KR100889960B1 - Control method of automatic cleanning filter device - Google Patents

Control method of automatic cleanning filter device Download PDF

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KR100889960B1
KR100889960B1 KR1020080086920A KR20080086920A KR100889960B1 KR 100889960 B1 KR100889960 B1 KR 100889960B1 KR 1020080086920 A KR1020080086920 A KR 1020080086920A KR 20080086920 A KR20080086920 A KR 20080086920A KR 100889960 B1 KR100889960 B1 KR 100889960B1
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South Korea
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filter
valve
raw water
discharge
treated water
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KR1020080086920A
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Korean (ko)
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신민철
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신민철
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Priority to PCT/KR2009/004840 priority patent/WO2010027166A2/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/01Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/16Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/35Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
    • B01D33/41Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in series connection
    • B01D33/42Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in series connection concentrically or coaxially
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions

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

Abstract

A method for controlling an automatic cleaning filter apparatus is provided to discharge high concentration of slurries by using a discharging screw located in a lower part of a main body, thereby preventing the filter from being re-contaminated. A method for controlling an automatic cleaning filter apparatus comprises the following steps. Raw water is filtered and compressed by dropping a filter(104) while a first valve(120) and a second valve(122) are closed. A discharging screw(106) is rotated to discharge slurries. The raw water is sucked and treated water is discharged by raising the filter while the first valve is opened. The first valve is closed before the filter reaches a top of the apparatus. The first valve is confirmed whether to close and raised again.

Description

자동 세척 필터 장치 제어 방법{Control method of automatic cleanning filter device}Control method of automatic cleanning filter device

본 발명은 필터 장치에 관한 것으로 특히 자동 세척되는 필터 장치의 제어 방법에 관한 것이다.The present invention relates to a filter device and in particular to a control method of a filter device which is automatically cleaned.

필터는 물과 같은 유체속에 함유된 고형물을 걸러내는 것을 일컫는다. 종래의 필터는 원수의 압력에 의하여 필터를 통과하는 과정에서 필터에 원수에 포함된 고형물이 걸러지게 되어 있다. 하지만, 이와 같은 필터는 원수의 압력이 충분하지 않은 경우에는 필터의 효율이 낮을 뿐만 아니라, 시간이 지남에 따라 필터의 구멍이 막히게 되어 처리 효율이 급격히 떨어지게 된다. 이를 방지하기 위해서는 필터를 교환하는 방법과 세척수를 거꾸로 흘려 세척하는 일명, 역세척 장치를 사용하는 방법이 있으나, 필터 교체나 역세척 장치를 사용하는 것은 비용을 증가시킨다는 문제점이 있다.A filter refers to the filtering of solids contained in a fluid such as water. In the conventional filter, the solids contained in the raw water are filtered out in the process of passing the filter by the pressure of the raw water. However, such a filter, when the pressure of the raw water is not enough, not only the filter efficiency is low, but also the hole of the filter is clogged over time, the treatment efficiency is drastically reduced. In order to prevent this, there is a method of replacing the filter and a method of using a backwashing device to wash the water by flowing the washing backwards, but using a filter replacement or a backwashing device has a problem of increasing the cost.

본 발명은 상기한 문제점을 해결하기 위하여 발명된 것으로 본 발명이 이루고자 하는 기술적 과제는 정화수와 고형물을 용이하게 분리함과 동시에 역세가 필요없이 항상 최적의 상태를 유지할 수 있도록 하는 자동 세척 필터 장치 제어 방법을 제공하는 것이다.The present invention has been invented to solve the above problems, the technical problem to be achieved by the present invention is to separate the purified water and solids easily and at the same time without the need for backwashing automatic cleaning filter device control method To provide.

상기 기술적 과제를 이루기 위한 본 발명에 따른 자동 세척 필터 장치는,Self-cleaning filter device according to the present invention for achieving the above technical problem,

하측에는 처리하고자 하는 대상인 원수가 유입되는 유입관과, 상측에는 필터링된 처리수가 배출되는 처리수 배출관이 부설되며 내부에는 고형 물질을 제거하는 필터, 및 바닥측에는 필터링되어 침적되는 슬러리를 외부로 배출시키는 배출 스크류를 구비하는 몸체;On the lower side, an inflow pipe into which raw water to be treated is introduced, and a treated water discharge pipe to which filtered treated water is discharged are disposed on the upper side, a filter to remove solid matters inside, and a filtered and deposited slurry on the bottom side to discharge to the outside. A body having a discharge screw;

상기 몸체 하단부의 원수 유입관에 설치되는 제1 밸브;A first valve installed at the raw water inlet pipe of the lower end of the body;

상기 몸체 상단부의 처리수 배출관에 설치되는 제2 밸브;A second valve installed at the treatment water discharge pipe of the upper end of the body;

상기 필터를 승하강시키는 필터 승하강부; 및A filter elevating unit for elevating the filter; And

상기 제1 밸브와 제2 밸브 및 필터 승하강부에 접속되며 상기 제1 밸브와 상기 제2 밸브가 닫혀진 상태에서 필터를 하강시켜 원수를 여과 및 압착하는 과정과, 배출 스크류를 회전시켜 슬러리를 배출하는 과정과, 상기 제1 밸브가 열려진 상태에서 필터를 상승시켜 원수를 흡입함과 동시에 처리수를 배출하는 과정과, 필터가 최상부에 도달하기전에 제1 밸브를 닫는 과정, 및 제1 밸브가 닫힘을 확인하고 상 기 필터를 추가 상승시키는 과정을 수행하도록 제어하는 제어부;를 포함하는 것을 특징으로 한다.A process of filtering and compressing raw water by lowering a filter in a state in which the first valve and the second valve are closed, and the first valve and the second valve are closed, and rotating the discharge screw to discharge the slurry; A process of discharging raw water by simultaneously raising the filter while the first valve is opened, discharging the treated water, closing the first valve before the filter reaches the top, and closing the first valve. And a controller configured to perform a process of checking and raising the filter further.

본 발명에 따른 자동 세척 필터 장치는 정화수와 고형물이 용이하게 분리됨은 물론, 종래의 필터들이 가지고 있는 문제인 필터의 막힘이 현저히 줄어든다는 효과가 있다. 또한, 자동차 엔진과 같이 여러 개의 필터를 조합하거나 병렬하여 연속적으로 필터링을 할 수 있으며, 세척수를 거꾸로 흘려 세척하는 일명, 역세가 필요없이 항상 필터가 최적의 상태를 유지할 수 있다는 효과도 있다.Self-cleaning filter device according to the present invention has the effect that the purified water and the solids are easily separated, as well as the clogging of the filter which is a problem with conventional filters is significantly reduced. In addition, several filters can be combined or arranged in parallel as in an automobile engine, and the filter can be kept in an optimal state at all times without the need for backwashing.

이하 첨부된 도면들을 참조하여 본 발명의 바람직한 실시예를 보다 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1에는 본 발명에 따른 자동 세척 필터 장치의 구조를 나타내었다. 도 1을 참조하면, 본 발명에 따른 자동 세척 필터 장치는 고형물질을 포함한 유체로부터 고형물질을 제거하는 필터 장치로서 하측에는 처리하고자 하는 대상인 원수가 유입되는 유입관(100)과, 상측에는 필터링된 처리수가 배출되는 처리수 배출관(102)이 부설되며 내부에는 고형 물질을 제거하는 필터(104), 및 바닥측에는 필터링되어 침적되는 슬러리를 외부로 배출시키는 배출 스크류(106)를 구비하는 몸체(10)와;Figure 1 shows the structure of the automatic cleaning filter device according to the present invention. Referring to Figure 1, the automatic cleaning filter device according to the present invention is a filter device for removing the solid material from the fluid containing the solid material in the lower inlet tube 100, the raw water to be treated to be treated, and filtered on the upper side The body 10 having a treatment water discharge pipe 102 through which the treated water is discharged and having a filter 104 for removing solid matter therein and a discharge screw 106 for discharging the slurry to be filtered and deposited on the bottom side to the outside. Wow;

상기 몸체(10) 하단부의 원수 유입관에 설치되는 제1 밸브(120)와;A first valve 120 installed at a raw water inlet pipe at a lower end of the body 10;

상기 몸체 상단부의 처리수 배출관에 설치되는 제2 밸브(122)와;A second valve 122 installed at the treatment water discharge pipe of the upper end of the body;

상기 필터(104)를 승하강시키는 필터 승하강부(130); 및A filter elevating unit 130 for elevating the filter 104; And

상기 제1 밸브(120)와 상기 제2 밸브(122)가 닫혀진 상태에서 필터(104)를 하강시켜 원수를 여과 및 압착하는 과정과, 배출 스크류(106)를 회전시켜 슬러리를 배출하는 과정과, 상기 제1 밸브(120)가 열려진 상태에서 필터(104)를 상승시켜 원수를 흡입함과 동시에 처리수를 배출하는 과정과, 필터(104)가 최상부에 도달하기전에 제1 밸브(120)를 닫는 과정, 및 제1 밸브(120)가 닫힘을 확인하고 상기 필터(104)를 추가 상승시키는 과정을 수행하도록 제어하는 제어부(13);를 포함하여 이루어진다.A process of filtering and compressing raw water by lowering the filter 104 in a state where the first valve 120 and the second valve 122 are closed, rotating the discharge screw 106, and discharging the slurry; The process of discharging the treated water at the same time as the suction of the raw water by raising the filter 104 in the open state of the first valve 120, and closing the first valve 120 before the filter 104 reaches the top And a control unit 13 for confirming that the first valve 120 is closed and performing a process of further raising the filter 104.

도 2에는 도 1의 제어부(13)에서 이루어지는 제어 과정을 흐름도로써 나타내었다. 도 2를 참조하면, 제어부(13)는 먼저 제1 밸브(120)와 제2 밸브(122)를 클로즈(S200)하도록 하고 필터(104)를 다운시켜(S202), 여과 및 압착하고 배출 스크류(106)를 온하여(S204) 필터링된 슬러리를 배출한다.2 is a flowchart illustrating a control process performed by the controller 13 of FIG. 1. Referring to FIG. 2, the control unit 13 first closes the first valve 120 and the second valve 122 (S200) and then moves down the filter 104 (S202) to filter and compress the discharge screw ( 106 is turned on (S204) to discharge the filtered slurry.

이제, 본 발명의 중요한 동작 수순으로서 제1 밸브(120)와 제2 밸브(122)를 오픈하고 필터(104)를 업시키면서(S206) 원수를 흡입함과 동시에 처리수를 배출하되 필터(104)가 최상부에 도달하기 전에, 예컨대 전체 사이클의 약 70% 정도 상승된 싯점에서 제1 밸브(120)를 클로즈하고 필터를 계속해서 업(S208)시키는 수순으로 제1 밸브(120)와 제2 밸브(122) 및 필터 승하강부(130)를 제어한다.Now, while opening the first valve 120 and the second valve 122 and up the filter 104 as an important operation procedure of the present invention (S206) while sucking the raw water and discharge the treated water while the filter 104 First valve 120 and second valve (in order) to close the first valve 120 and continue the filter up (S208) before reaching the top, e.g., at about 70% of the total cycle. 122) and the filter elevating unit 130 is controlled.

도 3a 내지 도 3e는 본 발명에 따른 자동 세척 필터 장치의 작용 효과를 설명하기 위한 단면도를 나타내었다. 단계(S200)에서는 도 3a에 나타낸 바와 같이 제1 밸브(120)와 제2 밸브(122)가 클로즈된 상태이고, 단계(S202)에서는 도 3b에 나타낸 바와 같이 필터(104)를 다운시켜 원수를 여과하고 여과된 슬러리를 압착하며, 단계(S204)에서는 배출 스크류(106)를 온하여 필터링된 슬러리가 배출된다. 단계(S206)에서는 제1 밸브(120)와 제2 밸브(122)를 오픈하고 필터(104)를 업시키면서 원수를 흡입하고 처리수를 배출하는데 이때 필터(104)가 최상부에 도달하기 전에, 단계(S208)에서 제1 밸브(120)를 클로즈하고 필터를 계속해서 업(S208)시키는 수순으로 제1 밸브(120)와 제2 밸브(122) 및 필터 승하강부(130)를 제어한다.3A to 3E are cross-sectional views illustrating the effect of the automatic cleaning filter device according to the present invention. In step S200, as shown in FIG. 3A, the first valve 120 and the second valve 122 are closed, and in step S202, as shown in FIG. 3B, the filter 104 is turned down to remove the raw water. The filtered slurry is compressed, and the filtered slurry is turned on in step S204 by turning on the discharge screw 106. In step S206, the first valve 120 and the second valve 122 are opened and the filter 104 is turned up to suck the raw water and discharge the treated water, before the filter 104 reaches the uppermost stage. In step S208, the first valve 120, the second valve 122, and the filter raising / lowering unit 130 are controlled in the procedure of closing the first valve 120 and continuing the filter up (S208).

상기 자동 세척 필터 장치에서는 제1 밸브를 클로즈한 상태에서 필터를 계속해서 업시키는 과정에서 필터(104) 상부의 처리수가 필터(104) 하부쪽으로 흐르도록 거꾸로 압력이 가해짐에 따라 필터(104)가 처리수에 의하여 세척된다. 또한, 필터(104)로부터 떨어져 나오는 슬러리의 양이 증가됨에 따라 결국 몸체(10) 하부에는 상당히 빠르게 슬러리가 누적되지만, 몸체 하부의 배출 스크류(106)에 의하여 고농도의 슬러리가 외부로 배출되므로 필터(104)의 재오염은 줄어들게 된다.In the self-cleaning filter device, the filter 104 is applied as the reverse pressure is applied so that the treated water in the upper portion of the filter 104 flows toward the lower side of the filter 104 in the process of continuously increasing the filter while the first valve is closed. It is washed by the treated water. In addition, as the amount of slurry coming out of the filter 104 increases, the slurry accumulates fairly quickly under the body 10, but a high concentration of slurry is discharged to the outside by the discharge screw 106 under the body. Recontamination in 104 is reduced.

즉, 상기 자동 세척 필터 장치는 고농도의 슬러리 배출이 가능함은 물론, 종래의 필터들이 가지고 있는 문제인 필터의 막힘이 현저히 줄어든다는 효과가 있다. 또한, 자동차 엔진과 같이 여러 개의 필터를 조합하거나 병렬로 연결하여 연속적으로 필터링하도록 구성하여 처리량을 용이하게 증가시킬 수 있으며, 세척수를 거꾸로 흘려 세척하는 일명, 역세가 필요없이 항상 필터가 최적의 상태를 유지할 수 있다는 효과도 있다.That is, the automatic cleaning filter device can be discharged in a high concentration of slurry, as well as the effect that the clogging of the filter which is a problem with the conventional filters is significantly reduced. In addition, it is possible to increase the throughput easily by combining several filters like a car engine or by connecting them in parallel so that the throughput can be easily increased. Also, the filter always keeps the optimum state without the need for backwashing. It also has the effect of maintaining.

도 1은 본 발명에 따른 자동 세척 필터 장치의 구조를 나타낸 사시도,1 is a perspective view showing the structure of a self-cleaning filter device according to the present invention,

도 2는 도 1의 제어부(13)에서 이루어지는 제어 과정을 설명하기 위한 흐름도, 및2 is a flowchart for explaining a control process performed by the controller 13 of FIG. 1, and

도 3a 내지 도 3e는 본 발명에 따른 자동 세척 필터 장치의 작용 효과를 설명하기 위한 단면도.3A to 3E are cross-sectional views for explaining the effect of the automatic cleaning filter device according to the present invention.

Claims (1)

하측에는 처리하고자 하는 대상인 원수가 유입되는 유입관과, 상측에는 필터링된 처리수가 배출되는 처리수 배출관이 부설되며 내부에는 고형 물질을 제거하는 필터, 및 바닥측에는 필터링되어 침적되는 슬러리를 외부로 배출시키는 배출 스크류를 구비하는 몸체와, 상기 몸체 하단부의 원수 유입관에 설치되는 제1 밸브와, 상기 몸체 상단부의 처리수 배출관에 설치되는 제2 밸브와, 상기 필터를 승하강시키는 필터 승하강부, 및 상기 제1 밸브와 제2 밸브 및 필터 승하강부에 접속되는 제어부를 포함하여 이루어져 고형물질을 포함한 유체로부터 고형물질을 제거하는 필터 장치의 제어 방법에 있어서,On the lower side, an inflow pipe into which raw water to be treated is introduced, and a treated water discharge pipe to which filtered treated water is discharged are disposed on the upper side, a filter to remove solid matters inside, and a filtered and deposited slurry on the bottom side to discharge to the outside. A body having a discharge screw, a first valve installed in the raw water inlet pipe of the lower end of the body, a second valve installed in the treated water discharge pipe of the upper end of the body, a filter elevating unit for elevating the filter, and the In the control method of the filter device comprising a control unit connected to the first valve, the second valve and the filter lift and lower portion to remove the solid material from the fluid containing the solid material, 상기 제1 밸브와 상기 제2 밸브가 닫혀진 상태에서 필터를 하강시켜 원수를 여과 및 압착하는 과정과, 배출 스크류를 회전시켜 슬러리를 배출하는 과정과, 상기 제1 밸브가 열려진 상태에서 필터를 상승시켜 원수를 흡입함과 동시에 처리수를 배출하는 과정과, 필터가 최상부에 도달하기전에 제1 밸브를 닫는 과정, 및 제1 밸브가 닫힘을 확인하고 상기 필터를 추가 상승시키는 과정을 포함하는 것을 특징으로 하는 자동 세척 필터 장치 제어 방법.Filtering and compressing raw water by lowering the filter while the first valve and the second valve are closed; discharging the slurry by rotating the discharge screw; and raising the filter while the first valve is opened. And draining the treated water at the same time as sucking the raw water, closing the first valve before the filter reaches the top, and confirming that the first valve is closed, and further raising the filter. Self-cleaning filter device control method.
KR1020080086920A 2008-09-03 2008-09-03 Control method of automatic cleanning filter device KR100889960B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102671461A (en) * 2011-02-24 2012-09-19 李卓 Discharging device and method for pressure filter
KR101424854B1 (en) * 2011-03-04 2014-08-04 주식회사 엘지화학 Filtering apparatus and manufacturing apparatus for positive active material
CN111054104A (en) * 2019-12-31 2020-04-24 赵刚 Water storage filter tank
CN111792761A (en) * 2020-08-05 2020-10-20 安庆泽远化工有限公司 Intelligent control medical wastewater treatment system
KR102340341B1 (en) * 2021-08-24 2021-12-16 주식회사 에프씨인터내셔널 Strainer with non-powered cleaning function

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111940128B (en) * 2020-08-06 2022-09-02 佛山市杰创科技有限公司 Pulp grinder beneficiation system and control method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990033489U (en) * 1999-04-28 1999-08-05 박성용 Filtering apparatus
KR200273295Y1 (en) 2002-01-07 2002-05-03 주식회사유신코퍼레이션 Apparatus for automatically cleaning the filter
KR20050095938A (en) * 2004-03-29 2005-10-05 한국과학기술연구원 Dual-compressible synthetic media filter and secondary effluent reclamation system using the same
KR100682090B1 (en) 2005-08-22 2007-02-12 주식회사 포스코 Combustion air filter cleaning apparatus for annealing furnace

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3067017U (en) * 1999-08-31 2000-03-21 旭エー・ブイ産業株式会社 Filtration device
JP2007152489A (en) * 2005-12-05 2007-06-21 Fanuc Ltd Coolant supply device of machine tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990033489U (en) * 1999-04-28 1999-08-05 박성용 Filtering apparatus
KR200273295Y1 (en) 2002-01-07 2002-05-03 주식회사유신코퍼레이션 Apparatus for automatically cleaning the filter
KR20050095938A (en) * 2004-03-29 2005-10-05 한국과학기술연구원 Dual-compressible synthetic media filter and secondary effluent reclamation system using the same
KR100682090B1 (en) 2005-08-22 2007-02-12 주식회사 포스코 Combustion air filter cleaning apparatus for annealing furnace

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102671461A (en) * 2011-02-24 2012-09-19 李卓 Discharging device and method for pressure filter
KR101424854B1 (en) * 2011-03-04 2014-08-04 주식회사 엘지화학 Filtering apparatus and manufacturing apparatus for positive active material
CN111054104A (en) * 2019-12-31 2020-04-24 赵刚 Water storage filter tank
CN111792761A (en) * 2020-08-05 2020-10-20 安庆泽远化工有限公司 Intelligent control medical wastewater treatment system
KR102340341B1 (en) * 2021-08-24 2021-12-16 주식회사 에프씨인터내셔널 Strainer with non-powered cleaning function

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