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KR102243880B1 - Low-temperature combustion treatment of exhaust gas after tenter and waste heat recycling process - Google Patents

Low-temperature combustion treatment of exhaust gas after tenter and waste heat recycling process Download PDF

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Publication number
KR102243880B1
KR102243880B1 KR1020210027362A KR20210027362A KR102243880B1 KR 102243880 B1 KR102243880 B1 KR 102243880B1 KR 1020210027362 A KR1020210027362 A KR 1020210027362A KR 20210027362 A KR20210027362 A KR 20210027362A KR 102243880 B1 KR102243880 B1 KR 102243880B1
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KR
South Korea
Prior art keywords
exhaust gas
heat exchanger
heat
tenter
supplied
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KR1020210027362A
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Korean (ko)
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조윤현
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주식회사 지이테크
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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
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0065—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04—Cleaning filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
    • B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)

Abstract

The present invention relates to a low-temperature combustion treatment and waste heat recycling process of exhaust gas at the rear end of a tenter, comprising: a cyclone connected to the rear end of the tenter and supplied with exhaust gas containing pollutants discharged from the rear end of the tenter; a first heat exchanger connected to the cyclone to receive the exhaust gas and to increase the temperature of the exhaust gas; a bag filter connected to the first heat exchanger to receive the exhaust gas and to collect the pollutants contained in the exhaust gas; a catalytic oxidation tower connected to the bag filter to receive the exhaust gas and burning the exhaust gas by applying heat to the exhaust gas; a second heat exchanger receiving the exhaust gas which has passed through the cyclone and supplied to the first heat exchanger again after passing through the inside of the catalytic oxidation tower, and the heat-exchanged with the exhaust gas, and at the same time, supplying preheated outside air to a tenter facility by exchanging heat of the external air and the exhaust gas; and a blower connected to the second heat exchanger to receive the exhaust gas which has passed through the second heat exchanger, and to discharge the exhaust gas from which particulate and gaseous pollutants have been removed through an exhaust tower.

Description

텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정{Low-temperature combustion treatment of exhaust gas after tenter and waste heat recycling process}Low-temperature combustion treatment of exhaust gas after tenter and waste heat recycling process}

본 발명은 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정에 관한 것으로, 더욱 상세하게는 텐터 후단에서 배출되는 배기가스 내에 포함된 입자상 오염물, 가스상 오염물(VOCs, THC)등의 대기오염 및 악취를 유발하는 오염물을 다단으로 연결 구비되는 사이클론, 백필터, 촉매산화타워를 이용하여 포집 및 열분해하여 제거함과 아울러 제2열교환기로 인해 배기가스와 열교환된 외부공기가 텐터시설로 공급되어 폐열이 회수 및 재활용됨으로 에너지의 절감 또한 이루어지는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정에 관한 것이다.The present invention relates to a low-temperature combustion treatment of exhaust gas after a tenter and a waste heat recycling process, and more particularly, air pollution and odors such as particulate pollutants and gaseous pollutants (VOCs, THC) contained in the exhaust gas discharged from the rear end of the tenter. The pollutants that cause pollutants are collected and thermally decomposed using a cyclone, bag filter, and catalytic oxidation tower that are connected in multiple stages, and external air that has been heat-exchanged with exhaust gas is supplied to the tenter facility by the second heat exchanger to recover and recycle waste heat. Therefore, it relates to a low-temperature combustion treatment of exhaust gas after the tenter and waste heat recycling process which also saves energy.

일반적으로 염색업종의 산업시설에 있어 다림질기계로 사용되는 텐터(TENTER)는 일명 폭출기(幅出機)라고도 하는 장치로서, 염색 다듬질 공정에서 천의 폭을 일정하게 하기 위하여 직물의 양쪽 귀를 핀 또는 클립으로 쥐고 천을 증기 속을 달리게 하는 장치이다.In general, a tenter, which is used as an ironing machine in an industrial facility in the dyeing industry, is a device called a blower, and pins both ears of the fabric to make the width of the fabric constant in the dyeing and finishing process. Or, it's a device that holds a clip and lets the cloth run through the steam.

위와 같이 천의 폭을 일정하게 하기 위하여 염색 다듬질 공정에서 다림질기계로 사용되는 텐터는 대기환경보전법에 의거 대기오염물질 배출시설 및 생활악취 규제대상시설로 규정되어 대기오염방지시설을 필히 갖추어야 한다.As described above, tenters used as ironing machines in the dyeing and finishing process in order to make the width of the fabric constant are regulated as air pollutant emission facilities and living odor control facilities in accordance with the Air Environment Conservation Act, and air pollution prevention facilities must be provided.

이러한 텐터의 대기오염방지시설로는 초기에 입상활성탄 흡착탑만을 설치한 경우가 있었으나, 이는 온도에 따른 활성탄의 흡착능력을 고려하지 않은 결과라 할 수 있으며, 고유한 활성탄의 성질상 활성탄에 물질이 정상적으로 흡착될 수 있는 온도는 40~50℃ 미만으로써, 텐터에서 배출되는 배기가스의 평균 온도인 120~170℃로 배출되는 배기가스에서는 활성탄에 오염물질이 흡착되지 않을 뿐만 아니라 고온의 배기가스로 인해 활성탄이 발화되는 등의 위험성이 있는 것이다.There were cases in which only granular activated carbon adsorption tower was installed as an air pollution prevention facility of such tenter, but this is the result of not considering the adsorption capacity of activated carbon according to temperature. The temperature that can be adsorbed is less than 40~50℃. In the exhaust gas discharged at 120~170℃, which is the average temperature of the exhaust gas discharged from the tenter, pollutants are not adsorbed to the activated carbon and activated carbon due to the high temperature exhaust gas. There is a danger of being ignited.

또한, 상기와 같은 이유뿐만 아니더라도 고온상태로 배출되는 텐터의 배출가스 중 악취유발물질 등을 온도저하 없이 활성탄만으로 제거한다는 것은 매우 곤란하다는 것을 알 수 있는 것이다.In addition, it can be seen that it is very difficult to remove odor-causing substances from the exhaust gas of the tenter discharged in a high temperature state with only activated carbon without lowering the temperature even for the same reason as described above.

한편, 상기와 같은 초기의 텐터 대기오염방지시설을 개량한 기술로 상기 입상활성탄 흡착탑에 배기가스의 온도 저하를 위하여 습식 세정시설을 추가한 기술이 개발되어 있으나, 이러한 설비는 활성탄의 재생 및 교체주기가 짧음과 아울러 재생 및 교체작업의 어려움과 비용 문제로 인해 활성탄의 교체 없이 2년 이상 그대로 가동하는 경우가 허다하였으며, 근래에는 습식세정과 함께 흡착탑이 일체로 형성되는 일체 타워형 방지시설을 설치하는 추세이다.On the other hand, as a technology that improved the initial tenter air pollution prevention facility as described above, a technology in which a wet cleaning facility was added to the granular activated carbon adsorption tower to lower the temperature of the exhaust gas has been developed. In addition, due to the difficulty of regeneration and replacement work and cost problems, there are many cases of operating as it is for more than two years without replacement of activated carbon, and in recent years, there is a trend of installing an integrated tower type prevention facility in which an adsorption tower is integrally formed with wet cleaning. to be.

이때, 상기 일체식의 텐터 배기가스처리시설은 설치비가 저렴하고 외관이 좋은 장점을 지니고 있으나 수분과 고점성 오염물질인 오일미스트 및 낙모와 기모와 같은 이물질이 활성탄에 부착되어 폐색이 발생하는 경우가 빈번함과 아울러 오일미스트는 세정 및 흡착시설 외에 덕트에도 부착되어 오염을 일으키고 간혹 화재의 원인이 되는 등 제반 문제점이 있는 것이었다.At this time, the all-in-one tenter exhaust gas treatment facility has advantages of low installation cost and good appearance, but there are cases where moisture and high viscosity pollutants such as oil mist and foreign substances such as falling hair and brushing are attached to the activated carbon, causing clogging. In addition to being frequent, oil mist was attached to ducts in addition to cleaning and adsorption facilities, causing pollution and occasionally causing fire.

상기와 같은 선례에서 보듯 많은 자금을 투자하여 환경오염방지시설을 해당 업체에 설치한 후 초기에만 가동하는 형식을 취하다가 기계적, 설비적 또는 관리적인 문제로 사장되는 오염방지시설이 대부분이었고, 설치된 후 효율적이고 지속적인 관리가 이루어지지 않아 그 실용성에 많은 문제점이 있는 것이었다.As shown in the precedent above, most of the pollution prevention facilities were put into operation only initially after investing a large amount of money to install the environmental pollution prevention facilities in the relevant company, and then died due to mechanical, facility, or management problems. There were many problems in its practicality because efficient and continuous management was not performed.

따라서, 상기와 같은 종래의 문제점을 해결한 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정이 요구되고 있는 실정이다.Accordingly, there is a demand for a low-temperature combustion treatment of exhaust gas after a tenter and a waste heat recycling process that solves the conventional problems as described above.

등록특허공보 제10-1489190호Registered Patent Publication No. 10-1489190

본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위하여 발명된 것으로서, 종래의 텐터에서 발생되는 배기가스를 처리하기 위한 설비에서 수분과 고점성 오염물질인 오일미스트 및 낙모와 기모와 같은 이물질이 활성탄에 부착되어 폐색이 발생하는 경우가 빈번함과 아울러 오일미스트는 세정 및 흡착시설 외에 덕트에도 부착되어 오염을 일으키고 간혹 화재의 원인이 되는 등 제반 문제점이 있는 것을 텐터 후단에서 배출되는 배기가스 내에 포함된 입자상 오염물, 가스상 오염물(VOCs, THC)등의 대기오염 및 악취를 유발하는 오염물을 다단으로 연결 구비되는 사이클론, 백필터, 촉매산화타워를 이용하여 포집 및 열분해하여 제거함과 아울러 제2열교환기로 인해 배기가스와 열교환된 외부공기가 텐터시설로 공급되어 폐열이 회수 및 재활용됨으로 에너지의 절감 또한 이루어지도록 하는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정을 제공하는데 그 목적이 있다.The present invention has been invented to solve the problems of the prior art as described above, and in a facility for treating exhaust gas generated from a conventional tenter, moisture and high viscosity pollutants such as oil mist and foreign substances such as falling hair and brushing are activated carbon. In addition to the frequent occurrence of clogging due to adhering to the cleaning and adsorption facilities, oil mist is also attached to the ducts, causing pollution, and sometimes causes fire, and is contained in the exhaust gas discharged from the rear end of the tenter. Air pollution and odor-causing pollutants such as particulate pollutants and gaseous pollutants (VOCs, THC) are collected and removed by thermal decomposition using a cyclone, bag filter, and catalytic oxidation tower connected in multiple stages, and exhausted by the second heat exchanger. It is an object of the present invention to provide a low-temperature combustion treatment and waste heat recycling process of exhaust gas after a tenter in which external air heat-exchanged with gas is supplied to a tenter facility to recover and recycle waste heat, thereby reducing energy.

상기와 같은 목적을 실현하기 위하여, 본 발명은 텐터 후단에 연결되어 텐터 후단에서 배출되는 오염물을 포함하는 배기가스를 공급받는 사이클론과, 사이클론과 연결되어 배기가스를 공급받음과 아울러 배기가스의 온도를 높이도록 구비되는 제1열교환기와, 제1열교환기와 연결되어 배기가스를 공급받음과 아울러 배기가스에 포함된 오염물을 포집하는 백필터와, 백필터와 연결되어 배기가스를 공급받음과 아울러 배기가스에 열을 가하여 배기가스를 연소하는 촉매산화타워와, 촉매산화타워의 내측을 지난 후 재차 제1열교환기로 공급되어 사이클론을 지나온 배기가스와 열교환된 배기가스를 공급받음과 아울러 외부공기를 배기가스와 열교환하여 예열된 외부공기를 텐터시설로 공급하는 제2열교환기와, 제2열교환기와 연결되어 제2열교환기를 지나온 배기가스를 공급받음과 아울러 입자상 오염물, 가스상 오염물이 제거된 배기가스를 배출탑을 통해 외부로 배출하도록 구비되는 송풍기로 이루어지는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정에 있어서, 상기 텐터 후단에서 배출되는 120~180℃의 배기가스가 사이클론의 내측으로 공급됨과 아울러 사이클론의 내측에서는 배기가스에 포함된 입자상 오염물, 가스상 오염물을 1차로 포집하는 제1단계와, 상기 사이클론을 지나며 배기가스에 포함된 입자상 오염물, 가스상 오염물이 1차로 포집 및 제거된 배기가스를 제1열교환기의 내측으로 공급받으며, 제1열교환기 상에서 열교환을 통해 사이클론에서 공급된 배기가스의 온도를 200~280℃로 승온하는 제2단계와, 상기 제1열교환기를 지나며 승온된 배기가스를 백필터의 내측으로 공급받으며, 배기가스에 포함된 입자상 오염물, 가스상 오염물을 2차로 포집 및 제거하는 제3단계와, 상기 백필터를 지나온 배기가스를 촉매산화타워의 내측으로 공급받으며, 촉매산화타워 상에 구비되는 히터로 촉매산화타워 내측에 공급된 배기가스에 열을 가하여 배기가스에 포함된 입자상 오염물, 가스상 오염물을 저온 연소하여 3차로 제거함과 아울러 배기가스의 온도를 320~380℃로 승온하는 제4단계와, 상기 촉매산화타워를 지나온 배기가스를 제1열교환기로 공급함과 아울러 사이클론을 지나 제1열교환기로 공급되는 배기가스와 열교환하여 촉매산화타워를 지나온 배기가스를 180~250℃로 감온하는 제5단계와, 상기 촉매산화타워 및 제1열교환기를 지나온 180~250℃의 배기가스를 제2열교환기로 공급함과 아울러 제2열교환기로 공급된 외부공기와 열교환하며, 외부공기의 온도를 120~160℃로 승온하는 제6단계와, 상기 제2열교환기를 지나온 입자상 오염물, 가스상 오염물이 제거된 배기가스를 송풍기를 거쳐 배출탑을 통해 외부로 배출함과 아울러 배기가스와 열교환되어 예열된 외부공기를 텐터시설로 공급하는 제7단계를 포함하여 이루어지는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정을 제공한다.In order to achieve the above object, the present invention provides a cyclone connected to a rear end of a tenter to receive exhaust gas including pollutants discharged from the rear end of a tenter, and a cyclone connected to the cyclone to receive exhaust gas and to control the temperature of the exhaust gas. A first heat exchanger that is provided so as to be raised, a bag filter that is connected to the first heat exchanger to receive exhaust gas and collects pollutants contained in the exhaust gas, and a bag filter that is connected to the bag filter to receive exhaust gas and to exhaust gas. After passing through the inside of the catalytic oxidation tower and the catalytic oxidation tower by applying heat, it is supplied to the first heat exchanger again to receive the exhaust gas exchanged with the exhaust gas that has passed through the cyclone and exchanges external air with the exhaust gas. Thus, the second heat exchanger that supplies the preheated external air to the tenter facility, and the exhaust gas that has passed through the second heat exchanger connected to the second heat exchanger is supplied, and the exhaust gas from which particulate and gaseous pollutants have been removed is sent to the outside through the discharge tower. In the low-temperature combustion treatment and waste heat recycling process of exhaust gas at the rear end of the tenter comprising a blower provided to be discharged to the inside of the tenter, the exhaust gas of 120 to 180°C discharged from the rear end of the tenter is supplied to the inside of the cyclone and the exhaust gas inside the cyclone The first step of collecting particulate pollutants and gaseous pollutants contained in the first step, and the exhaust gas from which particulate pollutants and gaseous pollutants contained in exhaust gas passing through the cyclone are first collected and removed is supplied to the inside of the first heat exchanger. A second step of raising the temperature of the exhaust gas supplied from the cyclone to 200 to 280°C through heat exchange on the first heat exchanger, and receiving the exhaust gas heated by passing through the first heat exchanger into the inside of the bag filter, The third step of collecting and removing particulate pollutants and gaseous pollutants contained in the exhaust gas secondly, and the exhaust gas that has passed through the bag filter is supplied to the inside of the catalytic oxidation tower, and catalytic oxidation with a heater provided on the catalytic oxidation tower By applying heat to the exhaust gas supplied to the inside of the tower, the particulate pollutants and gaseous pollutants contained in the exhaust gas are burned at a low temperature to remove the third stage, and the temperature of the exhaust gas is reduced to 320~3. The fourth step of raising the temperature to 80°C, supplying the exhaust gas that has passed through the catalytic oxidation tower to the first heat exchanger, and exchanging heat with the exhaust gas supplied to the first heat exchanger through the cyclone, so that the exhaust gas passing through the catalytic oxidation tower is 180~ In the fifth step of reducing the temperature to 250℃, the exhaust gas of 180~250℃ that has passed through the catalytic oxidation tower and the first heat exchanger is supplied to the second heat exchanger, and heat exchanged with the external air supplied to the second heat exchanger. The sixth step of raising the temperature to 120 ~ 160 ℃, and the exhaust gas from which the particulate pollutants and gaseous pollutants have passed through the second heat exchanger are discharged to the outside through the exhaust tower through a blower, and heat exchanged with the exhaust gas to preheat. It provides a low-temperature combustion treatment of exhaust gas after the tenter and a waste heat recycling process comprising a seventh step of supplying the obtained external air to the tenter facility.

이와 같이 이루어지는 본 발명에 의한 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정은 텐터 후단에서 배출되는 배기가스 내에 포함된 입자상 오염물, 가스상 오염물(VOCs, THC)등의 대기오염 및 악취를 유발하는 오염물을 다단으로 연결 구비되는 사이클론, 백필터, 촉매산화타워를 이용하여 포집 및 열분해하여 제거함과 아울러 제2열교환기로 인해 배기가스와 열교환된 외부공기가 텐터시설로 공급되어 폐열이 회수 및 재활용됨으로 에너지의 절감 또한 이루어지는 이점이 있는 것이다.The low-temperature combustion treatment and waste heat recycling process of the exhaust gas after the tenter according to the present invention made as described above is a pollutant that causes air pollution and odor such as particulate pollutants and gaseous pollutants (VOCs, THC) contained in the exhaust gas discharged from the rear end of the tenter. By using a cyclone, bag filter, and catalytic oxidation tower, which are connected in multiple stages, the waste heat is recovered and recycled by collecting and thermally decomposing and removing it, and external air that has been heat-exchanged with the exhaust gas by the second heat exchanger is supplied to the tenter facility. There is also an advantage in savings.

도 1은 본 발명의 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정을 설명하기 위한 개략도,
도 2는 본 발명의 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정의 블럭도이다.1 is a schematic diagram for explaining a low-temperature combustion treatment and waste heat recycling process of exhaust gas after a tenter of the present invention;
Figure 2 is a block diagram of a low-temperature combustion treatment and waste heat recycling process of the exhaust gas after the tenter of the present invention.

이하 본 발명의 실시를 위한 구체적인 내용을 첨부한 도면을 참조하여 더욱 상세하게 설명한다.It will be described in more detail below with reference to the accompanying drawings specific details for the implementation of the present invention.

도 1 내지 도 2를 참조하여 보면 본 발명에 의한 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정은, 텐터 후단에 연결되어 텐터 후단에서 배출되는 오염물을 포함하는 배기가스를 공급받는 사이클론(10)과, 사이클론(10)과 연결되어 배기가스를 공급받음과 아울러 배기가스의 온도를 높이도록 구비되는 제1열교환기(12)와, 제1열교환기(12)와 연결되어 배기가스를 공급받음과 아울러 배기가스에 포함된 오염물을 포집하는 백필터(14)와, 백필터(14)와 연결되어 배기가스를 공급받음과 아울러 배기가스에 열을 가하여 배기가스를 연소하는 촉매산화타워(16)와, 촉매산화타워(16)의 내측을 지난 후 재차 제1열교환기(12)로 공급되어 사이클론(10)을 지나온 배기가스와 열교환된 배기가스를 공급받음과 아울러 외부공기를 배기가스와 열교환하여 예열된 외부공기를 텐터시설로 공급하는 제2열교환기(20)와, 제2열교환기(20)와 연결되어 제2열교환기(20)를 지나온 배기가스를 공급받음과 아울러 입자상 오염물, 가스상 오염물이 제거된 배기가스를 배출탑(22)을 통해 외부로 배출하도록 구비되는 송풍기(24)로 이루어지는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정에 있어서, 상기 텐터 후단에서 배출되는 120~180℃의 배기가스가 사이클론(10)의 내측으로 공급됨과 아울러 사이클론(10)의 내측에서는 배기가스에 포함된 입자상 오염물, 가스상 오염물을 1차로 포집하는 제1단계와, 상기 사이클론(10)을 지나며 배기가스에 포함된 입자상 오염물, 가스상 오염물이 1차로 포집 및 제거된 배기가스를 제1열교환기(12)의 내측으로 공급받으며, 제1열교환기(12) 상에서 열교환을 통해 사이클론(10)에서 공급된 배기가스의 온도를 200~280℃로 승온하는 제2단계와, 상기 제1열교환기(12)를 지나며 승온된 배기가스를 백필터(14)의 내측으로 공급받으며, 배기가스에 포함된 입자상 오염물, 가스상 오염물을 2차로 포집 및 제거하는 제3단계와, 상기 백필터(14)를 지나온 배기가스를 촉매산화타워(16)의 내측으로 공급받으며, 촉매산화타워(16) 상에 구비되는 히터(18)로 촉매산화타워(16) 내측에 공급된 배기가스에 열을 가하여 배기가스에 포함된 입자상 오염물, 가스상 오염물을 저온 연소하여 3차로 제거함과 아울러 배기가스의 온도를 320~380℃로 승온하는 제4단계와, 상기 촉매산화타워(16)를 지나온 배기가스를 제1열교환기(12)로 공급함과 아울러 사이클론(10)을 지나 제1열교환기(12)로 공급되는 배기가스와 열교환하여 촉매산화타워(16)를 지나온 배기가스를 180~250℃로 감온하는 제5단계와, 상기 촉매산화타워(16) 및 제1열교환기(12)를 지나온 180~250℃의 배기가스를 제2열교환기(20)로 공급함과 아울러 제2열교환기(20)로 공급된 외부공기와 열교환하며, 외부공기의 온도를 120~160℃로 승온하는 제6단계와, 상기 제2열교환기(20)를 지나온 입자상 오염물, 가스상 오염물이 제거된 배기가스를 송풍기(24)를 거쳐 배출탑(22)을 통해 외부로 배출함과 아울러 배기가스와 열교환되어 예열된 외부공기를 텐터시설로 공급하는 제7단계로 이루어진다.Referring to Figures 1 to 2, the low-temperature combustion treatment and waste heat recycling process of exhaust gas after the tenter according to the present invention is connected to the rear end of the tenter to receive exhaust gas including pollutants discharged from the rear end of the tenter. And, a first heat exchanger 12 connected to the cyclone 10 and provided to increase the temperature of the exhaust gas while receiving the exhaust gas, and the first heat exchanger 12 connected to the first heat exchanger 12 to receive the exhaust gas. In addition, a bag filter 14 for collecting pollutants contained in exhaust gas, and a catalytic oxidation tower 16 connected to the bag filter 14 to receive exhaust gas and to burn exhaust gas by applying heat to the exhaust gas. , After passing through the inside of the catalytic oxidation tower 16, it is supplied to the first heat exchanger 12 again to receive the exhaust gas that has been heat-exchanged with the exhaust gas that has passed through the cyclone 10, and is preheated by exchanging external air with the exhaust gas. The second heat exchanger (20) that supplies the outside air to the tenter facility and the second heat exchanger (20) is connected to receive the exhaust gas that has passed through the second heat exchanger (20), and particulate contaminants and gaseous contaminants are In the low-temperature combustion treatment and waste heat recycling process of exhaust gas at the rear end of the tenter consisting of a blower 24 provided to discharge the removed exhaust gas to the outside through the discharge tower 22, 120 to 180°C discharged from the rear end of the tenter While the exhaust gas is supplied to the inside of the cyclone 10, the inside of the cyclone 10 includes a first step of first collecting particulate pollutants and gaseous pollutants contained in the exhaust gas, and the exhaust gas passing through the cyclone 10 Exhaust gas from which particulate pollutants and gaseous pollutants are first collected and removed is supplied to the inside of the first heat exchanger 12, and exhaust gas supplied from the cyclone 10 through heat exchange on the first heat exchanger 12. The second step of raising the temperature of 200 ~ 280 ℃, and the exhaust gas heated by passing through the first heat exchanger (12) is supplied to the inside of the bag filter (14), particulate pollutants contained in the exhaust gas, gaseous phase The third step of collecting and removing contaminants secondarily, and exhaust gas passing through the bag filter 14 Is supplied to the inside of the catalytic oxidation tower 16, and heat is applied to the exhaust gas supplied to the inside of the catalytic oxidation tower 16 with a heater 18 provided on the catalytic oxidation tower 16, A fourth step of removing pollutants and gaseous pollutants by low-temperature combustion and raising the temperature of the exhaust gas to 320 to 380°C, and the exhaust gas passing through the catalytic oxidation tower 16 to the first heat exchanger 12. A fifth step of reducing the temperature of the exhaust gas passing through the catalytic oxidation tower 16 to 180 to 250°C by exchanging heat with the exhaust gas supplied to the first heat exchanger 12 through the cyclone 10 while supplying it, and the catalytic oxidation The exhaust gas of 180 to 250°C that has passed through the tower 16 and the first heat exchanger 12 is supplied to the second heat exchanger 20 and exchanges heat with the external air supplied to the second heat exchanger 20. The sixth step of raising the temperature of the air to 120 ~ 160 ℃, and the exhaust gas from which the particulate pollutants and gaseous pollutants have passed through the second heat exchanger 20 are removed through the blower 24 and the exhaust tower 22. It consists of a seventh step of discharging to the outside and supplying the preheated external air by heat exchange with the exhaust gas to the tenter facility.

먼저, 텐터 후단에 연결되어 텐터 후단에서 배출되는 오염물을 포함하는 배기가스를 공급받는 사이클론(10)과, 사이클론(10)과 연결되어 배기가스를 공급받음과 아울러 배기가스의 온도를 높이도록 구비되는 제1열교환기(12)와, 제1열교환기(12)와 연결되어 배기가스를 공급받음과 아울러 배기가스에 포함된 오염물을 포집하는 백필터(14)와, 백필터(14)와 연결되어 배기가스를 공급받음과 아울러 배기가스에 열을 가하여 배기가스를 연소하는 촉매산화타워(16)와, 촉매산화타워(16)의 내측을 지난 후 재차 제1열교환기(12)로 공급되어 사이클론(10)을 지나온 배기가스와 열교환된 배기가스를 공급받음과 아울러 외부공기를 배기가스와 열교환하여 예열된 외부공기를 텐터시설로 공급하는 제2열교환기(20)와, 제2열교환기(20)와 연결되어 제2열교환기(20)를 지나온 배기가스를 공급받음과 아울러 입자상 오염물, 가스상 오염물이 제거된 배기가스를 배출탑(22)을 통해 외부로 배출하도록 구비되는 송풍기(24)로 이루어지는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정에 있어서, 상기 텐터 후단에서 배출되는 120~180℃의 배기가스가 사이클론(10)의 내측으로 공급됨과 아울러 사이클론(10)의 내측에서는 배기가스에 포함된 입자상 오염물, 가스상 오염물을 1차로 포집한다.(S10단계)First, a cyclone 10 connected to the rear end of the tenter to receive exhaust gas including contaminants discharged from the rear end of the tenter, and a cyclone 10 connected to the cyclone 10 to receive the exhaust gas and to increase the temperature of the exhaust gas. The first heat exchanger 12 and the bag filter 14 are connected to the first heat exchanger 12 to receive exhaust gas and collect pollutants contained in the exhaust gas, and are connected to the bag filter 14. The catalytic oxidation tower 16 that burns the exhaust gas by applying heat to the exhaust gas while receiving the exhaust gas, and after passing through the inside of the catalytic oxidation tower 16, are supplied to the first heat exchanger 12 again to be supplied to the cyclone ( 10) A second heat exchanger (20) and a second heat exchanger (20) that receive the exhaust gas that has been heat-exchanged with the exhaust gas that has passed through, and to supply the preheated external air to the tenter facility by exchanging external air with the exhaust gas. A tenter consisting of a blower 24 connected to the second heat exchanger 20 to receive the exhaust gas that has passed through the second heat exchanger 20 and to discharge the exhaust gas from which particulate and gaseous pollutants have been removed to the outside through the discharge tower 22 In the low-temperature combustion treatment and waste heat recycling process of the rear exhaust gas, the exhaust gas of 120 to 180°C discharged from the rear end of the tenter is supplied to the inside of the cyclone 10 and contained in the exhaust gas from the inside of the cyclone 10 Particulate pollutants and gaseous pollutants are collected first (step S10).

이때, 상기 사이클론(10)은 한 개 또는 다수개 구비되어 사용되는 것이며, 텐터 후단에서 배출되는 배기가스에 포함되는 오염물의 종류 및 양에 따라 사이클론(10)이 다수개 구비되어 사용될 수 있음과 아울러 사이클론(10)이 다수개 구비되어 사용될 시에는 각각의 사이클론(10)이 상호 직렬로 연결 구비되어 사용되는 것이다.At this time, one or more cyclones 10 are provided and used, and a plurality of cyclones 10 may be provided and used depending on the type and amount of contaminants included in the exhaust gas discharged from the rear end of the tenter. When a plurality of cyclones 10 are provided and used, each of the cyclones 10 is connected in series and used.

상기 사이클론(10)을 지나며 배기가스에 포함된 입자상 오염물, 가스상 오염물이 1차로 포집 및 제거된 배기가스를 제1열교환기(12)의 내측으로 공급받으며, 제1열교환기(12) 상에서 열교환을 통해 사이클론(10)에서 공급된 배기가스의 온도를 200~280℃로 승온한다.(S20단계)The exhaust gas from which the particulate pollutants and gaseous pollutants contained in the exhaust gas while passing through the cyclone 10 are first collected and removed is supplied to the inside of the first heat exchanger 12, and heat exchange is performed on the first heat exchanger 12. The temperature of the exhaust gas supplied from the cyclone 10 is raised to 200 to 280°C through (S20 step).

이때, 상기 제1열교환기(12) 상에는 제1열교환기(12) 내측을 세정하기 위해 외부로부터 후술되는 세정수(26)를 공급받아 제1열교환기(12)의 내측으로 미립화하여 분사하는 세정수단(28)이 구비되어 사용될 수 있는 것이며, 이로 인해 제1열교환기(12)의 내측은 작업자의 제어에 따라 수시로 세척됨으로 배기가스의 흐름이 원활할 뿐만 아니라 오염물로 인한 화재의 위험 또한 저감되는 것이다.At this time, on the first heat exchanger 12, washing water 26, which will be described later, is supplied from the outside to clean the inside of the first heat exchanger 12 and atomized and sprayed into the inside of the first heat exchanger 12. Means 28 is provided and can be used, and therefore, the inside of the first heat exchanger 12 is cleaned from time to time under the control of the operator, so that not only the flow of exhaust gas is smooth, but also the risk of fire due to contaminants is reduced. will be.

한편, 상기 세정수(26)은 워터, 가성소다, 탄산나트륨, 황산으로 이루어진 군에서 2종 이상이 혼합 형성되어 이루어지는 것이며, 세정수(26)은 작업자의 판단에 의해 폐기될 때까지 순환 사용됨으로 세정액(26)의 낭비 및 자원의 절약이 가능한 것이다.On the other hand, the washing water 26 is formed by mixing two or more types from the group consisting of water, caustic soda, sodium carbonate, and sulfuric acid, and the washing water 26 is circulated and used until it is discarded at the judgment of the operator. (26) It is possible to save waste and resources.

또한, 상기 제1열교환기(12) 내측에서 사이클론(10)에서 공급받은 배기가스의 온도가 200~280℃로 승온되는 것은 도 1에서와 같이 후술되는 촉매산화타워(16)를 통과한 배기가스와의 열교환을 통해 승온되는 것으로써, 배기가스의 폐열을 사용함으로 에너지의 절감이 확보되는 것이다.In addition, the temperature of the exhaust gas supplied from the cyclone 10 inside the first heat exchanger 12 is increased to 200 to 280°C. The exhaust gas passing through the catalytic oxidation tower 16 to be described later as in FIG. 1 By heating up through heat exchange with and, energy saving is ensured by using waste heat of exhaust gas.

상기 제1열교환기(12)를 지나며 승온된 배기가스를 백필터(14)의 내측으로 공급받으며, 배기가스에 포함된 입자상 오염물, 가스상 오염물을 2차로 포집 및 제거한다.(S30단계)The exhaust gas heated by passing through the first heat exchanger 12 is supplied to the inside of the bag filter 14, and particulate pollutants and gaseous pollutants contained in the exhaust gas are secondarily collected and removed (step S30).

이때, 상기 백필터(14)의 내측에는 외부로부터 세정수(26)를 공급받아 미립화하여 분사하는 세정수단(28)이 구비되는 것이며, 이로 인해 배기가스에 포함된 입자상 오염물, 가스상 오염물의 포집 및 제거가 용이할 뿐만 아니라 화재의 발생 또한 미연에 방지되는 것이다.At this time, the inside of the bag filter 14 is provided with a washing means 28 that receives the washing water 26 from the outside and atomizes and sprays it, thereby collecting particulate pollutants and gaseous pollutants included in the exhaust gas and Not only is it easy to remove, but also the occurrence of fire is prevented.

한편, 상기 세정수(26)는 배기가스에 포함된 입자상 오염물, 가스상 오염물을 용이하게 포집하기 위해 워터, 가성소다, 탄산나트륨, 황산으로 이루어진 군에서 어느 1종 또는 2종 이상이 혼합 형성되어 이루어지는 것이다.On the other hand, the washing water 26 is formed by mixing any one or two or more from the group consisting of water, caustic soda, sodium carbonate, and sulfuric acid in order to easily collect particulate pollutants and gaseous pollutants contained in exhaust gas. .

상기 백필터(14)를 지나온 배기가스를 촉매산화타워(16)의 내측으로 공급받으며, 촉매산화타워(16) 상에 구비되는 히터(18)로 촉매산화타워(16) 내측에 공급된 배기가스에 열을 가하여 배기가스에 포함된 입자상 오염물, 가스상 오염물을 저온 연소하여 3차로 제거함과 아울러 배기가스의 온도를 320~380℃로 승온한다.(S40단계)The exhaust gas that has passed through the bag filter 14 is supplied to the inside of the catalytic oxidation tower 16, and the exhaust gas supplied to the inside of the catalytic oxidation tower 16 by a heater 18 provided on the catalytic oxidation tower 16 By applying heat to the exhaust gas, particulate pollutants and gaseous pollutants contained in the exhaust gas are burned at a low temperature to remove the third stage, and the temperature of the exhaust gas is raised to 320 to 380°C (step S40).

이때, 상기 촉매산화타워(16)의 내측 상에는 상하로 상호 이격되어 배기가스 및 히터(18)에서 공급되는 열을 축열하는 축열재(30) 및 축열재(30)의 상부에는 250~450℃ 상에서 불포화탄산수소의 수소반응 및 탄화수소의 산화반응을 촉진하는 촉매(32)가 구비되어 사용되는 것이다.At this time, on the inner side of the catalytic oxidation tower 16, the heat storage material 30 and the heat storage material 30 that are separated from each other up and down to heat the exhaust gas and heat supplied from the heater 18 and the heat storage material 30 at 250 ~ 450 ℃ It is used with a catalyst 32 for accelerating the hydrogen reaction of unsaturated hydrogen carbonate and the oxidation reaction of hydrocarbons.

한편, 상기 촉매산화타워(16)의 내측 상에 구비되는 축열재(30)는 세라믹재로 형성되는 것이며, 열을 흡수함과 아울러 흡수한 열을 용이하게 유지함으로써, 에너지의 낭비를 방지함과 아울러 열이 용이하게 유지됨으로 에너지의 절감 또한 이루어지는 것이다.On the other hand, the heat storage material 30 provided on the inner side of the catalytic oxidation tower 16 is formed of a ceramic material, and absorbs heat and easily maintains the absorbed heat, thereby preventing waste of energy and In addition, since heat is easily maintained, energy is also saved.

또한, 상기 촉매산화타워(16)의 내측에 구비되는 촉매(32)는 플래티넘, 팔라듐, 로듐, 루테늄, 이리듐으로 이루어진 군에서 어느 1종 또는 2종 이상이 혼합 형성되어 이루어지는 것으로 촉매(32)로 인해 불포화탄산수소의 수소반응 및 탄화수소의 산화반응이 촉진되는 것이다.In addition, the catalyst 32 provided inside the catalytic oxidation tower 16 is formed by mixing any one or two or more from the group consisting of platinum, palladium, rhodium, ruthenium, and iridium. Because of this, the hydrogen reaction of unsaturated hydrocarbons and the oxidation of hydrocarbons are promoted.

그리고, 상기 촉매산화타워(16)는 한 쌍이 구비됨과 아울러 상호 이격 병렬 연결되어 작업자의 제어에 따라 순차 사용될 수 있는 것이며, 이로 인해 촉매산화타워(16)의 유지 및 보수가 용이하게 되는 것이다.In addition, the catalytic oxidation tower 16 is provided with a pair and is connected in parallel to each other so as to be sequentially used according to the control of the operator, thereby facilitating maintenance and repair of the catalytic oxidation tower 16.

상기 촉매산화타워(16)를 지나온 배기가스를 제1열교환기(12)로 공급함과 아울러 사이클론(10)을 지나 제1열교환기(12)로 공급되는 배기가스와 열교환하여 촉매산화타워(16)를 지나온 배기가스를 180~250℃로 감온한다.(S50단계)The catalytic oxidation tower (16) by supplying the exhaust gas that has passed through the catalytic oxidation tower (16) to the first heat exchanger (12) and exchanging heat with the exhaust gas supplied to the first heat exchanger (12) through the cyclone (10). The exhaust gas that has passed through is reduced to 180~250℃ (step S50).

이때, 상기 제1열교환기(12) 내에서는 사이클론(10)을 지나 제1열교환기(12)로 공급되는 배기가스는 승온되며, 촉매산화타워(16)를 지나 제1열교환기(12)로 공급되는 배기가스는 감온되게 되는 것이고, 이로 인해 배기가스의 폐열이 재사용됨으로 열에너지의 낭비가 감소됨은 물론 에너지의 절약 또한 이루어지는 것이다.At this time, in the first heat exchanger 12, the exhaust gas supplied to the first heat exchanger 12 through the cyclone 10 is heated, and passes through the catalytic oxidation tower 16 to the first heat exchanger 12. The supplied exhaust gas is reduced in temperature, and as a result, waste heat of the exhaust gas is reused, thereby reducing the waste of heat energy and also saving energy.

상기 촉매산화타워(16) 및 제1열교환기(12)를 지나온 180~250℃의 배기가스를 제2열교환기(20)로 공급함과 아울러 제2열교환기(20)로 공급된 외부공기와 열교환하며, 외부공기의 온도를 120~160℃로 승온한다.(S60단계)The exhaust gas of 180 to 250°C that has passed through the catalytic oxidation tower 16 and the first heat exchanger 12 is supplied to the second heat exchanger 20 and heat exchanged with the external air supplied to the second heat exchanger 20 And raise the temperature of the outside air to 120~160℃ (S60 step)

또한, 상기 제2열교환기(20)를 지나온 입자상 오염물, 가스상 오염물이 제거된 배기가스를 송풍기(24)를 거쳐 배출탑(22)을 통해 외부로 배출함과 아울러 배기가스와 열교환되어 예열된 외부공기를 텐터시설로 공급한다.(S70단계)In addition, the exhaust gas from which the particulate pollutants and gaseous pollutants have passed through the second heat exchanger 20 are discharged to the outside through the exhaust tower 22 through the blower 24 and heat exchanged with the exhaust gas to be preheated. Air is supplied to the tenter facility (S70 step)

이때, 상기 제2열교환기(20)는 배기가스의 폐열을 재사용함과 아울러 송풍기(24) 및 배출탑(22)을 통하여 외부로 배출되는 배기가스의 온도를 낮추도록 구비되는 것이며, 제2열교환기(20)로 인해 배기가스에 포함된 잔열이 회수됨과 아울러 배출탑(22)을 통해 배기가스가 외부로 배출될 시에 백연현상이 저감되는 효과 또한 있는 것이다.At this time, the second heat exchanger 20 is provided to reduce the temperature of the exhaust gas discharged to the outside through the blower 24 and the exhaust tower 22 while reusing the waste heat of the exhaust gas. Due to the group 20, residual heat contained in the exhaust gas is recovered, and when the exhaust gas is discharged to the outside through the exhaust tower 22, there is also an effect of reducing the white smoke phenomenon.

또한, 상기 제2열교환기(20)를 지나며 예열된 외부공기는 텐터시설로 공급되어 사용됨으로 에너지의 낭비가 줄어들게 되는 것이다.In addition, since the external air preheated while passing through the second heat exchanger 20 is supplied to the tenter facility and used, the waste of energy is reduced.

이와 같이 이루어지는 본 발명에 의한 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정은 텐터 후단에서 배출되는 배기가스 내에 포함된 입자상 오염물, 가스상 오염물(VOCs, THC)등의 대기오염 및 악취를 유발하는 오염물을 다단으로 연결 구비되는 사이클론(10), 백필터(14), 촉매산화타워(16)를 이용하여 포집 및 열분해하여 제거함과 아울러 제2열교환기(20)로 인해 배기가스와 열교환된 외부공기가 텐터시설로 공급되어 폐열이 회수 및 재활용됨으로 에너지의 절감 또한 이루어지는 이점이 있는 것이다.The low-temperature combustion treatment and waste heat recycling process of the exhaust gas after the tenter according to the present invention made as described above is a pollutant that causes air pollution and odor such as particulate pollutants and gaseous pollutants (VOCs, THC) contained in the exhaust gas discharged from the rear end of the tenter. By using a cyclone 10, a bag filter 14, and a catalytic oxidation tower 16, which are connected in multiple stages, the external air that has been heat-exchanged with the exhaust gas by the second heat exchanger 20 is removed by collecting and pyrolysis. There is an advantage of saving energy as it is supplied to a tenter facility and waste heat is recovered and recycled.

10 : 사이클론 12 : 제1열교환기
14 : 백필터 16 : 촉매산화타워
18 : 히터 20 : 제2열교환기
22 : 배출탑 24 : 송풍기
26 : 세정수 28 : 세정수단
30 : 축열재 32 : 촉매10: cyclone 12: first heat exchanger
14: bag filter 16: catalytic oxidation tower
18: heater 20: second heat exchanger
22: discharge tower 24: blower
26: washing water 28: washing means
30: heat storage material 32: catalyst

Claims (5)

텐터 후단에 연결되어 텐터 후단에서 배출되는 오염물을 포함하는 배기가스를 공급받는 사이클론(10)과, 사이클론(10)과 연결되어 배기가스를 공급받음과 아울러 배기가스의 온도를 높이도록 구비되는 제1열교환기(12)와, 제1열교환기(12)와 연결되어 배기가스를 공급받음과 아울러 배기가스에 포함된 오염물을 포집하는 백필터(14)와, 백필터(14)와 연결되어 배기가스를 공급받음과 아울러 배기가스에 열을 가하여 배기가스를 연소하는 촉매산화타워(16)와, 촉매산화타워(16)의 내측을 지난 후 재차 제1열교환기(12)로 공급되어 사이클론(10)을 지나온 배기가스와 열교환된 배기가스를 공급받음과 아울러 외부공기를 배기가스와 열교환하여 예열된 외부공기를 텐터시설로 공급하는 제2열교환기(20)와, 제2열교환기(20)와 연결되어 제2열교환기(20)를 지나온 배기가스를 공급받음과 아울러 입자상 오염물, 가스상 오염물이 제거된 배기가스를 배출탑(22)을 통해 외부로 배출하도록 구비되는 송풍기(24)로 이루어지는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정에 있어서,
상기 텐터 후단에서 배출되는 120~180℃의 배기가스가 사이클론(10)의 내측으로 공급됨과 아울러 사이클론(10)의 내측에서는 배기가스에 포함된 입자상 오염물, 가스상 오염물을 1차로 포집하는 제1단계(S10);
상기 사이클론(10)을 지나며 배기가스에 포함된 입자상 오염물, 가스상 오염물이 1차로 포집 및 제거된 배기가스를 제1열교환기(12)의 내측으로 공급받으며, 제1열교환기(12) 상에서 열교환을 통해 사이클론(10)에서 공급된 배기가스의 온도를 200~280℃로 승온하는 제2단계(S20);
상기 제1열교환기(12)를 지나며 승온된 배기가스를 백필터(14)의 내측으로 공급받으며, 배기가스에 포함된 입자상 오염물, 가스상 오염물을 2차로 포집 및 제거하는 제3단계(S30);
상기 백필터(14)를 지나온 배기가스를 촉매산화타워(16)의 내측으로 공급받으며, 촉매산화타워(16) 상에 구비되는 히터(18)로 촉매산화타워(16) 내측에 공급된 배기가스에 열을 가하여 배기가스에 포함된 입자상 오염물, 가스상 오염물을 저온 연소하여 3차로 제거함과 아울러 배기가스의 온도를 320~380℃로 승온하는 제4단계(S40);
상기 촉매산화타워(16)를 지나온 배기가스를 제1열교환기(12)로 공급함과 아울러 사이클론(10)을 지나 제1열교환기(12)로 공급되는 배기가스와 열교환하여 촉매산화타워(16)를 지나온 배기가스를 180~250℃로 감온하는 제5단계(S50);
상기 촉매산화타워(16) 및 제1열교환기(12)를 지나온 180~250℃의 배기가스를 제2열교환기(20)로 공급함과 아울러 제2열교환기(20)로 공급된 외부공기와 열교환하며, 외부공기의 온도를 120~160℃로 승온하는 제6단계(S60);
상기 제2열교환기(20)를 지나온 입자상 오염물, 가스상 오염물이 제거된 배기가스를 송풍기(24)를 거쳐 배출탑(22)을 통해 외부로 배출함과 아울러 배기가스와 열교환되어 예열된 외부공기를 텐터시설로 공급하는 제7단계(S70);
를 포함하여 이루어지는 것을 특징으로 하는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정.A cyclone 10 connected to the rear end of the tenter to receive exhaust gas including pollutants discharged from the rear end of the tenter, and a first provided to increase the temperature of the exhaust gas while being connected to the cyclone 10 to receive the exhaust gas. A heat exchanger 12 and a bag filter 14 connected to the first heat exchanger 12 to receive exhaust gas and collect contaminants included in the exhaust gas, and the bag filter 14 to be connected to the exhaust gas. The catalytic oxidation tower 16 which burns the exhaust gas by applying heat to the exhaust gas while receiving the supply, and the first heat exchanger 12 after passing through the inside of the catalytic oxidation tower 16 are supplied to the cyclone (10). Connected to the second heat exchanger (20) and the second heat exchanger (20) supplying the preheated external air to the tenter facility by receiving heat exchanged with the exhaust gas and heat-exchanging external air with the exhaust gas. The exhaust gas at the rear end of the tenter consisting of a blower 24 provided to discharge exhaust gas from which particulate pollutants and gaseous pollutants have been removed to the outside through the discharge tower 22 while receiving the exhaust gas that has passed through the second heat exchanger 20 In the low temperature combustion treatment of gas and waste heat recycling process,
The first step of collecting the particulate pollutants and gaseous pollutants contained in the exhaust gas from the inside of the cyclone 10 while the exhaust gas of 120 to 180°C discharged from the rear end of the tenter is supplied to the inside of the cyclone 10 ( S10);
The exhaust gas from which particulate pollutants and gaseous pollutants contained in the exhaust gas passing through the cyclone 10 are first collected and removed is supplied to the inside of the first heat exchanger 12, and heat exchange is performed on the first heat exchanger 12. A second step (S20) of raising the temperature of the exhaust gas supplied from the cyclone 10 to 200 to 280°C;
A third step (S30) of receiving the exhaust gas heated up through the first heat exchanger (12) to the inside of the bag filter (14), and secondly collecting and removing particulate pollutants and gaseous pollutants contained in the exhaust gas;
The exhaust gas that has passed through the bag filter 14 is supplied to the inside of the catalytic oxidation tower 16, and the exhaust gas supplied to the inside of the catalytic oxidation tower 16 by a heater 18 provided on the catalytic oxidation tower 16 A fourth step (S40) of applying heat to the particulate contaminants and gaseous contaminants contained in the exhaust gas by burning them at a low temperature to thirdly remove the temperature of the exhaust gas and raising the temperature of the exhaust gas to 320 to 380°C;
The catalytic oxidation tower 16 by supplying the exhaust gas passing through the catalytic oxidation tower 16 to the first heat exchanger 12 and exchanging heat with the exhaust gas supplied to the first heat exchanger 12 through the cyclone 10 A fifth step (S50) of reducing the temperature of the exhaust gas passing through to 180 to 250°C;
The exhaust gas of 180 to 250°C that has passed through the catalytic oxidation tower 16 and the first heat exchanger 12 is supplied to the second heat exchanger 20 and exchanged with external air supplied to the second heat exchanger 20 And, the sixth step (S60) of raising the temperature of the outside air to 120 ~ 160 ℃;
Exhaust gas from which particulate pollutants and gaseous pollutants have passed through the second heat exchanger 20 are discharged to the outside through a blower 24 through the exhaust tower 22, and heat-exchanged with the exhaust gas to provide preheated external air. A seventh step of supplying to the tenter facility (S70);
Low temperature combustion treatment and waste heat recycling process of exhaust gas after the tenter, characterized in that it comprises a. 제1항에 있어서,
상기 백필터(14)의 내측에는 외부로부터 세정수(26)를 공급받아 미립화하여 분사하는 세정수단(28)이 구비되어 이루어지는 것을 특징으로 하는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정.The method of claim 1,
A low-temperature combustion treatment and waste heat recycling process of exhaust gas after a tenter, characterized in that the bag filter (14) is provided with a cleaning means (28) supplied with cleaning water (26) from the outside and atomized and sprayed. 제1항에 있어서,
상기 촉매산화타워(16)의 내측 상에는 상하로 상호 이격되어 배기가스 및 히터에서 공급되는 열을 축열하는 축열재(30) 및 축열재(30)의 상부에는 250~450℃ 상에서 불포화탄산수소의 수소반응 및 탄화수소의 산화반응을 촉진하는 촉매(32)가 구비되며, 촉매(32)는 플래티넘, 팔라듐, 로듐, 루테늄, 이리듐으로 이루어진 군에서 어느 1종 또는 2종 이상이 혼합 형성되어 이루어지는 것을 특징으로 하는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정.The method of claim 1,
On the inner side of the catalytic oxidation tower 16, the heat storage material 30 is spaced apart from each other up and down to heat the heat supplied from the exhaust gas and the heater, and on the top of the heat storage material 30, hydrogen reaction of unsaturated hydrogen carbonate at 250 to 450°C And a catalyst 32 for accelerating the oxidation reaction of hydrocarbons, and the catalyst 32 is formed by mixing any one or two or more from the group consisting of platinum, palladium, rhodium, ruthenium, and iridium. Low-temperature combustion treatment of exhaust gas after tenter and waste heat recycling process. 제2항에 있어서,
상기 세정수(26)는 워터, 가성소다, 탄산나트륨, 황산으로 이루어진 군에서 어느 1종 또는 2종 이상이 혼합 형성되어 이루어짐을 특징으로 하는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정.The method of claim 2,
The washing water 26 is a low-temperature combustion treatment and waste heat recycling process of exhaust gas after a tenter, characterized in that one or two or more types are mixed and formed from the group consisting of water, caustic soda, sodium carbonate, and sulfuric acid. 제1항에 있어서,
상기 사이클론(10) 및 촉매산화타워(16)는 각각 다수개 구비됨과 아울러 각각은 상호 직렬로 연결 구비되어 이루어지는 것을 특징으로 하는 텐터 후단 배기가스의 저온 연소 처리 및 폐열 재활용 공정.The method of claim 1,
The cyclone 10 and the catalytic oxidation tower 16 are provided in plural, and each is connected in series with each other.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100660234B1 (en) * 2005-12-27 2006-12-21 주식회사 포스코 System and method for cleaning outgas of sintering process in the dry
KR101489190B1 (en) 2014-10-20 2015-02-09 주식회사 지이테크 The oil mist, organic solvent recovering device Included in industrial exhaust gases and method of recovering oil mist, organic solvent using the same
KR101719540B1 (en) * 2016-08-10 2017-04-05 김진수 Indoor Concentrated and Combustion System of VOC with Catalyst Oxidation device and Energy Recycling Means
KR101854113B1 (en) * 2017-09-28 2018-05-03 주식회사 지이테크 High-viscosity contaminants processing method of tenter rear of dyeing industry using washing/dust collector, dehumidifying/heating and electric precipitator
KR102171442B1 (en) * 2020-03-02 2020-10-29 주식회사 지이테크 High-viscosity contaminants processing method of tenter rear of dyeing industry using heat recovery of exhaust gas
KR102175549B1 (en) * 2020-09-15 2020-11-09 주식회사 지이테크 Multi-stage exhaust gas treatment process system having means to reduce odor, white smoke in exhaust gas after tenter and means for recovery of highly viscous pollutants

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100660234B1 (en) * 2005-12-27 2006-12-21 주식회사 포스코 System and method for cleaning outgas of sintering process in the dry
KR101489190B1 (en) 2014-10-20 2015-02-09 주식회사 지이테크 The oil mist, organic solvent recovering device Included in industrial exhaust gases and method of recovering oil mist, organic solvent using the same
KR101719540B1 (en) * 2016-08-10 2017-04-05 김진수 Indoor Concentrated and Combustion System of VOC with Catalyst Oxidation device and Energy Recycling Means
KR101854113B1 (en) * 2017-09-28 2018-05-03 주식회사 지이테크 High-viscosity contaminants processing method of tenter rear of dyeing industry using washing/dust collector, dehumidifying/heating and electric precipitator
KR102171442B1 (en) * 2020-03-02 2020-10-29 주식회사 지이테크 High-viscosity contaminants processing method of tenter rear of dyeing industry using heat recovery of exhaust gas
KR102175549B1 (en) * 2020-09-15 2020-11-09 주식회사 지이테크 Multi-stage exhaust gas treatment process system having means to reduce odor, white smoke in exhaust gas after tenter and means for recovery of highly viscous pollutants

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