KR102133206B1 - Multi complex Sand Filter - Google Patents

Abstract

The present invention relates to a multi-composite sand filter configured to improve the structure of a facility for agitating sand filled in a housing and to equip a complex filter medium and a filter unit to purify contaminated water more efficiently.
The present invention has a body made of upper and lower hard plates, and at the same time, this body is formed with a drain for discharging purified water, including a water inlet pipe and a backwash water drain through which contaminated water flows, and sand inside the body. The composite filter material and filter unit including are sequentially stacked, and the motor is mounted at the upper end of the main body, and at the same time, the sand is mixed by a rotating shaft arranged vertically to operate according to the operation of the motor and a stirring blade arranged on the rotating shaft. It is configured to be able to.
Accordingly, the present invention can be evenly backwashed by allowing the sand filled in the interior of the housing to be thoroughly mixed by using the rotating shaft and the hemispherical stirring blades constituting the stirring means, whereby the water used for backwashing Not only can the amount be reduced, but the purification time can be significantly shortened. In addition, it is possible to more efficiently purify the contaminated water by improving the filtering ability by using a separate composite filter material and a filter unit installed in the lower part of the housing, and it is most preferably applicable to large-capacity water purification.

Description

Multi complex sand filter

The present invention relates to a filtration facility, and more specifically, to improve the structure of a facility for agitating sand filled in the housing, and equipped with a composite filter material and a filter unit, a multiple composite sand filter configured to purify contaminated water more efficiently. It is about.

In general, since water tanks used in swimming pools, public sauna facilities, and baths are commonly used by many people, the water filled in the water tanks must be replaced with clean water as water quality is easily contaminated.

In addition, when the contaminated water is discharged as it is, the consumption of water is too large, which is not only economical, but also wastes water and consequently depletes water and wastes energy.

Accordingly, the relatively less contaminated water used in water tanks, etc., is used in such a way as to supply clean water filtered through various floating substances or foreign substances contained in water to the water tank again by using a circulating filtration device. Of course, by reducing the amount of water used, it is possible to have economic feasibility.

However, the conventional filtration device requires a wide facility because the piping connection is very complicated and the facility itself is bulky, and thus requires a large initial cost.

Moreover, in order to alternately perform the process of re-supplying purified water to the water tank after filtering out suspended substances or contaminants contained in contaminated water or the backwashing process of cleaning the inside of the filter tank, the manager must check and operate the device. In addition, it is not only cumbersome and inconvenient to operate and manage, but also has to incur considerable labor costs.

In relation to such a filtration facility, in the waste heat recovery device for hot water disclosed in Korean Patent No. 0686189, a wastewater collection tank to which an already used wastewater inlet pipe is connected and a wastewater connected to the wastewater collection tank by a wastewater supply pipe and installed a heat exchanger are installed. It comprises a heat exchange tank and a waste water discharge pipe connected to the waste water heat exchange tank.

Although this device performs backwashing using a filter box method, it is necessary to improve the structure more efficiently because backwashing is not performed well.

In addition, in the case of Publication No. 2009-0026405, the sand is filled in the sand filter so that the sand can be stirred by a rotating screw interlocked by a reduction motor, but the entire sand cannot be stirred and only the impeller is stirred. Of course, the impeller and the rotating shaft are easily deformed or damaged by the resistance of sand.

Published Patent No. 2009-0026405 (published on March 13, 2009): Automatic cleaning device for sand filters. Published Patent No. 2017-0031996 (published on March 22, 2017): Wastewater waste heat recovery and filtration device. Registered Patent No. 0573425 (registered on April 17, 2006): Filtration device for bathroom wastewater. Registered Patent No. 0686189 (Registered on Feb. 15, 2007): Waste heat recovery device for hot water. Registered Patent No. 1509615 (registered on April 1, 2015): Sand filter.

The present invention is to solve the conventional problems as described above, the object of the present invention is to improve the filtration capability by installing a filter unit including a separate composite filter medium as well as to be able to mix the sand as a whole at a time through structural improvement in the housing. It is to provide multiple composite sand filters that can improve and purify contaminated water more effectively.

The present invention for achieving this object is a filtration facility configured to discharge purified water to the outside after supplying contaminated water to a sand-filled housing, and having a body made of upper and lower plates. The main body is formed with a drainage pipe for discharging purified water, including a water inlet pipe and a backwashing water drainage through which contaminated water flows, and a rotating shaft arranged vertically to operate when the motor mounted on the upper end of the main body is operated, and each of them. The cross-section is composed of circular arcs so that the sand can be mixed by agitating blades arranged in a spiral shape so that the heights are shifted around the rotation axis. The inner and upper and lower ends of the main body are held in bearings fixed on the first bracket. The support member is rotated with the rotating shaft and fixedly installed on the second bracket, respectively, and a supporting member is installed to maintain the lower end portion of the rotating shaft at a fixed center position, and the activated carbon layer and the anthracite layer including sand are installed inside the body. A composite filter material and a filter unit made of each are sequentially stacked, and the filter unit is composed of an inner plate body having a dense perforation hole and an outer plate body having a through hole gradually decreasing toward the inside, on a support piece formed on a side wall in the body. It is configured to be mounted on a plurality of vertical rods and horizontal pedestals while being fastened with bolts.

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The present invention can be uniformly backwashed by allowing the sand filled inside the housing to be thoroughly mixed by using the rotating shaft and the hemispherical stirring blades constituting the stirring means, thereby reducing the amount of water used for backwashing. In addition to this, the purification time can be significantly shortened.

In addition, it is possible to more efficiently purify the contaminated water by improving the filtration ability by using a separate composite filter material and a filter unit installed in the lower part of the housing, and it is most preferably applicable to large-capacity water purification.

1 is a cross-sectional configuration of the sand filter disclosed in Patent No. 1509615,
Figure 2 is a perspective view of the stirring means shown in Figure 1;
Figure 3 is a schematic configuration diagram for explaining the water purification and backwashing process of the sand filter,
Figure 4 is a cross-sectional view showing the entire configuration of a sand filter according to the present invention,
5a and 5b are perspective and plan views showing a part of the stirring means,
Figure 6 is a perspective view of the separation of the filter unit mounted in the main body,
7A and 7B are a plan view and a bottom perspective view of an assembled state of a filter unit,
Figure 8 is a cross-sectional view of the assembled filter unit,
9 is a schematic configuration diagram for explaining the operation process of the sand filter.

Hereinafter, preferred embodiments according to the present invention will be described in more detail with reference to the accompanying drawings, but the specific structures and functions they have are shown as one structural example and are not limited to the embodiments described herein.

First, as an example in which the embodiments of the present invention can be most preferably applied, the embodiments disclosed in Patent No. 1509615 are extracted and described as they are, and furthermore, after deriving the problems according to the configuration and operation effects of the present invention, I want to.

As shown in the attached FIGS. 1 to 3, the sand 10 is filled in the inside of the housing 200 in which the drain hole 280 is formed, and the contaminated water supply pipe 400 introduced into the inside of the housing 200 It is disposed on the top of the sand 10, the stirring means 100 is disposed inside the housing 200.

As the lower end of the rotating shaft 300 is connected to the upper center of the stirring means 100, it is driven by a motor 350 mounted on the housing 200.

In the stirring means 100, the outer circumferential surface of the stirring screw 120 is joined to the stirring frame 110 so that the stirring screw 120 in which the hollow portion 121 is formed is disposed inside the stirring frame 110, and the stirring frame ( 110) is composed of first and second flat iron frames 111 and 113 so that the upper ends intersect each other.

The lower end of the rotating shaft 300 is connected to the intersection 115 of the first and second flat iron frames 111 and 113, and the first rotating pedestal 130 is joined to the upper end of the vertical portion, and the first and second flat iron The second rotating pedestal 140 is joined to the lower ends of the frames 111 and 113.

The stirring frame 110 is equipped with a dispersing network 150 on the upper inner side, and is supplied in a state in which contaminated water discharged from the contaminated water supply pipe 400 by the dispersing network 150 is distributed toward the sand 10.

Stirring means 100 configured as described above is the power of the motor 350 is transmitted to the stirring frame 110 through the rotating shaft 300, the stirring frame 110 is rotated, the stirring screw 120 is sand (10 By mixing), the stirring screw 120 can mix the entire sand filled in the housing 200 at one time.

When the stirring frame 110 is rotated, the first and second rotating pedestals 130 and 140 are supported by the first and second bearings 230 and 260 disposed in the housing 200, and the stirring frame 110 and the stirring screw ( 120) can be dispersed.

In addition, the housing 200 is a flange 211 is formed on the top of the main body 210, the flange 211 is coupled by the flange 221 and the bolt 225 of the cover 220, the main body 210 The first pedestal 215 is joined to the lower portion of the flange 211.

The first bearing 215 is equipped with a first bearing 230 so that the first rotating pedestal 130 of the stirring means 100 is supported by the first bearing 230, and the second bearing 250 at the inner lower end ) Is disposed and the second bearing 260 is mounted on the second pedestal 250 so that the second rotating pedestal 140 of the stirring means 100 is supported.

In addition, a backwash water discharge port 270 through which the water backwashed with sand 10 is discharged is formed at an upper portion of the housing 200, and a drain hole for discharging water filtered by the sand 10 at the lower side ( 280) and a sand outlet 290 for discharging the contaminated sand 10 is formed, and a monitoring window 227 in which new sand is put in the cover 220 or the inside can be observed is disposed.

Referring to Figure 3, the sand filter is the inside of the housing 200 through the contaminated water supply pipe 400 as the contaminated water is supplied to the contaminated water supply pipe 400 through the first line (L1) by the pump (P1) Furnace contaminated water is supplied, filtered by sand 10, and filtered water is discharged through a second line L2 connected to a drain 280.

In addition, for backwashing, water and air are supplied to the interior of the housing 200 through the second line L2 connected to the drain 280, so that washing water and air backwashing the sand 10 are backwashed water outlets 270 ) To the outside.

The sand filter configured as described above is suitable for a large-capacity water purification which has relatively little sludge and filters a lot of water, but when the stirring screw 120 constituting the stirring means 100 rotates in the process of mixing the sand 10, the sand ( 10) There is a problem in that it is not able to mix evenly as a whole due to idling.

Moreover, while a large pressure is applied to the inside of the housing 200, it acts as a disturbing factor during operation, and of course, filtration efficiency decreases.

On the other hand, the attached FIGS. 4 to 9 are improved structures in consideration of the problem of the sand filter as described above. As shown in these drawings, the present invention constitutes one body 20 by the upper and lower plates 21a, 21b, and the inlet pipe through which contaminated water is supplied to the outer periphery of the body 20 ( 22) and a drain hole (24) for guiding filtered water from contaminated water is formed, including a drain hole (23) for guiding backwash water to the outside.

Flanges 25a are formed on the upper and lower hard plates 21a and 21b, respectively, and are fastened by bolts 25b, and a motor 30 is installed at the center of the upper end of the main body 20 to be centered within the body 20 It is possible to operate the stirring means disposed in.

The stirring means is provided with a rotating shaft 31 vertically arranged at the center in the main body 20 and hemispherical stirring wings 32 mounted at regular intervals on the rotating shaft 31, and the image in the main body 20 is provided. , It comprises a support member (33A) and the support member (33B) installed on the lower end.

The support member 33A is held on a bearing 27 fixedly installed on the first bracket 26a in the main body 20 to rotate together with the rotating shaft 31, and the support member 33B has a second bracket ( 26b) in a fixedly installed state, the lower tip of the rotating shaft 31 is maintained at a fixed central position so that the operation of the rotating shaft 31 is smoothly performed.

Sand (S1) is filled between the support member (33A) and the support member (33B) in the body (20), and is supplemented through the mouth and outlet (28a, 28b) formed in the body (20) or life due to long-term use You can remove this done.

In addition, a perforated plate body 40 is installed on the inner upper side of the main body 20 to receive the inlet pipe 22 through which contaminated water flows, and the inlet pipe 22 is upward from the inner side of the perforated plate body 40. It is bent and configured to eject contaminated water toward the bottom.

As shown in Figure 5a, 5b, the stirring blades 32 are mounted such that the heights are shifted with respect to the rotation axis 31, and at the same time, arranged along an imaginary spiral around the rotation axis 31 It is most preferable to manufacture each stirring blade 32 in the form of a 1/3 cut of a cylindrical pipe having a diameter of approximately 100Ø to 300Ø.

That is, the cross-section of the stirring blades 32 can be effectively mixed with the sand S1 by forming an arc shape having the same shape as the bucket.

At the lower end of the supporting member 33B, filter units 50 are disposed, including a composite filter material S2, respectively.

The composite filter material S2 may be composed of an activated carbon layer 41a and an anthracite layer 41b. These composite filter media (S2) can be supplemented through the inlet and outlet (29a, 29b) formed in the body 20, or can remove the end of life.

The activated carbon layer 41a is used for the purpose of removing odor from contaminated water, and the anthracite layer 41b is a material that has been filtered to an appropriate size using anthracite to be used for large-scale water treatment of water and sewage.

As shown in Fig. 6, the filter unit 50 includes two inner plate bodies 52A having a dense through hole 51a, and has a through hole 51b having a diameter gradually decreasing toward the inside. It consists of the outer plate body 52B of a hawk.

Each of the inner and outer plate bodies 52A and 52B is fastened with a bolt 54b on a support piece 54a protruding from the bottom surface in the main body 20 via the upper and lower fixing rings 53, and the filter The bottom surface of the unit 50 is provided with an injection mechanism 60 for performing a backwashing function by injecting air into the housing 20 by operation of a pump.

On the other hand, as shown in Figures 7a to 8, in the case of the filter unit 50 may be configured by installing a separate support means to ensure the robustness in the process of being mounted in the body 20.

That is, each of these inner and outer plate bodies 52A and 52B is fastened with a bolt 54b on a support piece 54a protruding from the bottom surface in the main body 20 via the upper and lower fixing rings 53, , It is mounted on a plurality of vertical rods 55a and horizontal pedestals 55b installed on the inner bottom surface of the main body 20 to stably install.

By the configuration as described above, the power of the motor 30 is transmitted through the rotating shaft 31, the hemispherical stirring blades 32 are rotated together with the support member 33A, and each stirring blades 32 are deformed It is possible to mix the sand S1 filled in the main body 20 while rotating without being damaged or damaged.

At this time, since the stirring blades 32 are formed in a circular arc shape such as a bucket and are mounted in a spiral around the rotating shaft 31, it is possible to stir the sand S1 more effectively.

When the rotating shaft 31 is operated, the rotational resistance of the stirring blade 32 is controlled by the supporting member 33B holding the tip of the rotating shaft 31 together with the rotation of the supporting member 33A installed in the main body 20. Can be dispersed.

Then, the water first filtered by the sand S1 passes through the composite filter medium S2 composed of the activated carbon layer 41a and the anthracite layer 41b again, and also passes through the filter unit 50 to the drain hole ( 24) It can lead to the side.

Referring to FIG. 9, when the sand filter is operated, the pump P1 is operated and contaminated into the interior of the body 20 as the contaminated water is supplied to the inlet pipe 22 through the first line L1. Water is supplied to the primary filtration by sand (S1) and at the same time it is filtered through the composite filter medium (S2) and the filter unit (50).

Thereafter, the filtered water is discharged and circulated through the second line L2 connected to the drain 24, and thereafter, when performing backwashing, the main body 20 is passed through the second line L2. Backwashing is performed by supplying water to the furnace and simultaneously supplying air through the air injection mechanism (60). In addition, washing water and air may be discharged to the outside through the backwash water drain 23.

The sand (S1) accommodated in the main body (20) is capable of introducing new things or removing contaminants through the mouths and outlets (28a, 28b) formed in the plate (21a), and of the composite filter material (S2) In case, it can be input and removed through the inlet and outlet (29a, 29b).

As described above, according to the multi-composite sand filter according to the present invention, it is possible to uniformly backwash by using the rotating shaft and the hemispherical stirring blades constituting the stirring means to thoroughly mix the sand filled inside the housing. Due to this, it is possible to reduce the amount of water used for backwashing as well as significantly shorten the purification time.

In addition, it is possible to more efficiently purify the contaminated water by improving the filtration ability by using a separate composite filter material and a filter unit installed in the lower part of the housing, and is most preferably applicable to large-capacity water purification.

The technical problem of the present invention is achieved by the technical configuration as described above, although the present invention is not limited thereto, and is not limited thereto, and is accomplished by a person skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the technical scope of and within the equality of the claims to be described below.

20: main body 21a, 21b: hard plate
22: inlet pipe 23,24: drain
25a: flange 25b: bolt
26a,26b: Bracket 27: Bearing
28a,28b: Entrance 29a,29b: Exit
30: motor 31: rotating shaft
32: hemispherical rotary blade 33A: support member
33B: support member 40: perforated plate
41a: activated carbon layer 41b: anthracite layer
50: filter unit 51a: transmission hole
51b: Through-hole 52A: Inner plate body
52B: outer plate body 53: retaining ring
54a: base 54b: bolt
55a: vertical bar 55b: horizontal support
60: air injection mechanism

Claims (5)

A filtration facility that is configured to discharge purified water to the outside after supplying contaminated water to the inside of a sand-filled housing.
Having the main body 20 made of the upper and lower hard plates 21a and 21b, and at the same time, discharging purified water, including the inlet pipe 22 and the backwash water drain 23 through which contaminated water flows into the main body 20 For the drain 24 is formed,
The rotation shaft 31 vertically arranged to operate at the time of operation of the motor 30 mounted on the upper end of the main body 20 and each cross section are formed in an arc shape so that the heights are shifted around the rotation shaft 31 It is configured to mix the sand (S1) by the stirring blades (32) arranged as,
On the inner upper and lower ends of the main body 20, it is held on a bearing 27 fixedly installed on a first bracket 26a, and on a support member 33A and a second bracket 26b rotating together with the rotating shaft 31. Each of the supporting members 33B, which are fixedly installed and maintain the lower front end portion of the rotating shaft 31 in the normal central position, is installed,
A composite filter material (S2) and a filter unit (50) made of activated carbon layer (41a) and anthracite layer (41b), including sand (S1), are sequentially stacked inside the body (20), respectively.
This filter unit 50 is composed of an inner plate body 52A having a dense perforation hole 51a and an outer plate body 52B having a through hole 51b that gradually decreases toward the inside, and is formed on a side wall in the body 40 Multiple composite sand filter characterized in that it is configured to be mounted on a plurality of vertical rods (55a) and horizontal pedestal (55b) while being fastened with a bolt (54b) on the support piece (54a). The method of claim 1, wherein the contaminated water inlet pipe 22 is bent upward in the body 20, characterized in that it is accommodated in a cylindrical perforated plate 40, a multi-composite sand filter. delete delete delete

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