KR102238253B1 - High Efficiency Energy Saving NOx and VOC Removal System - Google Patents

High Efficiency Energy Saving NOx and VOC Removal System Download PDF

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KR102238253B1
KR102238253B1 KR1020210015782A KR20210015782A KR102238253B1 KR 102238253 B1 KR102238253 B1 KR 102238253B1 KR 1020210015782 A KR1020210015782 A KR 1020210015782A KR 20210015782 A KR20210015782 A KR 20210015782A KR 102238253 B1 KR102238253 B1 KR 102238253B1
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exhaust gas
reducing agent
heat storage
nox
supply unit
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홍정희
이강수
송우일
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케이씨코트렐 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • 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
    • B01D53/005—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 heat treatment
    • 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
    • B01D53/343—Heat recovery
    • 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
    • B01D53/346—Controlling the process
    • 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
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D2257/00—Components to be removed
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    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
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    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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Abstract

The present invention relates to a high-efficiency energy-saving NOx and VOC removal facility that can be used as a denitrification facility for removing nitrogen oxide contained in the flue gas of various facilities or can be used to simultaneously remove a volatile organic compound (VOC) together with nitrogen oxide. The high-efficiency energy-saving NOx and VOC removal facility according to the present invention for solving the above problems comprises: a flue gas supply unit; a reducing agent injection device; a heat storage oxidation device; a burner; and a control unit. The heat storage oxidation device comprises: a reaction tower housing in which a combustion chamber of a predetermined size is formed on an inner upper portion; a valve member installed at an inner lower portion of the reaction tower housing; a heat storage material having a predetermined thickness installed at an upper portion of the valve member and spaced apart from the combustion chamber by a predetermined distance; and an SCR catalyst unit positioned between the valve member and the heat storage material and allowing nitrogen oxide (NOx) contained in the flue gas supplied through the flue gas supply unit to react with the reducing agent to be reduced into nitrogen (N_2) and water vapor (H_2O).

Description

고효율 에너지 절감형 NOx 및 VOC 제거설비{High Efficiency Energy Saving NOx and VOC Removal System}High Efficiency Energy Saving NOx and VOC Removal System}

본 발명은 고효율 에너지 절감형 NOx 및 VOC 제거설비에 관한 것으로, 더욱 상세하게는 전자, 도료, 도장, 식품, 비료 및 석유화학 제품 관련 설비에서 발생하는 배가스에 포함되는 질소산화물(NOx)과 휘발성유기화합물(VOC) 등의 오염물질을 축열식 산화장치(Regenerative Thermal Oxidizer, RTO)의 원리를 이용하여 제거하는 고효율 에너지 절감형 NOx 및 VOC 제거설비에 관한 것이다.The present invention relates to a high-efficiency energy-saving NOx and VOC removal facility, and more particularly, nitrogen oxides (NOx) and volatile organics contained in exhaust gases generated from facilities related to electronics, paints, painting, food, fertilizer and petrochemical products. It relates to a high-efficiency energy-saving NOx and VOC removal facility that removes pollutants such as compounds (VOC) using the principle of a regenerative thermal oxidizer (RTO).

축열식 산화장치(Regenerative Thermal Oxidizer, RTO)는 가스내의 휘발성유기화합물(VOC)을 700~800℃의 고온으로 가열하여 이산화탄소(CO2)와 수증기(H2O)로 산화 분해하여 가스내의 오염물질을 제거하는 장치로서, 1-CAN 타입, 실린더 타입, 윙 타입 및 디스크 타입 등과 같이 동작 구조에 따라 다양하게 구분되게 된다.Regenerative Thermal Oxidizer (RTO) heats volatile organic compounds (VOC) in gas to a high temperature of 700~800℃ to oxidize and decompose into carbon dioxide (CO 2 ) and water vapor (H 2 O) to remove pollutants in the gas. As a device to be removed, it is classified in various ways according to the operation structure such as 1-CAN type, cylinder type, wing type, and disk type.

최근에는 상기와 같은 축열식 산화장치에 선택적 촉매환원기술(이하 'SCR'이라 한다)이 접목되어 탈질 설비에 운용되도록 하는 기술이 개발되고 있는데, 이러한 목적의 종래 기술로는 공개특허공보 제2014-0080046호의 순환 작동형 밸브 구동 배가스 분배 방식의 축열식 선택적 촉매 환원 장치에 의한 질소산화물 저감 설비(이하 '특허문헌'이라 한다)가 개시되어 있다.Recently, a technology has been developed in which a selective catalytic reduction technology (hereinafter referred to as'SCR') is grafted to the above regenerative oxidation device to be operated in a denitrification facility. As a conventional technology for this purpose, Korean Patent Publication No. 2014-0080046 A nitrogen oxide reduction facility (hereinafter referred to as'patent document') using a regenerative selective catalytic reduction device of a circulation operated valve-driven exhaust gas distribution method of the article is disclosed.

상기 특허문헌에 개시된 축열식 선택적 촉매 환원 장치는, 순환 작동형 급배기용 밸브 및 퍼지밸브가 각각 홀수 개만큼 구비된 급배기 분배실을 구비하고, 축열재와 탈질촉매가 저장된 반응축열조를 밸브의 숫자만큼 구획하여, 배기가스를 구획된 반응축열조를 통해 공급함과 동시에 연소 후 청정가스를 다른 구획의 반응축열조를 통해 배기하며, 탈질촉매의 상부와 하부에 환원제를 공급할 수 있도록 급배기용 밸브와 같은 수의 제1환원제 공급밸브와 제2환원제 공급밸브를 포함하는 것으로 이루어진다.The regenerative selective catalytic reduction device disclosed in the above patent document includes a supply/exhaust distribution chamber provided with an odd number of circulation-operated supply/exhaust valves and purge valves, respectively, and a reaction heat storage tank in which a heat storage material and a denitration catalyst are stored. The same number as the supply/exhaust valve to supply the exhaust gas through the divided reaction storage tank and to exhaust the clean gas through the reaction storage tank in the other compartment after combustion, and to supply the reducing agent to the upper and lower portions of the denitration catalyst. It consists of including a first reducing agent supply valve and a second reducing agent supply valve.

그러나 상기 특허문헌에 개시된 축열식 선택적 촉매 환원 장치는 연소실 내부에 환원제가 공급되는 제1, 2 환원제 공급층이 설치되고, 축열재층 위에 탈질촉매층이 위치되며, 250~450℃의 연소실 내부에서 질소산화물이 환원제를 통해 환원되어 질소(N2)와 수증기(H2O)로 환원되도록 하여 종래의 탈질 설비에 비해 배가스의 온도를 촉매반응 온도까지 상승시키기 위해 투입되는 열에너지(연료)가 절약되도록 한 것이나, 이 경우 축열식 산화장치의 본연의 목적인 휘발성유기화합물(VOC)을 제거하는 용도로 사용하기에는 구조적으로 적합하지 못한 문제가 있다.However, in the thermal storage type selective catalytic reduction device disclosed in the above patent document, the first and second reducing agent supply layers to which the reducing agent is supplied are installed in the combustion chamber, the denitration catalyst layer is located on the heat storage material layer, and nitrogen oxides are formed in the combustion chamber at 250 to 450°C It is reduced through a reducing agent and reduced to nitrogen (N 2 ) and water vapor (H 2 O) to save heat energy (fuel) input to raise the temperature of the exhaust gas to the catalytic reaction temperature compared to conventional denitrification equipment. In this case, there is a problem that it is not structurally suitable to be used for the purpose of removing volatile organic compounds (VOC), which is the original purpose of the heat storage oxidizer.

즉, 휘발성유기화합물(VOC)을 제거하기 위해서는 연소실의 내부 온도가 800~900℃의 온도로 유지될 필요가 있는데, 구조적으로 탈질촉매층이 연소실과 직접 마주하고 있어 탈질촉매층이 고온으로 인해 변형되거나 또는 촉매 기능을 유지하지 못하게 되고, 또한 환원제가 노즐을 통해 분사되는 동안 배가스와 충분히 혼합되지 못한 채 고온의 연소실로 그대로 유입되기 때문에 촉매 작용에 의한 환원효율이 떨어지게 되는 문제가 있다.That is, in order to remove volatile organic compounds (VOC), the internal temperature of the combustion chamber needs to be maintained at a temperature of 800 to 900℃. There is a problem in that the reduction efficiency due to the catalytic action is deteriorated because the catalytic function cannot be maintained, and the reducing agent is not sufficiently mixed with the exhaust gas while being injected through the nozzle and flows into the high-temperature combustion chamber as it is.

따라서 각종 설비의 배가스에 포함되는 질소산화물을 제거하기 위한 탈질설비로 사용되거나 또는 질소산화물과 함께 휘발성유기화합물(VOC)을 동시에 제거하는 데에 사용될 수 있도록 구조가 개선된 NOx 및 VOC 제거설비의 개발이 요구된다.Therefore, development of a NOx and VOC removal facility with an improved structure so that it can be used as a denitrification facility to remove nitrogen oxides contained in the exhaust gas of various facilities or to simultaneously remove volatile organic compounds (VOC) together with nitrogen oxides. Is required.

KR 10-2014-0080046 A (2014. 06. 30.)KR 10-2014-0080046 A (2014. 06. 30.) KR 10-1785486 B1 (2017. 09. 29.)KR 10-1785486 B1 (2017. 09. 29.) KR 10-1425634 B1 (2014. 07. 25.)KR 10-1425634 B1 (2014. 07. 25.) KR 10-1061765 B1 (2011. 08. 29.)KR 10-1061765 B1 (2011. 08. 29.) KR 10-0983080 B1 (2010. 09. 13.)KR 10-0983080 B1 (2010. 09. 13.) KR 10-0918880 B1 (2009. 09. 17.)KR 10-0918880 B1 (2009. 09. 17.)

본 발명은 상기와 같은 종래의 NOx 및 VOC 제거설비가 가지는 문제점을 해결하기 위해 안출된 것으로, 본 발명이 해결하고자 하는 과제는 각종 설비의 배가스에 포함되는 질소산화물을 제거하기 위한 탈질설비로 사용되거나 또는 질소산화물과 함께 휘발성유기화합물(VOC)을 동시에 제거하는 데에 사용될 수 있는 고효율 에너지 절감형 NOx 및 VOC 제거설비를 제공하는 것이다.The present invention was conceived to solve the problems of the conventional NOx and VOC removal equipment as described above, and the problem to be solved by the present invention is to be used as a denitrification facility for removing nitrogen oxides contained in exhaust gas of various facilities or Or it is to provide a high-efficiency energy-saving NOx and VOC removal facility that can be used to simultaneously remove volatile organic compounds (VOC) together with nitrogen oxides.

상기의 과제를 해결하기 위한 본 발명에 따른 고효율 에너지 절감형 NOx 및 VOC 제거설비는, 배가스가 내부로 공급되는 배가스공급부; 상기 배가스공급부의 일측에 연결되면서 상기 배가스공급부의 내부로 소정량의 환원제를 투입하는 환원제투입장치; 하부 일측이 상기 배가스공급부와 연결되어 내부로 배가스가 공급되고, 상부를 경유하여 하부 타측으로 배가스가 배출되도록 구성되며, 상부에서 배가스 중에 포함되는 휘발성유기화합물(VOC)이 소정 온도로 가열되어 산화 분해되도록 하는 축열산화장치: 상기 축열산화장치의 상부 일측에 연결되면서 상기 축열산화장치의 내부로 소정 온도로 가열된 열풍을 공급하는 버너; 및 상기 환원제투입장치, 축열산화장치 및 버너의 동작을 제어하는 제어부를 포함하고, 상기 축열산화장치는, 내측 상부에 소정 크기의 연소실이 형성되는 반응탑하우징; 상기 반응탑하우징의 내측 하부에 설치되는 밸브부재; 상기 밸브부재의 상부에 상기 연소실과 소정 간격 이격되어 설치되는 소정 두께의 축열재; 및 상기 밸브부재와 상기 축열재 사이에 위치되면서 상기 배가스공급부를 통해 공급되는 배가스 중에 포함된 질소산화물(NOx)을 환원제와 반응시켜 질소(N2)와 수증기(H2O)로 환원시키는 SCR촉매부를 포함하는 것을 특징으로 한다.A high-efficiency energy-saving NOx and VOC removal facility according to the present invention for solving the above problems includes: an exhaust gas supply unit through which exhaust gas is supplied to the inside; A reducing agent injection device connected to one side of the exhaust gas supply unit and injecting a predetermined amount of reducing agent into the exhaust gas supply unit; One lower side is connected to the exhaust gas supply unit to supply exhaust gas to the inside, and exhaust gas is discharged to the other lower side through the upper side, and the volatile organic compound (VOC) contained in the exhaust gas from the top is heated to a predetermined temperature to decompose oxidation. A heat storage oxidizing device to be configured: a burner connected to an upper side of the heat storage oxidizing device and supplying hot air heated to a predetermined temperature into the heat storage oxidizing device; And a control unit for controlling the operation of the reducing agent injection device, the heat storage oxidizer, and the burner, wherein the heat storage oxidizer includes: a reaction tower housing in which a combustion chamber having a predetermined size is formed at an upper inner side; A valve member installed below the reaction tower housing; A heat storage material having a predetermined thickness installed on the upper part of the valve member and spaced apart from the combustion chamber by a predetermined distance; And an SCR catalyst positioned between the valve member and the heat storage material and reacting nitrogen oxide (NOx) contained in the exhaust gas supplied through the exhaust gas supply unit with a reducing agent to reduce it to nitrogen (N 2 ) and water vapor (H 2 O). It characterized in that it contains wealth.

그리고 본 발명은 상기 제어부가 상기 배가스공급부를 통해 상기 축열산화장치로 공급되는 배가스 중에 포함된 오염물질이 질소산화물(NOx)인 경우, 상기 버너의 동작을 제어하여 상기 축열산화장치의 상기 연소실 온도가 300~400℃가 되도록 유지시키는 것을 또 다른 특징으로 한다.In addition, in the present invention, when the pollutant contained in the exhaust gas supplied to the heat storage oxidizer through the exhaust gas supply unit is nitrogen oxide (NOx), the control unit controls the operation of the burner to reduce the temperature of the combustion chamber of the heat storage oxidizer. Another feature is that it is maintained to be between 300 and 400°C.

또한, 본 발명은 상기 제어부가 상기 배가스공급부를 통해 상기 축열산화장치로 공급되는 배가스 중에 포함된 오염물질이 질소산화물(NOx)과 휘발성유기화합물(VOC)인 경우, 상기 버너의 동작을 제어하여 상기 축열산화장치의 상기 연소실 온도가 800~900℃가 되도록 유지시키는 것을 또 다른 특징으로 한다.In addition, in the present invention, the control unit controls the operation of the burner when pollutants included in the exhaust gas supplied to the heat storage oxidizer through the exhaust gas supply unit are nitrogen oxides (NOx) and volatile organic compounds (VOC). Another feature is that the temperature of the combustion chamber of the heat storage oxidizer is maintained at 800 to 900°C.

이에 더해 본 발명은 상기 축열재가 세라믹 재질로 이루어지는 것을 또 다른 특징으로 한다.In addition to this, the present invention is another feature in that the heat storage material is made of a ceramic material.

그리고 본 발명은 상기 배가스공급부가 내부에 소정 크기의 공간이 형성되는 사각 박스 또는 원통 형상의 본체; 및 상기 본체의 내부에 복수 열로 설치되는 분사관을 포함하고, 상기 본체의 양측면에는, 소정 지름의 유입관과 배출관이 설치되는 것을 또 다른 특징으로 한다.In addition, the present invention includes a square box or a cylindrical body in which a space having a predetermined size is formed in the exhaust gas supply unit; And injection pipes installed in a plurality of rows inside the main body, and inlet pipes and discharge pipes having a predetermined diameter are installed on both side surfaces of the main body.

또한, 본 발명은 상기 환원제투입장치가 소정량의 환원제가 저장되는 환원제 저장탱크; 상기 환원제 저장탱크에 저장된 환원제를 공급하는 환원제 주입펌프; 상기 환원제 주입펌프를 통해 공급되는 환원제를 가열하여 기화시키는 환원제 기화기; 및 상기 축열산화장치 쪽의 고온 열에너지를 상기 환원제 기화기 쪽으로 공급하는 블로워를 포함하는 것을 또 다른 특징으로 한다.In addition, the present invention is a reducing agent storage tank in which the reducing agent injection device stores a predetermined amount of reducing agent; A reducing agent injection pump for supplying a reducing agent stored in the reducing agent storage tank; A reducing agent vaporizer for vaporizing by heating the reducing agent supplied through the reducing agent injection pump; And a blower for supplying high-temperature heat energy from the heat storage oxidizer side to the reducing agent vaporizer.

본 발명에 따르면, 각종 설비의 하류측(후단)에 설치되어 배가스공급부를 통해 축열산화장치 내부로 공급되는 배가스 중에 포함된 오염물질에 따라 버너의 온도가 조절되어 운전되고, 이를 통해 필요에 따라 질소산화물(NOx) 또는 질소산화물(NOx)과 휘발성유기화합물(VOC)을 동시에 제거하게 되며, 그 결과 배가스에 포함된 오염물질을 제거하기 위한 설비가 간소화되는 장점이 있다.According to the present invention, the temperature of the burner is controlled and operated according to the pollutants contained in the exhaust gas that is installed on the downstream side (rear end) of various facilities and supplied to the inside of the heat storage oxidizer through the exhaust gas supply unit. Oxide (NOx) or nitrogen oxide (NOx) and volatile organic compounds (VOC) are simultaneously removed, and as a result, there is an advantage that the facility for removing pollutants contained in exhaust gas is simplified.

또한, 질소산화물의 촉매 반응이 축열산화장치 내부에서 이루어지기 때문에 질소산화물을 환원시키기 위해 촉매 반응 온도까지 상승된 열에너지의 손실을 줄일 수 있고, 그 결과 열에너지의 이용 효율이 향상되어 에너지가 절약되는 장점이 있다.In addition, since the catalytic reaction of nitrogen oxides takes place inside the thermal storage oxidizer, it is possible to reduce the loss of heat energy raised to the catalytic reaction temperature in order to reduce nitrogen oxides, and as a result, the efficiency of use of heat energy is improved and energy is saved. There is this.

그리고 환원제투입장치가 축열산화장치의 외부에 위치되어 배가스에 환원제가 혼합된 상태로 SCR촉매부를 통과하게 되므로 배가스와 환원제의 혼합 효율이 향상되고, 이에 의해 촉매 반응의 성능이 향상되는 장점이 있으며, 환원제를 기화시키는 열원은 축열산화장치의 고온 가스를 기화에너지로 사용하여 별도의 추가 에너지 없이 운전할 수 있으므로 에너지 절감효과가 큰 장점이 있다.And since the reducing agent injection device is located outside the heat storage oxidation device and passes through the SCR catalyst in a state where the reducing agent is mixed with the exhaust gas, the mixing efficiency of the exhaust gas and the reducing agent is improved, thereby improving the performance of the catalytic reaction. The heat source for vaporizing the reducing agent has a great advantage of energy saving because it can be operated without additional energy by using the high temperature gas of the heat storage oxidizer as vaporization energy.

도 1 및 도 2는 본 발명에 따른 고효율 에너지 절감형 NOx 및 VOC 제거설비의 예를 보인 구성도.1 and 2 are configuration diagrams showing an example of a high-efficiency energy-saving NOx and VOC removal facility according to the present invention.

이하에서는 본 발명의 바람직한 실시예를 도시한 첨부도면에 따라 상세하게 설명한다.Hereinafter, according to the accompanying drawings showing a preferred embodiment of the present invention will be described in detail.

본 발명은 각종 설비의 배가스에 포함되는 질소산화물을 제거하기 위한 탈질설비로 사용되거나 또는 질소산화물과 함께 휘발성유기화합물(VOC)을 동시에 제거하는 데에 사용될 수 있는 고효율 에너지 절감형 NOx 및 VOC 제거설비를 제공하고자 하는 것으로, 이러한 본 발명은 도 1 및 도 2에 도시된 바와 같이 배가스공급부(10), 환원제투입장치(20), 축열산화장치(30), 버너(40) 및 제어부(50)를 포함한다.The present invention is a high-efficiency energy-saving NOx and VOC removal facility that can be used as a denitrification facility to remove nitrogen oxides contained in exhaust gas of various facilities or to simultaneously remove volatile organic compounds (VOC) together with nitrogen oxides As shown in Figs. 1 and 2, the present invention provides an exhaust gas supply unit 10, a reducing agent injection device 20, a heat storage oxidizer 30, a burner 40, and a control unit 50. Includes.

배가스공급부(10)는 각종 설비 등의 후단에 연결되어 배출되는 배가스가 내부로 유입되도록 하고, 후술되는 환원제투입장치(20)를 통해 투입되는 환원제가 배가스와 혼합되도록 하는 구성이다.The exhaust gas supply unit 10 is connected to the rear end of various facilities so that the exhaust gas is introduced into the interior, and the reducing agent introduced through the reducing agent injection device 20 to be described later is mixed with the exhaust gas.

이러한 배가스공급부(10)는 도 1에 도시된 바와 같이 내부에 소정 크기의 공간이 형성되는 사각 박스 또는 원통 형상의 본체(11)와, 상기 본체(11)의 내부에 복수 열로 설치되는 분사관(12)을 포함한다.As shown in FIG. 1, the exhaust gas supply unit 10 includes a square box or a cylindrical body 11 having a space having a predetermined size therein, and an injection pipe installed in a plurality of rows inside the body 11 ( 12).

그리고 본체(11)의 양측면에는 소정 지름의 유입관(11A)과 배출관(11B)이 설치되고, 상기 유입관(11A)은 각종 설비의 후단에 연결되며, 상기 배출관(11B)은 후술되는 축열산화장치(30)의 입구(31A)에 연결된다.In addition, inlet pipes 11A and discharge pipes 11B having a predetermined diameter are installed on both sides of the main body 11, and the inlet pipes 11A are connected to the rear ends of various facilities, and the discharge pipes 11B are thermally oxidized to be described later. It is connected to the inlet 31A of the device 30.

또한, 분사관(12)은 길이를 따라 소정 간격을 두고 분사노즐(도시하지 않음)이 설치되고, 이를 통해 본체(11) 내부로 유입된 배가스 상에 미립자로 분사되어 쉽게 혼합되도록 구성된다.In addition, the injection pipe 12 is configured such that injection nozzles (not shown) are installed at predetermined intervals along the length, through which fine particles are injected onto the exhaust gas introduced into the main body 11 to be easily mixed.

이에 더해 본체(11)의 바닥 쪽에는 분사된 환원제를 수집하는 수집부(도시하지 않음)가 구비되고, 이러한 수집부를 통해 수집된 환원제는 후술되는 환원제투입장치(20) 쪽으로 공급되어 재사용되도록 구성된다.In addition, a collection unit (not shown) for collecting the injected reducing agent is provided at the bottom of the main body 11, and the reducing agent collected through this collection unit is supplied to the reducing agent injection device 20, which will be described later, and is configured to be reused. .

환원제투입장치(20)는 배가스공급부(10)의 일측에 연결되어 배가스공급부(10)의 본체(11) 내부로 환원제를 투입하는 구성이다.The reducing agent injection device 20 is connected to one side of the exhaust gas supply unit 10 to inject the reducing agent into the main body 11 of the exhaust gas supply unit 10.

이러한 환원제투입장치(20)는 질소산화물(NOx)을 환원시키기 위한 암모니아 등의 환원제가 수용되고, 배가스공급부(10)의 유입관(11A)을 통해 본체(11) 내부로 유입되는 배가스의 유량에 따라서 투입량이 자동으로 조절되어 정량 공급되도록 구성된다.The reducing agent injection device 20 accommodates a reducing agent such as ammonia for reducing nitrogen oxides (NOx), and the flow rate of the exhaust gas flowing into the main body 11 through the inlet pipe 11A of the exhaust gas supply unit 10 Therefore, the input amount is automatically adjusted and configured to be supplied quantitatively.

상기와 같은 환원제투입장치(20)의 예로는 도 2에 도시된 바와 같이 소정량의 환원제가 저장되는 환원제 저장탱크(21)와, 상기 환원제 저장탱크(21)에 저장된 환원제를 공급하는 환원제 주입펌프(22)와, 상기 환원제 주입펌프를 통해 공급되는 환원제를 가열하여 기화시키는 환원제 기화기(23) 및 상기 축열산화장치(30) 쪽의 고온 열에너지를 상기 환원제 기화기(23) 쪽으로 공급하는 블로워(24)를 포함한다.Examples of the reducing agent injection device 20 as described above include a reducing agent storage tank 21 in which a predetermined amount of reducing agent is stored, as shown in FIG. 2, and a reducing agent injection pump supplying the reducing agent stored in the reducing agent storage tank 21. (22) and a reducing agent vaporizer 23 that heats and vaporizes the reducing agent supplied through the reducing agent injection pump, and a blower 24 that supplies high-temperature thermal energy from the heat storage oxidizer 30 to the reducing agent vaporizer 23. Includes.

상기와 같은 구성을 통해 환원제 저장탱크(21)에서 환원제 주입펌프(22)를 통해 환원제 기화기(23) 쪽으로 소정량의 환원제가 공급됨과 동시에 블로워(24)를 통해 축열산화장치(30)의 SCR촉매부(34) 쪽의 고온 열에너지가 환원제 기화기(23) 쪽으로 공급되게 되면서 환원제 기화기(23)에 별도의 열에너지를 따로 공급하지 않더라도 축열산화장치(30)의 열에너지를 사용하여 환원제가 충분히 기화될 수 있고, 이렇게 기화된 환원제가 배가스공급부(10) 쪽으로 공급되게 되면서 환원제를 기화시키기 위한 에너지가 절약되게 된다.Through the configuration as described above, a predetermined amount of reducing agent is supplied from the reducing agent storage tank 21 to the reducing agent vaporizer 23 through the reducing agent injection pump 22 and the SCR catalyst of the thermal storage oxidizer 30 through the blower 24. As the high-temperature thermal energy of the part 34 side is supplied to the reducing agent vaporizer 23, the reducing agent can be sufficiently vaporized using the thermal energy of the thermal storage oxidizer 30 even if separate thermal energy is not separately supplied to the reducing agent vaporizer 23. , As the vaporized reducing agent is supplied to the exhaust gas supply unit 10, energy for vaporizing the reducing agent is saved.

축열산화장치(30)는 배가스와 환원제가 혼합된 상태의 배가스가 내부로 공급되어 소정 온도로 가열되도록 함으로써 배가스에 포함된 휘발성유기화합물(VOC)을 산화 분해시키는 구성이다.The thermal storage oxidizer 30 is configured to oxidize and decompose volatile organic compounds (VOC) contained in the exhaust gas by supplying the exhaust gas in a state in which the exhaust gas and the reducing agent are mixed and heated to a predetermined temperature.

이러한 축열산화장치(30)는 도 1 및 도 2에 도시된 바와 같이 내측 상부에 소정 크기의 연소실(A)이 형성되면서 상하로 소정 길이를 가지는 원통 모양의 반응탑하우징(31)과, 상기 반응탑하우징(31)의 내측 하부에 설치되어 배가스의 공급 및 배출 유로를 변경하는 밸브부재(32)와, 상기 밸브부재(32)의 상부에 위치되면서 연소실과 소정 간격 이격되어 설치되는 소정 두께의 축열재(33) 및 상기 축열재(33) 사이에 위치되면서 배가스공급부(10)를 통해 공급되는 배가스 중에 포함된 질소산화물(NOx)을 환원제와 반응시켜 질소(N2)와 수증기(H2O)로 환원시키는 SCR촉매부(34)를 포함한다.As shown in Figs. 1 and 2, the heat storage oxidizer 30 has a cylindrical reaction tower housing 31 having a predetermined length vertically while the combustion chamber A of a predetermined size is formed on the inner upper side, and the reaction A valve member 32 installed at the inner bottom of the top housing 31 to change the supply and discharge flow path of the exhaust gas, and a heat storage having a predetermined thickness installed at a predetermined distance from the combustion chamber while being located above the valve member 32 Nitrogen (N 2 ) and water vapor (H 2 O) by reacting nitrogen oxide (NOx) contained in the exhaust gas supplied through the exhaust gas supply unit 10 while being located between the ash 33 and the heat storage material 33 with a reducing agent It includes an SCR catalyst unit 34 to be reduced to.

그리고 반응탑하우징(31)에는 배가스공급부(10)와 연결되어 반응탑하우징(31)의 내측 하부로 배가스가 공급되도록 하는 입구(31A)가 형성되고, 상기 입구(31A)와 소정 거리 이격된 위치에는 반응탑하우징(31)의 내측에서 오염물질이 환원 및 산화되고 남은 클린가스가 배출되는 출구(31B)가 형성된다.In addition, the reaction tower housing 31 has an inlet 31A connected to the exhaust gas supply unit 10 so that the exhaust gas is supplied to the inner and lower portions of the reaction tower housing 31, and a position spaced apart from the inlet 31A by a predetermined distance. In the reaction tower housing 31, an outlet 31B through which pollutants are reduced and oxidized and the remaining clean gas is discharged is formed.

또한, 반응탑하우징(31)의 하부에는 밸브부재(32)의 동작 방식에 따라 반응탑하우징(31) 내부로 압축공기를 공급하는 퍼지에어(purge air) 공급관(도시하지 않음)이 더 구비될 수 있다.In addition, a purge air supply pipe (not shown) for supplying compressed air into the reaction tower housing 31 according to the operation method of the valve member 32 is further provided below the reaction tower housing 31. I can.

그리고 축열재(33)는 연소실(A)에서 발생하는 고온의 열에너지를 회수(흡수)하고, 회수된 열에너지를 재사용하여 열회수 효율을 높임으로써 운전비용을 절감하는 것으로, 이를 위해 열전도율, 내열성, 내식성이 우수하면서 열보존 효율이 우수한 세라믹 재질로 구성된다.In addition, the heat storage material 33 recovers (absorbs) high-temperature heat energy generated in the combustion chamber A, and reuses the recovered heat energy to increase heat recovery efficiency, thereby reducing operating costs. It is made of ceramic material that is excellent and has excellent heat preservation efficiency.

이에 더해 SCR촉매부(34)는 축열재(33)를 사이에 두고 연소실(A)과 소정 간격 이격되어 설치되고, 이를 통해 연소실(A)에서 휘발성유기화합물(VOC)이 산화 분해되도록 800~900℃로 유지되더라도 상대적으로 SCR촉매부(34)의 온도가 낮게 유지될 수 있으며, 그 결과 투입되는 배가스 중에 질소화합물(NOx)과 휘발성유기화합물(VOC)이 혼합된 경우라도 각각의 오염물질을 제거하기 위한 설비를 따로 구축할 필요 없이 800~900℃로 유지되는 고온의 연소실(A)과 축열재(33)를 통해 연소실(A)에 비해 상대적으로 낮은 온도로 유지되는 SCR촉매부(34)를 이용하여 이종의 오염물질이 동시에 제거되게 된다.In addition, the SCR catalyst unit 34 is installed at a predetermined distance from the combustion chamber A with the heat storage material 33 interposed therebetween, and through this, the volatile organic compound (VOC) is oxidatively decomposed from 800 to 900. Even if the temperature is maintained at ℃, the temperature of the SCR catalyst unit 34 can be kept relatively low, and as a result, each pollutant is removed even when nitrogen compounds (NOx) and volatile organic compounds (VOC) are mixed in the input exhaust gas. The SCR catalyst unit 34 maintained at a relatively low temperature compared to the combustion chamber A through a high-temperature combustion chamber (A) maintained at 800 to 900°C and a heat storage material (33) without the need to establish separate facilities for By using it, different kinds of contaminants are removed at the same time.

더욱이 배가스가 밸브부재(32)의 제어를 통해 선택된 2개의 유로 중, 일측 유로를 통해 SCR촉매부(34)와 축열재(33)를 통과하여 연소실(A)로 유입된 다음 타측 유로를 통해 축열재(33)와 SCR촉매부(34)를 재차 통과하게 되고, 이 과정에서 배가스의 포함된 질소화합물(NOx)의 반복적인 촉매 반응이 유도되기 때문에 질소화합물(NOx)의 환원 성능이 담보되게 된다.Furthermore, of the two flow paths selected through the control of the valve member 32, the exhaust gas passes through the SCR catalyst unit 34 and the heat storage material 33 through one flow path and flows into the combustion chamber A, and then heats up through the other flow path. The ash 33 and the SCR catalyst part 34 are passed again, and in this process, the repetitive catalytic reaction of the nitrogen compound (NOx) contained in the exhaust gas is induced, so the reduction performance of the nitrogen compound (NOx) is guaranteed .

버너(40)는 후술되는 제어부(50)의 제어를 통해 축열산화장치(30)의 연소실(A) 온도가 설정된 온도로 유지되도록 열풍을 공급하는 구성으로, 이러한 버너(40)는 연소실(A)의 내부와 연통되도록 직접 설치되거나 또는 도 1에 도시된 바와 같이 버너(40)를 통해 생성되는 고온 열기가 블로워(41)를 통해 연소실(A) 내부로 공급되도록 구성될 수 있다.The burner 40 is configured to supply hot air so that the temperature of the combustion chamber A of the heat storage oxidizer 30 is maintained at a set temperature through the control of the controller 50 to be described later. It may be installed directly so as to communicate with the inside of the unit, or may be configured such that high-temperature heat generated through the burner 40 is supplied into the combustion chamber A through the blower 41 as shown in FIG. 1.

제어부(50)는 환원제투입장치(20), 축열산화장치(30) 및 버너(40)의 동작을 제어하는 구성이다.The control unit 50 is configured to control the operation of the reducing agent injection device 20, the heat storage oxidizer 30, and the burner 40.

이러한 제어부(50)는 배가스공급부(10)를 통해 공급되는 배가스 중에 포함된 오염물질을 감지하고, 이를 통해 버너(40)의 동작 온도를 결정하게 된다.The control unit 50 detects pollutants contained in the exhaust gas supplied through the exhaust gas supply unit 10 and determines the operating temperature of the burner 40 through this.

이때 배가스에 질소산화물(NOx)만이 포함된 경우에는 연소실(A) 온도가 300~400℃로 유지되도록 버너(40)의 동작을 제어하고, 배가스에 질소산화물(NOx)과 휘발성유기화합물(VOC)이 동시에 포함된 경우에는 연소실(A) 온도가 800~900℃가 되도록 버너(40)의 동작을 제어하게 된다.At this time, when only nitrogen oxide (NOx) is included in the exhaust gas, the operation of the burner 40 is controlled so that the temperature of the combustion chamber (A) is maintained at 300 to 400°C, and nitrogen oxides (NOx) and volatile organic compounds (VOC) are included in the exhaust gas. When these are included at the same time, the operation of the burner 40 is controlled so that the temperature of the combustion chamber A is 800 to 900°C.

이하에서는 고효율 에너지 절감형 NOx 및 VOC 제거설비가 배가스에 포함된 오염물질에 따라 동작되는 예에 대하여 설명한다.Hereinafter, an example in which a high-efficiency energy-saving NOx and VOC removal facility is operated according to pollutants contained in exhaust gas will be described.

(1) 실시예 1(1) Example 1

실시예 1은 본 발명에 따른 고효율 에너지 절감형 NOx 및 VOC 제거설비가 배가스에 포함된 질소산화물(NOx)을 제거하기 위해 운용되는 예로서, 이를 위해 각종 설비의 후단에 배가스공급부(10)의 유입관(11A)이 연결되고, 버너(40)는 제어부(50)의 제어를 통해 축열산화장치(30)의 연소실(A) 온도가 350~400℃로 유지되도록 운전되게 된다.Example 1 is an example in which a high-efficiency energy-saving NOx and VOC removal facility according to the present invention is operated to remove nitrogen oxides (NOx) contained in exhaust gas, for this purpose, the inflow of the exhaust gas supply unit 10 to the rear end of various facilities The pipe 11A is connected, and the burner 40 is operated so that the temperature of the combustion chamber A of the heat storage oxidizer 30 is maintained at 350 to 400°C through the control of the controller 50.

그리고 환원제투입장치(20)를 통해 배가스공급부(10)로 유입되는 배가스의 유량에 맞추어 소정량의 환원제가 공급되어 본체(11) 내부의 분사관(12)을 통해 분사되고, 이를 통해 배가스와 환원제가 혼합된 상태에서 축열산화장치(30)의 반응탑하우징(31)으로 공급되게 된다.In addition, a predetermined amount of reducing agent is supplied according to the flow rate of the exhaust gas flowing into the exhaust gas supply unit 10 through the reducing agent injection device 20 and injected through the injection pipe 12 inside the main body 11, through which the exhaust gas and the reducing agent Is supplied to the reaction tower housing 31 of the heat storage oxidizer 30 in a mixed state.

이때 반응탑하우징(31)의 밸브부재(32)는 배가스가 유입 및 배출되는 유로를 선택하게 되고, 이렇게 선택된 유로를 통해 환원제가 혼합된 배가스가 SCR촉매부(34)를 통과하면서 1차 촉매 반응이 유도되어 배가스에 포함된 질소산화물(NOx)이 질소(N2)와 수증기(H2O)로 일부 환원되게 된다.At this time, the valve member 32 of the reaction tower housing 31 selects a flow path through which the exhaust gas is introduced and discharged, and the exhaust gas mixed with the reducing agent passes through the SCR catalyst unit 34 through the selected flow channel, and a primary catalytic reaction. As a result, nitrogen oxides (NOx) contained in the exhaust gas are partially reduced to nitrogen (N 2 ) and water vapor (H 2 O).

여기서 1차 촉매 반응은 배가스의 잔열과 축열재(33)로부터 전달되는 일부의 열에너지를 통해 촉매 반응이 유도되고, 이후 연소실(A)을 거쳐 배가스가 340~400℃로 가열된 다음, SCR촉매부(34)를 통과하여 배출되는 과정에서 2차 촉매 반응이 유도되며, 이러한 2차 촉매 반응을 통해 배가스에 포함된 질소산화물(NOx)이 질소(N2)와 수증기(H2O)로 확실하게 환원되게 되고, 그 결과 출구(31B)를 통해 오염물질이 제거된 클린가스가 배출되게 된다.Here, in the first catalytic reaction, a catalytic reaction is induced through residual heat of the exhaust gas and some heat energy transferred from the heat storage material 33, and then the exhaust gas is heated to 340 to 400°C through the combustion chamber (A), and then the SCR catalyst unit In the process of being discharged through (34), a secondary catalytic reaction is induced, and through this secondary catalytic reaction, nitrogen oxides (NOx) contained in the exhaust gas are reliably reduced to nitrogen (N2) and water vapor (H2O). As a result, clean gas from which pollutants have been removed is discharged through the outlet 31B.

(2) 실시예 2(2) Example 2

실시예 2는 본 발명에 따른 고효율 에너지 절감형 NOx 및 VOC 제거설비가 배가스에 포함된 질소산화물(NOx)과 휘발성유기화합물(VOC)을 동시에 제거하기 위해 운용되는 예로서, 각종 설비의 후단에 배가스공급부(10)의 유입관(11A)이 연결되고, 버너(40)는 제어부(50)의 제어를 통해 축열산화장치(30)의 연소실(A) 온도가 800~900℃로 유지되도록 운전되게 된다.Example 2 is an example in which the high-efficiency energy-saving NOx and VOC removal facility according to the present invention is operated to simultaneously remove nitrogen oxides (NOx) and volatile organic compounds (VOC) contained in exhaust gas. The inlet pipe 11A of the supply unit 10 is connected, and the burner 40 is operated so that the temperature of the combustion chamber A of the heat storage oxidizer 30 is maintained at 800 to 900°C through the control of the control unit 50. .

그리고 환원제투입장치(20)를 통해 배가스공급부(10)로 유입되는 배가스의 유량에 맞추어 소정량의 환원제가 공급되어 본체(11) 내부의 분사관(12)을 통해 분사되고, 이를 통해 배가스와 환원제가 혼합된 상태에서 축열산화장치(30)의 반응탑하우징(31)으로 공급되게 된다.In addition, a predetermined amount of reducing agent is supplied according to the flow rate of the exhaust gas flowing into the exhaust gas supply unit 10 through the reducing agent injection device 20 and injected through the injection pipe 12 inside the main body 11, through which the exhaust gas and the reducing agent Is supplied to the reaction tower housing 31 of the heat storage oxidizer 30 in a mixed state.

이때 반응탑하우징(31)의 밸브부재(32)는 배가스가 유입 및 배출되는 유로를 선택하게 되고, 이렇게 선택된 유로를 통해 환원제가 혼합된 배가스가 SCR촉매부(34)를 통과하면서 1차 촉매 반응이 유도되어 배가스에 포함된 질소산화물(NOx)이 질소(N2)와 수증기(H2O)로 환원되게 된다.At this time, the valve member 32 of the reaction tower housing 31 selects a flow path through which the exhaust gas is introduced and discharged, and the exhaust gas mixed with the reducing agent passes through the SCR catalyst unit 34 through the selected flow channel, and a primary catalytic reaction. This is induced, and nitrogen oxides (NOx) contained in the exhaust gas are reduced to nitrogen (N 2 ) and water vapor (H 2 O).

여기서 1차 촉매 반응은 배가스의 잔열과 축열재(33)로부터 전달되는 일부의 열에너지를 통해 촉매 반응이 유도되고, 이후 연소실(A)을 거쳐 배가스가 800~900℃로 가열되며, 이를 통해 배가스에 포함된 휘발성유기화합물(VOC)이 산화(연소) 분해되게 된다.Here, in the first catalytic reaction, the catalytic reaction is induced through residual heat of the exhaust gas and some heat energy transferred from the heat storage material 33, and then the exhaust gas is heated to 800 ~ 900°C through the combustion chamber (A). The contained volatile organic compounds (VOC) are oxidatively (burned) decomposed.

이렇게 연소실(A)에서 휘발성유기화합물(VOC)이 산화(연소) 분해된 배가스는 재차 SCR촉매부(34)를 통과하여 배출되는 과정에서 2차 촉매 반응이 유도되고, 이러한 2차 촉매 반응을 통해 배가스에 잔존하는 질소산화물(NOx)이 질소(N2)와 수증기(H2O)로 추가 환원되게 되며, 그 결과 출구(31B)를 통해 질소산화물(NOx)과 휘발성유기화합물(VOC)이 동시에 제거된 클린가스가 배출되게 된다.In this way, in the process of oxidizing (combustion) decomposing volatile organic compounds (VOC) in the combustion chamber (A), a second catalytic reaction is induced in the process of being discharged through the SCR catalyst unit 34 again. Nitrogen oxides (NOx) remaining in the exhaust gas are further reduced to nitrogen (N 2 ) and water vapor (H 2 O), and as a result, nitrogen oxides (NOx) and volatile organic compounds (VOC) are simultaneously reduced through the outlet 31B. The removed clean gas is discharged.

이상 설명한 바와 같이 본 발명은 각종 설비의 하류측(후단)에 설치되어 배가스공급부를 통해 축열산화장치 내부로 공급되는 배가스 중에 포함된 오염물질에 따라 버너의 온도가 조절되어 운전되고, 이를 통해 필요에 따라 질소산화물(NOx) 또는 질소산화물(NOx)과 휘발성유기화합물(VOC)을 동시에 제거하게 되며, 그 결과 배가스에 포함된 오염물질을 제거하기 위한 설비가 간소화되게 된다.As described above, according to the present invention, the temperature of the burner is controlled and operated according to the pollutants contained in the exhaust gas supplied into the heat storage oxidizer through the exhaust gas supply unit installed on the downstream side (rear end) of various facilities. Accordingly, nitrogen oxides (NOx) or nitrogen oxides (NOx) and volatile organic compounds (VOC) are simultaneously removed, and as a result, facilities for removing pollutants contained in exhaust gas are simplified.

또한, 질소산화물의 촉매 반응이 축열산화장치 내부에서 이루어지기 때문에 질소산화물을 환원시키기 위해 촉매 반응 온도까지 상승된 열에너지의 손실을 줄일 수 있고, 그 결과 열에너지의 이용 효율이 향상되어 에너지가 절약되게 된다.In addition, since the catalytic reaction of nitrogen oxides takes place inside the thermal storage oxidizer, it is possible to reduce the loss of heat energy that has risen to the catalytic reaction temperature to reduce nitrogen oxides, and as a result, the efficiency of use of heat energy is improved and energy is saved .

이에 더해 환원제투입장치가 축열산화장치의 외부에 위치되어 배가스에 환원제가 혼합된 상태로 SCR촉매부를 통과하게 되므로 배가스와 환원제의 혼합 효율이 향상되고, 이에 의해 촉매 반응의 성능이 향상되며, 환원제를 기화시키는 열원은 축열산화장치의 고온 가스를 기화에너지로 사용하여 별도의 추가 에너지 없이 운전할 수 있으므로 에너지 절감효과가 향상되게 된다.In addition, since the reducing agent injection device is located outside the thermal storage oxidizer and passes through the SCR catalyst unit in a state in which the reducing agent is mixed with the exhaust gas, the mixing efficiency of the exhaust gas and the reducing agent is improved, thereby improving the performance of the catalytic reaction, and The heat source to vaporize can be operated without additional energy by using the high temperature gas of the heat storage oxidizer as vaporization energy, so that the energy saving effect is improved.

위에서는 설명의 편의를 위해 바람직한 실시예를 도시한 도면과 도면에 나타난 구성에 도면부호와 명칭을 부여하여 설명하였으나, 이는 본 발명에 따른 하나의 실시예로서 도면상에 나타난 형상과 부여된 명칭에 국한되어 그 권리범위가 해석되어서는 안 될 것이며, 발명의 설명으로부터 예측 가능한 다양한 형상으로의 변경과 동일한 작용을 하는 구성으로의 단순 치환은 통상의 기술자가 용이하게 실시하기 위해 변경 가능한 범위 내에 있음은 지극히 자명하다고 볼 것이다.In the above, for convenience of explanation, the drawings showing the preferred embodiments and the configurations shown in the drawings have been described with reference numerals and names, but this is an embodiment according to the present invention, and the shape and the assigned name are given in the drawings. It is limited and the scope of the rights should not be interpreted, and the simple substitution of a configuration that has the same action as a change to a variety of predictable shapes from the description of the invention is within the range that can be changed for easy implementation by a skilled person You will see it extremely self-evident.

10: 배가스공급부 11: 본체
11A: 유입관 11B: 배출관
12: 분사관 20: 환원제투입장치
21: 환원제 저장탱크 22: 환원제 주입펌프
23: 환원제 기화기 24: 블로워
30: 축열산화장치 31: 반응탑하우징
31A: 입구 31B: 출구
32: 밸브부재 33: 축열재
34: SCR촉매부 40: 버너
41: 블로워 50: 제어부
A: 연소실10: exhaust gas supply part 11: main body
11A: inlet pipe 11B: discharge pipe
12: injection pipe 20: reducing agent injection device
21: reducing agent storage tank 22: reducing agent injection pump
23: reducing agent vaporizer 24: blower
30: heat storage oxidizer 31: reaction tower housing
31A: entrance 31B: exit
32: valve member 33: heat storage material
34: SCR catalyst unit 40: burner
41: blower 50: control unit
A: combustion chamber

Claims (6)

배가스가 내부로 공급되는 배가스공급부(10);
상기 배가스공급부(10)의 일측에 연결되면서 상기 배가스공급부(10)의 내부로 소정량의 환원제를 투입하는 환원제투입장치(20);
하부 일측이 상기 배가스공급부(10)와 연결되어 내부로 배가스가 공급되고, 상부를 경유하여 하부 타측으로 배가스가 배출되도록 구성되며, 상부에서 배가스 중에 포함되는 휘발성유기화합물(VOC)이 소정 온도로 가열되어 산화 분해되도록 하는 축열산화장치(30):
상기 축열산화장치(30)의 상부 일측에 연결되면서 상기 축열산화장치(30)의 내부로 소정 온도로 가열된 열풍을 공급하는 버너(40); 및
상기 환원제투입장치(20), 축열산화장치(30) 및 버너(40)의 동작을 제어하는 제어부(50);
를 포함하고,
상기 축열산화장치(30)는,
내측 상부에 소정 크기의 연소실(A)이 형성되는 반응탑하우징(31);
상기 반응탑하우징(31)의 내측 하부에 설치되는 밸브부재(32);
상기 밸브부재(32)의 상부에 상기 연소실(A)과 소정 간격 이격되어 설치되는 소정 두께의 축열재(33); 및
상기 축열재(33) 사이에 위치되면서 상기 배가스공급부(10)를 통해 공급되는 배가스 중에 포함된 질소산화물(NOx)을 환원제와 반응시켜 질소(N2)와 수증기(H2O)로 환원시키는 SCR촉매부(34);
를 포함하며,
상기 환원제투입장치(20)는,
소정량의 환원제가 저장되는 환원제 저장탱크(21);
상기 환원제 저장탱크(21)에 저장된 환원제를 공급하는 환원제 주입펌프(22);
상기 환원제 주입펌프를 통해 공급되는 환원제를 가열하여 기화시키는 환원제 기화기(23); 및
상기 축열산화장치(30) 쪽의 고온 열에너지를 상기 환원제 기화기(23) 쪽으로 공급하는 블로워(24);
를 포함하는 것을 특징으로 하는 고효율 에너지 절감형 NOx 및 VOC 제거설비.
An exhaust gas supply unit 10 through which exhaust gas is supplied to the inside;
A reducing agent injection device (20) connected to one side of the exhaust gas supply unit (10) and injecting a predetermined amount of reducing agent into the exhaust gas supply unit (10);
One lower side is connected to the exhaust gas supply unit 10 to supply exhaust gas to the inside, and exhaust gas is discharged to the other lower side through the upper side, and the volatile organic compound (VOC) contained in the exhaust gas is heated to a predetermined temperature from the upper side Heat storage oxidizing device 30 to be oxidized and decomposed:
A burner 40 connected to an upper side of the heat storage oxidation device 30 and supplying hot air heated to a predetermined temperature into the heat storage oxidation device 30; And
A control unit 50 for controlling the operation of the reducing agent injection device 20, the heat storage oxidizer 30, and the burner 40;
Including,
The heat storage oxidation device 30,
A reaction tower housing 31 in which a combustion chamber A of a predetermined size is formed on the inner upper side;
A valve member 32 installed below the reaction tower housing 31;
A heat storage material (33) having a predetermined thickness installed on the upper portion of the valve member (32) and spaced apart from the combustion chamber (A) by a predetermined distance; And
SCR located between the heat storage material 33 and reacting nitrogen oxide (NOx) contained in the exhaust gas supplied through the exhaust gas supply unit 10 with a reducing agent to reduce it to nitrogen (N 2 ) and water vapor (H 2 O) A catalyst part 34;
Including,
The reducing agent injection device 20,
A reducing agent storage tank 21 in which a predetermined amount of the reducing agent is stored;
A reducing agent injection pump 22 for supplying a reducing agent stored in the reducing agent storage tank 21;
A reducing agent vaporizer 23 for heating and vaporizing the reducing agent supplied through the reducing agent injection pump; And
A blower 24 for supplying high-temperature thermal energy from the heat storage oxidizer 30 to the reducing agent vaporizer 23;
High-efficiency energy-saving NOx and VOC removal equipment comprising a.
 청구항 1에 있어서,
상기 제어부(50)는,
상기 배가스공급부(10)를 통해 상기 축열산화장치(30)로 공급되는 배가스 중에 포함된 오염물질이 질소산화물(NOx)인 경우, 상기 버너(40)의 동작을 제어하여 상기 축열산화장치(30)의 상기 연소실(A) 온도가 300~400℃가 되도록 유지시키는 것을 특징으로 하는 고효율 에너지 절감형 NOx 및 VOC 제거설비.
The method according to claim 1,
The control unit 50,
When the pollutant contained in the exhaust gas supplied to the heat storage oxidizer 30 through the exhaust gas supply unit 10 is nitrogen oxide (NOx), the heat storage oxidizer 30 by controlling the operation of the burner 40 High-efficiency energy-saving NOx and VOC removal equipment, characterized in that maintaining the combustion chamber (A) temperature of 300 ~ 400 ℃.
 청구항 1에 있어서,
상기 제어부(50)는,
상기 배가스공급부(10)를 통해 상기 축열산화장치(30)로 공급되는 배가스 중에 포함된 오염물질이 질소산화물(NOx)과 휘발성유기화합물(VOC)인 경우, 상기 버너(40)의 동작을 제어하여 상기 축열산화장치(30)의 상기 연소실(A) 온도가 800~900℃가 되도록 유지시키는 것을 특징으로 하는 고효율 에너지 절감형 NOx 및 VOC 제거설비.
The method according to claim 1,
The control unit 50,
When the pollutants contained in the exhaust gas supplied to the heat storage oxidizer 30 through the exhaust gas supply unit 10 are nitrogen oxides (NOx) and volatile organic compounds (VOC), the operation of the burner 40 is controlled. High-efficiency energy-saving NOx and VOC removal equipment, characterized in that maintaining the temperature of the combustion chamber (A) of the heat storage oxidizer (30) to 800 ~ 900 ℃.
 청구항 1에 있어서,
상기 축열재(33)는,
세라믹 재질로 이루어지는 것을 특징으로 하는 고효율 에너지 절감형 NOx 및 VOC 제거설비.
The method according to claim 1,
The heat storage material 33,
High-efficiency energy-saving NOx and VOC removal equipment, characterized in that made of a ceramic material.
 청구항 1에 있어서,
상기 배가스공급부(10)는,
내부에 소정 크기의 공간이 형성되는 사각 박스 또는 원통 형상의 본체(11); 및
상기 본체(11)의 내부에 복수 열로 설치되는 분사관(12);
을 포함하고,
상기 본체(11)의 양측면에는,
소정 지름의 유입관(11A)과 배출관(11B)이 설치되는 것을 특징으로 하는 고효율 에너지 절감형 NOx 및 VOC 제거설비.
The method according to claim 1,
The exhaust gas supply unit 10,
A square box or a cylindrical body 11 having a space of a predetermined size formed therein; And
Injection pipes 12 installed in a plurality of rows inside the main body 11;
Including,
On both sides of the main body 11,
High-efficiency energy-saving NOx and VOC removal equipment, characterized in that the inlet pipe (11A) and the discharge pipe (11B) of a predetermined diameter are installed.
 삭제delete
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CN114797456A (en) * 2022-04-28 2022-07-29 博爱金隅水泥有限公司 Cement kiln tail flue gas degree of depth denitration deamination system
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WO2023210923A1 (en) * 2022-04-25 2023-11-02 (주) 세라컴 Volatile organic compound treatment system for regeneration and treatment of activated carbon honeycomb filter by using incineration plant waste heat
CN114797456A (en) * 2022-04-28 2022-07-29 博爱金隅水泥有限公司 Cement kiln tail flue gas degree of depth denitration deamination system
CN114797456B (en) * 2022-04-28 2023-09-29 博爱金隅水泥有限公司 Cement kiln tail flue gas degree of depth denitration deamination system

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