KR101364628B1 - Filtering apparatus with continuously divided backwash - Google Patents

Abstract

The present invention relates to a continuous division type backwashing filtering apparatus and more particularly, to a filtering apparatus having a plurality of filtering parts divided into a plurality of sectors, wherein the filtering parts for each sector are backwashed sequentially during a filtering process. The continuous division type backwashing filtering apparatus according to the present invention comprises a main body (10) of a filtering device for introducing raw water and filtering and discharging the introduced raw water; and a filter media housing (20) installed in the main body (10) of the filtering device and filled with filter media, wherein the filter media housing (20) is divided into a plurality of sector filtering parts (21) having inner spaces radially divided, and part of the sector filtering parts (21) among the filtering parts (21) divided into a plurality are backwashed sequentially while part of the other sector parts (21) conduct filtering treatment. The continuous division type backwashing filtering apparatus according to the present invention increases a filtering area by dividing the inner space of the filtering apparatus and composing the filtering parts into a plurality of sectors, conducts filtering treatment and the washing of the filter media in a single filtering apparatus, and increases filtering efficiency greatly by sequentially backwashing the filter media which are divided for each sector filtering part, and enhancing operating time per washing time (operating time/washing time) of the filter media. [Reference numerals] (200) Raw water; (300) Treated water; (400) Backwashing water; (500) Air for backwashing

Description

 Filtering apparatus with continuously divided backwash

The present invention relates to a continuous split backwash filtration apparatus, and more particularly, to a filtration apparatus having a plurality of filtration units divided into a plurality of sectors, wherein the filtration unit for each sector is sequentially sequentially backwashed during the filtration process. It is about.

In general, a filtration device is used in the process of processing raw water containing particulate matter, and a conventional sand filter, a cartridge filter, an anthracite filter, and the like are typically used as the filtration device.

However, these filtration devices such as sand filter, cartridge filter, anthracite filter have one or more disadvantages in the quality of the filtered filtrate, washing efficiency and reuse of the filter medium, and also short replacement cycle of the filter medium due to the cake phenomenon, There was a problem that the facility cost is expensive.

1. Republic of Korea Patent Publication No. 10-0917661 (2009. 9. 9.) 2. Republic of Korea Patent Publication No. 10-1169436 (2012. 7. 23.) 3. Republic of Korea Patent Publication No. 10--2010-0041341 (April 22, 2010) 4. Republic of Korea Patent Publication No. 10-2007-0121734 (Dec. 27, 2007) 5. Republic of Korea Patent Publication No. 10-1110854 (January 20, 2012)

The present invention has been made to solve the above problems, it is an object of the present invention to provide a filtration device that increases the filtration area, shorten the washing time of the filtration unit, and greatly improved filtration efficiency.

The present inventors have found that the above object can be achieved by dividing the internal space of the filtration apparatus to form the filtration unit in the form of a plurality of sectors and simultaneously performing the back-washing of the filtration unit for each sector sequentially and simultaneously with the filtration process. It was completed.

More specifically, the present invention provides the following.

The present invention provides a filtration device comprising a filter main body into which raw water is introduced and filtered and discharged raw water, and a filter medium housing mounted inside the filter main body and filled with a filter medium, wherein the filter medium housing has an inner space. The sector is divided into a plurality of sector filter divided radially, the sector filter selected sequentially among the divided sector filter is back-washed and at the same time the remaining sector filter which is not selected, the raw water filtration treatment is performed in parallel It provides a continuous split backwash filtration device.

In addition, the present invention is a filtration device for processing the raw water containing the particulate matter, the filter body for the raw water is introduced and the filtered raw water discharged; A filter medium housing mounted inside the filter body and having a central portion thereof forming a cavity and made of a porous material, and having a filter material filled therein; A backwashing fluid outlet tube passing through a central portion of the filter media housing and having an upper portion thereof fixed to a rotating shaft and for outflowing the backwashing fluid; A raw water inlet channel formed in an annular space between the filter medium housing and the backwash fluid outlet pipe; A treated water outlet channel formed in an annular space between an outer wall of the filter body and the filter medium housing; A filter medium housing upper cover and a filter medium which are used as a cover for sealing the upper and lower parts of the filter medium housing and are fixed to the backwash fluid outlet pipe by a fixed arm and configured to rotate together with the backwash fluid outlet pipe by rotation of a rotating shaft. It provides a continuous divided backwash filtration device comprising a housing lower cover.

Here, the filter medium housing upper cover and the filter medium housing lower cover each have a backwash fluid outlet and a backwash fluid inlet at positions symmetrically perpendicular to each other with the backwash fluid outlet pipe concentric.

In addition, the filter medium housing is divided into a plurality of sector filtration section in which the inner space is radially divided, and each sector filter section is divided into a zone filled with a primary filter medium and a secondary filter medium, respectively. Lose.

In addition, the backwashing fluid outlet of the upper cover of the filter medium housing and the backwashing fluid inlet of the lower cover of the filter medium housing have the same horizontal cross-sectional shape and area as the sector shape and the horizontal cross-sectional area of each sector filter part constituting the filter medium housing. The upper and lower portions of each sector filtration part are accurately sealed by the backwashing fluid outlet part and the backwashing fluid inlet part.

In addition, the upper and lower parts of the sector filtration unit are sealed sequentially by the rotation of the rotation shaft.

In addition, the rotational speed of the rotating shaft is controlled by the reducer, the positioning pin and the limit switch consisting of a motor and a gearbox so that the upper and lower parts of each sector filter part are sequentially sealed at predetermined time intervals.

In addition, the fixing arm of the upper cover of the filter medium housing that is fixed to the backwash fluid outlet pipe is formed in a structure in which the inside thereof communicates with the backwash fluid outlet pipe.

The continuous split backwash filtration apparatus according to the present invention divides the internal space of the filtration apparatus and configures the filtration unit in the form of a plurality of sectors to increase the filtration area, and also to perform the filtration and washing of the filtration material in one filtration apparatus. At the same time, the filter medium is divided by each sector filtration unit and the back-washing is performed continuously and sequentially to increase the operation time (operating time / washing time) relative to the washing time of the filter medium, thereby greatly improving the filtration efficiency.

1 is a vertical cross-sectional view of a filtration device according to an embodiment of the present invention,
Figure 2 is an exploded perspective view of the filtration device of Figure 1,
3A and 3B are respectively a perspective view and a plan view of the upper cover of the filter medium housing in the filtration apparatus according to the embodiment of the present invention,
3C is a vertical sectional view of the filter media housing top cover taken along line AA of FIG. 3B,
Figure 4a, Figure 4b is a perspective view, a plan view, respectively, of the filter medium housing lower cover in the filtration device according to an embodiment of the present invention,
4C is a vertical cross-sectional view of the filter media housing lower cover taken along line BB of FIG. 4B,
Figure 5 is a vertical cross-sectional view showing a lower structure of the filtration device according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a vertical cross-sectional view of a continuous split backwash filtration device according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the filtration device of FIG.

As can be seen in Figures 1 and 2 continuous continuous backwash filtration device according to an embodiment of the present invention is a filtration device for treating raw water containing particulate matter, the raw water to be filtered and introduced A filter main body 10 which filters and discharges raw water; A filter medium housing 20 mounted inside the filter main body 10 and having a central portion thereof forming a cylindrical cavity and made of a porous material, the inside of which is filled with a filter medium; A backwashing fluid outlet pipe (30) penetrating the central portion of the filter medium housing (20) and having an upper portion thereof fixed to the rotating shaft (60) and for outflowing the backwashing fluid; A raw annular channel formed between the filter medium housing 20 and the backwashing fluid outlet pipe 30 and a raw water inflow channel 40 for introducing raw water to be filtered into the filter medium housing 20; ; A treated water outlet channel (41) for discharging and collecting the filtered raw water as a vertical annular channel formed between the outer wall of the filter main body (10) and the filter medium housing (20); It is used as a cover for sealing the upper and lower parts of the filter medium housing 20 and is fixed to the backwashing fluid outlet pipe 30 by fixing arms 50 and 51, and the backwashing fluid outflow is caused by the rotation of the rotating shaft 60. And a filter media housing upper cover 70 and a filter media housing lower cover 80 configured to rotate with the tube 30.

In the continuous split backwash filtration apparatus according to an embodiment of the present invention, the filter medium housing 20 is made of a porous material, and the internal space is divided into several sector filtration parts 21 radially equally divided. (In FIG. 2, the internal space of the filter medium housing is equally divided into eight sector filter portions).

In addition, each sector filter portion 21 of the filter medium housing 20 is further divided into zones filled with the primary filter medium 22 and the secondary filter medium 23, and the secondary filter medium 23 is the primary filter medium. The contaminant particles which are not filtered by the primary filter medium 22 due to the small size of the particles as compared with (22) are filtered by the secondary filter medium 23.

In the continuous split backwashing filtration apparatus according to an embodiment of the present invention, the raw water to be filtered is introduced into the raw water inlet 12 and flows over the filter housing upper cover 70 to form a vertical annulus formed at the center of the filtration apparatus. ) And the secondary filter medium 22 and secondary filled in the filter medium housing 20 while flowing down the porous outer wall of the filter medium housing 20 abutting the raw water inflow channel 40, After being filtered through the filter medium 23 in turn, it is discharged to the treated water outlet 13 through the treated water outlet channel 41.

3A and 3B are a perspective view and a plan view, respectively, of the filter medium housing top cover in the filter apparatus according to the embodiment of the present invention, and FIG. 3C is a vertical sectional view of the filter medium housing top cover taken along the line AA of FIG. 3B, and FIG. 4A. 4B is a perspective view and a plan view, respectively, of the filter medium housing lower cover in the filter apparatus according to the embodiment of the present invention, and FIG. 4C is a vertical cross-sectional view of the filter medium housing lower cover taken along the line BB of FIG. 4B.

As shown in FIGS. 3A to 4C, the filter medium housing upper cover 70 and the filter medium housing lower cover 80 in the continuous split backwash filtration apparatus according to the embodiment of the present invention are backwash fluid outlet pipes. Each of the backwashing fluid outlets 71 and the backwashing fluid inlet 81 at positions symmetrically perpendicular to each other with the concentric axes 30, and the backwashing fluid outlet 71 and the backwashing fluid inlet, respectively. The section 81 is formed such that the shape and area of the horizontal cross section are the same as the sector shape and the horizontal cross section of each sector filtration section 21 constituting the filter medium housing 20, so that the backwash fluid outlet 71 ) And the backwashing fluid inlet 81 accurately seal the upper and lower portions of the sector filtering part 21 so that the backwashing fluid smoothly flows into and out of the sector filtering part 21.

In addition, the backwashing fluid outlet 71 and the backwashing fluid inlet 81 for sealing the upper and lower portions of each sector filtration part 21 in the continuous split backwashing filtration apparatus according to the embodiment of the present invention are Respectively, the filter medium housing upper cover 70 and the filter medium housing lower cover 80 are respectively coupled to the filter medium housing upper cover 70 and the filter medium housing lower cover 80 by the backwashing fluids by the fixing arms 50 and 51, respectively. It is fixed to the outlet pipe 30, because the upper portion of the backwashing fluid outlet pipe 30 is fixed to the rotating shaft 60 and acts as an extended rotating shaft, the end of the backwashing fluid outflow pipe by the rotation of the rotating shaft 60 (30) rotate the same time The upper and lower portions of each sector filtering portion 21 are sequentially selected and sealed by the backwashing fluid outlet 71 and the backwashing fluid inlet 81, and the backwashing of each sector filtering portion 21 is also sequentially performed. Will be done.

Here, the fixing arm 51 for fixing the filter housing upper cover 70 to the backwashing fluid outlet pipe 30 is coupled to the backwashing fluid outlet 71, the inside of which is a backwashing fluid outlet pipe ( 30, the hollow arm is configured to communicate with the fixed arm 51, and the fluid used in the backwash is backwashed with the role of fixing the filter media housing upper cover 70 to the backwash fluid outlet pipe 30. It also serves to form a flow path for communicating the filter medium housing upper cover 70 and the backwash fluid outlet pipe 30 with each other so that the fluid outlet pipe 30 can flow out.

On the other hand, the rotary shaft 60 by the reducer 90, the positioning pin 100 and the limit switch 110 consisting of a motor and a gear box, the upper and lower portions of each sector filtering portion 21 at regular intervals. The rotation speed is adjusted so that it is selected and sealed.

Referring to the flow of backwashing fluid (backwashing air and backwashing water) in a continuous split backwashing filtration device according to an embodiment of the present invention.

First, as the rotation shaft 60 rotates, the filter media housing upper cover is formed by a connecting structure leading to the rotation shaft 60-the backwashing fluid outlet pipe 30-the filter media housing upper cover 70 and the filter media housing lower cover 80. 70) and the filter housing lower cover 80 are rotated while sealing the upper and lower parts of the filter housing 20, when the rotating shaft 60 is stopped by the positioning pin 100 and the limit switch 110. The filter medium housing upper cover 70 and the filter medium housing lower cover 80 which were rotated while sealing the upper and lower portions of the 20 were also stopped and coupled to the filter medium housing upper cover 70 and the filter medium housing lower cover 80, respectively. The backwashing fluid outlet 71 and the backwashing fluid inlet 81 select one of a plurality of sector filtering parts 21 formed in the filter housing 20 to accurately seal the upper and lower parts thereof.

Subsequently, backwashing fluid (backwashing air and backwashing water) flows from the backwashing fluid inlet 31 installed in the lower part of the filtration apparatus to seal the lower part of the selected sector filtration part 21. The filter medium 22, 23 filled in the sector filter part 21 via the 81 is pushed upwards and backwashed (at this time, a part of the treated water filtered out of the treated water outlet channel 41 is the sector filter part). (21) flows into and is used as backwash water) The fluid used for backwash passes through the central portion of the filter media housing (20) via the backwash fluid outlet (71) that seals the top of the sector filter (21). Is discharged to the backwash fluid outlet 33 through the backwash fluid outlet pipe (30).

Figure 5 is a vertical cross-sectional view showing a lower structure of the filtration device according to an embodiment of the present invention, the backwashing fluid inlet 31, the backwashing fluid inlet 31 and the back used for backwashing the filter medium Backwashing fluid outlets 33 for discharging the washing fluids 400 and 500 are provided in the lower part of the filtering device, respectively.

The backwashing fluid inlet 31 and the backwashing fluid outlet 33 respectively prevent the backwashing fluid inlet tube 32 and the backwashing fluid outlet tube 30 from hindering rotational movements of the backwashing fluid inlet tube 32. And a backwash fluid outlet tube 30.

Although the present invention has been described in detail with reference to the accompanying drawings, the present invention is not limited to this specific structure.

Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope of the following claims.

Accordingly, it is intended that the present invention covers all such modifications and variations as fall within the true scope of the invention.

10: filter body
11: filter cover 12: raw water inlet 13: treated water outlet
20 Filter Media Housing 21 Sector Filter Part 22 Primary Filter Media 23 Secondary Filter Media
30: backwash fluid outlet 31: backwash fluid inlet
32: backwash fluid introduction tube 33: backwash fluid outlet
40: raw water inlet channel 41: treated water outlet channel
50, 51: fixed arm
60: axis of rotation
70: filter medium housing upper cover 71: backwash fluid outlet
80: filter housing lower cover 81: backwash fluid inlet
90: reducer 91: support
100: positioning pin
110: limit switch
200: raw water 300: treated water 400: backwash water 500: air for backwash

Claims (8)

delete In the backwashing filtration apparatus in which the filtration treatment of raw water containing particulate matter and the backwashing of the filter medium are performed in parallel,
A filter main body 10 for filtering raw water and filtering the raw water;
A filter medium housing (20) mounted inside the filter body (10) and made of a porous material, the central portion of which forms a cavity, and the periphery of which is divided into a plurality of sector filtering portions (21);
Backwashing fluid outflow having a backwashing fluid outlet 33 for passing backwashing fluid through the central portion of the filter media housing 20 and acting as an extended rotational axis connected and fixed in parallel with the rotational axis 60. Tube 30;
A raw water inflow channel 40 formed in an annular space between the filter medium housing 20 and the backwash fluid outlet pipe 30;
A treated water outlet channel 41 formed in an annular space between the outer wall of the filter main body 10 and the filter housing 20;
It is used as a cover for sealing the upper and lower parts of the filter medium housing 20 and is fixed to the backwashing fluid outlet pipe 30 by fixing arms 50 and 51, and the backwashing fluid outflow is caused by the rotation of the rotating shaft 60. A filter media housing top cover 70 and a filter media housing bottom cover 80 configured to rotate with the tube 30;
A backwashing fluid outlet 71 which seals the upper part of the backwashed sector filter 21 and communicates with the backwashing fluid outlet pipe 30 by a hollow fixed arm 51;
A backwashing fluid inlet 81 which seals a lower portion of the backwashed sector filtration part 21 and communicates with a backwashing fluid introduction tube 32;
The backwashing fluid introduction pipe 32 has a backwashing fluid inlet 31 that passes through the inside of the backwashing fluid outlet pipe 30 and communicates with the outside, and the backwashing fluid inlet 31 and the backwashing fluid Outlets 33 are respectively backwashing fluid introduction pipe 32 and the backwashing fluid outlet pipe 30 so as not to inhibit the rotational movement of the backwashing fluid inlet pipe 32 and the backwashing fluid outlet pipe 30. Continuous backwash filtration apparatus, characterized in that connected to). 3. The method of claim 2,
The backwashing fluid outlet (71) and the backwashing fluid inlet (81) is a continuous split backwashing filtration device, characterized in that each of the backwashing fluid outlet pipe (30) is vertically symmetric with each other. 4. The method according to claim 2 or 3,
The sector filter part 21 is formed in a shape in which the peripheral space of the filter medium housing 20 is divided into radial equal parts, and each sector filter part 21 is again the primary filter material 22 and the secondary filter material 23. Continuous divided backwash filtration device, characterized in that each divided into zones filled with. The method of claim 3, wherein
The backwashing fluid outlet 71 of the filter medium housing upper cover 70 and the backwashing fluid inlet 81 of the filter medium housing lower cover 80 have a horizontal cross-sectional shape and an area of the filter medium housing 20. It is formed to be the same as the sector shape and the horizontal cross-sectional area of each sector filtration unit 21 constituting the upper and lower portions of each sector filtration unit 21, the back-washing fluid outlet 71 and the back-washing fluid inlet Continuous divided backwash filtration device, characterized in that configured to be correctly sealed by (81). 5. The method of claim 4,
Each sector filter portion 21 is backwashed by the backwash fluid outlet 71 of the filter medium housing upper cover 70 and the filter medium housing lower cover 80 which rotate in synchronization with the rotation of the rotary shaft 60. Continuous divided backwash filtration device, characterized in that the upper and lower parts are sealed sequentially by the fluid inlet (81). The method according to claim 6,
The rotary shaft 60 is a top and bottom of the sector filtering portion 21 at regular intervals by a reduction gear 90, a positioning pin 100 and a limit switch 110 consisting of a motor and a gearbox sequentially. Continuously divided backwash filtration device characterized in that the rotational speed is controlled to be sealed. delete

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