KR200412134Y1 - Wet flue gas desulfurization apparatus - Google Patents

Wet flue gas desulfurization apparatus Download PDF

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KR200412134Y1
KR200412134Y1 KR2020050036451U KR20050036451U KR200412134Y1 KR 200412134 Y1 KR200412134 Y1 KR 200412134Y1 KR 2020050036451 U KR2020050036451 U KR 2020050036451U KR 20050036451 U KR20050036451 U KR 20050036451U KR 200412134 Y1 KR200412134 Y1 KR 200412134Y1
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limestone
jet pipe
flue gas
absorption tower
wet flue
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KR2020050036451U
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Korean (ko)
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김기진
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해금테크 주식회사
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    • 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
    • B01D53/14—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 by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1481—Removing sulfur dioxide or sulfur trioxide
    • 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
    • B01D53/14—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 by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B01D53/185—Liquid distributors
    • 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
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides

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

Abstract

본 고안은 습식배연탈황장치에 관한 것으로, 석회석 분출관을 통해 석회석 분말을 직접 흡수탑에 투입하도록 구성되었는바, 석회석 분출관의 출구는 개방되고, 저면에는 입구에서 출구 방향으로 직경이 점차 확장된 복수개의 분출공이 간격을 두고 천공되었으며, 양측 측면의 중앙에서 출구 방향으로 직경이 점차 확장된 복수개의 분출공이 상향으로 경사지게 천공된 구성으로서, 흡수액 순환탱크에 석회석 분말을 골고루 분포시켜서 분출토록 하고, 동시에 각 분출공을 통한 분출력이 강력한 회오리 작용을 동반하여서 석회석 분말의 용해가 원활하게 이루어지도록 하게 된다. 따라서 양호한 석회석 흡수액을 흡수탑의 분무노즐로 공급할 수가 있게 되어서 탈황효과를 향상시키고, 또한 설치비용으로 절감하는 효과를 얻게 된 것이다.The present invention relates to a wet flue gas desulfurization apparatus, which is configured to directly inject a limestone powder into a absorption tower through a limestone jet pipe, and the outlet of the limestone jet pipe is opened, and the diameter of the limestone jet pipe is gradually expanded from the inlet to the outlet. A plurality of blow holes are drilled at intervals, and a plurality of blow holes are gradually inclined upwardly in the exit direction from the center of both sides side to be inclined upward, evenly distributed limestone powder in the absorbent liquid circulation tank, and at the same time The discharge power through each blow hole is accompanied by a strong whirlwind action to facilitate the dissolution of the limestone powder. Therefore, it is possible to supply a good limestone absorbent liquid to the spray nozzle of the absorption tower, thereby improving the desulfurization effect and reducing the installation cost.

Description

습식배연탈황장치{WET FLUE GAS DESULFURIZATION APPARATUS}WET FLUE GAS DESULFURIZATION APPARATUS}

도 1은 본 고안의 계략도1 is a schematic diagram of the present invention

도 2는 본 고안의 요부인 석회석 분출관을 발췌한 단면도Figure 2 is a cross-sectional view of the limestone gushing pipe which is the main part of the present invention

도 3은 도 2의 평면도3 is a plan view of FIG.

도 4는 도 2의 저면도4 is a bottom view of FIG. 2

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

10 : 흡수탑 11 : 흡수액 순환탱크 12 : 순환펌프10: absorption tower 11: absorber circulation tank 12: circulation pump

13 : 분무관 14 : 공기 흡입관 15 : 집진기13 spray tube 14 air suction tube 15 dust collector

20 : 석회석탱크 21 : 진공펌프 22 : 석회석 분출관20: limestone tank 21: vacuum pump 22: limestone jet pipe

23 : 출구 24a, 24b ~ 24m : 분출공23: outlet 24a, 24b to 24m: blowout

30 : 원심분리기 31 : 배출펌프 40 : 배기가스 입구덕트30: centrifuge 31: exhaust pump 40: exhaust gas inlet duct

50 : 배기가스 출구덕트50: exhaust gas outlet duct

본 고안은 습식배연탈황장치에 관한 것으로, 더욱 상세하게는 배기가스 중 유황산화물을 석회석 흡수액에 반응 흡착시켜서 유황산화물인 석고로 만들어 회수 하는 탈황장치에 관한 것이다. 현재 화력발전소 등에서 화석연료의 연소에 의하여 발생하는 배기가스인 유황산화물 중에서도 특히 이산화황(SO₂)은 대기오염, 산성비 등을 일으키므로 환경보호 차원에서 그 배출량이 날로 엄격히 규제되고 있다. 이 때문에 배기가스에서 이산화황을 효율적으로 제거하는 연구 및 장치의 개발이 절실히 요구되는 중요한 과제이다. 종래에는 흡수탑에 흡수액을 공급하기 위하여 석회석 분말 제조를 위한 볼밀과 석회석 슬러리탱크를 설치하고, 여기에서 물과 석회석을 투입하여서 만들어진 석회석 흡수액을 흡수탑의 흡수액 순환탱크에 공급하도록 되었다. 따라서 볼밀 장치와 슬러리탱크를 별도로 설치하는 공정과 소요 공간 및 이에 따른 제반 설비의 비용이 추가되어서 규모가 비교적 적은 공장에서는 설치에 많은 어려움이 있었다. The present invention relates to a wet flue gas desulfurization apparatus, and more particularly, to a desulfurization apparatus for reacting and adsorbing sulfur oxides in an exhaust gas to limestone absorbent liquid to make gypsum as a sulfur oxide. Currently, sulfur dioxide (SO2), which is an exhaust gas generated by the combustion of fossil fuels in thermal power plants, generates air pollution, acid rain, etc., and therefore its emissions are strictly regulated in order to protect the environment. For this reason, research and development of a device for efficiently removing sulfur dioxide from the exhaust gas is an important task that is urgently required. In the related art, a ball mill and a limestone slurry tank for preparing limestone powder are provided to supply an absorbent liquid to an absorption tower, and the limestone absorbent liquid prepared by adding water and limestone is supplied to the absorption liquid circulation tank of the absorption tower. Therefore, the process of installing the ball mill and the slurry tank separately, the space required, and the cost of the overall equipment was added, there was a lot of difficulties in the installation in a relatively small plant.

본 고안에서는 이러한 문제점을 감안하여서 석회석 분말을 진공펌프로 직접 흡수탑에 투입하도록 구성되었는바, 석회석 분출관의 출구는 개방되고, 저면에는 입구에서 출구 방향으로 직경이 점차 확장된 복수개의 분출공이 간격을 두고 천공되었으며, 양측 측면의 중앙에서 출구 방향으로 직경이 점차 확장된 복수개의 분출공이 상향으로 경사지게 천공된 구성으로서, 흡수액 순환탱크에 석회석 분말을 골고루 분포시켜서 분출토록 하고, 동시에 각 분출공을 통한 분출력이 강력한 회오리 작용을 동반하여서 석회석 분말의 용해가 원활하게 이루어지도록 하게 된다. 따라서 양호한 석회석 흡수액을 흡수탑의 분무노즐로 공급할 수가 있게 되어서 탈황효과를 향상시키고, 또한 설치비용으로 절감하는 효과를 얻게된 습식배연탈황장치를 제공하는데 본 고안의 목적이 있다.In the present invention, in view of the above problems, the limestone powder is directly put into the absorption tower with a vacuum pump, and the outlet of the limestone jet pipe is opened, and at the bottom, a plurality of jet holes gradually expanded in diameter from the inlet to the outlet are spaced. Perforated with a plurality of ejection holes are gradually inclined upwardly in the exit direction from the center of both sides to be inclined upward, evenly distributed limestone powder in the absorbent circulation tank to eject and at the same time through each ejection hole Partial power is accompanied by a strong whirlwind action to facilitate the dissolution of limestone powder. Accordingly, it is an object of the present invention to provide a wet flue gas desulfurization apparatus which can supply a good limestone absorbent liquid to a spray nozzle of an absorption tower, thereby improving the desulfurization effect and reducing the installation cost.

본 고안의 구성 및 작용을 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Referring to the configuration and operation of the subject innovation in detail as follows.

도 1은 본 고안의 계략도로서, 흡수탑(10), 석회석탱크(20) 및 원심분리기(30)로 구성되고, 흡수탑(10)에는 흡수액 순환탱크(11), 순환펌프(12), 분무관(13), 공기 흡입관(14) 및 집진기(15)가 설치되었으며. 석회석탱크(20)에 연결되어서 진공펌프(21)로 작동되는 석회석 분출관(22)이 상기 흡수액 순환탱크(11)내에 장치되었다. 상기에서 분무관(13)은 배기가스의 배출량이나 이산화황의 농도에 따라 다단으로 적절히 배치할 수 있다. 1 is a schematic view of the present invention, the absorption tower 10, limestone tank 20 and the centrifuge 30, the absorption tower 10, the absorption liquid circulation tank 11, the circulation pump 12, Spray tube (13), air intake tube (14) and dust collector (15) were installed. A limestone jet pipe 22 connected to the limestone tank 20 and operated by the vacuum pump 21 is installed in the absorbent liquid circulation tank 11. In the above, the spray tube 13 can be appropriately arranged in multiple stages according to the amount of exhaust gas and the concentration of sulfur dioxide.

도 2는 본 고안의 요부인 석회석 분출관을 발췌한 단면도, 2 is a cross-sectional view of the limestone jet pipe which is the main part of the present invention,

도 3은 도 2의 평면도, 도 4는 도 2의 저면도로서, 석회석 분출관(22)의 출구(23)는 개방되었고, 저면부에는 입구에서 출구(23) 방향으로 직경이 점차 확장된 분출공(24a)(24b)(24c)(24d)(24e)(24f)이 간격을 두고 천공되었으며, 양측 측면의 중앙에서 출구(23) 방향으로 직경이 점차 확장된 분출공(24g)(24h)(24i)(24j)(24k)(24m)이 점차 상향으로 경사지게 천공되었다. FIG. 3 is a plan view of FIG. 2, FIG. 4 is a bottom view of FIG. 2, wherein the outlet 23 of the limestone jet pipe 22 is opened, and the jet is gradually expanded in diameter from the inlet to the outlet 23 at the bottom. Balls 24a, 24b, 24c, 24d, 24e and 24f were drilled at intervals, and the ejection holes 24g and 24h gradually expanded in diameter toward the outlet 23 from the center of both sides. (24i) (24j) (24k) (24m) were perforated gradually obliquely upward.

이와 같이된 본 고안의 작동과정을 설명하면, 석회석탱크(20)에 공급된 석회석 분말이 진공펌프(21)에 연결된 석회석 분출관(22)을 통해서 흡수탑(10)의 흡수액 순환탱크(11)로 투입된다. 이때 석회석 분출관(22)의 저면과 양 측면에 각기 분산 배열된 분출공(24a)~(24m)으로 석회석 분말이 분출되는 과정에서 강력한 회오리 작용 을 동반하여서 공기흡입관(14)으로 흡입되는 공기와 합류하여 와류현상을 일으키고, 이는 석회석의 용해가 원활하게 이루어지도록 한다. 따라서 양호한 석회석 흡수액이 되도록 도와주게 되고, 이 흡수액은 순환펌프(12)에 의해 각 분무관(13)으로 공급되어서 아래로 분무된다. 이때 배기가스 입구덕트(40)를 통해 흡수탑(10)에 유입되는 각종 연소장치의 배기가스는 분무관(13)을 통과하면서 흡수 또는 충돌 제거되고, 배기가스에 함유된 먼지는 집진기(15)에 의해 제거되어서 정화된 가스가 출구덕트(50)로 배출된다. 상기에서 석회석 흡수액은 배기가스 중의 이산화황을 선택적으로 흡수하여 아황산칼슘을 생성하고, 이 아황산칼슘이 생성된 흡수액은 흡수액 순환탱크(13)에 낙하되어서 배출펌프(31)에 의해 원심분리기(30)로 이동된 후, 석고(60)로 회수된다. 그리고 흡수탑 순환탱크(11)내의 흡수액 일부는 흡수액 순환펌프(12)에 의해 다시 분무관(13)에 보내진다.Referring to the operation of the present invention as described above, the limestone powder supplied to the limestone tank 20 is the absorption liquid circulation tank 11 of the absorption tower 10 through the limestone jet pipe 22 connected to the vacuum pump 21. Is put into. At this time, the air sucked into the air intake pipe (14) accompanied by a strong whirlwind action in the process of ejecting the limestone powder into the ejection holes (24a) to (24m) arranged on the bottom and both sides of the limestone ejection pipe 22, respectively Joining causes vortexing, which facilitates the dissolution of limestone. Therefore, it helps to make a good limestone absorbent liquid, which is supplied to each spray pipe 13 by the circulation pump 12, and sprayed down. At this time, the exhaust gas of various combustion devices introduced into the absorption tower 10 through the exhaust gas inlet duct 40 is absorbed or collided while passing through the spray tube 13, and the dust contained in the exhaust gas is collected in the dust collector 15. The gas removed and purified by the gas is discharged to the outlet duct 50. The limestone absorbent liquid selectively absorbs sulfur dioxide in the exhaust gas to produce calcium sulfite, and the absorbed liquid having the calcium sulfite is dropped into the absorbent liquid circulation tank 13 to the centrifuge 30 by the discharge pump 31. After being moved, it is recovered to gypsum 60. A part of the absorbent liquid in the absorption tower circulation tank 11 is sent to the spray pipe 13 again by the absorbent liquid circulation pump 12.

본 고안은 상기에서와 같이 습식배연탈황장치에 있어, 석회석 분출관(22)의 출구(23)가 개방되고, 저면부에는 입구에서 출구(23)쪽으로 직경이 점차 확장된 복수개의 분출공(24a)(24b)(24c)(24d)(24e)(24f)이 간격을 두고 천공되었으며, 양측 측면의 중앙에서 출구(23)쪽으로 직경이 점차 확장된 복수개의 분출공(24g)(24h)(24i)(24j)(24k)(24m)이 점차 상향으로 경사지게 천공된 구성으로서, 각기 분산 배열된 분출공(24a)~(24m)에 의해 석회석 분말의 분출량을 균일하게 분포시킬 수가 있고, 또한 강력한 회오리 작용을 동반하여서 공기흡입관(14)으로 흡입되는 공기와 합류하여 와류현상을 일으키며, 이는 석회석의 용해가 원활하게 이루 어지도록 도와 주게 된다. 따라서 양호한 석회석 흡수액을 흡수탑(10)의 분무관(13)으로 공급할 수가 있어서 탈황효과를 더욱 향상시키고, 설치비용을 절감할 수 있게 된 유용한 고안이다.The present invention, in the wet flue gas desulfurization apparatus as described above, the outlet 23 of the limestone jet pipe 22 is opened, the bottom portion has a plurality of jet holes 24a gradually expanded in diameter from the inlet to the outlet 23 24b, 24c, 24d, 24e, 24f are spaced apart and a plurality of blow holes 24g, 24h, 24i whose diameters gradually extend from the center of both sides toward the outlet 23. 24j, 24k, and 24m are perforated inclined upward gradually, and the ejection amount of the limestone powder can be uniformly distributed by the spray holes 24a to 24m each dispersed and arranged. Along with the whirlwind action and joins the air sucked into the air intake pipe (14) to cause the vortex phenomenon, which helps to facilitate the dissolution of limestone. Therefore, it is a useful design that can supply a good limestone absorbent liquid to the spray tube 13 of the absorption tower 10 to further improve the desulfurization effect and reduce the installation cost.

Claims (1)

석회석 흡수액을 흡수탑내에 분무하여서 배기가스 중에 함유되어 있는 황산화물을 제거하는 습식배연탈황장치에 있어서, 석회석탱크에 연결된 석회석 분출관이 흡수액 순환탱크에 장치되어서 진공펌프로 작동되고, 출구가 개방된 석회석 분출관의 저면부에는 입구에서 출구 방향으로 직경이 점차 확장된 복수개의 분출공이 간격을 두고 천공되었으며, 양측 측면의 중앙에서 출구 방향으로 직경이 점차 확장된 복수개의 분출공이 상향으로 경사지게 천공된 것을 특징으로 하는 습식배연탈황장치.In the wet flue gas desulfurization apparatus for spraying limestone absorbent liquid into the absorption tower to remove sulfur oxides contained in the exhaust gas, the limestone jet pipe connected to the limestone tank is installed in the absorbent circulation tank and operated by a vacuum pump, In the bottom part of the limestone ejection pipe, a plurality of ejection holes having a diameter gradually expanded from the inlet to the exit direction were drilled at intervals, and a plurality of ejection holes gradually expanding in the exit direction from the center of both sides were inclined upwardly. Wet flue gas desulfurization apparatus characterized in that.
KR2020050036451U 2005-12-27 2005-12-27 Wet flue gas desulfurization apparatus KR200412134Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117358052A (en) * 2023-10-25 2024-01-09 北京中科辉丰科技有限公司 Flue gas equipartition board

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117358052A (en) * 2023-10-25 2024-01-09 北京中科辉丰科技有限公司 Flue gas equipartition board
CN117358052B (en) * 2023-10-25 2024-04-05 北京中科辉丰科技有限公司 Flue gas equipartition board

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