KR102087776B1 - Sulfur compounds abatement apparatus for waste burning furnace - Google Patents

Sulfur compounds abatement apparatus for waste burning furnace Download PDF

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KR102087776B1
KR102087776B1 KR1020190056247A KR20190056247A KR102087776B1 KR 102087776 B1 KR102087776 B1 KR 102087776B1 KR 1020190056247 A KR1020190056247 A KR 1020190056247A KR 20190056247 A KR20190056247 A KR 20190056247A KR 102087776 B1 KR102087776 B1 KR 102087776B1
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combustion gas
sulfur compound
sulfur
waste
reducing
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KR1020190056247A
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Korean (ko)
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강대엽
원남희
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신대원보일러 주식회사
강대엽
원남희
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/003—Arrangements of devices for treating smoke or fumes for supplying chemicals to fumes, e.g. using injection devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/20—Waste heat recuperation using the heat in association with another installation
    • F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/20—Sulfur; Compounds thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/12—Heat utilisation in combustion or incineration of waste

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treating Waste Gases (AREA)
  • Chimneys And Flues (AREA)

Abstract

The present invention relates to a sulfur compound reducing device for a waste incinerator, capable of spraying a mist type sulfur compound reducing agent to combustion gas at high temperature generated when waste is incinerated in a waste incinerator and reducing sulfur compound without generating a solid matter as the sulfur compound included in the combustion gas is reacted in a gas state. According to the present invention, the sulfur compound reducing device for a waste incinerator includes: the waste incinerator (100) incinerating the waste supplied from the outside using an ignition device; a heat exchange boiler (200) heating the water of the inside in a heat exchange method by receiving combustion gas generated by the inclination of the waste from the waste incinerator (100) and reducing the temperature of the combustion gas, wherein the heat exchange boiler (200) generates the water at the high temperature by raising the temperature of the water; a sulfur compound reducing member (300) spraying the mist type sulfur compound reducing agent to the combustion gas supplied through the heat exchange boiler (200) and reducing the sulfur compounds included in the combustion gas as the sulfur compounds included in the combustion gas are gasified by reacting to the sulfur compound reducing agent; and a gas purifying member (400) cleaning and treating gas by receiving the combustion gas discharged from the sulfur compound reducing member (300), wherein the gas purifying member (400) filters foreign substances and discharges the filtered foreign substances into the air.

Description

폐기물 소각로용 황화합물 저감장치{SULFUR COMPOUNDS ABATEMENT APPARATUS FOR WASTE BURNING FURNACE}Sulfur Compound Reduction Device for Waste Incinerator {SULFUR COMPOUNDS ABATEMENT APPARATUS FOR WASTE BURNING FURNACE}

본 발명은 폐기물 소각로에서 폐기물이 소각될 때 발생되는 고온의 연소가스에 황화합저감물 안개형태로 분사하여 연소가스에 포함된 황화합물이 기상화상태로 반응되어서 고형물이 발생되지 않으면서 저감될 수 있는 폐기물 소각로용 황화합물 저감장치에 관한 것이다.The present invention can be reduced without the generation of solids by injecting sulfur compounds contained in the combustion gas in a vaporized state by spraying a high temperature combustion gas generated when waste is incinerated in a waste incinerator in the form of a mist of sulfur sulfide reduction. The present invention relates to a sulfur compound reducing device for a waste incinerator.

일반적으로, 폐기물 소각로에서는 폐기물이 연소됨에 따라 발생되는 연소가스가 배출된다. In general, waste incinerators emit combustion gases generated as waste is burned.

특히, 폐기물이 소각되는 과정에서 발생되는 연소가스 중에는 HCl 및 SOx 등의 황화합물이 포함되어 있다. In particular, the combustion gas generated during the incineration of waste contains sulfur compounds such as HCl and SOx.

도 1a 및 1b는 종래의 폐기물 소각로를 보인 도면이다. 1A and 1B show a conventional waste incinerator.

도 1a에 도시된 바와 같이, 소각로(10)에서는 폐기물이 소각됨에 따라 황화합물이 포함된 연소가스가 배출된다. As shown in FIG. 1A, incinerator 10 emits combustion gas containing sulfur compounds as the waste is incinerated.

보일러(20)는 폐기물 소각로(100)에서 배출되는 연소가스를 이용하는 난방에 사용한다. The boiler 20 is used for heating using combustion gas discharged from the waste incinerator 100.

전처리소석회공급부(30-1)는 보일러(20)를 거쳐서 배출되는 연소가스에 소석회분말을 공급하여 연소가스에 포함된 황화합물을 저감시킨다. The preliminary calcined lime supply unit 30-1 supplies the calcined lime powder to the combustion gas discharged through the boiler 20 to reduce sulfur compounds contained in the combustion gas.

세정탑(41)은 전처리소석회공급부(30-1)를 통해 배출되는 연소가스에 액상소석회를 분사하여 연소가스에 포함된 황화합물을 재차 저감시킨다. The washing tower 41 injects liquid lime into the combustion gas discharged through the pretreatment lime supply unit 30-1 to reduce sulfur compounds contained in the combustion gas again.

백필터(42)는 황화합물이 저감된 연소가스에서 소각된 폐기물에 대한 고형물을 필터링하여 배출시킨다. The bag filter 42 filters and discharges the solids for the waste incinerated in the combustion gas in which sulfur compounds are reduced.

그리고, 도 1b에 도시된 바와 같이, 후처리소석회공급부(30-2) 세정탑(41) 및 백필터(42)의 사이에 설치되어 세정탑(41)에서 배출되는 연소가스에 소석회분말을 공급하여 연소가스에 포함된 황화합물을 저감시킨다. And, as shown in Figure 1b, it is installed between the post-treatment lime supply unit 30-2, the washing tower 41 and the bag filter 42 to supply the calcined lime powder to the combustion gas discharged from the washing tower 41 To reduce the sulfur compounds contained in the combustion gases.

그러나, 전술한 종래기술은 연소가스에 포함된 황화합물을 저감시키기 위해 세정탑(41)의 전 또는 후에 구비되는 소석회공급부에서 소석회분말을 공급하므로, 소석회에 의한 많은 양의 고형물이 발생되어 청소를 자주하여야 하는 번거로운 문제점이 있고, 많은 양의 고형물을 처리하는 비용도 상승하는 문제점이 있었다. However, the above-described prior art supplies the slaked lime powder from the slaked lime supply part provided before or after the cleaning tower 41 to reduce the sulfur compound contained in the combustion gas, so that a large amount of solids generated by the slaked lime are frequently cleaned. There is a problem that has to be troublesome, and there is a problem that the cost of processing a large amount of solids also increases.

본 발명의 배경기술은 등록특허 제10-0260743호가 2000년04월11일자로 대한민국 특허청에 등록되어 있다. Background art of the present invention is a registered patent No. 10-0260743 is registered with the Korean Intellectual Property Office on April 11, 2000.

본 발명이 해결하고자 하는 과제는, 폐기물 소각로에서 폐기물이 소각될 때 발생되는 고온의 연소가스에 황화합저감물 안개형태로 분사하여 연소가스에 포함된 황화합물이 기상화상태로 반응되어서 고형물이 발생되지 않으면서 저감될 수 있는 폐기물 소각로용 황화합물 저감장치를 제공하는 데 있다. The problem to be solved by the present invention, by injecting in the form of sulfur sulfide reduction mist to the high temperature combustion gas generated when the waste is incinerated in the waste incinerator, sulfur compounds contained in the combustion gas is reacted in the gasification state, solids are not generated. It is to provide a sulfur compound reduction device for waste incinerators that can be reduced without.

본 발명의 다른 과제는, 가스정화부재의 세정탑에서 황화합물을 저감시키기 위한 소석회가 최소한으로만 사용될 수 있어서, 소석회에 의해 발생되는 고형물이 최소화될 수 있는 폐기물 소각로용 황화합물 저감장치를 제공하는 데 있다. Another object of the present invention is to provide a sulfur compound reduction device for waste incinerators, in which a slaked lime for reducing sulfur compounds in a scrubber of a gas purifying member can be used to a minimum, so that solids generated by slaked lime can be minimized. .

본 발명의 일실시예인 폐기물 소각로용 황화합물 저감장치는, 외부로부터 공급되는 폐기물을 점화장치를 이용하여 소각하는 폐기물 소각로(100)와, 폐기물 소각로(100)로부터 폐기물 소각에 의해 발생되는 연소가스를 제공받아 내부의 물을 열교환방식으로 가열하여 연소가스의 온도를 낮추고, 물의 온도를 높여 고온의 물을 생성하는 열교환보일러(200)와, 열교환보일러(200)를 거쳐서 공급되는 연소가스에 황화합저감물을 안개형상으로 분무시켜 연소가스에 포함된 황화합물이 황화합저감물과 반응하여 기화되어서 저감되는 황화합물 저감부재(300)와, 황화합물 저감부재(300)에서 배출되는 연소가스를 제공받아 세정하여 처리하고 이물질을 필터링하여 대기중으로 배출시키는 가스정화부재(400)를 포함하는 것을 특징으로 한다. The sulfur compound reduction device for waste incinerators according to one embodiment of the present invention provides a waste incinerator 100 for incinerating waste supplied from an outside using an ignition device and a combustion gas generated by waste incineration from the waste incinerator 100. The internal water is heated by a heat exchange method to lower the temperature of the combustion gas, and the temperature of the water to increase the temperature of the heat exchange boiler 200 to produce high temperature water, and the sulfide mixture to the combustion gas supplied through the heat exchange boiler 200. The sulfur compound contained in the combustion gas is vaporized in the form of a mist by reacting with the sulfur sulfide reducing material and vaporized to reduce the sulfur compound reducing member 300 and the combustion gas discharged from the sulfur compound reducing member 300. Characterized in that it comprises a gas purifying member 400 for filtering foreign substances to discharge into the atmosphere.

바람직하게, 황화합물 저감부재(300)는 열교환보일러(200)에 연결되어 연소가스가 관류되는 연소가스유입덕트(310)와, 연소가스유입덕트(310)를 통해 배출되는 연소가스에 황화합저감물을 안개형태로 분사하는 안개노즐(320)과, 연소가스유입덕트(310)에서 배출되는 연소가스에 안개노즐(320)에서 분사되는 황화합저감물이 혼합되는 공간이 제공되어, 연소가스에 포함된 황화합물이 안개형태로 제공되는 황화합저감물에 기상상태로 반응되어서 저감되는 황화합물 저감챔버(330)와, 황화합물 저감챔버(330)에서 황화합물이 저감된 연소가스를 가스정화부재(400)로 배출시키는 연소가스배출덕트(340)를 포함하는 것을 특징으로 한다. Preferably, the sulfur compound reducing member 300 is connected to the heat exchange boiler 200, the combustion gas inlet duct 310 through which the combustion gas flows, and the sulfur sulfide reduction material in the combustion gas discharged through the combustion gas inlet duct 310. The mist nozzle 320 for spraying the mist in the form of a mist, and the combustion gas discharged from the combustion gas inlet duct 310 is provided with a space in which the sulfide mixture injected from the mist nozzle 320 is mixed, and included in the combustion gas. Sulfur compound reduction chamber 330 which is reduced by reacting the sulfur compound reduced in a gaseous state provided in the form of a mist, and the combustion gas in which sulfur compound is reduced from sulfur compound reduction chamber 330 is discharged to gas purifying member 400. It characterized in that it comprises a combustion gas discharge duct 340 to.

바람직하게, 연소가스덕트(310)가 황화합물 저감챔버(330)에 연통되고, 안개노즐(320)은 연소가스덕트(310)의 둘레를 따라 분산되는 상태로 황화합물 저감챔버(330)에 설치되는 것을 특징으로 한다. Preferably, the combustion gas duct 310 is in communication with the sulfur compound reduction chamber 330, the fog nozzle 320 is installed in the sulfur compound reduction chamber 330 in a state dispersed along the circumference of the combustion gas duct 310 It features.

바람직하게, 황화합물 저감챔버(330)에는 연소가스유입덕트(310)가 일측에서 측방으로 연통되게 설치되고, 연소가스배출덕트(340)가 타측에서 상방으로 연통되게 설치되며, 연소가스유입덕트(310)에서 연소가스배출덕트(340)로 이동하는 연소가스에 포함된 고형물을 모으기 위한 호퍼(331)가 연소가스배출덕트(340)의 직하부에 위치되는 상태로 바닥에 설치되는 것을 특징으로 한다. Preferably, in the sulfur compound reduction chamber 330, the combustion gas inlet duct 310 is installed to communicate sideways from one side, and the combustion gas discharge duct 340 is installed to communicate upward from the other side, the combustion gas inlet duct 310 The hopper 331 for collecting the solids contained in the combustion gas moving to the combustion gas discharge duct 340 in the) is characterized in that it is installed on the floor in a state located directly below the combustion gas discharge duct 340.

바람직하게, 황화합저감물은 가성소다 0.1~0.5 중량%와 물 99.5~99.9 중량%가 혼합되어 이루어지는 것을 특징으로 한다. Preferably, the sulfide reducing material is characterized in that the mixture is made of 0.1 to 0.5% by weight of caustic soda and 99.5 to 99.9% by weight of water.

본 발명의 일실시예에 따른 황화합물 저감장치는 폐기물 소각로에서 폐기물이 소각될 때 발생되는 고온의 연소가스에 황화합저감물 안개형태로 분사하여 연소가스에 포함된 황화합물이 기상화상태로 반응되어서 고형물이 발생되지 않으면서 저감될 수 있어서, 가스정화부재의 세정탑에서 황화합물을 저감시키기 위해 소석회가 최소한으로만 사용될 수 있고, 소석회에 의해 발생되는 고형물도 최소화될 수 있는 장점이 있다. In the sulfur compound reducing device according to an embodiment of the present invention, the sulfur compound contained in the combustion gas is reacted in a gaseous state by spraying in the form of a mist of sulfur sulfide into the high temperature combustion gas generated when the waste is incinerated in a waste incinerator. Since it can be reduced without being generated, the slaked lime can be used only to minimize the sulfur compound in the cleaning tower of the gas purification member, and there is an advantage that the solids generated by the slaked lime can also be minimized.

또한, 황화합물 저감부재에서 유입되는 연소가스에 황화합저감물을 안개형태로 분사하므로, 연소가스에 포함된 황화합물의 반응이 용이하게 이루어질 수 있는 이점이 있다. In addition, since the sulfur sulfide reduction material is injected into the combustion gas flowing from the sulfur compound reducing member in the form of a fog, there is an advantage that the reaction of the sulfur compound contained in the combustion gas can be easily made.

또한, 황화합저감물을 분사하는 노즐들이 연소가스가 배출되는 덕트의 둘레에 설치되어 있어서, 황화합저감물이 연소가스에 전체적으로 고르게 분사될 수 있는 이점이 있다. In addition, since the nozzles for injecting the sulfide reduction material are installed around the duct through which the combustion gas is discharged, there is an advantage that the sulfide reduction material can be evenly injected into the combustion gas as a whole.

도 1a 및 1b는 종래의 폐기물 소각로를 보인 도면.
도 2는 본 발명에 따른 폐기물 소각용 황화합물 저감장치를 보인 도면.
도 3은 본 발명의 요부를 보인 도면.
도 4는 본 발명의 다른 요부를 보인 부분 사시도.1a and 1b show a conventional waste incinerator.
2 is a view showing a sulfur compound reduction device for incineration of waste according to the present invention.
Figure 3 shows the main part of the present invention.
4 is a partial perspective view showing another main portion of the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 일실시예에 따른 폐기물 소각로용 황화합물 저감장치를 자세히 설명한다. Hereinafter, a sulfur compound reducing apparatus for a waste incinerator according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도시된 바와 같이, 폐기물 소각로(100)는 외부로부터 공급되는 폐기물을 버너와 같은 화염을 발생시키는 점화장치를 이용하여 소각한다. 이러한, 폐기물 소각로(100)는 메인소각로(110)만으로 형성될 수 있지만, 폐기물의 완전연소를 위해서 섭씨 800~1,200도의 온도로 가열하여 소각하는 메인소각로(110)와, 메인소각로(110)를 거쳐 소각된 폐기물을 다시 공급받아 섭씨 850도 이상의 온도로 완전연소가 이루어지도록 소각하는 보조소각로(120)로 이루어질 수 있다. As shown, the waste incinerator 100 incinerates waste supplied from the outside using an ignition device that generates a flame such as a burner. The waste incinerator 100 may be formed only by the main incinerator 110, but the main incinerator 110 and the main incinerator 110 are incinerated by heating at a temperature of 800 to 1,200 degrees Celsius for complete combustion of the waste. Re-incinerated waste may be supplied to the auxiliary incinerator 120 to incinerate to complete combustion at a temperature of more than 850 degrees Celsius.

열교환보일러(200)는 폐기물 소각로(100)로부터 폐기물 소각에 의해 발생되는 연소가스를 제공받아 내부의 물을 열교환방식으로 가열하여 연소가스의 온도를 낮추고, 물의 온도를 높여 고온의 물 및 스팀을 생성하게 된다. 이때, 열교환보일러(200)에서 생성된 고온의 물 또는 스팀은 난방용 또는 발전용 등으로 사용될 수 있고, 열교환보일러(200)에서 배출되는 연소가스는 섭씨 200~400도의 온도를 갖게 된다. 그리고, 열교환보일러(200)에서 배출되는 연소가스는 황화합물 저감부재(300)로 제공된다. The heat exchange boiler 200 receives the combustion gas generated by the waste incineration from the waste incinerator 100 and heats the water in a heat exchange method to lower the temperature of the combustion gas and increase the temperature of the water to generate hot water and steam. Done. At this time, the hot water or steam generated in the heat exchange boiler 200 may be used for heating or power generation, and the combustion gas discharged from the heat exchange boiler 200 has a temperature of 200 to 400 degrees Celsius. In addition, the combustion gas discharged from the heat exchange boiler 200 is provided to the sulfur compound reducing member 300.

황화합물 저감부재(300)는 열교환보일러(200)를 거쳐서 공급되는 연소가스에 황화합저감물을 미세하게 분무하여 연소가스에 포함된 황화합물이 황화합저감물과 반응하여 기화시켜서 황화합물을 저감시킨다. 이러한 황화합물 저감부재(300)는 열교환보일러(200)에 연결되어 연소가스가 관류되는 연소가스유입덕트(310)와, 연소가스유입덕트(310)를 통해 배출되는 연소가스에 황화합저감물을 안개형태로 분사하는 안개노즐(320)과, 연소가스유입덕트(310)에서 배출되는 연소가스에 안개노즐(320)에서 분사되는 황화합저감물이 혼합되는 공간이 제공되어, 연소가스에 포함된 황화합물이 안개형태로 제공되는 황화합저감물에 기상상태로 반응되어서 저감되는 황화합물 저감챔버(330)와, 황화합물 저감챔버(330)에서 황화합물이 저감된 연소가스를 가스정화부재(400)로 배출시키는 연소가스배출덕트(340)를 포함한다. The sulfur compound reducing member 300 finely sprays a sulfur sulfide reducer into the combustion gas supplied through the heat exchange boiler 200 to reduce the sulfur compound by reacting and vaporizing the sulfur compound contained in the combustion gas with the sulfide reducing agent. The sulfur compound reducing member 300 is connected to the heat exchange boiler 200, the combustion gas inlet duct 310 through which the combustion gas flows, and the sulfur sulfide reduction material in the combustion gas discharged through the combustion gas inlet duct 310. A sulfur compound contained in the combustion gas is provided by a space in which the mist nozzle 320 sprayed in the form and the combustion gas discharged from the combustion gas inlet duct 310 are mixed with the sulfide mixture injected from the mist nozzle 320. The sulfur compound reduction chamber 330 which is reduced by reacting the sulfur compound reducing substance provided in the fog form in a gaseous state and the combustion gas in which the sulfur compound is reduced in the sulfur compound reduction chamber 330 are discharged to the gas purifying member 400. Gas exhaust duct 340 is included.

황화합저감물은 가성소다가 물을 혼합되어 이루어질 수 있다. 더욱 상세하게는 가성소다 0.1~0.5 중량%와 물 99.5~99.9 중량%가 혼합되어 이루어질 수 있다. 그리고, 황화합물은 Hcl 및 Sox를 포함한다. Sulfurized reducing material may be made by mixing caustic soda with water. More specifically, the caustic soda may be made by mixing 0.1 to 0.5% by weight of water and 99.5 to 99.9% by weight of water. And sulfur compounds include Hcl and Sox.

연소가스유입덕트(310)가 황화합물 저감챔버(330)에 연통되므로 관류되는 연소가스가 황화합물 저감챔버(330)의 내부공간에 공급된다. Since the combustion gas inlet duct 310 communicates with the sulfur compound reducing chamber 330, the flowing combustion gas is supplied to the internal space of the sulfur compound reducing chamber 330.

안개노즐(320)은 연소가스유입덕트(310)의 둘레를 따라 분산되는 상태로 황화합물 저감챔버(330)에 설치된다. 따라서, 안개노즐(320)들에서 분사되는 황화합저감물이 안개형태로 분무되면 연소가스의 온도 저하를 최소화시키면서 황화합저감물의 반응이 용이하게 이루어지게 할 수 있다. The fog nozzle 320 is installed in the sulfur compound reducing chamber 330 in a state of being dispersed along the circumference of the combustion gas inlet duct 310. Therefore, when the sulfide mixture sprayed from the mist nozzles 320 is sprayed in the form of mist, the reaction of the sulfide mixture may be easily performed while minimizing the temperature drop of the combustion gas.

이와 같이, 안개형태로 분사되는 황화합저감물이 연소가스에 포함된 황화합물과 반응하면서 황화합물 저감챔버(330) 내의 고온에 의해서 기화되어서 저감된다. 즉, 황화합저감물에 의해 반응되는 황화합물에서 고형물이 발생되지 않으면서 연소가스가 처리될 수 있다. As described above, the sulfided reducing matter injected in the form of a mist reacts with the sulfur compound contained in the combustion gas and is vaporized by the high temperature in the sulfur compound reducing chamber 330 to be reduced. That is, the combustion gas can be treated without generating solids in the sulfur compound reacted by the sulfide reducing agent.

황화합물 저감챔버(330)에는 연소가스유입덕트(310)가 일측에서 측방으로 연통되게 설치되고, 연소가스배출덕트(340)가 타측에서 상방으로 연통되게 설치되며, 연소가스유입덕트(310)에서 연소가스배출덕트(340)로 이동하는 연소가스에 포함된 고형물을 모으기 위한 호퍼(331)가 연소가스배출덕트(340)의 직하부에 위치되는 상태로 바닥에 설치되고, 호퍼(331)에 의해 모여진 고형물을 외부로 배출하기 위한 드레인(332)이 호퍼(331)에서 중앙에 형성된다. In the sulfur compound reduction chamber 330, the combustion gas inlet duct 310 is installed to communicate sideways from one side, and the combustion gas discharge duct 340 is installed to communicate upward from the other side, and the combustion gas inlet duct 310 is combusted. Hopper 331 for collecting the solids contained in the combustion gas moving to the gas discharge duct 340 is installed on the floor in a state located directly below the combustion gas discharge duct 340, collected by the hopper 331 A drain 332 for discharging solids to the outside is formed at the center of the hopper 331.

여기서, 저감챔버(330)의 측방으로 연결되는 연소가스유입덕트(310)를 통해 황화합물 저감챔버(330)의 내부공간으로 연소가스가 유입되어 이동하면 안개노즐(320)을 통해 황화합저감물이 분사되어 연소가스에 혼합된다. 이때, 연소가스는 저감챔버(330)의 내부공간에서 연소가스배출덕트(340)까지 이동하는 과정에서 분사되는 황화합저감물에 반응됨에 따라 황화합물이 분해되고, 황화합물이 분해되면서 생성되는 물도 저감챔버(330) 내의 고온에 의해 기화되어 소멸되면서 연소가스배출덕트(340)로 배출된다. Here, when the combustion gas flows into the internal space of the sulfur compound reduction chamber 330 through the combustion gas inlet duct 310 connected to the side of the reduction chamber 330, the sulfur sulfide reduction material is transferred through the fog nozzle 320. It is injected and mixed in the combustion gas. At this time, the combustion gas is reacted to the sulfur sulfide reducing material injected in the process of moving from the internal space of the reduction chamber 330 to the combustion gas discharge duct 340, the sulfur compound is decomposed, and the water generated as the sulfur compound is decomposed chamber Vaporized and extinguished by the high temperature in 330 is discharged to the combustion gas discharge duct 340.

연소가스배출덕트(340)는 황화합물 저감챔버(330)의 상부에 연통되게 설치될 수 있다. The combustion gas discharge duct 340 may be installed in communication with the upper portion of the sulfur compound reduction chamber 330.

이와 같이, 황화합물 저감부재(300)에 의해 연소가스에 포함된 황화합물의 약연소가스에 포함된 고형물이 약70~80%이상 저감된 상태로 배출되는 연소가스가 가스정화부재(400)로 제공된다. 이에 의해, 가스정화부재(400)에서는 연소가스를 정화시키기 위해 사용되는 액상소석회의 양을 줄일 수 있으므로, 세정탑(410)에서는 소석회에 의해 발생되는 고형물이 쌓이는 망태현상이 현저하게 감소될 수 있다. As such, the combustion gas discharged while the solid matter contained in the weak combustion gas of the sulfur compound included in the combustion gas is reduced by about 70 to 80% or more by the sulfur compound reducing member 300 is provided to the gas purification member 400. . As a result, since the amount of liquid slaked lime used to purify the combustion gas may be reduced in the gas purifying member 400, the network phenomenon in which solids generated by the slaked lime accumulates in the washing tower 410 may be significantly reduced. .

가스정화부재(400)는 황화합물 저감부재(300)에서 배출되는 연소가스를 제공받아 세정하여 처리하고 이물질을 필터링하여 대기중으로 배출시킨다. 이러한, 가스정화부재(400)는 저감부재(300)로부터 배출되는 연소가스를 제공받아 세정하는 세정탑(410)과, 세정탑(410)에서 배출되는 세정된 연소가스를 필터링하는 필터부(420)를 포함한다. 이러한, 가스정화부재(400)는 세정탑(410)에서 액상소석회를 분사하여 연소가스에 포함된 산가스, Sox, Cl 등의 황화합물이 제거되고, 필터부(420)에서 폐기물의 연소시 발생되는 재와 같은 미세먼지 등이 필티링된다. 이때, 연소가스에 포함된 황화합물이 황화합물 저감부재(300)에서 약70%이상 저감된 후에 가스정화부재(400)에서 처리되므로, 소석회의 사용을 최소화시킬 수 있다. 즉, 소석회의 사용이 최소화됨에 따라 소석회 사용에 의한 고형물의 발생도 최소화될 수 있어서, 고형물을 청소하기 위한 청소작업을 자주하지 않아도 되고 고형물을 처리하는 비용도 최소화시킬 수 있다. The gas purifying member 400 is provided with the combustion gas discharged from the sulfur compound reducing member 300 to be cleaned and treated, and to filter the foreign substances and discharge them into the atmosphere. The gas purifying member 400 may be provided with a cleaning tower 410 for receiving and cleaning the combustion gas discharged from the abatement member 300, and a filter unit 420 for filtering the cleaned combustion gas discharged from the cleaning tower 410. ). The gas purifying member 400 is sprayed with liquid lime in the cleaning tower 410 to remove sulfur compounds such as acid gas, Sox and Cl contained in the combustion gas, and is generated when the waste is burned in the filter unit 420. Fine dust such as ash is filtered out. At this time, since the sulfur compound contained in the combustion gas is processed by the gas purifying member 400 after being reduced by about 70% or more in the sulfur compound reducing member 300, it is possible to minimize the use of slaked lime. That is, as the use of slaked lime is minimized, the generation of solids by using slaked lime can also be minimized, so that the cleaning work for cleaning the solid does not have to be frequently performed and the cost of processing the solid can be minimized.

이하, 본 발명의 실시예에 따른 작용 및 효과를 설명한다. Hereinafter, the operation and effect according to the embodiment of the present invention will be described.

폐기물 소각로(100)에서는 폐기물이 소각됨에 따라 섭씨800~1,200도의 연소가스가 배출되고, 열교환보일러(200)에서는 폐기물 소각로(100)에서 발생된 섭씨800~1,200도의 연소가스를 물과 열교환시킨다. 따라서, 연소가스는 섭씨200~400도의 온도로 낮아지게 된다. The waste incinerator 100 discharges combustion gas of 800 to 1,200 degrees Celsius as the waste is incinerated, and the heat exchange boiler 200 heats the combustion gas of 800 to 1,200 degrees Celsius generated in the waste incinerator 100 with water. Therefore, the combustion gas is lowered to a temperature of 200 ~ 400 degrees Celsius.

열교환부일러(200)에서 배출되는 연소가스가 연소가스유입덕트(310)를 통해 저감챔버(330)로 유입되면 안개노즐(320)에서 안개형태로 황화합저감물이 분사된다. 이때, 황화합저감물이 연소가스에 혼합되어서 반응되므로 황화합물이 저감된다. When the combustion gas discharged from the heat exchange unit 200 is introduced into the reduction chamber 330 through the combustion gas inlet duct 310, the sulfur sulfide reduction material is injected in the mist form from the mist nozzle 320. At this time, the sulfur compound is reacted by being mixed with the combustion gas, sulfur compounds are reduced.

더욱 상세하게는, 안개노즐(320)에서 안개형태로 분사되는 황화합저감물이 연소가스에 혼합되므로, 연소가스에 포함된 Hcl, cl, Sox 등의 황화합물이 반응하여 저감된다. 이때, 연소가스가 섭씨 230~240도의 온도이므로 안개형태로 분사되는 황화합저감물이 혼합되어 전체적인 온도가 대략 섭씨 5~10도의 온도가 저감되어도 섭씨 220~230도의 온도를 유지하게 된다. 이러한, 고온의 연소가스에 의해 황화합저감물의 반응으로 생성된 반응물이 생성 즉시 증기화되어 고형의 고형물이 발생되는 것을 방지할 수 있게 된다. More specifically, since the sulfur sulfide reducing material injected in the mist form from the mist nozzle 320 is mixed with the combustion gas, sulfur compounds such as Hcl, cl, Sox, etc. contained in the combustion gas are reacted and reduced. At this time, since the combustion gas is a temperature of 230 ~ 240 degrees Celsius, the sulfide mixture sprayed in the form of a mist is mixed to maintain a temperature of 220 ~ 230 degrees Celsius even if the overall temperature is reduced approximately 5 ~ 10 degrees Celsius. Such, the reactants produced by the reaction of the sulfide-reduced by the high temperature combustion gas is vaporized immediately upon production to prevent the generation of solid solids.

그리고, 가스정화부재(400)에서는 연소가스에 포함된 황화합물을 저감시키기 위해 액상소석회를 분사하는데, 저감챔버(330)에서 미처리된 연소가스의 황화합물이 처리되므로 소석회의 사용량을 최소로 줄일 수 있다. In addition, the gas purification member 400 injects liquid slaked lime to reduce sulfur compounds contained in the combustion gas. Since the sulfur compounds of the untreated combustion gas are treated in the reduction chamber 330, the amount of slaked lime can be reduced to a minimum.

이와 같이, 가스정화부재(400)에서도 황화합물이 처리되므로 전체적인 황화합물의 저감정도가 현저하게 증대될 수 있다. As such, since the sulfur compound is also treated in the gas purifying member 400, the reduction degree of the overall sulfur compound may be significantly increased.

이와 같이, 본 발명에 의해 폐액이 소각되면서 연소가스 및 악취도 저감되고, 폐기물 소각로의 연소가스에 포함된 황화합물을 저감시키므로, 폐기물 소각로용 황화합물 저감장치에 널리 적용되어서 사용될 수 있는 매우 유용한 발명이라 할 수 있다. As described above, as the waste liquid is incinerated, the combustion gas and the odor are also reduced, and the sulfur compound contained in the combustion gas of the waste incinerator is reduced. Therefore, the present invention is a very useful invention that can be widely applied to the sulfur compound reduction apparatus for waste incinerators. Can be.

본 발명이 속하는 기술분야의 당업자는 본 발명이 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예는 모든 면에서 예시적인 것이며 한정적인 것이 아닌 것으로서 이해되어야 하고, 본 발명의 범위는 상세한 설명보다는 후술하는 청구범위에 의하여 나타내어지며, 특허청구범위의 의의 및 범위 그리고 그 등가개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and their equivalents. All changes or modifications derived from the concept should be construed as being included in the scope of the present invention.

100 : 폐기물 소각로 110 : 메인소각로
120 : 보조소각로 200 : 열교환보일러
300 : 황화합물 저감부재 310 : 연소가스유입덕트
320 : 안개노즐 330 : 저감챔버
340 : 연소가스배출덕트 331 : 호퍼
332 : 드레인 400 : 가스정화부재
410 : 세정탑 420 : 필터부100: waste incinerator 110: main incinerator
120: auxiliary incinerator 200: heat exchange boiler
300: sulfur compound reducing member 310: combustion gas inlet duct
320: fog nozzle 330: reduction chamber
340: combustion gas discharge duct 331: hopper
332: drain 400: gas purifying member
410: washing tower 420: filter unit

Claims (5)

외부로부터 공급되는 폐기물을 점화장치를 이용하여 소각하는 폐기물 소각로(100)와,
폐기물 소각로(100)로부터 폐기물 소각에 의해 발생되는 연소가스를 제공받아 내부의 물을 열교환방식으로 가열하여 연소가스의 온도를 낮추고, 물의 온도를 높여 고온의 물을 생성하는 열교환보일러(200)와,
열교환보일러(200)를 거쳐서 공급되는 연소가스에 황화합저감물을 안개형상으로 분무시켜 연소가스에 포함된 황화합물이 황화합저감물과 반응하여 기화되어서 저감되는 황화합물 저감부재(300)와,
황화합물 저감부재(300)에서 배출되는 연소가스를 제공받아 세정하여 처리하고 이물질을 필터링하여 대기중으로 배출시키는 가스정화부재(400)를 포함하고,
황화합물 저감부재(300)는
열교환보일러(200)에 연결되어 연소가스가 관류되는 연소가스유입덕트(310)와,
연소가스유입덕트(310)를 통해 배출되는 연소가스에 황화합저감물을 안개형태로 분사하는 안개노즐(320)과,
연소가스유입덕트(310)에서 배출되는 연소가스에 안개노즐(320)에서 분사되는 황화합저감물이 혼합되는 공간이 제공되어, 연소가스에 포함된 황화합물이 안개형태로 제공되는 황화합저감물에 기상상태로 반응되어서 저감되는 황화합물 저감챔버(330)와,
황화합물 저감챔버(330)에서 황화합물이 저감된 연소가스를 가스정화부재(400)로 배출시키는 연소가스배출덕트(340)를 포함하며,
연소가스덕트(310)가 황화합물 저감챔버(330)에 연통되고,
안개노즐(320)은 연소가스덕트(310)의 둘레를 따라 분산되는 상태로 황화합물 저감챔버(330)에 설치되며,
황화합물 저감챔버(330)에는
연소가스유입덕트(310)가 일측에서 측방으로 연통되게 설치되고,
연소가스배출덕트(340)가 타측에서 상방으로 연통되게 설치되며,
연소가스유입덕트(310)에서 연소가스배출덕트(340)로 이동하는 연소가스에 포함된 고형물을 모으기 위한 호퍼(331)가 연소가스배출덕트(340)의 직하부에 위치되는 상태로 바닥에 설치되는 것을 특징으로 하는 황화합물 저감장치.
Waste incinerator 100 to incinerate waste supplied from the outside using an ignition device,
A heat exchange boiler 200 which receives the combustion gas generated by the waste incineration from the waste incinerator 100 and heats the water in the heat exchange method to lower the temperature of the combustion gas and increases the temperature of the water to generate hot water;
A sulfur compound reducing member 300 which sprays a sulfur sulfide reducing substance into a fog shape on a combustion gas supplied through a heat exchange boiler 200 to react with the sulfide reducing substance to vaporize and reduce the sulfur compound contained therein;
It includes a gas purifying member 400 for receiving and cleaning the combustion gas discharged from the sulfur compound reducing member 300, and filters and discharges the foreign matter to the atmosphere,
Sulfur compound reducing member 300 is
Combustion gas inlet duct 310 is connected to the heat exchange boiler 200 and the combustion gas flows through,
Fog nozzle 320 for spraying the sulfur sulfide reduction material in the form of a mist on the combustion gas discharged through the combustion gas inlet duct 310,
The combustion gas discharged from the combustion gas inlet duct 310 is provided with a space in which the sulfide mixture injected from the mist nozzle 320 is mixed, so that sulfur compounds contained in the combustion gas are provided in the form of mist in the sulfide reduction material. Sulfur compound reduction chamber 330 is reduced by reaction in the gaseous state,
In the sulfur compound reduction chamber 330 includes a combustion gas discharge duct 340 for discharging the combustion gas of the sulfur compound is reduced to the gas purification member 400,
Combustion gas duct 310 is in communication with the sulfur compound reduction chamber 330,
The fog nozzle 320 is installed in the sulfur compound reduction chamber 330 in a state dispersed along the circumference of the combustion gas duct 310,
Sulfur compound reduction chamber 330
Combustion gas inlet duct 310 is installed in communication with the side from one side,
Combustion gas discharge duct 340 is installed in communication with the other side upwards,
Hopper 331 for collecting the solids contained in the combustion gas moving from the combustion gas inlet duct 310 to the combustion gas discharge duct 340 is installed on the floor in a state directly below the combustion gas discharge duct 340. Sulfur compound reduction device characterized in that the.
삭제delete 삭제delete 삭제delete 청구항 1에 있어서, 황화합저감물은 가성소다 0.1~0.5 중량%와 물 99.5~99.9 중량%가 혼합되어 이루어지는 것을 특징으로 하는 황화합물 저감장치.The sulfur compound reducing device according to claim 1, wherein the sulfur sulfide reducing material comprises 0.1 to 0.5 wt% of caustic soda and 99.5 to 99.9 wt% of water.
KR1020190056247A 2019-05-14 2019-05-14 Sulfur compounds abatement apparatus for waste burning furnace KR102087776B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101568117B1 (en) * 2015-07-03 2015-11-10 신대원보일러 주식회사 Wastewater evaporator for liquid waste incineration apparatus
KR20180106259A (en) * 2017-03-18 2018-10-01 주식회사 혜천산업 Semi dry reactor enhancing SOx removal efficiency by improving a gas flow pattern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101568117B1 (en) * 2015-07-03 2015-11-10 신대원보일러 주식회사 Wastewater evaporator for liquid waste incineration apparatus
KR20180106259A (en) * 2017-03-18 2018-10-01 주식회사 혜천산업 Semi dry reactor enhancing SOx removal efficiency by improving a gas flow pattern

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