KR200406330Y1 - Filter for Water Treatment Having Citric Acid Feeding Line - Google Patents

Filter for Water Treatment Having Citric Acid Feeding Line Download PDF

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Publication number
KR200406330Y1
KR200406330Y1 KR2020050031544U KR20050031544U KR200406330Y1 KR 200406330 Y1 KR200406330 Y1 KR 200406330Y1 KR 2020050031544 U KR2020050031544 U KR 2020050031544U KR 20050031544 U KR20050031544 U KR 20050031544U KR 200406330 Y1 KR200406330 Y1 KR 200406330Y1
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South Korea
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citric acid
washing
filtration
line
water
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KR2020050031544U
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Korean (ko)
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정용식
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(주)선일 엔바이로
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/04—Backflushing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/162—Use of acids

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

본 고안은 구연산공급라인이 구비되어 있어서 여과과정에서 여재에 축적된 이물을 세척함에 있어서 그 세척효율을 높일 수 있는 여과장치에 관한 것이다. 본 고안의 여과장치(1)는, 여과탱크(10); 상기 여과탱크(10)에 설치되고 여재(21)가 구비된 여과부재(20); 상기 여과부재(20)로 오염된 원수를 공급하는 원수공급라인(30); 상기 여과부재(20)의 여재(21)에 의해 이물이 제거된 후에 상기 여과탱크(10)로 흘러나온 처리수를 상기 여과탱크(10)로부터 배출하는 처리수배출라인(40); 상기 여과부재(20)에 의해 걸러진 이물을 배출하는 이물배출라인(50); 상기 여재(21)에 부착된 이물을 세척하기 위해 세척수를 상기 여재(21)로 분사하도록 펌프(61)와 노즐(62)을 구비한 세척라인(60); 및 상기 세척라인(60)으로 공급되는 상기 세척수에 구연산을 혼합시키기 위한 구연산공급라인(70); 을 포함한다. 바람직하게 상기 구연산공급라인(70)은, 구연산저장탱크(71), 상기 구연산저장탱크(71)와 상기 세척라인(60) 사이에 설치되어 공급되는 구연산을 조절하는 조절밸브(72), 및 상기 구연산공급라인(70)과 상기 세척라인(60)의 연결부위에 설치되어 상기 구연산공급라인(70)의 구연산과 상기 세척라인(60)의 처리수를 혼합하는 벤투리관(73)을 포함한다.The present invention is provided with a citric acid supply line relates to a filtration device that can increase the washing efficiency in washing the foreign matter accumulated in the filter medium during the filtration process. Filtration device 1 of the present invention, the filtration tank 10; A filtration member 20 installed in the filtration tank 10 and provided with a filter medium 21; Raw water supply line 30 for supplying the raw water contaminated with the filtration member 20; A treated water discharge line 40 discharging the treated water flowing into the filtration tank 10 after the foreign matter is removed by the filter medium 21 of the filtration member 20 from the filtration tank 10; A foreign substance discharge line 50 for discharging the foreign substance filtered by the filtration member 20; A washing line (60) having a pump (61) and a nozzle (62) to spray washing water to the filter medium (21) for washing the foreign matter attached to the filter medium (21); And citric acid supply line (70) for mixing citric acid in the washing water supplied to the washing line (60); It includes. Preferably, the citric acid supply line 70, the control valve 72 for adjusting the citric acid is installed and supplied between the citric acid storage tank 71, the citric acid storage tank 71 and the washing line 60, and the It is installed on the connection portion of the citric acid supply line 70 and the washing line 60 includes a venturi tube 73 for mixing the citric acid of the citric acid supply line 70 and the treated water of the washing line 60. .

Description

구연산공급라인이 구비된 수처리용 여과장치{Filter for Water Treatment Having Citric Acid Feeding Line}Filter for Water Treatment Having Citric Acid Feeding Line

도1은 본 고안에 따른 예시적인 수처리용 여과장치의 개략도,1 is a schematic view of an exemplary water treatment filtration device according to the present invention,

도2는 본 고안의 여과장치에 적용된 예시적인 구연산공급라인의 개략도,Figure 2 is a schematic diagram of an exemplary citric acid supply line applied to the filtration device of the present invention,

도3과 도4는 종래의 드럼필터식 여과장치의 개략 측면도 및 정면도.3 and 4 are schematic side and front views of a conventional drum filter type filtration apparatus.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1: 본 고안의 여과장치 10: 여과탱크1: filtration device 10 of the present invention: filtration tank

20: 여과부재 21: 여재20: filter member 21: media

30: 원수공급라인 40: 처리수배출라인30: raw water supply line 40: treated water discharge line

50: 이물배출라인 51: 호퍼50: foreign material discharge line 51: hopper

60: 세척라인 61: 펌프60: washing line 61: pump

62: 노즐 63: 압력계62: nozzle 63: pressure gauge

70: 구연산공급라인 71: 구연산저장탱크70: citric acid supply line 71: citric acid storage tank

72: 조절밸브 73: 벤투리관72: control valve 73: venturi tube

(기술분야)(Technology)

본 고안은 수처리용 여과장치에 관한것이며, 보다 상세하게는 구연산공급라인이 구비되어 있어서 여과과정에서 여재에 축적된 이물을 세척함에 있어서 그 세척효율을 높일 수 있는 여과장치에 관한 것이다.The present invention relates to a filtration device for water treatment, and more particularly to a filtration device that is equipped with citric acid supply line to increase the washing efficiency in washing the foreign matter accumulated in the filter medium during the filtration process.

(배경기술)(Background)

오폐수처리장의 고도처리, 소규모 마을하수나 하수처리장의 부유고형물, 하천과 호소의 부유고형물, 공업용수의 부유고형물, 양어장의 부유고형물 등, 각종 수처리공정에 있어서의 부유(고형)물의 제거에는 각종 여과장치가 사용된다.Various filtration for removal of suspended solids in various water treatment processes, such as advanced treatment of wastewater treatment plants, suspended solids in small village sewage and sewage treatment plants, suspended solids in rivers and lakes, suspended solids in industrial water, and suspended solids in fish farms. The device is used.

이들 수처리용 여과장치는 드럼필터, 진공필터, 디스크필터, 모래식 필터 등 다양한 종류가 있다. 예를 들어 디스크 필터는 여재가 장착된 디스크 형상의 단위 디스크블록을 동일 회전축 상에 다수 장착한 구조로서, 오염된 원수를 회전 디스크에 투입하여 여재에 의해 부유고형물이 필터링되게 하고, 부유물이 제거된 처리수를 걸러진 부유물과 분리하여 배출하는 여과장치이며, 회전축에 장착되는 단위 디스크블록의 개수를 조절함으로써 처리 용량을 조절할 수 있는 특징이 있다.There are various kinds of filtration apparatuses for water treatment such as drum filters, vacuum filters, disk filters, sand filters, and the like. For example, the disk filter is a structure in which a large number of unit disk blocks having a disk shape on which a filter is mounted is mounted on the same rotation axis, and contaminated raw water is input to the rotating disk so that the suspended solids are filtered out by the filter. It is a filtration device that separates the treated water from the filtered suspended solids, and has a characteristic that the treatment capacity can be adjusted by adjusting the number of unit disc blocks mounted on the rotating shaft.

드럼필터는 회전식 드럼의 드럼 둘레에 여재(예, 여과망)를 장착한 구조로서, 오염된 원수를 회전 드럼에 투입하여 여재에 의해 부유고형물이 필터링되게 하 고, 부유물이 제거된 처리수를 걸러진 부유물과 분리하여 배출하는 여과장치이다.The drum filter is a structure in which a filter medium (for example, a filtering net) is mounted around a drum of a rotating drum, and contaminated raw water is put into a rotating drum to filter the suspended solids by the filter medium, and the suspended solids are filtered out of the treated water. It is a filtration device that separates and discharges.

이들 여과장치에는 필터링된 고형물과 같은 이물에 의해 여재가 막힐 수 있으며, 이런 여재 막힘을 세척하기 위해서 여재를 수세를 하게 된다. 일반적으로 여재의 수세는 여과장치에 의해 처리되어 부유고형물이 제거된 처리수(예, 처리수의 2-3% 정도)를 다시 여재로 순환시켜서 역수세로 세척하고 있다.In these filtration devices, the filter media may be blocked by foreign matter such as filtered solids, and the filter is washed with water to clean the filter media. In general, the water washing of the filter medium is treated by a filtration device to circulate the treated water (e.g., about 2-3% of the treated water) from which the suspended solids are removed, and then washed with backwashing.

도3과 도4는 종래의 드럼필터식 여과장치의 개략 측면도 및 정면도이다.3 and 4 are schematic side and front views of a conventional drum filter type filtration apparatus.

도시된 바와 같이, 종래의 여과장치(100)는 여과탱크(110), 상기 여과탱크(110)에 회전 가능하게 지지되고 여재(121)가 구비된 회전드럼(120), 상기 회전드럼(120)으로 오염된 원수를 공급하는 원수공급라인(130), 상기 회전드럼(120)의 여재(121)에 의해 부유고형물이 제거된 후에 상기 여과탱크(110)로 흘러나온 처리수를 상기 여과탱크(110)로부터 배출하는 처리수배출라인(140), 여재(121)에 의해 걸러진 이물을 배출하기 위한 이물배출라인(150), 상기 여재(121)에 부착된 이물을 역세하기 위해 상기 처리수를 상기 회전드럼(120)으로 고압 분사하도록 펌프(161)와 다수의 노즐(162)을 구비한 역세라인(160)을 포함한다.As shown, the conventional filtration device 100 is a filtration tank 110, a rotating drum 120, rotatably supported by the filtration tank 110, and provided with a filter medium 121, the rotating drum 120 After the suspended solids are removed by the raw water supply line 130 and the filter medium of the rotary drum 120 to supply the raw water contaminated by the filtered tank 110 to the filtered water 110 Rotating the treated water to backwash the foreign matter attached to the filter medium discharge line 150, the foreign material discharge line 150 for discharging the foreign matter filtered by the filter medium 121, discharged from the filter medium (121) It includes a back washing line 160 having a pump 161 and a plurality of nozzles 162 to spray high pressure to the drum (120).

그러나, 종래 여과장치(100)는 그 수명이 오래 되었거나 원수의 오염도가 심하게 되면, 단지 고압의 수세만으로 여재(121)에 달라붙은 이물이 잘 세척되지 않게 되고, 특히 여과장치를 사용하지 않는 동안에 여재(121)에 부착된 이물에 이끼나 조류 등이 번식하여 슬러지화 되면 수세만으로 이를 세척하기가 더욱 어렵게 되었으며, 이로 인하여 여과장치(100)의 여과효율이 저하되는 문제점이 있었고, 아울러 여재(121)의 세척을 위해 여재를 분리하여 세척하거나 교환하는 작업이 빈번해 지고 이로써 잦은 작업중단과 여재 수명단축으로 인한 운영비용의 증가도 야기하였다.However, if the filter device 100 has a long lifespan or a high pollution level of raw water, foreign substances stuck to the filter medium 121 may not be washed well with only high-pressure water washing. In particular, the filter medium may not be used while the filter device is not used. Moss or algae in the foreign matter attached to (121) breeding and sludge becomes more difficult to wash it only by washing with water, thereby causing a problem that the filtration efficiency of the filtration device 100 is lowered, and also the filter medium (121) Separation and cleaning or replacement of media for cleaning has become frequent, which has led to increased operating costs due to frequent downtime and shortened media life.

본 고안의 목적은 수처리용 여과장치에 있어서 여재의 수세력을 향상시킴으로써 전술한 바와 같은 종래의 수처리용 여과장치에서의 여재 수세 불량으로 야기되는 여과성능저하, 잦은 작업중단 및 운용비용증가의 문제점을 해소하기 위한 것이다.The object of the present invention is to improve the water washing power of the filter medium for water treatment, thereby reducing the filtration performance caused by poor filter water washing in the conventional water treatment filtration device as described above, frequent work interruption and increase in operating cost. It is to solve.

본 고안에 따라 구연산공급라인이 구비된 수처리용 여과장치가 제공된다.According to the present invention there is provided a filtration device for water treatment provided with a citric acid supply line.

본 고안에 따른 수처리용 여과장치는, 여과탱크, 상기 여과탱크에 설치되고 여재가 구비된 여과부재, 상기 여과부재로 오염된 원수를 공급하는 원수공급라인, 상기 여과부재의 여재에 의해 이물이 제거된 후에 상기 여과탱크로 흘러나온 처리수를 상기 여과탱크로부터 배출하는 처리수배출라인, 상기 여과부재에 의해 걸러진 이물을 배출하는 이물배출라인, 상기 여재에 부착된 이물을 세척하기 위해 세척수를 상기 여재로 분사하도록 펌프와 노즐을 구비한 세척라인, 및 상기 세척라인으로 공급되는 상기 세척수에 구연산을 혼합시키기 위한 구연산공급라인을 포함한다.In the filtration device for water treatment according to the present invention, the foreign matter is removed by the filtration tank, a filtration member installed in the filtration tank is provided with a filter medium, a raw water supply line for supplying the raw water contaminated by the filtration member, the media of the filtration member After the treated water discharged from the filtration tank after the treated water flows out of the filtration tank, a foreign substance discharge line for discharging the foreign substances filtered by the filtration member, washing water to wash the foreign substances attached to the filter medium It includes a washing line having a pump and a nozzle to spray into, and the citric acid supply line for mixing citric acid in the washing water supplied to the washing line.

바람직하게 상기 세척라인은 상기 여과부재에 의해 이물이 걸러진 처리수를 세척수로 사용하는 역세라인이다. Preferably, the washing line is a back washing line using the treated water filtered by the filtration member as the washing water.

바람직하게 상기 구연산공급라인은, 구연산저장탱크, 상기 구연산저장탱크와 상기 세척라인 사이에 설치되어 공급되는 구연산을 조절하는 조절밸브, 및 상기 구 연산공급라인과 상기 세척라인의 연결부위에 설치되어 상기 구연산공급라인의 구연산과 상기 세척라인의 처리수를 혼합하는 벤투리관을 포함한다.Preferably, the citric acid supply line, the control valve for adjusting the citric acid is installed between the citric acid storage tank, the citric acid storage tank and the washing line, and is installed in the connection portion of the citric acid supply line and the washing line And a venturi tube for mixing citric acid of the citric acid supply line and the treated water of the washing line.

이하, 첨부도면을 참조하여 본 고안에 따른 구연산공급라인이 구비된 수처리용 여 과장치를 상세히 설명한다. 이하의 구체예는 본 고안에 따른 구연산공급라인이 구비된 수처리용 여과장치를 예시적으로 설명하는 것일 뿐, 본 고안의 범위를 제한하는 것으로 의도되지 아니한다.Hereinafter, with reference to the accompanying drawings will be described in detail the water treatment filtration device equipped with citric acid supply line according to the present invention. The following embodiments are merely illustrative of the water treatment filtration device equipped with citric acid supply line according to the present invention, it is not intended to limit the scope of the present invention.

도1은 본 고안에 따른 예시적인 수처리용 여과장치의 개략도, 도2는 본 고안의 여과장치에 적용된 예시적인 구연산공급라인의 개략도이다.1 is a schematic diagram of an exemplary filtration device for water treatment according to the present invention, and FIG. 2 is a schematic diagram of an exemplary citric acid supply line applied to the filtration device of the present invention.

도시된 바와 같이, 본 고안에 따른 수처리용 여과장치(1)는 오염된 원수를 여재에 통과시켜 원수 중에 포함된 이물을 여과하는 방식의 수처리용 여과장치이다.As shown, the water treatment filtration device 1 according to the present invention is a filtration device for water treatment of the contaminated raw water through the filter medium to filter foreign matter contained in the raw water.

본 고안의 여과장치(1)는, 종래의 수처리용 여과장치와 마찬가지로, 여과탱크(10), 여과부재(20), 원수공급라인(30), 처리수배출라인(40), 이물배출라인(50), 세척라인(60)을 기본적으로 포함한다.The filtration device 1 of the present invention, like the conventional filtration device for water treatment, the filtration tank 10, the filtration member 20, the raw water supply line 30, the treated water discharge line 40, the foreign material discharge line ( 50), the washing line 60 is basically included.

여과탱크(10)는 과부재(20)에 의해 이물이 걸러진 처리수가 배출에 앞서 일시 저장되는 탱크이며, 내부에는 여재부재(20)가 그 여과 기능을 수행하기 좋게 장착된다.The filtration tank 10 is a tank in which the treated water filtered by the excess member 20 is temporarily stored prior to discharge, and the media member 20 is mounted therein to perform the filtration function.

여과부재(20)는 여과탱크(10)에 설치되어 원수로부터 이물을 걸러내는 부재로서 여과망과 같은 여재(21)가 구비되어 있다. 본 고안에 적용되는 여과부재(20)는 첨부도면에서는 드럼식을 예시하고 있지만 드럼식은 물론 전술한 디스크식뿐만 아니라 여재를 사용하고 세척하는 방식의 모든 여과부재가 포함된다.The filtration member 20 is installed in the filtration tank 10 to filter foreign matter from raw water, and is provided with a filter medium 21 such as a filtration net. The filtration member 20 applied to the present invention exemplifies the drum type in the accompanying drawings, but includes all the filtering members of the drum type as well as the above-described disk type as well as the method of washing and using the media.

여과부재(20: 드럼)로의 오염된 원수 공급은 원수공급라인(30)에 의해 이루어진다. 원수공급라인(30)으로부터 공급된 원수는 여과부재(20)의 안으로 유입되어 여재(21)를 통과하면서 이물을 여과하며, 따라서 원수는 여과부재(20: 드럼)의 안에 있게 되고, 여과를 거친 처리수는 여과탱크(10)에 있게 된다.The contaminated raw water supply to the filtration member 20 (drum) is made by the raw water supply line 30. The raw water supplied from the raw water supply line 30 flows into the filtering member 20 and filters the foreign substances while passing through the filter medium 21, so that the raw water is in the filtering member 20 (drum) and undergoes filtration. The treated water is in the filtration tank 10.

여과부재(20)에 의해 여과 처리된 처리수는 배출되기에 앞서 여과탱크(10)에 유지되고, 여과탱크(10)의 처리수는 여과탱크(10)에 연결된 처리수배출라인(40)을 통해 여과탱크(10)의 외부로 배출되며, 이렇게 배출된 처리수는 다음 처리단계로 이송되거나 방류된다.The treated water filtered by the filtration member 20 is maintained in the filtration tank 10 before being discharged, and the treated water of the filtration tank 10 is connected to the treated water discharge line 40 connected to the filtration tank 10. Is discharged to the outside of the filtration tank 10 through, the discharged treated water is transferred or discharged to the next treatment step.

또한, 여재(21)에 의해 걸러진 이물들은 예를 들어 이물을 수집하여 배출하기 좋은 호퍼(51)와 같은 구조물을 구비하는 이물배출라인(50)을 통해 외부로 배출되며, 배출된 이물은 이후의 폐기물 처리과정에 따라 처리된다.In addition, the foreign substances filtered by the filter medium 21 are discharged to the outside through the foreign substance discharge line 50 having a structure such as a hopper 51 for collecting and discharging the foreign substance, for example, the foreign substance discharged after It is disposed of according to the waste disposal process.

이와 같은 일련의 여과과정에 의하면, 이물을 포함하고 있던 원수는 그 이물이 여과부재(20)에 의해 필터링된 후에맑은 처리수가 되어 배출되며, 걸러진 이물은 적절한 공정을 거쳐서 처리되게 되므로, 각종 부유고형물을 포함한 오폐수를 정화된 물로 처리할 수 있게 된다.According to such a series of filtration processes, the raw water containing the foreign matter is discharged as clear treated water after the foreign matter is filtered by the filtration member 20, and the filtered foreign matter is processed through an appropriate process, so that the various suspended solids It will be possible to treat the waste water, including purified water.

여과장치(1)의 사용이 진행됨에 따라 상기 여재(21)의 여과능력이 저하되게 된다. 예를 들어, 여재(21)로서 여과망을 사용하는 경우 이물들이 여과망의 그물눈에 침적되어 그물눈이 막히게 하며, 이럴 경우 여과장치(1)의 여과성능이 저하된다.As the use of the filtration device 1 proceeds, the filtration capacity of the filter medium 21 is lowered. For example, in the case of using the filtering net as the filter medium 21, foreign substances are deposited in the mesh of the filtering net so that the mesh is clogged. In this case, the filtering performance of the filtering device 1 is reduced.

이런 여과성능의 저하를 방지하기 세척라인(60)이 구비되어 있다. 세척라인(60)은 원수보다 정화된 세척수(예를 들어 여과장치에 의해 여과 처리된 처리수)로 여재(21)에 묻은 이물을 세척하기 위한 라인이며, 바람직하게 상기 처리수배출라인(50)과 여과부재(20) 사이에 설치되어 이물이 걸러진 처리수를 세척수로 사용하는 일종의 역세라인을 형성한다.The washing line 60 is provided to prevent such a decrease in filtration performance. The washing line 60 is a line for washing the foreign matter attached to the filter medium 21 with the washing water (for example, the treated water filtered by a filtration device) rather than the raw water, and preferably the treated water discharge line 50. It is installed between the filtration member 20 and forms a kind of backwashing line using the treated water filtered with foreign matter as washing water.

세척라인(60)에는 고압의 분사가 가능하도록 펌프(61)와 노즐(62)을 포함하며, 펌 프(61)로 처리수를 고압(예, 4kg/cm2 이상) 공급하여 여재(21)를 향하여 노즐(62)로 처리수를 분사하는 방식으로 여재(21)를 세척한다.The washing line 60 includes a pump 61 and a nozzle 62 to enable high pressure injection, and supplies the treated material to the pump 61 at a high pressure (eg, 4 kg / cm 2 or more) to supply the filter medium 21. The filter medium 21 is cleaned by spraying the treated water toward the nozzle 62.

예를 들어, 이물에 의해 여재(21)가 막혀 여과율이 하락하게 되면 이로 인하여 탱크의 수위가 올라가게 되고, 어느 기준 이상으로 수위가 올라간 것을 수위계가 감지하면 상기 펌프(61)를 가동시켜 여재(21)를 세척하게 된다. 도면부호63은 세척라인(60)의 압력계이다.For example, when the filter medium is blocked by the foreign matter 21 and the filtration rate decreases, the water level of the tank rises, and when the water level gauge detects that the water level has risen above a certain standard, the pump 61 is operated to operate the filter ( 21). Reference numeral 63 is a pressure gauge of the washing line 60.

본 고안의 특징에 따라, 본 고안의 여과장치(1)에는 여재(21)의 세척을 위해 세척라인(60)으로 공급되는 세척수(예,역세라인의 처리수)에 구연산을 혼합하기 위한 구연산공급라인(70)이 포함되어 있다. According to the characteristics of the present invention, the filtration device 1 of the present invention is supplied with citric acid for mixing citric acid in the washing water (for example, the treated water of the back washing line) supplied to the washing line 60 for washing the filter medium (21) Line 70 is included.

세척라인(60)에 의한 여재(21)의 세척은 일반적인 상황에서는 매우 유효하지만 원수의 오염정도가 심각하거나 여재(21)에 침적된 이물에 이끼나 조류 등이 번식하여 이물이 슬러지화 된 경우 단지 세척수로만은 이물을 제거하기가 용이하지 않다.The washing of the media 21 by the washing line 60 is very effective in a general situation, but only when the foreign matter is seriously contaminated or when foreign substances are sludged due to the growth of moss or algae in the foreign substances deposited on the media 21. Roman is not easy to remove foreign objects.

널리 알려진 바와 같이, 생태계에서 분해가 용이하고 식용으로 사용될 정도 로 상대적으로 무해한 구연산(Citric Acid)은 인산을 대체하여 세척제 등으로 사용되고 있으며, 금속표면의 산화물을 제거, 보일러세척, 금속표면의 변색방지등에도 사용되는 세척력이 있는 성분이다.As is widely known, citric acid, which is easy to decompose in the ecosystem and is relatively innocuous for edible use, is used as a cleaning agent instead of phosphoric acid.It removes oxides from metal surfaces, washes boilers and prevents discoloration of metal surfaces. It is an ingredient that is used for washing.

이와 같은 배경에 따라, 본 고안의 여과장치(1)는 세척수로 여재(21)를 세척함에 있어서 세척수의 세척력을 강화시키면서도 처리수와 함께 방류되어도 크게 유해하지 아니한 구연산을 세척수에 적용할 수 있는 구연산공급라인(70)은 포함시킨 것이다.In accordance with this background, the filtration device 1 of the present invention is capable of applying citric acid, which is not significantly harmful even when discharged with treated water, while enhancing the washing power of the washing water in washing the filter medium 21 with the washing water. Supply line 70 is included.

구연산공급라인(70)은 세척라인(60)에 구연산을 공급할 수 있는 구조라면 특히 제한되지 아니하며, 예를 들어 구연산저장탱크(71), 구연산저장탱크(71)와 세척라인(60) 사이에 설치되어 공급되는 구연산의 양을 조절하는 조절밸브(72), 및 세척라인(60)과 구연산공급라인(70)의 연결부위에 설치되어 구연산공급라인(70)의 구연산과 세척라인(60)의 처리수를 혼합하는 벤투리관(73)을 포함하도록 구성할 수 있다.The citric acid supply line 70 is not particularly limited as long as it has a structure capable of supplying citric acid to the washing line 60, for example, installed between the citric acid storage tank 71, the citric acid storage tank 71 and the washing line 60. Control valve 72 for controlling the amount of citric acid that is supplied and is installed at the connection of the washing line 60 and the citric acid supply line 70 to process the citric acid and the washing line 60 of the citric acid supply line 70 It can be configured to include a venturi tube 73 for mixing the water.

상기 구연산공급라인(70)에 의하면, 세척라인(60)을 통해 고압의 처리수가 흐르는 동안 벤투리관(73)의 작용에 의해구연산저장탱크(71)로부터 세척라인(60)으로 구연산이 흡입되어 처리수에 균일하게 혼합되고, 이로써 여재(21)는 구연산과 처리수의 혼합수에 의해 세척되며, 따라서 여재(21)의 이물에 이끼나 조류 등이 번식한 경우라도 단지 세척수(처리수)만으로 여재(21)를 세척하는 것보다 더 강력하게 여재(21)를 세척해 낼 수 있다. 투입되는 구연산의 양은 세척수(역세 처리수) 1톤당 구연산 0.1g 내외가 혼합되는 정도로 할 수 있다.According to the citric acid supply line 70, the citric acid is sucked into the washing line 60 from the citric acid storage tank 71 by the action of the venturi tube 73 while the high-pressure treated water flows through the washing line 60 The filter medium is uniformly mixed with the treated water, whereby the filter medium 21 is washed by the mixed water of citric acid and the treated water. Thus, even if moss or algae is breeding in the foreign material of the filter medium 21, the filter medium is only washed with water (treated water). It is possible to wash the media 21 more powerfully than to clean the (21). The amount of citric acid added may be about 0.1g of citric acid per ton of wash water (backwashed water).

이상에서 설명한 본 고안에 따른 구연산공급라인이 구비된 수처리용 여과장치(1)에 의하면, 여재를 세척하는 세척수에 구연산을 공급하여 구연산이 포함된 세척수로 여재를 세척할 수 있으므로, 여재에 낀 이물에 이끼니 조류가 번식한 악조건의 경우에도 양호한 세척력을 나타내게 되고, 이로써 여재 수세 불량으로 야기될 수 있는 여과성능저하, 잦은 작업중단 및 운용비용증가의 문제점을 해소할 수 있을 것으로 기대된다.According to the water treatment filtration device (1) provided with the citric acid supply line according to the present invention described above, by supplying citric acid to the washing water for washing the filter medium can wash the filter medium with the wash water containing citric acid, foreign matter caught in the filter medium In case of bad conditions in which algae algae are breeding, they show good washing power, and thus, it is expected to solve the problems of deterioration in filtration performance, frequent interruption of work and increase in operating cost which can be caused by poor filter washing.

Claims (3)

여과탱크(10); 상기 여과탱크(10)에 설치되고 여재(21)가 구비된 여과부재(20); 상기 여과부재(20)로 오염된 원수를 공급하는 원수공급라인(30); 상기 여과부재(20)의 여재(21)에 의해 이물이 제거된 후에 상기 여과탱크(10)로 흘러나온 처리수를 상기 여과탱크(10)로부터 배출하는 처리수배출라인(40); 상기 여과부재(20)에 의해 걸러진 이물을 배출하는 이물배출라인(50); 상기 여재(21)에 부착된 이물을 세척하기 위해 세척수를 상기 여재(21)로 분사하도록 펌프(61)와 노즐(62)을 구비한 세척라인(60); 및 상기 세척라인(60)으로 공급되는 상기 세척수에 구연산을 혼합시키기 위한 구연산공급라인(70); 을 포함하는 것을 특징으로 하는, 구연산공급라인이 구비된 수처리용 여과장치.Filtration tank 10; A filtration member 20 installed in the filtration tank 10 and provided with a filter medium 21; Raw water supply line 30 for supplying the raw water contaminated with the filtration member 20; A treated water discharge line 40 discharging the treated water flowing into the filtration tank 10 after the foreign matter is removed by the filter medium 21 of the filtration member 20 from the filtration tank 10; A foreign substance discharge line 50 for discharging the foreign substance filtered by the filtration member 20; A washing line (60) having a pump (61) and a nozzle (62) to spray washing water to the filter medium (21) for washing the foreign matter attached to the filter medium (21); And citric acid supply line (70) for mixing citric acid in the washing water supplied to the washing line (60); Characterized in that it comprises a, citric acid supply line is equipped with a filtration device for water treatment. 제1항에 있어서, 상기 세척라인(60)은 상기 여과부재(20)에 의해 이물이 걸러진 처리수를 세척수로 사용하는 역세라인인 것을 특징으로 하는, 구연산공급라인이 구비된 수처리용 여과장치.According to claim 1, wherein the washing line 60 is characterized in that the backwash line using the treated water filtered by the filtration member 20 as the washing water, citric acid supply line is equipped with a filtration device for water treatment. 제1항 또는 제2항에 있어서, 상기 구연산공급라인(70)은, 구연산저장탱크(71), 상기 세척라인(60)에 공급되는 구연산을 조절하는 조절밸브(72), 및 상기 구연산공급 라인(70)과 상기 세척라인(60)의 연결부위에 설치되어 상기 구연산공급라인(70)의 구연산과 상기 세척라인(60)의 처리수를 혼합하는 벤투리관(73)을 포함하 는 것을 특징으로 하는, 구연산공급라인이 구비된 수처리용 여과장치.
Figure 112005064045806-utm00001
According to claim 1 or 2, The citric acid supply line 70, the citric acid storage tank 71, the control valve 72 for adjusting the citric acid supplied to the washing line 60, and the citric acid supply line It is installed on the connection portion of the 70 and the washing line 60, characterized in that it comprises a venturi tube 73 for mixing the citric acid of the citric acid supply line 70 and the treated water of the washing line 60 Filtration device for water treatment provided with citric acid supply line.
Figure 112005064045806-utm00001
KR2020050031544U 2005-11-07 2005-11-07 Filter for Water Treatment Having Citric Acid Feeding Line KR200406330Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100822461B1 (en) 2006-10-12 2008-04-16 이정규 Rotating pressing type solid separator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100822461B1 (en) 2006-10-12 2008-04-16 이정규 Rotating pressing type solid separator

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