JPH053864Y2 - - Google Patents
Info
- Publication number
- JPH053864Y2 JPH053864Y2 JP9776788U JP9776788U JPH053864Y2 JP H053864 Y2 JPH053864 Y2 JP H053864Y2 JP 9776788 U JP9776788 U JP 9776788U JP 9776788 U JP9776788 U JP 9776788U JP H053864 Y2 JPH053864 Y2 JP H053864Y2
- Authority
- JP
- Japan
- Prior art keywords
- main body
- combustion tower
- cooling water
- cooling
- tower main
- 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 - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 claims description 48
- 239000000498 cooling water Substances 0.000 claims description 45
- 238000001816 cooling Methods 0.000 claims description 25
- 238000009628 steelmaking Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Incineration Of Waste (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、製鋼炉内で発生する排ガスを燃焼さ
せる製鋼炉用排ガス燃焼塔装置に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an exhaust gas combustion tower device for a steelmaking furnace that burns exhaust gas generated within the steelmaking furnace.
（従来の技術）
従来、製鋼炉で発生した高温ガスを燃焼塔内で
燃焼させ、その後、冷却して集塵装置へと案内す
る製鋼設備があり、第３図に示される如く、燃焼
塔１０１は上下密閉状円筒体とされた中空状の燃
焼塔本体１０２を備え、上端部には製鋼炉で発生
したガスが流入される流入ダクト１０３が連通状
に設けられ、下端部には本体１０２内のガスを流
出させる流出ダクト１０４が連通状に設けられて
いた。そして燃焼塔本体１０２は内外２重の鉄板
１０５，１０６溶接構造体よりなり、内外の鉄板
１０５，１０６間に冷却水が通過する流路１０７
が構成され、該流路１０７は上下方向複数に分割
構成されている。また各流路１０７は冷却効率を
向上すべく下端の流入口１０８から上端の流出口
１０９に至る螺旋状に構成され、各流入口１０８
は冷却水循環装置１１０の給水管１１１側に接続
され、各流出口１０９は冷却水循環装置１１０の
排水管１１２側に接続され、これらは本体２を冷
却する冷却装置１１３を構成している。そして、
製鋼炉で発生した高温ガス（約1000℃）は流入ダ
クト１０３を通じて燃焼塔１０１内に流入され、
燃焼塔１０１内で燃焼され、その後、流出ダクト
１０４より流出される。この燃焼塔１０１内の高
温ガス通過時に、高温に加熱された本体２の内側
鉄板１０５が冷却装置１１３によつて供給される
冷却水により冷却される。(Prior Art) Conventionally, there is a steelmaking facility in which high-temperature gas generated in a steelmaking furnace is combusted in a combustion tower, then cooled and guided to a dust collector.As shown in FIG. is equipped with a hollow combustion tower main body 102 that is a vertically sealed cylindrical body, and an inflow duct 103 through which gas generated in the steelmaking furnace flows is provided at the upper end in a continuous manner, and the inside of the main body 102 is provided at the lower end. An outflow duct 104 was provided in communication to allow the gas to flow out. The combustion tower main body 102 is made up of a welded structure with double inner and outer steel plates 105 and 106, and a flow path 107 through which cooling water passes between the inner and outer steel plates 105 and 106.
The flow path 107 is divided into a plurality of sections in the vertical direction. In addition, each flow path 107 is configured in a spiral shape from an inlet 108 at the lower end to an outlet 109 at the upper end in order to improve cooling efficiency.
are connected to the water supply pipe 111 side of the cooling water circulation device 110, and each outlet 109 is connected to the drain pipe 112 side of the cooling water circulation device 110, and these constitute a cooling device 113 that cools the main body 2. and,
High-temperature gas (approximately 1000°C) generated in the steelmaking furnace flows into the combustion tower 101 through the inflow duct 103.
It is combusted in the combustion tower 101 and then flows out through the outflow duct 104. When the high-temperature gas passes through the combustion tower 101, the inner steel plate 105 of the main body 2, which is heated to a high temperature, is cooled by cooling water supplied by the cooling device 113.
（考案が解決しようとする課題）
しかしながら、上記構造の燃焼塔装置にあつて
は、燃焼塔本体１０２の流路１０７部構造が複雑
で製作コストがかさむと共に、水洩れ頻度が多
く、メインテナンスコストが高くつく欠点があつ
た。また水洩れの修理作業に際し、内外鉄板１０
５，１０６間での溶接作業を伴う場合にあつては
作業性が悪い欠点があつた。さらに頻繁な水洩れ
トラブルの発生により製鋼炉の稼働率の低下を招
いていた。(Problems to be solved by the invention) However, in the case of the combustion tower device having the above structure, the structure of the flow passage 107 of the combustion tower main body 102 is complicated and the manufacturing cost is high, water leaks frequently, and the maintenance cost is high. It had an expensive drawback. In addition, when repairing water leaks, 10 steel plates inside and outside
In cases where welding work is required between 5 and 106 parts, there is a drawback of poor workability. Furthermore, frequent water leakage problems were causing a decline in the operating rate of the steelmaking furnace.
そこで、本考案は上記問題点に鑑み、トラブル
が発生し難く、メインテナンス性のよい安価な燃
焼塔装置を提供することを目的とする。 SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide an inexpensive combustion tower device that is less likely to cause trouble and has good maintainability.
（課題を解決するための手段）
その技術的手段は、中空状の燃焼塔本体９の上
端部に製鋼炉１１内で発生するガスが流入される
流入路５が設けられ、下端部に燃焼塔本体９内の
ガスを流出させ集塵装置４に案内する流出路６が
設けられ、燃焼塔本体９を冷却する冷却装置１０
が備えられてなるものにおいて、前記燃焼塔本体
９が一重の鉄板構造体よりなり、前記冷却装置１
０は燃焼塔本体９の外表面に冷却水を供給する冷
却水供給手段１１と、流下した冷却水を回収すべ
く燃焼塔本体９の下端に設けられた受樋部１２
と、受樋部１２で回収された冷却水を再度冷却水
供給手段１１に供給する循環手段１３とを備え、
燃焼塔本体９の上方に水蒸気排出用の排出フード
２１が設けられてなる点にある。(Means for solving the problem) The technical means is that an inlet passage 5 into which gas generated in the steelmaking furnace 11 flows is provided at the upper end of the hollow combustion tower main body 9, and a combustion tower is provided at the lower end. A cooling device 10 is provided with an outflow path 6 for causing gas in the main body 9 to flow out and guiding it to the dust collector 4, and cooling the combustion tower main body 9.
in which the combustion tower main body 9 is made of a single iron plate structure, and the cooling device 1 is
Reference numeral 0 denotes a cooling water supply means 11 that supplies cooling water to the outer surface of the combustion tower main body 9, and a receiving gutter 12 provided at the lower end of the combustion tower main body 9 to collect cooling water that has flowed down.
and a circulation means 13 for again supplying the cooling water collected in the receiving gutter section 12 to the cooling water supply means 11,
An exhaust hood 21 for discharging water vapor is provided above the combustion tower main body 9.
（作用）
本考案によれば、燃焼塔本体９が一重の鉄板構
造体よりなるため、冷却装置１０の冷却水供給手
段１１によつて、直接、外部から燃焼塔本体９の
外表面に冷却水を供給することにより、燃焼塔本
体９の冷却が行なえる。そして水蒸気は排出フー
ド２１により回収されて排出され、流下した冷却
水は受樋部１２で回収され、循環手段１３により
再度冷却水供給手段１１に供給される。(Function) According to the present invention, since the combustion tower main body 9 is made of a single steel plate structure, cooling water is directly supplied from the outside to the outer surface of the combustion tower main body 9 by the cooling water supply means 11 of the cooling device 10. By supplying this, the combustion tower main body 9 can be cooled. The water vapor is then collected and discharged by the exhaust hood 21, and the cooling water that has flowed down is collected by the receiving gutter 12 and is again supplied to the cooling water supply means 11 by the circulation means 13.
（実施例）
以下、本考案の実施例を図面に基づいて説明す
ると、第２図は製鋼設備の一部を示し、１は製鋼
炉としての電気炉、２は燃焼塔、３はガスクーラ
ー、４は集塵装置であり、電気炉１で発生するガ
スを燃焼塔２に案内すべく、電気炉１上端部と燃
焼塔２上端部とが案内ダクト５により接続状とさ
れている。また、燃焼塔２から流出するガスをガ
スクーラー３に案内すべく、燃焼塔２下端部とガ
スクーラー３下端部とが冷却ダクト６により互い
に接続され、ガスクーラー３上端部より排出され
るガスは案内ダクト７等を通じて集塵装置４に案
内されるよう構成されている。(Example) Hereinafter, an example of the present invention will be described based on the drawings. Fig. 2 shows a part of steel making equipment, 1 is an electric furnace as a steel making furnace, 2 is a combustion tower, 3 is a gas cooler, 4 is a dust collector, and the upper end of the electric furnace 1 and the upper end of the combustion tower 2 are connected by a guide duct 5 in order to guide gas generated in the electric furnace 1 to the combustion tower 2. Further, in order to guide the gas flowing out from the combustion tower 2 to the gas cooler 3, the lower end of the combustion tower 2 and the lower end of the gas cooler 3 are connected to each other by a cooling duct 6, and the gas discharged from the upper end of the gas cooler 3 is It is configured to be guided to the dust collector 4 through a guide duct 7 and the like.
そして前記冷却ダクト６は水冷方式で冷却さ
れ、案内ダクト７は空冷方式で冷却されるよう構
成されている。 The cooling duct 6 is cooled by water cooling, and the guide duct 7 is cooled by air cooling.
前記燃焼塔２は第１図に示される如く、上下密
閉状円筒体とされた中空状の燃焼塔本体９を備
え、該本体９は一重の鉄板溶接構造体よりなる。
そして本体９の上端部一側に接続された案内ダク
ト５により電気炉１内で発生するガスを流入させ
る流入路を構成している。また本体９下端部一側
に接続された冷却ダクト６により本体９内のガス
を流出させる流出路を構成している。 As shown in FIG. 1, the combustion tower 2 includes a hollow combustion tower main body 9 which is a vertically sealed cylindrical body, and the main body 9 is made of a single welded steel plate structure.
A guide duct 5 connected to one side of the upper end of the main body 9 constitutes an inflow path through which gas generated within the electric furnace 1 flows. Further, a cooling duct 6 connected to one side of the lower end of the main body 9 constitutes an outflow path through which gas within the main body 9 flows out.
１０は本体９を冷却するための冷却装置で、本
体９の外表面に冷却水を供給する冷却水供給手段
１１と、本体９に沿つて流下した冷却水を回収す
べく本体９の上下方向中間部及び下端に夫々設け
られた受樋部１２と、各受樋部１２で回収された
冷却水を再度冷却水供給手段１１に供給する循環
手段１３とを備えてなる。 Reference numeral 10 denotes a cooling device for cooling the main body 9, which includes a cooling water supply means 11 that supplies cooling water to the outer surface of the main body 9, and a cooling water supply means 11 that supplies cooling water to the outer surface of the main body 9, and a cooling water supply means 11 that supplies cooling water to the outer surface of the main body 9; The receiving gutter section 12 is provided at the lower end and the lower end, and a circulation means 13 for supplying the cooling water collected in each receiving gutter section 12 to the cooling water supply means 11 again.
冷却水供給手段１１は本体９外周面と適宜間隙
を有して周囲に配設された複数の上下方向の縦管
１４と複数の周方向の横管１５とを備えてなり、
各縦管１４と各横管１５の接合部は互いに連通状
とされている。また各縦管１４もしくは各横管１
５に適宜間隔を有して本体９外表面に指向する複
数のノズル部１６が備えられている。そして縦管
１４もしくは横管１５に循環手段１３の給水管１
７が接続されている。一方、各受樋部１２には循
環手段１３の回収管１８が接続されている。１９
は回収された冷却水を一旦貯水するための回収ロ
ート部である。また循環手段１３には給水管１７
に冷却水を送る給水ポンプ等が具備されている。 The cooling water supply means 11 includes a plurality of vertical vertical pipes 14 and a plurality of circumferential horizontal pipes 15 arranged around the outer peripheral surface of the main body 9 with appropriate gaps,
The joint portions of each vertical tube 14 and each horizontal tube 15 are in communication with each other. Also, each vertical pipe 14 or each horizontal pipe 1
5 is provided with a plurality of nozzle portions 16 directed toward the outer surface of the main body 9 at appropriate intervals. Then, the water supply pipe 1 of the circulation means 13 is connected to the vertical pipe 14 or the horizontal pipe 15.
7 is connected. On the other hand, a recovery pipe 18 of the circulation means 13 is connected to each receiving gutter section 12 . 19
is a collection funnel for temporarily storing the collected cooling water. In addition, the circulation means 13 has a water supply pipe 17.
The system is equipped with a water supply pump, etc. that sends cooling water to the area.
前記燃焼塔本体９の上面には、防爆弁２０が設
けられており、本体９上方を覆つて水蒸気排出用
の排出フード２１が設けられている。 An explosion-proof valve 20 is provided on the upper surface of the combustion tower main body 9, and an exhaust hood 21 for discharging water vapor is provided to cover the upper part of the main body 9.
本考案の実施例は以上のように構成されてお
り、電気炉１で発生した高温の排ガスは案内ダク
ト５を通じて燃焼塔本体９内に流入され、本体９
内で燃焼される。その後、排ガスは冷却ダクト６
より流出されガスクーラー３に案内され、さらに
案内ダクト７等を通じて集塵装置４に供給され
る。一方、冷却装置１０の作動により、冷却水供
給手段１１の各ノズル部１６から本体９外表面に
冷却水が噴出され、本体９が冷却される。そして
冷却水の一部は蒸発して排水フード２１により回
収され、排出される。残部の冷却水は下方に流下
し、各受樋部１２で回収され、循環手段１３によ
り再度、冷却水供給手段１１に供給される。尚、
冷却水の蒸発した量は適宜補給すればよい。 The embodiment of the present invention is constructed as described above, and the high temperature exhaust gas generated in the electric furnace 1 flows into the combustion tower main body 9 through the guide duct 5.
burned inside. After that, the exhaust gas is transferred to the cooling duct 6
It flows out, is guided to the gas cooler 3, and is further supplied to the dust collector 4 through the guide duct 7 and the like. On the other hand, by the operation of the cooling device 10, cooling water is jetted onto the outer surface of the main body 9 from each nozzle portion 16 of the cooling water supply means 11, and the main body 9 is cooled. A portion of the cooling water is then evaporated, collected by the drain hood 21, and discharged. The remaining cooling water flows downward, is collected by each receiving gutter section 12, and is again supplied to the cooling water supply means 11 by the circulation means 13. still,
The amount of evaporated cooling water may be replenished as appropriate.
上記実施例において、本体９の外表面に冷却水
を噴出させる方式を示しているが、本体９の外表
面に冷却水を滴下して冷却する方式としてもよ
い。 In the above embodiment, a method is shown in which the cooling water is jetted onto the outer surface of the main body 9, but a method in which the cooling water is dripped onto the outer surface of the main body 9 for cooling may also be used.
（考案の効果）
本考案によれば、中空状の燃焼塔本体の上端部
に製鋼炉内で発生するガスが流入される流入路が
設けられ、下端部に燃焼塔本体内のガスを流出さ
せ集塵装置に案内する流出路が設けられ、燃焼塔
本体を冷却する冷却装置が備えられてなるものに
おいて、前記燃焼塔本体が一重の鉄板構造体より
なり、前記冷却装置は燃焼塔本体の外表面に冷却
水を供給する冷却水供給手段と、流下した冷却水
を回収すべく燃焼塔本体の下端に設けられた受樋
部と、受樋部で回収された冷却水を再度冷却水供
給手段に供給する循環手段とを備え、燃焼塔本体
の上方に水蒸気排出用の排出フードが設けられて
なるものであり、燃焼塔本体の製作に際し、従来
如く複雑な構造が不要となり、一重の鉄板構造体
よりなる簡単な構造とでき、トラブルが発生し難
く、また製作コスト低減が図れる。また本体の外
表面に外部より冷却水を直接供給する方式である
ため、水洩れ対策が不要となり、さらに冷却水供
給手段も外部に配置されているめた、保守点検等
のメインテナンスが外部より容易迅速に行なえ、
安全である。またトラブルが発生し難く、メイン
テナンス性に優れることから製鋼炉の稼働率の低
下も防止できる。(Effects of the invention) According to the invention, an inlet passage is provided at the upper end of the hollow combustion tower body through which gas generated in the steelmaking furnace flows in, and an inflow passage is provided at the lower end to allow the gas inside the combustion tower body to flow out. A combustion tower is provided with an outflow passage leading to a dust collector, and is equipped with a cooling device for cooling the combustion tower main body, wherein the combustion tower main body is made of a single steel plate structure, and the cooling device is connected to the outside of the combustion tower main body. A cooling water supply means for supplying cooling water to the surface, a receiving gutter section provided at the lower end of the combustion tower main body to collect cooling water that has flowed down, and a cooling water supply means for re-supplying the cooling water collected in the receiving gutter section. The combustion tower is equipped with a circulation means for supplying steam, and an exhaust hood for discharging water vapor is provided above the combustion tower main body.When manufacturing the combustion tower main body, the conventional complicated structure is no longer required, and a single steel plate structure is used. It has a simple structure consisting of a body, is less likely to cause trouble, and can reduce manufacturing costs. In addition, since cooling water is directly supplied from the outside to the outer surface of the main body, there is no need to take measures against water leaks, and since the cooling water supply means is also located outside, maintenance such as maintenance and inspection is easier than from outside. Do it quickly,
It's safe. In addition, since troubles are less likely to occur and maintainability is excellent, it is possible to prevent a decrease in the operating rate of the steelmaking furnace.
第１図は本考案の実施例を示す説明図、第２図
は設備全体を示す説明図、第３図は従来例を示す
説明図である。
１……電気炉、２……燃焼塔、４……集塵装
置、５……案内ダクト、６……冷却ダクト、９…
…燃焼塔本体、１０……冷却装置、１１……冷却
水供給手段、１２……受樋部、１３……循環手
段。
FIG. 1 is an explanatory diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the entire equipment, and FIG. 3 is an explanatory diagram showing a conventional example. 1... Electric furnace, 2... Combustion tower, 4... Dust collector, 5... Guide duct, 6... Cooling duct, 9...
... Combustion tower main body, 10 ... Cooling device, 11 ... Cooling water supply means, 12 ... Receiving gutter section, 13 ... Circulation means.
Claims (1)
で発生するガスが流入される流入路５が設けら
れ、下端部に燃焼塔本体９内のガスを流出させ集
塵装置４に案内する流出路６が設けられ、燃焼塔
本体９を冷却する冷却装置１０が備えられてなる
ものにおいて、前記燃焼塔本体９が一重の鉄板構
造体よりなり、前記冷却装置１０は燃焼塔本体９
の外表面に冷却水を供給する冷却水供給手段１１
と、流下した冷却水を回収すべく燃焼塔本体９の
下端に設けられた受樋部１２と、受樋部１２で回
収された冷却水を再度冷却水供給手段１１に供給
する循環手段１３とを備え、燃焼塔本体９の上方
に水蒸気排出用の排出フード２１が設けられてな
ることを特徴とする製鋼炉用排ガス燃焼塔装置。 An inlet passage 5 is provided at the upper end of the hollow combustion tower main body 9 through which gas generated in the steelmaking furnace 11 flows in, and at a lower end, the gas inside the combustion tower main body 9 flows out and is guided to the dust collector 4. The combustion tower main body 9 is made of a single steel plate structure, and the cooling device 10 is provided with an outlet passage 6 and a cooling device 10 for cooling the combustion tower main body 9.
Cooling water supply means 11 for supplying cooling water to the outer surface of
, a receiving gutter 12 provided at the lower end of the combustion tower main body 9 to collect the cooling water that has flown down, and a circulation means 13 for supplying the cooling water collected in the receiving gutter 12 to the cooling water supply means 11 again. An exhaust gas combustion tower device for a steelmaking furnace, characterized in that an exhaust hood 21 for discharging water vapor is provided above the combustion tower main body 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9776788U JPH053864Y2 (en) | 1988-07-22 | 1988-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9776788U JPH053864Y2 (en) | 1988-07-22 | 1988-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0221434U JPH0221434U (en) | 1990-02-13 |
| JPH053864Y2 true JPH053864Y2 (en) | 1993-01-29 |
Family
ID=31323458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9776788U Expired - Lifetime JPH053864Y2 (en) | 1988-07-22 | 1988-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH053864Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5234578B2 (en) * | 2007-10-02 | 2013-07-10 | 日本スピンドル製造株式会社 | Water cooling duct |
-
1988
- 1988-07-22 JP JP9776788U patent/JPH053864Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0221434U (en) | 1990-02-13 |
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