JP3510300B2 - Waste treatment equipment - Google Patents
Waste treatment equipmentInfo
- Publication number
- JP3510300B2 JP3510300B2 JP26693593A JP26693593A JP3510300B2 JP 3510300 B2 JP3510300 B2 JP 3510300B2 JP 26693593 A JP26693593 A JP 26693593A JP 26693593 A JP26693593 A JP 26693593A JP 3510300 B2 JP3510300 B2 JP 3510300B2
- Authority
- JP
- Japan
- Prior art keywords
- heat treatment
- ash
- mixer
- fluidized
- heat
- 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.)
- Expired - Fee Related
Links
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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
Landscapes
- Gasification And Melting Of Waste (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、廃棄物などを焼却して
発生する焼却灰を熱処理する装置に関し、特に、焼却灰
中に含有されるダイオキシン系化合物の分解除去に有効
なものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for heat-treating incinerated ash generated by incinerating wastes and the like, and is particularly effective for decomposing and removing dioxin compounds contained in the incinerated ash.
【０００２】[0002]
【従来の技術】廃棄物などを焼却して発生する焼却灰中
には、廃棄物などの種類によっては、ダイオキシン系化
合物が含有されてしまう場合がある。このため、廃棄物
の焼却処理設備には、発生した焼却灰を熱処理すること
により、焼却灰中のダイオキシン系化合物を分解、除去
する焼却灰熱処理設備が用いられている。2. Description of the Related Art Dioxin compounds may be contained in incinerated ash generated by incineration of waste materials depending on the type of waste materials. For this reason, incineration ash heat treatment equipment that decomposes and removes dioxin-based compounds in the incineration ash by heat treating the generated incineration ash is used in the waste incineration treatment equipment.
【０００３】このような従来の焼却灰熱処理設備は、壁
面に電熱線を設けた熱処理容器の内部に焼却灰を送り込
み、高温加熱することにより、焼却灰中のダイオキシン
系化合物を熱分解するのである。In such conventional incineration ash heat treatment equipment, the dioxin-based compound in the incineration ash is thermally decomposed by feeding the incineration ash into a heat treatment container having a heating wire on its wall surface and heating it at a high temperature. .
【０００４】[0004]
【発明が解決しようとする課題】ところが、前述したよ
うな焼却灰熱処理設備では、熱処理容器内を壁面側から
加熱するため、熱処理容器内の中央部分の焼却灰を加熱
しにくく、焼却灰の熱処理を効率良く均一に行うことが
非常に困難であった。However, in the incineration ash heat treatment equipment as described above, since the inside of the heat treatment container is heated from the wall surface side, it is difficult to heat the incineration ash in the central part of the heat treatment container, and the heat treatment of the incineration ash is difficult. It was very difficult to carry out efficiently and uniformly.
【０００５】そこで、熱処理容器の内部に電熱コイルを
設け、熱処理容器内の中央部分の焼却灰も同時に加熱す
ることも考えられるが、熱処理容器の内部に電熱コイル
を設けてしまうと、熱処理容器内に焼却灰を均一に送り
込んだり、熱処理容器から焼却灰を完全に取り出すこと
が非常に困難になってしまう。Therefore, it is conceivable to provide an electric heating coil inside the heat treatment container and simultaneously heat the incineration ash in the central portion of the heat treatment container. However, if the electric heat coil is provided inside the heat treatment container, It is very difficult to feed the incinerated ash uniformly into the container and to completely remove the incinerated ash from the heat treatment container.
【０００６】また、焼却灰中に水銀などの重金属やそれ
らの化合物などが含有されている場合には、焼却灰を熱
処理すると、これらの重金属や重金属系化合物の蒸気が
発生してしまうので、重金属や重金属系化合物を含有す
る焼却灰は、ダイオキシン系化合物の熱分解処理をせず
に、固化処理せざるを得なかった。When the incinerated ash contains heavy metals such as mercury and their compounds, when the incinerated ash is heat-treated, vapors of these heavy metals and heavy metal compounds are generated. The incineration ash containing the or heavy metal-based compound had to be solidified without thermal decomposition of the dioxin-based compound.
【０００７】[0007]
【課題を解決するための手段】前述した課題を解決する
ため、本発明による廃棄物処理設備では、廃棄物を焼却
する流動床炉と、前記流動床炉から抜き出された高温の
流動砂から不燃物を系外へ取り出し、当該流動砂が当該
流動床炉内に戻される残差分離装置と、前記残差分離装
置で不燃物を取り出された前記流動砂の一部と前記流動
床炉内で発生した排気から回収された焼却灰とを混合す
る混合機と、前記混合機へ連結され且つ当該混合機で混
合された前記焼却灰と前記流動砂とを１時間以上滞留さ
せて当該焼却灰を熱処理する熱処理容器と、前記熱処理
容器へ連結され且つ混合された前記焼却灰と前記流動砂
とをそれぞれ分離する分離機と、前記分離機で分離され
た前記流動砂を前記流動床炉内に戻すコンベアと、前記
熱処理容器へ不活性気体を送り込む不活性気体供給手段
と、熱処理された前記焼却灰を急速に冷却する焼却灰冷
却手段と、前記熱処理容器の内部の酸素濃度を測定する
酸素センサと、前記混合機で混合された前記焼却灰と前
記流動砂との混合物の温度を測定する温度センサと、前
記酸素センサの測定信号に基づいて前記熱処理容器の内
部の酸素濃度が１．５％以下となるように前記不活性気
体供給手段を制御する酸素濃度制御手段と、前記温度セ
ンサの測定信号に基づいて前記焼却灰と前記流動砂との
混合物の温度が３００〜４５０℃となるように前記混合
機の当該焼却灰と当該流動砂との混合比を制御する混合
比制御手段とを備えたのである。In order to solve the above-mentioned problems, in the waste treatment facility according to the present invention, the waste is incinerated.
Fluidized bed furnace and the high temperature of the fluidized bed furnace
Remove the incombustible material from the fluidized sand to the outside of the system
The residual separation device returned to the fluidized bed furnace and the residual separation device
And a part of the fluidized sand from which incombustibles have been taken out
A mixer that mixes the incineration ash recovered from the exhaust gas generated in the floor furnace, and the incineration ash that is connected to the mixer and mixed by the mixer and the fluidized sand are retained for 1 hour or more. a heat treatment vessel for heat treatment of the incineration ash, a separator for separating the linked to the heat treatment vessel and mixed with the ash the fluidized sand and respectively, separated by the separator
A conveyor for returning the fluidized sand into the fluidized bed furnace, an inert gas supply means for sending an inert gas to the heat treatment container, an incineration ash cooling means for rapidly cooling the heat-treated incinerator ash, and the heat treatment. Oxygen sensor for measuring the oxygen concentration inside the container, a temperature sensor for measuring the temperature of the mixture of the incineration ash and the fluidized sand mixed in the mixer, the heat treatment based on the measurement signal of the oxygen sensor A mixture of the incinerated ash and the fluidized sand based on the measurement signal of the temperature sensor, the oxygen concentration control unit controlling the inert gas supply unit so that the oxygen concentration inside the container is 1.5% or less. The mixing ratio control means for controlling the mixing ratio of the incinerated ash of the mixer and the fluidized sand is provided so that the temperature becomes 300 to 450 ° C.
【０００８】[0008]
【０００９】[0009]
【００１０】また、上述した焼却灰熱処理設備に、熱処
理した前記焼却灰から発生する重金属もしくは重金属化
合物の蒸気を捕集する捕集手段を備えると良い。Further, the ash heat treatment equipment as described above, may comprise a collecting means for collecting the vapor of heavy metal or heavy metal compound generated from the ash heat-treated.
【００１１】[0011]
【作用】前述した構成による焼却灰処理装置では、高温
に加熱した砂と混合機で混合した焼却灰を熱処理容器に
滞留させた後、分離機で砂と分離するので、まんべんな
く熱処理した焼却灰を容易に取り出せる。[Operation] In the incineration ash treatment apparatus having the above-described configuration, the incineration ash mixed with sand heated to a high temperature in the mixer is retained in the heat treatment container, and then separated from the sand in the separator, so that the incineration ash heat-treated uniformly Easy to take out.
【００１２】この熱処理の際に、不活性気体供給手段で
熱処理容器内に不活性気体を送り込んで熱処理容器内の
酸素濃度を低下させると共に、焼却灰冷却手段で熱処理
された焼却灰を急速に冷却することにより、焼却灰の熱
処理効果を大幅に向上させる。During this heat treatment, the inert gas supply means feeds an inert gas into the heat treatment container to reduce the oxygen concentration in the heat treatment container, and the incineration ash cooling means rapidly cools the heat treated incineration ash. By doing so, the heat treatment effect of the incineration ash is significantly improved.
【００１３】なお、酸素センサの測定信号に基づいて、
酸素濃度制御手段が熱処理容器の内部を所定の酸素濃度
となるように不活性気体供給手段を制御し、温度センサ
の測定信号に基づいて、混合比制御手段が焼却灰と砂と
の混合物を所定の温度となるよう混合機の焼却灰と砂と
の混合比を制御することにより、焼却灰の熱処理は、自
動的に最適な条件下で行われる。Based on the measurement signal of the oxygen sensor,
The oxygen concentration control means controls the inert gas supply means so that the inside of the heat treatment container has a predetermined oxygen concentration, and the mixing ratio control means determines the mixture of incinerated ash and sand based on the measurement signal of the temperature sensor. By controlling the mixing ratio of the incineration ash and the sand of the mixer so that the temperature becomes, the heat treatment of the incineration ash is automatically performed under the optimum conditions.
【００１４】また、熱処理により焼却灰から発生する重
金属もしくは重金属化合物の蒸気を捕集手段で捕集する
ことにより、排気中には、これらの蒸気が含まれること
がない。Further, by collecting the vapor of the heavy metal or heavy metal compound generated from the incinerated ash by the heat treatment by the trapping means, the exhaust gas does not contain these vapors.
【００１５】[0015]
【実施例】本発明による廃棄物処理設備の一実施例を図
１に基づいて説明する。なお、図１は、その概略構成図
である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the waste treatment facility according to the present invention will be described with reference to FIG. Note that FIG. 1 is a schematic configuration diagram thereof.
【００１６】図１に示すように、廃棄物を焼却する流動
床炉１１には、廃棄物を投入するホッパ１１ａが設けら
れている。流動床炉１１の内部下方には、廃棄物を粉
砕、加熱する流動砂１０が充てんされている。流動床炉
１１の下方には、流動床炉１１内へ流動空気を送り込む
図示しない送風機が連結されている。As shown in FIG. 1, the fluidized bed furnace 11 for incinerating waste is provided with a hopper 11a for charging the waste. A fluidized sand 10 for crushing and heating waste is filled below the inside of the fluidized bed furnace 11. Below the fluidized bed furnace 11, a blower (not shown) that sends fluidized air into the fluidized bed furnace 11 is connected.
【００１７】つまり、ホッパ１１ａから流動床炉１１内
へ投入された廃棄物は、図示しない加熱バーナで高温加
熱された流動砂１０と共に、流動空気により流動床炉１
１内を流動し、粉砕、加熱されて焼却されるのである。That is, the waste introduced into the fluidized bed furnace 11 from the hopper 11a is moved by the fluidized air into the fluidized bed furnace 1 together with the fluidized sand 10 which is heated to a high temperature by a heating burner (not shown).
It flows in 1 and is crushed, heated and incinerated.
【００１８】流動床炉１１の上部には、流動床炉１１内
で発生した焼却灰や焼焼ガスなどの排気から熱を回収す
る排熱回収装置１２が連結されている。排熱回収装置１
２には、排気中から焼却灰を捕集する集塵装置１３が連
結されている。集塵装置１３は、誘引通風機１４を介し
て煙突１５に連結されている。An exhaust heat recovery device 12 is connected to the upper part of the fluidized bed furnace 11 to recover heat from exhaust gas such as incineration ash and burning gas generated in the fluidized bed furnace 11. Exhaust heat recovery device 1
A dust collector 13 is connected to 2 for collecting incinerated ash from the exhaust. The dust collector 13 is connected to the chimney 15 via the induction fan 14.
【００１９】つまり、流動床炉１１内で発生した排気
は、誘引通風機１４で吸引されることにより、排熱回収
装置１２で熱を回収されてから、集塵装置１３で焼却灰
を捕集された後、煙突１５から排出されるのである。That is, the exhaust gas generated in the fluidized bed furnace 11 is sucked by the induced draft fan 14 so that the heat is recovered by the exhaust heat recovery device 12 and then the incinerated ash is collected by the dust collector 13. After being discharged, it is discharged from the chimney 15.
【００２０】排熱回収装置１２の下部及び集塵装置１３
の下部には、これら装置で捕集された焼却灰を集積する
集積容器１６が連結されている。The lower part of the exhaust heat recovery device 12 and the dust collector 13
An accumulation container 16 for accumulating incineration ash collected by these devices is connected to the lower part of the.
【００２１】前記流動床炉１１の側方下部には、焼却に
より発生する大型不燃物などを流動砂１０から分離する
残差分離装置１７が連結されており、残差分離装置１７
で分離された大型不燃物などは、これら設備の系外へ取
り出され、流動砂１０は、配管１７ａを通ってコンベア
１８に送られ、流動床炉１１内に戻されるようになって
いる。A residual separation device 17 for separating a large incombustible material generated by incineration from the fluidized sand 10 is connected to a lateral lower part of the fluidized bed furnace 11. The residual separation device 17 is connected to the residual separation device 17.
The large incombustibles and the like separated in step 1 are taken out of the system of these facilities, and the fluidized sand 10 is sent to the conveyor 18 through the pipe 17a and returned to the inside of the fluidized bed furnace 11.
【００２２】残差分離装置１７の配管１７ａの途中部分
及び集積容器１６の下部は、流動砂１０と焼却灰とを混
合する混合機１にそれぞれ連結されている。混合機１に
は、混合機１で混合した焼却灰と流動砂１０とを滞留さ
せる熱処理容器２が連結されている。The intermediate part of the pipe 17a of the residual separation device 17 and the lower part of the accumulating container 16 are connected to a mixer 1 for mixing the fluidized sand 10 and the incinerated ash. To the mixer 1, a heat treatment container 2 for connecting the incinerated ash mixed by the mixer 1 and the fluidized sand 10 is connected.
【００２３】つまり、集積容器１６に集積された焼却灰
は、高温の流動砂１０と混合機１で混合された後、熱処
理容器２に送り込まれて滞留させられることにより、流
動砂１０の熱でまんべんなく熱処理されるのである。な
お、熱処理容器２は、ピストンフロータイプを用いるこ
とにより、連続運転処理が可能となる。That is, the incinerated ash accumulated in the accumulating container 16 is mixed with the high temperature fluidized sand 10 by the mixer 1 and then sent to the heat treatment vessel 2 to be retained therein. It is heat-treated evenly. The heat treatment container 2 can be continuously operated by using the piston flow type.
【００２４】また、混合機１には、焼却灰と流動砂１０
との混合物の温度を測定する温度センサ３からの信号に
基づいて、焼却灰と流動砂１０との混合物の温度を所定
の値となるよう混合機１の焼却灰と流動砂１０との混合
比を制御する混合比制御手段である図示しない温度制御
装置が電気的に接続されている。Further, in the mixer 1, incineration ash and fluidized sand 10
Based on the signal from the temperature sensor 3 that measures the temperature of the mixture of the incinerated ash and the fluidized sand 10, the mixture ratio of the incinerated ash of the mixer 1 and the fluidized sand 10 is adjusted to a predetermined value. A temperature control device (not shown), which is a mixing ratio control means for controlling the above, is electrically connected.
【００２５】さらに、混合機１には、混合機１及び熱処
理容器２内へ不活性気体である窒素を送り込む不活性気
体供給手段である図示しない窒素供給装置が連結されて
いる。この窒素供給装置には、混合機１及び熱処理容器
２内の酸素濃度を測定する酸素センサ４からの信号に基
づいて、混合機１及び熱処理容器２内の酸素濃度を所定
の値となるよう窒素供給装置からの窒素供給量を制御す
る酸素濃度制御手段である図示しない雰囲気制御装置が
電気的に接続されている。Further, the mixer 1 is connected to a nitrogen supply device (not shown) which is an inert gas supply means for sending nitrogen which is an inert gas into the mixer 1 and the heat treatment container 2. In this nitrogen supply device, based on a signal from an oxygen sensor 4 which measures the oxygen concentration in the mixer 1 and the heat treatment container 2, nitrogen is supplied so that the oxygen concentration in the mixer 1 and the heat treatment container 2 becomes a predetermined value. An atmosphere control device (not shown), which is an oxygen concentration control means for controlling the nitrogen supply amount from the supply device, is electrically connected.
【００２６】前記熱処理容器２の側方下部には、熱処理
容器２で熱処理された焼却灰を急速冷却しながら流動砂
１０から分離する冷却分離機５が連結されている。A cooling separator 5 for rapidly cooling the incinerated ash heat-treated in the heat treatment container 2 and separating it from the fluidized sand 10 is connected to the lateral lower part of the heat treatment container 2.
【００２７】つまり、熱処理容器２から冷却分離機５に
送り込まれた焼却灰と流動砂１０の混合物は、冷却分離
機５の下部に連結された送風機６からの送風により、冷
却分離機５内を流動すると共に、冷却分離機５の外壁に
設けられた冷却ジャケット７及び、冷却分離機５の内部
に設けられた冷却管８により冷却されながら分離される
のである。なお、本実施例では、冷却分離機５、送風機
６、冷却ジャケット７、冷却管８などにより、焼却灰冷
却手段を構成しているが、冷却分離機５、送風機６など
は、分離機の構成の一部にもなっている。また、本実施
例では、冷却手段として、熱交換率の良い直接接触型の
流動層／移動層方式としている。That is, the mixture of the incinerated ash and the fluidized sand 10 sent from the heat treatment container 2 to the cooling separator 5 flows through the inside of the cooling separator 5 by the air blow from the blower 6 connected to the lower part of the cooling separator 5. While flowing, it is separated while being cooled by the cooling jacket 7 provided on the outer wall of the cooling separator 5 and the cooling pipe 8 provided inside the cooling separator 5. In this embodiment, the cooling separator 5, the blower 6, the cooling jacket 7, the cooling pipe 8 and the like constitute the incineration ash cooling means. However, the cooling separator 5, the blower 6 and the like have the structure of the separator. Is also part of. Further, in this embodiment, the cooling means is a direct contact type fluidized bed / moving bed system having a good heat exchange rate.
【００２８】冷却分離機５の上部側方には、冷却分離機
５で分離された焼却灰を捕集する集塵装置１９が連結さ
れている。集塵装置１９は、誘引通風機２０を介して煙
突１５に連結されている。A dust collector 19 for collecting the incinerated ash separated by the cooling separator 5 is connected to the upper side of the cooling separator 5. The dust collector 19 is connected to the chimney 15 via an induction fan 20.
【００２９】冷却分離機５の側面中途には、冷却分離機
５で分離された流動砂１０を送り出す排出管５ａが設け
られており、排出管５ａから排出された流動砂１０は、
コンベア１８により、流動床炉１１内に戻されるように
なっている。A discharge pipe 5a for sending out the fluidized sand 10 separated by the cooling separator 5 is provided in the middle of the side surface of the cooling separator 5, and the fluidized sand 10 discharged from the discharge pipe 5a is
It is adapted to be returned into the fluidized bed furnace 11 by the conveyor 18.
【００３０】前記熱処理容器２の上部には、焼却灰の熱
処理により、水銀などの重金属やそれらの化合物の蒸気
を発生した場合に、これらの物質を捕集する捕集手段で
あるスクラバ９が連結されている。このスクラバ９は、
集塵装置１９に連結されている。つまり、焼却灰の熱処
理により重金属やそれらの化合物の蒸気が発生しても、
これらの物質は、スクラバ９で捕集され、排気と共に排
出されることがないのである。なお、熱処理容器２内で
発生したこれらの蒸気は、ほとんどスクラバ９側へ流れ
るが、もし、冷却分離機５側へ流れたとしても、集塵装
置１９で焼却灰中に取り込まれるので、外部に漏れるこ
とはない。A scrubber 9, which is a collecting means for collecting heavy metals such as mercury and their compounds when they are vaporized by the heat treatment of incinerated ash, is connected to the upper portion of the heat treatment container 2. Has been done. This scrubber 9
It is connected to the dust collector 19. In other words, even if the vapor of heavy metals and their compounds is generated by the heat treatment of incineration ash,
These substances are collected by the scrubber 9 and are not discharged together with the exhaust gas. Most of these vapors generated in the heat treatment container 2 flow to the scrubber 9 side, but even if they flow to the cooling separator 5 side, they are taken into the incineration ash by the dust collector 19, so they are exposed to the outside. It never leaks.
【００３１】ここで、このような焼却灰熱処理設備の最
適条件を求めるため、下記のような実験を行った。な
お、図３は、その実験の装置の概略構成図、図４は、そ
の実験結果である。Here, in order to find the optimum conditions of such an incineration ash heat treatment facility, the following experiment was conducted. Note that FIG. 3 is a schematic configuration diagram of the apparatus for the experiment, and FIG. 4 is the result of the experiment.
【００３２】図３に示すように、流動床炉から抜き出さ
れる流動砂と同様な温度（６００〜６５０℃）に予め加
熱した砂と、集積容器で集積された焼却灰と同様な温度
（約１００℃）に予め加熱した灰との混合物３０が所定
の温度（２００℃、３００℃、４００℃）となるよう
に、上記砂と上記灰とをそれぞれ混合機２１のホッパ２
１ａに投入して、熱処理容器２２内へボール弁２１ｂを
介して送り込む。これと同時に、熱処理容器２２内の酸
素濃度が１．５％以下となるように、リーク管２３から
空気を追い出すように窒素供給管２４から窒素を供給す
る。なお、酸素濃度を１．５％以下とするのは、ダイオ
キシンの再発生を防ぐためである。As shown in FIG. 3, sand preheated to the same temperature (600 to 650 ° C.) as that of the fluidized sand extracted from the fluidized bed furnace and the same temperature as the incinerated ash accumulated in the accumulating container (about The sand and the ash are mixed in the hopper 2 of the mixer 21 so that the mixture 30 with the ash preheated to 100 ° C. has a predetermined temperature (200 ° C., 300 ° C., 400 ° C.).
1a, and is fed into the heat treatment container 22 via the ball valve 21b. At the same time, nitrogen is supplied from the nitrogen supply pipe 24 so as to expel air from the leak pipe 23 so that the oxygen concentration in the heat treatment container 22 becomes 1.5% or less. The oxygen concentration is set to 1.5% or less in order to prevent the re-generation of dioxin.
【００３３】熱処理容器２２内へ混合物３０を所定量充
てんした後、ボール弁２１ｂを閉じて熱処理容器２２を
密閉し、熱処理容器２２内の酸素濃度及び温度がそれぞ
れ所定の値となるように各計測器で計測しながら窒素供
給管２４からの窒素供給や補助電熱ヒータ２５による保
温を行う。After filling the heat treatment container 22 with a predetermined amount of the mixture 30, the ball valve 21b is closed to seal the heat treatment container 22, and each measurement is performed so that the oxygen concentration and the temperature in the heat treatment container 22 become predetermined values. Nitrogen is supplied from the nitrogen supply pipe 24 and heat is maintained by the auxiliary electric heater 25 while being measured by the instrument.
【００３４】所定時間経過後、熱処理容器２２内から混
合物３０を取り出して急速冷却を行う。これは、熱処理
された灰を高温から室温まで除々に冷却すると、冷却途
中でダイオキシンが再発生する可能性があるためであ
る。After a lapse of a predetermined time, the mixture 30 is taken out of the heat treatment container 22 and rapidly cooled. This is because when heat-treated ash is gradually cooled from high temperature to room temperature, dioxin may be regenerated during cooling.
【００３５】この急速冷却した灰中に残留したダイオキ
シン系化合物の濃度を分析した。その結果、図４に示す
ように、３００℃以上で１時間以上熱処理すると、灰中
のダイオキシン系化合物は、ほとんど分解されて、消滅
または基準値以下となることが判明した。The concentration of dioxin compounds remaining in the rapidly cooled ash was analyzed. As a result, as shown in FIG. 4, it was found that, when heat-treated at 300 ° C. or higher for 1 hour or longer, most of the dioxin-based compounds in the ash were decomposed and disappeared or fell below the standard value.
【００３６】このような実験から得られた結果を前述し
た廃棄物処理設備の焼却灰処理設備に適用して、廃棄物
の処理を行うには、以下のようにすればよい。廃棄物を
ホッパ１１ａへ投入すると、廃棄物は、流動床炉１１へ
送り込まれ、流動砂１０により粉砕、加熱、焼却されて
焼却灰となる。焼却灰は、排熱回収装置１２で熱を回収
された後、集塵装置１３で捕集されて集積容器１６へ送
り込まれる。一方、流動床炉１１内の流動砂１０は、残
差分離装置１７へ送り込まれて、大型不燃物を除去さ
れ、コンベア１８で流動床炉１１へ戻される。In order to treat the waste by applying the results obtained from such an experiment to the incineration ash treatment equipment of the above-mentioned waste treatment equipment, the following may be performed. When the waste is put into the hopper 11a, the waste is sent to the fluidized bed furnace 11 and pulverized, heated and incinerated by the fluidized sand 10 to be incinerated ash. After the incineration ash has recovered heat in the exhaust heat recovery device 12, it is collected in the dust collector 13 and sent to the accumulation container 16. On the other hand, the fluidized sand 10 in the fluidized bed furnace 11 is sent to the residual separation device 17 to remove large incombustibles, and is returned to the fluidized bed furnace 11 by the conveyor 18.
【００３７】集積容器１６に集められた約１００℃の焼
却灰と、残差分離装置１７で大型不燃物を除去された約
５００〜６５０℃の流動砂１０の一部とは、混合機１に
送り込まれ、温度制御装置は、温度センサ３からの信号
に基づいて、焼却灰と流動砂１０との混合物の温度が３
００〜４５０℃となるように、混合機１の焼却灰と流動
砂１０との混合比を制御する。この焼却灰と流動砂１０
との混合物は、熱処理容器２へ送り込まれて滞留させら
れる。The incineration ash at about 100 ° C. collected in the accumulating container 16 and a part of the fluidized sand 10 at about 500 to 650 ° C. from which large incombustibles have been removed by the residual separation device 17 are stored in the mixer 1. The temperature controller sends the temperature of the mixture of the incinerated ash and the fluidized sand 10 to 3 based on the signal from the temperature sensor 3.
The mixing ratio of the incinerated ash of the mixer 1 and the fluidized sand 10 is controlled so that the temperature is from 00 to 450 ° C. This incineration ash and fluidized sand 10
The mixture of and is sent to the heat treatment container 2 and retained therein.
【００３８】また、雰囲気制御装置は、酸素センサ４か
らの信号に基づいて、混合機１及び熱処理容器２内の酸
素濃度が１．５％以下となるように、窒素供給装置を制
御し、熱処理中にダイオキシン系化合物を再発生させな
いように作動する。Further, the atmosphere control device controls the nitrogen supply device based on the signal from the oxygen sensor 4 so that the oxygen concentration in the mixer 1 and the heat treatment container 2 becomes 1.5% or less, and the heat treatment is performed. It works so as not to regenerate dioxin compounds.
【００３９】熱処理容器２内で２時間程度滞留させた焼
却灰と流動砂１０との混合物は、冷却分離機５へ送り込
まれ、送風機６、冷却ジャケット７、冷却管８により、
冷却分離機５内で急速冷却されながら分離される。分離
された焼却灰は、集塵装置１９で捕集され、流動砂１０
は、コンベア１８により、流動床炉１１内へ戻される。The mixture of the incinerated ash and the fluidized sand 10 retained in the heat treatment container 2 for about 2 hours is sent to the cooling separator 5, and is blown by the blower 6, cooling jacket 7 and cooling pipe 8.
It is separated while being rapidly cooled in the cooling separator 5. The separated incineration ash is collected by the dust collector 19 and the fluidized sand 10
Is returned into the fluidized bed furnace 11 by the conveyor 18.
【００４０】一方、熱処理により重金属や重金属系化合
物の蒸気が発生した場合には、これらの物質は、スクラ
バ９により捕集され、煙突１５から排出される排気に
は、これらの物質が含有されることがない。On the other hand, when vapors of heavy metals and heavy metal compounds are generated by the heat treatment, these substances are collected by the scrubber 9, and the exhaust gas discharged from the chimney 15 contains these substances. Never.
【００４１】これにより、焼却灰中からダイオキシン系
化合物が除去されると共に、熱処理により、重金属や重
金属系化合物の蒸気が発生しても、排気と共に排出され
ることがなくなるのである。As a result, the dioxin-based compound is removed from the incinerated ash, and even if vapor of heavy metal or heavy metal-based compound is generated by the heat treatment, it is not discharged together with the exhaust gas.
【００４２】なお、本実施例では、排熱回収装置１２及
び集塵装置１３で捕集された焼却灰を集積容器１６で集
積した後、混合機１へ送り込んだが、一般的に、排熱回
収装置１２で捕集された焼却灰（高温）よりも集塵装置
１３で捕集された焼却灰（低温）の方のダイオキシン系
化合物残留濃度が問題となる場合が多いので、集塵装置
１３で捕集された焼却灰のみを熱処理しても良い。In this embodiment, the incineration ash collected by the exhaust heat recovery device 12 and the dust collector 13 is accumulated in the accumulating container 16 and then sent to the mixer 1, but the exhaust heat recovery is generally performed. Since the residual concentration of dioxin-based compounds in the incinerated ash (low temperature) collected in the dust collector 13 is often more problematic than in the incinerated ash (high temperature) collected in the device 12, the dust collector 13 You may heat-process only the incineration ash collected.
【００４３】本実施例では、温度センサ３や酸素センサ
４を混合機１に設けたが、熱処理容器に設けても良い。
本実施例では、横型の熱処理容器２を用いたが、図２に
示すように、縦型の熱処理容器３２を用いても良い。Although the temperature sensor 3 and the oxygen sensor 4 are provided in the mixer 1 in this embodiment, they may be provided in the heat treatment container.
Although the horizontal heat treatment container 2 is used in this embodiment, a vertical heat treatment container 32 may be used as shown in FIG.
【００４４】[0044]
【発明の効果】前述したように、本発明による焼却灰熱
処理設備では、高温に加熱した砂と混合機で混合した焼
却灰を熱処理容器内で滞留させた後、分離機で焼却灰と
砂とを分離し、まんべんなく熱処理した焼却灰を容易に
取り出すので、焼却灰中にダイオキシン系化合物が含有
されている場合には、ダイオキシン系化合物は分解さ
れ、焼却灰中に残留するダイオキシン系化合物は、大幅
に低減する。As described above, in the incineration ash heat treatment equipment according to the present invention, after the incineration ash mixed with the sand heated to a high temperature in the mixer is retained in the heat treatment container, the incineration ash and the sand are separated in the separator. Since the incinerated ash that has been separated and heat-treated uniformly is easily taken out, if the dioxin compound is contained in the incinerated ash, the dioxin compound is decomposed and the dioxin compound remaining in the incinerated ash is significantly Reduce to.
【００４５】この熱処理の際に、不活性気体供給手段で
熱処理容器内に不活性気体を送り込んで熱処理容器内の
酸素濃度を低下させると共に、焼却灰冷却手段で熱処理
された焼却灰を急速に冷却することにより、焼却灰の熱
処理効果を大幅に向上させるので、焼却灰の熱処理工程
が短縮し、作業効率が向上する。During this heat treatment, the inert gas supply means sends an inert gas into the heat treatment container to reduce the oxygen concentration in the heat treatment container, and the incineration ash cooling means rapidly cools the heat treated incineration ash. By doing so, the heat treatment effect of the incineration ash is significantly improved, so that the heat treatment process of the incineration ash is shortened and the work efficiency is improved.
【００４６】さらに、酸素センサの測定信号に基づい
て、酸素濃度制御手段が熱処理容器の内部を所定の酸素
濃度となるように不活性気体供給手段を制御し、温度セ
ンサの測定信号に基づいて、混合比制御手段が焼却灰と
砂との混合物を所定の温度となるよう混合機の焼却灰と
砂との混合比を制御することにより、焼却灰の熱処理を
自動的に最適な条件で行うので、熱処理に係る作業が大
幅に減少し、作業員の負担が大幅に軽減する。Further, based on the measurement signal of the oxygen sensor, the oxygen concentration control means controls the inert gas supply means so that the inside of the heat treatment container has a predetermined oxygen concentration, and based on the measurement signal of the temperature sensor, Since the mixing ratio control means controls the mixing ratio of the incineration ash and sand of the mixer so that the mixture of the incineration ash and sand reaches a predetermined temperature, the heat treatment of the incineration ash is automatically performed under optimum conditions. The work involved in heat treatment is greatly reduced, and the burden on workers is greatly reduced.
【００４７】また、熱処理により焼却灰から重金属もし
くは重金属化合物の蒸気が発生した場合には、これら蒸
気を捕集して、排気中にこれらの物質が含有されないよ
うにしたので、重金属もしくは重金属化合物を含有する
焼却灰を何ら問題なく熱処理することができる。Further, when vapors of heavy metals or heavy metal compounds are generated from the incineration ash due to heat treatment, these vapors are collected so that these substances are not contained in the exhaust gas. The contained incineration ash can be heat-treated without any problem.
【図１】本発明による廃棄物処理設備の一実施例の概略
構成図である。FIG. 1 is a schematic configuration diagram of an embodiment of a waste treatment facility according to the present invention.
【図２】本発明による廃棄物処理設備の他の実施例の主
要部の概略構成図である。FIG. 2 is a schematic configuration diagram of a main part of another embodiment of the waste treatment facility according to the present invention.
【図３】本発明による廃棄物処理設備の最適条件を求め
る実験の装置の概略構成図である。FIG. 3 is a schematic configuration diagram of an apparatus for an experiment for obtaining the optimum condition of the waste treatment facility according to the present invention.
【図４】その実験結果を表す図である。FIG. 4 is a diagram showing the experimental results.
１ 混合機 ２，３２ 熱処理容器 ３ 温度センサ ４ 酸素センサ ５ 冷却分離機 ６ 送風機 ７ 冷却ジャケット ８ 冷却管 ９ スクラバ １０ 流動砂１１ 流動床炉 １２ 排熱回収装置 １３ 集塵装置 １４ 誘引通風機 １５ 煙突 １６ 集積容器 １７ 残差分離装置 １８ コンベア １９ 集塵装置 ２０ 誘引通風機 1 Mixer 2 , 32 Heat Treatment Container 3 Temperature Sensor 4 Oxygen Sensor 5 Cooling Separator 6 Blower 7 Cooling Jacket 8 Cooling Pipe 9 Scrubber 10 Fluid Sand 11 Fluidized Bed Furnace 12 Exhaust Heat Recovery Device 13 Dust Collection Device 14 Induction Ventilator 15 Chimney 16 Accumulation Container 17 Residual Separation Device 18 Conveyor 19 Dust Collection Device 20 Induction Ventilator
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｆ２３Ｊ 1/00 Ｂ０９Ｂ 3/00 ＺＡＢ (56)参考文献 特開 昭55−51474（ＪＰ，Ａ) 特開 昭54−141072（ＪＰ，Ａ) 特開 平６−323518（ＪＰ，Ａ) 特開 平５−146772（ＪＰ，Ａ) 特開 平４−347409（ＪＰ，Ａ) 特開 平４−177015（ＪＰ，Ａ) 特開 平４−98008（ＪＰ，Ａ) 特開 平３−267186（ＪＰ，Ａ) 特開 平２−78479（ＪＰ，Ａ) 実開 昭58−23682（ＪＰ，Ｕ) Ｈ．Ｖｏｇｇ ｅｔ ａｌ．，ＲＥＣ ＥＮＴ ＦＩＮＤＩＮＧＳ ＯＮ ＴＨ Ｅ ＦＯＲＭＡＴＩＯＮ ＡＮＤ ＤＥ ＣＯＭＰＯＳＩＴＩＯＮ ＯＦ ＰＣＤ Ｄ／ＰＣＤＦ ＩＮ ＭＵＮＩＣＩＰＡ Ｌ ＳＯＬＩＤ ＷＡＳＴＥ ＩＮＣＩ ＮＥＲＡＴＩＯ，ＷＡＳＴＥ ＭＡＮＥ ＧＥＭＥＮＴ ＆ ＲＥＳＥＡＲＣＨ, 1987年，５，ｐ．285−294 (58)調査した分野(Int.Cl.7，ＤＢ名) B09B 3/00 F23G 7/00 F23J 1/00 Continuation of front page (51) Int.Cl. 7 Identification code FI F23J 1/00 B09B 3/00 ZAB (56) References JP-A-55-51474 (JP, A) JP-A-54-141072 (JP, A) ) JP-A-6-323518 (JP, A) JP-A-5-146772 (JP, A) JP-A-4-347409 (JP, A) JP-A-4-177015 (JP, A) JP-A-4- 98008 (JP, A) JP-A-3-267186 (JP, A) JP-A-2-78479 (JP, A) Actually developed 58-23682 (JP, U) H.M. Vogg et al. , REC ENT FINDINGS ON THE E FORMATION AND DE DE COMPOSITION OF PCD D / PCDF IN MUNICIPAL L SOLID WASTE INN NERATIO, WASTE MANAGEN, 5, 1987 RESEARCH && 1987. 285-294 (58) Fields investigated (Int.Cl. 7 , DB name) B09B 3/00 F23G 7/00 F23J 1/00
Claims (2)
を系外へ取り出し、当該流動砂が当該流動床炉内に戻さ
れる残差分離装置と、 前記残差分離装置で不燃物を取り出された前記流動砂の
一部と前記流動床炉内で発生した排気から回収された焼
却灰と を混合する混合機と、 前記混合機へ連結され且つ当該混合機で混合された前記
焼却灰と前記流動砂とを１時間以上滞留させて当該焼却
灰を熱処理する熱処理容器と、 前記熱処理容器へ連結され且つ混合された前記焼却灰と
前記流動砂とをそれぞれ分離する分離機と、前記分離機で分離された前記流動砂を前記流動床炉内に
戻すコンベアと、 前記熱処理容器へ不活性気体を送り込む不活性気体供給
手段と、 熱処理された前記焼却灰を急速に冷却する焼却灰冷却手
段と、 前記熱処理容器の内部の酸素濃度を測定する酸素センサ
と、 前記混合機で混合された前記焼却灰と前記流動砂との混
合物の温度を測定する温度センサと、 前記酸素センサの測定信号に基づいて前記熱処理容器の
内部の酸素濃度が１．５％以下となるように前記不活性
気体供給手段を制御する酸素濃度制御手段と、 前記温度センサの測定信号に基づいて前記焼却灰と前記
流動砂との混合物の温度が３００〜４５０℃となるよう
に前記混合機の当該焼却灰と当該流動砂との混合比を制
御する混合比制御手段とを備えたことを特徴とする廃棄
物処理設備。1. A fluidized bed furnace for incinerating waste, and a high temperature fluidized sand extracted from the fluidized bed furnace, which is an incombustible material.
Was removed from the system and the fluidized sand was returned to the fluidized bed furnace.
And a residual separation device for removing the incombustible material from the residual separation device.
Burning recovered from exhaust gas generated in part and in the fluidized bed furnace
A mixer for mixing the incinerated ash, a heat treatment container connected to the mixer and heat-treating the incinerated ash by allowing the incinerated ash and the fluidized sand mixed in the mixer to stay for 1 hour or more, A separator for separating the incinerated ash and the fluidized sand, which are connected to a heat treatment container and mixed, and the fluidized sand separated by the separator in the fluidized bed furnace.
A conveyor for returning, an inert gas supply means for sending an inert gas to the heat treatment container, an incineration ash cooling means for rapidly cooling the heat-treated incineration ash, and an oxygen sensor for measuring the oxygen concentration inside the heat treatment container. And a temperature sensor for measuring the temperature of the mixture of the incinerated ash and the fluidized sand mixed in the mixer, and the oxygen concentration inside the heat treatment container is 1.5% based on the measurement signal of the oxygen sensor. Oxygen concentration control means for controlling the inert gas supply means as follows, the incineration ash and the above based on the measurement signal of the temperature sensor
Disposal comprising a mixing ratio control means for controlling the mixing ratio of the incinerated ash of the mixer and the fluidized sand so that the temperature of the mixture with the fluidized sand is 300 to 450 ° C.
Material processing equipment.
属もしくは重金属化合物の蒸気を捕集する捕集手段を備
えたことを特徴とする請求項１に記載の廃棄物処理設
備。2. The waste treatment facility according to claim 1, further comprising a collection means for collecting vapor of heavy metal or heavy metal compound generated from the heat-treated incineration ash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26693593A JP3510300B2 (en) | 1993-10-26 | 1993-10-26 | Waste treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26693593A JP3510300B2 (en) | 1993-10-26 | 1993-10-26 | Waste treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07116628A JPH07116628A (en) | 1995-05-09 |
| JP3510300B2 true JP3510300B2 (en) | 2004-03-22 |
Family
ID=17437734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26693593A Expired - Fee Related JP3510300B2 (en) | 1993-10-26 | 1993-10-26 | Waste treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3510300B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2706634B2 (en) * | 1995-05-25 | 1998-01-28 | 株式会社テクノフロンティア | Recycling method of main ash of stalker type incinerator |
| JP4577728B2 (en) * | 2002-03-15 | 2010-11-10 | 鹿島建設株式会社 | Oil-contaminated soil treatment equipment combined with existing asphalt plant |
| JP2010223469A (en) * | 2009-03-23 | 2010-10-07 | Nippon Mining & Metals Co Ltd | Stoker furnace and method of operating the stoker furnace |
| CN102872690B (en) * | 2012-10-17 | 2014-05-07 | 浙江大学 | Device and method for recovering cyanogen through electric migration and recovering NH3 through oxidation |
| CN106402853B (en) * | 2016-05-30 | 2019-05-21 | 东方电气集团东方锅炉股份有限公司 | A kind of recycling CFB Slag high-temperature residual heat and the system for heat accumulation |
| CN110201597A (en) * | 2017-12-31 | 2019-09-06 | 上海康恒环境股份有限公司 | A kind of flyash curing system blender dedusting damp-eliminating apparatus |
-
1993
- 1993-10-26 JP JP26693593A patent/JP3510300B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| Ｈ．Ｖｏｇｇ ｅｔ ａｌ．，ＲＥＣＥＮＴ ＦＩＮＤＩＮＧＳ ＯＮ ＴＨＥ ＦＯＲＭＡＴＩＯＮ ＡＮＤ ＤＥＣＯＭＰＯＳＩＴＩＯＮ ＯＦ ＰＣＤＤ／ＰＣＤＦ ＩＮ ＭＵＮＩＣＩＰＡＬ ＳＯＬＩＤ ＷＡＳＴＥ ＩＮＣＩＮＥＲＡＴＩＯ，ＷＡＳＴＥ ＭＡＮＥＧＥＭＥＮＴ ＆ ＲＥＳＥＡＲＣＨ，１９８７年，５，ｐ．２８５−２９４ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07116628A (en) | 1995-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5152233A (en) | Method of devolatilizing earth solids and mobile truck for carrying out the method | |
| JP2857358B2 (en) | Method for treating solid residue from refuse incineration apparatus and apparatus utilizing the method | |
| US5413621A (en) | Process for cooling and purifying hot, dust-laden flue gases containing dioxins and other toxic substances | |
| US5402439A (en) | Process and apparatus for disposing of dust-form substances from combustion plants | |
| CA2143403C (en) | Process for the simultaneous smelting of dust and incinerator slag | |
| JP3510300B2 (en) | Waste treatment equipment | |
| JP2502899B2 (en) | Method and apparatus for forming harmless aggregates using harmful waste | |
| JP3103719B2 (en) | Apparatus and method for heat dechlorination of dust ash | |
| JP2000288527A (en) | Waste treatment method | |
| JPH11221545A (en) | Treatment of dust in waste melting furnace and its apparatus | |
| JP4243661B2 (en) | Dust disposal method | |
| JPH0730904B2 (en) | Sludge purification treatment method | |
| JP2725819B2 (en) | Waste incinerator ash treatment method and apparatus | |
| JPH0674888B2 (en) | Treatment of process gas containing halogen compounds | |
| JP3896062B2 (en) | Method of injecting combustible dust into a waste melting furnace | |
| JP4804008B2 (en) | Detoxification treatment method and system for substances containing heavy metals | |
| JP3343328B2 (en) | Apparatus and method for melting wet ash | |
| JP3727908B2 (en) | Soil treatment method | |
| JPH10192811A (en) | Method for treating incineration ash/fly ash of municipal waste | |
| JP3970065B2 (en) | Waste treatment equipment | |
| WO2001087466A1 (en) | Method and apparatus for decomposing halogenated organic compound in exhaust gas | |
| JP4068356B2 (en) | Incineration residue treatment equipment | |
| JPH0533914A (en) | Decomposition method of organic chlorine compound in fly ashes | |
| JP3607803B2 (en) | Method and apparatus for treating melting furnace exhaust gas | |
| JPH0857440A (en) | Fly ash melt treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20031209 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20031225 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080109 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090109 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090109 Year of fee payment: 5 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090109 Year of fee payment: 5 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090109 Year of fee payment: 5 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090109 Year of fee payment: 5 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090109 Year of fee payment: 5 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |