KR20230022460A - Condensed wastewater treatment and air pollutants reduction system of the resulting from pyrolyzing oil producing facilities - Google Patents

Condensed wastewater treatment and air pollutants reduction system of the resulting from pyrolyzing oil producing facilities Download PDF

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KR20230022460A
KR20230022460A KR1020210103326A KR20210103326A KR20230022460A KR 20230022460 A KR20230022460 A KR 20230022460A KR 1020210103326 A KR1020210103326 A KR 1020210103326A KR 20210103326 A KR20210103326 A KR 20210103326A KR 20230022460 A KR20230022460 A KR 20230022460A
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pyrolysis
condensed
facility
steam
gas discharged
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KR102626871B1 (en
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최국균
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그린웍스 주식회사
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/005Separation 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/40Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/043Details
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/16Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00Recovery or working-up of waste materials
    • C08J11/04Recovery or working-up of waste materials of polymers
    • C08J11/10Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/12Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/10Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/008Adaptations for flue gas purification in steam generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • F23G5/442Waste feed arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/02Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04Disintegrating plastics, e.g. by milling
    • B29B2017/0424Specific disintegrating techniques; devices therefor
    • B29B2017/0496Pyrolysing the materials

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
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  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
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  • Medicinal Chemistry (AREA)
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Abstract

Disclosed in the present invention is a system for reducing air pollutants and treating condensed wastewater generated from a polymer waste pyrolysis emulsification facility, comprising: a mixer which promotes the mixing of combustion gas discharged from a heating furnace of a pyrolysis emulsification facility and steam evaporated from condensed wastewater separated from pyrolysis oil to equalize the temperature so as to simultaneously treat and remove non-condensed gas and condensed wastewater generated during a process of pyrolyzing polymer waste in the pyrolysis emulsification facility by using the combustion gas discharged from the heating furnace of the pyrolysis emulsification facility; a heat exchanger which increases the temperature of the mixed gas supplied from the mixer; a direct oxidation device which receives the non-condensed gas discharged from the pyrolysis emulsification facility and the mixed gas from the heat exchanger, heats the gases by a burner, oxidizes the gases at high temperature, and discharges the gases; a steam boiler which produces steam using flue gas discharged from the direct oxidation device; an evaporation device which receives the steam from the steam boiler to instantly evaporate the condensed wastewater discharged from the pyrolysis emulsification facility and sends the steam generated by the evaporation to the mixer; and a filter dust collector which separates and collects harmful particles and pollutants in the flue gas discharged through the steam boiler. Accordingly, the system reduces emission of non-condensable gases and evaporates and removes condensed wastewater by using waste heat.

Description

고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템{CONDENSED WASTEWATER TREATMENT AND AIR POLLUTANTS REDUCTION SYSTEM OF THE RESULTING FROM PYROLYZING OIL PRODUCING FACILITIES}Air pollutant reduction and condensed wastewater treatment system generated from polymer waste pyrolysis and emulsification facilities

본 발명은 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템에 관한 것으로서, 더욱 상세하게는 폐합성수지와 같은 고분자 폐기물을 열분해하는 과정에서 발생한 비응축가스와 응축폐수를 동시에 별도의 열원 없이 그 열분해 유화시설의 가열로에서 배출되는 연소가스를 이용하여 효율적으로 처리 및 제거할 수 있는 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템에 관한 것이다.The present invention relates to a system for reducing air pollutants and treating condensate wastewater generated in a polymer waste pyrolysis and emulsification facility, and more particularly, to simultaneously separate non-condensable gas and condensate wastewater generated in the process of pyrolyzing polymer waste such as waste synthetic resin. It relates to a system for reducing air pollutants and condensate wastewater generated in a polymer waste pyrolysis/emulsion facility that can efficiently treat and remove combustion gases discharged from a heating furnace of the pyrolysis/emulsion facility without a heat source.

오늘날 폐합성수지, 폐플라스틱, 폐고무, 폐비닐 등의 고분자류 폐기물은 일부 분류 및 선별하여 재활용 및 재생원료로 사용하고 있으나, 그 비율은 극히 미미하고 대부분 소각처리 또는 매립하고 있어 자원낭비는 물론 대기, 토양 등의 심각한 2차 환경오염을 유발하고 있다.Today, high-molecular wastes such as waste synthetic resin, waste plastic, waste rubber, and waste vinyl are partially classified and sorted to be recycled and used as raw materials for recycling. , it is causing serious secondary environmental pollution such as soil.

최근에는 플라스틱 원자재, 연료유 등의 원료인 석유류의 유가상승에 따른 자원의 순환적 이용을 위한 방안으로 다양한 종류의 폐합성수지를 재활용하는 기술 개발이 활성화되고 있으며, 아울러 열가소성 고분자류 폐기물을 열분해 및 용융하여 유용한 기름을 얻을 수 있는 유화방법이나 그 장치에 대한 연구 개발이 활발하게 이루어지고 있다.Recently, the development of technology to recycle various types of waste synthetic resins is being activated as a way to cyclically use resources due to the rise in oil prices of petroleum, which is a raw material for plastic raw materials and fuel oil, and in addition, pyrolysis and melting of thermoplastic polymer wastes Research and development on emulsification methods and devices that can obtain useful oil by doing so are being actively conducted.

일반적인 고분자 폐기물의 유화는 무산소 분위기(atmosphere) 및 조건하에서 외부에서 열(350~450℃)을 가하여 고분자를 구성하는 탄소 사슬을 끊어서 저분자로 만드는 열분해 반응이나 탄소 결합의 절단 또는 탄소와 수소 결합의 절단으로 생성물의 탄소수 분포를 조절하는 촉매분해를 통하여 저분자의 액체를 생성하는 조작이므로 소각처리와는 달리 열분해 과정에서 다이옥신과 같은 유해물질 및 폐수나 폐기물 등의 배출을 최소화하여 2차적인 공해 및 환경오염을 줄일 수 있다.Emulsification of general polymeric waste is a pyrolysis reaction that breaks the carbon chain constituting the polymer into a low molecule by applying heat (350 ~ 450℃) from the outside under an anoxic atmosphere and conditions, or cleavage of carbon bonds or cleavage of carbon and hydrogen bonds. Unlike incineration, it is an operation that produces low-molecular liquid through catalytic decomposition that controls the carbon number distribution of the product. Unlike incineration, it minimizes the emission of harmful substances such as dioxin and wastewater or waste during the thermal decomposition process, resulting in secondary pollution and environmental pollution. can reduce

그런데 종래의 고분자 폐기물의 열분해 유화시설은 고분자 폐기물을 상압(대기압)에서 인공적으로 열분해하는 과정 중 발생하는 유증기를 응축하여 생성유를 얻고, 아울러 응축되지 않은 비응축성 탄화수소 등의 비응축가스는 바로 대기 중으로 배출하거나 연소시켜 배출하고 있다.However, conventional pyrolysis and emulsification facilities for polymer waste condense oil vapor generated during artificial pyrolysis of polymer waste at normal pressure (atmospheric pressure) to obtain product oil, and non-condensable gases such as non-condensable hydrocarbons are directly in the atmosphere. It is discharged into the air or burned.

즉, 비응축가스는 에너지로 활용되지 못하고 연소 후 또는 바로 대기 중으로 배출함으로써 2차 공해를 유발하는 문제점이 있다.That is, non-condensable gas is not utilized as energy and is discharged into the atmosphere after combustion or immediately, thereby causing secondary pollution.

또한, 고분자 폐기물을 열분해하는 과정에서 부수적으로 발생하는 응축폐수를 하천으로 방류함으로써 수질오염을 유발하는 문제점이 있다.In addition, there is a problem of causing water pollution by discharging condensed wastewater incidentally generated in the process of pyrolyzing polymer waste into a river.

여기서 상술한 배경기술 또는 종래기술은 본 발명자가 보유하거나 본 발명을 도출하는 과정에서 습득한 정보로서 본 발명의 기술적 의의를 이해하는데 도움이 되기 위한 것일 뿐, 본 발명의 출원 전에 이 발명이 속하는 기술분야에서 널리 알려진 기술을 의미하는 것은 아님을 밝히며, 아울러 종래기술에서의 도면 부호는 본 발명에서의 도면 부호와 상호 무관한 것이다.The background art or prior art described above herein is information possessed by the present inventor or acquired in the process of deriving the present invention, and is only intended to help understand the technical significance of the present invention, prior to the filing of the present invention, the technology to which this invention belongs It is revealed that it does not mean widely known technology in the field, and reference numerals in the prior art are irrelevant to the reference numerals in the present invention.

KR 특허등록 제10-2262779호 B1(2021.06.03)KR Patent Registration No. 10-2262779 B1 (2021.06.03) KR 특허등록 제10-0526017호 B1(2005.10.27)KR Patent Registration No. 10-0526017 B1 (2005.10.27) KR 특허등록 제10-2095746호 B1(2020.03.26)KR Patent Registration No. 10-2095746 B1 (2020.03.26)

이에 본 발명자는 상술한 제반 사항을 종합적으로 고려함과 동시에 기존의 고분자 폐기물 열분해 유화시설 기술이 지닌 기술적 한계 및 문제점들을 해결하려는 발상에서, 폐합성수지와 같은 고분자 폐기물을 열분해하는 과정에서 발생한 비응축가스와 응축폐수를 별도의 열원 없이 그 열분해 유화시설의 가열로에서 배출되는 연소가스를 이용하여 동시에 효율적으로 처리 및 제거할 수 있는 새로운 구조의 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템을 개발하고자 각고의 노력을 기울여 부단히 연구하던 중 그 결과로써 본 발명을 창안하게 되었다.Accordingly, the present inventor comprehensively considers the above-mentioned matters and at the same time, in order to solve the technical limitations and problems of the existing polymer waste pyrolysis and emulsification facility technology, the non-condensable gas and A new structure that can efficiently treat and remove condensate wastewater at the same time using the combustion gas discharged from the heating furnace of the pyrolysis and emulsification facility without a separate heat source. Reduction of air pollutants and condensation wastewater treatment The present invention was created as a result of continuous research with great efforts to develop the system.

따라서 본 발명이 해결하고자 하는 기술적 과제 및 목적은 비응축가스의 배출을 저감하고, 아울러 폐열을 이용하여 응축폐수를 증발시켜 제거할 수 있도록 하는 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템을 제공하는 데 있는 것이다.Therefore, the technical problem and object to be solved by the present invention are to reduce the emission of non-condensable gas, and to reduce and condense air pollutants generated from polymer waste pyrolysis and emulsification facilities that can evaporate and remove condensed wastewater using waste heat. It is to provide a wastewater treatment system.

여기서 본 발명이 해결하고자 하는 기술적 과제 및 목적은 이상에서 언급한 기술적 과제 및 목적으로 국한하지 않으며, 언급하지 않은 또 다른 기술적 과제 및 목적들은 아래의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 명확하게 이해할 수 있을 것이다.Here, the technical problems and objects to be solved by the present invention are not limited to the technical problems and objects mentioned above, and other technical problems and objects that are not mentioned are the general knowledge in the technical field to which the present invention belongs from the description below. Those who have it will be able to clearly understand.

상술한 바와 같은 본 발명의 기술적 과제를 해결하기 위한 새로운 착상을 구체화하면서 특정의 기술적 목적을 효과적으로 달성하기 위한 본 발명의 실시 태양(aspect)에 따른 구체적인 수단은, 열분해 유화시설에서 고분자 폐기물을 열분해하는 과정에서 발생한 비응측가스와 응축폐수를 상기 열분해 유화시설의 가열로에서 배출되는 연소가스를 이용하여 동시에 처리 및 제거하기 위해, 상기 열분해 유화시설의 가열로에서 배출되는 연소가스와 열분해유에서 분리된 응축폐수를 증발시킨 증기의 혼합을 촉진하여 온도를 균일하게 하는 혼합기, 상기 혼합기로부터 공급되는 혼합가스의 온도를 높이는 열교환기, 상기 열분해 유화시설에서 배출되는 비응축가스와 상기 열교환기로부터 혼합가스를 공급받아 버너로 가열하여 고온에서 산화시켜 배출하는 직접산화장치(TO: Thermal Oxidizer), 상기 직접산화장치에서 배출되는 플루가스를 이용해 증기를 생산하는 스팀보일러, 상기 스팀보일러로부터 증기를 송입(送入)해서 상기 열분해 유화시설에서 배출되는 응축폐수를 순간적으로 증발시키고, 그 증발에 의해 생긴 증기를 상기 혼합기로 보내는 증발장치 및 상기 스팀보일러를 거쳐 배출되는 플루가스 내 유해 입자 및 오염물질을 분리하여 포집하는 여과집진기를 포함하여 채용하는 것을 특징으로 하는 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템을 제시한다.Specific means according to an aspect of the present invention for effectively achieving a specific technical object while embodying a new idea for solving the technical problem of the present invention as described above is to pyrolyze polymer waste in a pyrolysis and emulsification facility. In order to simultaneously treat and remove the non-condensed gas and condensed wastewater generated in the process using the combustion gas discharged from the heating furnace of the pyrolysis and emulsification facility, separate from the combustion gas and pyrolysis oil discharged from the heating furnace of the pyrolysis and emulsification facility A mixer that promotes mixing of steam from evaporating condensate wastewater to make the temperature uniform, a heat exchanger that increases the temperature of the mixed gas supplied from the mixer, and a mixed gas from the heat exchanger A thermal oxidizer (TO) that receives supply and heats it with a burner to oxidize and discharge it at a high temperature, a steam boiler that produces steam using flue gas discharged from the direct oxidizer, and feeds steam from the steam boiler ) to instantly evaporate the condensed wastewater discharged from the thermal decomposition and emulsification facility, and an evaporator that sends the steam generated by the evaporation to the mixer and the steam boiler. Harmful particles and contaminants in the flue gas discharged through the boiler are separated and collected Suggests an air pollutant reduction and condensate wastewater treatment system generated from a polymer waste pyrolysis and emulsification facility, characterized in that it is employed, including a filtering dust collector.

이로써 본 발명은 고분자 폐기물을 열분해하는 과정에서 발생한 비응축가스와 응축폐수를 별도의 열원 없이 그 열분해 유화시설의 가열로에서 배출되는 연소가스를 이용하여 동시에 효율적으로 처리 및 제거할 수 있다.Accordingly, the present invention can efficiently treat and remove non-condensable gas and condensed wastewater generated in the process of thermal decomposition of polymeric waste at the same time using the combustion gas discharged from the heating furnace of the thermal decomposition and emulsification facility without a separate heat source.

즉, 열분해 유화시설의 가열로에서 배출되는 연소가스와 열분해유에서 분리된 응축폐수를 증발시킨 증기를 혼합하고 열교환기를 통해 승온시킨 후 직접산화장치로 공급하여 고온에서 이산화탄소와 물로 산화(소각) 처리하며, 아울러 혼합가스의 산화 과정에서 발생한 폐열을 이용하여 증기를 생산하고, 이를 응축폐수를 증발시키기 위한 열원으로 활용할 수 있어, 별도의 열원이나 비용 투입 없이도 비응축가스의 배출로 인한 대기오염물질을 저감하고 응축폐수를 경제적으로 처리할 수 있다.In other words, the combustion gas discharged from the heating furnace of the pyrolysis oil facility and the vapor obtained by evaporating the condensed wastewater separated from the pyrolysis oil are mixed, the temperature is raised through a heat exchanger, and then supplied to the direct oxidation device to be oxidized (incinerated) with carbon dioxide and water at a high temperature. In addition, steam is produced using waste heat generated in the oxidation process of the mixed gas, and it can be used as a heat source to evaporate condensed wastewater. It can reduce and economically treat condensate wastewater.

또한, 본 발명의 바람직한 실시 태양(aspect)으로, 상기 혼합기로부터 상기 열교환기에 공급되는 혼합가스는 상기 직접산화장치에서 배출되는 플루가스를 열원으로 하여 열교환이 이루어지고, 상기 열교환기를 통과한 플루가스는 혼합가스와의 열교환에 의해 냉각된 상태로 상기 여과집진기로 보내짐으로써 별도의 열원 없이 효율적으로 처리 및 제거할 수 있다.In addition, in a preferred embodiment of the present invention, the mixed gas supplied from the mixer to the heat exchanger is heat exchanged using the flue gas discharged from the direct oxidation device as a heat source, and the flue gas passing through the heat exchanger By being sent to the bag filter in a cooled state by heat exchange with the mixed gas, it can be efficiently treated and removed without a separate heat source.

또한, 본 발명의 바람직한 실시 태양(aspect)으로 상기 증발장치는, 상기 열분해 유화시설에서 배출되는 응축폐수를 일정량 저장하는 저장탱크, 상기 스팀보일러로부터 송입되는 증기로 상기 저장탱크에서 압송되는 응축폐수를 가열하여 증발시키는 증발기 및 상기 저장탱크 내의 응축폐수를 압력 작용으로 일정량씩 상기 증발기로 압송하고, 상기 증발기 내에서 응축폐수의 증발에 의해 생긴 증기를 상기 혼합기로 보내는 펌프를 포함하여 구성될 수 있다.In addition, as a preferred embodiment of the present invention, the evaporator includes a storage tank for storing a certain amount of condensed wastewater discharged from the thermal decomposition and emulsification facility, and the condensed wastewater pumped from the storage tank as steam supplied from the steam boiler. It may include an evaporator for heating and evaporating, and a pump that pumps the condensed wastewater in the storage tank to the evaporator by a certain amount under pressure, and sends steam generated by evaporation of the condensed wastewater in the evaporator to the mixer.

또한, 본 발명의 바람직한 실시 태양(aspect)은, 상기 여과집진기의 전단에서 미세먼지, 유해산성가스, 중금속류 및 입자상 다이옥신류를 흡착 및 흡수 반응시켜 제거하기 위한 반응제(소석회 및 활성탄)를 자동 주입할 수 있다.In addition, in a preferred embodiment of the present invention, a reactive agent (slaked lime and activated carbon) is automatically injected to remove fine dust, harmful acid gases, heavy metals, and particulate dioxins by adsorbing and absorbing them at the front of the bag filter. can do.

또한, 본 발명의 바람직한 실시 태양(aspect)은, 상기 여과집진기의 후단에 배기가스 중의 질소산화물과 같은 대기오염물질을 줄이기 위해 설치된 SCR을 더 포함하여 구성될 수 있다.In addition, a preferred embodiment of the present invention may further include an SCR installed at a rear end of the filter bag to reduce air pollutants such as nitrogen oxides in exhaust gas.

상기와 같은 기술적 과제를 해결하고자 특유한 해결 수단이 기초하고 있는 본 발명의 기술사상 및 실시 예(embodiment)에 따르면, 열분해 유화시설에서 고분자 폐기물을 열분해하는 과정에서 발생한 비응축가스와 응축폐수를 공급받아 별도의 열원 없이 그 열분해 유화시설의 가열로에서 배출되는 연소가스를 이용하여 동시에 효율적으로 처리 및 제거할 수 있다.According to the technical concept and embodiment of the present invention, on which a unique solution is based to solve the above technical problems, non-condensable gas and condensed wastewater generated in the process of pyrolyzing polymer waste in a pyrolysis emulsion facility are supplied and Without a separate heat source, the combustion gas discharged from the heating furnace of the pyrolysis and emulsification facility can be used for efficient treatment and removal at the same time.

즉, 열분해 유화시설의 가열로에서 배출되는 연소가스와 열분해유에서 분리된 응축폐수를 증발시킨 증기를 혼합한 후 직접산화장치로 공급하여 고온에서 이산화탄소와 물로 산화(소각) 처리할 수 있고, 아울러 혼합가스의 산화 과정에서 발생한 폐열을 이용하여 증기를 생산하고, 이를 응축폐수를 증발 처리하기 위한 열원으로 활용할 수 있어, 별도의 열원이나 비용 투입 없이도 비응축가스의 배출을 저감하고 응축폐수를 최대한 제거하여 2차 오염물질의 처리비용을 줄이고 운전 효율을 극대화할 수 있다.That is, after mixing the combustion gas discharged from the heating furnace of the pyrolysis oil facility and the vapor obtained by evaporating the condensed wastewater separated from the pyrolysis oil, it is supplied to the direct oxidation device to be oxidized (incinerated) with carbon dioxide and water at a high temperature. Steam is produced using the waste heat generated in the oxidation process of the mixed gas, and it can be used as a heat source for evaporating the condensate wastewater, reducing the emission of non-condensable gas and maximally removing the condensed wastewater without additional heat sources or input of costs. Thus, the treatment cost of secondary pollutants can be reduced and operational efficiency can be maximized.

여기서 본 발명의 효과들은 이상에서 언급한 효과들로 국한하지 않으며, 언급하지 않은 또 다른 효과들은 청구범위의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 명확하게 이해할 수 있을 것이다.Here, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

도 1은 본 발명의 실시 예에 따른 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템을 개략적으로 나타낸 구성도이다.1 is a block diagram schematically showing a system for reducing air pollutants and treating condensate wastewater generated in a polymer waste pyrolysis and emulsification facility according to an embodiment of the present invention.

이하, 본 발명에 따른 실시 예를 첨부된 도면을 참조하여 보다 구체적으로 설명한다.Hereinafter, embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

이에 앞서, 후술하는 용어들은 본 발명에서의 기능을 고려하여 정의된 것으로서, 이는 본 발명의 기술적 사상에 부합되는 개념과 당해 기술분야에서 통용 또는 통상적으로 인식되는 의미로 해석하여야 함을 명시한다.Prior to this, the terms to be described below are defined in consideration of functions in the present invention, which specifies that they should be interpreted as concepts consistent with the technical spirit of the present invention and meanings commonly used or commonly recognized in the art.

또한, 본 발명과 관련된 공지기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.In addition, if it is determined that a detailed description of a known function or configuration related to the present invention may obscure the gist of the present invention, the detailed description will be omitted.

여기서 첨부된 도면들은 기술의 구성 및 작용에 대한 설명과, 이해의 편의 및 명확성을 위해 일부분을 과장하거나 간략화하여 도시한 것으로, 각 구성요소가 실제의 크기 및 형태와 정확하게 일치하는 것은 아님을 밝힌다.The accompanying drawings are partially exaggerated or simplified for explanation of the configuration and operation of the technology and convenience and clarity of understanding, and it is revealed that each component does not exactly match the actual size and shape.

아울러 본 명세서에서 및/또는 이라는 용어는 복수의 관련된 기재된 항목들의 조합 또는 복수의 관련된 기재된 항목들 중의 어느 항목을 포함하는 의미이며, 어떤 부분이 어떤 구성요소를 포함한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있는 것을 의미한다.In addition, in this specification, the term and / or is meant to include a combination of a plurality of related items described or any item among a plurality of related items described, and when a part includes a certain component, this is particularly the opposite description. As long as there is no , it means that other components can be included more than not excluding other components.

즉, '포함하다' 또는 '구비하다', '가지다' 등의 용어는 본 명세서에서 설시(說示)하는 특징, 개수, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것이 존재함을 의미하는 것이지, 하나 또는 그 이상의 다른 특징들이나 개수, 단계 동작 구성요소, 부분품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 배제하지 않는 것으로 이해해야 한다.That is, terms such as 'include', 'include', or 'have' mean that the features, number, steps, operations, components, parts, or combinations thereof described in this specification exist. However, it should be understood that it does not exclude the possibility of the presence or addition of one or more other features or numbers, step-operating elements, parts, or combinations thereof.

아울러 각 단계들은 문맥상 명백하게 특정 순서를 기재하지 않은 이상 명기된 순서와 다르게 일어날 수 있다. 즉, 각 단계들은 명기된 순서와 동일하게 일어날 수도 있고 실질적으로 동시에 수행될 수도 있으며 반대의 순서대로 수행될 수도 있다.In addition, each step may occur in a different order from the specified order unless a specific order is clearly described in context. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

이외에도 "부" 및 "유닛"의 용어에 대한 의미는 시스템에서 목적하는 적어도 하나의 기능이나 어느 일정한 동작을 처리하는 단위 또는 역할을 하는 모듈 형태를 의미하며, 이는 하드웨어나 소프트웨어 혹은 하드웨어 및 소프트웨어의 결합 등을 통한 수단이나 독립적인 동작을 수행할 수 있는 디바이스 또는 어셈블리 등으로 구현할 수 있다.In addition, the meaning of the terms "unit" and "unit" means a module type that plays a role or unit that processes at least one function or a certain operation for the purpose of the system, which is hardware or software or a combination of hardware and software. It can be implemented as a device or assembly capable of performing an independent operation or a means through the like.

그리고 상단, 하단, 상면, 하면, 또는 상부, 하부, 상측, 하측, 전후, 좌우 등의 용어는 각 구성요소에 있어 상대적인 위치를 구별하기 위해 편의상 사용한 것이다. 예를 들어, 도면상의 위쪽을 상부로 아래쪽을 하부로 명명하거나 지칭하고, 길이 방향을 전후 방향으로, 폭 방향을 좌우 방향으로 명명하거나 지칭할 수 있다.In addition, terms such as top, bottom, top, bottom, or top, bottom, top, bottom, front and rear, left and right are used for convenience to distinguish the relative positions of each component. For example, an upper part in the drawing may be named or referred to as an upper part, a lower part may be named or referred to as a lower part, a longitudinal direction may be named or referred to as a front-back direction, and a width direction may be named or referred to as a left-right direction.

또한, 제1, 제2 등의 용어는 다양한 구성요소들을 설명하는 데 사용될 수 있다. 즉, 제1, 제2 등의 용어는 단지 하나의 구성요소를 다른 구성요소와 구별하는 목적으로 사용될 수 있다. 예를 들어, 제1 구성요소는 본 발명의 보호범위를 벗어나지 않는 한에서 제2 구성요소로 명명할 수 있고, 또 제2 구성요소도 제1 구성요소로 명명할 수도 있다.Also, terms such as first and second may be used to describe various components. That is, terms such as first and second may be used for the purpose of distinguishing only one element from another element. For example, a first component may be referred to as a second component without departing from the scope of the present invention, and the second component may also be referred to as a first component.

도 1을 참조하면, 본 발명의 실시 예에 따른 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템은, 열분해 유화시설(100)에서 고분자 폐기물을 열분해하는 과정에서 발생한 비응측가스와 응축폐수를 상기 열분해 유화시설(100)의 가열로(101)에서 배출되는 연소가스를 이용하여 동시에 처리 및 제거하기 위한 시스템으로, 이를 구성하는 주요 구성요소는 혼합기(10), 열교환기(20), 직접산화장치(30), 스팀보일러(40), 증발장치(50) 및 여과집진기(60)를 포함하고 있다.Referring to FIG. 1, the air pollutant reduction and condensation wastewater treatment system generated in the polymer waste pyrolysis and emulsification facility according to an embodiment of the present invention is a non-condensed gas generated in the process of pyrolyzing polymer waste in the pyrolysis and emulsification facility 100. A system for simultaneously treating and removing condensed wastewater using combustion gas discharged from the heating furnace 101 of the pyrolysis and emulsification facility 100, and the main components constituting the same are a mixer 10 and a heat exchanger 20 ), a direct oxidation device 30, a steam boiler 40, an evaporation device 50 and a dust filter 60 are included.

혼합기(10)는 열분해 유화시설(100)의 가열로(101)에서 배출되는 연소가스와 열분해유에서 분리된 응축폐수를 증발시킨 증기의 혼합을 촉진하여 온도를 균일하게 한다.The mixer 10 facilitates the mixing of the combustion gas discharged from the heating furnace 101 of the pyrolysis oil plant 100 and the vapor obtained by evaporating the condensed wastewater separated from the pyrolysis oil to make the temperature uniform.

즉, 혼합기(10)는 열분해 유화시설(100)의 가열로(101) 및 증발장치(50)와 배관 라인을 통해 각각 연결되어 있다.That is, the mixer 10 is connected to the heating furnace 101 and the evaporation device 50 of the thermal decomposition and emulsification facility 100 through pipe lines, respectively.

그리고 혼합기(10)에서 혼합된 혼합가스는 압입송풍기(FDF: Foced Draft Fan)를 이용해 강제적으로 열교환기(20)로 보내진다.The mixed gas mixed in the mixer 10 is forcibly sent to the heat exchanger 20 using a forced draft fan (FDF).

열교환기(20)는 혼합기(10)로부터 배관 라인을 통해 공급되는 혼합가스의 온도를 높인다.The heat exchanger 20 increases the temperature of the mixed gas supplied from the mixer 10 through the pipe line.

즉, 열교환기(20)에 공급되는 혼합가스는 직접산화장치(30)에서 배출되는 플루가스를 열원으로 하여 열교환이 이루어지고, 열교환기(20)를 통과한 플루가스는 혼합가스와의 열교환에 의해 냉각된 상태로 여과집진기(60)로 보내진다.That is, the mixed gas supplied to the heat exchanger 20 is heat exchanged using the flue gas discharged from the direct oxidation device 30 as a heat source, and the flue gas passing through the heat exchanger 20 is used for heat exchange with the mixed gas It is sent to the bag filter 60 in a cooled state by

직접산화장치(30)는 열분해 유화시설(100)에서 배출되는 비응축가스와 열교환기(20)로부터 혼합가스를 공급받아 버너(31)로 가열하여 고온에서 산화시켜 배출한다.The direct oxidation device 30 receives the mixed gas from the heat exchanger 20 and the non-condensed gas discharged from the thermal decomposition and emulsification facility 100, heats it with the burner 31, oxidizes it at a high temperature, and discharges it.

즉, 직접산화장치(30)는 비응축가스를 고온의 열을 이용하여 완전 산화시켜 배출한다.That is, the direct oxidation device 30 completely oxidizes the non-condensable gas using high-temperature heat and discharges it.

예를 들면, 직접산화장치(30)는 비응축가스를 버너(31)에 의해 연소실로 불어 넣어 연소시키고, 이와 동시에 혼합가스를 750~800℃의 연소실에 0.7~1.5초간 체류시켜 완전 산화시킨 상태로 배출한다.For example, in the direct oxidation device 30, non-condensable gas is blown into the combustion chamber by the burner 31 for combustion, and at the same time, the mixed gas is kept in the combustion chamber at 750 to 800 ° C. for 0.7 to 1.5 seconds to completely oxidize the gas. emit with

그리고 직접산화장치(30)는 열분해 유화시설(100)의 가스응축기(102)와 열교환기(20) 및 스팀보일러(40)와 배관 라인을 통해 각각 연결되어 있다.In addition, the direct oxidation device 30 is connected to the gas condenser 102, the heat exchanger 20, and the steam boiler 40 of the pyrolysis/emulsion facility 100 through pipelines, respectively.

특히 열분해 유화시설(100)의 가스응축기(102)와 직접산화장치(30)를 연결하는 배관 라인 상에는 비응축가스를 강제적으로 직접산화장치(30)의 버너(31)로 압송하기 위한 압입송풍기(FDF: Foced Draft Fan)가 설치되어 있다.In particular, on the piping line connecting the gas condenser 102 of the pyrolysis and emulsification facility 100 and the direct oxidation device 30, a pressurized blower for forcibly feeding non-condensed gas to the burner 31 of the direct oxidation device 30 ( FDF: Forced Draft Fan) is installed.

여기서 직접산화장치(30)는 축열재를 열회수 매체로 사용하는 축열연소산화(Regenerative Thermal Oxidizer) 방식을 채용할 수도 있다.Here, the direct oxidation device 30 may employ a regenerative thermal oxidizer method using a heat storage material as a heat recovery medium.

즉, 축열연소산화(Regenerative Thermal Oxidizer) 방식은 비응측가스가 예열된 세라믹 축열재를 거쳐 800℃ 내외의 고온 분위기에서 분해 및 산화 처리되고, 이 과정에서 발생하는 연소열은 축열재로 회수하여 대기오염을 방지하고 열원으로 사용할 수 있다.In other words, in the Regenerative Thermal Oxidizer method, non-condensed gas is decomposed and oxidized in a high-temperature atmosphere around 800°C through a preheated ceramic heat storage material, and the combustion heat generated in this process is recovered by the heat storage material to pollute the air. and can be used as a heat source.

한편, 열분해 유화시설(100)의 가열로(101)와 직접산화장치(30)를 별도의 배관 라인으로 연결함으로써 직접산화장치(30)에서 혼합가스를 산화시키는 과정에서 발생한 플루가스(폐열)를 고온에 취약한 열분해 유화시설(100)의 가열로(101)로 균일하게 공급할 수도 있다.On the other hand, flue gas (waste heat) generated in the process of oxidizing the mixed gas in the direct oxidation device 30 by connecting the heating furnace 101 of the thermal decomposition and emulsification facility 100 and the direct oxidation device 30 with a separate pipe line. It may be uniformly supplied to the heating furnace 101 of the pyrolysis and emulsification facility 100, which is vulnerable to high temperatures.

스팀보일러(40)는 직접산화장치(30)에서 배출되는 플루가스를 이용해 증기를 생산한다.The steam boiler 40 produces steam using flue gas discharged from the direct oxidation device 30 .

즉, 스팀보일러(40)는 직접산화장치(30)로부터 배관 라인을 통해 공급되는 플루가스(폐열)를 이용해 외부에서 공급되는 급수를 가열하여 스팀을 생산하고, 이를 증발장치(50)로 공급한다.That is, the steam boiler 40 heats water supplied from the outside using flue gas (waste heat) supplied from the direct oxidation device 30 through the pipe line to produce steam, and supplies it to the evaporation device 50 .

그리고 스팀보일러(40)는 배관 라인을 통해 열교환기(20)로 고온의 플루가스를 전달한다.And the steam boiler 40 transfers the high-temperature flue gas to the heat exchanger 20 through the pipe line.

증발장치(50)는 스팀보일러(40)로부터 증기를 송입(送入)해서 열분해 유화시설(100)에서 배출되는 응축폐수를 순간적으로 증발시키고, 그 증발에 의해 생긴 증기를 혼합기(10)로 보낸다.The evaporator 50 injects steam from the steam boiler 40 to instantaneously evaporate the condensed wastewater discharged from the thermal decomposition and emulsification facility 100, and sends the steam generated by the evaporation to the mixer 10 .

즉, 증발장치(50)는 열분해 유화시설(100)의 응축폐수탱크(103) 및 혼합기(10)와 배관 라인으로 각각 연결되어 있다.That is, the evaporator 50 is connected to the condensation wastewater tank 103 and the mixer 10 of the pyrolysis and emulsification facility 100 through a pipe line, respectively.

여기서 증발장치(50)는 열분해 유화시설(100)에서 배출되는 응축폐수를 일정량 저장하기 위한 저장탱크(51)가 구비되어 있다.Here, the evaporator 50 is provided with a storage tank 51 for storing a certain amount of condensed wastewater discharged from the pyrolysis and emulsification facility 100.

그리고 스팀보일러(40)로부터 송입(送入)되는 증기를 이용해 저장탱크(51)에서 압송되는 응축폐수를 가열하여 증발시키는 증발기(52)가 구비되어 있다.In addition, an evaporator 52 for heating and evaporating the condensed wastewater pumped from the storage tank 51 using steam supplied from the steam boiler 40 is provided.

또한, 저장탱크(51) 내의 응축폐수를 압력 작용으로 일정량씩 증발기(52)로 압송하고, 아울러 증발기(52) 내에서 응축폐수의 증발에 의해 생긴 증기를 혼합기(10)로 보내는 펌프(53)가 설치되어 있다.In addition, the pump 53 pumps the condensed wastewater in the storage tank 51 to the evaporator 52 by a certain amount by pressure, and also sends the vapor generated by the evaporation of the condensed wastewater in the evaporator 52 to the mixer 10 is installed.

여과집진기(60)는 스팀보일러(40)를 거쳐 배출되는 플루가스 내 유해 입자 및 오염물질을 분리하여 포집한다.The bag filter 60 separates and collects harmful particles and contaminants in the flue gas discharged through the steam boiler 40.

여기서 여과집진기(60)의 전단에서는 미세먼지, 유해산성가스, 중금속류 및 입자상 다이옥신류를 흡착 및 흡수 반응시켜 제거하기 위한 반응제(소석회 및 활성탄)를 자동 주입할 수 있다.Here, at the front end of the filter bag 60, reactants (slaked lime and activated carbon) may be automatically injected to remove fine dust, harmful acid gases, heavy metals, and particulate dioxins by adsorbing and absorbing them.

한편, 여과집진기(60)의 후단에는 배기가스 중의 질소산화물과 같은 대기오염물질을 줄이기 위한 SCR(70)이 설치될 수 있다.Meanwhile, an SCR 70 for reducing air pollutants such as nitrogen oxides in exhaust gas may be installed at a rear end of the bag filter 60 .

즉, SCR(70)은 배기가스 중 O2에 의해 방해받지 않고 질소산화물(NOx)을 촉매 위에서 선택적으로 암모니아와 반응시켜 N2와 H20로 환원시킬 수 있다.That is, the SCR 70 can reduce nitrogen oxides (NOx) to N2 and H20 by selectively reacting them with ammonia on the catalyst without being disturbed by O2 in the exhaust gas.

이와 같이 구성된 본 발명의 실시 예에 따른 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템은, 열분해 유화시설(100)에서 고분자 폐기물을 열분해하는 과정에서 발생한 비응축가스와 응축폐수를 별도의 열원 없이 그 열분해 유화시설(100)의 가열로(101)에서 배출되는 연소가스를 이용하여 동시에 효율적으로 처리 및 제거할 수 있다.The air pollutant reduction and condensate wastewater treatment system generated in the polymer waste pyrolysis and emulsification facility according to an embodiment of the present invention configured as described above is the non-condensed gas and condensed wastewater generated in the process of pyrolysis of polymer waste in the pyrolysis and emulsification facility 100. can be efficiently treated and removed at the same time using the combustion gas discharged from the heating furnace 101 of the pyrolysis and emulsification facility 100 without a separate heat source.

즉, 열분해 유화시설(100)의 가열로(101)에서 배출되는 연소가스와 열분해유에서 분리된 응축폐수를 증발시킨 증기를 혼합한 후 직접산화장치(30)로 공급함으로써 고온에서 이산화탄소와 물로 산화(소각) 처리할 수 있다.That is, after mixing the combustion gas discharged from the heating furnace 101 of the pyrolysis oil facility 100 and steam obtained by evaporating the condensed wastewater separated from the pyrolysis oil, it is supplied to the direct oxidation device 30 to oxidize carbon dioxide and water at a high temperature. (incineration) can be disposed of.

아울러 직접산화장치(30)에서 혼합가스를 산화시키는 과정에서 발생한 플루가스(폐열)를 이용하여 스팀보일러(40)가 증기를 생산하고, 이를 응축폐수를 증발 처리하기 위한 증발장치(50)의 열원으로 활용할 수 있다.In addition, the steam boiler 40 produces steam using the flue gas (waste heat) generated in the process of oxidizing the mixed gas in the direct oxidation device 30, and the heat source of the evaporation device 50 for evaporating the condensed wastewater can be utilized as

따라서 별도의 열원이나 비용 투입 없이도 비응축가스의 배출을 저감하고 응축폐수를 최대한 제거하여 2차 오염물질의 처리비용을 줄이고 운전 효율을 극대화할 수 있다.Therefore, it is possible to reduce the discharge of non-condensable gas and remove the condensed wastewater as much as possible to reduce the treatment cost of secondary pollutants and maximize operational efficiency without additional heat sources or costs.

더구나 직접산화장치(30)에서 혼합가스를 산화시키는 과정에서 발생한 플루가스(폐열)를 고온에 취약한 열분해 유화시설(100)의 가열로(101)로 균일하게 공급하여 가열용 열원으로 사용할 수 있어, 열분해 유화시설(100)의 사용 수명 연장은 물론 열분해유의 품질을 향상시킬 수 있다.Moreover, the flue gas (waste heat) generated in the process of oxidizing the mixed gas in the direct oxidation device 30 can be uniformly supplied to the heating furnace 101 of the thermal decomposition and emulsification facility 100, which is vulnerable to high temperatures, and used as a heat source for heating, It is possible to extend the service life of the pyrolysis oil facility 100 and improve the quality of the pyrolysis oil.

한편, 본 발명은 상술한 실시 예(embodiment) 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 안에서 예시되지 않은 여러 가지로 다양하게 변형하고 응용할 수 있음은 물론이고 각 구성요소의 치환 및 균등한 타 실시 예로 변경하여 폭넓게 적용할 수도 있음은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명백하다.On the other hand, the present invention is not limited by the above-described embodiments (embodiment) and the accompanying drawings, and can be variously modified and applied in various ways not illustrated within the scope without departing from the technical spirit of the present invention, as well as each It is clear to those of ordinary skill in the art that the components can be widely applied by substitution of components and changes to other equivalent embodiments.

그러므로 본 발명의 기술적 특징을 변형하고 응용하는 것에 관계된 내용은 본 발명의 기술사상 및 범위 내에 포함되는 것으로 해석하여야 할 것이다.Therefore, contents related to the modification and application of the technical features of the present invention should be interpreted as being included within the technical spirit and scope of the present invention.

10: 혼합기 20: 열교환기
30: 직접산화장치 31: 버너
40: 스팀보일러 50: 증발장치
51: 저장탱크 52: 증발기
53: 펌프 60: 여과집진기
70: SCR
100: 열분해 유화시설 101: 가열로
102: 가스응축기 103: 응축폐수탱크
10: mixer 20: heat exchanger
30: direct oxidation device 31: burner
40: steam boiler 50: evaporation device
51: storage tank 52: evaporator
53: pump 60: bag filter
70: SCR
100: thermal decomposition and emulsification facility 101: heating furnace
102: gas condenser 103: condensate wastewater tank

Claims (5)

열분해 유화시설(100)에서 고분자 폐기물을 열분해하는 과정에서 발생한 비응측가스와 응축폐수를 상기 열분해 유화시설(100)의 가열로(101)에서 배출되는 연소가스를 이용하여 동시에 처리 및 제거하기 위한 시스템으로,
상기 열분해 유화시설(100)의 가열로(101)에서 배출되는 연소가스와 열분해유에서 분리된 응축폐수를 증발시킨 증기의 혼합을 촉진하여 온도를 균일하게 하는 혼합기(10);
상기 혼합기(10)로부터 공급되는 혼합가스의 온도를 높이는 열교환기(20);
상기 열분해 유화시설(100)에서 배출되는 비응축가스와 상기 열교환기(20)로부터 혼합가스를 공급받아 버너(31)로 가열하여 고온에서 산화시켜 배출하는 직접산화장치(30);
상기 직접산화장치(30)에서 배출되는 플루가스를 이용해 증기를 생산하는 스팀보일러(40);
상기 스팀보일러(40)로부터 증기를 송입(送入)해서 상기 열분해 유화시설(100)에서 배출되는 응축폐수를 순간적으로 증발시키고, 그 증발에 의해 생긴 증기를 상기 혼합기(10)로 보내는 증발장치(50); 및
상기 스팀보일러(40)를 거쳐 배출되는 플루가스 내 유해 입자 및 오염물질을 분리하여 포집하는 여과집진기(60);
를 포함하는 것을 특징으로 하는 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템.
A system for simultaneously treating and removing non-condensed gas and condensed wastewater generated in the process of pyrolyzing polymer waste in the pyrolysis/emulsion facility 100 using combustion gas discharged from the heating furnace 101 of the pyrolysis/emulsion facility 100 by,
A mixer (10) that promotes mixing of the combustion gas discharged from the heating furnace (101) of the pyrolysis oil facility (100) and steam obtained by evaporating the condensed wastewater separated from the pyrolysis oil to make the temperature uniform;
a heat exchanger (20) for increasing the temperature of the mixed gas supplied from the mixer (10);
A direct oxidation device 30 that receives the non-condensable gas discharged from the thermal decomposition and emulsification facility 100 and the mixed gas from the heat exchanger 20, heats them with a burner 31, oxidizes them at a high temperature, and discharges them;
a steam boiler (40) for producing steam using flue gas discharged from the direct oxidation device (30);
An evaporation device ( 50); and
a dust filter 60 for separating and collecting harmful particles and contaminants in the flue gas discharged through the steam boiler 40;
Air pollutant reduction and condensate wastewater treatment system generated from polymeric waste pyrolysis and emulsification facilities, characterized in that it comprises a.
제1항에 있어서,
상기 혼합기(10)로부터 상기 열교환기(20)에 공급되는 혼합가스는 상기 직접산화장치(30)에서 배출되는 플루가스를 열원으로 하여 열교환이 이루어지고, 상기 열교환기(20)를 통과한 플루가스는 혼합가스와의 열교환에 의해 냉각된 상태로 상기 여과집진기(60)로 보내지는 것을 특징으로 하는 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템.
According to claim 1,
The mixed gas supplied from the mixer 10 to the heat exchanger 20 is heat exchanged using the flue gas discharged from the direct oxidation device 30 as a heat source, and the flue gas passed through the heat exchanger 20 Air pollutant reduction and condensate wastewater treatment system generated in a polymer waste pyrolysis and emulsification facility, characterized in that sent to the filter bag (60) in a cooled state by heat exchange with the mixed gas.
제1항에 있어서,
상기 증발장치(50)는, 상기 열분해 유화시설(100)에서 배출되는 응축폐수를 일정량 저장하는 저장탱크(51);
상기 스팀보일러(40)로부터 송입(送入)되는 증기를 이용해 상기 저장탱크(51)에서 압송되는 응축폐수를 가열하여 증발시키는 증발기(52); 및
상기 저장탱크(51) 내의 응축폐수를 압력 작용으로 일정량씩 상기 증발기(52)로 압송하고, 상기 증발기(52) 내에서 응축폐수의 증발에 의해 생긴 증기를 상기 혼합기(10)로 보내는 펌프(53);
를 포함하는 것을 특징으로 하는 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템.
According to claim 1,
The evaporation device 50 includes a storage tank 51 for storing a certain amount of condensed wastewater discharged from the thermal decomposition and emulsification facility 100;
An evaporator (52) for heating and evaporating the condensed wastewater pumped from the storage tank (51) using the steam supplied from the steam boiler (40); and
A pump 53 that pumps the condensed wastewater in the storage tank 51 to the evaporator 52 by a certain amount under the action of pressure, and sends steam generated by evaporation of the condensed wastewater in the evaporator 52 to the mixer 10 );
Air pollutant reduction and condensate wastewater treatment system generated from polymeric waste pyrolysis and emulsification facilities, characterized in that it comprises a.
제1항에 있어서,
상기 여과집진기(60)의 전단에서 미세먼지, 유해산성가스, 중금속류 및 입자상 다이옥신류를 흡착 및 흡수 반응시켜 제거하기 위한 반응제(소석회 및 활성탄)를 자동 주입하는 것을 특징으로 하는 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템.
According to claim 1,
Polymer waste pyrolysis and emulsification facility characterized by automatically injecting reactants (slaked lime and activated carbon) for adsorption and absorption reaction to remove fine dust, harmful acid gases, heavy metals and particulate dioxins at the front end of the filter bag 60 Air pollutant reduction and condensate wastewater treatment system generated from
제1항에 있어서,
상기 여과집진기(60)의 후단에 배기가스 중의 대기오염물질을 줄이기 위해 설치된 SCR(70);
을 더 포함하는 것을 특징으로 하는 고분자 폐기물 열분해 유화시설에서 발생하는 대기오염물질 저감 및 응축폐수 처리 시스템.
According to claim 1,
An SCR (70) installed at the rear end of the bag filter (60) to reduce air pollutants in exhaust gas;
Air pollutant reduction and condensate wastewater treatment system generated from the polymer waste pyrolysis and emulsification facility, characterized in that it further comprises.
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JP2002265956A (en) * 2001-03-07 2002-09-18 Kazuteru Shinohara Liquefaction apparatus for polymer waste
KR100526017B1 (en) 2002-11-25 2005-11-08 한국에너지기술연구원 Apparatus and method for recovery of non-condensing pyrolysis gas
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KR20200092064A (en) * 2019-01-24 2020-08-03 허옥숙 Regenerating device of waste plastics pyrolyzing oil
KR102262779B1 (en) 2020-12-08 2021-06-11 성안이엔티주식회사 Methods and devices for pyrolysis emulsifying the continuous injection of waste synthetic resins and flammable wastes, as well as continuous discharge of pyrolysis by-products and producing high-quality without the discharge of fine dust and wastewater

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002265956A (en) * 2001-03-07 2002-09-18 Kazuteru Shinohara Liquefaction apparatus for polymer waste
KR100526017B1 (en) 2002-11-25 2005-11-08 한국에너지기술연구원 Apparatus and method for recovery of non-condensing pyrolysis gas
KR20160090094A (en) * 2015-01-21 2016-07-29 태산엔지니어링(주) Recycling System for Recycling the Energy using the Waste
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