KR0151872B1 - Incinerators containing heat storage media - Google Patents
Incinerators containing heat storage mediaInfo
- Publication number
- KR0151872B1 KR0151872B1 KR1019940025306A KR19940025306A KR0151872B1 KR 0151872 B1 KR0151872 B1 KR 0151872B1 KR 1019940025306 A KR1019940025306 A KR 1019940025306A KR 19940025306 A KR19940025306 A KR 19940025306A KR 0151872 B1 KR0151872 B1 KR 0151872B1
- Authority
- KR
- South Korea
- Prior art keywords
- heat storage
- storage medium
- incinerator
- waste
- present
- Prior art date
Links
- 238000005338 heat storage Methods 0.000 title claims abstract description 65
- 239000002699 waste material Substances 0.000 claims abstract description 47
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 14
- 239000007789 gas Substances 0.000 abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- -1 steam Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
폐기물을 연소시키는 소각로내에 축열매체를 충진한 폐기물 소각로를 사용하여 폐기물을 소각할 경우 폐기물의 부하변동에 따른 소각로내 온도변화가 최소화되고 안정적인 소각이 가능하여 연소효율이 향상되고 배기가스의 오염도가 감소된다.Incineration of wastes using a waste incinerator filled with heat storage medium in an incinerator that burns waste minimizes temperature changes in the incinerator according to load changes of the waste and enables stable incineration to improve combustion efficiency and reduce pollution of exhaust gases. do.
Description
제1도는 본 발명의 일실시예인 고정상 축열매체를 갖는 소각로의 개략적인 단면도이고,1 is a schematic cross-sectional view of an incinerator having a fixed bed heat storage medium according to an embodiment of the present invention,
제2도는 본 발명의 또 다른 일실시예인 중력식 이동상 축열매체를 갖는 소각로의 개략적인 단면도이고,2 is a schematic cross-sectional view of an incinerator having a gravity mobile phase heat storage medium as another embodiment of the present invention.
제3도는 본 발명의 또 다른 일실시예인 강제이송식 이동상 축열매체를 갖는 소각로의 개략적인 단면도이다.3 is a schematic cross-sectional view of an incinerator having a forced transfer mobile phase heat storage medium according to another embodiment of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 축열매체조 3 : 축열매체층1: heat storage medium tank 3: heat storage medium layer
5 : 폐기물 11 : 폐기물 투입구5: waste 11: waste inlet
13 : 축열매체 취출장치 15 : 축열매체 투입구13: heat storage medium extraction device 15: heat storage medium inlet
[산업상 이용분야][Industrial use]
본 발명은 소각로에 관한 것으로서, 더욱 상세하게는 축열매체를 이용하여 안정적인 운전이 가능하고 연소효율이 향상된 폐기물 소각로에 관한 것이다.The present invention relates to an incinerator, and more particularly, to a waste incinerator capable of stable operation using a heat storage medium and improved combustion efficiency.
[종래 기술][Prior art]
고형 폐기물 또는 폐수 처리후의 슬러지 등을 최종 처리하기 위한 폐기물 처리 방법으로는 매립, 소각, 분쇄 후 지장산포, 퇴비화 등이 알려져 있다. 이와 같은 폐기물 처리방법 중 소각법은 가연성 폐기물을 소각시켜 유기물을 구성하고 있는 탄소, 수소, 질소, 무기물 등을 탄산가스, 수증기, 질소가스 등의 기체와 소량의 재로 분해하는 방법이다. 이와 같은 소각로로서 지금까지 개발된 것으로는 고정화격자로 및 가동화격자로를 포함하는 화격자연소방식로; 고정상, 회전로상, 다단로상, 로타리킬른 등을 포함하는 상연소방식로; 유동방식시로; 부유연소방식로; 분무연소방식 등이 알려져 있다.Waste treatment methods for the final treatment of solid waste or sludge after waste water treatment are known to be landfilled, incinerated, scattered after crushing, and composting. The incineration method of the waste treatment method is to incinerate flammable waste to decompose carbon, hydrogen, nitrogen, inorganic matters, etc., which constitute organic matter, into gases such as carbon dioxide, water vapor, nitrogen gas, and a small amount of ash. Such incinerators have been developed so far, such as a natural grate furnace, including a fixed grate furnace and a movable grate furnace; Normal combustion furnace including stationary bed, rotary furnace bed, multi-stage furnace bed, rotary kiln, etc .; Flow mode; Floating combustion method; Spray combustion methods and the like are known.
이와 같은 폐기물의 소각방법은 주성분의 대부분이 기체로 되고 대지중에 폐기가 되기 때문에 감량효과가 크고, 반응속도가 크므로 처리효율이 높고, 병원균 등은 산화분해되기 때문에 위생적이고, 에너지 회수가 가능하다는 잇점 때문에 쓰레기 처리기술로서 중요한 지위를 차지하고 있다. 그러나 이와 같은 소각로를 이용한 폐기물의 처리방법은 폐기물의 불완전연소와 폐기물의 부하량 변동에 따른 소각로의 온도 변화에 의해 소각로의 안정적인 운전이 곤란하다는 문제점이 있다.This method of incineration of wastes has a large weight reduction effect because most of the main components are gaseous and disposed of on the ground, and the treatment efficiency is high because the reaction rate is high. Because of its advantages, it occupies an important position as a waste disposal technology. However, the waste treatment method using such an incinerator has a problem that stable operation of the incinerator is difficult due to incomplete combustion of the waste and temperature change of the incinerator according to the load change of the waste.
이와 같은 문제점을 해결하기 위하여 폐기물의 양이 적어 충분한 연소가 일어나지 않을 경우 보조연료를 사용하여 소각로내의 온도를 일정하게 유지하는 방법을 사용하고 있다. 그러나 이와 같은 방법 역시 폐기물이 양이 적어 소각로내의 연소 온도가 낮아질 경우 이를 감지하여 보조연료를 공급하는데 있어서, 그 되먹임(feedback)이 시간차를 두고 일어나 소각로내에서 일정한 온도를 계속적으로 유지하는데는 한계가 있다.In order to solve such a problem, when the amount of waste is small and sufficient combustion does not occur, a method of maintaining a constant temperature in an incinerator using auxiliary fuel is used. However, this method also has a limitation in detecting a low amount of waste when the combustion temperature in the incinerator is lowered and supplying supplementary fuel. have.
[본 발명이 해결하려는 과제][PROBLEMS TO BE SOLVED BY THE INVENTION]
본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서 본 발명의 목적은 첫째 폐기물의 부하변동시에도 소각로내 온도를 안정적으로 유지할 수 있는 폐기물 소각로를 제공하고, 둘째 소각로에 비하여 연소효율이 높아 미연분의 배출이 적은 저공해형 폐기물 소각로를 제공하고, 세째 NOx 등과 같은 오염물질의 생성을 추가적으로 억제할 수 있는 폐기물 소각로를 제공하는 것을 목적으로 한다.The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to provide a waste incinerator that can stably maintain the temperature in the incinerator even when the load of the waste changes, and the combustion efficiency compared to the second incinerator The purpose of this is to provide a low pollution type waste incinerator with low emissions of unburnt and to provide a waste incinerator which can further suppress the generation of pollutants such as NOx.
또 본 발명의 폐기물 소각로는 폐기물 부하 변동시에도 소각로내의 온도제어가 용이할 뿐만 아니라, 기계적 구동부분의 추가적인 설치 없이 본 발명의 목적을 달성할 수 있기 때문에 제작비 및 설치비가 저렴하고 유지보수가 간편하며, 기계적인 고장율이 낮은 폐기물 소각로를 제공한다.In addition, the waste incinerator of the present invention is not only easy to control the temperature in the incinerator even when the load of the waste changes, it is possible to achieve the object of the present invention without additional installation of the mechanical drive part, so the production cost and installation cost is low, and the maintenance is easy For example, waste incinerators with low mechanical failure rates are provided.
그리고 소각로 정지 후 재가동시 정상가동이 빠르며 액상, 고상 및 고함수율의 다양한 소각물에도 건조 및 혼소가 용이한 폐기물 소각로를 제공한다.And when the incinerator is stopped and restarted, it operates quickly and provides waste incinerators that are easy to dry and mix even in various types of incineration liquid, solid and high water content.
[과제를 해결하기 위한 수단][Means for solving the problem]
본 발명은 상기와 같은 목적을 달성하기 위하여 폐기물을 연소시키는 폐기물 소각로에 있어서, 상기한 소각로 내에 축열물질을 포함하는 것을 특징으로 하는 폐기물 소각로를 제공한다.The present invention provides a waste incinerator, wherein the waste incinerator for burning the waste in order to achieve the above object, comprising a heat storage material in the incinerator.
상기한 본 발명에 있어서, 상기한 축열매체는 비열이 0.2 Kcal/kg ℃이상, 하중연화점이 2kg 하중에서 1500℃이상, 열팽창율이 100℃ 1%이하, 열충격저항이 30회 (DIN) 이상인 것이 바람직하다.In the present invention, the heat storage medium has a specific heat of at least 0.2 Kcal / kg ° C, a load softening point of at least 1500 ° C at a load of 2 kg, a thermal expansion rate of 100 ° C of 1% or less, and a thermal shock resistance of 30 times (DIN) or more. desirable.
또 상기한 본 발명에 있어서, 상기한 축열매체의 상당 직경은 3 내지 10cm인 것이 바람직하다. 그리고 상기한 축열매체는 겉보기 밀도 1.5내지 3.0kg/㎤, 기공율 8 내지 20%, 압축강도 1000kg/㎠ 이상인 것이 바람직하다.In the present invention described above, it is preferable that the equivalent diameter of the heat storage medium is 3 to 10 cm. The heat storage medium preferably has an apparent density of 1.5 to 3.0 kg / cm 3, a porosity of 8 to 20%, and a compressive strength of 1000 kg / cm 2 or more.
또 상기한 본 발명에서 상기한 축열매체는 Al2O350 내지 95중량 %, SiO25내지 20 중량%, Fe2O3 0.5내지 3중량 %를 포함하는 축열매체를 사용하는 것이 바람직하다.In addition, in the present invention, the heat storage medium may include 50 to 95 weight% of Al 2 O 3 , 5 to 20 weight% of SiO 2 , and 0.5 to 3 weight% of Fe 2 O 3 .
[작용][Action]
본 발명에서와 같이 축열매체를 포함한 소각로는 종래의 소각로가 부하변동에 안정적으로 대처하지 못하는 것을 해결한 것으로서, 열용량이 큰 정형 또는 부정형의 축열매체를 소각로의 충전하여 축열매체가 가지고 있는 큰 축열량과 전열면적 때문에 폐기물의 부하변동에 따른 소각로내 온도 변화가 최소화되며 안정적인 소각이 가능하여 연소효율이 향상되고 대기 오염물질 성분을 적게 함유한 배기가스를 방출하여 대기오염을 감소시킬 수 있다.As in the present invention, the incinerator including a heat storage medium solves the problem that the conventional incinerator does not stably cope with load fluctuations. Due to the overheating area, the temperature change in the incinerator due to the load change of the waste is minimized, and the stable incineration is possible, which improves the combustion efficiency and reduces the air pollution by releasing exhaust gas containing less air pollutant.
본 발명에서 축열매체는 고온의 소각로에서 사용할 때 단지 고열의 작용을 받을 뿐만 아니라, 고온에서 연소가스, 증기, 연료의 회분광재, 비산하고 있는 분진, 용융체, 고체 등과 접촉하기 때문에 매체의 표면이나 침투 부분에서 화합반응에 의한 변질이나 침식작용을 받지 않아야 한다.In the present invention, the heat storage medium is not only subjected to high heat when used in a high temperature incinerator, but also comes into contact with combustion gases, steam, fuel ash ash, scattering dust, molten material, solids, etc. at high temperatures, and thus penetrates the surface of the medium. The parts shall not be subjected to deterioration or erosion by chemical reactions.
특히 본 발명의 축열매체는 철분의 함유량이 3 중량 %이하인 것이 바람직하다. 축열매체의 금속철 내지 산화철의 양이 상기한 3 중량 %를 초과할 경우에는 400 내지 800℃에서 CO 가스와 하기와 같은 반응에 의해 침적 및 탄화철을 생성하여 축열매체 조직의 붕괴가 일어날 수 있다.In particular, the heat storage medium of the present invention preferably has an iron content of 3% by weight or less. When the amount of metal iron to iron oxide in the heat storage medium exceeds 3% by weight, deposition and iron carbide may be generated by the reaction as described below with CO gas at 400 to 800 ° C. to cause collapse of the heat storage medium structure.
3 Fe + 2 CO Fe3C + CO₂3 Fe + 2 CO Fe 3 C + CO₂
3 Fe2O3+ 9 CO 6 Fe + 9 CO2+ 4CO3 Fe 2 O 3 + 9 CO 6 Fe + 9 CO 2 + 4CO
2 Fe3C + 2 CO2 2 Fe 3 C + 2 CO 2
또 본 발명에 있어서 소각로내의 온도는 1200℃ 이하로 유지하는 것이 내충격성이 불량해지는 문제점이 있다.In addition, in the present invention, maintaining the temperature in the incinerator at 1200 ° C. or less has a problem in that impact resistance is poor.
또 상기한 본 발명에 있어서, 상기한 축열매체의 직경은 충전하였을 때 공기 또는 연소가스와의 접촉에 의한 압력손실 및 전열량이 전열면적에 비례하는 것을 고려하여 결정하여야 하며 직경이 3 내지 10cm인 것이 바람직하다.In the present invention described above, the diameter of the heat storage medium should be determined in consideration of the pressure loss and heat transfer amount due to contact with air or combustion gas in proportion to the heat transfer area, and the diameter is 3 to 10 cm. It is preferable.
상기한 축열매체는 겉보기 밀도 1.5내지 3.0kg/㎠, 기공율 8 내지 20% 압축강도 1000kg/㎠ 이상인 것이 바람직하다.The heat storage medium preferably has an apparent density of 1.5 to 3.0 kg / cm 2, porosity of 8 to 20%, and a compressive strength of 1000 kg / cm 2 or more.
또 상기한 축열매체는 정육면체, 원통형 또는 부정형인 것을 사용할 수 있다.In addition, the heat storage medium may be a cube, a cylindrical shape or an irregular shape.
상기한 축열매체는 가능한한 많은 열을 축열하여야 함으로 열용량이 큰것이 바람직하며, 비열이 0.2Kcal/Kg ℃ 이상인 것이 바람직하고, 또 본 발명의 축열매체는 어느 일정한 하중 밑에서 연화현상이 일어나는 온도인 하중연화점이 2Kg 하중에서 1500℃ 이상인 것이 바람직하며, 본 발명의 축열매체는 열팽창율이 적으면서 저온에서 고온에 이르기까지 단조롭게 증가하고 이상성을 나타내지 않아야 하며 바람직하게는 1000℃에서 1%이하가 바람직하고, 본 발명의 축열매체는 표면에 급격하고도 가혹한 온도변화에 의해서 파괴되거나 박리하지 않아야 하며 열출격저항이 30 회(DIN)이상인 것이 바람직하다.It is preferable that the heat storage medium has a large heat capacity because it needs to heat up as much heat as possible, and the specific heat is preferably 0.2Kcal / Kg ° C. or higher, and the heat storage medium of the present invention has a load at which a softening phenomenon occurs under a certain load. It is preferable that the softening point is 1500 ° C. or higher at a load of 2 Kg, and the heat storage medium of the present invention has a low thermal expansion rate, monotonically increases from low temperature to high temperature, and does not show ideality, preferably 1% or less at 1000 ° C., The heat storage medium of the present invention should not be destroyed or peeled off due to the rapid and severe temperature change on the surface, and it is preferable that the heat shunt resistance is 30 times (DIN) or more.
[실시예]EXAMPLE
이하 본 발명의 바람직한 실시예를 기재한다. 그러나 하기산 실시예는 본 발명을 설명하기 위한 본 발명의 바람직한 일실시예일 뿐 본 발명의 하기한 실시예에 한정되는 것은 아니다.Hereinafter, preferred embodiments of the present invention will be described. However, the following acid examples are only preferred embodiments of the present invention for explaining the present invention, and are not limited to the following examples of the present invention.
제1도의 소각로는 축열매체를 고정시킨 고정상 축열매체 소각로로서 폐기물(5)의 상부의 배가스 출구부분에 축열매체(1)을 충전시킨 축열매체층(3)을 형성하여 배가스가 충전매체층(3)을 통과할 때 배가스에 포함된 분진이 일부 제거되며 난류가 형성되어 연소효율이 향상된다. 축열매체층(3)이 상부(9)는 축열매체(1)에 축적된 열에 의해 폐기물의 부하변동에서도 안정적인 고온의 분위기를 유지할 수 있어 폐기물 상부(7)에 불환전연소된 채로 방출된 가스가 축열매체층(3)을 통과하여 축열매체층(3)의 상부(9)에서 완전연소가 가능하며 소각로 정지 후 재가동시에도 정상가동을 위한 로내 분위기의 안정화가 빠르다. 축열매체가 설치된 축열매체층(3)의 두께는 필요한 축열량에 따라 결정하며 축열매체(1)의 크기는 3 내지 10cm의 것을 사용할 수 있다. 또 폐기물(5)의 종류에 따라 축열매체(1)에 촉매를 함유하여 NOxSOx 등 일부 특정 배가스를 선택적으로 제거할 수 있으며, CO2/CO전환율을 향상시킬수 있는 촉매형 축열매체를 사용할 수도 있다.The incinerator of FIG. 1 is a fixed bed heat storage medium incinerator in which the heat storage medium is fixed, and a heat storage medium layer 3 filled with the heat storage medium 1 is formed in the exhaust gas outlet portion of the upper part of the waste 5 so that the exhaust gas is filled with the charge medium layer 3. When passing through), some of the dust contained in the flue-gas is removed and turbulence is formed, which improves combustion efficiency. The top 9 of the heat storage medium layer 3 is able to maintain a stable high temperature atmosphere even under load fluctuations of waste due to heat accumulated in the heat storage medium 1, so that the gas discharged while being uninterrupted and burned in the top of the waste 7 Complete combustion is possible at the upper portion 9 of the heat storage medium layer 3 through the heat storage medium layer 3, and the stabilization of the atmosphere in the furnace for normal operation is fast even when the incinerator is stopped and restarted. The thickness of the heat storage medium layer 3 in which the heat storage medium is installed is determined according to the required heat storage amount, and the size of the heat storage medium 1 may be 3 to 10 cm. In addition, depending on the type of waste 5, the heat storage medium 1 may contain a catalyst to selectively remove some specific flue gases such as NOxSOx, and a catalyst type heat storage medium capable of improving CO 2 / CO conversion may be used.
제2도의 소각로는 축열매체를 중력으로 이동시키는 이동상 축열매체 소각로로서 축열매체(1)을 로상의 경사부 상에 충전하고 중력에 의해 이동하는 매체위에 폐기물(50)를 투여하여 폐기물을 이송, 소각시키는 소각로이다. 폐기문(5)의 로내 체류시간에 영향을 미치는 축열매체의 이동속도는 폐기물의 종류에 따라 조절이 가능하며 플라스틱 등 용융물이 로상에 부착되는 것을 방지하기 위해서 축열매체층의 두께는 약 60 내지 100cm 종도로 할 수 있다. 연소공기는 축열매체는 하부로부터 로상으로 주입되며 축열매체를 통과하면서 불규치한 난류를 형성하고 로내에 골고루 분산되어 연소효율을 극대화시킬수 있다. 소각이 진행되면서 불연물은 재 및 축열매체 취출장치(13)에 의해 축열매체와 같이 소각로 밖으로 배출된 후 재분리 장치에 의해 분리된다. 한편 분리된 축열매체는 로상부의 축열매체 투입구로 순환되고 축열매체는 온도 유지를 위해서 로하부에서 불어올려지는 공기는 예열공기를 사용하거나 배가스 중일부룰 순환하여 고온을 유지한다. 이와 같은 방식은 폐기물을 이송, 교반, 소각시키는데 따른 축열매체의 축열에 의해 로내 고온을 유지할 수 있어 재가동이 용이하다.The incinerator of FIG. 2 is a mobile phase heat storage medium incinerator for moving the heat storage medium by gravity, filling the heat storage medium 1 on the inclined portion of the furnace, and discharging waste by injecting the waste 50 onto the medium moving by gravity. It is an incinerator. The movement speed of the heat storage medium affecting the residence time of the waste door 5 can be adjusted according to the type of waste, and the thickness of the heat storage medium layer is about 60 to 100 cm to prevent the melt such as plastic from adhering to the furnace. You can do this with a seed. Combustion air is injected into the furnace from the bottom and the heat storage medium passes through the heat storage medium to form irregular turbulence and is evenly distributed in the furnace to maximize combustion efficiency. As the incineration proceeds, the incombustibles are discharged out of the incinerator like the heat storage medium by the ash and the heat storage medium extraction device 13, and then separated by the re-separation device. Meanwhile, the separated heat storage medium is circulated to the heat storage medium inlet of the upper part of the furnace, and the air that is blown up from the lower part of the heat storage medium maintains the high temperature by using preheating air or circulating part of the exhaust gas. In this manner, the high temperature in the furnace can be maintained by the heat storage of the heat storage medium caused by the transfer, stirring, and incineration of the waste, and thus it is easy to restart.
제3도의 소각로는 축열매체를 강제로 이동시키는 이동상 축열매체 소각로로서 축열매체(1)가 무한궤도차(17)에 의해 이동되면서 폐기물을 이송, 소각시키는 방식이다. 폐기물(5)의 로내 체류시간은 무한궤도차에 의해 조절되며 무한궤도차의 하부로 주입되는 연소공기에 대해 충분한 축열효과를 가질 수 있도록 60 내지 100cm 를 유지한다. 재 및 축열매체의 분리 장치 및 이송장치는 제2도에 도시한 중력식 이동장치와 동일하다.The incinerator of FIG. 3 is a mobile phase heat storage medium incinerator for forcibly moving the heat storage medium. The heat storage medium 1 is transported and incinerated while the heat storage medium 1 is moved by the endless track 17. The residence time of the waste 5 is controlled by the caterpillar difference and maintains 60 to 100 cm to have sufficient heat storage effect on the combustion air injected into the lower portion of the caterpillar difference. The device for separating and conveying the ash and the heat storage medium is the same as the gravity moving device shown in FIG.
[효과][effect]
상기한 바와 같은 본 발명의 축열매체를 갖는 소각로를 사용하여 폐기물을 소각할 경우 폐기물이 부하변동에 따른 소각로내 온도변화가 최소화되고 안정적인 소각이 가능한여 연소효율이 향상되고 배기가스의 오염도가 감소된다. 또한 본 발명에서와 같은 충전매체를 이용한 폐기물 소각로는 종래의 소각로에 비하여 추가적인 제작비 및 설치비가 비교적 저렴하고 고장율이 낮다.When the waste is incinerated using the incinerator having the heat storage medium of the present invention as described above, the temperature change in the incinerator according to the load fluctuation is minimized and the stable incineration is possible, thereby improving the combustion efficiency and reducing the pollution of the exhaust gas. . In addition, the waste incinerator using the filling medium as in the present invention has a relatively low additional production cost and installation cost and lower failure rate than the conventional incinerator.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940025306A KR0151872B1 (en) | 1994-10-04 | 1994-10-04 | Incinerators containing heat storage media |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940025306A KR0151872B1 (en) | 1994-10-04 | 1994-10-04 | Incinerators containing heat storage media |
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| Publication Number | Publication Date |
|---|---|
| KR960014759A KR960014759A (en) | 1996-05-22 |
| KR0151872B1 true KR0151872B1 (en) | 1998-10-01 |
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| KR1019940025306A KR0151872B1 (en) | 1994-10-04 | 1994-10-04 | Incinerators containing heat storage media |
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| KR (1) | KR0151872B1 (en) |
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