JP2003106506A - Method for recycling organic waste, and melting and fractionating device - Google Patents
Method for recycling organic waste, and melting and fractionating deviceInfo
- Publication number
- JP2003106506A JP2003106506A JP2001301998A JP2001301998A JP2003106506A JP 2003106506 A JP2003106506 A JP 2003106506A JP 2001301998 A JP2001301998 A JP 2001301998A JP 2001301998 A JP2001301998 A JP 2001301998A JP 2003106506 A JP2003106506 A JP 2003106506A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- high temperature
- melting furnace
- dust collector
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002844 melting Methods 0.000 title claims abstract description 47
- 230000008018 melting Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004064 recycling Methods 0.000 title claims description 12
- 239000010815 organic waste Substances 0.000 title claims description 10
- 239000000428 dust Substances 0.000 claims abstract description 67
- 239000002893 slag Substances 0.000 claims abstract description 28
- 238000009835 boiling Methods 0.000 claims abstract description 13
- 239000002699 waste material Substances 0.000 claims abstract description 13
- 238000005338 heat storage Methods 0.000 claims abstract description 8
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000011946 reduction process Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 38
- 150000002736 metal compounds Chemical class 0.000 abstract description 21
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 16
- 239000010802 sludge Substances 0.000 abstract description 16
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000002440 industrial waste Substances 0.000 abstract description 4
- 239000005416 organic matter Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000007792 gaseous phase Substances 0.000 abstract 1
- 238000013508 migration Methods 0.000 abstract 1
- 230000005012 migration Effects 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 238000009877 rendering Methods 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 description 9
- 239000003570 air Substances 0.000 description 8
- 239000004035 construction material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 2
- 102100033029 Carbonic anhydrase-related protein 11 Human genes 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 101000867841 Homo sapiens Carbonic anhydrase-related protein 11 Proteins 0.000 description 2
- 101001075218 Homo sapiens Gastrokine-1 Proteins 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 101150000715 DA18 gene Proteins 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229940065285 cadmium compound Drugs 0.000 description 1
- 150000001662 cadmium compounds Chemical class 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229910021654 trace metal Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Gasification And Melting Of Waste (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Treatment Of Sludge (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Chimneys And Flues (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、有機性廃棄物の
再資源化方法及び装置に関するもので、特に産業廃棄物
として扱われている有機分（可燃分）を含む廃棄物の処
理及び再資源化を図る方法及び装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for recycling organic waste, and particularly to the treatment and recycling of waste containing organic matter (combustible matter) treated as industrial waste. The present invention relates to a method and an apparatus for achieving the same.
【０００２】[0002]
【従来の技術】廃棄物の減量化と資源の有効利用は、環
境保全と経済活動とが調和した持続可能な循環型社会の
構築のため必要であり、その実現が強く求められてい
る。しかしながら、排出量の現状は程遠く、特に産業廃
棄物は社会情勢の変化にもかかわらず毎年ほぼ４億トン
が排出されており、浄化槽汚泥、動植物性残渣、動物糞
尿などの有機汚泥が全排出量の７０％を占めている。2. Description of the Related Art Reduction of waste and effective use of resources are necessary for the construction of a sustainable recycling society in which environmental protection and economic activities are in harmony, and the realization thereof is strongly required. However, the amount of emissions is far from present, and almost 400 million tons of industrial waste are emitted each year despite changes in social conditions, and the total amount of organic sludge such as septic tank sludge, animal and plant residues, and animal excreta is discharged. Account for 70% of the total.
【０００３】産業廃棄物の約７割を占める有機汚泥は、
バイオマスとして見直されつつあるが、その有効利用方
法はまだ確立していない。Organic sludge, which accounts for about 70% of industrial waste,
Although it is being reconsidered as biomass, the effective utilization method has not yet been established.
【０００４】さらに、現有の管理型埋立処分場の余命が
３年を下回り、新規処分場の建設がままならない現在、
将来に亘って埋立処理による有機汚泥処理を行うことは
不可能であり、大量に発生する重金属化合物を含有する
有機汚泥を有効に再資源化することは緊急の問題となっ
ている。In addition, the remaining life of the existing managed landfill disposal site is less than 3 years, and the construction of a new disposal site cannot be completed at present.
It is impossible to perform organic sludge treatment by landfill treatment in the future, and it is an urgent problem to effectively recycle organic sludge containing a large amount of heavy metal compounds generated.
【０００５】この問題を解決するため、有機汚泥の肥料
化、炭化、活性炭化、溶融によるスラグの建設資材への
応用などのさまざまな再資源化技術が模索され、実証化
テストも行われている。溶融によるスラグ化技術は、有
機汚泥の可燃分を燃焼し、不燃分を高温で溶融スラグ化
して減量化し、建築資材として再資源化するというもの
である。In order to solve this problem, various recycling technologies such as fertilization of organic sludge, carbonization, activated carbonization, and application of slag by melting to construction materials have been sought, and verification tests have been conducted. . The slag-forming technology by melting is to burn combustible components of organic sludge, to convert incombustible components into molten slag at high temperature to reduce the amount, and to recycle it as a building material.
【０００６】この方法で用いられる従来型の溶融炉で
は、図３に示すように、熱分解炉や燃焼炉３０の下方に
設けた溶融炉３１の下方から溶融スラグをそのまま系外
に取り出し、排ガスは、廃熱ボイラ３２でガス中に残存
する可燃分を除去したあと、減温塔３３でバグフィルタ
１８の運転温度以下まで冷却し、バグフィルタ１８でガ
ス中の塵を除去して煙突２０から大気放出するというも
のである。In the conventional melting furnace used in this method, as shown in FIG. 3, the molten slag is taken out of the system as it is from below the melting furnace 31 provided below the thermal decomposition furnace or the combustion furnace 30, and the exhaust gas is discharged. After removing the combustible components remaining in the gas with the waste heat boiler 32, the temperature is reduced to below the operating temperature of the bag filter 18 with the temperature reducing tower 33, the dust in the gas is removed with the bag filter 18, and the chimney 20 is removed. It is to be released into the atmosphere.
【０００７】[0007]
【発明が解決しようとする課題】しかしこのような従来
方法は、利用価値のある無機物質やバイオマスとしての
有機質と有害な金属物質との混合物を処理済み物質とし
て生成するものであり、処理によって得られる成分の分
離・再資源化の視点が欠如しており、このことが、処理
生成物の再資源化を阻んでいる。例えば上記した従来の
溶融炉による有機汚泥の処理では、これを蒸留の立場か
ら見ると、スラグに不純物を多く含む単蒸留とみること
ができ、得られるスラグには有害な重金属化合物が含ま
れており、建築資材としての安全性に問題が残ってい
る。However, such a conventional method produces a mixture of an inorganic substance having a utility value and an organic substance as biomass and a harmful metal substance as a treated substance, which is obtained by the treatment. There is a lack of perspective on the separation and recycling of treated components, which prevents the recycling of treated products. For example, in the above-mentioned conventional treatment of organic sludge in a melting furnace, from the standpoint of distillation, it can be regarded as simple distillation in which slag contains a large amount of impurities, and the obtained slag contains harmful heavy metal compounds. However, there is still a problem in safety as a building material.
【０００８】そこでこの発明は、既存の汚泥処理技術の
問題点を
（1）有機汚泥の不燃分を溶融して得られるスラグの無
害化と均質化とを図ることにより、有機汚泥を市場価値
のある建設資材として再資源化可能にすること
（2）有機汚泥に含まれる金属類の山元還元可能な、す
なわち回収金属を精錬工程に戻して金属資源として再利
用可能な純度での成分分離手段を得ること
（3）処理コストを低減するために排ガスから高効率で
熱回収する手段を得ること
により解決し、有機汚泥を商品価値のある再資源として
利用可能にすることを課題としている。Therefore, the present invention has the following problems in the existing sludge treatment technology: (1) The slag obtained by melting the incombustible components of the organic sludge is made harmless and homogenized, thereby making the organic sludge a market value. Recyclable as a certain construction material (2) A method of separating the components in organic sludge with a purity that allows the reduction of the metals in the mountain, that is, the recovered metal can be returned to the refining process and reused as a metal resource. Obtaining (3) The problem is to solve the problem by obtaining a means for highly efficient heat recovery from the exhaust gas to reduce the treatment cost, and to make the organic sludge available as a resource with commercial value.
【０００９】[0009]
【課題を解決するための手段】この発明は、有機性廃棄
物の溶融処理による再資源化方法において、溶融スラグ
からの重金属化合物の蒸散による重金属化合物を含まな
いスラグの製造と、重金属化合物の気相への積極的な移
動促進と分留による廃棄物中の金属分の分離回収を行う
ことにより、上記課題を解決したものである。SUMMARY OF THE INVENTION The present invention relates to a method for recycling an organic waste by melting it to produce a heavy metal compound-free slag by evaporating the heavy metal compound from the molten slag and vaporizing the heavy metal compound. The above problem is solved by positively promoting the transfer to the phase and separating and recovering the metal component in the waste by fractional distillation.
【００１０】すなわちこの発明の有機性廃棄物の再資源
化方法は、有機分（可燃分）を含む廃棄物を、好ましく
は乾燥しかつ粉末化して、低温溶融炉１内で高温で燃焼
して当該廃棄物に含まれる不燃分を溶融して当該炉の下
方に配置した高温溶融炉５に導き、当該不燃分を更に昇
温して炉内で生成した気化ガスを高温集塵機１５に導入
して、その導入過程で析出した高沸点金属化合物を含む
高沸点塵を捕捉し、当該高温集塵室を通過した排ガスを
減温して低温集塵機１８に導入して、減温過程で析出し
た低沸点金属化合物を含む低沸点塵を捕捉し、当該低温
集塵機を通過した排ガスを大気放出すると共に、前記高
温溶融炉から排出される溶融スラグを徐冷して回収し、
前記高沸点塵及び低沸点塵を区分回収するというもので
ある。That is, in the method for recycling organic waste according to the present invention, the waste containing organic matter (combustible matter) is preferably dried and pulverized, and burned at a high temperature in the low temperature melting furnace 1. The incombustibles contained in the waste are melted and guided to the high temperature melting furnace 5 arranged below the furnace, the incombustibles are further heated, and the vaporized gas generated in the furnace is introduced into the high temperature dust collector 15. , Capturing the high-boiling-point dust containing the high-boiling-point metal compound deposited during the introduction process, reducing the temperature of the exhaust gas that has passed through the high-temperature dust collecting chamber, and introducing the low-temperature dust collector 18 to the low-boiling point deposited during the temperature-decreasing process. Captures low-boiling-point dust containing a metal compound, releases the exhaust gas that has passed through the low-temperature dust collector into the atmosphere, and gradually cools and collects the molten slag discharged from the high-temperature melting furnace,
The high boiling point dust and the low boiling point dust are separately collected.
【００１１】低温溶融炉１の燃焼温度を高めるために、
廃棄物を乾燥かつ粉末化して低温溶融炉１の炉内に散布
した状態で燃焼するのが好ましい。また、実際の装置に
おいては、高温集塵機１５の通過ガスは、熱交換機１７
を通過させることにより、ガスを減温すると共にガス中
の熱エネルギーを回収して運転コストの低減を図る。In order to raise the combustion temperature of the low temperature melting furnace 1,
It is preferable that the waste be dried and powdered and burned in a state of being dispersed in the furnace of the low temperature melting furnace 1. Further, in the actual device, the gas passing through the high temperature dust collector 15 is the heat exchanger 17
To reduce the temperature of the gas and recover the thermal energy in the gas to reduce the operating cost.
【００１２】上記方法を実施するためのこの発明の有機
性廃棄物の溶融分留装置は、炉壁上部に燃焼バーナー３
を設け頂部に粉体投入口２を設けた低温溶融炉１と、こ
の低温溶融炉の下方に連通して設けた加熱バーナー７を
備えた高温溶融炉５と、上記高温溶融炉の排気口１０に
接続された高温集塵機１５と、この高温集塵機の通過ガ
スを温度低下させる減温機１７と、この減温機の排気口
に接続された低温集塵機１８とを備えている。The apparatus for melting and fractionating organic waste according to the present invention for carrying out the above-mentioned method comprises a combustion burner 3 on the upper part of the furnace wall.
, A low temperature melting furnace 1 having a powder inlet 2 at the top thereof, a high temperature melting furnace 5 having a heating burner 7 provided below the low temperature melting furnace, and an exhaust port 10 of the high temperature melting furnace. A high temperature dust collector 15 connected to the high temperature dust collector, a temperature reducer 17 that lowers the temperature of the gas passing through the high temperature dust collector, and a low temperature dust collector 18 connected to the exhaust port of the temperature reducer.
【００１３】上記装置における減温機１７は、熱回収し
て効率化を図るために、蓄熱式熱交換機とすることが実
用上好ましい。It is practically preferable that the temperature reducer 17 in the above apparatus is a heat storage type heat exchanger in order to recover heat and improve efficiency.
【００１４】[0014]
【作用】この発明では、溶融後のスラグを二段目の溶融
炉で再加熱し、残存重金属化合物類をほぼ完全に気相側
へ移行させる。その後、ガス側へ移行した重金属化合物
を操作温度の異なる集塵装置で成分毎に分離回収する。
このことにより、スラグの精製純度を高めるだけではな
く、金属類の成分分離が可能となる。In the present invention, the molten slag is reheated in the second-stage melting furnace so that the residual heavy metal compounds are almost completely transferred to the gas phase side. After that, the heavy metal compounds transferred to the gas side are separated and collected for each component by a dust collector having different operating temperatures.
This not only enhances the purification purity of the slag, but also enables the separation of the metal components.
【００１５】この発明の方法で得られたスラグが建設資
材としての商品価値をもつためには、
(1) 建設資材としての十分な材料特性を備えているこ
と
(2) 仮にスラグ中に重金属類が残存していても、その
溶出がないこと
である。In order for the slag obtained by the method of the present invention to have commercial value as a construction material, (1) it must have sufficient material properties as a construction material (2) if slag contains heavy metals The fact is that there is no elution even if there remains.
【００１６】これらを実現するためには、徐冷法によ
り、スラグの結晶成長を制御して高強度スラグを生成す
ると共に、残存微量重金属化合部を結晶内に内包化し
て、不溶出性化することが望ましい。In order to realize these, it is necessary to control the crystal growth of the slag to generate high-strength slag by the slow cooling method and to enclose the residual trace amount of heavy metal compound in the crystal to make it insoluble. desirable.
【００１７】また重金属化合物の成分分離においては、
無反応材環境下での高温集塵（ガス温度６００℃前後）
及び低温度で金属化合物塵を集塵する。このことによ
り、高温側では主に銅、亜鉛、鉄を山元還元が可能な状
態で回収し、低温側では高温集塵機で回収できなかった
微量金属化合物（クロム、鉛、カドミ、その他）を完全
捕集し、これを既存の重金属固定技術により回収する。Further, in separating the components of the heavy metal compound,
High temperature dust collection in a non-reactive material environment (gas temperature around 600 ° C)
And collect metal compound dust at low temperature. As a result, copper, zinc, and iron are mainly recovered on the high temperature side in a state capable of Yamamoto reduction, and trace metal compounds (chromium, lead, cadmium, etc.) that could not be recovered by the high temperature dust collector on the low temperature side are completely captured. They are collected and collected by the existing heavy metal fixing technology.
【００１８】更に高温集塵機の下流の熱交換機で排ガス
の減温を行うことにより、減温と同時に熱回収を行い、
回収された熱エネルギーを用いて、例えば排気ファンを
駆動することにより、ランニングコストの低減を図るこ
とができる。Further, by reducing the temperature of the exhaust gas in the heat exchanger downstream of the high temperature dust collector, heat is recovered at the same time as the temperature reduction,
Running cost can be reduced by driving the exhaust fan using the recovered thermal energy.
【００１９】[0019]
【発明の実施の形態】以下、図面を参照してこの発明の
実施形態を説明する。図１はこの発明の実施例装置を示
すブロック図、図２はより具体的な実施例装置の主要部
の配置及び大略形状を示す断面図である。図中、１は低
温溶融炉、５は高温溶融炉、１３は二次燃焼室、１５は
高温集塵機、１７は熱交換機、１８は低温集塵機、１９
は排気ファン、２０は煙突である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an apparatus according to an embodiment of the present invention, and FIG. 2 is a sectional view showing an arrangement and a general shape of a main part of a more specific embodiment apparatus. In the figure, 1 is a low temperature melting furnace, 5 is a high temperature melting furnace, 13 is a secondary combustion chamber, 15 is a high temperature dust collector, 17 is a heat exchanger, 18 is a low temperature dust collector, 19
Is an exhaust fan, and 20 is a chimney.
【００２０】低温溶融炉１は縦長円筒形状の炉で、その
頂部に燃焼物（粉末状の乾燥有機汚泥）の投入口２が設
けられ、炉壁上部に燃焼バーナー３が設けられている。
投入口２から炉内に投入された粉末状の有機分を含む廃
棄物は、分散状態で炉内を落下する間に発火して可燃分
（有機分）が燃焼する。低温溶融炉１は炉内温度が摂氏
１３５０度程度となるように温度制御し、この高温の熱
に晒すことにより、廃棄物中の不燃分（無機分）を溶融
する。The low-temperature melting furnace 1 is a vertically long cylindrical furnace, and an inlet 2 for a combustion product (powdered dry organic sludge) is provided at the top of the furnace, and a combustion burner 3 is provided at the upper part of the furnace wall.
The waste containing the powdery organic component charged into the furnace from the charging port 2 is ignited while falling in the furnace in a dispersed state, and the combustible component (organic component) is burned. The low-temperature melting furnace 1 controls the temperature inside the furnace to about 1350 degrees Celsius and exposes it to this high temperature heat to melt the incombustibles (inorganic) in the waste.
【００２１】低温溶融炉１の底部は、断面積が小さくな
った連通路４で高温溶融炉５に連通している。高温溶融
炉５は、傾斜した炉底面を有する水平方向の炉で、その
炉底面の下端には堰６が設けられ、炉内上面にはこの堰
の上流側の部分に向けた加熱バーナー７が設けられてい
る。堰６を越えた部分に排出室８が設けられており、こ
の排出室８の下方にスラグ溜め９が設けられている。The bottom portion of the low temperature melting furnace 1 communicates with the high temperature melting furnace 5 through a communication passage 4 having a reduced cross-sectional area. The high temperature melting furnace 5 is a horizontal furnace having an inclined furnace bottom, a weir 6 is provided at the lower end of the furnace bottom, and a heating burner 7 directed to the upstream side of the weir is provided on the upper surface of the furnace. It is provided. A discharge chamber 8 is provided above the weir 6, and a slag reservoir 9 is provided below the discharge chamber 8.
【００２２】低温溶融炉１から高温溶融炉５へと流下し
た溶融スラグは、炉底面に沿って排出室８側へと流れ、
堰６を乗り越えてスラグ溜め９へと流下する。堰６の上
流側で一時的に滞留する溶融スラグは、加熱バーナー７
で摂氏約１５００度に加熱され、溶融スラグ中に含まれ
る金属化合物が気化する。気化しない灰分は、スラグ溜
め９に流下し、徐冷することによりスラグを生成する。The molten slag flowing down from the low temperature melting furnace 1 to the high temperature melting furnace 5 flows to the discharge chamber 8 side along the bottom surface of the furnace,
Overcoming the weir 6, it flows down to the slag reservoir 9. The molten slag temporarily staying on the upstream side of the weir 6 is heated by the heating burner 7
At about 1500 ° C., the metal compound contained in the molten slag vaporizes. The ash that is not vaporized flows down into the slag reservoir 9 and is slowly cooled to generate slag.
【００２３】排出室８の側方には排気口１０が開口して
おり、この排気口は前記排気ファン１９によって負圧に
されている。低温溶融炉１の燃焼ガス及び高温溶融炉５
で気化した金属化合物蒸気は、この負圧により積極的に
吸引されて、高温ガスダクト１２を通って、二次燃焼室
１３に導かれる。An exhaust port 10 is opened to the side of the exhaust chamber 8, and the exhaust port 19 is made to have a negative pressure by the exhaust fan 19. Combustion gas of low temperature melting furnace 1 and high temperature melting furnace 5
The vaporized metal compound vapor is positively sucked by this negative pressure, and is guided to the secondary combustion chamber 13 through the high temperature gas duct 12.
【００２４】二次燃焼室１３には二次燃焼空気が供給さ
れており、排ガス中の未燃焼分が高温のガス雰囲気中で
完全に燃焼する。二次燃焼室１３を通過した排ガスは、
必要により冷却空気１４を導入して所望温度に減温した
状態で、高温集塵機１５へと導入される。Secondary combustion air is supplied to the secondary combustion chamber 13, and unburned components in the exhaust gas are completely combusted in a high temperature gas atmosphere. The exhaust gas that has passed through the secondary combustion chamber 13 is
If necessary, the cooling air 14 is introduced into the high temperature dust collector 15 in a state where the cooling air 14 is cooled to a desired temperature.
【００２５】二次燃焼室１３の通過ガスは、低温溶融炉
１の燃焼ガスや二次燃焼空気との混合により、高温溶融
炉５の炉内温度より低い摂氏約８００度で高温集塵機１
５に導入される。このガスの温度低下により析出した
銅、鉄などの高沸点金属化合物は、塵（高沸点塵）とな
って高温集塵機１５のフィルタに捕捉され、適時行われ
る逆洗払い落し操作により、フィルタ表面から払い落と
されて高温集塵機１５の底部の塵排出口１６から排出さ
れる。The gas passing through the secondary combustion chamber 13 is mixed with the combustion gas of the low temperature melting furnace 1 and the secondary combustion air, and the temperature of the high temperature dust collector 1 is about 800 ° C. which is lower than the temperature inside the high temperature melting furnace 5.
Introduced in 5. The high boiling point metal compound such as copper and iron deposited due to the temperature decrease of the gas becomes dust (high boiling point dust) and is captured by the filter of the high temperature dust collector 15, and is backwashed off from the filter surface at a proper time. It is blown off and discharged from the dust discharge port 16 at the bottom of the high temperature dust collector 15.
【００２６】高温集塵機１５を通過した排ガスは、蓄熱
式セラミック熱交換機１７に導かれ、ダイオキシンの発
生を抑えるために急激に減温される。減温した排ガス
は、低温集塵機１８に導かれ、排ガスの減温操作によっ
て新たに析出した鉛、クロム、カドミウム化合物などの
金属化合物塵が、低温集塵機１８のフィルタに捕捉され
る。低温集塵機１８は、公知のバグフィルタやサイクロ
ンフィルタであり、ここで捕捉された金属化合物塵は、
適時行われる逆洗払い落し操作により、低温集塵機１８
の底部から排出される。The exhaust gas that has passed through the high temperature dust collector 15 is guided to the heat storage type ceramic heat exchanger 17 and is rapidly cooled to suppress the generation of dioxin. The temperature-reduced exhaust gas is guided to the low-temperature dust collector 18, and metal compound dust such as lead, chromium, and cadmium compounds newly deposited by the temperature-reducing operation of the exhaust gas is captured by the filter of the low-temperature dust collector 18. The low-temperature dust collector 18 is a known bag filter or cyclone filter, and the metal compound dust captured here is
The low-temperature dust collector 18 can be removed by the backwashing-off operation, which is performed in a timely manner.
Is discharged from the bottom of the.
【００２７】低温集塵機１８を通過した排ガスは、排気
ファン１９を通過して煙突２０から大気放出される。図
示実施例の装置では、排気ファン１９は熱交換機１７で
回収した熱をエネルギー源として駆動されている。The exhaust gas that has passed through the low temperature dust collector 18 passes through the exhaust fan 19 and is discharged into the atmosphere from the chimney 20. In the apparatus of the illustrated embodiment, the exhaust fan 19 is driven by using the heat recovered by the heat exchanger 17 as an energy source.
【００２８】スラグ溜め９に流下したスラグは、徐冷
し、必要により適宜粒度に破砕して、コンクリートやア
スファルト合材などの建築資材として再利用する。高温
集塵機１５及び低温集塵機１８で捕捉された金属化合物
塵は、精錬してそれぞれの金属として再利用される。The slag that has flowed into the slag reservoir 9 is gradually cooled, crushed to an appropriate particle size if necessary, and reused as a building material such as concrete or asphalt mixture. The metal compound dust captured by the high temperature dust collector 15 and the low temperature dust collector 18 is refined and reused as each metal.
【００２９】高温下でダストを除去する高温集塵機１５
は、耐熱性・集塵性能等の観点より、セラミックフィル
タを用いることが最も有効であり、ハニカムフィルタや
キャンドルフィルタなどのセラミックフィルタが使用で
きる。High temperature dust collector 15 for removing dust under high temperature
From the viewpoint of heat resistance and dust collection performance, it is most effective to use a ceramic filter, and a ceramic filter such as a honeycomb filter or a candle filter can be used.
【００３０】キャンドルフィルタは、例えば下部本体フ
ランジと上部本体フランジの間にセルプレート（取付管
板）を挟み込み、セルプレートにフィルタ差し込み孔を
設け、この孔にキャンドルタイプのセラミック繊維コン
ポジットフィルタを取り付ける。装置内部には耐火キャ
スタブルと珪酸カルシウム保温材を施工し、装置表面で
の断熱を図る。In the candle filter, for example, a cell plate (mounting tube plate) is sandwiched between a lower body flange and an upper body flange, a filter insertion hole is provided in the cell plate, and a candle type ceramic fiber composite filter is attached to this hole. Fireproof castable and calcium silicate heat insulating material are installed inside the equipment to insulate the equipment surface.
【００３１】一方、ハニカムフィルタは、自動車用触媒
担体を応用したもので、多数の貫通孔を上流と下流とを
逆に１マス毎に封じた構造で、上流の孔から入った含塵
ガスは、多孔質の薄壁を通り除塵され下流の孔へ抜けて
いく。この構造のため濾過面積を集約できる長所があ
る。８５０℃以上の高温下での使用実績があり、常温ガ
スでの逆洗でも何ら問題は起こっていない。キャンドル
フィルタと比較すると、繊維状ではなくモノリスのた
め、圧損は高いが、高い機械的強度を有しており、濾過
面積を集約できるため、キャンドルフィルタの半分以下
の収納容積で済む。On the other hand, the honeycomb filter is an application of a catalyst carrier for automobiles, and has a structure in which a large number of through-holes are sealed one by one in the upstream and the downstream, and the dust-containing gas entering from the upstream holes is , Dust is removed through the thin porous wall and flows out to the downstream hole. This structure has the advantage of consolidating the filtration area. It has been used at a high temperature of 850 ° C or higher, and there is no problem even with backwashing with normal temperature gas. Compared to the candle filter, the monolith is not fibrous, so the pressure loss is high, but it has high mechanical strength and the filtration area can be aggregated, so the storage volume of half or less of the candle filter is sufficient.
【００３２】ハニカムフィルタ及びキャンドルフィルタ
の逆洗払い落しは、パルスジェット方式が有効である。
ハニカムフィルタの場合、モノリスのため通常のバグフ
ィルタのような振動効果（バグの変形）が期待できず、
ダスト層の付着力を上回った圧力差で払い落しがなされ
る。この圧力差は、通ガス時と逆方向の逆洗流で生じる
フィルタ差圧である。このためフィルタ下流側に逆洗カ
バーにより逆洗室を設け、そこへパルスエアーを導入し
逆洗室の圧力を高めることにより払い落しを行う。A pulse jet method is effective for backwashing off the honeycomb filter and the candle filter.
In the case of the honeycomb filter, the vibration effect (deformation of the bug) like a normal bag filter cannot be expected due to the monolith,
The pressure difference exceeds the adhesive force of the dust layer, and the dust is removed. This pressure difference is the filter pressure difference that occurs in the backwash flow in the direction opposite to that at the time of passing gas. For this reason, a backwash chamber is provided on the downstream side of the filter with a backwash cover, and pulse air is introduced into the backwash chamber to increase the pressure of the backwash chamber to remove the backwash chamber.
【００３３】熱交換機１７においては、排ガス中に含ま
れるダイオキシン類の再合成を抑止するため、重金属類
の除去だけではなく、ダイオキシン再合成温度域である
２００〜４００℃を極めて短時間で冷却させる必要があ
る。本実施例では、高温集塵機の下流にセラミック熱交
換機を設置し、排ガスの急冷を行うと共に熱エネルギー
の回収を行って排気ファン１９のエネルギー源としてい
る。In the heat exchanger 17, in order to suppress the resynthesis of dioxins contained in the exhaust gas, not only the removal of heavy metals but also cooling of the dioxin resynthesis temperature range of 200 to 400 ° C. in an extremely short time is performed. There is a need. In this embodiment, a ceramic heat exchanger is installed downstream of the high-temperature dust collector to rapidly cool the exhaust gas and recover the thermal energy, which is used as the energy source of the exhaust fan 19.
【００３４】実施例のセラミック熱交換機１７は、蓄熱
型で高温空気をいったん固体の蓄熱体（セラミックハニ
カム）に蓄熱し、ついで蓄熱体と低温空気とを接触さ
せ、熱交換を行うものである。装置は、独立した２つの
塔２１ａ、２１ｂの上下端をダクトで接続した構造で、
塔の上部と下部に取り付けられた図示しない８個の切換
ダンパと２台のブロワによりガス流路を切換える。The ceramic heat exchanger 17 of the embodiment is of a heat storage type and temporarily stores high temperature air in a solid heat storage body (ceramic honeycomb) and then brings the heat storage body and low temperature air into contact with each other to perform heat exchange. The device has a structure in which the upper and lower ends of two independent towers 21a and 21b are connected by a duct,
The gas passages are switched by eight switch dampers (not shown) mounted on the upper and lower parts of the tower and two blowers.
【００３５】個々の塔２１ａ、２１ｂでそれぞれ蓄熱、
放熱が同時に行われる。第一塔に高温ガスが流入された
場合、高温用切換ダンパを通って熱交換機に入った高温
ガスは、セラミックハニカム層を通過する間にハニカム
に蓄熱され、ハニカム層上部から熱交換された低温ガス
が取り出される。また、同時に第二塔の上部から冷風ブ
ロワにより環境空気を供給し、ハニカムに蓄熱されてい
る熱を回収後、塔下部の高温ガス用ダンパを通り、高温
ガスが取り出される。このプロセスを第一塔と第二塔交
互に繰り返し熱交換を行う。In each of the towers 21a and 21b, heat is stored,
Heat is released at the same time. When high-temperature gas flows into the first tower, the high-temperature gas that enters the heat exchanger through the high-temperature switching damper is stored in the honeycomb while passing through the ceramic honeycomb layer, and the low-temperature gas that has been heat-exchanged from the upper part of the honeycomb layer. Gas is taken out. At the same time, ambient air is supplied from the upper part of the second tower by a cold air blower to recover the heat stored in the honeycomb, and then the high temperature gas is taken out through a damper for high temperature gas in the lower part of the tower. This process is repeated by alternating the first and second towers for heat exchange.
【００３６】[0036]
【発明の効果】以上説明したこの発明により、現在自治
体や事業所が抱える多額の汚泥処理負担が大幅に軽減さ
れ、再資源化された回収物の売却による費用の回収が期
待できる。また、再資源化品は、廃棄物発生の持続性を
考えると供給が長期に亘り、使用量がある程度安定して
いる土木建設用資材とすることにより、天然資材の採掘
・採取の抑制効果が期待できる。As described above, according to the present invention, a large amount of sludge treatment load currently held by local governments and business establishments can be significantly reduced, and it is expected that costs can be recovered by selling recycled resources. Considering the sustainability of waste generation, recycled materials can be used for civil engineering construction materials whose supply is stable over a long period of time, which reduces the effects of mining and sampling of natural materials. Can be expected.
【図１】この発明装置の一実施例のブロック図FIG. 1 is a block diagram of an embodiment of the device of the present invention.
【図２】装置の要部の具体例の概略断面図FIG. 2 is a schematic sectional view of a specific example of a main part of the apparatus.
【図３】従来装置のブロック図FIG. 3 is a block diagram of a conventional device.
【符号の説明】 １ 低温溶融炉 ２ 投入口 ３ 燃焼バーナー ５ 高温溶融炉 ７ 加熱バーナー 15 高温集塵機 17 蓄熱式セラミック熱交換機 18 低温集塵機[Explanation of symbols] 1 low temperature melting furnace 2 Input port 3 combustion burner 5 High temperature melting furnace 7 heating burner 15 High temperature dust collector 17 Heat storage type ceramic heat exchanger 18 low temperature dust collector
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０２Ｆ 11/12 Ｃ０２Ｆ 11/12 Ｚ ４Ｋ００１ Ｃ２２Ｂ 7/00 Ｃ２２Ｂ 7/00 Ｆ ４Ｋ０４５ Ｆ２３Ｇ 5/033 Ｆ２３Ｇ 5/033 Ｃ ４Ｋ０５６ 5/44 5/44 Ｚ 5/46 5/46 Ａ Ｆ２３Ｊ 15/06 Ｆ２７Ｂ 1/02 Ｆ２７Ｂ 1/02 1/08 1/08 1/18 1/18 1/20 1/20 1/21 1/21 1/22 1/22 Ｆ２７Ｄ 17/00 １０１Ａ Ｆ２７Ｄ 17/00 １０１ １０４ １０４ １０４Ｄ １０４Ｇ １０５Ａ １０５ １０５Ｋ Ｆ２３Ｊ 15/00 Ｋ (72)発明者 水越 裕治 石川県松任市水澄町375番地 株式会社ア クトリー内 (72)発明者 界 信好 石川県松任市水澄町375番地 株式会社ア クトリー内 (72)発明者 増井 芽 石川県松任市水澄町375番地 株式会社ア クトリー内 Ｆターム(参考） 3K061 AA23 AB03 AC01 BA01 CA01 DA15 DA18 DA19 3K065 AA16 AB03 AC01 BA01 CA02 CA11 HA03 JA05 3K070 DA27 4D058 JA02 JA04 JA32 JB06 KB11 SA20 4D059 AA01 AA02 AA11 AA13 AA14 BB04 BB12 BD00 BK11 CA14 CC04 CC07 EA06 EB06 4K001 AA06 AA08 AA09 AA10 AA20 AA30 BA24 CA01 CA09 DA06 EA05 4K045 AA01 BA10 GA02 GB08 GD08 KA01 LA01 4K056 AA19 BA01 BB01 CA11 DA02 DA27 DB11 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) C02F 11/12 C02F 11/12 Z 4K001 C22B 7/00 C22B 7/00 F 4K045 F23G 5/033 F23G 5 / 033 C 4K056 5/44 5/44 Z 5/46 5/46 A F23J 15/06 F27B 1/02 F27B 1/02 1/08 1/08 1/18 1/18 1/20 1/20 1/21 1/21 1/22 1/22 F27D 17/00 101A F27D 17/00 101 104 104 104 104D 104G 105A 105 105K F23J 15/00 K (72) Inventor Yuji Mizukoshi 375 Mizusumi-cho, Matsuto City, Ishikawa Prefecture Actry Co., Ltd. (72) Inventor Nobuyoshi Kami, 375 Mizusumi-cho, Matsuto-shi, Ishikawa Prefecture Actry Inc. (72) Inventor Mei Masui 375, Mizusumi-cho, Matsuto-shi, Ishikawa ACT Corporation F term in Lee (Reference) 3K061 AA23 AB03 AC01 BA01 CA01 DA15 DA18 DA19 3K065 AA16 AB03 AC01 BA01 CA02 CA11 HA03 JA05 3K070 DA27 4D058 JA02 JA04 JA32 JB06 KB11 SA20 4D059 AA01 AA02 AA11 AA13 AA14 CC14 BB04 BB04 BB04 BB04 BB04 BB04 BB04 AA06 AA08 AA09 AA10 AA20 AA30 BA24 CA01 CA09 DA06 EA05 4K045 AA01 BA10 GA02 GB08 GD08 KA01 LA01 4K056 AA19 BA01 BB01 CA11 DA02 DA27 DB11
Claims (5)
で高温で燃焼して当該廃棄物に含まれる不燃分を溶融し
て当該炉の下方に配置した高温溶融炉(5)に導き、当該
不燃分を更に昇温して炉内で生成した気化ガスを高温集
塵機(15)に導入してその導入過程で析出した高沸点塵を
捕捉し、当該高温集塵室を通過した排ガスを減温して低
温集塵機(18)に導入して減温過程で析出した低沸点塵を
捕捉し、当該低温集塵機を通過した排ガスを大気放出す
ると共に、前記高温溶融炉から排出される溶融スラグを
回収し、前記高沸点塵及び低沸点塵を区分回収すること
を特徴とする、有機性廃棄物の再資源化方法。1. A high-temperature melting furnace (5) in which combustible-containing waste is burned at a high temperature in a low-temperature melting furnace (1) to melt incombustibles contained in the waste and placed below the furnace. Introduced into the high temperature dust collector (15), the vaporized gas generated in the furnace by further raising the temperature of the incombustibles to capture the high boiling point dust deposited during the introduction process, and passed through the high temperature dust collection chamber. The low temperature dust is reduced in temperature and introduced into the low temperature dust collector (18) to capture the low boiling point dust that has precipitated during the temperature reduction process, and the exhaust gas that has passed through the low temperature dust collector is released to the atmosphere and melted from the high temperature melting furnace. A method for recycling organic waste, comprising collecting slag and separately collecting the high-boiling point dust and the low-boiling point dust.
溶融炉の炉内に散布した状態で燃焼する、請求項１記載
の有機性廃棄物の再資源化方法。2. The method for recycling organic waste according to claim 1, wherein the dried and powdered waste is burned while being dispersed in the furnace of the low temperature melting furnace.
7)に通過して減温しかつ熱回収する、請求項１又は２記
載の有機性廃棄物の再資源化方法。3. The gas passing through the high temperature dust collector (15) is passed through a heat exchanger (1
The method for recycling organic waste according to claim 1 or 2, wherein the method is passed through 7) to reduce the temperature and recover the heat.
に粉体投入口(2)を設けた低温溶融炉(1)と、この低温溶
融炉の下方に連通して設けた加熱バーナー(7)を備えた
高温溶融炉(5)と、上記高温溶融炉の排気口に接続され
た高温集塵機(15)と、この高温集塵機の通過ガスを温度
低下させる減温機(17)と、この減温機の排気口に接続さ
れた低温集塵機(18)とを備えている、有機性廃棄物の溶
融分留装置。4. A low temperature melting furnace (1) having a combustion burner (3) on the upper part of the furnace wall and a powder charging port (2) on the top, and a heating burner provided in communication with the lower part of the low temperature melting furnace. A high temperature melting furnace (5) equipped with (7), a high temperature dust collector (15) connected to the exhaust port of the high temperature melting furnace, and a temperature reducer (17) for lowering the temperature of the passing gas of this high temperature dust collector, An apparatus for melting and fractionating organic waste, comprising a low temperature dust collector (18) connected to the exhaust port of this temperature reducer.
を特徴とする、請求項４記載の有機性廃棄物の溶融分留
装置。5. The apparatus for melting and fractionating organic waste according to claim 4, wherein the temperature reducer (17) is a heat storage heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001301998A JP4817569B2 (en) | 2001-09-28 | 2001-09-28 | Organic waste melting fractionator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001301998A JP4817569B2 (en) | 2001-09-28 | 2001-09-28 | Organic waste melting fractionator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003106506A true JP2003106506A (en) | 2003-04-09 |
| JP4817569B2 JP4817569B2 (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001301998A Expired - Fee Related JP4817569B2 (en) | 2001-09-28 | 2001-09-28 | Organic waste melting fractionator |
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| Country | Link |
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| JP (1) | JP4817569B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005331172A (en) * | 2004-05-20 | 2005-12-02 | Oshima Shipbuilding Co Ltd | Energy and valuable metal recovery system |
| JP2010019525A (en) * | 2008-07-14 | 2010-01-28 | Kobe Steel Ltd | Exhaust gas treatment facility and dust recovery method by exhaust gas treatment facility |
| CN105541065A (en) * | 2016-01-21 | 2016-05-04 | 昆明理工大学 | High-temperature melting and solidifying method for heavy metal sludge |
| CN115468413A (en) * | 2022-08-17 | 2022-12-13 | 安徽华铂再生资源科技有限公司 | Vertical continuous drying roasting device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596307A (en) * | 2015-01-31 | 2015-05-06 | 江西新金叶实业有限公司 | Smoke dust cooling and settling system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000274650A (en) * | 1999-03-29 | 2000-10-03 | Ishikawajima Harima Heavy Ind Co Ltd | Device and method for suppressing dioxin |
-
2001
- 2001-09-28 JP JP2001301998A patent/JP4817569B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000274650A (en) * | 1999-03-29 | 2000-10-03 | Ishikawajima Harima Heavy Ind Co Ltd | Device and method for suppressing dioxin |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005331172A (en) * | 2004-05-20 | 2005-12-02 | Oshima Shipbuilding Co Ltd | Energy and valuable metal recovery system |
| JP4576156B2 (en) * | 2004-05-20 | 2010-11-04 | 株式会社大島造船所 | Waste treatment equipment that recovers thermal energy and valuable metals |
| JP2010019525A (en) * | 2008-07-14 | 2010-01-28 | Kobe Steel Ltd | Exhaust gas treatment facility and dust recovery method by exhaust gas treatment facility |
| CN105541065A (en) * | 2016-01-21 | 2016-05-04 | 昆明理工大学 | High-temperature melting and solidifying method for heavy metal sludge |
| CN115468413A (en) * | 2022-08-17 | 2022-12-13 | 安徽华铂再生资源科技有限公司 | Vertical continuous drying roasting device |
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| Publication number | Publication date |
|---|---|
| JP4817569B2 (en) | 2011-11-16 |
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