KR101558130B1 - apparatus for treating nitrogen oxide gas with multi-stage gas separation tower for treating NOx gas stage by stage - Google Patents

apparatus for treating nitrogen oxide gas with multi-stage gas separation tower for treating NOx gas stage by stage Download PDF

Info

Publication number
KR101558130B1
KR101558130B1 KR1020150020068A KR20150020068A KR101558130B1 KR 101558130 B1 KR101558130 B1 KR 101558130B1 KR 1020150020068 A KR1020150020068 A KR 1020150020068A KR 20150020068 A KR20150020068 A KR 20150020068A KR 101558130 B1 KR101558130 B1 KR 101558130B1
Authority
KR
South Korea
Prior art keywords
gas
tank
neutralization
reaction
water storage
Prior art date
Application number
KR1020150020068A
Other languages
Korean (ko)
Inventor
송근용
Original Assignee
엔티베이스 주식회사
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 엔티베이스 주식회사 filed Critical 엔티베이스 주식회사
Priority to KR1020150020068A priority Critical patent/KR101558130B1/en
Application granted granted Critical
Publication of KR101558130B1 publication Critical patent/KR101558130B1/en

Links

Images

Classifications

    • 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
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • 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
    • 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

Abstract

The present invention relates to an apparatus for treating nitrogen oxide gas with a multi-stage gas separation tower for treating NOx gas stage by stage, which comprises the steps of: vertically forming a main body by forming a reaction tank on a lower end and forming a neutralization tank on an upper end; moving the gas removed with NOx to the neutralization tank after going through a multi-stage gas separation tower by connecting and forming the multi-stage gas separation tower between the reaction tank and the neutralization tank; forming a circulated water storage tank for reaction stored with a reaction solution containing Na2S on one side and forming a circulated water storage tank for neutralization stored with a neutralized solution containing NaOH on the other side; forming a separation wall for storing the reaction solution containing Na2S sprayed through a first spray nozzle layer by separating and forming the circulated water storage tank for the reaction and the circulated water storage tank for neutralization on the lower end, and by separating and dividing a gap between the reaction tank and the neutralization tank on the upper end, inside the circulated water storage tank for the reaction, and separating and storing the neutralized solution containing NaOH sprayed through a second spray nozzle layer inside the circulated water storage tank for neutralization; and comprising a path for guiding the neutralized solution containing NaOH sprayed through the second spray nozzle layer to the inside of the circulated water storage tank for the neutralization by being formed between the inner wall of the main body and the outer wall of the reaction tank.

Description

NOx 가스를 단계적으로 처리하기 위한 가스 다단 분리타워를 갖는 질소산화물 가스 처리장치{apparatus for treating nitrogen oxide gas with multi-stage gas separation tower for treating NOx gas stage by stage}[0001] The present invention relates to a nitrogen oxide gas treating apparatus having a gas multi-stage separation tower for stepwise treating NOx gas,

본 발명은 NOx 가스를 단계적으로 처리하기 위한 가스 다단 분리타워를 갖는 질소산화물 가스 처리장치에 관한 것으로, 더욱 상세하게는 하단에는 반응조를 형성하고 상단에는 중화조를 각각 형성한 후, 상기 반응조와 중화조 사이에 가스 다단 분리타워를 설치하여 하나의 본체에 주요 장치를 수직으로 배열 형성함으로써, 부지면적과 설치비용을 절감함은 물론 처리 방식에 따른 약품 투입을 완전히 분리하여 더욱 효과적으로 NOx 가스를 처리할 수 있도록 한 NOx 가스를 단계적으로 처리하기 위한 가스 다단 분리타워를 갖는 질소산화물 가스 처리장치에 관한 것이다.The present invention relates to a nitrogen oxide gas treating apparatus having a gas multi-stage separation tower for stepwise treating NOx gas, and more particularly, to a nitrogen oxide gas treating apparatus having a multi- By installing a multi-stage gas separation tower between the tanks, it is possible to reduce the site area and installation cost by completely arranging the main devices vertically in one main body, as well as completely separate the chemical injection according to the treatment method, The present invention relates to a nitrogen oxide gas treating apparatus having a gas multi-stage separation tower for stepwise treating a NOx gas to be supplied to a gas-

일반적으로 질소산화물(NOx - NO,NO2)은 질산 및 질산염 제조시설, 폭약 제조시설, 금속의 표면 처리시설, 반응시설 및 질산을 사용하는 산업체의 생산 활동에서 발생된다. Generally, nitrogen oxides (NOx - NO, NO 2 ) are generated in the production activities of nitric acid and nitrate production facilities, explosive production facilities, metal surface treatment facilities, reaction facilities and industries using nitric acid.

상기와 같이 질소산화물을 표현하는 용어중에 NOx 라는 단어가 있다. NOx란 NO, NO2 , N2O, N2O3 , N2O4, N2O5 등을 일컫는다. 그래서 NOx라 하면 먼저 가스상태의 NO와 NO2 를 일컫는 용어로 사용되고 있다. NO는 무색기체 NO2는 적갈색 기체인데 이는 대기환경 오염뿐만 아니라 우리 인체에 매우 유독한 가스상 물질이며, 흔히 산업체에서 질산을 사용하는 공정에서는 대부분이 질소산화물(NOx)을 배출한다.As described above, there is the word NOx among the terms expressing nitrogen oxides. NOx is NO, NO 2, N 2 O , N 2 O 3, N 2 O 4, N 2 O 5 . So when NOx LA has been used as a term referring to the first gaseous NO and NO 2. NO is a colorless gas NO 2 is a reddish brown gas, which is not only pollution of the air but also very toxic to the human body, and in the process of using nitric acid in industry, most of it releases nitrogen oxides (NOx).

산업체에서 질산을 배출하는 반응식의 예를 들면 다음과 같다.Examples of reaction equations for nitric acid emission from industry are as follows.

4HNO3 → 2H2O + O2 + 4NO2 ↑4HNO 3 ? 2H 2 O + O 2 + 4NO 2?

위의 반응식에서와 같이 질소산화물인 NO2 가스가 발생한다.
따라서 근래에는 상기와 같은 질소산화물을 제거하기 위하여 질소산화물(NOx) 처리방법이 안출된 바 있다. 습식으로 가스를 제거하는 SCRUBBER나 PACKED TOWER(충전탑)는 오염물질의 농도가 고농도 일 때 적용이 어려운 것으로 인식되어 왔으며, 특히 가스 흡수탑인 PACKED TOWER(충전탑)는 설계시 오염물질의 농도가 높을수록 충진층의 높이만 높아져 고도의 제거효율을 기대하기 어려운 단점이 있다.As shown in the above reaction formula, NO 2 gas, which is a nitrogen oxide, is generated.
Therefore, in recent years, a method of treating nitrogen oxides (NOx) has been proposed in order to remove the above-mentioned nitrogen oxides. SCUBBERS or PACKED TOWER, which removes gas by wet, has been recognized as difficult to apply when the concentration of pollutants is high. Particularly, PACKED TOWER (packed tower), which is a gas absorption tower, The higher the height of the filling layer, the higher the removal efficiency is.

삭제delete

또한 고온에서 촉매를 사용하여 운전하는 방식으로 보통 SCR, SNCR 등의 공법이 있는데 이는 많은 투자비와 유지비가 소모된다는 단점이 있다.In addition, there are methods such as SCR and SNCR, which are operated by using a catalyst at a high temperature, which is disadvantageous in that a large amount of investment and maintenance costs are consumed.

저온(80℃ 이하)상태의 질소산화물(NOx)을 제거하기 위해서는 높은 투자비와 유지비 외에 가스의 온도를 300℃ 에서 800℃ 범위의 높은 온도로 상승시켜서 유지해야 하므로 이에 따른 추가적인 에너지 비용을 감당하기 힘들다는 등의 단점이 있었다.In order to remove nitrogen oxides (NOx) at low temperature (80 ° C or less), it is necessary to maintain the temperature of the gas at a high temperature ranging from 300 ° C to 800 ° C in addition to high investment cost and maintenance cost, And the like.

상기와 같은 단점을 감안하여 근래에는 약품반응을 필요로 하는 유해 가스를 처리하기 위해 반응조와 중화조를 이용한 가스 처리방식이 안출된 바 있으나, 설치시 도1에서와 같이 반응조(10) 및 중화조(20)가 각기 별도로 제작되어 직렬로 설치 사용되기 때문에 많은 부지면적과 설치비용이 많이 소요되는 등의 제반 문제점이 발생되었다.In view of such disadvantages, in recent years, a gas treatment method using a reaction tank and a neutralization tank has been proposed in order to treat noxious gas requiring a chemical reaction. However, as shown in FIG. 1, when the reaction tank 10 and the neutralization tank (20) are separately manufactured and installed in series, so that a lot of area and installation cost are required.

[특허문헌 1] 등록특허 제10-0403436호(배출가스를 처리하기 위한 촉매 및 방법)[Patent Document 1] Registration No. 10-0403436 (catalyst and method for treating exhaust gas) [특허문헌 2] 등록특허 제10-0934880호(질소산화물 또는 황산화물의 처리방법 및 그 장치)[Patent Document 2] Registration No. 10-0934880 (Method for treating nitrogen oxides or sulfur oxides and apparatus thereof)

따라서 본 발명의 목적은 상기와 같은 문제점을 감안하여 안출한 것으로, 하단에는 반응조를 형성하고 상단에는 중화조를 각각 형성한 후, 상기 반응조와 중화조 사이에 가스 다단 분리타워를 설치하여 하나의 본체에 주요 장치를 수직으로 배열 형성 함으로써, 부지면적과 설치비용을 절감할 수 있도록 한 NOx 가스를 단계적으로 처리하기 위한 가스 다단 분리타워를 갖는 질소산화물 가스 처리장치를 제공하는 데 있다.SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a multi-stage gas separation tower having a reaction tank at the bottom and a neutralization tank at the top, And a gas multi-stage separation tower for stepwise processing the NOx gas so as to reduce the site area and the installation cost by vertically arranging the main apparatuses in the apparatus for treating nitrogen oxides.

본 발명의 다른 목적은 NOx 가스처리시 반응조 내부로 유입된 가스중 NOx가 제거된 가스는 가스 다단 분리타워를 거친후 중화조로 이동되게 하여 가스의 상승속도 및 압력 손실을 최소화할 수 있도록 한 NOx 가스를 단계적으로 처리하기 위한 가스 다단 분리타워를 갖는 질소산화물 가스 처리장치를 제공하는 데 있다.It is another object of the present invention to provide a NOx purifying apparatus, which is capable of minimizing a rising speed and a pressure loss of a gas by causing NOx to be removed from a gas introduced into a reaction vessel during a NOx gas treatment, And a gas multi-stage separation tower for stepwise processing the nitrogen oxide gas.

본 발명의 또 다른 목적은 NOx 가스처리시 제1분사노즐층을 통해 분사된 Na2S를 포함한 반응용액은 반응용 순환수 저장탱크내로 저장되고, 제2분사노즐층을 통해 분사된 NaOH를 포함한 중화용액은 중화용 순환수 저장탱크내로 분리 저장되게 하여 더욱 효율적으로 NOx 가스를 처리할 수 있도록 한 NOx 가스를 단계적으로 처리하기 위한 가스 다단 분리타워를 갖는 질소산화물 가스 처리장치를 제공하는 데 있다.It is another object of the present invention the reaction solution containing the Na 2 S injected through a first injection nozzle layer when NOx gas processing is stored into the storage tank circulation for the reaction, the including the injected NaOH through a second injection nozzle layer And the neutralization solution is separated and stored in the neutralization circulation water storage tank, so that the NOx gas can be treated more efficiently by stepwise processing the NOx gas.

상기와 같은 목적을 달성하기 위한 수단으로 본 발명은 NOx 성분을 함유한 가스가 유입되는 반응조와, 내부로 유입된 가스를 중성상태로 처리하여 배출시키는 중화조를 각각 준비한 후 상기 반응조와 중화조 중 반응조는 하단에 형성하고 중화조는 상단에 형성하여 본체를 수직으로 형성하는 것과;In order to achieve the above-mentioned object, the present invention provides a process for producing a NOx-containing gas, comprising the steps of: preparing a reaction tank into which a gas containing NOx is introduced, The reaction tank is formed at the lower end and the neutralization tank is formed at the upper end to form the body vertically;

상기 반응조와 중화조 사이에 가스 다단 분리타워를 연결 형성하여 반응조 내부로 유입된 가스중 NOx가 제거된 가스는 가스 다단 분리타워를 거친후 중화조로 이동되게 하는 것과; A step of forming a gas multi-stage separation tower between the reaction tank and the neutralization tank so that the NOx-removed gas from the gas introduced into the reaction tank is passed through the gas multi-stage separation tower to the neutralization tank;

상기 본체 하단 한쪽에는 Na2S를 포함한 반응용액이 저장되는 반응용 순환수 저장탱크가 형성되고 다른 한쪽에는 NaOH를 포함한 중화용액이 저장되는 중화용 순환수 저장탱크가 형성되는 것과;A neutralization circulating water storage tank in which a reaction water storage tank for storing a reaction solution containing Na 2 S is formed and a neutralization solution containing NaOH is stored is formed at the lower end of the main body;

하단은 상기 반응용 순환수 저장탱크와 중화용 순환수 저장탱크를 분리 형성하고 상단은 반응조와 중화조 사이를 분리 구획하여 제1분사노즐층을 통해 분사된 Na2S를 포함한 반응용액은 반응용 순환수 저장탱크내로 저장되고, 제2분사노즐층을 통해 분사된 NaOH를 포함한 중화용액은 중화용 순환수 저장탱크내로 분리 저장되게 분리벽을 형성하는 하는 것과;The reaction solution containing Na 2 S injected through the first injection nozzle layer is separated from the reaction tank and the neutralization tank by separating the reaction water circulation water storage tank and the neutralization water circulation water storage tank, The neutralization solution containing NaOH sprayed through the second injection nozzle layer is stored in a circulating water storage tank and is separated and stored in a neutralization circulation water storage tank;

상기 본체 내벽과 반응조 외벽 사이에 형성되어 제2분사노즐층을 통해 분사된 NaOH를 포함한 중화용액을 중화용 순환수 저장탱크 내부로 안내하는 중화용액 이동통로로 구성되는 것과;And a neutralization solution transfer passage formed between the inner wall of the main body and the outer wall of the reaction tank for guiding the neutralization solution containing NaOH injected through the second injection nozzle layer into the neutralization circulation water storage tank;

상기 다단 가스 분리타워는 중간에 절곡부가 형성되고, 상기 절곡부 상단과 하단에는 가스 이동통로가 형성되는 것을 그 기술적 구성상의 기본 특징으로 한다.The multi-stage gas separation tower is basically characterized in that a bending portion is formed at an intermediate portion and a gas transfer passage is formed at an upper end and a lower end of the bending portion.

이상에서 살펴본 바와 같이 본 발명에 따르면, 하단에는 반응조를 형성하고 상단에는 중화조를 각각 형성한 후, 상기 반응조와 중화조 사이에 가스 다단 분리타워를 설치하여 하나의 본체에 주요 장치가 수직으로 배열 형성되어 있다. 따라서 종래와 같이 가스 처리장치인 반응조와 중화조가 각각 분리 설치되는 것에 비해 본 발명은 부지면적과 설치비용을 절감할 수 있 것이다.As described above, according to the present invention, a reaction tank is formed at the lower end, a neutralization tank is formed at the upper end, a gas multi-end separation tower is provided between the reaction tank and the neutralization tank, Respectively. Therefore, the present invention can reduce the site area and the installation cost, as compared with the prior art in which the reaction tank and the neutralization tank are separated from each other as in the prior art.

또한, 본 발명은 NOx 가스처리시 반응조 내부로 유입된 가스중 NOx가 제거된 가스는 가스 다단 분리타워를 거친후 중화조로 이동되기 때문에 가스상승 및 압력이 최소화되는 것이다.In the present invention, the NOx-free gas flowing into the reaction vessel during the NOx gas treatment is moved to the neutralization tank after passing through the gas multi-stage separation tower, so that gas rising and pressure are minimized.

또한, 본 발명은 NOx 가스처리시 제1분사노즐층을 통해 분사된 Na2S를 포함한 반응용액은 반응용 순환수 저장탱크내로 저장되고, 제2분사노즐층을 통해 분사된 NaOH를 포함한 중화용액은 중화용 순환수 저장탱크내로 분리 저장되어 사용되기 때문에 더욱 효율적으로 NOx 가스를 처리할 수 있는 등의 효과가 있는 것이다.Further, the present invention is characterized in that the reaction solution containing Na 2 S injected through the first injection nozzle layer during the NOx gas treatment is stored in the circulating water storage tank for reaction, and the neutralization solution containing NaOH sprayed through the second injection nozzle layer Is used separately and stored in the neutralization circulating water storage tank, it is possible to treat NOx gas more efficiently.

도1은 종래 질소산화물 가스 처리장치의 구성도
도2는 본 발명에 따른 질소산화물 가스 처리장치의 구성도
도3은 본 발명에 따른 질소산화물 가스 처리장치의 연결 구성도1 is a block diagram of a conventional nitrogen oxide gas processing apparatus
2 is a schematic diagram of a nitrogen oxide gas treating apparatus according to the present invention
3 is a connection structure diagram of the nitrogen oxide gas treating apparatus according to the present invention

이하 본 발명의 구체적인 실시예를 첨부도면을 참조하여 보다 상세하게 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 도2와 도3에서와 같이 하나의 본체(100) 내부에 반응조(200), 가스 다단 분리타워(500), 중화조(300)를 수직으로 배열 형성하고, 처리 방식에 따른 약품 투입이 완전 독립적으로 분리 저장될 수 있도록 구성된다.2 and 3, a reaction tank 200, a gas multi-stage separation tower 500, and a neutralization tank 300 are vertically arranged in one body 100, Can be separately stored in a completely independent manner.

이를 위하여 NOx 성분을 함유한 가스가 유입되는 반응조(200)와, 내부로 유입된 가스를 중성상태로 처리하여 배출시키는 중화조(300)를 각각 준비한 후 상기 반응조(200)와 중화조(300) 중 반응조(200)는 본체(100) 내부 하단에 형성하고 중화조(300)는 상단에 형성한다. For this, a reaction tank 200 into which a gas containing a NOx component is introduced and a neutralization tank 300 through which the gas introduced therein is treated in a neutral state are prepared respectively, and then the reaction tank 200 and the neutralization tank 300, The reaction tank 200 is formed at the lower end of the main body 100 and the neutralization tank 300 is formed at the upper end.

상기 반응조(200)와 중화조(300) 사이에는 가스 다단 분리타워(500)를 연결 형성하여 반응조(200) 내부로 유입된 가스중 NOx가 제거된 가스는 가스 다단 분리타워(500)를 거친후 중화조(300)로 이동될 수 있도록 구성된다. 이때 가스의 상승속도 및 압력손실을 최소화하기 위해서 가스의 상승속도는 2m/sec~7m/sec 범위로 유지토록 하였다.A gas multistage separation tower 500 is connected between the reaction tank 200 and the neutralization tank 300 to remove NOx from the gas flowing into the reaction tank 200 through the gas multistage separation tower 500 So that it can be moved to the neutralization tank 300. At this time, in order to minimize the rise speed and the pressure loss of the gas, the rising speed of the gas was kept in the range of 2 m / sec to 7 m / sec.

상기 가스 다단 분리타워(500)는 상부에서 낙하되는 물방울들 즉, 제2분사노즐층(310)을 통해 분사된 NaOH를 포함한 중화용액이 반응조(200) 내부로 침투하지 못하도록 하기위해 상단은 막힘 구조로 형성된다. 또한 가스 다단 분리타워(500) 측벽 중간에는 내측으로 절곡되는 절곡부(510)가 형성되며, 상기 절곡부(510) 상단과 하단에는 가스를 상부로 이동시키는 가스 이동통로(520)가 형성된다.In order to prevent the neutralization solution containing NaOH sprayed through the second injection nozzle layer 310 from penetrating into the reaction vessel 200, the upper part of the gas multi-stage separation tower 500 has a clogging structure . A bent portion 510 is formed at an intermediate portion of the sidewall of the gas multi-stage separation tower 500 and a gas moving passage 520 is formed at the upper and lower ends of the bent portion 510 to move the gas upward.

한편, 본체(100) 하단 한쪽에는 Na2S를 포함한 반응용액이 저장되는 반응용 순환수 저장탱크(400)가 형성되고 다른 한쪽에는 NaOH를 포함한 중화용액이 저장되는 중화용 순환수 저장탱크(410)가 형성된다.On the other hand, a reaction-purpose circulating water storage tank 400 storing the reaction solution containing Na 2 S is formed on the bottom side of the main body 100, and a neutralization solution containing NaOH is stored in the other side of the circulation water storage tank 410 Is formed.

분리벽(700) 하단은 상기 반응용 순환수 저장탱크(400)와 중화용 순환수 저장탱크(410)를 분리 형성하고 상단은 반응조(200)와 중화조(300) 사이를 분리 구획하여 제1분사노즐층(210)을 통해 분사된 Na2S를 포함한 반응용액은 반응용 순환수 저장탱크(400)내로 저장되고, 제2분사노즐층(310)을 통해 분사된 NaOH를 포함한 중화용액은 중화용 순환수 저장탱크내(410)로 분리 저장되게 하는 역할을 수행한다.The lower end of the separation wall 700 separates the reaction circulation water storage tank 400 and the neutralization circulation water storage tank 410 and separates the reaction tank 200 and the neutralization tank 300 from each other, The reaction solution containing Na 2 S injected through the injection nozzle layer 210 is stored in the reaction circulating water storage tank 400 and the neutralization solution containing NaOH injected through the second injection nozzle layer 310 is neutralized And is stored separately in the circulating water storage tank 410 for circulating water.

중화용액 이동통로(600)는 본체(100) 내벽과 반응조(200) 외벽 사이에 형성되어 제2분사노즐층(310)을 통해 분사된 NaOH를 포함한 중화용액을 중화용 순환수 저장탱크(410) 내부로 안내하도록 구성된다.The neutralization solution transfer passage 600 is formed between the inner wall of the main body 100 and the outer wall of the reaction tank 200 and transfers the neutralized solution containing NaOH sprayed through the second injection nozzle layer 310 to the neutralization circulation water storage tank 410, As shown in FIG.

상기와 같은 목적을 달성하기 위해 반응조(200)에는 Na2S를 포함한 반응용액을 분사하는 제1노즐분사층(210)이 형성되고, 이 제1노즐분사층(210) 하단에는 제1충진물(220)이 형성된다. 중화조(300)에는 NaOH를 포함한 반응용액을 분사하는 제2노즐분사층(310)이 형성되고, 이 제2노즐분사층(310) 하단에는 제2충진물(320)이 형성된다. 또한 제2노즐분사층(310) 상단에는 가스에 포함된 물이 걸러지는 데미스터층이 형성되고, 상기 데미스터층을 통과하여 물방울이 제거된 가스만이 배출부를 통하여 다음 단계로 진행되도록 구성된다.In order to achieve the above object, a reaction chamber 200 is provided with a first nozzle injection layer 210 for injecting a reaction solution containing Na 2 S, and the first nozzle injection layer 210 is provided with a first filler 220 are formed. A second nozzle injection layer 310 for spraying a reaction solution containing NaOH is formed in the neutralization tank 300 and a second filler 320 is formed at the lower end of the second nozzle injection layer 310. In addition, a mist layer is formed on the top of the second nozzle injection layer 310 to remove water contained in the gas, and only the gas through which the droplet has been removed through the demister layer is advanced to the next stage through the discharge portion .

또한, 상기 반응조(200)에는 Na2S용액이 충진된 반응조 용액통(120)이 연결되고, 중화조(300)에는 NaOH용액이 충진된 중화조 용액통(130)이 연결 사용되며, 이러한 용액통은 각각의 반응용 순환수 저장탱크(400), 중화용 순환수 저정탱크(410) 내부에 투입된다.The reaction tank 200 is connected to a reaction tank solution tank 120 filled with a Na 2 S solution and a neutralization tank solution tank 130 filled with a NaOH solution is connected to the neutralization tank 300. The tank is introduced into each of the reaction water circulation water storage tank 400 and the neutralization water circulation water storage tank 410.

이와 같이 구성된 본 발명은 NOx가스가 반응조(200) 내부에 유입되면 반응용 순환수 저장탱크(400)에 저장된 Na2S 용액은 순환펌프에 의해서 제1분사노즐층(210)을 통하여 NOx가스에 분사되면서 NOx가스를 제거한다. 이때 제1분사노즐층(210)에 의해 분사된 반응용액 Na2S 세정수는 반응용 순환수 저장탱크(400) 내부로 저장된다.When the NOx gas flows into the reaction tank 200, the Na 2 S solution stored in the circulation water storage tank 400 for reaction is introduced into the NOx gas through the first injection nozzle layer 210 by the circulation pump The NOx gas is removed while being sprayed. At this time, the reaction solution Na 2 S rinse water injected by the first injection nozzle layer 210 is stored in the circulation water storage tank 400 for reaction.

NOx가스가 제거된 가스는 상부로 상승함과 동시에 가스 다단 분리타워(500) 내부로 이송되고, 이송된 가스는 절곡부(510)의 가스 이동통로(520)를 거친후 중화조 (300)내부로 투입된다.The gas from which the NOx gas has been removed rises to the top and is transferred into the gas multi-stage separation tower 500. The transferred gas passes through the gas transfer passage 520 of the bending portion 510, .

가스가 중화조(300) 내부에 유입되면 중화용 순환수 저장탱크(410)에 저장된 NaOH 용액은 순환펌프에 의해서 제2분사노즐층(310)을 통하여 가스에 분사되면서 가스를 중성상태로 처리한다. 이때 중성 상태의 가스는 데미스터층을 통하여 물방울이 제거된 상태에서 외부로 배출되고, 제2분사노즐층(310)에 의해 분사된 중화용액 NaOH 용액 Na2S 세정수는 중화용액 이동통로(600)를 통하여 중화용 순환수 저장탱크(410) 내부로 저장된다. When the gas is introduced into the neutralization tank 300, the NaOH solution stored in the neutralization water storage tank 410 is injected into the gas through the second injection nozzle layer 310 by the circulation pump, and the gas is neutralized . At this time, the gas in the neutral state is discharged to the outside while the water droplet is removed through the demister layer, and the neutralization solution NaOH solution Na 2 S rinse water injected by the second injection nozzle layer 310 flows through the neutralization solution transfer passage 600 And is stored in the circulating water storage tank 410 for neutralization.

따라서 분리벽(700)을 통하여 Na2S를 포함한 반응용액은 반응용 순환수 저장탱크(400)내로 저장되고, NaOH를 포함한 중화용액은 중화용 순환수 저장탱크(410)내로 각각 분리 저장 사용되기 때문에 NOx가스 처리시 더욱 효과적으로 NOx가스를 효율적으로 처리할 수 있는 것이다.Therefore, the reaction solution containing Na 2 S is stored in the circulating water storage tank 400 for reaction through the separation wall 700, and the neutralization solution containing NaOH is separately stored and stored in the neutralization circulation water storage tank 410 Therefore, the NOx gas can be efficiently treated more efficiently when the NOx gas is treated.

100 : 본체 120 ; 반응조 용액통
130 : 중화조 용액통 200 : 반응조
210 : 제1분사노즐층 220 : 제1충진물
300 : 중화조 310 : 제2분사노즐층
320 : 제2충진물 400 : 반응용 순환수 저장탱크
410 : 중화용 순환수 저장탱크 500 : 가스 다단 분리타워
510 : 절곡부 520 : 가스 이동통로
600 : 중화용액 이동통로 700 : 분리벽100: body 120; Reactor tank
130: Neutralization tank solution tank 200: Reactor
210: First Injection Nozzle Layer 220: First Injection Layer
300: neutralization tank 310: second injection nozzle layer
320: Second filling material 400: Circulating water storage tank for reaction
410: Circulating water storage tank for neutralization 500: Gas multi-stage separation tower
510: bent portion 520: gas passage
600: Neutralizing solution transfer passage 700: Separation wall

Claims (2)

NOx 성분을 함유한 가스가 유입되는 반응조와, 내부로 유입된 가스를 중성상태로 처리하여 배출시키는 중화조를 각각 준비한 후 상기 반응조와 중화조 중 반응조는 하단에 형성하고 중화조는 상단에 형성하여 본체를 수직으로 형성하는 것과;
상기 반응조와 중화조 사이에 가스 다단 분리타워를 연결 형성하여 반응조 내부로 유입된 가스중 NOx가 제거된 가스는 가스 다단 분리타워를 거친후 중화조로 이동되게 하는 것과;
상기 본체 하단 한쪽에는 Na2S를 포함한 반응용액이 저장되는 반응용 순환수 저장탱크가 형성되고 다른 한쪽에는 NaOH를 포함한 중화용액이 저장되는 중화용 순환수 저장탱크가 형성되는 것과;
하단은 상기 반응용 순환수 저장탱크와 중화용 순환수 저장탱크를 분리 형성하고 상단은 반응조와 중화조 사이를 분리 구획하여 제1분사노즐층을 통해 분사된 Na2S를 포함한 반응용액은 반응용 순환수 저장탱크내로 저장되고, 제2분사노즐층을 통해 분사된 NaOH를 포함한 중화용액은 중화용 순환수 저장탱크내로 분리 저장되게 하는 분리벽을 형성하는 것과;
상기 본체 내벽과 반응조 외벽 사이에 형성되어 제2분사노즐층을 통해 분사된 NaOH를 포함한 중화용액을 중화용 순환수 저장탱크 내부로 안내하는 중화용액 이동통로로 구성되는 것을 특징으로 하는 NOx 가스를 단계적으로 처리하기 위한 가스 다단 분리타워를 갖는 질소산화물 가스 처리장치.
A reaction tank in which a gas containing a NOx component is introduced and a neutralization tank in which a gas introduced into the reactor is treated in a neutral state to prepare a neutralization tank is prepared. The reaction tank and the neutralization tank are formed at the lower end, To form a vertical shape;
A step of forming a gas multi-stage separation tower between the reaction tank and the neutralization tank so that the NOx-removed gas from the gas introduced into the reaction tank is passed through the gas multi-stage separation tower to the neutralization tank;
A neutralization circulating water storage tank in which a reaction water storage tank for storing a reaction solution containing Na 2 S is formed and a neutralization solution containing NaOH is stored is formed at the lower end of the main body;
The reaction solution containing Na 2 S injected through the first injection nozzle layer is separated from the reaction tank and the neutralization tank by separating the reaction water circulation water storage tank and the neutralization water circulation water storage tank, Forming a separating wall that is stored in the circulating water storage tank and in which the neutralizing solution containing NaOH injected through the second injection nozzle layer is separated and stored in the neutralizing circulating water storage tank;
And a neutralization solution transfer passage formed between the inner wall of the main body and the outer wall of the reaction tank for guiding the neutralization solution containing NaOH injected through the second injection nozzle layer into the neutralization circulation water storage tank. And a gas multi-stage separation tower for treating the nitrogen oxide gas.
제1항에 있어서, 상기 가스 다단 분리타워 상단은 제2분사노즐층을 통해 하부로 분사되는 NaOH를 포함한 중화용액이 반응조 내부로 침투하지 못하도록 상단이 막힘 구조로 형성됨과 동시에 가스 다단 분리타워 측벽 중간에는 내측으로 절곡되는 절곡부가 형성되며, 상기 절곡부 상단과 하단에는 반응조를 통과한 가스를 상부로 이송시키는 가스 이동통로가 형성되는 것을 특징으로 하는 NOx 가스를 단계적으로 처리하기 위한 가스 다단 분리타워를 갖는 질소산화물 가스 처리장치.
The method of claim 1, wherein the upper end of the gas multi-stage separation tower is formed in a clogging structure so that the neutralization solution including NaOH injected downward through the second injection nozzle layer can not penetrate into the reaction vessel, And a gas transfer passage for transferring a gas having passed through the reaction tank to the upper portion is formed at an upper end and a lower end of the bent portion. The gas multistage separation tower for treating the NOx gas stepwise Wherein the nitrogen oxide gas processing apparatus further comprises:
KR1020150020068A 2015-02-10 2015-02-10 apparatus for treating nitrogen oxide gas with multi-stage gas separation tower for treating NOx gas stage by stage KR101558130B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150020068A KR101558130B1 (en) 2015-02-10 2015-02-10 apparatus for treating nitrogen oxide gas with multi-stage gas separation tower for treating NOx gas stage by stage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150020068A KR101558130B1 (en) 2015-02-10 2015-02-10 apparatus for treating nitrogen oxide gas with multi-stage gas separation tower for treating NOx gas stage by stage

Publications (1)

Publication Number Publication Date
KR101558130B1 true KR101558130B1 (en) 2015-10-06

Family

ID=54345358

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150020068A KR101558130B1 (en) 2015-02-10 2015-02-10 apparatus for treating nitrogen oxide gas with multi-stage gas separation tower for treating NOx gas stage by stage

Country Status (1)

Country Link
KR (1) KR101558130B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111992018A (en) * 2020-08-21 2020-11-27 福建华威钜全精工科技有限公司 Yellow tobacco treatment easy preparation and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111992018A (en) * 2020-08-21 2020-11-27 福建华威钜全精工科技有限公司 Yellow tobacco treatment easy preparation and preparation method thereof

Similar Documents

Publication Publication Date Title
EP3093062A1 (en) Method for efficiently removing acid gas sulfide by using desulfurization technology in ammonia method
KR101544280B1 (en) Apparatus for treating exhaust gas using bubble ozone water droplet and method for treating exhaust gas using the same
CN103801176B (en) A kind of ozone oxidation is in conjunction with the flue-gas denitration process of spraying cooling and device
CN103990365A (en) Method and system for purifying flue gas by inducing free radicals by virtue of ozone and hydrogen peroxide
RU2629077C2 (en) Method and device for the degassing of liquid sulfur
CN102872709A (en) Process of efficiently capturing aerosol in desulfurized flue gas
CN102974200A (en) Oxynitride waste gas treatment device and oxynitride waste gas treatment method
CN106975337A (en) Chlorine dioxide gaseous oxidation denitration integrated device and its technique
CN107051158A (en) A kind of hydrogen peroxide desulfurizer handled for sulfuric acid tail gas and method
KR101558130B1 (en) apparatus for treating nitrogen oxide gas with multi-stage gas separation tower for treating NOx gas stage by stage
CN108380018A (en) The absorption plant of nitrogen oxides and the method for realizing absorption product separation using the device
KR100702660B1 (en) Removal method and equipment of nitrogen oxide by wet oxidation/reduction process
CN107174931A (en) A kind of high effective flue gas processing unit using solar energy as power
CN102872693B (en) Processing method of waste nitric acid fume and device thereof
KR20080016320A (en) Method and apparatus for demisting nox from exhaust gas using reactors installed in lateral sequence
KR102504431B1 (en) Simultaneous removal apparatus for SOx and NOx
CN207886958U (en) Industrial smoke ozone oxidation, wet absorption desulphurization denitration and the device for eliminating white cigarette
CN103143253A (en) Device for removing low-concentration sulfur dioxide from phosphate concentrate and application method of device
KR20150050842A (en) Method for treating nitrogen oxides gas
CN202590600U (en) Desulfurization device for preparing ammonium bisulfite solution through ammonia process
CN205988656U (en) A kind of device processing caprolactam tail gas
CN108434948A (en) A kind of acid gas absorbs oxidizing tower and its working method
CN103285728B (en) Method and device for treating sulfur dioxide in sulfuric acid tail gas
CN202921154U (en) Nitric oxide waste gas treatment device
CN201175641Y (en) Scrubber tower

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20180801

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20190809

Year of fee payment: 5