or greater than the diameter of the inner shrinkage thrust ring.

In the multi-layered fiber filter according to one embodiment of the present invention, the fibrous filter material is arranged along the inner circumferential surface of the inner shrinkage tightening ring and arranged along the outer circumferential surface of the outer expansion tightening ring, thereby being arranged in a zigzag fashion in the upward and downward directions .

In the multi-layered fiber filter according to one embodiment of the present invention, the fiber filter media forming the plurality of filter layers are characterized in that their functions and pores are different from each other.

In the multilayer fiber filter according to an embodiment of the present invention, the inner shrink tightening ring has a micro-round bend formed on the inner circumferential surface, and the outer expanding tightening ring has a micro-round bend on the outer circumferential surface.

Another aspect of the present invention is the fiber filter as described above, wherein each of the fiber media constituting the plurality of filter layers is composed of a plurality of fiber bundles, the innermost fiber bundle is a left diagonal line, The fiber bundle is vertically connected by the right diagonal line and the outer fiber bundle is vertically connected by the left diagonal line.

According to the multilayer fiber filter of the present invention, it is possible to fabricate a fiber filter that does not require an inner strainer by using standardized upper and lower fiber inner tube forming plates and rings using metal, engineering plastic, etc., There is a saving effect.

Further, according to the multi-layered fiber filter of the present invention, the filtration layer of the fiber filter is composed of a plurality of filtration layers using fiber filters having different performances and pores, thereby ensuring stable performance in various water quality, The efficiency of the two-stage filtration can be achieved without using the two-stage filtration.

1 is a cross-sectional view of a multi-layer fiber filter according to an embodiment of the present invention.
2 is a perspective view of filtration means in a multi-layer fiber filter according to an embodiment of the present invention.
Figure 3 is an exploded perspective view of the filtration means according to Figure 2;
Fig. 4 is a perspective view showing the internal structure of the filtration means according to Fig. 2;
5 is a view showing a state in which the fiber filter material of each filtration layer is fixed to the lower fiber inner wall forming plate.
6 is a perspective view of a multilayer fiber filter according to another embodiment of the present invention.
7 is an explanatory view showing a method for fixing a fiber filter material of the fiber filter according to FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known general functions or configurations will be omitted.

1 is a longitudinal cross-sectional view of a multi-layered fiber filter according to an embodiment of the present invention, Fig. 2 is a perspective view of filtration means according to the present invention, Fig. 3 is a cutaway perspective view of the filtration means, Fig. 2 is a perspective view showing the internal structure of filtration means.

1 to 4, the multi-layer fiber filter according to the present invention includes a filtration unit 200 including a filtration cylinder 100 and a plurality of filtration layers A, B, and C, a cylinder 310, and a piston 320 And a lower filter fixing plate 500. The upper filter fixing plate 400 and the lower filter fixing plate 500 are formed of a metal plate,

As shown in FIG. 1, a raw water inlet pipe 10 having a raw water valve 11 for on / off control of raw water inflow is disposed at the upper end of the filtration cylinder 100 of the present invention and a reverse water discharge valve 21 is connected to the backwash drain pipe 20. The raw water inflow pipe 10 and the backwash water discharge pipe 20 may be independently connected in parallel on the upper side of the filtration tube 100 regardless of whether the raw water inflow pipe 10 and the backwash discharge pipe 20 are connected to each other by a single path as shown in FIG. It must have an external path which is independently controlled by the raw water valve 11 and the reverse water drain valve 21.

That is, the raw water inlet pipe 10 and the backwatering water discharge pipe 20 are formed on the upper side of the raw water receiving tube 100 in the same manner, but the raw water valve 11 and the reverse water drain valve 21 The path is selected by driving.

The lower side of the filtration tube 100 communicates with the air inflow pipe 40 and the lower air inflow pipe 40 is also controlled to be on and off by driving the air supply valve 41.

The filtration means 200 of the present invention is disposed inside the filtration tube 100 and includes an upper inner shrink tightening ring 220 between the upper fiber inner tubular plate 210 and the lower fiber inner tubular plate 250, An outer expansion tightening ring 230 and an inner shrinkage tightening ring 240 at the lower end are provided and surrounded by the fiber filter media 260. At this time, the fiber filter media 260 are disposed along the inner circumferential surface of the inner shrinking tightening rings 220 and 240 and arranged along the outer circumferential surface of the outer expanding tightening ring 230, thereby being arranged in a zigzag fashion in the upward and downward directions. Accordingly, when the fiber filter media 260 is pulled up and pressed, the fiber filter media 260 itself acts as a inner barrel, so that the inner strainer of the fiber filter is not required.

In the duplex fiber filter according to an embodiment of the present invention, the filtration means 200 includes a first upper fiber inner tube forming plate 210a, a first inner shrink tightening ring 220a at the upper end, a first outer inflation The first outer filtration layer (outer filtration layer) 230a, which is composed of the tightening ring 230a, the first inner constriction tightening ring 240a at the lower end, the first lower fiber inner tube forming plate 250a, and the first fiber filter media 260a surrounding the first lower fiber inner tube forming plate 250a A); The second upper internal tightening ring 230b at the lower end, the second internal shrink tightening ring 240b at the lower end, the second upper internal tightening ring 220b at the upper end, A second filtration layer (B) on the intermediate side formed of a fibrous inner-tube forming plate (250b) and a second fibrous filter material (260b) surrounding them; The third upper internal tightening ring 210c, the upper third internal tightening fastening ring 220c, the third external tightening fastening ring 230c of the stop, the third internal tightening fastening ring 240c of the lower end, And a third inner filtration layer C composed of a fibrous inner container forming plate 250c and a third fibrous filter media 260c surrounding the first and second filter media.

In the multilayer fiber filter according to an embodiment of the present invention, the filtration means 200 may be composed of two filtration layers of an outer first filtration layer (A) and an inner second filtration layer (B) have.

At this time, it is preferable that each of the fiber filter media 260a, 260b, and 260c forming the plurality of filtration layers A, B, and C has different materials and voids. For example, the first fiber filter media 260a is made of PP fiber to remove the suspended solid material SS, and the second fiber filter media 260b is made of a material that removes ionic substances such as hardness and nitrate nitrogen Conductive carbon fiber or the like. When conductive carbon fiber is used as a filter material, it has a device for applying an optimum charge capable of binding with an ionic substance in water, so that it is possible to attach and detach it when adsorption and charge load are stopped do. Accordingly, the multi-layer fiber filter according to the present invention can ensure stable performance even in various water quality, and the efficiency of the two-stage filtration can be achieved without using the two-stage filtration of the high turbidity raw water.

5 is a view showing a state in which the fiber filter media 260a, b and c of the filtration layers A, B and C are fixed to the lower filter media fixing plates 500a, b and c. As shown in FIG. 5, the first fiber filter media 260a is fixed to the first lower filter media fixing plate 500a, the second fiber filter media 260b is fixed to the second lower filter media fixing plate 500b, The filter medium 260c is fixed to the third lower filter medium fixing plate 500c. The upper portions of the respective filtration layers A, B, and C of the fiber filter media 260a, b, and c are fixed to the upper filter media fixing plates 400a, 400b, and 400c in the same manner. Thus, the plurality of filtration layers A, B, and C can function as separate filtration layers.

Particularly, the fiber filter media 260a, 260b and 260c of the respective filtration layers A, B and C are formed of a plurality of fiber bundle layers so that the filtration layers A, B and C are tightly sealed, It can act as an internal strainer.

The diameter of each of the external expansion thrust rings 230a, b, c may be greater than or equal to the diameter of the corresponding internal shrink tightening rings 220a, b, c, 240a, b, c. Each of the lower fiber inner cylinder forming plates 250a, 250b, and 250c has a central hole formed therein and is connected to the process water pipe 30.

According to an embodiment of the present invention, the inner circumferential surface of each of the inner constrictive tightening rings 220a, b, c, 240a, b, and c and the fiber filter media 260 a, b, c) By forming a micro-rounded bend in the contact portion, it is possible to prevent the fibers from being sagged during filtration and to suppress the fiber widening phenomenon when the drug is injected.

The inner shrink tightening rings 220 and 240 and the outer expanding tightening ring 230 are coupled to the shaft 270 by a coupling means such as a bolt and are adjustable in the upward and downward directions. In addition, the inner shrink tightening rings 220 and 240 and the outer expanding tightening ring 230 can be additionally installed, so that the filtration means 200 can be formed in a plurality of stages. By this, it is possible to increase the sales and value-added by selling one type including piping, because it is easy to handle large volume by adjusting the processing capacity of diameter and single number without multi type and can standardize by diameter and number of steps (filter, piping, etc.).

FIG. 6 is a perspective view illustrating a filtration unit 200 of a fiber filter according to another embodiment of the present invention, and FIG. 7 illustrates a method of fastening the fiber filter media 260 in the filtration unit 200 of FIG. 6 to 7, the respective fiber media 260 a, b, and c of the respective filtration layers A, B, and C are, for example, (260a, b, c) are pulled upwards by connecting the left diagonal line and the middle fiber bundle with the right diagonal line and the outer fiber bundle with the left diagonal line. , c) are crossed at an intersection. That is, the bundle of the innermost fiber yarn is fixed in the order of 1-6, 2-7, 3-8, and so on, and the middle bundle of fiber yarns are fixed in the order of 1'-8 ', 2'-7' 5 'and so on, and the bundle of outer fibers is fixed in the order of 1' '- 6' ', 2' '- 7' ', 3' '- 8' ', The fibrous filter media 260a, b, and c of the respective filtration layers A, B, and C are twisted at an intersection so that performance can be improved as compared with a fiber filter having a single layer in one direction, It is possible to suppress the fiber splitting phenomenon caused by injection or other reasons.

The pulling means 300 includes a cylinder 310 and a piston 320. The cylinder 310 is fixed to the upper portion of the outside of the filtration cylinder 100 by a support base 330. The movement of the piston 320 by the cylinder 310 may be performed by a simple linear motion, or alternatively by a rotary cylinder in which linear motion and rotation are similar.

The upper filter fixing plate 400 of the present invention is a portion which is fixed to the piston 320 at an upper end of the upper portion of the filtration means 200 in the filtration tube 100 and receives the pulling motion of the piston 320, The lower filter medium fixing plate 500 is a portion fixed to the outside of the bottom of the filtration means 200 inside the filtration tube 100.

The upper and lower ends of the fiber filter media 260 are fixed to the upper filter media 400 and the lower filter media 500 as shown in Figure 5 so that the fiber filter media 260 itself And forms a filtration gap while serving as a inner tube. On the other hand, the spiral radial fixing units 410 and 510 are formed on the fixing plates 400 and 500 of the upper and lower filter media to fix the fiber filter media 260. B and c in the spiral direction within the radial range smaller than the radius of each of the upper fiber inner wall forming plates 210a, b and c corresponding to the upper filter medium fixing plates 400a, c) are provided in the lower filter medium fixing plates 500a, 500b, and 500c, respectively, and the lower filter medium fixing plates 500a, (510a, b, c) are provided. Thus, when the piston 310 pulls up the upper filter media 400a, 400b, and 400c, the fiber filter media 260a, b, and c are pressed inward while being compressed.

1, an air distribution plate 42 for dispersing and distributing the air introduced through the air inlet pipe 40 to the fiber filter media 260 is formed on the lower side of the lower filter medium fixing plate 500 . The air distribution plate 42 is used for uniformly dispersing the air to be blown into the fiber filter media 260. The air distribution plate 42 may have various shapes such as a plurality of diaphragms and a plurality of through holes.

Hereinafter, the operation of the multilayer fiber filter according to the present invention will be described.

The raw water valve 11 is closed and the backwash water drain valve 21 and the air supply valve 41 are closed so that the raw water inflow pipe 10, the filtration means 200, the process water drainage pipe 40, When the path is formed, raw water flows into the filter bag 100.

The introduced raw water is filtered at the fiber filter media 260 and converted into treated water and moved into the filtration means 200 and drained through the treated water drainage pipe 30 at the bottom of the filtration means 200. At this time, the filtering ability of the fiber filter media 260 is determined by the pores formed by the fiber filter media 260, and the pores are formed by the tensile tension of the fiber filter media 260.

In the present invention, the tensile tension of the fiber filter media 260 is formed by the movement of the piston 320 of the pulling means 300. That is, when the piston 320 rises, the upper filter fixing plate 400 fixed to the piston 320 pulls the fiber filter media 260 to generate a tensile tension, and the tensile tension of the fiber filter media 260 is increased Thereby forming a filtration gap.

Hereinafter, the backwashing process of the fiber filter according to the present invention will be described.

The raw water valve 11 of the duplex fiber filter is closed and the backwash water drain valve 21 is opened to form a backwash path composed of the treatment water drain pipe 30, the filtration means 200, . The water introduced through the drain pipe 30 is blown into the fiber filter media 260 through the filtration means 200 to wash the fiber filter media 260 and clean the fiber filter media 260 And is discharged to the outside through the reverse water discharge pipe 20.

When the backwashing is performed, the piston 320 of the driving means 300 is lowered to remove the tension of the fiber filter media 260, whereby the fiber filter media 260 can be easily washed into the water jetted from the filtration means 200 It is vibrated, rubbed and cleaned.

At this time, air is blown from the bottom of the fiber filter media 260 through the air inlet pipe 40 (the air distribution plate 42 is provided on the bottom to uniformly spray air on the fiber filter media) Backlash can be effectively achieved. Particularly, in the multi-layered fiber filter according to the present invention, since there is no strainer in the inside, the free activity of the fiber filter media 260 is increased, and the backwashing efficiency can be greatly improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. This will be obvious. For example, in the above-described embodiment, the filtration layer is exemplified by three layers, but it is also possible to provide more filtration layers as required.

100: Filter case
200: filtration means
210: Upper fiber inner tube forming plate
220: Upper internal shrinkage tightening ring
230: External expansion tightening ring
240: Lower inner shrinkage tightening ring
250: Lower fiber inner wall forming plate
260: Axis
300: pulling means
310: cylinder
320: piston
400: upper filter plate
500: Lower filter media fixing plate

Claims (8)

The upper side communicates with the raw water inflow pipe and the reverse water discharge pipe, and the lower side communicates with the treated water discharge pipe and the air inflow pipe;
And an upper inner shrink tightening ring, a middle outer tightening tightening ring and a lower inner tightening tightening ring are provided between the upper fiber inner tube forming plate and the lower fiber inner tube forming plate, A filtration means comprising a plurality of filtration layers formed by packing;
A cylinder fixed by a support at an upper portion of the outside of the filtration cylinder; and driving means driven by the cylinder and including a piston which pulls up the fiber filter material by pulling up the fiber filter media by pulling up;
An upper filter fixing plate fixed to the piston at an upper portion of the filtration unit and receiving a pulling motion of the piston and having a fixing portion in a circumferential direction from a center within a radius smaller than a radius of the upper fiber inner tube forming plate; And
And a lower filter fixing plate fixed to a lower portion of the filtration means and provided with fixing portions in a circumferential direction from a center within a radius range smaller than a radius of the lower fiber inner tube forming plate,
The filtration means includes a first upper fiber inner tube forming plate, a first inner shrink tightening ring at the top, a first outer expansion tightening ring at the lower end, a first inner shrink tightening ring at the lower end, a first lower fiber inner tube forming plate, An outer first filtration layer formed of a first fibrous filter medium surrounding the first filter medium; And
A second inner shrink tightening ring at the upper end, a second inner shrink tightening ring at the upper end, a second outer shrink tightening ring at the lower end, a second inner shrink tightening ring at the lower end, a second lower inner tube forming plate, And a second filter layer including an inner second filter layer made of a fiber filter material. delete 2. The apparatus of claim 1, wherein the filtration means comprises a third upper fiber inner tube forming plate, a third inner shrink tightening ring at the top, a third outer expansion tightening ring at the stop, a third inner shrink tightening ring at the lower end, Wherein the filter layer comprises three filtration layers further comprising an innermost third filtration layer comprising a forming plate and a third fiber media surrounding the first and second filter media. The multilayer void control fiber filter according to claim 1, wherein the diameter of the outer expansion throttling ring is greater than or equal to the diameter of the inner shrink throttling ring. The multilayer void control fiber filter according to claim 1, wherein the fibrous filter material is disposed along the inner circumferential surface of the inner shrinking tightening ring and disposed along the outer circumferential surface of the outer expansion tightening ring so as to be arranged in a zigzag fashion in the upward and downward directions. The multilayered void control fiber filter according to claim 1, wherein the fiber filter media forming the plurality of filter layers have different functions and voids, respectively. The multilayer void control fiber filter according to claim 1, wherein the inner shrink tightening ring has a micro-round bend formed on an inner peripheral surface thereof, and the outer expansion tightening ring has a micro-round bend on an outer peripheral surface thereof. The filter material according to any one of claims 1 and 3 to 7, wherein each fiber material constituting the plurality of filter layers is composed of a plurality of fiber bundles, the innermost fiber bundle is a left diagonal line, Wherein the fiber bundle is connected to the right diagonal line and the outer fiber bundle is vertically connected to the left diagonal line so that when the fiber filter material is pulled to the upper side, the fiber filter material is twisted at an intersection without rotating mechanism.

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