JPH0133643Y2 - - Google Patents
Info
- Publication number
- JPH0133643Y2 JPH0133643Y2 JP14853484U JP14853484U JPH0133643Y2 JP H0133643 Y2 JPH0133643 Y2 JP H0133643Y2 JP 14853484 U JP14853484 U JP 14853484U JP 14853484 U JP14853484 U JP 14853484U JP H0133643 Y2 JPH0133643 Y2 JP H0133643Y2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- furnace
- gas
- cooling zone
- zone
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 34
- 239000007789 gas Substances 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000000112 cooling gas Substances 0.000 claims description 8
- 239000007779 soft material Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 12
- 238000007664 blowing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Tunnel Furnaces (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、台車式熱処理炉の冷却帯において、
冷却用空気の流れを遮へいする遮へいカーテンを
設けた冷却帯構造に関する。[Detailed description of the invention] (Industrial application field) The present invention provides
The present invention relates to a cooling zone structure provided with a shielding curtain that blocks the flow of cooling air.
（従来の技術）
従来、台車式熱処理炉は、特公昭53−7885号公
報を例として、第５図に示すように、台車上に被
処理材を数段積載し、その上からマツフルをかぶ
せたのちマツフル内に雰囲気ガスを導入し、台車
にて１ピツチずつ順次移送しながら、予熱帯、加
熱帯、均熱帯、及び冷却帯を通過させることによ
り、所定の熱処理を行なう。(Prior art) Conventionally, a trolley-type heat treatment furnace, as shown in FIG. Afterwards, an atmospheric gas is introduced into the Matsufuru, and a predetermined heat treatment is carried out by passing through a pre-heating zone, a heating zone, a soaking zone, and a cooling zone while sequentially transferring one pitch at a time using a cart.
冷却帯においては、台車にて移送されるマツフ
ルの両側又はマツフル間の両側の炉壁に、所定の
間隔を置いて、炉長方向に列設される冷却用気体
吹込口を介して、気体をマツフルへ吹付けて、被
処理材を高温から常温まで間接冷却される。 In the cooling zone, gas is injected through cooling gas inlets arranged in the furnace length direction at predetermined intervals on both sides of the Matsufuru transported by a trolley or on both sides of the furnace walls between the Matsufuru. The material to be treated is indirectly cooled from high temperature to room temperature by spraying it onto Matsufuru.
台車式熱処理炉冷却帯の問題点として、高温域
での材料の過冷による熱変形等の品質の悪化及び
低温域での冷却不足による処理能力の不足があ
る。この原因は、冷却帯炉長方向に列設した冷却
用気体吹込口７から気体を吹付けて、被処理材を
間接冷却する際、冷却帯内で発生する対流現象に
よるものである。第６図は対流現象を図式で示し
たものである。図において、ts1＝被処理材の冷
却帯入口温度、ts2＝被処理材の冷却帯出口温度、
ta＝吹付け空気温度である。 Problems with the trolley-type heat treatment furnace cooling zone include quality deterioration such as thermal deformation due to overcooling of the material in the high temperature range, and insufficient processing capacity due to insufficient cooling in the low temperature range. This is due to the convection phenomenon that occurs within the cooling zone when the material to be treated is indirectly cooled by blowing gas from the cooling gas blowing ports 7 arranged in the length direction of the cooling zone. FIG. 6 diagrammatically shows the convection phenomenon. In the figure, ts 1 = cooling zone inlet temperature of the treated material, ts 2 = cooling zone outlet temperature of the treated material,
ta=Blow air temperature.
第６図において、高温域での被処理材を吹付気
体の温度差を、Δtm1低温域での被処理材と吹付
気体の温度差をΔtm2とすると、高温域ではΔtm1
が大きいため、吹付け気体量は少なくて所定の冷
却が行なわれるが、低温域ではΔtm2が小さいた
め、吹付け気体量が多くしなければ、所定の冷却
は行なわれない。 In Figure 6, if the temperature difference between the treated material and the blown gas in the high temperature range is Δtm 1 , and the temperature difference between the treated material and the blown gas in the low temperature range is Δtm 2 , then in the high temperature range Δtm 1
Since Δtm 2 is large, the amount of blown gas is small to perform the desired cooling, but in the low temperature range, Δtm 2 is small, so the desired cooling cannot be performed unless the amount of blown gas is increased.
従つて高温域では少量の気体、低温域では多量
の気体を吹付けることにより、被処理材の冷却は
行なわれる。しかし冷却帯が１チヤンバーの場
合、低温域で吹付けられた多量の気体は、高温域
に吸収されてしまい、高温域では過冷となり、低
温域では冷却不足が起きてしまう。 Therefore, the material to be treated is cooled by spraying a small amount of gas in a high temperature range and a large amount of gas in a low temperature range. However, when the cooling zone is one chamber, a large amount of gas blown in the low temperature region is absorbed in the high temperature region, resulting in overcooling in the high temperature region and insufficient cooling in the low temperature region.
（考案が解決しようとする問題点）
本考案は低温域から高温域へ気体が流れる対流
現象を防止した台車式熱処理炉の冷却構造を提供
するものである。(Problems to be Solved by the Invention) The present invention provides a cooling structure for a trolley-type heat treatment furnace that prevents the convection phenomenon in which gas flows from a low-temperature region to a high-temperature region.
（問題を解決するための手段）
本考案は、台車式熱処理炉冷却帯に列設した気
体吹込口７の炉長方向列設間に、冷却帯炉壁上部
より吊部材６を架設し、該部材に軟質材で形成し
た遮へいカーテン５を垂設して、高温域と低温域
の仕切りを行なうことにより、前記問題点を解消
する。即ち第１図、第２図に示すように、気体吹
込口７の列設間の炉壁上部に、型鋼又はパイプ等
で形成した吊部材６架設し、該部材に炉幅と同等
な幅の遮へいカーテン５をボルト又はピン等にて
固定し、垂設する。(Means for solving the problem) In the present invention, a hanging member 6 is installed from the upper part of the cooling zone furnace wall between the gas inlet ports 7 arranged in a row in the cooling zone of a trolley-type heat treatment furnace in the furnace length direction. The above-mentioned problem can be solved by vertically disposing a shielding curtain 5 made of a soft material on the member to partition the high temperature region and the low temperature region. That is, as shown in FIGS. 1 and 2, a hanging member 6 made of shaped steel or pipe is installed on the upper part of the furnace wall between the rows of gas inlets 7, and a hanging member 6 of a width equivalent to the width of the furnace is installed on this member. The shielding curtain 5 is fixed with bolts, pins, etc. and hung vertically.
（作 用）
台車３にて冷却帯へ搬送されたマツフルへ、炉
長方向に列設した気体吹込口７より冷却気体吹付
けて、マツフル１内の被処理材４は間接冷却され
る。この際、吹付けられた気体は、高温域へ流れ
ようとするが、気体吹込口７の列設間に配設され
た遮へいカーテン５と台車３により仕切られてい
るので、気体の流れは防止できる。(Function) Cooling gas is blown onto the Matsufuru transported to the cooling zone by the trolley 3 from the gas blowing ports 7 arranged in the longitudinal direction of the furnace, so that the material 4 to be treated inside the Matsufuru 1 is indirectly cooled. At this time, the blown gas tries to flow to the high temperature area, but the shielding curtain 5 and the trolley 3 arranged between the rows of gas inlet ports 7 separate the gas from flowing. can.
そして遮へいカーテン５により仕切られた区域
の中で、所定の冷却が終ると、台車が作動し、マ
ツフルは区域へ搬送されるが、この際の遮へいカ
ーテン５の開閉は、マツフルが移動時に遮へいカ
ーテン５を押し上げて、次の区域へ移動し、所定
の位置へマツフルが進むと、遮へいカーテン５は
垂設されているだけであるから、マツフルから離
れて所定の位置に戻る。 When the specified cooling period is completed in the area partitioned by the shielding curtain 5, the trolley is operated and the Matsuful is transported to the area. 5 is pushed up and moved to the next area, and when the matsufuru advances to a predetermined position, since the shielding curtain 5 is only hung vertically, it separates from the matsufuru and returns to the predetermined position.
（実施例）
第１図、第２図は本考案を使用した台車式熱処
理炉冷却帯の１列を示す図で、第１図は台車式熱
処理炉冷却帯平面断面図で、第２図は第１図のＡ
−Ａ断面図である。(Example) Figures 1 and 2 are diagrams showing one row of the cooling zone of a trolley-type heat treatment furnace using the present invention. A in Figure 1
-A sectional view.
第１図は台車停止状態を示し、この状態にて台
車上に積載されたマツフルは冷却が行なわれ、所
定の冷却が終了したら次のチヤンバーへ台車にて
移送される。第１図、第２図において、台車に積
載され冷却帯に搬送されたマツフルは、マツフル
の両側に配設した気体吹込口７により冷却気体を
吹付け、被処理材は間接冷却される。気体吹込口
７の炉長列設間に、炉壁上部より型鋼又はパイプ
（図はパイプと例示する）で形成する吊部材６を
架設し固定する。該部材に遮へいカーテン５をボ
ルト又はピン等にて固定し垂設する。 FIG. 1 shows the cart in a stopped state. In this state, the Matsufuru loaded on the cart is cooled, and when the prescribed cooling is completed, it is transferred to the next chamber by the cart. In FIGS. 1 and 2, the material to be treated is indirectly cooled by blowing cooling gas through the gas blowing ports 7 provided on both sides of the material that has been loaded onto a cart and transported to the cooling zone. A hanging member 6 formed of shaped steel or a pipe (illustrated as a pipe in the figure) is installed and fixed between the furnace length rows of the gas inlet 7 from the upper part of the furnace wall. The shielding curtain 5 is fixed to the member with bolts, pins, etc. and is hung vertically.
第３図、第４図は移動されるマツフル間の両側
に、気体吹込口７を設置した場合の遮へいカーテ
ン５を垂設した冷却帯である。第３図、第４図の
場合、吊部材６はマツフルの上部炉殻に架設し、
該部材に門型に形成した遮へいカーテンを垂設す
る。この場合の気体吹込口間の仕切は、門型の遮
へいカーテンとマツフルとで行なう。 FIGS. 3 and 4 show a cooling zone in which shielding curtains 5 are hung vertically when gas blowing ports 7 are installed on both sides of the space between the moving matsuru. In the case of FIGS. 3 and 4, the hanging member 6 is installed on the upper furnace shell of Matsuful,
A gate-shaped shielding curtain is hung from the member. In this case, the gas inlets are partitioned by gate-shaped shielding curtains and matsufuru.
（考案の効果）
以上のように、気体吹込口間に遮へいカーテン
を配設することにより、低温域から高温域へ気体
が流れる対流現象は防止でき、高温域での被処理
材の過冷による成品の品質悪化、及び低温域での
冷却不足による能力不足は皆無となり、又、各温
度域での気体量の調整が行なえるため、冷却速度
の制御も可能となり、成品の品質向上及び省エネ
効果等実用的効果はきわめて大きい。(Effects of the invention) As described above, by arranging a shielding curtain between the gas inlets, it is possible to prevent the convection phenomenon in which gas flows from a low temperature area to a high temperature area, and it is possible to prevent the phenomenon of convection in which gas flows from a low temperature area to a high temperature area. There is no deterioration in product quality or insufficient capacity due to insufficient cooling in low temperature ranges, and since the amount of gas can be adjusted in each temperature range, it is also possible to control the cooling rate, improving product quality and saving energy. The practical effects are extremely large.
第１図は気体吹込口とマツフルが同間隔に配列
されている冷却帯において、遮へいカーテンを配
置した平面断面図、第２図は第１図のＡ−Ａ断面
図、第３図は気体吹込口とマツフルが半ピツチず
れて配列された冷却帯に、遮へいカーテンを配置
した平面断面図、第４図は第３図のＢ−Ｂ断面
図、第５図は従来の台車式熱処理炉の概略説明
図、第６図は冷却帯における冷却計算の図式であ
る。
１……マツフル、２……冷却帯炉壁、３……台
車、４……被処理材、５……遮へいカーテン、６
……吊部材、７……気体吹込口、８……排気口、
１０……冷却帯、１１……加熱帯、１２，１３…
…扉。
Figure 1 is a plan sectional view of a cooling zone where gas inlets and matsfuls are arranged at equal intervals, with a shielding curtain arranged, Figure 2 is a sectional view taken along line A-A in Figure 1, and Figure 3 is a cross-sectional view of the gas inlet. A cross-sectional plan view showing a shielding curtain placed in a cooling zone where the mouths and matsuru are arranged half a pitch apart, Figure 4 is a cross-sectional view taken along line B-B in Figure 3, and Figure 5 is a schematic diagram of a conventional trolley-type heat treatment furnace. The explanatory diagram, FIG. 6, is a diagram of cooling calculation in the cooling zone. 1... Matsufuru, 2... Cooling zone furnace wall, 3... Cart, 4... Material to be treated, 5... Shielding curtain, 6
...Hanging member, 7... Gas inlet, 8... Exhaust port,
10... Cooling zone, 11... Heating zone, 12, 13...
…door.
Claims (1)
所定の間隔を置いて、炉壁に複数列設した台車式
熱処理炉の冷却帯において、前記冷却用気体吹込
口７列設間の炉壁上部に、吊り部材６を架設し、
該部材に軟質材で形成した気体遮へいカーテン５
を垂設し、冷却帯域を複数に仕切り、各域間にお
ける冷却用気体の流れを遮へいすることを特徴と
する台車式熱処理炉の冷却帯構造。 In the cooling zone of a trolley-type heat treatment furnace, in which a plurality of rows of cooling gas inlets are installed on the furnace wall with cooling gas inlets directed into the furnace and at predetermined intervals in the furnace length direction, the furnace has seven rows of cooling gas inlets. A hanging member 6 is installed on the upper part of the wall,
A gas shielding curtain 5 formed of a soft material on the member
A cooling zone structure for a trolley-type heat treatment furnace characterized by installing vertically, dividing the cooling zone into a plurality of zones, and blocking the flow of cooling gas between each zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14853484U JPH0133643Y2 (en) | 1984-10-02 | 1984-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14853484U JPH0133643Y2 (en) | 1984-10-02 | 1984-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6164152U JPS6164152U (en) | 1986-05-01 |
| JPH0133643Y2 true JPH0133643Y2 (en) | 1989-10-12 |
Family
ID=30706740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14853484U Expired JPH0133643Y2 (en) | 1984-10-02 | 1984-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0133643Y2 (en) |
-
1984
- 1984-10-02 JP JP14853484U patent/JPH0133643Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6164152U (en) | 1986-05-01 |
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