KR19980067175U - Gypsum Oxidation Air Supply of Wet Limestone Gypsum Flue Gas Desulfurization Equipment - Google Patents
Gypsum Oxidation Air Supply of Wet Limestone Gypsum Flue Gas Desulfurization Equipment Download PDFInfo
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- KR19980067175U KR19980067175U KR2019970011704U KR19970011704U KR19980067175U KR 19980067175 U KR19980067175 U KR 19980067175U KR 2019970011704 U KR2019970011704 U KR 2019970011704U KR 19970011704 U KR19970011704 U KR 19970011704U KR 19980067175 U KR19980067175 U KR 19980067175U
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
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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
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
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- 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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Abstract
본 고안의 목적은 대형 화력발전소에서 배출되는 연소가스중에 포함되어 있는 황산화물(SOx)를 처리하기 위해 설치하는 습식 석회석 석고 배연탈황설비(WET LIMESTONE-GYPSUM FLUE GAS DESULFURIZATION)의 부산물인 석고(GYPSUM)의 산화장치에 관한 것이다.The purpose of the present invention is GYPSUM, a by-product of WET LIMESTONE-GYPSUM FLUE GAS DESULFURIZATION installed to treat sulfur oxides (SOx) contained in combustion gases emitted from large thermal power plants. It relates to an oxidation device of.
흡수탑 본체(11)의 흡수탑 반응조(10)에 산화공기 공급랜스(12)가 랜스지지부(13)에 의해 교반기(A)와 상호 조합되고 교반기 설치노즐(14)의 앞의 교반기(A)는 4대가 90°의 등간격으로 배치되어 있으며 흡수탑 중심점에 접선방향으로 배치되며 산화용 공기 공급랜스(12)는 이 교반기(A) 전방에 흡수탑 중심쪽에 설치되고 있고 교반기(A)의 일정간격을 유지함으로서 교반기(A) 작동에 의한 진동 및 충격으로부터 보호되도록 설치되며 또한 산화공기 공급랜스(12)는 교반기(A) 중심점에서 약간 벗어나도록 설치한 것과, 산화공기 배관 재질을 루프(LOOP)를 기준으로 흡수탑쪽은 스테인레스 배관(Q)으로 설치하고 산화공기 블로어쪽은 일반 탄소강 재질 배관(Y)으로 설치한 것과, 산화 공기 배관의 루프는 흡수탑의 오버플로우 수위보다 높게 위치시킨 것이다.The oxidizer air supply lance 12 is combined with the stirrer A by the lance support part 13 in the absorption tower reaction tank 10 of the absorption tower body 11, and the stirrer A in front of the stirrer installation nozzle 14. 4 units are arranged at equal intervals of 90 ° and are arranged tangentially to the center of the absorption tower, and the air supply lance 12 for oxidation is installed at the center of the absorption tower in front of the stirrer A and the constant of the stirrer A is fixed. The gap is installed to be protected from vibration and shock caused by the operation of the stirrer (A), and the oxidized air supply lance (12) is installed so as to deviate slightly from the center of the stirrer (A), and the oxidized air piping material is looped. Based on the absorption tower side is installed in the stainless steel pipe (Q) and the oxidation air blower side is installed in the normal carbon steel pipe (Y), and the loop of the oxidation air pipe is positioned above the overflow level of the absorption tower.
Description
본 고안은 대형화력발전소에서 배출되는 연소가스중 황산화물을 처리하기 위한 습식 석회석 석고 배연탈황설비의 석고 산화장치에서 흡수탑 반응조(ABSORBER REACTION TANK)에 산화용 공기 공급장치에 관한 것으로서 이론치에 근접하는 산화공기 공급비율 유지와 산화공기 및 석고의 최적 접촉효과를 실현하는데 있다.The present invention relates to an air supply device for oxidation in ABSORBER REACTION TANK in a gypsum oxidizer of a wet limestone gypsum flue gas desulfurization facility for treating sulfur oxides in combustion gas discharged from a large thermal power plant. Maintain the supply ratio of oxidized air and realize the optimum contact effect of oxidized air and gypsum
흡수탑 반응조에서의 석고 산화 과정은 연소가스에 포함된 황산화물(SOx)이 흡수반응에 의해 흡수탑 순환 슬러리로 용해되며 이것은 주입되는 반응제인 석회석 슬러리에 의해 중화되고 이 과정에서 부산물인 석고가 생성되어지는데 이 과정의 주요반응은 다음과 같다.The gypsum oxidation process in the absorption tower reactor dissolves sulfur oxides (SOx) contained in the combustion gas into the absorption tower circulation slurry by absorption reaction, which is neutralized by the limestone slurry which is injected as a reactant. The main reaction of this process is as follows.
여기에서 산화용 공기가 필요한 반응과정은 (2)로서 불완전 산화가 진행되는 경우의 물리적 특성 때문에 다음의 문제점이 발생된다.Here, the reaction process requiring the air for oxidation is (2) when incomplete oxidation proceeds. Due to the physical properties of the following problems arise.
(1) 석고순도저하(1) Gypsum Purity Reduction
(2) 불완전 석고 결정화로 탈수효율 감소(2) Dehydration efficiency decreased due to incomplete gypsum crystallization
(3) 탈활설비계통에 스케일 발생(3) Scale generation in deactivation system
따라서 위에서 언급한 문제점이 발생되지 않도록 하기 위하여 산화공기가 공급되어야 하며 이를 위하여 종래에는 다음의 방법이 적용되었다.Therefore, in order to prevent the above-mentioned problems from occurring, oxidized air must be supplied. For this purpose, the following method has been conventionally applied.
(1) EX-SITU(1) EX-SITU
이것은 흡수탑과 산화반응조가 별도로 분리된 형식으로서 흡수탑에 공급되는 산화공기가 추가되지 않아 통풍계통에는 유리한 점은 있으나, 산화 반응조에 추가설치로 필요한 공간이 많이 요구되고 배관이 복잡하여지는 단점이 있음.This is a separate type of absorption tower and oxidation tank, which does not add oxidized air to the absorption tower, which is advantageous for the ventilation system, but it requires a lot of space and additional pipes for installation in the oxidation reactor. has exist.
(2) 산기관 방식(AIR SPARGER)(2) AIR SPARGER
산화공기 랜스 끝에 여러개의 작은 노즐을 설치하여 산화공기가 흡수탑내 순환수 슬러리와 균일하게 반응토록 하는 장치이나 소구경의 노즐이 다수 설치되는 관계로 노즐에서의 압력손실이 크고 랜스 내부에서 형성될 수 있는 스케일에 의해 노즐이 쉽게 막힐 수 있는 단점이 있다.A large number of small nozzles are installed at the end of the oxidized air lance to allow the oxidized air to react uniformly with the circulating water slurry in the absorption tower. There is a disadvantage that the nozzle can be easily clogged by the scale.
(3) 산화공기 공급배관을 스테인레스 배관으로 사용하게 되어 고가의 자재사용에 범위가 넓었음(3) The use of oxidized air supply pipe was used as stainless steel pipe, so the range of use of expensive materials was wide.
본 고안은 종래의 방법이 가지고 있는 문제점을 보완하고 반응효과를 증대시키기 위한 것으로 대형탈활설비의 성능보장 요구사항중 한가지인 석고순도 보증과 관련된 중요한 사항이며, 이론 효율에 가까운 최소한의 산화공기 공급으로서도 요구되는 상업용 석고순도의 생성이 가능토록 창안되었다.The present invention is designed to supplement the problems of the conventional method and to increase the reaction effect, and is an important matter related to the guarantee of the purity of gypsum, which is one of the performance guarantee requirements of large-scale dehydration equipment, and also to supply the oxidized air with a minimum of theoretical efficiency. It was made possible to produce the required commercial gypsum purity.
본 고안은 이와 같은 목적을 최소의 운전비용으로 최대의 효과를 성취하기 위한 것으로 석고의 산화효율 증대에 목적을 두고, 스테인레스 배관 사용 구간을 최소화하며 시스템 운전 측면으로도 문제되지 않도록 배관의 자재 사용 구간을 별도로 구분 적용할 수 있도록 하는 것이다.The present invention aims to achieve the maximum effect with the minimum operation cost. The purpose of the present invention is to increase the oxidation efficiency of gypsum, minimize the use of stainless pipes, and use the material in the pipes so that it is not a problem in terms of system operation. Is to be applied separately.
산화용 공기를 공급하는 것은 석회석 석고 탈황설비의 부산물인 석고를 석고보드 등의 상업용 원료로 활용하기 위해 요구되는 95%이상의 석고 순도를 만족시키기 위한 것으로서 적절한 체류시간 유지 및 효율적 혼합 반응이 기본적으로 필요한 조건들이다.The supply of air for oxidation is to satisfy the gypsum purity of 95% or more required to use gypsum, a by-product of limestone gypsum desulfurization system, as a commercial raw material such as gypsum board. Conditions.
흡수탑 반응조에는 슬러리의 침전을 막기 위한 대형 교반기가 설치되는데 이 교반기의 교반에너지와 산화공기의 공급방법을 효과적으로 조합시킴으로서 산화용 공기가 슬러리내로 신속하게 용해 확산될 수 있도록 하고, 이론비율에 근접한 최소의 산화공기 공급량으로도 충분한 산화반응의 효과가 얻어지도록 하였다.The absorption tower reactor is equipped with a large stirrer to prevent the settling of the slurry. By effectively combining the stirring energy of the stirrer and the supply method of the oxidizing air, the air for oxidation can be rapidly dissolved and diffused into the slurry, and the minimum close to the theoretical ratio is achieved. Sufficient oxidation reaction was obtained by the amount of oxidation air supplied.
도 1은 산화공기 공급랜스의 노즐 평면도1 is a plan view of a nozzle of an oxidizing air supply lance
도 2는 산화공기 공급랜스의 상세도 및 교반기용 노즐도면Figure 2 is a detailed view of the oxidized air supply lance and a nozzle diagram for the stirrer
도 3은 산화공기 배관 루프(LOOP)와 재질 경계 구분3 is an oxidation air piping loop (LOOP) and material boundary division
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
(10) : 흡수탑 반응조(11) : 흡수탑 본체(10): absorption tower reaction tank (11): absorption tower body
(12) : 산화공기 공급랜스(13) : 랜스 지지부(12): Oxidation air supply lance (13): Lance support
(14) : 교반기 설치 노즐14: stirrer installation nozzle
도 1 및 도 2에는 흡수탑 본체(11)의 흡수탑 반응조(10)에 산화공기 공급랜스(12)가 랜스지지부(13)에 의해 교반기(A)와 상호 조합 배치된 것을 나타내고 교반기 설치노즐(14)의 앞의 교반기(A)는 4대가 90°의 등간격으로 배치되어 있으며 흡수탑 중심점에 접선방향으로 배치되어 있다.1 and 2 show that the oxidizing air supply lance 12 is arranged in combination with the stirrer A by the lance support part 13 in the absorption tower reaction tank 10 of the absorption tower main body 11. In the stirrer A in front of 14), four units are arranged at equal intervals of 90 ° and are arranged tangentially to the center of the absorption tower.
산화용 공기 공급랜스(12)는 이 교반기(A) 전방에 흡수탑 중심쪽에 설치되고 있고 교반기(A)와 일정 간격을 유지함으로서 교반기(A) 작동에 의한 진동 및 충격으로부터 보호되도록 설계되어 있다.The air supply lance 12 for oxidation is installed in the absorption tower center in front of this stirrer A, and is designed to be protected from the vibration and the impact by the operation of the stirrer A by maintaining a fixed distance from the stirrer A.
또한 산화공기 공급랜스(12)는 교반기(A) 중심점에서 약간 벗어나도록 설치하여 교반기(A)회전력에 의한 산화공기의 난류(TURBULENCE) 발생을 보다 효과적으로 얻어질 수 있도록 고려되어 있다.In addition, the oxidation air supply lance 12 is considered to be installed so as to deviate slightly from the center of the stirrer (A) so that the turbulence (TURBULENCE) generation of the oxidation air by the stirrer (A) rotational power can be obtained more effectively.
이와 같이 산화공기 공급랜스(12)가 교반기(A)와 조합되어 설치되므로서 산화공기 공급랜스(12)는 대구경 배관으로 제작이 가능하게 되었고 이로서 노즐(14)이 스케일의 축적으로 인해 막히는 현상을 없앨 수 있다.Since the oxidized air supply lance 12 is installed in combination with the stirrer A as described above, the oxidized air supply lance 12 can be manufactured by a large diameter pipe, thereby preventing the nozzle 14 from clogging due to the accumulation of scale. I can eliminate it.
왜냐하면 대구경의 산화공기 공급랜스(12)로 공기가 공급되더라도 교반기(A)의 회전력에 의해서 공급된 산화공기는 작은 공기 방울로 분산되어 반응조 슬러리 내부로 확산시킬 수 있기 때문이다.This is because even though air is supplied to the large-diameter oxidized air supply lance 12, the oxidized air supplied by the rotational force of the stirrer A can be dispersed into small air bubbles and diffused into the reactor slurry.
도 3의 배관 재질을 루프(LOOP)를 기준으로 흡수탑쪽은 스테인레스 배관(Q)으로 사용하고 산화공기 블로어쪽은 일반 탄소강 재질 배관(Y)을 사용하였으며, 산화공기 배관의 루프는 흡수탑의 오버플로우 수위보다 높게 위치시킴으로서 흡수 탑내의 슬러리가 산화공기 배관으로 역류되는 것을 방지하도록 하여 배관내에서 부식이 발생되지 않도록 하였다.The pipe material of FIG. 3 is a stainless steel pipe (Q) on the absorption tower side and a carbon steel pipe (Y) on the oxidant air blower side, and the loop of the oxidized air pipe is over the absorption tower. By placing it above the flow level, the slurry in the absorption tower is prevented from flowing back into the oxidizing air piping so that corrosion does not occur in the piping.
먼저 도 1 및 도 2를 참조하여 산화공기 공급랜스(12)와 교반기(A)의 상호관계를 설명하면, 200A 구경의 배관을 통하여 공급되는 산화공기는 교반기(A)의 회전에 의해 발생되는 운동에너지에 의해 흡수탑 중앙부로 확산되는 힘을 받게 되며, 또한 교반기(A)의 혼합 효과에 의해 보다 작은 공기 방울형태로 분산될 수 있게 되므로 슬러리와의 접촉면적이 최대가 된다.First, referring to FIG. 1 and FIG. 2, the correlation between the oxidation air supply lance 12 and the stirrer A will be described. The oxidized air supplied through the pipe having a 200 A diameter will be produced by the rotation of the stirrer A. FIG. The energy is applied to the center of the absorption tower by the energy, and can be dispersed in the form of smaller air bubbles by the mixing effect of the stirrer (A), so that the contact area with the slurry is maximized.
이러한 효과로서 슬러리 내부의 석고 산화 반응 효과를 극대화 시킬 수 있게 되는 것이다.This effect will maximize the effect of gypsum oxidation reaction inside the slurry.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970011704U KR200154870Y1 (en) | 1997-05-23 | 1997-05-23 | Oxidizing air supplier for gypsum |
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| Application Number | Priority Date | Filing Date | Title |
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| KR2019970011704U KR200154870Y1 (en) | 1997-05-23 | 1997-05-23 | Oxidizing air supplier for gypsum |
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| KR19980067175U true KR19980067175U (en) | 1998-12-05 |
| KR200154870Y1 KR200154870Y1 (en) | 1999-08-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102174A (en) * | 2019-06-11 | 2019-08-09 | 天津水泥工业设计研究院有限公司 | Stirring-type efficient oxidation air hose, stirring means and desulfurizing tower |
| CN113856432A (en) * | 2021-10-28 | 2021-12-31 | 北方联合电力有限责任公司呼和浩特金桥热电厂 | Power plant desulfurizing tower |
-
1997
- 1997-05-23 KR KR2019970011704U patent/KR200154870Y1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102174A (en) * | 2019-06-11 | 2019-08-09 | 天津水泥工业设计研究院有限公司 | Stirring-type efficient oxidation air hose, stirring means and desulfurizing tower |
| CN113856432A (en) * | 2021-10-28 | 2021-12-31 | 北方联合电力有限责任公司呼和浩特金桥热电厂 | Power plant desulfurizing tower |
| CN113856432B (en) * | 2021-10-28 | 2023-11-17 | 北方联合电力有限责任公司呼和浩特金桥热电厂 | Desulfurizing tower of power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| KR200154870Y1 (en) | 1999-08-16 |
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