KR20170043346A - Ceramic membrane module and filtering-condensing apparatus provided with the same - Google Patents

Ceramic membrane module and filtering-condensing apparatus provided with the same Download PDF

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Publication number
KR20170043346A
KR20170043346A KR1020150142988A KR20150142988A KR20170043346A KR 20170043346 A KR20170043346 A KR 20170043346A KR 1020150142988 A KR1020150142988 A KR 1020150142988A KR 20150142988 A KR20150142988 A KR 20150142988A KR 20170043346 A KR20170043346 A KR 20170043346A
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South Korea
Prior art keywords
filtration
separation membrane
cassette
unit
separation
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KR1020150142988A
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Korean (ko)
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KR101760674B1 (en
Inventor
김대건
유인상
박정근
장현찬
홍기호
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김대건
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/02—Inorganic material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2319/00—Membrane assemblies within one housing
    • B01D2319/04—Elements in parallel
    • B01D2321/2091—

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The present invention relates to a filtration and concentration apparatus which separates a liquid and solids, such as sludge, from each other by filtering a suspension. Provided is the filtration and concentration apparatus comprising a filtration unit and a washing unit; wherein the filtration unit comprises separator modules provided with a plurality of separators, a filtrate outlet, and a plurality of frames mounted in a direction around the separator modules; wherein the washing unit comprises a plurality of rotating members inserted alternately with the separators and configured to rotate by using the center axes of the frames as the axes of rotation, the gaps inside the side walls of the separator modules are formed as a filtrate path, and gaps between a plurality of separator modules mounted on the frames are formed as a solid path; and wherein the separator modules comprise a plurality of planar arcuate separators and transverse-sectional arcuate cassettes configured such that a plurality of separators have been mounted therein, and the gaps between the cassette sand the plurality of separators are formed as a filtrate path. The ceramic separator module and filtration and concentration apparatus according to the present invention are advantageous to washing and continuous operation, and facilitate assembly, separation, and changes in filtration capacity.

Description

TECHNICAL FIELD [0001] The present invention relates to a ceramic separator module and a filtration concentrator having the ceramic separator module.

The present invention relates to a filtration concentrator for separating solids such as liquid and sludge by filtration of the suspension.

In recent years, solid-liquid separation processes are required in various industrial fields such as environmental wastewater treatment, water treatment, waste oil treatment, chemical, food, medicine, refinery and bio. Particularly, in the field of environmental wastewater treatment and water treatment, such solid-liquid separation process is becoming more important with respect to water environment improvement and water reuse.

In the above-mentioned solid-liquid separation process, separation membranes having various shapes and materials are utilized. Particularly, since the ceramic separators have excellent heat resistance, chemical resistance, abrasion resistance, and the like, It is attracting attention.

Such a ceramic separator is classified into an in-out type and an out-in type according to the filtration direction. The outflow type is a method in which the external influent water is introduced from the outside of the separation membrane, filtered, and then discharged through the inside of the separation membrane.

The in-type ceramic separator has a tubular shape having a simple structure and a honeycomb type having a maximized filtration area according to the manufactured shape, and is generally operated in a corss-flow manner. Such a tube type or honeycomb type ceramic separator is advantageous for continuous operation, but it is difficult to remove the ceramic separator if clogging occurs on the surface of the separator, so that maintenance is difficult. On the other hand, the out-in type ceramic separator is a flat sheet type manufactured in the form of a plate having a thickness of several millimeters, and is generally operated in a dead-end manner. The flat membrane type ceramic separator has advantages of easy surface cleaning and easy manufacturing, but it has disadvantage in continuous operation because the filtration area per unit volume is small and the whole amount is operated by filtration method and the clogging phenomenon progresses rapidly.

Therefore, although the recent ceramic separator has a filtration performance equal to or higher than that of the polymer separator, there is a need to improve stable and continuous operation of the ceramic separator, especially in the flat membrane type.

Also, the filtration and concentration apparatus using the conventional ceramic separation membrane is difficult to assemble and disassemble for maintenance, and it is difficult to flexibly adjust the filtration capacity in accordance with the working environment.

An object of the present invention is to provide a ceramic separator module which is advantageous for cleaning and continuous operation, and which facilitates the assembly, separation and change of filtration capacity, and a filtration concentrator having the same.

In the process of researching and developing a new filtration and concentration apparatus, the present inventors have proposed a filtration unit comprising a plurality of separation membrane modules provided with multi-stage flat membrane-type ceramic separation membranes and inserted alternately with the separation membrane The present invention has been accomplished by knowing a filtration concentrator comprising the filtration unit and the cleaning unit, in addition to the mechanical design of the filtration concentrator. The gist of the present invention related to the above problem is as follows.

(1) Filtration unit; And a cleaning unit, wherein the filtration unit comprises: a separation membrane module having a plurality of separation membranes and having a filtrate water outlet; And a frame for mounting the separation membrane module in a plurality of circumferential directions, wherein the cleaning unit includes a plurality of rotation members inserted alternately with the separation membrane and rotated about a central axis of the frame, Wherein a gap inside the side wall is formed as a filtration water passage, and a gap between the plurality of separation membrane modules mounted on the frame is formed as a solid material passage.

(2) The separation membrane module includes a plurality of planar arcuate separators; And a cross-sectional arc-shaped cassette in which a plurality of separation membranes are mounted in multiple stages, wherein a gap between the cassette and the plurality of separation membranes is formed as a filtration water passage.

(3) The separation membrane module according to the above (2), further comprising a cartridge mounted on the cassette by mounting the separation membrane, and the assembly of the separation membrane and the cartridge is mounted in the cassette in multiple stages .

(4) The filtration concentrator according to (2), wherein a groove for the filtration water passage is formed inside the cassette.

(5) The filtration concentrator according to (1), wherein the cleaning unit further includes a support member provided alternately with the rotating member along the rotation axis to support an end side of the separation membrane.

(6) The filtration concentrator according to (5), wherein the rotary member and the support member are provided integrally or separately from the shaft rod constituting the rotary shaft.

(7) The filtration concentrator according to (5), wherein the rotary member is provided with a brush.

(8) The filtration concentrator according to (1), further comprising a concentration unit coupled to a lower end of the filtration unit and having a solids discharge port.

(9) The filtration concentrator according to (8), wherein the concentration unit includes a support for rotatably supporting the cleaning unit.

(10) The filtration concentrator according to (1), further comprising a cap coupled to an upper end of the filtration unit and having a suspension inlet and a counterflow.

(11) The filtration concentrator according to (10), wherein the cap has a support for rotatably supporting the cleaning unit.

(12) The filtration concentrator according to (1), wherein a plurality of the filtration unit and the cleaning unit assembly are coupled in series.

(13) A separation membrane module having a plurality of separation membranes in multiple stages and provided with filtration water soccer, comprising: a plurality of planar arcuate separation membranes; And a plurality of separation membranes are mounted in a multi-stage, wherein a gap between the cassette and the plurality of separation membranes is formed as a filtration water passage.

(14) The separation membrane module according to (13), wherein the arcuate central angle of the separation membrane is smaller than the arcuate central angle of the cassette.

(15) The separation membrane module according to (13), further comprising a cartridge mounted on the cassette with the separation membrane mounted thereon, wherein the separation membrane and cartridge assembly are mounted in multiple stages in the cassette.

(16) The separation membrane module according to (1), wherein a groove for the filtration water passage is formed on the inner side of the cassette.

A filtration and concentration apparatus according to the present invention includes a filtration unit including a plurality of separation membrane modules provided with a flat membrane type ceramic separation membrane in a multi-stage, and a cleaning unit including a rotating member alternately inserted into the separation membrane of the filtration unit and rotating, And it is particularly advantageous for continuous operation by simultaneously performing the cleaning process during the operation process.

Further, the filtration and concentration apparatus can easily assemble and separate the device through the separation membrane module, the filtration unit including the separation membrane module, the assembly structure for the cleaning unit, and the coupling structure between the filtration unit and the cleaning unit.

In addition, the filtration and concentration apparatus can change the filtration capacity flexibly according to the working environment by connecting the filtration unit and the cleaning unit in series as one set.

1 is a perspective view and a bottom perspective view of a filtration and concentration apparatus according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of the filtration concentrator of FIG. 1; FIG.
Fig. 3 is a plan view and a longitudinal sectional view of the filtration concentrator of Fig. 1; Fig.
4 is a perspective view and a cross-sectional view of a filtration unit according to an embodiment of the present invention.
5 is a perspective view, a plan view, and a longitudinal sectional view of a separation membrane module according to an embodiment of the present invention.
6 is a perspective view and a plan view of a separation membrane according to an embodiment of the present invention.
7 is a perspective view and a cross-sectional view of a cartridge according to an embodiment of the present invention.
8 is a perspective view and a plan view of a cassette according to an embodiment of the present invention.
9 is a perspective view and a plan view of a frame according to an embodiment of the present invention.
10 is a schematic view of a filtration process by a separation membrane according to an embodiment of the present invention.
11 is a perspective view, a plan view, and a longitudinal sectional view of a cleaning unit according to an embodiment of the present invention.
12 is a perspective view and plan view of a rotating member according to an embodiment of the present invention.
13 is a perspective view and a longitudinal sectional view of the shaft rod according to the embodiment of the present invention.
14 is a perspective view and a side view of a support member according to an embodiment of the present invention.
15 is a perspective view and a longitudinal sectional view of a concentration unit according to an embodiment of the present invention.
16 is a perspective view, a plan view, and a longitudinal sectional view of a cap according to an embodiment of the present invention;
17 is a perspective view of a makeup filtration concentrator according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same or similar reference numerals are given to the same or similar parts. Also, when an element is referred to as " including " an element throughout the specification, it does not exclude other elements unless specifically stated to the contrary. It is to be understood that the present invention may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. .

First, the entire structure of the filtration and concentration apparatus according to an embodiment of the present invention and the structure of each component element constituting the filtration and concentration apparatus will be described in detail and the operation contents of the filtration and concentration apparatus will be described.

The filtration concentrator (Fig. 1 To  3)

Fig. 1 is a perspective view and a bottom perspective view of a filtration and concentration device 10 according to an embodiment of the present invention, Fig. 2 is an exploded perspective view of the filtration and concentration device 10, Fig. 3 is a plan view of the filtration and concentration device 10, Respectively.

The filtration concentrator 10 according to an embodiment includes a filtration unit 100 and a cleaning unit 200. The filtration unit 100 includes a separation membrane module 110 having a plurality of ceramic separation membranes 1110 in multiple stages and having a filtrate water outlet 1137 and a plurality of As shown in FIG. The cleaning unit 200 includes a plurality of rotating members 220 which are coupled to the inside of the filtration unit 100 and alternately inserted into the separation membrane 1110 to rotate around the central axis of the frame 120. A vacuum pump (not shown) such as a diaphragm may be connected to the filtrate outlet 1137 to apply a vacuum pressure to the filtration and concentration apparatus 10.

In this case, a gap 117A (see FIG. 5C and FIG. 10) inside the side wall of the separation membrane module is formed as a filtration water passage, and a gap between the plurality of separation membrane modules 110 mounted on the frame 120 (117B) is formed as a solid passage. The suspended solids flow in from the upper part of the filtration unit 100 and are filtered while passing through the separation membrane provided at the multi-stage, and are discharged to the filtered water outlet 1137 through the gap 117A. And sequentially moves downward through the gap 117B between the plurality of separation membrane modules 110 mounted on the frame 120 and is discharged to the lower portion of the filtration unit 100. [

The filtration and concentration apparatus 10 according to the embodiment may further include a cap 400 and a concentration unit 300, which are selectively coupled to upper and lower ends of the filtration unit 100, respectively. The cap 400 is provided in a tubular shape with both open ends and is coupled to the upper end of the filtration unit 100. The cap 400 has a suspension inlet 407A and a counterflow opening 407B at its side, A cruciform support portion 408 for supporting the rotation shaft of the unit 200 is integrally formed. The concentrating unit 300 is provided in the form of a funnel and is connected to the lower end of the filtration unit 100. A discharge port 307 for the concentrated solids is provided at the lower center of the filtration unit 300, Shaped supporting portion 308 for supporting the rotation axis of the rotary shaft 308 is integrally formed.

The filtration unit To  10)

4 shows a perspective view and a cross-sectional view of a filtration unit 100 according to an embodiment of the present invention.

The filtration unit 100 includes the separation membrane module 110 of FIG. 5 and the frame 120 of FIG. 9, and the separation membrane modules 110 are mounted in plurality along the circumferential direction of the frame 120. 9, the frame 120 has a structure in which the ring portions 122 provided at the upper and lower ends are integrally connected by a plurality of bar-shaped connecting portions 124, and the ring portions 122, The perforated area of the side surface partitioned by the partition wall 124 functions as a receiving portion 126 in which the respective separation membrane modules 110 are accommodated and mounted. In this case, the separation membrane module 110 can be coupled through a sealing O-ring using a screw or the like (not shown) at a portion where the separation membrane module 110 is in contact with the ring portion 112 or the connection portion 124 of the frame 120. Flanges 129a and 129b are formed at the periphery of the ring part 122, to which a cap 400 and a concentrating unit 300 described below are coupled.

Referring to the cross-sectional view of the filtration unit 100 of FIG. 4, a gap 117A for the filtrate passageway is formed inside the side walls of each membrane module 110, and between the circumferentially adjacent membrane modules 110, A gap 117B which is a passage is formed.

5 is a perspective view, a plan view, and a longitudinal sectional view of the separation membrane module 110 according to the embodiment of the present invention.

The separation membrane module 110 according to the embodiment includes a plurality of separation membranes 1110 of FIG. 6 and a cassette 1130 of FIG. 8 for mounting a plurality of separation membranes 1110 in multiple stages, 7 as a means for mediating the mounting of the cartridge 1110 to the cassette 1130. The cartridge 1120 of FIG.

Each of the plurality of separation membranes 1110 corresponds to each of the plurality of cartridges 1120 in a one-to-one correspondence to constitute one assembly and the assembly of the separation membrane 1110 and the cartridges 1120 may be plurally arranged in the longitudinal direction of the cassette 1130 And are tightly arranged and fixed to each other. The separation membrane 1110 and the cartridge 1120 can be coupled with each other using an adhesive such as epoxy at the contact portion (not shown), and the assembly of the separation membranes 1110, 1120 can be coupled and fixed using screws or the like at a portion where the cassette 1130 is in contact with the cassette 1130 (not shown).

The gap 117A is formed between the outer surface of the separator 1110 and the inner surface of the cartridge 1120 and the inner surface of the cassette 1130 in the assembled state, 117A serve as a filtering water passage through which the filtered water filtered by the separation membrane 1110 is collected. In this case, the cartridge 1120 can be coupled to the cassette 1130 through a sealing O-ring using a screw or the like (not shown) at a portion contacting the cassette 1130.

Referring to FIG. 6, the separation membrane 1110 has a planar circular plate shape. The separation membrane 1110 may be formed of a ceramic material having fine pores (not shown) formed therein for solid-liquid separation. The separation membrane 1110 includes upper and lower surface portions 1116, a straight line portion 1114, and a curved portion 1112.

Referring to FIG. 7, the cartridge 1120 has a substantially planar arcuate shape like the separation membrane 1110. A slit 1122 for inserting the separation membrane 1110 is provided on the arc-shaped curved portion side of the cartridge 1120. Grooves 1124a for accommodating the linear portion 1114 and the central portion of the separation membrane 1110 are formed inside the straight portion 1124 and the central portion 1125 of the cartridge 1120. [ On the upper and lower surfaces of the cartridge 1120, a tread 1126 for exposing the upper and lower surface portions 11160 of the separation membrane 1110 is formed. At both ends of the arc-shaped curved portion side of the cartridge 1120, an extension portion 1129 that extends linearly outward in the radial direction is formed. The extended portion 1129 of the cartridge 1120 allows the curved portion 1112 of the separation membrane 1110 to be spaced apart from the inner wall surface of the cassette 1130, And serves to define a boundary in a circumferential direction with respect to a gap 117A.

7, the upper and lower surface portions 1116 and the curved portion 1112 of the separation membrane 1110 are connected to the trough 1126 of the cartridge 1120 and the slit 1112 of the cartridge 1120, The linear portion 1114 and the central portion of the separation membrane 1110 are accommodated in the groove 1124a of the cartridge 1120 and are concealed. 10, after the suspension flows into the surface portion 1116 of the separation membrane 1110, the separation membrane 1110 is formed in a curved shape of the separation membrane 1110, Lt; RTI ID = 0.0 > 1112 < / RTI > 10 is a schematic diagram showing a filtration process by the separation membrane 1110. FIG.

The center portion 1125 of the cartridge 1120 has a tapered end and is inserted and supported in the groove 232 of the support member 220 selectively provided in the cleaning unit 200 as described later.

Referring to FIG. 8, the cassette 1130 has a substantially circular cross-sectional arcuate shape like the planar shape of the separation membrane 1110 and the cartridge 1120, and is a generally curved surface member. The cassette 1130 mounts the plurality of separation membranes 1110 and the assembly of cartridges 1120 in a multistage manner in the longitudinal direction so that the clearance between the outer peripheral surface of the separation membrane 1110 and the cartridge 1120 and the inner wall surface thereof, (117A). More specifically, a groove 1132 is formed in the inner surface of the cassette 1130 and the opening of the groove 1132 is sealed by the outer peripheral surface of the separation membrane 1110 and the cartridge 1120 assembly, And is formed as a passage 117A. The lower end of the cassette 1130 is formed with a filtered water outlet 1137 communicating with the groove 1132. A reduced pressure pump (not shown) may be connected to the filtered water outlet 1137.

On the other hand, the circumferential side surface of the cassette 1130 has a stepped shape and is composed of a first side surface portion 1134a, a second side surface portion 1134b and a third side surface portion 1134c from the outermost side.

When the plurality of membrane modules 110 are combined with the frame 120 to form one filtration unit 100, the first side portions 1134a are elements in which the membrane modules 110 adjacent to each other in the circumferential direction are in contact with each other And the second side portion 1134b is an element abutting the connection portion 124 of the frame 120. [ In this case, the circumferential distance difference d1 between the first side surface portion 1134a and the second side surface portion 1134b is 1/2 of the circumferential thickness of the connecting portion 124 of the frame 120.

The plurality of separation membrane modules 110 are combined with the frame 120 to constitute the filtration unit 100 by the distance difference d1 in the circumferential direction between the first side surface portion 1134a and the second side surface portion 1134b The gap 117B is formed between the adjacent membrane modules 110 in the circumferential direction. As far as the gap 117B is concerned, it is essential that the outer circumferential length of the separation membrane 1110 be smaller than the circumferential inner circumferential length of the cassette 1130.

When the assembly of the separation membrane 1110 and the cartridge 1120 is engaged with the cassette 1130, the third side portion 1134c is an abutting element of the extension portion 1129 of the cartridge 1120. In this case, The distance difference d2 in the circumferential direction between the third side surface portion 1134b and the third side surface portion 1134c is equal to the circumferential thickness of the cartridge 1120 extended portion 1129. [

The cleaning unit (Fig. 11 To  14)

11 shows a perspective view, a plan view and a longitudinal sectional view of the cleaning unit 200 according to the embodiment of the present invention.

The cleaning unit 200 is coupled to the interior of the filtration unit 100 according to Fig. The cleaning unit 200 basically includes the rotating member 220 of FIG. 12 inserted between the separation membranes 1110 installed in the multi-stage in the filtration unit 100. In the embodiment, the cleaning unit 200 is provided with the shaft rod 210 of FIG. 13 separately from the rotary member 220, and the rotary member 220 is inserted into the shaft rod 210 at regular intervals . In addition, the cleaning unit 200 may optionally include a support member 230 of FIG. 14 that supports the center portion 1125 of the cartridge 1120. The support member 230 is inserted into the shaft rod 210 at regular intervals as in the rotation member 220 and alternately installed with the rotation member 220.

12, the rotary member 220 includes a cross-shaped rotary vane 222 extending in the radial direction, and a rectangular hole 224 is formed at the center of the rotary member 220 in conformity with the cross- Respectively. 13, the shaft rod 210 is rod-shaped and has a rectangular cross-sectional shape similar to the shape of the hole 224 of the rotary member 220. As shown in FIG. A projection 216A engaging with a bearing 406 provided in a cap 400 described later is provided at the upper end of the shaft rod 210 and a projection 306A fitted to a bearing 306 provided in a concentrating unit 300 And a groove 216B is formed. The rotary member 220 inserted in the lower edge of the shaft rod 210 is integrally formed with an extension 219 for suppressing downward movement of the support member 230. Referring to FIG. 14, the support member 230 is ring-shaped, and at its center, a square hole 234 is formed in conformity with the sectional shape of the shaft rod, and a groove 232 is formed along the outer circumferential surface. The 'V' shape of the groove 232 corresponds to the tapered shape of the central portion 1125 of the cartridge 1120 so that the end of the cartridge 1120 on which the separation membrane 1110 is mounted, .

During the operation of the filtration and concentration apparatus 10, as the shaft rod 210 rotates by an external driving source (not shown), the rotary member 220 and the support member 230 rotate at the same time. The rotating member 220 does not pass through the separation membrane 1110 due to its rotational movement and moves the solid matter remaining on the surface of the separation membrane 1110 to flow through the gap 117B formed between the membrane module 110 adjacent in the circumferential direction And the cleaning operation for the surface of the separation membrane 1110 is performed at the same time. In this case, the rotational motion of the rotary member 220 forms a vortex between the upper and lower separation membranes 1110, so that the cleaning operation against the surface of the separation membrane 1110 can be performed more effectively. Although not shown in the drawing, the rotating blade 222 of the rotating member 220 is provided with a brush of an elastic material in the up-and-down direction, so that the moving to the solid material and the cleaning operation to the surface of the separating film 1110 Can be effectively performed.

15)

15 is a perspective view and a longitudinal sectional view of a concentration unit 300 according to an embodiment of the present invention. The concentrating unit 300 is provided in a funnel shape and is coupled to the lower end of the filtration unit 100. At the center of the lower end of the concentrating unit 300 is provided a discharge outlet 307 for the concentrated solids and a cruciform supporting portion 308 for supporting the shaft rod 210, which is the rotating shaft of the cleaning unit 200, And is integrally formed. A bearing 306 for engaging with the groove 216B of the shaft rod 210 is rotatably installed at the center of the support portion 308. [ A flange 309 is formed at an upper end periphery of the concentrating unit 300 to engage with a flange 129b formed along the periphery of the ring portion 122 of the frame 120. The flanges 129b and 309 are engaged with coupling means Not shown). In the operation of the filtration and concentration apparatus 10, the solids discharged sequentially through the gap 117B of the separation membrane module 110 constituting the filtration unit 100 are collected into the funnel-shaped concentration unit 300 And can be effectively concentrated. The solids collected in the concentration unit 300 are discharged to the outside through the discharge port 307. The lower end of the shaft rod 210 of the cleaning unit 200 is coupled to the bearing 306 of the support portion 308 and is rotatably supported.

The cap (Figure 16)

16 is a perspective view and a longitudinal sectional view of a cap 400 according to an embodiment of the present invention. The cap 400 has a vertically opened structure and is coupled to the upper end of the filtration unit 100. The side of the cap 400 is provided with a suspension inlet 407A and a counterflow 407B for discharging the unfiltered suspension to the outside. A cruciform support portion 408 for supporting the shaft rod 210 which is the rotation axis of the cleaning unit 200 is integrally formed at the center of the cap 400 and a supporting portion 408 A bearing 406 engaging with the projection 216A of the shaft rod 210 is rotatably installed. A flange 409 is formed at the lower edge of the cap 400 to engage with a flange 129a formed along the periphery of the ring portion 122 of the frame 120. The flanges 129a and 409 are engaged with coupling means ). ≪ / RTI > In operation of the filtration concentrator 10, the suspension flows from the outside into the inlet 407A and is fed to the filtration unit 100. [ The untreated suspension in filtration unit 100 is discharged through counterflow 407B and then reintroduced into inlet 407A. The upper end of the shaft rod 210 of the cleaning unit 200 is rotatably supported by engaging with the base rod 406 of the support portion 408.

Assembly, disassembly, expansion (FIG. 17) and operation

The process of assembling and disassembling the filtration and concentration apparatus 10 will be described. The assembly of the cleaning unit 200, the separation membrane module 110 and the cap 400 may be assembled in this order after the frame of the filtration and concentration apparatus 10 is formed using the concentration unit 300 and the frame 120 as a whole. do. First, the flange 309 of the concentration unit 300 is coupled to the flange 129b at the lower end of the frame 120. [ Next, the groove 216B provided at the lower end of the shaft rod 210 is engaged with the bearing 306 provided in the support portion 308 of the concentration unit 300. Next, by inserting the plurality of rotary members 220 and the support member 230 alternately into the shaft rod 210, the cleaning unit 200 comprising the shaft rod 210, the rotary member 220, and the support member 230, To complete the assembly process. The assembling process of the filtration unit 100 including the separation membrane module 110 and the frame 120 is performed by inserting and joining a plurality of separation membrane modules 110 previously provided in the receiving portion 126 of the frame 120 . In this case, the separation membrane 1110 of the separation membrane module 100, the cartridge 1120 assembly and the rotation member 220 of the cleaning unit 200 are alternately arranged in the longitudinal direction, and the center portion 1125 of the cartridge 1120 is supported Is inserted and supported in the groove (232) of the member (230). The separation membrane module 110 may be assembled by inserting the separation membrane 1110 through the slit 1122 of the cartridge 1120 to form an assembly and then forming a plurality of such separation membrane 1110 and cartridge 1120 assemblies In the longitudinal direction of the inner circumferential surface of the cassette 1130. Finally, the bearing 406 provided in the support portion 408 of the cap 400 is coupled to the projection 216A provided at the upper end of the shaft rod 210, and the flange 409 of the cap 400 is coupled to the frame 120, To the upper flange 129a of the filtration concentrator 10, thereby completing the assembly process for the filtration and concentration apparatus 10. Further, as shown in FIG. 17, the filtration and concentration apparatus 10 'according to the present invention includes the filtration units 100, 100', 100 "and the cleaning units 200, 200 ', 200" And can be extended in a multi-stage manner. Specifically, after separating the cap 400, the upper and lower flanges 129a and 129b provided on the frame 120 of the filtration units 100, 100 'and 100' 'are vertically coupled to each other, 100 ', 100' 'and the cleaning units 200, 200' 'in such a manner that the protrusions 216A and the grooves 216B provided in the shaft of the cleaning units 200, 200', 200 ' ', 200' ') to the upper end of the filtration unit 100, and then the separated cap 400 is recombined with the uppermost end of the filtration unit 100. On the other hand, the separation of the filtration and concentration apparatus 10 can be performed for selective replacement of the component elements and the like, and can be performed in the reverse order to the above assembly process.

Next, the operation of the filtration and concentration apparatus 10 according to the present invention will be described. This operation includes a filtration concentration process by the filtration concentrator 10 and a cleaning process for the filtration concentrator 10. The shaft rod 210 of the cleaning unit 200 is rotated by an external driving source (not shown), so that the rotating member 220 also rotates between the separation membrane 1110 and the cartridge 1120 assembly. A vacuum pump (not shown) is connected to the discharge port 1137 of the cassette 1130 so that a vacuum pressure can be applied. In this state, the suspension flows through the inlet 407A of the cap 400 and fills the interior of the filtration unit 100 and the concentration unit 300. [ The filtrate is discharged to the curved portion 1112 of the separation membrane 1110 and is discharged through the gap 117A to the outlet portion 1110. [ (1137). The remaining solids that have not passed through the separation membrane 1110 are accumulated on the surface of the separation membrane 1110 and these solids are moved by the rotational movement of the rotation member 220 to form gaps 117B to be concentrated in the funnel-shaped thickening unit 300. [0053] The concentrated solids are discharged to the outside through an outlet 307 of the concentrating unit 300. In this case, the swirling motion of the rotating member 220 and the swirling motion of the rotating member 220 are performed simultaneously with the rotation of the rotating member 220, The cleaning of the surface of the separation membrane 1110 and the movement of the solid material can be more effectively performed by the brush of the elastic material selectively provided in the rotary vane 222.

As described above, the filtration and concentration apparatus 10 according to the present invention includes a filtration unit 100 including a plurality of separation membrane modules 110 provided with a plurality of flat membrane type ceramic separation membranes 1110, The apparatus 10 is constructed with the cleaning unit 200 including the rotation member 220 alternately inserted into the separation membrane 1110 of the separation membrane 1110 and rotated simultaneously during the operation. The filtration and concentration apparatus 10 may further include a separator module 110 and a filtration unit 100 including the separation membrane module 110 and an assembly structure for the cleaning unit 200 and a filtration unit 100 for separating the filtration unit 100 and the cleaning unit 200 The coupling structure facilitates assembly and disassembly for maintenance of the device. In addition, the filtration and concentration apparatus 10 may be configured to elastically change the filtration capacity according to the working environment by combining the filtration unit 100 and the cleaning unit 200 in a single set.

The foregoing is a description of specific embodiments of the present invention. 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 or constructions. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. It should be understood that this is possible.

For example, in the embodiment, the axis of rotation of the cleaning unit 200, that is, the shaft rod 210 is illustrated as being supported by the cruciform supports 408, 308 provided in the cap 400 and the concentrating unit 300, 408, and 308 may be integrally formed at the upper end or the lower end of the frame 120 of the filtration unit 100. When the shaft rod 210 of the cleaning unit 200 and the rotary member 220 are integrally provided, the rotary member 220 is received and supported between the separation membranes 1110 provided in multiple stages, 200 may be dispensed with separately.

In addition, in the embodiment, the number of the separation membrane modules 110 is four, but is not limited thereto, and may be suitably increased or decreased as necessary. Further, the size of each of the separation membrane modules 110 does not necessarily have to be the same.

The cartridge 1120 is illustrated as including the cartridge 1120 in the embodiment, but the cartridge 1120 serves as a medium for mounting the separation membrane 1110 to the cassette 1130 And may optionally be included. That is, it is also possible that the separation membrane 1110 is directly coupled to the cassette 1130 by appropriately changing the shape of the separation membrane 1110 and / or the cassette 1130. In this case, a passage of filtering water must be formed between the curved portion 1112 of the separation membrane 1110 and the inner wall surface of the cassette 1130, and the linear portion 1114 of the separation membrane 1110 The passage of the filtration water must be suppressed through the use of a concealing member or surface treatment.

Also, in the embodiment, the grooves 1132 are formed on the inner surface of the cassette 1130 constituting one separation membrane module 110, but they may be formed as one.

Also in the embodiment, the rotary member 220 is illustrated as a cruciform rotary vane 222, but the shape and number of the rotary vane 22 is not limited.

In the embodiment, the end portion of the shaft rod 210 constituting the rotation shaft of the cleaning unit 200 is rotatably supported via the bearings 306 and 406. However, the support portions 308 and 408 and the shaft rod It is also possible to omit these bearings 306 and 406 by machining the ends of the bearings 210 and 210. [

It is therefore to be understood that all such modifications and alterations are intended to fall within the scope of the invention as disclosed in the following claims or their equivalents.

10: Filtration concentrator
100: Filtration unit 110: Separation membrane module
1110: Separator 1112: Curved portion
1114: straight line portion 1116: surface portion
1120: cartridge 1122: slit
1124: straight portion 1124a: groove
1125: center portion 1126:
1129: extension part 1130: cassette
1132: groove 1134a: first side portion
1134b: second side portion 1134c: third side portion
1137: outlet 120: frame
122: ring part 124: connection part
126: receiving portion 129a, 129b: flange
200: Cleaning unit
210: shaft rod 216A: projection
216B: groove 219: extension part
220: rotating member 222: rotating blade
224: hole 230: support member
232: groove 234: hole
300: enrichment unit
306: Bearing 307: Outlet
308: Support 309: Flange
400: cap
406: Bearing 407A: Inlet
407B: counterflow 408: support
409: Flange

Claims (16)

A filtration unit; And a cleaning unit, wherein the filtration unit comprises: a separation membrane module having a plurality of separation membranes and having a filtrate water outlet; And a frame for mounting the separation membrane module in a plurality of circumferential directions, wherein the cleaning unit includes a plurality of rotation members inserted alternately with the separation membrane and rotated about a central axis of the frame, Wherein a gap inside the side wall is formed as a filtration water passage, and a gap between the plurality of separation membrane modules mounted on the frame is formed as a solid material passage.
The apparatus of claim 1, wherein the separator module comprises: a plurality of planar arcuate separators; And a cross-sectional arc-shaped cassette in which a plurality of separation membranes are mounted in multiple stages, wherein a gap between the cassette and the plurality of separation membranes is formed as a filtration water passage.
The filtration concentrator of claim 2, wherein the separation membrane module further comprises a cartridge mounted to the cassette with the separation membrane mounted thereon, wherein the separation membrane and the cartridge assembly are mounted in multiple stages in the cassette.
The filtration concentrator according to claim 2, wherein a groove for the filtration water passage is formed inside the cassette.
The filtration concentrator according to claim 1, wherein the cleaning unit further comprises a support member provided alternately with the rotating member along the rotation axis to support an end side of the separation membrane.
The filtration concentrator according to claim 5, wherein the rotary member and the support member are provided integrally or separately from the shaft rod constituting the rotary shaft.
The filtration concentrator according to claim 5, wherein the rotary member is provided with a brush.
The filtration concentrator of claim 1, further comprising a concentration unit coupled to a lower end of the filtration unit and having a solids outlet.
The filtration concentrator according to claim 8, wherein the concentration unit is provided with a support for rotatably supporting the cleaning unit.
The filtration concentrator of claim 1, further comprising a cap coupled to an upper end of the filtration unit and having a suspension inlet and a counterflow.
11. The filtration concentrator according to claim 10, wherein the cap has a support for rotatably supporting the cleaning unit.
The filtration concentrator of claim 1, wherein the filtration unit and the assembly of the cleaning unit are provided in a plurality and are coupled in series.
1. A separation membrane module comprising a plurality of separation membranes in multiple stages and provided with a filtered water soccer, comprising: a plurality of planar arcuate separation membranes; And a plurality of separation membranes are mounted in a multi-stage, wherein a gap between the cassette and the plurality of separation membranes is formed as a filtration water passage.
14. The separation membrane module according to claim 13, wherein a length of an outer peripheral surface of the separation membrane is smaller than an inner peripheral surface length of the cassette
14. The separation membrane module of claim 13, further comprising a cartridge mounted to the cassette with the separation membrane mounted thereon, wherein the separation membrane and cartridge assembly are mounted in multiple stages in the cassette.
14. The separation membrane module as claimed in claim 13, wherein a groove for the filtration water passage is formed inside the cassette.
KR1020150142988A 2015-10-13 2015-10-13 Ceramic membrane module and filtering-condensing apparatus provided with the same KR101760674B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200043704A (en) * 2018-10-18 2020-04-28 주식회사 서진에너지 Double rotating apparatus for ammonia stripping without electric power
KR20200107195A (en) 2019-03-06 2020-09-16 고려대학교 산학협력단 Ceramic membrane and the manufacturing method thereof

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
KR200344234Y1 (en) * 2003-12-04 2004-03-11 임종순 A sewage treatment apparatus by membrane
KR100501524B1 (en) * 2004-03-11 2005-07-18 주식회사 환경비젼이십일 Rotor for generating vortex flow, and filtering apparatus employing the same
JP5005180B2 (en) 2005-03-30 2012-08-22 三菱化工機株式会社 Centrifugal membrane device
KR101430104B1 (en) 2014-06-26 2014-08-14 (유)일토씨엔엠 Wastewater Disposal Apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200043704A (en) * 2018-10-18 2020-04-28 주식회사 서진에너지 Double rotating apparatus for ammonia stripping without electric power
KR20200107195A (en) 2019-03-06 2020-09-16 고려대학교 산학협력단 Ceramic membrane and the manufacturing method thereof

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