JPH0849987A - Slag air cooling device for waste melting furnace - Google Patents
Slag air cooling device for waste melting furnaceInfo
- Publication number
- JPH0849987A JPH0849987A JP20815594A JP20815594A JPH0849987A JP H0849987 A JPH0849987 A JP H0849987A JP 20815594 A JP20815594 A JP 20815594A JP 20815594 A JP20815594 A JP 20815594A JP H0849987 A JPH0849987 A JP H0849987A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- air
- cooling
- melting furnace
- cooling device
- 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.)
- Pending
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
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Furnace Details (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、廃棄物溶融処理炉より
排出される溶融スラグを空冷により固形化するためのス
ラグ空冷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 slag air cooling device for solidifying molten slag discharged from a waste melting treatment furnace by air cooling.
【０００２】[0002]
【従来の技術】都市ゴミ焼却残渣，汚泥焼却残渣等の廃
棄物をアーク式の溶融処理炉により溶融し、その溶融ス
ラグを水槽中に落下させて急冷し小塊状に固形化してか
ら埋立地に投棄することにより、該廃棄物中から重金属
類、その他の有害物質が地中に溶出する虞れをなくし、
二次公害発生を防止しようとすることが従来から行なわ
れている。2. Description of the Related Art Wastes such as municipal waste incineration residue and sludge incineration residue are melted in an arc type melting treatment furnace, and the molten slag is dropped into a water tank and rapidly cooled to solidify into small blocks before being landfilled. By discarding, there is no risk of heavy metals and other harmful substances being eluted from the waste into the ground,
It has been conventionally attempted to prevent the occurrence of secondary pollution.
【０００３】[0003]
【発明が解決しようとする課題】ところで上記のように
溶融スラグを水中に落下させ急冷する固形化方法では多
量の冷却水を必要とし、その冷却により汚染された水の
処理が新らたな問題となるものであった。また、水冷さ
れたスラグ中には繊維状あるいは多孔性の形態のスラグ
が多く混在し、スラグの強度を弱めたり、スラグの取扱
に安全上の問題が生じるものであった。The solidification method of dropping molten slag into water and quenching it as described above requires a large amount of cooling water, and the treatment of water contaminated by the cooling is a new problem. It was something that In addition, a large amount of fibrous or porous slag is mixed in the water-cooled slag, which weakens the strength of the slag and causes a safety problem in handling the slag.
【０００４】そこで溶融スラグをルツボに受けて空気中
で自然放冷または強制空冷することが考えられたが、空
冷するには概して長時間を必要とするので、ルツボを循
環使用するための長大なエンドレスコンベヤを必要と
し、設備コスト，スペースが要るという問題があると共
に、空冷によっては溶融スラグを急冷し難いために、ス
ラグが大きな塊状になり、スラグ中には金属も混入して
いるのでその塊状スラグの破砕は容易でなく、その後の
搬送，貯留，再利用，埋立て等の処理を難くするという
問題があった。Therefore, it has been considered that the crucible receives the molten slag and is naturally cooled or air-cooled in the air. However, since it generally takes a long time to cool the air, it is very long for circulating and using the crucible. There is a problem that an endless conveyor is required, equipment cost and space are required, and it is difficult to rapidly cool the molten slag by air cooling, so the slag becomes a large lump and metal is also mixed in the slag. The crushing of massive slag is not easy, and there is a problem that it is difficult to carry out subsequent processes such as transportation, storage, reuse, and landfill.
【０００５】[0005]
【課題を解決するための手段】本発明の廃棄物溶融炉の
スラグ空冷装置は上記課題を解決しようとするもので、
内部に冷却媒体を流通させた振動コンベヤの載荷面に廃
棄物溶融炉の溶融スラグを流出せて該スラグを振動によ
り搬送しつつ冷却させるように構成したことを特徴とす
る。The slag air-cooling device for a waste melting furnace of the present invention is intended to solve the above-mentioned problems.
It is characterized in that the molten slag of the waste melting furnace is caused to flow out to the loading surface of the vibration conveyor in which the cooling medium is circulated, and the slag is cooled while being conveyed by vibration.
【０００６】さらに本発明は上記廃棄物溶融炉のスラグ
空冷装置において、振動コンベヤの載荷面を階段状に形
成したことを特徴とする。Further, the present invention is characterized in that, in the slag air-cooling device for the waste melting furnace, the loading surface of the vibration conveyor is formed in a step shape.
【０００７】さらに本発明は上記廃棄物溶融炉のスラグ
空冷装置において、振動コンベヤの載荷面を階段状に形
成し、その段差壁面内から冷却用空気を吹出させるよう
にしたことを特徴とする。Further, the present invention is characterized in that, in the slag air-cooling device for the waste melting furnace, the loading surface of the vibration conveyor is formed in a stepped shape, and the cooling air is blown out from the step wall surface.
【０００８】[0008]
【作用】スラグが載荷面上で振動することにより空気と
の接触が活発になりスラグ表面から空気中に熱が短時間
で放出され急冷が可能となる。また、載荷面を階段状に
することで表面積を増大させ、さらにその段差壁面内か
ら冷却空気を吹出させることにより一層冷却能力を上げ
得る。By vibrating the slag on the loading surface, contact with the air becomes active, and heat is released from the slag surface into the air in a short time to enable rapid cooling. Further, the loading surface is stepped to increase the surface area, and the cooling air can be blown out from the step wall surface to further enhance the cooling capacity.
【０００９】[0009]
【実施例】次に本発明に係る廃棄物溶融炉のスラグ空冷
装置の一実施例を図面と共に説明する。図１にこの装置
を部分断面図にて示し、図２はその平面図、図３は左側
面図である。基台１上の四隅には４本のコイルバネ２を
垂設している。３は振動コンベヤで、該振動コンベヤ３
は両側面両端寄りに突設させた支持片４を前記コイルバ
ネ２上に乗せることにより該コイルバネ２を介して支持
させる。５は該振動コンベヤ３の両側面に固設された振
動モータで、該振動モータ５を作動させることにより振
動コンベヤ３をコイルバネ２上で振動させ得る。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the slag air cooling apparatus for a waste melting furnace according to the present invention will be described below with reference to the drawings. FIG. 1 is a partial sectional view of this device, FIG. 2 is its plan view, and FIG. 3 is its left side view. Four coil springs 2 are vertically provided at four corners on the base 1. 3 is a vibration conveyor, and the vibration conveyor 3
Is mounted on the coil spring 2 by supporting pieces 4 which are provided so as to project toward both ends of the coil spring 2 so as to be supported via the coil spring 2. Reference numeral 5 denotes a vibration motor fixedly provided on both side surfaces of the vibration conveyor 3, and by operating the vibration motor 5, the vibration conveyor 3 can be vibrated on the coil spring 2.
【００１０】振動コンベヤ３はその載荷面６を階段状に
形成している。即ち、振動コンベヤ３の上面を階段状に
形成し、その各階面７ａ〜７ｇに夫々耐熱性の載荷板６
ａ〜６ｇを両側縁をクランプ板８により挟着することに
より固定し、各載荷板６ａ〜６ｇ間に段差を生ぜしめて
載荷面６を階段状に形成している。載荷板６ａ〜６ｇは
下面に冷却を促進させるための突条（放熱用フィン）が
一体的に形成されている。そして載荷板６ａ〜６ｇの下
面と各階面７ａ〜７ｇとの間に空隙９ａ〜９ｇを形成
し、該各空隙９ａ〜９ｇに高圧空気ヘッダ１０より給気
ホース１１を配設すると共に、該載荷面６の段差壁面に
該載荷板６ａ〜６ｇの前縁を露呈させることにより該各
空隙９ａ〜９ｇと連通するノズル孔１２，１２，１２，
…が上記突条間に形成されるようにし、高圧空気ヘッダ
１０より該各空隙９ａ〜９ｇに冷却用空気を圧送し該各
載荷板６ａ〜６ｇを下面より冷却すると共に、該冷却用
空気を該ノズル孔１２，１２，１２，…よりそのまま吹
出させる。The loading surface 6 of the vibrating conveyor 3 is formed stepwise. That is, the upper surface of the vibration conveyor 3 is formed in a staircase shape, and the heat-resistant loading plates 6 are provided on the respective floors 7a to 7g.
The a to 6g are fixed by sandwiching both side edges by the clamp plates 8, and a step is formed between the respective loading plates 6a to 6g to form the loading surface 6 in a stepped shape. The loading plates 6a to 6g are integrally formed on their lower surfaces with protrusions (radiating fins) for promoting cooling. Then, voids 9a to 9g are formed between the lower surfaces of the loading plates 6a to 6g and the floors 7a to 7g, and the air supply hose 11 is arranged from the high pressure air header 10 in each of the voids 9a to 9g and the loading is performed. Nozzle holes 12, 12, 12, which communicate with the respective voids 9a-9g by exposing the front edges of the loading plates 6a-6g on the stepped wall surface of the surface 6.
Are formed between the ridges, and cooling air is pressure-fed from the high-pressure air header 10 to each of the gaps 9a to 9g to cool each of the loading plates 6a to 6g from the lower surface, and at the same time, to cool the cooling air. The nozzle holes 12, 12, 12, ...
【００１１】また、１５は該振動コンベヤ３の上方に設
けられた空気ヘッダで、該空気ヘッダ１５の先端部およ
び下面には載荷面６上へ向けて冷却用空気を吹出すノズ
ル１６，１６，１６，…が突設されている。また、１７
は該振動コンベヤ３の下側で基台１中央に設けられた空
気ヘッダで、該空気ヘッダ１７には上面に複数のノズル
１８，１８，１８，…が突設され、該ノズル１８，１
８，１８，…から振動コンベヤ３の下面に向けて冷却用
空気を吹出すようにしている。Reference numeral 15 is an air header provided above the vibrating conveyor 3, and nozzles 16, 16 for blowing cooling air toward the loading surface 6 are provided at the tip and the lower surface of the air header 15. 16, ... are projected. Also, 17
Is an air header provided in the center of the base 1 below the vibration conveyor 3. The air header 17 has a plurality of nozzles 18, 18, 18, ...
The cooling air is blown from 8, 18, ... To the lower surface of the vibration conveyor 3.
【００１２】しかして、廃棄物溶融炉（図示せず）の溶
融スラグを図４に示したように排出樋２０から載荷板６
ａ上に流出させると共に、振動モータ５の作動により該
振動コンベヤ３を振動させ、その振動によりその載荷面
上のスラグを激しく振動させ空気との接触を活発にして
急冷させつつ矢印の方向に進行させる。そのとき載荷板
６ａ〜６ｇは空隙９ａ〜９ｇを流れる空気により冷却さ
れていると共に、その空気がノズル孔１２，１２，１
２，…より吹出して載荷板６ａ〜６ｇの上面をはうよう
に流れることからスラグはその空気流と衝突し冷却効果
を高めると共に、その空気流が該スラグを載荷面上から
浮上させる。スラグを浮上させることによりスラグから
載荷面への直接接触による熱伝導を防ぎ載荷面の温度上
昇を抑え耐久性を向上させる。そして該スラグはノズル
１６，１６，１６，…およびノズル１８，１８，１８，
…から吹出す空気が吹付けられることによっても空冷さ
れる。こうした急冷により溶融スラグにクラックが入り
載荷面６ｂ〜６ｇ上で序々に小粒状に固形化してその階
段を下降してゆく。このように載荷面６を階段状に形成
したことにより載荷面６の表面積が増すと共にスラグを
順次段上から落下させ、より激しく振動させることがで
きるので冷却能力を高め得る。Then, the molten slag of the waste melting furnace (not shown) is transferred from the discharge gutter 20 to the loading plate 6 as shown in FIG.
While flowing out to a, the vibration conveyor 5 is vibrated by the operation of the vibration motor 5, and the vibration violently vibrates the slag on the loading surface to actively contact the air and rapidly cool it to proceed in the direction of the arrow. Let At that time, the loading plates 6a to 6g are cooled by the air flowing through the gaps 9a to 9g, and the air is discharged from the nozzle holes 12, 12, 1.
The air blows out from 2, ... and flows over the upper surfaces of the loading plates 6a to 6g, so that the slag collides with the air flow to enhance the cooling effect, and the air flow causes the slag to float above the loading surface. By floating the slag, heat conduction due to direct contact from the slag to the loading surface is prevented, temperature rise of the loading surface is suppressed, and durability is improved. The slag is composed of nozzles 16, 16, 16, ... And nozzles 18, 18, 18,
It is also air-cooled by the air blown from. Due to such rapid cooling, the molten slag is cracked and gradually solidifies into small particles on the loading surfaces 6b to 6g, and the stairs descend. By thus forming the loading surface 6 in a stepwise manner, the surface area of the loading surface 6 is increased, and the slag can be sequentially dropped from the step and vibrated more violently, so that the cooling capacity can be enhanced.
【００１３】なお、実施例では載荷板６ａ〜６ｇの下面
を冷却する空気をそのままノズル孔１２，１２，１２，
…より吹出させるようにしたが、載荷板６ａ〜６ｇ中に
水を冷却媒体として循環させることで該載荷板６ａ〜６
ｇを冷却するようにしてもよい。その場合該冷却水はス
ラグと直接接触するものでないので、汚染の心配がない
ことは勿論である。また、載荷面６は必ずしもこの実施
例に示したような下傾階段状にしなくてもよく、例えば
上傾斜面状にして振動によりスラグがその斜面を上昇し
てゆくようにしたり、水平面状にして、該載荷面６上に
おけるスラグの滞留時間を調節することでスラグ排出量
に応じてさらに短いコンベヤにて固形化が達成されるよ
うにするのもよい。In the embodiment, the air for cooling the lower surfaces of the loading plates 6a to 6g is directly supplied to the nozzle holes 12, 12, 12 ,.
Although it is made to blow out from the loading plates 6a to 6g, by circulating water as a cooling medium in the loading plates 6a to 6g.
You may make it cool g. In that case, since the cooling water does not come into direct contact with the slag, there is no concern of contamination. Further, the loading surface 6 does not necessarily have to have a downwardly inclined stepped shape as shown in this embodiment. For example, the loading surface 6 may have an upwardly inclined surface so that the slag can move up the inclined surface due to vibration, or a horizontal surface. By adjusting the residence time of the slag on the loading surface 6, solidification may be achieved by a shorter conveyor according to the slag discharge amount.
【００１４】[0014]
【発明の効果】このように本発明に係るスラグ空冷装置
は、振動コンベヤ上にてスラグを振動させ冷却するもの
であるので、空気との接触が活発となつて急冷を可能な
らしめると共に、その振動および急冷のために小粒状に
固形化し、爾後の取扱を容易ならしめると共に、短時間
で冷却，固形化が行なわれるのでコンベヤが長大化する
ことがなく設置スペースを要しないので設備コストも軽
減できるなど有益な効果がある。As described above, since the slag air-cooling device according to the present invention cools the slag by vibrating it on the vibrating conveyor, the slag can be rapidly cooled by vigorous contact with the air. It solidifies into small particles due to vibration and rapid cooling, making it easy to handle afterwards, and because cooling and solidification is performed in a short time, the conveyor does not grow in length and installation space is not required, so equipment costs are also reduced. It has a beneficial effect.
【図１】本発明に係るスラグ空冷装置の一実施例を示す
部分断面側面図。FIG. 1 is a partial cross-sectional side view showing an embodiment of a slag air cooling device according to the present invention.
【図２】図１の平面図。FIG. 2 is a plan view of FIG.
【図３】図１のＡ−Ａ線断面側面図。3 is a cross-sectional side view taken along the line AA of FIG.
【図４】使用状態を示した要部斜視図。FIG. 4 is a perspective view of a main part showing a usage state.
１ 基台 ２ コイルバネ ３ 振動コンベヤ ５ 振動モータ ６ 載荷面 ６ａ〜６ｇ 載荷板 ９ａ〜９ｇ 空隙 １２ ノズル孔 ２０ 排出樋 1 Base 2 Coil Spring 3 Vibration Conveyor 5 Vibration Motor 6 Loading Surface 6a-6g Loading Plate 9a-9g Void 12 Nozzle Hole 20 Discharge Trough
Claims (3)
ヤの載荷面に廃棄物溶融炉の溶融スラグを流出せて該ス
ラグを振動により搬送しつつ冷却させるように構成した
ことを特徴とする廃棄物溶融炉のスラグ空冷装置。1. A waste characterized in that a molten slag of a waste melting furnace is caused to flow out to a loading surface of a vibration conveyor in which a cooling medium is circulated, and the slag is cooled while being conveyed by vibration. Slag air-cooling device for material melting furnace.
た請求項１に記載の廃棄物溶融炉のスラグ空冷装置。2. The slag air cooling device for a waste melting furnace according to claim 1, wherein the loading surface of the vibration conveyor is formed in a step shape.
し、その段差壁面内から冷却用空気を吹出させるように
した請求項１に記載の廃棄物溶融炉のスラグ空冷装置。3. The slag air cooling device for a waste melting furnace according to claim 1, wherein the loading surface of the vibration conveyor is formed in a step shape, and the cooling air is blown out from inside the step wall surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20815594A JPH0849987A (en) | 1994-08-08 | 1994-08-08 | Slag air cooling device for waste melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20815594A JPH0849987A (en) | 1994-08-08 | 1994-08-08 | Slag air cooling device for waste melting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0849987A true JPH0849987A (en) | 1996-02-20 |
Family
ID=16551566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20815594A Pending JPH0849987A (en) | 1994-08-08 | 1994-08-08 | Slag air cooling device for waste melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0849987A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007314854A (en) * | 2006-05-29 | 2007-12-06 | Nippon Steel Corp | Method for treating high temperature slag |
| JP2008013784A (en) * | 2006-07-03 | 2008-01-24 | Nippon Steel Corp | Apparatus for treating high-temperature slag |
-
1994
- 1994-08-08 JP JP20815594A patent/JPH0849987A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007314854A (en) * | 2006-05-29 | 2007-12-06 | Nippon Steel Corp | Method for treating high temperature slag |
| JP4719082B2 (en) * | 2006-05-29 | 2011-07-06 | 新日本製鐵株式会社 | High temperature slag treatment method |
| JP2008013784A (en) * | 2006-07-03 | 2008-01-24 | Nippon Steel Corp | Apparatus for treating high-temperature slag |
| JP4719091B2 (en) * | 2006-07-03 | 2011-07-06 | 新日本製鐵株式会社 | High temperature slag treatment equipment |
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