KR20110001634A - A sludge drator - Google Patents

A sludge drator Download PDF

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KR20110001634A
KR20110001634A KR1020090059242A KR20090059242A KR20110001634A KR 20110001634 A KR20110001634 A KR 20110001634A KR 1020090059242 A KR1020090059242 A KR 1020090059242A KR 20090059242 A KR20090059242 A KR 20090059242A KR 20110001634 A KR20110001634 A KR 20110001634A
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South Korea
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sludge
filter
screw
moving body
case
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KR1020090059242A
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Korean (ko)
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전세정
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(주)한국워터테크놀로지
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Priority to KR1020090059242A priority Critical patent/KR20110001634A/en
Publication of KR20110001634A publication Critical patent/KR20110001634A/en

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/15—Treatment of sludge; Devices therefor by de-watering, drying or thickening by treatment with electric, magnetic or electromagnetic fields; by treatment with ultrasonic waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/23—Supported filter elements arranged for outward flow filtration
    • B01D29/25—Supported filter elements arranged for outward flow filtration open-ended the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31—Self-supporting filtering elements
    • B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering 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
    • B01D35/06—Filters making use of electricity or magnetism
    • 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
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/56—Electro-osmotic dewatering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/121—Screw constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/14—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with only one screw or worm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/26—Permeable casings or strainers
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4698—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electro-osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/02—Filtering elements having a conical form
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/20—Sludge processing

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: A sludge dehydrator is provided to improve the dehydration rate of sludge by condensing and dehydrating the sludge using a moving body, and applying an electric infiltrating dehydration mode at the same time. CONSTITUTION: A sludge dehydrator(1) includes a case(10), a moving body(20), a filter(30) and a power applying unit(40). The case includes a sludge inlet and a sludge outlet. The moving body is installed in the inside of the case, for transferring the sludge from the inlet to the outlet while condensing and dehydrating. The filter is installed inside the case to surround the moving body, for filtering the moisture dehydrated from the sludge. The power applying unit applies opposite polarities to the moving body and the filter.

Description

슬러지 탈수장치{A SLUDGE DRATOR}Sludge Dewatering Device {A SLUDGE DRATOR}

본 발명은 슬러지 탈수장치에 관한 것으로서, 보다 구체적으로는 가압 및 전기침투 탈수방식을 적용하여 탈수율을 향상시킬 수 있는 슬러지 탈수장치에 관한 것이다. The present invention relates to a sludge dewatering apparatus, and more particularly, to a sludge dewatering apparatus that can improve the dehydration rate by applying a pressurized and electro-permeated dewatering method.

일반적으로 하수처리시설 또는 폐수처리시설에서는 하수 또는 폐수의 처리 중 침전물인 슬러지(Sludge)가 발생된다. 이러한 슬러지는 수분으로부터 분리하는 탈수공정을 걸쳐 처리된다. 여기서, 상기 슬러지의 탈수공정 종류로는, 상기 슬러지를 여과포와 같은 필터로 가압하여 필터링하는 방법이 일반적이나, 이러한 여과포를 이용한 슬러지 탈수공정은 슬러지에 의해 여과포가 막힘에 따른 문제점이 발생된다. 이러한 슬러지에 의한 여과포 막힘을 위해서는 여과포 세척이 요구되며, 이 여과포에 고압의 세척수를 분사함에 따른 또 다른 오염이 야기된다. In general, sludge, which is a sediment during sewage or wastewater treatment, is generated in sewage treatment or wastewater treatment facilities. This sludge is treated through a dehydration process that separates it from moisture. Here, as a type of dewatering process of the sludge, a method of filtering by pressing the sludge with a filter such as a filter cloth is common, but the sludge dewatering process using such a filter cloth has a problem caused by clogging of the filter cloth by the sludge. In order to block the filter cloth by such sludge, it is required to wash the filter cloth, and another contamination is caused by spraying the high-pressure washing water on the filter cloth.

한편, 근래에는 여과포를 이용한 슬러지 탈수공정 이외에, 스크류와 상기 스크류를 감싸는 필터를 구비하는 케이스 내부로 상기 슬러지를 주입하여, 스크류에 의한 일방향으로 이동력에 의해 슬러지를 농축 및 탈수하는 방식도 제안되고 있다. 그런데, 상기와 같은 스크류를 이용한 슬러지 탈수공정은 상기 스크류의 일방향 이 동력에 의해서만 슬러지의 탈수가 이루어짐에 따른, 탈수율에 한계가 있다. On the other hand, in recent years, in addition to the sludge dewatering process using a filter cloth, by injecting the sludge into the case having a screw and a filter surrounding the screw, a method of concentrating and dewatering the sludge by a moving force in one direction by the screw is also proposed, have. By the way, the sludge dewatering process using the screw as described above is limited in the dehydration rate, as the sludge is dehydrated only by the power in one direction of the screw.

본 발명은 상기와 같은 문제점을 감안하여 안출된 것으로서, 간단한 구조로 탈수율을 향상시킬 수 있는 슬러지 탈수장치를 제공하는데 그 목적이 있다.The present invention has been made in view of the above problems, and an object thereof is to provide a sludge dewatering device which can improve the dehydration rate with a simple structure.

본 발명의 다른 목적은 1차 탈수에 적용되어 복수의 방식으로 함수율을 보다 낮출 수 있는 슬러지 탈수장치를 제공하는데 있다. Another object of the present invention is to provide a sludge dewatering apparatus which can be applied to primary dewatering to lower the water content in a plurality of ways.

상기 목적을 달성하기 위한 본 발명에 의한 슬러지 탈수장치는, 오폐수 처리 시스템으로부터 발생된 슬러지를 1차 탈수시키는 장치로서, 케이스, 이동체, 필터 및 전원인가부를 포함한다. The sludge dewatering apparatus according to the present invention for achieving the above object is a device for primary dewatering of sludge generated from the wastewater treatment system, and includes a case, a moving body, a filter, and a power applying unit.

상기 케이스는 상기 슬러지의 유입구 및 배출구를 구비한다. 아울러, 상기 케이스에는 상기 슬러지로부터 탈수되어 분리된 수분이 배출되는 수분의 배출라인을 구비한다. The case has an inlet and an outlet of the sludge. In addition, the case is provided with a discharge line of the water is discharged from the sludge dewatered and separated.

상기 이동체는 상기 케이스 내부에 설치되어, 상기 유입구로부터 배출구 측으로 상기 슬러지를 농축 및 탈수시키면서 이동시킨다. 본 실시예에서는 상기 이동체는 상기 유입구와 배출구의 사이에 마련되어, 상기 슬러지의 이동방향으로 나사산이 형성되어 회전되는 스크류를 포함하는 것으로 예시한다. 이러한 스크류는 상기 유입구로부터 배출구로 갈수록 나사산의 높이가 낮아지도록 원뿔 형상으로 마련됨이 좋다. The movable body is installed inside the case, and moves the sludge from the inlet to the outlet side while concentrating and dehydrating the sludge. In the present exemplary embodiment, the movable body is provided between the inlet and the outlet, and includes a screw which is formed by rotating a screw thread in the moving direction of the sludge. The screw is preferably provided in a conical shape so that the height of the thread is lowered from the inlet to the outlet.

상기 필터는 상기 이동체를 감싸도록 상기 케이스 내부에 설치되어, 상기 슬 러지로부터 탈수된 수분을 필터링한다. 상기 필터는 상기 스크류와 항시 일정 간격 유지하거나 상기 슬러지의 배출방향 측으로 점차 좁혀지도록, 상기 유입구로부터 배출구로 갈수록 지름이 작아지는 원뿔 형상을 가지는 것이 좋다. The filter is installed inside the case to surround the moving body, to filter the water dehydrated from the sludge. The filter may have a conical shape in which the diameter decreases from the inlet to the outlet so that the filter is always kept at a constant distance or gradually narrows toward the discharge direction of the sludge.

상기 전원인가부는 상기와 같은 이동체 및 필터에 각각 다른 극성을 인가함으로써, 전기침투에 의한 슬러지의 탈수를 유발한다. 이때, 상기 전원인가부는 상기 슬러지의 이동방향을 기준으로 이동체 및 필터의 후단에 전원을 인가함이 보다 바람직하다. The power applying unit applies different polarities to the movable body and the filter, respectively, to induce dewatering of the sludge by electroporation. In this case, it is more preferable that the power applying unit applies power to the rear end of the moving body and the filter based on the moving direction of the sludge.

상기와 같은 구성을 구비하는 본 발명에 의하면, 첫째, 이동체에 의한 슬러지의 농축 및 탈수 작업과 동시에 전기침투방식을 적용함으로써, 슬러지의 탈수율을 향상시킬 수 있게 된다. 특히, 본 발명에 의한 슬러지 탈수장치가 오폐수 처리시스템으로부터 배출된 슬러지의 1차 탈수장치에 적용될 수 있음에 따라, 2차 탈수장치로 제공되는 슬러지의 함수율을 보다 낮출 수 있게 된다. According to the present invention having the configuration described above, first, by applying the electro-penetration method simultaneously with the concentration and dewatering operation of the sludge by the moving body, it is possible to improve the dewatering rate of the sludge. In particular, the sludge dewatering apparatus according to the present invention can be applied to the primary dewatering device of the sludge discharged from the wastewater treatment system, it is possible to lower the water content of the sludge provided to the secondary dewatering device.

둘째, 기존의 스크류 방식에 전기침투방식을 추가할 수 있음에 따라, 구조가 간단한 슬러지 탈수장치를 제공할 수 있게 된다. Second, as the electro-infiltration method can be added to the existing screw method, it is possible to provide a sludge dewatering device with a simple structure.

셋째, 스크류와 필터 사이의 간격을 항시 동일 또는 점차 좁혀지도록 마련함에 따라, 스크류에 의한 슬러지의 가압율을 향상시켜 탈수효율 향상에 이바지할 수 있게 된다. Third, as the interval between the screw and the filter is always provided to be the same or gradually narrowed, it is possible to improve the pressure ratio of the sludge by the screw to contribute to the dehydration efficiency.

넷째, 슬러지의 이동방향을 기준으로 이동체와 필터의 후단에 반대 극성을 인가함에 따라, 이동체에 의해 가압 탈수되는 슬러지의 배출 직전 탈수율을 보다 향상시킬 수 있게 된다. Fourth, by applying the opposite polarity to the rear end of the moving body and the filter based on the moving direction of the sludge, it is possible to further improve the dewatering rate just before the discharge of the sludge pressurized and dewatered by the moving body.

이하, 본 발명의 바람직한 일 실시예를 첨부된 도면을 참고하여 설명한다. Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

도 1을 참고하면, 본 발명의 일 실시예에 의한 슬러지 탈수장치(1)는 케이스(10), 이동체(20), 필터(30) 및 전원인가부(40)를 포함한다. 참고로, 본 발명에서 설명하는 슬러지 탈수장치(1)는 오물처리시설 또는 폐수처리시설과 같은 오폐수처리시설에서 배출되는 오폐수를 1차 탈수시키는 것으로 예시한다. Referring to FIG. 1, the sludge dewatering apparatus 1 according to an embodiment of the present invention includes a case 10, a moving body 20, a filter 30, and a power applying unit 40. For reference, the sludge dewatering apparatus 1 described in the present invention is exemplified as primary dewatering of wastewater discharged from wastewater treatment facilities such as a wastewater treatment facility or a wastewater treatment facility.

상기 케이스(10)는 본 발명에 의한 슬러지 탈수장치(1)의 외면을 형성한다. 이러한 케이스(10)에는 폐수나 하수에 침전되는 침전물인 슬러지(S)가 주입 및 배출되는 유입구(11) 및 배출구(12)를 구비한다. 또한, 상기 케이스(10)의 배출구(12) 측에서는 탈수되어 배출되는 슬러지(S) 즉, 케익(Cake)의 배출 및 처리를 위한 처리부(13)가 마련된다. 이러한 처리부(13)의 기술구성은 공지의 기술로부터 이해 가능하며, 본 발명의 요지가 아니므로 자세한 도시 및 설명은 생략한다. The case 10 forms an outer surface of the sludge dewatering device 1 according to the present invention. The case 10 is provided with an inlet 11 and an outlet 12 through which the sludge S, which is a precipitate precipitated in waste water or sewage, is injected and discharged. In addition, the discharge port 12 side of the case 10 is provided with a treatment unit 13 for the discharge and treatment of the sludge (S), that is, the cake (Cake) that is dewatered and discharged. The technical configuration of such a processing unit 13 can be understood from a known technique, and since it is not the gist of the present invention, detailed illustration and description are omitted.

상기 이동체(20)는 상기 케이스(10) 내부에 설치되어, 상기 유입구(11)로부터 배출구(12) 측으로 상기 슬러지(S)를 농축 및 탈수시키면서 이동시킨다. 본 발명에서는 상기 이동체(20)가 상기 유입구(11)와 배출구(12) 사이에 마련되어, 상기 슬러지(S)의 이동방향으로 회전축(22)을 중심으로 회전되는 나사산(23)을 구비하는 스크류(21)를 포함하는 것으로 예시한다. 이러한 스크류(21)의 구성에 의해, 상기 유입구(11)를 통해 유입된 슬러지(S)는 상기 나사산(23)을 따라 배출구(12) 측으로 이동하게 된다. The movable body 20 is installed inside the case 10 and moves while concentrating and dehydrating the sludge S from the inlet 11 to the outlet 12. In the present invention, the movable body 20 is provided between the inlet 11 and the outlet 12, the screw having a screw thread 23 is rotated about the rotation axis 22 in the movement direction of the sludge (S) ( 21). By the configuration of the screw 21, the sludge S introduced through the inlet 11 is moved to the outlet 12 side along the thread 23.

한편, 상기 스크류(21)는 상기 유입구(11)로부터 배출구(12)로 갈수록 나사산(23)의 높이(h)가 낮아지도록 마련된다. 즉, 상기 스크류(21)의 전체 형상은 원뿔 형상을 가지는 것이다. On the other hand, the screw 21 is provided so that the height (h) of the screw thread 23 is lowered toward the outlet 12 from the inlet (11). That is, the overall shape of the screw 21 has a conical shape.

상기 필터(30)는 상기 이동체(20)를 감싸도록 상기 케이스(10) 내부에 설치되어, 상기 슬러지(S)로부터 탈수된 수분을 필터링하여 외부로 배출시킨다. 이러한 필터(30)는 상기 스크류(21)와 항시 일정 간격을 유지하도록 마련된다. 이를 위해, 상기 필터(30)는 상기 케이스(10)의 유입구(11)로부터 배출구(12)로 갈수록 지름(R)이 작아짐으로써, 상기 원뿔형 스크류(21)와 마찬가지로 원뿔 형상을 가진다. 참고로, 상기 필터(30)는 상기 스크류(21)의 회전축(22)을 중심으로 동축 마련된다. The filter 30 is installed inside the case 10 to surround the movable body 20, and filters the dehydrated water from the sludge S to be discharged to the outside. The filter 30 is provided to maintain a constant distance from the screw 21 at all times. To this end, the filter 30 has a conical shape like the conical screw 21 by decreasing the diameter (R) from the inlet 11 of the case 10 toward the outlet 12. For reference, the filter 30 is provided coaxially with respect to the rotating shaft 22 of the screw 21.

상기 전원인가부(40)는 상기 이동체(20) 및 필터(30)에 각각 반대 극성을 인가한다. 본 실시예에서는, 상기 전원인가부(40)가 상기 이동체(20)와 필터(30)에 각각 음극(-)과 양극(+)을 인가하는 것으로 예시한다. 또한, 상기 전원인가부(40)는 상기 이동체(20)인 스크류(21)에 의한 슬러지(S)의 이동방향을 기준으로 상기 이동체(20)와 필터(30)의 후단 측에 전원을 인가한다. 이러한 전원인가부(40)로 인해 이동체(20)와 필터(30)에 각각 음극(-)과 양극(+)이 인가될 경우, 도 2와 같이, 스크류(21)에 의해 이동되면서 가압 탈수되어 배출되기 직전에 전기영동(Electrophoresis)과 전기삼투(Electro-osmosis) 작용에 의해 상기 슬러지(S)로부터 수분이 분리된다. The power applying unit 40 applies opposite polarities to the moving body 20 and the filter 30, respectively. In this embodiment, the power applying unit 40 is exemplified by applying the negative electrode (-) and the positive electrode (+) to the moving body 20 and the filter 30, respectively. In addition, the power applying unit 40 applies power to the rear end of the movable body 20 and the filter 30 based on the moving direction of the sludge S by the screw 21 which is the movable body 20. . When the negative electrode (-) and the positive electrode (+) are respectively applied to the movable body 20 and the filter 30 due to the power applying unit 40, as shown in FIG. 2, the pressure is dehydrated while being moved by the screw 21. Immediately before being discharged, water is separated from the sludge S by the action of electrophoresis and electro-osmosis.

상기 전원인가에 의한 탈수를 보다 구체적으로 설명하면, 상기 이동체(20)와 상기 필터(30)에 양극(+)과 음극(+)이 각각 인가되면, 음극(-)성을 가지는 활성 오니 입자로 구성된 슬러지(S)가 양극(+)이 인가된 스크류(21) 측으로 이동한다. 이와 동시에, 전기침투 작용에 의해 상기 슬러지(S)로부터 분리되어 양극(+)성을 가지는 수분이 음극(-)이 인가된 필터(30) 측으로 탈수되어 배출된다. 또한, 상기 슬러지(S)에 결합된 상태의 수분은 모세관 압력에 의해 음극(-)이 인가된 필터(30) 측으로 탈수되어 외부로 배출된다. 마지막으로, 상기 슬러지(S)의 세포막이 파괴됨에 따라, 슬러지(S)로부터 분리된 수분 또한 음극(-)이 인가된 필터(30)로 이동되어 배출된다. 즉, 상기 슬러지(S)의 음극(-)성을 가지는 활성오니 입자는 상기 양극(+)인 스크류(21) 측으로 이동됨과 아울러, 수분을 음극(-)인 필터(30) 측으로 강하게 밀어내어 탈수하는 방식인 것이다. 이러한 전기인가에 의해, 상기 슬러지(S)가 스크류(21)에 의해 가압되어 일방향으로 이동되어 탈수됨과 아울러 배출되기 직전에 전원인가에 의해 탈수율이 보다 향상될 수 있어, 상기 슬러지(S)의 함수율을 낮춰 고효율 탈수가 가능해진다. Dehydration by applying the power in more detail, when the positive electrode (+) and the negative electrode (+) is applied to the moving body 20 and the filter 30, respectively, the activated sludge particles having a negative (-) properties The configured sludge S moves to the side of the screw 21 to which the anode + is applied. At the same time, the water separated from the sludge S by the electro-infiltration action and dehydrated toward the filter 30 to which the cathode (-) is applied is discharged. In addition, the water in the state coupled to the sludge (S) is dewatered toward the filter 30 to which the negative electrode (-) is applied by capillary pressure and discharged to the outside. Finally, as the cell membrane of the sludge S is broken, the water separated from the sludge S is also moved to the filter 30 to which the negative electrode (-) is applied and discharged. That is, the activated sludge particles having the negative (-) property of the sludge (S) are moved to the screw (21) side of the positive electrode (+), and strongly pushes moisture toward the filter (30) side of the negative electrode (-) to dehydrate. It is the way. By such electric application, the sludge S is pressurized by the screw 21 to be moved in one direction to be dehydrated, and the dehydration rate can be further improved by applying power immediately before being discharged. By lowering the moisture content, high efficiency dehydration is possible.

참고로, 본 실시예에서는 상기 이동체(20)인 스크류(21)와 필터(30)에 각각 양극(+)과 (-)을 인가하는 것으로 도시 및 예시하였으나, 꼭 이를 한정하는 것은 아니다. 상기 이동체(20)와 필터(30)에 도시된 예와 반대로, 전원인가부(40)에 의해 음극(-)과 양극(+)이 인가되어도 상기와 같은 고효율 탈수가 가능함은 당연하다. 뿐만 아니라, 상기 전원인가부(40)가 이동체(20) 및 필터(30)의 후단이 아닌 전체에 균일하게 각각 반대 극성을 인가할 수 있음은 당연하다. For reference, in the present embodiment is shown and illustrated to apply the positive (+) and (-) to the screw 21 and the filter 30, which is the movable body 20, respectively, but is not limited thereto. Contrary to the example shown in the movable body 20 and the filter 30, it is natural that the high efficiency dehydration is possible even if the negative electrode (-) and the positive electrode (+) are applied by the power supply unit 40. In addition, it is obvious that the power applying unit 40 may apply the opposite polarity uniformly to the whole of the moving body 20 and the filter 30 instead of the rear end.

이상과 같은 구성을 가지는 본 발명에 의한 슬러지 탈수장치(1)의 탈수동작 을 도 1 및 도 2를 참고하여 설명한다. The dewatering operation of the sludge dewatering apparatus 1 according to the present invention having the above configuration will be described with reference to FIGS. 1 and 2.

우선, 도 1과 같이, 상기 케이스(10)에 마련된 유입구(11)를 통해 슬러지(S)가 도시된 화살표 "I"방향으로 유입되면, 상기 스크류(21)와 필터(30)에 전원인가부(40)로부터 양극(+)과 음극(-)이 각각 인가된다. 그러면, 도 2의 도시와 같이, 상기 슬러지(S)가 스크류(21)의 회전에 의해 배출구(12) 측으로 가압되어 이동되어 탈수됨과 아울러, 슬러지(S)의 배출 직전에 자기장 발생에 의한 전기침투탈수 작용에 의해 이동체(20)와 필터(30)의 후단에서 슬러지(S)로부터 수분이 보다 효율적으로 탈수되어 도시된 화살표 방향(W) 즉, 필터(30) 측으로 이동되어 탈수된다. 이때, 상기 슬러지(S)를 구성하는 활성오니 입자는 자체의 음극(-)성 때문에 양극(+)이 인가되는 스크류(21) 측으로 이동된다. 아울러, 상기 슬러지(S)로부터 분리된 수분은 양극(+)성을 구비함에 따라, 음극(-)이 인가되는 필터(30) 측으로 가압 이동되어 외부로 배출된다. 상기와 같이, 수분이 분리되어 탈수된 슬러지(S) 즉, 케익은 상기 케이스(10)의 배출구(12)를 통해 도시된 화살표 "O" 방향으로 최종 배출된다. First, as shown in FIG. 1, when the sludge S flows in the direction indicated by arrow “I” through the inlet 11 provided in the case 10, a power is applied to the screw 21 and the filter 30. A positive electrode (+) and a negative electrode (-) are respectively applied from 40. Then, as shown in FIG. 2, the sludge S is pressurized and moved to the outlet 12 side by the rotation of the screw 21, and dewatered, and electroporation by magnetic field generation immediately before discharge of the sludge S is performed. Due to the dehydration action, water is more efficiently dehydrated from the sludge S at the rear ends of the movable body 20 and the filter 30 and moved to the arrow direction W, that is, the filter 30 side, and dewatered. At this time, the activated sludge particles constituting the sludge S are moved to the side of the screw 21 to which the positive electrode (+) is applied because of its negative (−) property. In addition, the water separated from the sludge (S) has a positive (+) property, the pressure is moved to the filter 30 side to which the negative electrode (-) is applied is discharged to the outside. As described above, the sludge S, that is, the cake is separated and dehydrated is finally discharged through the outlet 12 of the case 10 in the direction indicated by the arrow "O".

상술한 바와 같이, 본 발명의 바람직한 실시예를 참조하여 설명하였지만 해당 기술분야의 숙련된 당업자라면 하기의 청구범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

도 1은 본 발명에 의한 슬러지 탈수장치를 개략적으로 도시한 사시도, 그리고, 1 is a perspective view schematically showing a sludge dewatering device according to the present invention, and

도 2는 도 1의 단면도이다. 2 is a cross-sectional view of Fig.

<도면의 주요 부분에 대한 부호 설명><Description of the symbols for the main parts of the drawings>

1: 슬러지 탈수장치 10: 케이스1: sludge dehydrator 10: case

20: 이동체 21: 스크류20: moving body 21: screw

22: 회전축 23: 나사산22: axis of rotation 23: thread

30: 필터 40: 전원인가부30: filter 40: power supply

Claims (8)

슬러지의 유입구 및 배출구를 구비하는 케이스; A case having an inlet and an outlet of the sludge; 상기 케이스 내부에 설치되어, 상기 유입구로부터 배출구 측으로 상기 슬러지를 농축 및 탈수시키면서 이동시키는 이동체; A moving body installed inside the case and moving the sludge from the inlet to the outlet side while concentrating and dehydrating the sludge; 상기 이동체를 감싸도록 상기 케이스 내부에 설치되어, 상기 슬러지로부터 탈수된 수분을 필터링하는 필터; 및A filter installed inside the case to surround the moving body and filtering water dehydrated from the sludge; And 상기 이동체 및 필터에 각각에 반대 극성을 인가하는 전원인가부; A power applying unit for applying opposite polarities to the moving body and the filter, respectively; 을 포함하는 슬러지 탈수장치. Sludge dewatering device comprising a. 제1항에 있어서, The method of claim 1, 상기 이동체는 상기 유입구와 배출구의 사이에 마련되어, 상기 슬러지의 이동방향으로 나사산이 형성되어 회전되는 스크류를 포함하는 것을 특징으로 하는 슬러지 탈수장치. The movable body is provided between the inlet and the outlet, the sludge dewatering apparatus characterized in that it comprises a screw thread is formed in the direction of movement of the sludge is rotated. 제2항에 있어서,The method of claim 2, 상기 스크류는 상기 유입구로부터 배출구로 갈수록 나사산의 높이가 낮아지도록 원뿔 형상으로 마련되며, The screw is provided in a conical shape so that the height of the thread is lowered from the inlet to the outlet, 상기 필터는 상기 스크류와 항시 일정 간격 유지할 수 있도록, 상기 유입구로부터 배출구로 갈수록 지름이 작아지는 원뿔 형상을 가지는 것을 특징으로 하는 슬러지 탈수장치. The filter is sludge dewatering device characterized in that it has a conical shape that the diameter decreases toward the outlet from the inlet to maintain a constant interval with the screw at all times. 제1항 내지 제3항 중 어느 한 항에 있어서, The method according to any one of claims 1 to 3, 상기 전원인가부는 상기 슬러지의 이동방향을 기준으로 상기 이동체 및 필터의 후단에 전원을 인가하는 것을 특징으로 하는 슬러지 탈수장치. The sludge dewatering device, characterized in that for applying the power to the rear end of the moving body and the filter based on the movement direction of the sludge. 제1항 내지 제3항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 케이스는 상기 필터링된 수분의 배출라인을 구비하는 것을 특징으로 하는 슬러지 탈수장치. The case is the sludge dewatering device, characterized in that provided with the discharge line of the filtered water. 오폐수 처리 시스템으로부터 배출된 슬러지를 포함한 오폐수를 1차 탈수시키기 위한 슬러지 탈수장치에 관한 것으로서, A sludge dewatering device for primary dewatering of wastewater including sludge discharged from wastewater treatment system, 상기 슬러지를 일방향으로 이동시키는 스크류; A screw for moving the sludge in one direction; 상기 스크류를 감싸 지지하도록 마련되어, 상기 슬러지로부터 탈수된 수분을 필터링하여 배출시키는 필터; 및A filter provided to surround the screw and filtering and draining the water dehydrated from the sludge; And 상기 이동체 및 필터에 각각에 반대 극성을 인가하는 전원인가부; A power applying unit for applying opposite polarities to the moving body and the filter, respectively; 를 포함하는 슬러지 탈수장치. Sludge dewatering device comprising a. 제6항에 있어서, The method of claim 6, 상기 스크류와 필터 사이의 이격 간격은 항시 동일하거나, 상기 슬러지의 배 출방향 측으로 점차 좁혀지는 것을 특징으로 하는 슬러지 탈수장치. Sludge dewatering apparatus, characterized in that the separation distance between the screw and the filter is always the same or gradually narrowed toward the discharge direction of the sludge. 제6항 또는 제7항에 있어서, The method according to claim 6 or 7, 상기 전원인가부는 상기 슬러지의 이동방향을 기준으로 상기 이동체 및 필터의 후단에 전원을 인가하는 것을 특징으로 하는 슬러지 탈수장치. The sludge dewatering device, characterized in that for applying the power to the rear end of the moving body and the filter based on the movement direction of the sludge.
KR1020090059242A 2009-06-30 2009-06-30 A sludge drator KR20110001634A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101120669B1 (en) * 2011-01-20 2012-03-16 장기완 Sludge dehydration apparatus
WO2013072081A1 (en) * 2011-11-18 2013-05-23 Voith Patent Gmbh Screw press ii
KR101335818B1 (en) * 2012-07-11 2013-12-03 주식회사 마이크로웨이브테크놀로지 Sludge drying apparatus
KR101349793B1 (en) * 2013-01-28 2014-01-10 한국생산기술연구원 Squeeze machine for sewage sludge
KR101450084B1 (en) * 2013-12-19 2014-10-15 (주)명치기계공업 Dehydration Apparatus of Sludge
CN111977756A (en) * 2020-08-20 2020-11-24 广东自远环保股份有限公司 Electroosmosis dehydration equipment for printed circuit board wastewater treatment system
CN111977755A (en) * 2020-08-20 2020-11-24 广东自远环保股份有限公司 Electroosmosis dehydration method for printed circuit board wastewater treatment system
KR20220025422A (en) * 2020-08-24 2022-03-03 (주)한국워터테크놀로지 Apparatus for dehydration of positive electrode active material using electro-osmosis method, and dewatering facility including the apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101120669B1 (en) * 2011-01-20 2012-03-16 장기완 Sludge dehydration apparatus
WO2013072081A1 (en) * 2011-11-18 2013-05-23 Voith Patent Gmbh Screw press ii
CN103958173A (en) * 2011-11-18 2014-07-30 沃依特专利有限责任公司 Screw press II
KR101335818B1 (en) * 2012-07-11 2013-12-03 주식회사 마이크로웨이브테크놀로지 Sludge drying apparatus
KR101349793B1 (en) * 2013-01-28 2014-01-10 한국생산기술연구원 Squeeze machine for sewage sludge
KR101450084B1 (en) * 2013-12-19 2014-10-15 (주)명치기계공업 Dehydration Apparatus of Sludge
CN111977756A (en) * 2020-08-20 2020-11-24 广东自远环保股份有限公司 Electroosmosis dehydration equipment for printed circuit board wastewater treatment system
CN111977755A (en) * 2020-08-20 2020-11-24 广东自远环保股份有限公司 Electroosmosis dehydration method for printed circuit board wastewater treatment system
KR20220025422A (en) * 2020-08-24 2022-03-03 (주)한국워터테크놀로지 Apparatus for dehydration of positive electrode active material using electro-osmosis method, and dewatering facility including the apparatus

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