JPS6138905Y2 - - Google Patents
Info
- Publication number
- JPS6138905Y2 JPS6138905Y2 JP1982059357U JP5935782U JPS6138905Y2 JP S6138905 Y2 JPS6138905 Y2 JP S6138905Y2 JP 1982059357 U JP1982059357 U JP 1982059357U JP 5935782 U JP5935782 U JP 5935782U JP S6138905 Y2 JPS6138905 Y2 JP S6138905Y2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- wall
- flame
- temperature
- heating
- 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
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 5
- 239000011819 refractory material Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 239000000446 fuel Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Heat Treatment Processes (AREA)
- Tunnel Furnaces (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Description
【考案の詳細な説明】
本考案は、鋼片等に対する加熱炉において、特
に炉巾方向について均一加熱を行うようにした加
熱炉の温度調整装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a temperature adjustment device for a heating furnace that uniformly heats steel slabs, etc., particularly in the width direction of the furnace.
鋼片の加熱のためのウオーキングビーム式加熱
炉などにおいて、鋼片を下方から加熱するため
に、下部帯の炉壁にサイドバーナーを設けたもの
が用いられている。この種の加熱炉においては、
スキツドマークの発生が燃料原単位を低下させる
ことが知られており、その改善のために種々の工
夫が試みられている。スキツドマークはスキツド
に当る位置が他の部位より加熱され難いことによ
つて生じるものであるが、サイドバーナー方式の
加熱炉においては、火炎が炉巾方向の中心に集り
易く、それに対して炉壁に近い個所では加熱され
難く、その結果特に炉壁に近い個所のスキツド相
当部位は中央部より一層温度が低い。このよう
に、炉巾方向について偏加熱が生じると、加熱炉
内においては鋼片を横送りするものであるため、
抽出時において鋼片の長手方向の温度不均一とな
り、圧延の際に支障となる。したがつて、正常な
圧延を行うためには、炉壁に近いスキツドマーク
部分も所定の抽出温度をなるよう必要以上の燃料
を使用することを余儀なくされている。 BACKGROUND ART In a walking beam heating furnace for heating steel slabs, a side burner is used on the furnace wall in the lower zone in order to heat the steel slabs from below. In this type of heating furnace,
It is known that the occurrence of skid marks reduces fuel consumption, and various efforts have been made to improve this. Sketch marks are caused by the position that hits the skid being less heated than other parts, but in a side-burner heating furnace, the flame tends to gather at the center of the furnace width, whereas the flames tend to gather at the center of the furnace wall. It is difficult to heat the parts close to the furnace wall, and as a result, the temperature of the parts corresponding to skids, especially those near the furnace wall, is lower than that of the central part. In this way, when uneven heating occurs in the width direction of the furnace, since the billet is fed horizontally in the heating furnace,
During extraction, the temperature becomes non-uniform in the longitudinal direction of the steel billet, which causes problems during rolling. Therefore, in order to perform normal rolling, it is necessary to use more fuel than necessary so that the skid mark portion near the furnace wall also reaches a predetermined extraction temperature.
これに対して、炉巾方向の温度解消方法とし
て、バーナフレーム長さを調節する方法がある。
具体的には、燃焼用空気の流量を調節することに
よつて、フレーム長さを調整しようとするもので
あるが、燃料に対する空気量を変更するため、空
燃比が適正でなくなり、燃焼効率が悪いという難
点がある。 On the other hand, as a method for reducing the temperature in the width direction of the furnace, there is a method of adjusting the length of the burner frame.
Specifically, the flame length is attempted to be adjusted by adjusting the flow rate of combustion air, but since the amount of air relative to the fuel is changed, the air-fuel ratio becomes inappropriate and the combustion efficiency decreases. There is a drawback that it is bad.
本考案は、前記問題点に対処するために提案さ
れたもので、その目的は炉巾方向についての温度
差を確実にかつ簡易に解消できる加熱炉の温度調
整装置を提供することにある。 The present invention has been proposed to address the above-mentioned problems, and its purpose is to provide a temperature adjustment device for a heating furnace that can reliably and easily eliminate temperature differences in the width direction of the furnace.
以下本考案を図面に示す具体例によつて説明す
ると、図示の例はウオーキングビーム炉Ａの例
で、スラブ等の鋼片１は固定スキツド２と移動ス
キツド３とに所定の移動サイクルに則つて乗りな
がら、炉Ａの一端の装入位置から、順次予熱帯
Z1、第１加熱帯Z2、第２加熱帯Z3および均熱帯Z4
を通つて、所定の温度まで加熱された後、抽出さ
れるものである。 The present invention will be explained below with reference to a specific example shown in the drawings.The illustrated example is a walking beam furnace A, in which a steel piece 1 such as a slab is moved between a fixed skid 2 and a movable skid 3 according to a predetermined movement cycle. While riding, move from the charging position at one end of furnace A to the preheating zone.
Z 1 , first heating zone Z 2 , second heating zone Z 3 and soaking zone Z 4
It is extracted after being heated to a predetermined temperature.
加熱に際しては、鋼片１の移動路より上方の上
部帯に設けたバーナー４，４……によるほか、下
方の下部帯の炉側壁に設けたサイドバーナー６，
６……群によつて加熱がなされる。 For heating, in addition to the burners 4, 4... installed on the upper zone above the movement path of the steel billet 1, side burners 6, 4, etc. installed on the furnace side wall of the lower zone below are used.
6... Heating is performed by group.
本考案においては、下部帯内に側壁５より内側
位置に寄つた個所に、耐火レンガ等の耐火材料か
らなる温度調整壁７が立設される。この温度調整
壁７位置は、炉巾方向のスキツド位置、バーナー
６からの火炎長、あるいは炉巾等にもよるが、た
とえば炉巾が10mの場合、側壁５，５からそれぞ
れ2m程度炉巾中央側に寄つた位置とするのが好
適であり、またスキツドマークの発生に影響の大
きい、第２加熱帯Z3および均熱帯Z4に少くとも設
けるのが望ましい。さらに温度調整壁７の上端
は、バーナー６のほぼ中心位置とするのが望まし
く、これによつて第２図のように火炎Ｆの上半分
F1をそのまま壁７を越して炉Ａの中央部へ、下
半分F2を壁７に当て向きを変えさせながら上方
へ誘導できる。他方、本考案においては、温度調
整壁７には火炎の流れ調整のほか、壁７を加熱し
てそこからの輻射熱によつて鋼片１を加熱させる
機能をもたせようとしている。したがつて、この
観点から温度調整壁７の材質および厚み等が選択
される。材質的には、耐火レンガが好適であり、
厚みは15〜100cmが望ましい。 In the present invention, a temperature control wall 7 made of a refractory material such as firebricks is erected in the lower zone at a position closer to the inside than the side wall 5. The position of this temperature control wall 7 depends on the skid position in the furnace width direction, the flame length from the burner 6, or the furnace width, but for example, if the furnace width is 10 m, it is preferable to place it about 2 m from each of the side walls 5, 5 toward the center of the furnace width, and it is also preferable to install it at least in the second heating zone Z3 and the soaking zone Z4 , which have a large influence on the occurrence of skid marks. Furthermore, it is preferable that the upper end of the temperature control wall 7 is located approximately at the center of the burner 6, so that the upper half of the flame F is not exposed to the heat of the burner 6 as shown in Fig. 2.
F1 can be guided directly through the wall 7 to the center of the furnace A, while the lower half F2 can be guided upwards by hitting the wall 7 and changing its direction. On the other hand, in this invention, the temperature control wall 7 is intended to have the function of heating the wall 7 and heating the steel slab 1 by the radiant heat from there, in addition to regulating the flow of the flame. Therefore, the material and thickness of the temperature control wall 7 are selected from this viewpoint. In terms of material, firebrick is preferable,
A thickness of 15 to 100 cm is desirable.
また、温度調整壁７の形状は、図示の２段形状
のほか、側面がフラツトであつても一部の火炎を
吹き上げることができるが、第３図のように火炎
吹き上げのために吹上げ案内面３′ａを有する壁
３′としてもよいし、第４図のように３段形状の
壁３″としてもよい。 In addition to the two-tiered shape shown in the figure, the shape of the temperature control wall 7 can blow up some of the flame even if the sides are flat. The wall 3' may have a surface 3'a, or the wall 3'' may have a three-stage shape as shown in FIG.
一方、温度調整壁７は炉長方向に連続していて
も、あるいはバーナー６相当位置間において不連
続となつていてもよい。 On the other hand, the temperature adjustment wall 7 may be continuous in the furnace length direction, or may be discontinuous between positions corresponding to the burner 6.
上記のように、温度調整壁７を設けると、バー
ナー６から吹出された火炎Ｆは、一部F1が壁７
の上方を越えての炉の中心に向い、壁７より中心
側を加熱し、他の部分F2が壁７の側面に当りそ
こで上昇流となつて壁７より側壁５側を加熱す
る。したがつて、従来のように温度調整壁を設け
ない場合にみられる炉巾の中央部分のみが強く加
熱され、側壁５に近い部分が低温となりがちであ
つたのに対して、本考案例によれば側壁５に近い
部分にも火炎がまわるので、鋼片の炉巾方向の温
度分布を均一にすることができる。 As mentioned above, when the temperature adjustment wall 7 is provided, a part of the flame F blown out from the burner 6 is transferred to the wall 7.
The other part F 2 hits the side of the wall 7 and becomes an upward flow, heating the side of the side wall 5 from the wall 7. Therefore, unlike the conventional case where a temperature control wall was not provided, only the central part of the furnace width was strongly heated and the part near the side wall 5 tended to be low temperature, in the present example. Accordingly, since the flame also spreads to the part near the side wall 5, the temperature distribution of the steel slab in the width direction of the furnace can be made uniform.
また、温度調整壁７は火炎の流れ制御ととも
に、火炎あるいは雰囲気温度によつて加熱され、
そこから輻射熱を発するもので、これによつても
鋼片が加熱され、温度の均一化に寄与するところ
が大である。 In addition, the temperature adjustment wall 7 is heated by the flame or the ambient temperature while controlling the flame flow.
It emits radiant heat, which also heats the steel pieces and greatly contributes to temperature uniformity.
以上の通り、本考案によれば、鋼片等の被加熱
材の温度分布がほぼ均一となり、もつて燃料原単
位の向上を確実に達成できる。ちなみに、従来例
と本考案例とを比較したところ、鋼片全体の平均
抽出温度を約５〜10℃低下させることができた。 As described above, according to the present invention, the temperature distribution of the material to be heated, such as a steel billet, becomes substantially uniform, thereby reliably achieving an improvement in the fuel consumption rate. By the way, when comparing the conventional example and the example of the present invention, it was possible to lower the average extraction temperature of the entire steel slab by about 5 to 10°C.
第１図は加熱炉の概要を示す正面図、第２図は
本考案に係る温度調整装置の配設状態概要横断面
図、第３図および第４図は態様を異にする温度調
整壁の断面図である。
１……鋼片、２……固定スキツド、３……移動
スキツド、５……側壁、６……サイドバーナー、
７……温度調整壁。
Fig. 1 is a front view showing an outline of a heating furnace, Fig. 2 is a cross-sectional view of the arrangement of a temperature regulating device according to the present invention, and Figs. 3 and 4 are diagrams showing different types of temperature regulating walls. FIG. 1...Steel piece, 2...Fixed skid, 3...Moveable skid, 5...Side wall, 6...Side burner,
7...Temperature control wall.
Claims (1)
設けたバーナーからの火炎を炉の中心に向かつて
吹き込む加熱炉において、被加熱材の下方で、炉
両側壁より所定距離内側によつた２つの位置に耐
火性材料からなり炉長方向に延びる温度調整壁を
それぞれ設け、かつその温度調整壁の上端を火炎
のほぼ中央位置としたことを特徴とする加熱炉の
温度調整装置。 In a heating furnace in which the flame from a burner installed on the side wall of the furnace in the lower zone below the moving path of the material to be heated is blown toward the center of the furnace, the flame is blown inward from the side wall of the furnace at a predetermined distance below the material to be heated. A temperature adjustment device for a heating furnace, characterized in that temperature adjustment walls made of a refractory material and extending in the furnace length direction are provided at two positions, respectively, and the upper end of the temperature adjustment wall is positioned approximately at the center of the flame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5935782U JPS58163552U (en) | 1982-04-23 | 1982-04-23 | Heating furnace temperature adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5935782U JPS58163552U (en) | 1982-04-23 | 1982-04-23 | Heating furnace temperature adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58163552U JPS58163552U (en) | 1983-10-31 |
| JPS6138905Y2 true JPS6138905Y2 (en) | 1986-11-08 |
Family
ID=30069666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5935782U Granted JPS58163552U (en) | 1982-04-23 | 1982-04-23 | Heating furnace temperature adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58163552U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010265529A (en) * | 2009-05-18 | 2010-11-25 | Sanken Sangyo Co Ltd | Walking-beam-type heat treatment furnace |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49117310A (en) * | 1973-03-14 | 1974-11-09 |
-
1982
- 1982-04-23 JP JP5935782U patent/JPS58163552U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49117310A (en) * | 1973-03-14 | 1974-11-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58163552U (en) | 1983-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4604123A (en) | Process and installation for heating a channel containing glass by means of oxyfuel flames | |
| US2298149A (en) | Continuous heating furnace | |
| JPS6138905Y2 (en) | ||
| JP2005528531A (en) | Method for reducing temperature deviation on heated material, skid member, and skid device using the same | |
| NL8402808A (en) | PRE-FIRE FOR MELTED GLASS. | |
| JP3937729B2 (en) | Heating furnace atmosphere control method and heating furnace | |
| US7540992B2 (en) | Method for controlling the homogeneity of the temperature of products in a metallurgical reheating furnace, and reheating furnace | |
| US2133673A (en) | Continuous heating furnace | |
| US5007824A (en) | Skid mark erasure system | |
| US2157221A (en) | Continuous heating furnace | |
| US2890547A (en) | Apparatus for and method of making glass | |
| US2388762A (en) | Plate burner | |
| JP3396922B2 (en) | Continuous heating furnace and combustion method thereof | |
| JP3845143B2 (en) | Continuous heating method and apparatus | |
| JP3875927B2 (en) | Slab heating method and heating furnace | |
| JP2000212645A (en) | Continuous heating of steel material | |
| JPS5829168Y2 (en) | Walking beam multi-zone heating furnace | |
| JP3364091B2 (en) | Temperature control method for continuous annealing furnace | |
| JPH08291327A (en) | Continuous heating apparatus | |
| JPS6113548Y2 (en) | ||
| JPS5916615A (en) | Rolling method of thick plate | |
| JPS6324157Y2 (en) | ||
| JPS5914717Y2 (en) | Surface ignition device for sintered raw material layer | |
| JPS6038151Y2 (en) | heating furnace | |
| JPH086031Y2 (en) | Continuous heating furnace |