WO2023090485A1 - Appareil de purification de gaz d'échappement - Google Patents

Appareil de purification de gaz d'échappement Download PDF

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Publication number
WO2023090485A1
WO2023090485A1 PCT/KR2021/016997 KR2021016997W WO2023090485A1 WO 2023090485 A1 WO2023090485 A1 WO 2023090485A1 KR 2021016997 W KR2021016997 W KR 2021016997W WO 2023090485 A1 WO2023090485 A1 WO 2023090485A1
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WO
WIPO (PCT)
Prior art keywords
exhaust gas
disposed
blade
sensor
washing water
Prior art date
Application number
PCT/KR2021/016997
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English (en)
Korean (ko)
Inventor
조성수
이강우
Original Assignee
(주)선진환경
고등기술연구원연구조합
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)선진환경, 고등기술연구원연구조합 filed Critical (주)선진환경
Publication of WO2023090485A1 publication Critical patent/WO2023090485A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/12—Washers with plural different washing sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/14—Packed scrubbers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/30—Controlling by gas-analysis apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/38—Removing components of undefined structure
    • B01D53/40—Acidic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact

Definitions

  • the present invention relates to an exhaust gas purifying device capable of efficiently separating fine particles and acid gas contained in exhaust gas, accompanied by a filler and a rotation method.
  • Types of air pollution prevention facilities used in industrial sites include physical and chemical adsorption pads, electrostatic precipitators, scrubbers, and the like.
  • scrubbers are used in many places such as industrial plating workplaces, powder coating workplaces, restaurants, and semiconductor workplaces.
  • Scrubbers are classified into dry, wet, and mixed types according to the inlet gas treatment method.
  • the wet scrubber is a method of dissolving and removing various harmful substances included in the harmful gas by sufficiently contacting the harmful gas with water, and has the advantage of low maintenance cost. Since the acid gas included in the harmful gas is closely related to the solubility of water, the harmful substance can be dissolved by adjusting the gas-liquid ratio, contact time, and concentration.
  • wet scrubbers can additionally use an absorbent or cleaning liquid to more efficiently remove contaminants. Since the absorption liquid removes contaminants through chemical reactions such as neutralization on the surface where the contaminants and the liquid come into contact, various cleaning liquids including water are widely used in the field.
  • the performance of the wet scrubber may be determined by how efficiently contact between harmful gas and water including the absorbent is possible.
  • An object of the present invention is to provide an exhaust gas purifying device capable of efficiently separating fine particles and acid gas contained in exhaust gas.
  • Another object of the present invention is to provide an exhaust gas purifying device capable of efficiently separating oil contained in exhaust gas.
  • Another object of the present invention is to provide an exhaust gas purifying device capable of simultaneously separating fine particles, acid gas, and oil contained in exhaust gas.
  • Another object of the present invention is to provide an exhaust gas purifying device capable of reducing power costs by controlling the differential pressure inside the main body.
  • An exhaust gas purifying device includes a pillar-shaped main body with a shaft disposed in the center and an open top; an inlet disposed on a side surface of the main body to supply exhaust gas into the main body; a first blade disposed above the inlet and disposed in a vertical direction with respect to the longitudinal direction of the shaft, and a second blade disposed below and spaced apart from the first blade; a first filler disposed on the first blade and a second filler disposed on the second blade; a first nozzle unit disposed above each of the first and second fillers to supply washing water; a storage tank disposed outside the main body and below the inlet; and a drive motor disposed below the shaft to rotate the first blade and the second blade connected to the shaft.
  • the inlet may include a plurality of filters spaced apart from each other along an outer circumferential surface, and the filter may include a second nozzle part disposed above and a third filler disposed below the second nozzle part.
  • the third filler may include a metal material in the form of a wire.
  • Each of the first blade and the first filler, the second blade and the second filler is located inside a basket disposed on the outer circumferential surface of the shaft, and the basket may include a hole smaller than the size of the first filler and the second filler.
  • a water supply sensor disposed under the second sensor and an on/off valve connected to a pipe of the first nozzle unit may be included to supply constant water into the main body through detection of the water supply sensor.
  • the first nozzle unit may include circular pipes having different sizes.
  • the reservoir may include a holder located inside the body, a washing water sensor disposed on a side of the reservoir, and a second pump supplying the washing water to the inside of the body.
  • the storage tank may include an oil content sensor disposed on a side surface and a third pump configured to discharge oil contained in the exhaust gas to the outside of the storage tank.
  • a differential pressure sensor disposed on the side of the main body may be further included.
  • the exhaust gas purifying device has an effect of efficiently separating oil, fine particles, and acid gas included in exhaust gas, and simultaneously separating them.
  • FIG. 1 is a cross-sectional view of an exhaust gas purification device according to the present invention.
  • FIG. 2 is a plan view of a first nozzle unit and a blade of the exhaust gas purifying device according to the present invention.
  • FIG. 3 is a front view of an inlet according to the present invention.
  • FIG. 4 is a plan view of an inlet according to the present invention.
  • the arrangement of an arbitrary element on the "upper (or lower)" or “upper (or lower)” of a component means that an arbitrary element is placed in contact with the upper (or lower) surface of the component.
  • ком ⁇ онент when a component is described as “connected”, “coupled” or “connected” to another component, the components may be directly connected or connected to each other, but other components may be “interposed” between each component. ", or each component may be “connected”, “coupled” or “connected” through other components.
  • Exhaust gas applied to the purification device of the present invention may include gas containing some oil (rain steam), fine particles, and acid gas.
  • Exhaust gas may include gas emitted from industrial sites such as power plants, incinerators, and steel mills, and from restaurants.
  • the exhaust gas purifying device of the present invention can firstly remove fine particles and acid gas by bringing the exhaust gas into maximum contact with washing water using a filler and a cyclone rotation method. In addition, by using washing water, it is possible to efficiently separate the oil from the exhaust gas due to the difference in specific gravity from the oil.
  • FIG. 1 is a cross-sectional view of an exhaust gas purification device according to the present invention.
  • the exhaust gas purifying device of the present invention includes a columnar body 10, an inlet 20 that is a passage through which exhaust gas enters, and a control system rotating in a horizontal direction with the bottom surface of the body 10 inside the body 10.
  • the first blade 30 and the second blade 40, the first filler 50 and the second filler 60 for purifying the exhaust gas, and supplying the washing water downward to bring the washing water into contact with the exhaust gas.
  • It may include a first nozzle unit 70, a storage tank 80 for storing and separating oil and washing water, and a driving motor 90.
  • Exhaust gas may be introduced into the purification device through the inlet 20 and may be discharged to the outside of the purification device as the purification gas flow 20 while rising from the bottom surface to the top like the exhaust gas flow 1 .
  • Exhaust gas passes through the blade in the process of going up.
  • the exhaust gas comes into contact with the filling material located on the blade, and purification can be achieved by coming into contact with the washing water scattered like the washing water stream (3).
  • the main body 10 is a space in which a purification process is performed, and may have a columnar shape with an open top in a height direction. The reason why the upper part is opened is to discharge the gas purified inside the purification device to the outside.
  • a shaft 12 serving as a support is disposed in the center.
  • the shaft may be rotated by a driving motor 90 to be described later.
  • An inlet 20 is required to supply exhaust gas into the purification device.
  • the inlet 20 may be disposed on the side of the main body 10 to supply exhaust gas into the main body 10 .
  • the exhaust gas In order to purify the exhaust gas, it may be installed at a position lower than the position of the second blade 40 among the sides of the main body.
  • FIG. 3 is a front view of an inlet according to the present invention.
  • the inlet 20 may include a plurality of filters 22 spaced apart along the outer circumferential surface. By including the filter 22 at the inlet, the exhaust gas can be pretreated.
  • the filter 22 may be continuously arranged along the circumference of the inlet 20, and it is preferable that the path through which the exhaust gas flows coincides with the longitudinal direction of the filter.
  • the first filter may be disposed in the longitudinal direction at the starting point of the inlet, and the second filter may be disposed in the longitudinal direction on the side or rear of the first filter.
  • a third filter may be disposed on the side or rear of the second filter in the longitudinal direction.
  • the exhaust gas passing through the first filter may pass through the second filter, and the exhaust gas passing through the second filter may flow into the purification device after passing through the third filter.
  • the exhaust gas can be purified in advance, the removal efficiency of fine particles, acid gas, oil, and the like of the exhaust gas is further improved.
  • the filter 22 may include a second nozzle unit 24 disposed at an upper portion and a third filler material 26 disposed at a lower portion of the second nozzle unit.
  • the second nozzle unit 24 is for supplying washing water to the inside of the filter, and may be installed to spray toward the bottom of the filter. Washing water may be supplied to the second nozzle unit 24 through the washing water pipe 27 .
  • the third filler may include a metal material in the form of a wire.
  • the metal material may be corrosion-resistant SUS316 or the like, and may be in the form of a scrubber bundled in a wire form.
  • Exhaust gas passes through this type of filter and along the exhaust gas stream 28 .
  • the moving speed of the exhaust gas is lowered while contacting the third filler.
  • particles of the exhaust gas can be washed by the washing water (water) sprayed from the second nozzle unit 24, and acid gases such as SO x and NO x can be partially dissolved.
  • the exhaust gas can be supplied into the purification device together with the washing water.
  • exhaust gas may flow into the inlet 20 in a whirlwind direction.
  • Exhaust gas flows in the direction of the arrows in FIGS. 3 and 4 , and an exhaust gas bending angle 21 may be formed. Exhaust gas may be introduced into the body while rotating at a bending angle 21 of about 200 to 360°, 240 to 330°, and 270 to 330° from the point where it enters the inlet to the point where it enters the inside of the body.
  • the bending angle is preferably about 270° or more because a length for which a plurality of filters 22 must be installed is required.
  • a plurality of filters 22 may be spaced apart from each other in a spiral direction in the inlet 20 .
  • Blades 30 and 40 and fillers 50 and 60 are required to purify the exhaust gas supplied into the purification device.
  • a basket may be installed on the outside of the blades.
  • each of the first blade 30 and the first filler 50, the second blade and the second filler is located inside the basket disposed on the outer circumferential surface of the shaft, and the filler may be contained in the space between the blades.
  • the basket may include holes (not shown) smaller than the sizes of the first filler and the second filler. Even if the blades 30 and 40 rotate, the fillers 50 and 60 do not fall out toward the bottom of the basket only when a relatively small hole is included in the basket.
  • contact of the exhaust gas rising from the lower part with the fillers 50 and 60 can be further increased only when the basket includes a hole.
  • the first blade 30 and the second blade 40 are disposed above the inlet and may be disposed in a vertical direction with respect to the longitudinal direction of the shaft 12 .
  • first blade 30 and the second blade 40 may be disposed parallel to the bottom surface of the purification device and rotated. And with respect to the first blade 30, the second blade 40 may be spaced apart from the lower portion.
  • the blades 30 and 40 preferably have at least two or three blades centered on the shaft 12 .
  • the blades 30 and 40 can be rotated by a drive motor 90 to be described later, and since they are connected to the shaft 12, they can be rotated simultaneously in the same direction as the shaft 12.
  • the blade may have a shape such as a wing or a rod, but is not limited thereto.
  • Fillers 50 and 60 accommodated around the blades 30 and 40 are as follows.
  • a first filler 50 may be disposed, and a second filler 60 may be disposed inside and around the second blade 40.
  • the first filler 50 and the second filler 60 used inside the purification device may be polymer materials that can be utilized for a long period of time.
  • the material of the first filler and the second filler may include PP, PE, ABS, and the like.
  • the size of the first filler and the second filler may be approximately 4 to 5 cm.
  • the shape may be a hollow shape, a shape in which a plurality of holes are formed in a circular shape, and a shape in which a plurality of holes are formed in a square shape.
  • the size of the hole may be 1 to 1.5 cm, the distance between one hole and another adjacent hole is about 1 times the size of the hole, and the holes may be arranged at uniform intervals.
  • the first nozzle unit 70 may be disposed above each of the first filler 50 and the second filler 60 .
  • the upper part refers to a place higher than the position of the first filler 50 and the first blade 30 and a position higher than the position of the second filler 60 and the second blade 40.
  • a plurality of first nozzle units 70 are spaced apart from each other, and the washing water can be sprayed uniformly toward the filling material accommodated in the lower direction.
  • the first nozzle unit 70 may be supplied with washing water through the pipe 74 .
  • FIG. 2 is a plan view of a first nozzle unit and a blade of the exhaust gas purifying device according to the present invention.
  • the first nozzle unit 70 may include circular pipes 72 having different sizes.
  • the pipe 72 is a passage for supplying washing water, and may include at least two or more circular pipes 72 having different sizes.
  • At least two coupling pipes connecting the circular pipes to each other may be disposed.
  • a plurality of nozzles may be disposed in the circular pipe 72 .
  • the washing water supplied from the first nozzle unit 70 may fall to the floor along the washing water flow 3 and be supplied by the first pump 16 .
  • the circulation of the washing water is in contact with the gas-liquid (gas and liquid) in the pipe 74, the first filler 50, and the second filler 60 through the first pump 16 to absorb fine particles and , That is, it may be made of a path stored in the storage tank 14.
  • the washing water falls toward the lower part of the purification device.
  • the washing water storage amount can be controlled by the washing water sensor 84.
  • Sensors, pumps and valves may be included to control the circulation and supply of washing water.
  • a first sensor 14 may be disposed on the side of the main body 10 to detect the washing water level.
  • the location of the first sensor 14 may be located between the inlet 20 and the holder 82 .
  • the first pump 16 When the first sensor 14 detects the level of the washing water, the first pump 16 operates so that the washing water stored at the bottom of the purifier can be supplied to the first nozzle part 70 along the pipe 74 .
  • a second sensor 15 may be disposed below the first sensor 14 .
  • the second sensor 15 is a sensor for detecting the washing water level at the bottom.
  • the second sensor 15 does not detect the washing water, and at this time, the first pump 16 may stop.
  • the first pump 16 may supply washing water to the pipe 74 of the first nozzle unit 70 through detection of the first sensor 14 and the second sensor 15 .
  • the purification treatment may be performed by replenishing constant water to the first nozzle unit 70 .
  • the water supply sensor 17 may be disposed below the second sensor 15 .
  • the water supply sensor 17 is a sensor located closest to the bottom surface of the main body 10, and may be installed adjacent to the second sensor 15.
  • the opening/closing valve 18 may be connected to the pipe of the first nozzle unit 70.
  • a second pump 86 which will be described later, is operated so that the washing water inside the storage tank 80 can be injected into the main body.
  • the first pump 16 is operated by the second sensor 15 and the water supply sensor 17 so that the cleaning water stored in the main body can be supplied to the first nozzle unit 70 along the pipe 74 .
  • an on/off valve 18 is required at a position close to the pipe 74.
  • the opening/closing valve 18 is opened to supply constant water, and constant water can be supplied to the position of the first sensor 14.
  • the on/off valve 18 may be closed.
  • a storage tank 80 which is a space for storing washing water and oil, may be disposed outside the main body and below the inlet.
  • the reservoir 80 includes a holder 82 located inside the main body.
  • the holder 82 may be connected to the storage tank 80 located outside the main body.
  • a washing water sensor 84 may be disposed on the side of the reservoir.
  • the washing water sensor 84 is for detecting the level of washing water in the reservoir.
  • the storage tank 80 may include a second pump 86 for supplying washing water into the main body.
  • the washing water sensor 84 detects the washing water in the storage tank 80, the second pump 86 is operated.
  • the washing water sensor 84 does not detect the washing water and the second pump 86 stops.
  • the reservoir 80 may include an oil sensor 87 and a third pump 88.
  • An oil sensor 87 may be disposed on the side of the reservoir and above the washing water sensor 84 .
  • a third pump 88 for discharging oil contained in the exhaust gas to the outside of the storage tank may be disposed on the side of the storage tank and adjacent to the oil content sensor 87 .
  • the flow rate of the washing water may be very low.
  • oil is present inside the storage tank 80. Due to this, due to the nature of the oil, the specific gravity is lower than that of water, so that the water and oil are separated, and the oil is located on top of the water.
  • the third pump 88 operates to discharge the oil content at the top of the storage tank 80 to the outside.
  • a drive motor 90 may be disposed below the shaft to rotate the first blade 30 and the second blade 40 connected to the shaft 12 .
  • the surfaces of the fillers 50 and 60 are contaminated due to fine particles, and the differential pressure increases, resulting in an increase in power cost and a decrease in the removal rate of fine particles and oil in the exhaust gas.
  • the purification device of the present invention measures the differential pressure between the separation space between the first blade 30 and the second blade 40 and the lower space of the second blade 40, the main body 10 ) may further include a differential pressure sensor 92 disposed on the side.
  • the differential pressure is 400 mmH 2 O or more to 1000 mmH 2 O or less, 400 mmH 2 O
  • the shaft 12 and the first and second blades 30 and 40 may be simultaneously rotated by the drive motor 90 while the differential pressure sensor 92 operates.
  • the operation process of the exhaust gas purification device of the present invention is as follows.
  • the washing water is sprayed to the first nozzle part 70 through the first pump 16 and the pipe 74, and the washing water is scattered along the washing water flow 3 inside the main body 10.
  • constant water may be supplied to the first nozzle unit 70 by the constant water supply sensor 17 and the opening/closing valve 18.
  • the washing water in the storage tank 80 may be supplied to the inside of the main body 10 through the washing water sensor 84 and the second pump 86.
  • the oil content above the washing water in the storage tank 80 may be discharged to the outside of the storage tank 80 through the oil sensor 87 and the third pump 88.
  • the drive motor 90 When the differential pressure exceeds 400 mmH 2 O , the drive motor 90 is moved by the differential pressure sensor 92 and the shaft 12 and the blades 30 and 40 may rotate simultaneously.
  • each of the first filler 50 and the second filler 60 is dispersed and mixed, foreign substances and washing water are introduced into the storage tank 80, and the differential pressure is reduced.
  • the exhaust gas purifying device of the present invention has an effect of effectively separating and recovering oil contained in exhaust gas.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Particles Using Liquids (AREA)

Abstract

Est divulgué un appareil de purification de gaz d'échappement qui peut utiliser des charges et un procédé de rotation pour séparer efficacement des particules fines et des gaz acides qui sont contenus dans un gaz d'échappement. L'appareil de purification de gaz d'échappement selon la présente invention peut comprendre : un corps principal en forme de pilier qui est ouvert sur le dessus et comporte un arbre dans le centre ; une entrée disposée sur la surface latérale du corps principal afin d'amener le gaz d'échappement dans le corps principal ; une première lame située au-dessus de l'entrée et disposée dans une direction perpendiculaire à la direction longitudinale de l'arbre ; une seconde lame située au-dessus de l'entrée et disposée au-dessous et espacée de la première lame ; des premières charges disposées sur la première lame ; des secondes charges disposées sur la seconde lame ; des premières buses agencées au-dessus de chacune des premières charges et des secondes charges afin de fournir de l'eau de nettoyage ; un réservoir de stockage disposé à l'extérieur du corps principal et au-dessous de l'entrée ; et un moteur d'entraînement disposé au-dessous de l'arbre afin de faire tourner les première et seconde lames reliées à l'arbre.
PCT/KR2021/016997 2021-11-17 2021-11-18 Appareil de purification de gaz d'échappement WO2023090485A1 (fr)

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Application Number Priority Date Filing Date Title
KR1020210158517A KR102411689B1 (ko) 2021-11-17 2021-11-17 배기가스 정화 장치
KR10-2021-0158517 2021-11-17

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WO2023090485A1 true WO2023090485A1 (fr) 2023-05-25

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110032985A (ko) * 2009-09-22 2011-03-30 이인섭 습식정화장치
KR20130003120A (ko) * 2011-06-30 2013-01-09 강물결 충진부재 자정수단을 구비한 세정장치
KR101688622B1 (ko) * 2016-03-11 2016-12-21 (주)명성씨.엠.아이 메쉬망으로 이루어진 필터를 구비한 스크러버
KR102011083B1 (ko) * 2019-05-20 2019-08-14 (주)이화에코시스템 충진제 교반 기능을 갖는 약액식 탈취 탑
KR102260106B1 (ko) * 2020-12-04 2021-06-03 주식회사 정원이앤씨 습식 스크러버

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102048303B1 (ko) * 2018-03-12 2019-11-25 다운환경(주) 배출가스 정화를 위한 습식 정화장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110032985A (ko) * 2009-09-22 2011-03-30 이인섭 습식정화장치
KR20130003120A (ko) * 2011-06-30 2013-01-09 강물결 충진부재 자정수단을 구비한 세정장치
KR101688622B1 (ko) * 2016-03-11 2016-12-21 (주)명성씨.엠.아이 메쉬망으로 이루어진 필터를 구비한 스크러버
KR102011083B1 (ko) * 2019-05-20 2019-08-14 (주)이화에코시스템 충진제 교반 기능을 갖는 약액식 탈취 탑
KR102260106B1 (ko) * 2020-12-04 2021-06-03 주식회사 정원이앤씨 습식 스크러버

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