KR101629256B1

KR101629256B1 - Back washing efficiency improving type filtering equipment and control method thereof

Info

Publication number: KR101629256B1
Application number: KR1020150101918A
Authority: KR
Inventors: 이창수; 홍필현
Original assignee: 협진엘엔씨 주식회사
Priority date: 2015-07-17
Filing date: 2015-07-17
Publication date: 2016-06-21

Abstract

The present invention relates to a backwashing efficiency-enhanced filtering apparatus and a control method for the same. The apparatus includes: a filtration tank which has first and second pipes for passage of raw water containing a suspended solid material; a filter medium layer which is accommodated in the filtration tank for raw water passage and adsorbs and filters the suspended solid material contained in the raw water; a pipe unit which supplies the raw water to the filtration tank through the first pipe or supplies backwash water to the filtration tank through the second pipe; and a vibration unit which supplies vibration to the filter medium layer so that the suspended solid material is separated from the filter medium layer. According to the present invention, two pre-treatment steps are carried out so that the suspended solid material attached to the filter medium is sufficiently separated before a backwash mode. The method of the present invention also includes: a first step of separating the suspended solid material from the filter medium by performing water and air bubble mixing through a nozzle on the loosely attached suspended solid material and performing high-pressure injection; a second step of separating the micro suspended solid material by providing vibration for a filtering agent firmly attached to the filter medium; and a third step of discharging the suspended solid material sufficiently separated through the first and second steps to the outside from a filtering machine.

Description

TECHNICAL FIELD [0001] The present invention relates to a backwashing efficiency enhancement type filtration apparatus and a control method thereof. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backwashing efficiency enhancement type filtration apparatus and a control method thereof. More particularly, the present invention relates to a backwashing efficiency enhancement type filtration apparatus and a control method thereof, And a method of controlling the same.

In general, the filtration process is a process of introducing raw water containing suspended solids into a filtration device to discharge clean treated water from which suspended solids have been removed. The suspended solids in the raw water are sieved into the pores in the filtration layer of the filtration device, It is a process of catching detained by complex mechanisms such as inertial collision, blocking, adsorption, and aggregation, and discharging only clean water as treated water.

When the filtration process is continued, the pores in the filtration layer are gradually filled with suspended substances and the filtration resistance is increased, and the filtration process can no longer be continued. In this case, clean water and air are injected, A washing process is required to exclude the water-soluble polymer.

Suspended solids (SS) are indicators of the quality of polluted water and are sometimes referred to as suspended solids (suspended solids).

Urban wastewater ㅇ Factory wastewater contains organic and inorganic solids in suspended state. When it is discharged to natural waters such as rivers, oceans, oceans, etc., it increases the turbidity of water and defects the appearance. Among them, Such as dissolved oxygen, to reduce the pollution of natural water quality.

On the other hand, the filtration process (filtration process of effluent water) of the suspended material for a continuous water stream requiring a large amount of water treatment is classified into a transverse continuous gravity type, a downward continuous gravity type or a downward continuous pressure type.

The transverse continuous gravity type is an aqua disk filter (American type) which uses a carpet type fiber filter cloth to filter raw water into a tank or a water tank by a gravity-induced low-pressure water head method, and a variable- There is a micro disk filter (Swedish type) in which the raw water passes through the fine mesh from the inside to the outside and is filtered.

In the case of the transverse continuous gravity type, there is an advantage in that the treatment water quality is good, the installation space is small, the required area is small, and the facilities are manufactured for each unit device and the maintenance is easy. However, Reducing the number of revolutions of the rotating drum or reducing the frequency of cleaning the disk increases the filtration efficiency but decreases the processing capacity and the life of the filter element caused by the high pressure in the washing of each disk is shortened, There is a disadvantage that the operation is stopped and a full drainage is required.

The downward continuous gravity type gravity type filter has gravity type filter paper (American type, French type) which flows the raw water down to the upper portion of the filter material layer, passes through the filter material layer downward, and then flows out to the lower water collecting device. , And the lifetime of the filter media is about one year to about five years, depending on the type of filter medium.

The gravity type filter paper has a merit that it does not clog filter material caused by MUD BALL and it can be filtered under natural stream because there is little loss of head. However, since the area is very large and the initial investment cost is high, And the amount of backwashing and backwashing flow affect the conveying load. Above all, since the capacity of the filter media (sand) is large, the exchange is very troublesome, and the operation is stopped for washing the filter and the filtration tank must be drained entirely. .

Therefore, research and development on water treatment filtration of a large quantity of continuous water, that is, discharged water, still has problems to be improved.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Registration No. 10-0476851 (published on Jul. 03, 2004, entitled " Gravity type fiber filter).

Since the filter according to the prior art does not have a separate technical structure for removing the suspended solid matter accumulated in the filter material layer, the suspended solid material accumulated in the filter material layer can not be easily separated when the backwashing process proceeds, And the amount of washing water required to remove the suspended solids from the backwash layer is increased to make it difficult to reduce the amount of washing water used.

In addition, according to the related art, since the filter can not effectively remove the suspended solids accumulated in the filter material layer, the suspended solid material binds to each other to cake the filter material layer, and the cake- There is a problem that a channeling shape is formed in which the flow rate of washing water passing through the filtration area of the reduced filter medium layer is increased more than necessary and the filtration efficiency is lowered.

According to the above-described problems, the filter according to the related art can not extend the lifetime of the filter material layer, and the time and cost required for the replacement of the filter material layer can not be reduced.

Therefore, there is a need for improvement.

An object of the present invention is to provide a backwashing efficiency enhancement type filtration apparatus and a control method thereof capable of performing a backwash process after separating suspended solids accumulated in a filter medium layer from a filter medium layer before a backwashing process proceeds.

The present invention relates to a filtration tank having a first pipe and a second pipe so as to allow raw water containing a suspended solid material to pass therethrough; A filter medium which is stored in the filtration tank to allow raw water to pass therethrough and adsorbs and filters the suspended solid material contained in the raw water; A piping unit for supplying raw water to the filtration tank through the first pipe or supplying reverse water to the filtration tank through the second pipe; And a vibration part for supplying vibration to the filter material layer so that the suspended solid material is separated from the filter material layer.

The vibrating part of the present invention may further include: a seating block provided in the filtration tank; And a vibration motor installed in the seating block and generating vibration when power is supplied.

In addition, the present invention is further characterized by a vibration transmission unit provided in the filtration tank to transmit the vibration provided from the vibration unit to the inside of the filter material layer.

Further, the vibration transmitting portion of the present invention may include: a vibrating plate provided in the filtration tank to be impregnated into the filter material layer and spaced from the filtration tank; And a vibration supporter installed between the filtration tank and the vibration plate.

The present invention further includes a vortex portion for spraying high-pressure air and washing water to the filter material layer to separate the suspended solid material from the filter material layer.

The vortex portion of the present invention may further include: a nozzle installed in the filtration tank and facing the filter media layer; And a washing pump for feeding wash water to the nozzle side.

Further, the vortex portion of the present invention further includes an orifice portion provided between the cleaning pump and the nozzle, for introducing air to supply high-pressure air to the cleaning water.

In addition, the present invention provides a method for controlling a filtration system, comprising the steps of: (a) starting filtration normal mode in which raw water containing a suspended solid material is supplied to a filtration tank having a first pipe and a second pipe, (b) determining whether a cleaning operation of the filtration apparatus is inputted through the operation unit; (c) blocking the supply of the raw water when the cleaning operation is input to the operation unit, supplying power to the vortex unit installed in the filtration tank to generate vortex and bubbles in the filter medium layer by the high-pressure cleaning water; (d) determining whether a first set time has elapsed when vortices and bubbles are generated in the filter material layer; (e) supplying power to the vibration unit installed in the filtration tank when the first set time has elapsed, and transmitting vibration to the filter material layer provided in the filtration tank to separate the suspended solid material from the filter material layer; (f) determining whether a second set time has elapsed when a vibration is transmitted to the media layer; (g) turning off power to the vibration unit when a second set time has elapsed, and supplying reverse osmosis water to the discharge surface side of the filter material layer through the piping portion through the second piping; (h) determining whether a third preset time has elapsed when backwash water is supplied to the filter material layer; (i) stopping the reverse water supply when the third set time has elapsed; (j) proceeding to a rinsing mode in which the washing water is supplied to the filter material layer through the first pipe when the reverse water supply is stopped; (k) determining whether a fourth set time has elapsed when the rinse mode is started; And (l) stopping the supply of the wash water when the fourth set time has elapsed.

In the backwashing efficiency enhancement type filter device according to the present invention, the vibration generated from the vibration part is transmitted to the inside of the filtration tank along the vibration transmission part. Therefore, before the backwashing process, vibration is transmitted to the filtering material layer, So that the suspended solids separated from the filter medium layer during the backwashing process can be discharged to the outside of the filtration tank.

Further, in the control method of the backwashing efficiency enhancement type filtration apparatus according to the present invention, when a cleaning operation is inputted, power is supplied to the vibration power unit to provide vibration to the inside of the filtration tank, Since the backwashing process in which the backwash water is supplied after the operation is stopped, the suspended solids can be easily separated from the filter medium layer and discharged to the outside of the filtration tank. This cleaning operation can prolong the life of the filter media, There is an advantage that it is possible to save time and cost.

FIG. 1 is a configuration diagram illustrating a backwash efficiency enhancement type filtration apparatus according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a mounting structure of a vibration unit and a vibration transmission unit of a backwash efficiency enhancing type filtration apparatus according to an embodiment of the present invention.
FIG. 3 is a configuration diagram illustrating a vortex flow of a backwash efficiency-enhancing filtration apparatus according to an embodiment of the present invention.
4 is a block diagram illustrating a backwash efficiency enhancement type filtration apparatus according to an embodiment of the present invention.
5 is a flowchart showing a control method of the backwash efficiency enhancement type filtration apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a schematic view illustrating a backwash efficiency enhancing type filtration apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view of a vibration absorbing efficiency enhancing type filtration apparatus according to an embodiment of the present invention, FIG. 3 is a configuration diagram illustrating the vortex flow of the backwash efficiency enhancement type filtration apparatus according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view of the backwash efficiency enhancement type filtration apparatus according to an embodiment of the present invention. Fig.

1 to 4, the backwash efficiency enhancement type filtration apparatus according to an embodiment of the present invention includes a first pipe 18 and a second pipe 16 installed to allow raw water containing a suspended solid material to pass therethrough. A filtration tank 10 through which the raw water is passed and a filter medium 30 which is stored in the filtration tank 10 and adsorbs and filters the suspended solid material contained in the raw water, A pipe portion for supplying raw water to the filtration tank 10 through the second pipe 16 and supplying the reverse water to the filtration tank 10; And a vibrating part 50 which vibrates.

The lower end of the filter medium layer 30 is supported by a filtering net installed at the lower portion of the filtration tank 10 and the lower end of the filtration tank 10 is connected to the filtration tank 10. [ A first pipe 18 for guiding the raw water to the inside of the filtration tank 10 is provided in the upper part of the filtration tank 10 and raw water having passed through the filter medium layer 30 is discharged to the outside of the filtration tank 10 The second pipe 16 is provided.

Therefore, raw water flowing into the filtration tank 10 through the first pipe 18 passes through the filter medium layer 30 and the suspended solid material is filtered. The raw water having passed through the filter medium layer 30 flows into the second pipe 16 to the outside of the filtration tank 10.

As the filtration process proceeds for a long period of time, the cross-sectional area of voids formed in the filter medium layer 30 is reduced by the suspended solids accumulating in the filter medium layer 30, and the water yield of the raw water is lowered.

In particular, when the filtration device is installed in the swimming pool, the raw water is collected so that the raw water discharged from the swimming pool can be recycled through the filtration device. At this time, when the filtration rate of the filter medium layer 30 becomes lower than the reference value The discharge amount of the raw water discharged from the pool is reduced, and the contamination of the water that has been dewatered in the pool can not be prevented.

Accordingly, the operator inputs the cleaning operation through the operation unit 80. At this time, the vibration is transmitted to the inside of the filtration tank 10 while the power is applied to the vibration unit 50, The suspended solids can be separated from the suspended solid material.

The piping unit includes a water supply pipe 12 to which raw water is supplied and a circulation pipe 14 for guiding the filtered water so that the raw water supplied to the filtration tank 10 through the water supply pipe 12 is discharged and circulated through the filter medium layer 30, A drain pipe 19 which is discharged to the outside of the filtration tank 10 after the backwash water supplied along the second pipe 16 passes through the filter medium layer 30 and the drain pipe 19 connected to the circulation pipe 14 and the drain pipe 19 A second connection pipe 13 connecting the water supply pipe 12 and the first pipe 18 and a second connection pipe 13 connecting the water supply pipe 12 and the first connection pipe 13 and the second pipe 16 and the circulation pipe 14 and a third connection pipe 15 connecting the first pipe 18 and the second connection pipe 11 to the drain pipe 19 and the first connection pipe 11 A first valve 12a provided in the third connection pipe 15; a second valve 14a provided in the second connection pipe 13; and a fourth connection pipe A fourth valve 18a provided in the circulation pipe 14 and a fifth valve 19a provided in the first connection pipe 11 are provided in the first connection pipe 11, The.

The raw water supplied along the water supply pipe 12 is supplied to the upper surface of the filter material layer 30 along the second connection pipe 13 and the first pipe 18 by the driving of the controller 100, The filtered water is supplied to the inside of the pool of the raw water tank or the pool where the raw water is discharged along the second pipe 16 and the circulation pipe 14.

Since the circulation process and the filtration process described above are repeatedly performed, the water quality of the raw water tank can be kept clean while the suspended solids are removed from the water inside the raw water tank such as the swimming pool.

The first valve 12a and the third valve 16a are opened and the second valve 14a, the fourth valve 18a and the fifth valve 19a are closed when the cleaning operation is inputted through the operation unit 80, The backwash water is supplied to the lower portion of the filter medium layer 30 through the water pipe 12, the third connection pipe 15 and the second pipe 16 in a reverse direction to the filter medium layer The suspended solid material falling from the filter medium layer 30 is passed through the filtration tank 10 (10) through the first pipe (18), the fourth connection pipe (17) and the drain pipe (19) ).

When the suspended solids are separated and discharged from the filter medium layer 30 by this cleaning operation, the interval between the granules constituting the filter medium layer 30, that is, the cross-sectional area of the air gap is increased, and the flow rate of the filter medium layer 30 is improved The life of the media layer 30 can be extended.

The second valve 14a and the fourth valve 18a are opened and the first valve 12a, the third valve 16a and the fifth valve 16a are opened while the normal filtration process for removing the suspended solids from the raw water proceeds, 19a are blocked.

The raw water supplied along the water pipe 12 is supplied to the upper portion of the filter medium layer 30 along the second connection pipe 13 and the first pipe 18 and flows through the filter medium layer 30, The filtered water to be removed is discharged to the outside of the filtration tank 10 along the second pipe 16 and the circulation pipe 14 and circulated to the raw water tank.

When the washing process for cleaning the filter media 30 is performed by supplying the washing water in the forward direction rather than the reverse washing process, the second valve 14a and the fifth valve 19a are opened, The valve 12a, the third valve 16a and the fourth valve 18a are closed.

The washing water supplied along the water pipe 12 is supplied to the upper portion of the filter medium layer 30 along the second connection pipe 13 and the first pipe 18 and flows through the filter medium layer 30, The washing water to be separated from the layer 30 is discharged to the outside of the filtration tank 10 along the second pipe 16, the first connecting pipe 11 and the drain pipe 19.

The vibration unit 50 includes a seating block 52 provided in the filtration tank 10 and a vibration motor 54 installed in the seating block 52 and generating vibration when power is supplied.

Accordingly, when the cleaning operation is inputted, the vibration motor 54 is supplied with power and the vibration is provided to the filtration tank 10 through the mounting block 52. Therefore, the filter medium layer 30 accommodated in the filtration tank 10 vibrates The suspended solids absorbed in the media material layer 30 are separated from the media material layer 30.

The present embodiment further includes the vibration transmitting portion 70 provided in the filtration tank 10 to transmit the vibration provided from the vibration portion 50 to the inside of the filter media layer 30, The vibration transmitted to the outer wall of the filtration tank 10 is more effectively transferred to the inside of the filter medium 30 along the vibration transmission portion 70 and the suspended solid material easily drops from the granules constituting the filter medium layer 30. [

The vibration transmitting portion 70 includes a vibration plate 74 provided in the filtering tank 10 so as to be impregnated into the filter medium layer 30 and spaced apart from the filtration tank 10, And a vibration supporter (72) installed between the vibration plates (74).

The vibration support 72 extends from the inner wall of the filtration tank 10 at the center side of the filtration tank 10 and the vibration plate 74 is provided at the end of the vibration support 72. The vibration plate 74 A plurality of vibration support members 72 are provided from the outer circumferential surface of the vibration plate 74 toward the filtration tank 10 so that the vibration plate 74 and the filtration tank 10 Thereby supporting the vibration plate 74 to maintain the gap.

The vibration plate 74 includes a first plate 74a having a smaller diameter than the inner diameter of the filtration tank 10 so as to be spaced apart from the filtration tank 10 in the filtration tank 10, A second plate 74b having a diameter smaller than the inner diameter of the first plate 74a and disposed inside the first plate 74a and a second plate 74b having a smaller diameter than the inner diameter of the second plate 74b, And a third plate 74c disposed within the second plate 74b.

The vibration supporter 72 includes a plurality of first supports 72a provided between the filtration tank 10 and the first plate 74a and a plurality of second supporters 72b disposed between the first plate 74a and the second plate 74b And a third support 72c provided between the second plate 74b and the third plate 74c.

Since the first support 72a, the second support 72b and the third support 72c are spaced apart from each other, the first plate 74a through the third plate 74c and the first support 72a through the third plate 72c, The planar shape of the vibration transmission portion 70 formed by the support table 72c is formed in a spiral shape.

Since the vibration transmitting portion 70 formed in the web-like shape is disposed so as to be impregnated in the interior of the filter material layer 30, the vibrating motor 70 is transmitted from the vibration motor 54 to the first support 72a along the seating block 52 The vibration vibrates the first plate 74a and is transmitted to the second plate 74b and the third plate 74c through the second support 72b and the third support 72c to oscillate inside the media layer 30 .

The present embodiment further includes a vortex portion 90 for spraying high pressure air and washing water to the filter medium layer 30 to separate the suspended solid material from the filter medium layer 30, A vortex is provided in the filter medium layer 30 composed of a plurality of grains before the vibration medium is provided to the filter medium layer 30 so that the suspended solid material can be effectively separated from the filter medium layer 30. [

The vortex portion 90 includes a nozzle 92 provided in the filtration tank 10 and opposed to the filter medium layer 10, a cleaning pump 96 for sending the cleaning water to the nozzle 92 side, And an orifice part 98 provided between the nozzle 92 and the nozzle 92 for introducing air and supplying high-pressure air to the washing water.

Since the mounting hole portion is formed on the peripheral surface of the filtration tank 10 and the nozzle hole 92 is formed in each of the mounting hole portions and the mounting hole portion is formed obliquely, the washing water sprayed from the nozzle 92 is discharged from the inside of the filtration tank 10 It is sprayed in the circumferential direction to form a vortex.

Since the engaging plate 92a coupled to the seating groove 94 formed on the circumferential surface of the filtration tank 10 is inclined at the peripheral surface of the nozzle 92, the engaging plate 92a is seated in the seating groove 94 The end of the nozzle 92 is inserted into the filtration tank 10 in an inclined state.

Since the plurality of nozzles 92 are arranged to be inclined in the same direction, when the washing water is simultaneously sprayed from the plurality of nozzles 92, a vortex is formed in the filtration tank 10 and the particles constituting the filter medium layer 30 are flowed, 30). &Lt; / RTI >

The vibrating plate 72 and the vibrating plate 74 according to the present embodiment are coupled by the connecting portion 110. The connecting portion 110 includes a connecting protrusion 112 protruding from the vibrating plate 74, A bolt member 116 formed of a synthetic resin material and penetrating through the connection groove 114 and the connection protrusion 112 and formed of a synthetic resin material; And a nut member 118 fastened to the bolt member 116 and made of a synthetic resin material.

Therefore, corrosion can be prevented from occurring in the connection portion 110 connecting the vibration support 72 and the vibration plate 74, and the vibration support 72 and the vibration plate 74 can be firmly connected.

The control method of the backwashing efficiency enhancement type filter according to one embodiment of the present invention will be described below.

4 is a flowchart illustrating a control method of a backwash efficiency enhancing type filtration apparatus according to an embodiment of the present invention.

Referring to FIGS. 1 to 4, a method of controlling a backwashing efficiency enhancement type filtration apparatus according to an embodiment of the present invention includes filtering a raw water containing a suspended solid material through a first pipe 18, A step S 10 of advancing a filtration normal mode in which the filtration normal mode is performed by supplying the water into the tank 10 through the filter medium layer and a step S20 of judging whether a cleaning operation of the filtration apparatus is inputted through the operation unit 80, When the cleaning operation is inputted to the filtration tank 10 through the first piping 18 and the second piping 16, power is supplied to the vortex portion provided in the filtration tank 10, A step S30 of generating a vortex and a bubble, a step S40 of determining whether a first set time has elapsed when vortex and bubbles are generated in the filter medium layer 30, And supplies power to the vibration unit 50 to supply the power to the filter material layer 30 provided in the filtration tank 10 (S50) of separating the suspended solids from the filter medium layer (30) by transmitting vibration, a step (S60) of judging whether or not the second set time has elapsed when the vibration is transmitted to the filter medium layer (30) A step S70 of turning off the power supply to the vibration unit 50 and supplying reverse osmosis water to the discharge surface side of the filter medium layer 30 when the set time has elapsed; A step S80 of stopping the supply of backwash water when the third set time has elapsed, a step S90 of stopping the supply of backwash water to the filter material layer through the first pipe, (S110) of determining whether a fourth set time has elapsed when the rinse mode is started, and a step (S120) of cutting off the supply of wash water when the fourth set time has elapsed.

When the filtration process is started, the second valve 14a and the fourth valve 18a are opened and the first valve 12a, the third valve 16a and the fifth valve 19a are shut off, The filtration normal mode in which the raw water is supplied to the upper surface proceeds.

The second valve 14a and the fourth valve 18a are opened according to the driving signal transmitted from the control unit 100. When the first valve 12a is opened, The third valve 16a and the fifth valve 19a are shut off.

The raw water supplied along the water pipe 12, the second connection pipe 13 and the first pipe 18 is supplied to the upper portion of the filter medium layer 30 and passes through the filter medium layer 30, The material is removed and circulated through the second pipe 16 and the circulation pipe 14 to the raw water tank.

When the filtration rate of the filter medium layer 30 is lowered due to the long-term filtration operation, the operator inputs the cleaning operation through the operation unit 80. At this time, the operator operates the first valve 12a according to the driving signal transmitted from the controller 100, And the third valve 16a are opened and the second valve 14a, the fourth valve 18a and the fifth valve are shut off and the washing water is fed from the pump 96 so as to be supplied through the plurality of nozzles 92, (10).

At this time, the washing water passing through the orifice portion 98 passes through the section where the cross-sectional area is relatively narrowed, and the flow velocity is increased and a pressure difference is generated. Therefore, air flows in along the pipe connected to the orifice portion 98, Pressure washing water and air are injected through the gas-liquid contact layer 30 to generate vapors along with vortex.

Accordingly, bubbles are generated along with the eddy current in the media layer 30 composed of a plurality of grains, so that the suspended solid material can be more easily separated from the media layer 30.

As described above, when the air layer flows into the filtration tank 10, the air bubble valve 10a installed in the upper portion of the filtration tank 10 discharges the air layer filled in the filtration tank 10.

When the first set time has elapsed after the vortex is generated, the driving of the pump 96 is stopped and power is supplied to the vibration motor 54 so that the first support 72a, the first plate The second plate 72b, the second plate 74b, the third plate 72c, and the third plate 74c.

The vibrations transmitted by the vibration transmission portion 70 are transmitted through the first support plate 72a, the first plate 74a, the second support plate 72b, the second plate 74b, The third support plate 72c and the third plate 74c move the interior of the media layer 30 so that the suspended solids layer adsorbed on the granules 30 can flow through the media layer 30 ). &Lt; / RTI >

When the second set time elapses after the vibration process is started, the first valve 12a and the third valve 16a are opened and the second valve 14a and the fourth valve 14a are opened according to the drive signal transmitted from the controller 100. [ The valve 18a and the fifth valve 19a are cut off and the pump 82 is driven so that the backwash water flows from the supply pipe 12 along the third connection pipe 15 and the second pipe 16, And the backwash water having passed through the filter medium layer 30 in the reverse direction is discharged to the outside of the filtration tank 10 along the first pipe 18, the fourth connection pipe 17 and the drain pipe 19.

When the third set time has elapsed after the supply of the reverse water wash water has started, the reverse water supply is shut off and the second valve 14a, the fifth valve 19a are opened and the first valve 12a, the third valve 16a And the fourth valve 18a are opened.

Therefore, the washing water supplied to the water supply pipe 12, the second connection pipe 13 and the first pipe 18 passes through the filter medium layer 30 from the upper part to the lower part to separate the suspended solid matter, ), The first connection pipe (11) and the drain pipe (19), and is discharged to the outside of the filtration tank (10) instead of the raw water tank.

When the rinse mode as described above is started and the fourth set time has elapsed, the supply of the wash water is interrupted, and a stop signal is transmitted from the controller 100 so as to switch to the filtration normal mode again so that the second valve 14a and the fourth valve The first valve 12a, the third valve 16a and the fifth valve 19a are shut off and the mode is switched by the filtration operation.

Accordingly, it is possible to provide a backwashing efficiency enhancement type filtration apparatus and a control method thereof capable of performing a backwash process after separating suspended solids accumulated in a filter medium layer from a filter medium layer before a backwash process proceeds.

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 embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

Although the backwashing efficiency enhancement type filtration apparatus and the control method thereof have been described by way of example, the present invention is merely an example, and the filtration apparatus of the present invention and the control method thereof are also applicable to the products other than the backwashing efficiency enhancement type filtration apparatus and the control method thereof Can be used.

Accordingly, the true scope of the present invention should be determined by the following claims.

10: Filtration tank 12: Water supply pipe
12a: first valve 14: circulation pipe
14a: second valve 16: second piping
16a: third valve 18: first piping
18a: fourth valve 19: drain pipe
19a: fifth valve 30: filter medium layer
50: vibrating part 52: seating block
54: Vibration motor 70:
72: Vibration support 72a: First support
72b: second support frame 72c: third support frame
74: vibrating plate 74a: first plate
74b: second plate 74c: third plate
80: operating part 82: pump
90: swirl portion 92: nozzle
94: seat groove 96: pump
100: control unit 110:
112: connection protrusion 114: connection groove
116: bolt member 118: nut member

Claims

A filtration tank in which a first pipe and a second pipe are installed so that raw water containing a suspended solid material is passed;
A filter medium which is stored in the filtration tank to allow raw water to pass therethrough and adsorbs and filters the suspended solid material contained in the raw water;
A piping unit for supplying raw water to the filtration tank through the first pipe or supplying reverse water to the filtration tank through the second pipe;
A vibrating part for supplying vibration to the filter material layer so as to separate suspended solids from the filter material layer;
A vibration transmitting portion provided in the filtration tank to transmit the vibration provided from the vibration portion to the inside of the filter material layer; And
And a vortex portion for spraying high-pressure air and washing water to the filter material layer to separate the suspended solid material from the filter material layer,
Wherein,
A water supply pipe to which raw water is supplied;
A circulation pipe for guiding the filtered water so that raw water supplied to the filtration tank through the water supply pipe is discharged through the filter medium layer and circulated;
A drain pipe for discharging backwash water supplied along the second pipe to the outside of the filtration tank after passing through the filter material layer;
A first connection pipe connecting the circulation pipe and the drain pipe;
A second connection pipe connecting the water pipe and the first pipe;
A third connection pipe connecting the water supply pipe and the first connection pipe to the second pipe and the circulation pipe;
A fourth connection pipe connecting the first pipe and the second connection pipe to the drain pipe and the first connection pipe;
A first valve installed in the third connection pipe;
A second valve installed in the second connection pipe;
A third valve installed in the fourth connection pipe;
A fourth valve installed in the circulation pipe; And
And a fifth valve installed in the first connection pipe.

The vibrator according to claim 1,
A mounting block provided in the filtration tank; And
And a vibration motor installed in the seating block and generating vibration when power is supplied.

delete

The vibration transmitting device according to claim 1,
A vibrating plate provided in the filtration tank so as to be impregnated into the filter medium layer and spaced apart from the filtration tank; And
And a vibration supporter installed between the filtration tank and the vibration plate.

delete

The vortex generator according to claim 1,
A nozzle installed in the filtration tank and facing the filter media layer; And
And a washing pump for feeding wash water to the nozzle side.

The method according to claim 6,
Wherein the vortex portion further comprises an orifice portion provided between the cleaning pump and the nozzle and configured to introduce air into the cleaning water to supply high-pressure air to the cleaning water.

(a) when the filtration process is started, the filtration normal mode in which the raw water containing the suspended solid material is supplied to the filtration tank having the first pipe and the second pipe is passed through the filter medium layer;
(b) determining whether a cleaning operation of the filtration apparatus is inputted through the operation unit;
(c) blocking the supply of the raw water when the cleaning operation is input to the operation unit, supplying power to the vortex unit installed in the filtration tank to generate vortex and bubbles in the filter medium layer by the high-pressure cleaning water;
(d) determining whether a first set time has elapsed when vortices and bubbles are generated in the filter material layer;
(e) supplying power to the vibration unit installed in the filtration tank when the first set time has elapsed, and transmitting vibration to the filter material layer provided in the filtration tank to separate the suspended solid material from the filter material layer;
(f) determining whether a second set time has elapsed when a vibration is transmitted to the media layer;
(g) turning off power to the vibration unit when a second set time has elapsed, and supplying reverse osmosis water to the discharge surface side of the filter material layer through the piping portion through the second piping;
(h) determining whether a third preset time has elapsed when backwash water is supplied to the filter material layer;
(i) stopping the reverse water supply when the third set time has elapsed;
(j) proceeding to a rinsing mode in which the washing water is supplied to the filter material layer through the first pipe when the reverse water supply is stopped;
(k) determining whether a fourth set time has elapsed when the rinse mode is started; And
(l) stopping the supply of the washing water when the fourth preset time has elapsed.