JPH0996410A - Melting furnace of waste matter - Google Patents
Melting furnace of waste matterInfo
- Publication number
- JPH0996410A JPH0996410A JP25375195A JP25375195A JPH0996410A JP H0996410 A JPH0996410 A JP H0996410A JP 25375195 A JP25375195 A JP 25375195A JP 25375195 A JP25375195 A JP 25375195A JP H0996410 A JPH0996410 A JP H0996410A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- heat
- waste
- melt
- retaining
- 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
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は廃棄物の炉底に溜ま
った溶融物を連続して排出できるようにした溶融炉に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a melting furnace capable of continuously discharging a melt of waste collected on the bottom of the furnace.
【０００２】[0002]
【従来の技術】近年、廃棄物を熱分解する方式が多く提
案され、更に熱分解残渣を溶融し体積を減少しかつ有害
物を固化しようとする溶融炉が提案されている。この溶
融された溶融物（溶融スラグ及び溶融金属）を炉外へ排
出する手法として、大きく間欠法と連続法が提案されて
いる。2. Description of the Related Art In recent years, many methods of thermally decomposing waste have been proposed, and further, a melting furnace has been proposed in which the thermal decomposition residue is melted to reduce the volume and solidify harmful substances. An intermittent method and a continuous method have been largely proposed as a method for discharging the melted material (molten slag and molten metal) out of the furnace.
【０００３】間欠法しては、高炉と同じように、ある程
度溶融物が炉内に溜まった後に、ドリルや酸素ガス等で
炉底に孔をあけ出滓し、出し終ったら、マッドで孔を詰
めて閉孔する手法である。In the intermittent method, as in the case of the blast furnace, after a certain amount of melt has accumulated in the furnace, a hole is made in the furnace bottom with a drill, oxygen gas, etc., and when the melting is completed, a hole is made with a mud. This is a method of filling and closing holes.
【０００４】連続法としては、大きく溶融炉から直接排
出する手法（特開昭５５−１０２８１５、特開平６−１
１１３０）と保持炉を介して排出する手法（特開平２−
２９８７１７，特開昭５３−１０３１４，特開昭５３−
６２３７３）とがある。As a continuous method, a method of directly discharging from a melting furnace (Japanese Patent Laid-Open Nos. 55-102815 and 6-1).
1130) and a method of discharging it through a holding furnace (JP-A-2-
298717, JP-A-53-10314, JP-A-53-53
62373).
【０００５】[0005]
【発明が解決しようとする課題】ところで、直接排出す
る手法の特開昭５５−１０２８１５では、溶融状態にし
たものを、保持することなく、そのまま水封槽に落とす
ので、スラグの性状が悪い。また、特開平６−１１１３
０は炉底に孔をあけ、溶融物を出す方式であり、やはり
スラグが十分に結晶化できず、排出されてしまう問題が
あり、利用範囲が狭い。By the way, in Japanese Patent Laid-Open No. 55-102815 of direct discharge, the molten state is dropped into the water-sealed tank as it is without being held, so that the property of the slag is poor. In addition, JP-A-6-1113
No. 0 is a method in which a hole is formed in the furnace bottom and a molten material is discharged, and there is a problem that the slag cannot be sufficiently crystallized and is discharged, and its range of use is narrow.
【０００６】一方、保持炉を介して排出する手法の特開
平２−２９８７１７では、流し口に溶融物の流れを堰止
めるダムを有しており、多少の保持ができるため、スラ
グ性状には効果がある。しかし、大気への放熱で流し口
が閉塞する危険がある。On the other hand, in Japanese Unexamined Patent Publication (Kokai) No. 2-298717, which is a method of discharging through a holding furnace, there is a dam for blocking the flow of the melt at the outlet, and since it can hold a little, it is effective for the slag property There is. However, there is a risk that the heat sink to the atmosphere will block the outlet.
【０００７】また、特開昭５３−１０３１４では、保持
炉と溶融炉を別に設けるため、スラグの均質と調整が可
能である。しかし、別に設けるので、スペースに問題が
ある。また、出滓は間欠である。そして、溶融炉と保持
炉が別々なので、溶融炉の排出口の加熱に保持炉の熱が
寄与できない。Further, in Japanese Patent Laid-Open No. 53-10314, since the holding furnace and the melting furnace are separately provided, the slag can be homogenized and adjusted. However, since it is provided separately, there is a problem in space. Also, the slag is intermittent. Since the melting furnace and the holding furnace are separate, the heat of the holding furnace cannot contribute to the heating of the discharge port of the melting furnace.
【０００８】また、特開昭５３−６２３７３では、燃焼
室からのスラグ出口の頂部を上に上げて、その周りにス
ラグプールを形成し、しばらくプールしてから出してい
る。また、その熱で排出口の詰りも防止している。しか
し、構造上、排出口の上には溶融前のものはおけないの
で、溶融炉に廃棄物を堆積させて溶かすものには利用で
きない。Further, in Japanese Patent Laid-Open No. 53-62373, the top of the slag outlet from the combustion chamber is raised, a slag pool is formed around it, and after being pooled for a while, it is discharged. The heat also prevents clogging of the outlet. However, because of its structure, the unmelted material cannot be placed on the discharge port, so it cannot be used for melting and depositing waste in a melting furnace.
【０００９】上記のように、溶融物の連続排出には閉塞
等種々の問題があり、実用されるに至っていない。本発
明は溶融物が連続的に排出できるようにした廃棄物の溶
融炉を提供することを課題とするものである。As described above, continuous discharge of the melt has various problems such as blockage, and has not been put into practical use. An object of the present invention is to provide a waste melting furnace in which the melt can be continuously discharged.
【００１０】[0010]
【課題を解決するための手段】本発明の廃棄物の溶融炉
は、炉本体内に投入される廃棄物を溶融して炉底に溜め
る廃棄物の溶融炉において、炉本体底部において炉底溶
融物と連通路を介して連通し、前記炉本体に隣接して設
けられた、加熱手段を備えた溶融物の保熱炉で、排出口
を有するものと、この保熱炉に続いて前記炉本体外に設
けられた溶融物の受け取り設備とを備えてなり，前記排
出路の底面と保熱炉の底面とが同じレベルにあり、排出
路の断面積は炉本体に接続される入口部より、保熱炉に
接続される出口部の方が大きくなっている、溶融物を連
続して排出することを特徴とするものである。A waste melting furnace of the present invention is a waste melting furnace that melts waste that is put into the furnace body and accumulates it in the furnace bottom. A heat-retaining furnace for a melt, which is provided adjacent to the furnace body and communicates with a molten material through a communication passage, and has a discharge port; It is provided with a melt receiving facility provided outside the main body, the bottom surface of the discharge passage and the bottom surface of the heat-retaining furnace are at the same level, and the cross-sectional area of the discharge passage is from the inlet portion connected to the furnace body. The outlet part connected to the heat retention furnace is larger, and the melt is continuously discharged.
【００１１】また、保熱炉が炉本体頂部と連通する気密
室内に設けられ、溶融物の受け取り設備が溶融物の水砕
化設備であるものである。また、加熱手段がバーナある
いは誘導加熱装置であるものである。Further, the heat-retaining furnace is provided in an airtight chamber which communicates with the top of the furnace main body, and the facility for receiving the melt is a facility for water granulation of the melt. The heating means is a burner or an induction heating device.
【００１２】[0012]
【発明の実施の形態】図１は本発明の実施の形態の一例
を示す全体構成図である。炉本体１炉内に塊状炭素物質
であるコークスと廃棄物の充填層２を形成すると共に、
このコークス充填層内に主羽口５と副羽口６を介して高
温空気を供給し、溶融炉本体内に投入される廃棄物をガ
ス化及び燃焼させ、不燃物を溶融するようになってい
る。FIG. 1 is an overall configuration diagram showing an example of an embodiment of the present invention. In addition to forming a packed layer 2 of coke, which is a lumpy carbon material, and waste in the furnace body 1,
High temperature air is supplied into the coke packed bed through the main tuyere 5 and the sub tuyere 6 to gasify and combust the waste that is put into the melting furnace main body to melt the incombustible. There is.
【００１３】そして、ガス化した可燃性ガスについて
は、三段目の羽口７からの空気送風によって生成ガス温
度が調整される。溶融物である溶融金属４とスラグ３が
炉底に溜まり、この溶融金属４とスラグ３は連通路１１
を介して、炉本体１に隣接して設けられた保熱炉１２に
送られる。保熱炉１２から樋を介してオーバ・フローし
た溶融物は水封された水砕化設備２７により水砕にされ
る。With regard to the gasified combustible gas, the temperature of the produced gas is adjusted by blowing air from the tuyere 7 in the third stage. Molten metal 4 and slag 3 which are melts are collected at the bottom of the furnace.
And is sent to the heat retention furnace 12 provided adjacent to the furnace body 1. The melt that overflows from the heat-retaining furnace 12 through the gutter is granulated by a water-sealed water granulation facility 27.
【００１４】保熱炉１２は密閉したハウジング２０内に
設けられ、このハウジング２０は連絡管２８を介して炉
頂部のフリーボード部９に連通している。そして、保熱
炉１２はバーナ２１により、また保熱炉からのオーバ・
フロー部である断面Ｖ字状の樋はバーナ２２により加熱
されるようになっている。この際、窒素雰囲気中で、酸
素比を０．５〜０．８程度とした還元燃焼を行う。これ
により、連通路１１のレンガの酸化消耗を防止する。The heat-retaining furnace 12 is provided in a closed housing 20, and the housing 20 communicates with a freeboard section 9 at the top of the furnace via a connecting pipe 28. The heat retention furnace 12 is heated by the burner 21 and
The gutter having a V-shaped cross section, which is a flow portion, is heated by the burner 22. At this time, reducing combustion with an oxygen ratio of about 0.5 to 0.8 is performed in a nitrogen atmosphere. This prevents the bricks in the communication passage 11 from being oxidized and consumed.
【００１５】また、保熱炉１２はバーナ方式で加熱する
他に、誘導加熱コイル２４により、誘導加熱されるよう
にもできる。この場合、溶融物中の溶融金属が加熱さ
れ、溶融物の温度を１５００°Ｃ以上に維持するように
している。In addition to the heating by the burner system, the heat retaining furnace 12 can be induction-heated by the induction heating coil 24. In this case, the molten metal in the melt is heated so that the temperature of the melt is maintained at 1500 ° C or higher.
【００１６】また、２６は開孔機であり、初めて湯を通
す場合や、何らかの問題で連通路が閉じた場合に用いら
れる。次に、図２により、連通路１１の詳細について説
明する。Reference numeral 26 is an opening machine, which is used when the hot water is passed through for the first time or when the communication passage is closed due to some problem. Next, the details of the communication passage 11 will be described with reference to FIG.
【００１７】連通路１１の底面と保熱炉１２の底面とが
同じレベルにあり、連通路の断面積は炉本体に接続され
る入口部１１ａは狭くなっており、保熱炉に接続される
出口部１１ｂの方は大きくなっている。The bottom surface of the communicating passage 11 and the bottom surface of the heat retaining furnace 12 are at the same level, and the cross-sectional area of the communicating passage is narrow at the inlet portion 11a connected to the furnace body, and is connected to the heat retaining furnace. The outlet portion 11b is larger.
【００１８】この構成により、スラグに比べて重量の重
い炉底に溜まる溶融金属４が、連通路１１の底面と保熱
炉１２の底面に必ず存在するようになるので、誘導加熱
に適した構成となる。With this structure, the molten metal 4 that is heavier than the slag and accumulates on the bottom of the furnace is always present on the bottom surface of the communication passage 11 and the bottom surface of the heat-retaining furnace 12, so that it is suitable for induction heating. Becomes
【００１９】この場合の、誘導加熱コイル２５の配置状
態が図３に示され、連通路１１及び保熱炉１２を加熱す
るようになっている。また、バーナ２１，２２による加
熱状態が図４に示されている。The arrangement state of the induction heating coil 25 in this case is shown in FIG. 3, and the communication passage 11 and the heat retaining furnace 12 are heated. Moreover, the heating state by the burners 21 and 22 is shown in FIG.
【００２０】なお、連通路の断面積が入口から出口に向
かって大きくなっており、管状になっている場合に比
べ、詰まりにくくなる。また、満一詰まった場合にも、
開孔しやすい。そして、入口部１１ａが狭くなっている
ので、塊状物が連通路１１に入らないようになってい
る。It should be noted that the cross-sectional area of the communication passage increases from the inlet to the outlet, so that it is less likely to be clogged as compared with the case where it is tubular. Also, when it is full,
Easy to open. Further, since the inlet portion 11a is narrow, the lump does not enter the communication passage 11.
【００２１】次に、溶融物を連続的に排出するための保
熱炉の設定条件について図５により説明する。溶融炉の
炉底にはメタルとスラグが溜まる。Next, the setting conditions of the heat retaining furnace for continuously discharging the melt will be described with reference to FIG. Metal and slag collect on the bottom of the melting furnace.
【００２２】溶融炉の連通管の高さＸより下には常にメ
タルガある。溶融炉でできた残滓にはスラグ分と若干の
メタル分がある。残滓は溶融炉のＸレベルまで下がった
後に保熱炉に流れる。Below the height X of the communicating tube of the melting furnace, there is always a metal moth. The slag produced in the melting furnace contains slag and some metal. The debris flows to the heat-retaining furnace after it has dropped to the X level of the melting furnace.
【００２３】これは、溶融炉の上部から下部に流れる熱
流となり、溶融炉下部のメタルを凝固させない作用があ
る。溶融スラグレベルＹおよび廃棄物の層高Ｈは別の制
御により極力一定に保たれる。This becomes a heat flow flowing from the upper part to the lower part of the melting furnace, and has an action of not solidifying the metal in the lower part of the melting furnace. The molten slag level Y and the waste layer height H are kept as constant as possible by another control.
【００２４】スラグ層の高さＹは、溶融状態によって変
化する。連通管１１からはメタル・スラグの混合物がＸ
レベルから保熱炉１２に流れる。The height Y of the slag layer changes depending on the molten state. From the communication pipe 11, the mixture of metal and slag becomes X.
It flows from the level to the heat retention furnace 12.
【００２５】保熱炉の流れはほぼ止まっているので、メ
タルとスラグは分離する。保熱炉の堰のレベルｂを越え
たスラグは連続的に排出される。堰の下には、スラグを
固める鑄滓機がある。これは外部から密閉されている。Since the flow of the heat retention furnace is almost stopped, the metal and the slag are separated. Slag exceeding the level b of the weir of the heat retention furnace is continuously discharged. Below the weir, there is a slag machine that hardens the slag. It is sealed from the outside.
【００２６】メタルレベルは別の出口から、例えば一日
一回排出される（間欠出湯）。保熱炉の上部はフリーボ
ード部と連通管２８で均圧しているので、比重の関係か
ら下式となる。The metal level is discharged from another outlet, for example, once a day (intermittent hot water). Since the upper part of the heat retention furnace is pressure-equalized with the freeboard part by the communication pipe 28, the following formula is obtained from the relationship of specific gravity.
【００２７】ρＭ×ｂ＋ρＳ（ａ−ｂ）＝ρＭ×Ｘ＋ρ
Ｓ（Ｙ−Ｘ）＋ρＧ（Ｈ−Ｙ） ΔＰ＝ρＧ（Ｈ−Ｙ）は、ρＧが小さいので、比較的小
さい。このような位置ａに排出堰の高さを設け、スラグ
層の高さＹの目標を決め、層高Ｈを一定に保つような操
業をすることによって、連続的な出滓が可能となる。ΡM × b + ρS (ab) = ρM × X + ρ
S (Y−X) + ρG (H−Y) ΔP = ρG (H−Y) is relatively small because ρG is small. By providing the height of the discharge weir at such a position, setting the target of the height Y of the slag layer, and performing the operation so as to keep the layer height H constant, continuous slag is possible.
【００２８】次に、これら装置を使った連続出滓の方法
について説明する。溶融炉の立ち上げ時、保熱炉と溶融
炉の底部連通管１１は、軽量の耐火物で詰められて閉じ
ている。Next, a method of continuous slag using these devices will be described. When the melting furnace is started up, the heat retaining furnace and the bottom communication pipe 11 of the melting furnace are filled with a lightweight refractory material and closed.
【００２９】保熱炉１２はガスバーナで予熱され、別に
投入したスラグを溶解させる。ガスバーナで発生したガ
スは、フリーボード部への連通管２８を通して溶融炉に
排出される。The heat-retaining furnace 12 is preheated by the gas burner and melts the separately charged slag. The gas generated in the gas burner is discharged to the melting furnace through the communication pipe 28 to the freeboard section.
【００３０】保熱炉１２には、保熱炉の炉内圧力調整装
置３２がある。この調整装置は炉内圧力検出端３１と、
目標値の設定部とからなり、フリーボード部への通気抵
抗の調節弁２９，外気への放散弁３０，不活性ガスの吹
き込み調節弁４１などを制御して、保熱炉の炉内圧力を
所定の値に調節する。The heat retaining furnace 12 has a furnace pressure adjusting device 32 for the heat retaining furnace. This adjusting device includes a furnace pressure detection end 31,
It is composed of a target value setting unit, controls the ventilation resistance control valve 29 to the freeboard portion, the diffusion valve 30 to the outside air, the inert gas blowing control valve 41, etc. to control the furnace pressure of the heat retention furnace. Adjust to the desired value.
【００３１】溶融炉にコークスや廃棄物を投入し、羽口
から酸素富化空気を送風して、溶融炉内の温度を上げ
る。廃棄物を投入すると、廃棄物が高温のガスで熱分解
される。廃棄物から発生したガスは溶融炉上部の口から
排出されてガス処理装置に流れる。Coke and waste are put into the melting furnace, and oxygen-enriched air is blown from the tuyere to raise the temperature in the melting furnace. When the waste is added, the waste is pyrolyzed by the hot gas. The gas generated from the waste is discharged from the upper port of the melting furnace and flows into the gas treatment device.
【００３２】炉内部の圧力は、吹き込み流量と発生ガス
量およびガス処理装置側の吸引量によって決まる。通常
の炉内圧力はフリーボード部のゲージ圧力で概ね１００
０mmＨ2 Ｏとする。The pressure inside the furnace is determined by the blowing flow rate, the generated gas amount and the suction amount on the gas processing device side. Normal furnace pressure is approximately 100 gauge pressure of freeboard.
It is set to 0 mmH 2 O.
【００３３】廃棄物でガス化されない残った残滓は、溶
融状態で炉底に溜まり始める。溶融炉と保熱炉とが熱的
に安定した後、ガスバーナを止めて誘導加熱とする。保
熱炉からフリーボード部への連通管２８の弁２９を閉
じ、保熱炉の炉圧制御装置３２で保熱炉の炉内圧力を約
２０００mmＨ2 Ｏに維持する。The remaining residue, which is not gasified by the waste, starts to accumulate in the furnace bottom in a molten state. After the melting furnace and the heat retention furnace are thermally stabilized, the gas burner is stopped and induction heating is performed. The valve 29 of the communication pipe 28 from the heat retaining furnace to the freeboard portion is closed, and the furnace pressure control device 32 of the heat retaining furnace maintains the furnace pressure in the heat retaining furnace at about 2000 mmH 2 O.
【００３４】底部連通管１１を開口機２６で、開口す
る。保熱炉の炉圧制御装置を切り、保熱炉からフリーボ
ード部への連通管２８の弁２９を少しずつ明けて保熱炉
の炉内圧力を溶融炉の圧力に近づける。The bottom communication pipe 11 is opened by the opening machine 26. The furnace pressure control device of the heat-retaining furnace is turned off, and the valve 29 of the communication pipe 28 from the heat-retaining furnace to the freeboard portion is gradually opened to bring the pressure inside the heat-retaining furnace close to the pressure of the melting furnace.
【００３５】保熱炉の出滓口レベルｂは、溶融の目標ス
ラグレベルＹより低くなっている。溶融炉の残滓が溜ま
ってスラグのレベルが目標スラグレベル付近になると、
溶融炉の底部連通管１１を通って、残滓が保熱炉に流れ
る。The outlet level b of the heat retention furnace is lower than the target slag level Y for melting. When the slag level nears the target slag level as the residue of the melting furnace accumulates,
Through the bottom communication pipe 11 of the melting furnace, the residue flows to the heat retention furnace.
【００３６】残滓の主成分はスラグである。しかし、少
量のメタル分（廃棄物の種類によって変わるが、重量比
で約２０％）が混じっている。保熱炉は残滓中のメタル
分を、メタル・スラグの比重差で保熱炉の底部に溜め
る。The main component of the residue is slag. However, a small amount of metal content (depending on the type of waste, about 20% by weight) is mixed. The heat-retaining furnace stores the metal content in the residue at the bottom of the heat-retaining furnace due to the difference in specific gravity of the metal and slag.
【００３７】保熱炉の上部に溜まったスラグは，炉内圧
力を下げ方向に調節することによって保熱炉の出滓口か
ら連続的に排出される。保熱炉の下部に溜まったメタル
は、定期的（廃棄物のメタル分量によるが、例えば一日
一回程度）にメタル口から出湯する。The slag accumulated in the upper part of the heat retention furnace is continuously discharged from the outlet of the heat retention furnace by adjusting the pressure inside the furnace in the downward direction. The metal collected in the lower part of the heat retention furnace is periodically (depending on the amount of waste metal, for example, about once a day) discharged from the metal port.
【００３８】[0038]
【発明の効果】炉本体に隣接して保熱炉を設けたことに
より、この保熱炉が出滓量の変動に対するバッファとし
て機能し、また、保熱炉内の滓及び保熱炉の加熱装置に
より排出路の詰まりが防止でき、こうして溶融物を連続
的に排出することが可能となる。EFFECTS OF THE INVENTION By providing the heat retaining furnace adjacent to the furnace body, this heat retaining furnace functions as a buffer against fluctuations in the amount of slag, and also heats the slag inside the heat retaining furnace and the heat retaining furnace. The device makes it possible to prevent clogging of the discharge channel and thus to continuously discharge the melt.
【００３９】溶融炉でメタル・スラグが混じった液体が
保熱炉で分離される。こうして、メタル・スラグの分離
抽出が可能となる。また、メタルが多く溜まり、誘導加
熱の効率がよい。The liquid in which the metal slag is mixed in the melting furnace is separated in the heat retaining furnace. In this way, it is possible to separate and extract the metal slag. Moreover, a large amount of metal is accumulated, and the efficiency of induction heating is good.
【図１】本発明の実施の態様の一例の全体構成を示す説
明図。FIG. 1 is an explanatory diagram showing an overall configuration of an example of an embodiment of the present invention.
【図２】図１の要部の詳細を示す説明図。FIG. 2 is an explanatory diagram showing details of a main part of FIG.
【図３】誘導加熱状態の説明図。FIG. 3 is an explanatory diagram of an induction heating state.
【図４】ガス加熱状態の説明図。FIG. 4 is an explanatory diagram of a gas heating state.
【図５】スラグ・レベルと保熱炉堰高さとの関係を説明
するための図。FIG. 5 is a diagram for explaining the relationship between the slag level and the height of the heat retention furnace weir.
１…炉本体，２…コークス充填層，１１…連通路、１２
…保熱炉、２７…水砕化装置。DESCRIPTION OF SYMBOLS 1 ... Furnace main body, 2 ... Coke packed bed, 11 ... Communication passage, 12
... Heat-retaining furnace, 27 ... Water granulation device.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大谷 範一 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 鈴木 康夫 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 吉田 朋広 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 山川 裕一 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Noriichi Otani, 1-2, Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd. (72) In-house, Yasuo Suzuki, 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Co., Ltd. (72) Inventor Tomohiro Yoshida 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd. (72) Yuichi Yamakawa 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Inside Steel Pipe Co., Ltd.
Claims (4)
炉底に溜める廃棄物の溶融炉において、 炉本体底部において炉底溶融物と連通路を介して連通
し、前記炉本体に隣接して設けられた、加熱手段を備え
た溶融物の保熱炉で、排出口を有するものと、この保熱
炉に続いて前記炉本体外に設けられた溶融物の受け取り
設備とを備えてなり，前記連通路の底面と保熱炉の底面
とが同じレベルにあり、連通路の断面積は炉本体に接続
される入口部は狭く、保熱炉に接続される出口部は大き
くなっている、 溶融物を連続して排出することを特徴とする廃棄物の溶
融炉。1. A melting furnace for waste that melts waste to be charged into the furnace body and accumulates it at the bottom of the furnace, and communicates with the melt at the bottom of the furnace body through a communication passage at the bottom of the furnace body to the furnace body. A heat-retaining furnace for a melt, which is provided adjacent to and has a heating means, having a discharge port, and a facility for receiving the melt, which is provided outside the furnace body, following the heat-retaining furnace. The bottom surface of the communicating passage and the bottom surface of the heat retaining furnace are at the same level, and the cross-sectional area of the communicating passage is narrow at the inlet portion connected to the furnace body and large at the outlet portion connected to the heat retaining furnace. The melting furnace for waste, characterized in that the melt is discharged continuously.
に設けられ、溶融物の受け取り設備が溶融物の水砕化設
備である請求項１に記載の廃棄物の溶融炉。2. The waste melting furnace according to claim 1, wherein the heat-retaining furnace is provided in an airtight chamber communicating with the top of the furnace body, and the melt receiving facility is a water granulation facility for the melt.
の廃棄物の溶融炉。3. The melting furnace for waste according to claim 1, wherein the heating means is a burner.
が誘導加熱装置である請求項１に記載の廃棄物の溶融
炉。4. The waste melting furnace according to claim 1, wherein the heating means is an induction heating device for heating the discharge passage and the heat retaining furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25375195A JP3343467B2 (en) | 1995-09-29 | 1995-09-29 | Waste melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25375195A JP3343467B2 (en) | 1995-09-29 | 1995-09-29 | Waste melting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0996410A true JPH0996410A (en) | 1997-04-08 |
| JP3343467B2 JP3343467B2 (en) | 2002-11-11 |
Family
ID=17255641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25375195A Expired - Fee Related JP3343467B2 (en) | 1995-09-29 | 1995-09-29 | Waste melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3343467B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004023039A1 (en) * | 2002-09-04 | 2004-03-18 | Sumitomo Metal Industries, Ltd. | Method and apparatus for treating waste |
-
1995
- 1995-09-29 JP JP25375195A patent/JP3343467B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004023039A1 (en) * | 2002-09-04 | 2004-03-18 | Sumitomo Metal Industries, Ltd. | Method and apparatus for treating waste |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3343467B2 (en) | 2002-11-11 |
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