JPS6252008B2 - - Google Patents
Info
- Publication number
- JPS6252008B2 JPS6252008B2 JP10218182A JP10218182A JPS6252008B2 JP S6252008 B2 JPS6252008 B2 JP S6252008B2 JP 10218182 A JP10218182 A JP 10218182A JP 10218182 A JP10218182 A JP 10218182A JP S6252008 B2 JPS6252008 B2 JP S6252008B2
- Authority
- JP
- Japan
- Prior art keywords
- walking beam
- heated
- furnace
- finger
- walking
- 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 16
- 239000000463 material Substances 0.000 description 23
- 238000000605 extraction Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/201—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace walking beam furnace
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Description
【発明の詳細な説明】
本発明は、スラブ、ブルーム、その他の鋼材な
どを加熱する加熱炉に関するもので、とくに、ウ
オーキングビームと、被加熱材の抽出機のフイン
ガとの関係を改良したものである。[Detailed Description of the Invention] The present invention relates to a heating furnace for heating slabs, blooms, other steel materials, etc., and in particular improves the relationship between the walking beam and the finger of the extraction machine for the material to be heated. be.
従来のこの種の加熱炉は、たとえば、第１図お
よび第２図に示すような構造からなつている。す
なわち、従来の加熱炉ａにおいて、バーナｃで所
定の温度まで加熱された被加熱材ｂは、炉内の固
定ビームｊに乗つた状態から炉の抽出ドアｋをあ
けたのち、抽出機フインガｄが炉内に入り、被加
熱材ｂである鋼片を１個すくい取り、フインガｄ
が被加熱材ｂを乗せたまま炉内から出ることで抽
出していた。この場合、第２図にみられるよう
に、抽出機フインガｄは、固定ビームｊとウオー
キングビームｆとの間に入る必要があつた。また
炉内の被加熱材ｂは、固定ビームｊ上からウオー
キングビームｆが三角台ｈ上のローラg′の移動に
伴ない、ウオーキングビーム台車ｅが上昇するこ
とにより、約100ミリメート程度上昇し、被加熱
材ｂはウオーキングビームｆ上に乗る。つぎに、
シリンダｉで台車ｅを引くことにより、ローラｇ
が回転してウオーキングビームｆと被加熱材ｂは
前進する。そして前進終了後、ウオーキングビー
ムｆは下降し、被加熱材ｂを固定ビームｊ上に受
け渡したのち、さらに約100ミリメートル程度下
降し、シリンダｉで押され、もとの位置に戻るよ
うになつていた。したがつて、ウオーキングビー
ムｆの上昇および下降の高さは、約100ミリメー
トル程度ずつ必要とした。さらに、前記の１サイ
クルの動作を短時間で行なうためには、上昇量お
よび下降量を小さくしていた。 A conventional heating furnace of this type has a structure as shown in FIGS. 1 and 2, for example. That is, in the conventional heating furnace a, the material to be heated b heated to a predetermined temperature by the burner c is placed on the fixed beam j in the furnace, and after opening the extraction door k of the furnace, the material b is heated to a predetermined temperature by the burner c. enters the furnace, scoops up one piece of steel, which is material to be heated b, and transfers it to finger d.
was extracted by leaving the furnace with the heated material b still on it. In this case, as seen in FIG. 2, the extractor finger d had to be placed between the fixed beam j and the walking beam f. Further, the heated material b in the furnace is raised by about 100 millimeters as the walking beam f moves from above the fixed beam j and the walking beam cart e rises as the roller g' on the triangular stand h moves. The heated material b rides on the walking beam f. next,
By pulling cart e with cylinder i, roller g
rotates, and the walking beam f and the heated material b move forward. After the forward movement is completed, the walking beam f descends, transfers the material to be heated onto the fixed beam j, then descends further by approximately 100 mm, and is pushed by the cylinder i to return to its original position. Ta. Therefore, the height of the rising and falling of the walking beam f was required to be approximately 100 mm each. Furthermore, in order to perform the above-described one-cycle operation in a short time, the amount of rise and the amount of fall are made small.
このため、従来の加熱炉ａでは、次のような欠
点があつた。すなわち、被加熱材ｂの寸法変化な
どに対応して、さらにフインガｄをその間に入れ
るため、固定ビームｊとウオーキングビームｆの
位置ならびに寸法が自由にとれなかつた。このた
め、固定ビームｊおよびウオーキングビームｆは
相互に干渉し、とくに両ビーム間は、下面の加熱
に対する影となり、温度が低く、被加熱材ｂの温
度分布を悪化させていた。したがつて、被加熱材
ｂの温度が低下する分だけそれを加熱するための
時間が長くなり、生産性が低下した。また、この
温度低下を補うための加熱装置を設けようとして
も、スペース的な制約から、それができなかつ
た。 For this reason, the conventional heating furnace a had the following drawbacks. That is, in response to changes in the dimensions of the material to be heated b, the fingers d are further inserted between them, so the positions and dimensions of the fixed beam j and the walking beam f cannot be determined freely. For this reason, the fixed beam j and the walking beam f interfere with each other, and the area between the two beams in particular becomes a shadow for heating the lower surface, resulting in a low temperature and deteriorating the temperature distribution of the heated material b. Therefore, as the temperature of the heated material b decreases, the time required to heat it becomes longer, resulting in a decrease in productivity. Furthermore, even if an attempt was made to provide a heating device to compensate for this temperature drop, it was not possible due to space constraints.
本発明は、ウオーキングビームと抽出機のフイ
ンガとの関係を改良することにより、固定ビーム
とウオーキングビームの最適な配置をとることが
でき、かつ、シヤドウ効果を小さくすることがで
きて、平均加熱効率の向上が可能となり、しか
も、必要に応じて固定ビームとウオーキングビー
ムの間にシヤドウマーク低減用のふく射管とバー
ナを配置することができる加熱炉を提供すること
を目的とするものである。 The present invention improves the relationship between the walking beam and the fingers of the extractor, thereby making it possible to optimally arrange the fixed beam and the walking beam, reduce the shadow effect, and improve the average heating efficiency. It is an object of the present invention to provide a heating furnace in which an irradiation tube and a burner for reducing shadow marks can be arranged between a fixed beam and a walking beam as necessary.
このため、本発明の構成は、抽出機のフインガ
の装入位置がウオーキングビームの炉幅方向の位
置と一致しており、かつ、該ウオーキングビーム
の下降位置が前記フインガより下位になるように
該ウオーキングビームの下降量が定められている
ことを特徴としている。 For this reason, the configuration of the present invention is such that the loading position of the finger of the extractor matches the position of the walking beam in the oven width direction, and the position of the lowering position of the walking beam is lower than the finger. A feature is that the amount of descent of the walking beam is determined.
以下、本発明の実施態様について、第３図ない
し第６図を参照しながら説明する。 Embodiments of the present invention will be described below with reference to FIGS. 3 to 6.
第３図と第４図は本発明の第１実施例を示し、
第５図と第６図は同じく第２実施例を示したもの
である。 3 and 4 show a first embodiment of the present invention,
5 and 6 similarly show the second embodiment.
第３図および第４図において、１は加熱炉、２
は鋼材などの被加熱材、３はバーナ、４はウオー
キングビーム、５は固定ビーム、６は抽出機のフ
インガ、７はウオーキングビーム台車、８はロー
ラ、９は前記台車７を前後進させるシリンダ、１
０は前記ローラ８を上下動させるボールねじジヤ
ツキ、１１は該ジヤツキ１０を駆動する電動機、
１２は抽出ドアである。すなわち、第４図にみら
れるように、ウオーキングビーム４とフインガ６
は炉幅方向に同一場所となつており、被加熱材２
を炉内で通常送る場合はウオーキングビーム４の
下降量L1（約100ミリメートル）は比較的小さく
し、サイクルタイムを短かくし、生産性を低下さ
せないようにしてある。そして加熱炉１の抽出ド
ア１２端の被加熱材２を抽出する時は、抽出前に
ウオーキングビーム４の下降量L2（300〜1000ミ
リメートル）をフインガ６が炉内に入る深さ以下
まで大きくし、被加熱材２を抽出する。つまり、
第４図の左のＤは抽出時のウオーキングビーム４
の下降した状態を示し、右のＥは常用時のウオー
キングビーム４の下降した状態を示している。こ
のように、この第１実施例では、ウオーキングビ
ーム４のストロークは、小さなL1と大きなL2の
少なくとも２つになつている。このストロークの
大きさの制御は電動機１１によつて駆動されるボ
ールねじジヤツキ１０によるローラ８の昇降量を
制御することによつて行なわれる。つまり、前記
電動機１１を制御することによつて行なわれる。
なおウオーキングビーム４の下降量大L2は、炉
内でウオーキングビーム４を高速移送させない場
合（足ぶみ、低速移動時）には、当然使用され
る。 In FIGS. 3 and 4, 1 is a heating furnace, 2
3 is a heated material such as steel, 3 is a burner, 4 is a walking beam, 5 is a fixed beam, 6 is a finger of an extractor, 7 is a walking beam truck, 8 is a roller, 9 is a cylinder that moves the truck 7 back and forth, 1
0 is a ball screw jack that moves the roller 8 up and down; 11 is an electric motor that drives the jack 10;
12 is an extraction door. That is, as shown in FIG. 4, the walking beam 4 and the finger 6
are located at the same location in the width direction of the furnace, and the material to be heated 2
In the case of normal feeding in a furnace, the amount of descent L 1 (approximately 100 mm) of the walking beam 4 is set to be relatively small to shorten the cycle time and to avoid reducing productivity. When extracting the heated material 2 at the end of the extraction door 12 of the heating furnace 1, the descending amount L 2 (300 to 1000 mm) of the walking beam 4 is increased to below the depth at which the finger 6 enters the furnace before extraction. Then, the material to be heated 2 is extracted. In other words,
D on the left in Figure 4 is walking beam 4 during extraction.
E shows the lowered state of the walking beam 4 during normal use. In this way, in this first embodiment, the walking beam 4 has at least two strokes: a small stroke L1 and a large stroke L2 . The magnitude of this stroke is controlled by controlling the amount of elevation of the roller 8 by a ball screw jack 10 driven by an electric motor 11. That is, this is performed by controlling the electric motor 11.
Note that the large descending amount L2 of the walking beam 4 is naturally used when the walking beam 4 is not moved at high speed in the furnace (during slow movement).
第５図および第６図に示す第２実施例は、前記
第３図および第４図に示した第１実施例と同一構
成のほかに、ふく射管１３とバーナ１４を付加し
たもので、前述のシリンダ９、ボールねじジヤツ
キ１０、電動機１１などは、図示を省略してい
る。すなわち、ウオーキングビーム４と固定ビー
ム５の間にフインガ６が来ないため、このスペー
スを利用して、ふく射管１３とバーナ１４を設
け、両ビーム４と５の間のシヤドウ部を加熱し、
被加熱材２に発生するシヤドウマークを防止また
は低減するようにしている。 The second embodiment shown in FIGS. 5 and 6 has the same structure as the first embodiment shown in FIGS. The cylinder 9, ball screw jack 10, electric motor 11, etc. are omitted from illustration. That is, since the finger 6 does not come between the walking beam 4 and the fixed beam 5, this space is used to provide an radiation tube 13 and a burner 14 to heat the shadow part between both beams 4 and 5.
Shadow marks occurring on the heated material 2 are prevented or reduced.
上述のように、本発明は、固定ビームとウオー
キングビームの間に抽出機のフインガを装入する
のではなく、炉幅方向において該フインガの装入
位置をウオーキングビーム位置と一致させるの
で、被加熱材の寸法に応じて固定ビームとウオー
キングビームを最適な配置および最適な寸法にす
ることが可能となり、被加熱材の平均加熱率が向
上するとともに、被加熱材に発生するシヤドウマ
ークの低減を図ることができ、また必要に応じ
て、ジヤドウマーク低減用バーナを配置すること
もできる。しかも、抽出機には少なくとも２本の
フインガを有し、該フインガの装入時にウオーキ
ングビームが干渉しないように、ウオーキングビ
ームの下降を大きくしたので、被加熱材の抽出が
円滑に行なわれ、またウオーキングビームの下降
量を抽出時に大きくして常用時に小さくすれば、
生産性の低下を避けることが可能となる。 As described above, the present invention does not insert the fingers of the extractor between the fixed beam and the walking beam, but aligns the insertion position of the fingers with the walking beam position in the furnace width direction, so that the heated It is possible to optimize the placement and dimensions of fixed beams and walking beams according to the dimensions of the material, improve the average heating rate of the material to be heated, and reduce shadow marks that occur on the material to be heated. It is also possible to install a burner to reduce black marks, if necessary. Moreover, the extraction machine has at least two fingers, and the descending of the walking beam is increased so that the walking beam does not interfere when the fingers are inserted, so that the material to be heated can be extracted smoothly. If the amount of descent of the walking beam is increased during extraction and decreased during regular use,
It becomes possible to avoid a decrease in productivity.
第１図は従来の加熱炉の一例を示した断面側面
図、第２図は第１図の矢視線Ａに沿う断面正面
図、第３図は本発明の第１実施例を示した断面側
面図、第４図は第３図の矢視線Ｂに沿う断面正面
図、第５図は本発明の第２実施例を示した断面側
面図、第６図は第５図の矢視線Ｃに沿う断面正面
図である。
１……加熱炉、２……被加熱材、３……バー
ナ、４……ウオーキングビーム、５……固定ビー
ム、６……抽出機のフインガ、７……ウオーキン
グビーム台車、８……ローラ、９……シリンダ、
１０……ボールねじジヤツキ、１１……電動機、
１２……抽出ドア、１３……ふく射管、１４……
バーナ。
Fig. 1 is a cross-sectional side view showing an example of a conventional heating furnace, Fig. 2 is a cross-sectional front view taken along the arrow line A in Fig. 1, and Fig. 3 is a cross-sectional side view showing a first embodiment of the present invention. Figure 4 is a cross-sectional front view taken along the arrow line B in Figure 3, Figure 5 is a cross-sectional side view showing the second embodiment of the present invention, and Figure 6 is a cross-sectional side view taken along the arrow line C in Figure 5. It is a cross-sectional front view. 1... Heating furnace, 2... Material to be heated, 3... Burner, 4... Walking beam, 5... Fixed beam, 6... Finger of extractor, 7... Walking beam trolley, 8... Roller, 9...Cylinder,
10...Ball screw jack, 11...Electric motor,
12...extraction door, 13...injection tube, 14...
Burna.
Claims (1)
インガを有する抽出機とを備えた加熱炉におい
て、前記フインガの装入位置が前記ウオーキング
ビームの炉幅方向の位置と一致し、かつ、該ウオ
ーキングビームの下降位置が前記フインガより下
位になるように該ウオーキングビームの下降量が
定められていることを特徴とする、加熱炉。1. In a heating furnace equipped with a walking beam and an extractor having at least two fingers, the charging position of the fingers coincides with the position of the walking beam in the width direction of the furnace, and the lowering position of the walking beam A heating furnace characterized in that a lowering amount of the walking beam is determined such that the walking beam is lower than the finger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10218182A JPS58221221A (en) | 1982-06-16 | 1982-06-16 | Heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10218182A JPS58221221A (en) | 1982-06-16 | 1982-06-16 | Heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58221221A JPS58221221A (en) | 1983-12-22 |
| JPS6252008B2 true JPS6252008B2 (en) | 1987-11-02 |
Family
ID=14320501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10218182A Granted JPS58221221A (en) | 1982-06-16 | 1982-06-16 | Heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58221221A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100682091B1 (en) * | 2006-03-13 | 2007-02-12 | 주식회사 포스코 | Extract door structure of furnace |
| KR101051297B1 (en) | 2008-09-25 | 2011-07-22 | 현대제철 주식회사 | Working beam furnace |
| CN104451088B (en) * | 2014-11-04 | 2017-06-27 | 江苏华菱锡钢特钢有限公司 | A kind of step heating-furnace dry-type encapsulated device of double plankers |
| CN113677944B (en) * | 2019-03-05 | 2023-07-21 | Sms集团股份公司 | Furnace with movable beam load handling system |
-
1982
- 1982-06-16 JP JP10218182A patent/JPS58221221A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58221221A (en) | 1983-12-22 |
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