JP2000028269A - Muffle holding structure in vertical muffle furnace - Google Patents
Muffle holding structure in vertical muffle furnaceInfo
- Publication number
- JP2000028269A JP2000028269A JP10192800A JP19280098A JP2000028269A JP 2000028269 A JP2000028269 A JP 2000028269A JP 10192800 A JP10192800 A JP 10192800A JP 19280098 A JP19280098 A JP 19280098A JP 2000028269 A JP2000028269 A JP 2000028269A
- Authority
- JP
- Japan
- Prior art keywords
- muffle
- furnace
- vertical
- top roll
- roll chamber
- 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
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Tunnel Furnaces (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、竪型マッフル炉、
特に、ダウンヒート方式の竪型マッフル炉の炉内マッフ
ル支持構造に関するものである。The present invention relates to a vertical muffle furnace,
In particular, the present invention relates to an in-furnace muffle support structure of a down-heat type vertical muffle furnace.
【０００２】[0002]
【従来の技術】従来、竪型マッフル炉においては、竪型
マッフル炉の上部に冷却帯を備えたアップヒート方式
と、竪型マッフル炉の下部に冷却帯を備えたダウンヒー
ト方式のものとがある。そして、竪型マッフル炉におい
ては、加熱帯を形成する炉内マッフルがその熱間時に熱
膨張するが、アップヒート方式においては、加熱帯の下
方に何も設置されないため、炉内マッフルの上端を固定
支持し、炉内マッフルの熱膨張を下方に逃がすことによ
り対処することが可能である。しかし、ダウンヒート方
式においては、加熱帯の下方には冷却帯が設置されてい
るため、炉内マッフルの熱膨張をそのまま下方に逃がす
ことができず、炉内マッフルの下端を固定支持して炉内
マッフル上部とその上方にあるトップロール室との間に
蛇腹構造の伸縮管を設けることにより対処している。2. Description of the Related Art Conventionally, vertical muffle furnaces are classified into an up-heat system having a cooling zone above the vertical muffle furnace and a down-heating system having a cooling zone below the vertical muffle furnace. is there. And, in the vertical muffle furnace, the muffle in the furnace forming the heating zone thermally expands during the hot period, but in the up-heat method, since nothing is installed below the heating zone, the upper end of the muffle in the furnace is closed. It can be dealt with by fixedly supporting and releasing the thermal expansion of the muffle in the furnace downward. However, in the down-heat method, since a cooling zone is provided below the heating zone, the thermal expansion of the furnace muffle cannot be released as it is, and the lower end of the furnace muffle is fixed and supported. This problem is solved by providing a bellows-type telescopic tube between the upper part of the inner muffle and the top roll chamber above the inner muffle.
【０００３】[0003]
【発明が解決しようとする課題】ところが、炉内マッフ
ルが一般的な長さである１６ｍの場合、炉内マッフルの
熱膨張は最大１０００ｍｍ程度となる。この熱膨張を伸
縮管にて吸収するには、伸縮管の伸縮量からみて３００
０〜４０００ｍｍのものが必要であり、それだけ竪型マ
ッフル炉の炉高が大きくなり、設備費が高価になるとい
う問題を有する。したがって、本発明は竪型マッフル炉
全体の炉高を余り大きくすることなく炉内マッフルの熱
膨張を吸収することのできる竪型マッフル炉の炉内マッ
フル支持構造を提供することを目的とする。However, when the muffle in the furnace has a general length of 16 m, the maximum thermal expansion of the muffle in the furnace is about 1000 mm. In order to absorb this thermal expansion in the telescopic tube, it is necessary to consider the expansion and contraction amount of the telescopic tube.
It is necessary to use a muffle furnace having a size of 0 to 4000 mm, so that the height of the vertical muffle furnace is increased and the equipment cost is increased. Accordingly, an object of the present invention is to provide an in-furnace muffle support structure of a vertical muffle furnace that can absorb the thermal expansion of the in-furnace muffle without increasing the furnace height of the entire vertical muffle furnace.
【０００４】[0004]
【課題を解決するための手段】本発明は前記目的を達成
するために、竪型マッフル炉の炉内マッフル支持構造
を、下部に冷却帯を、上部にトップロール室を備えた竪
型マッフル炉において、前記トップロール室を架台に設
置した昇降機構により昇降可能に設置し、かつ、前記炉
内マッフルを、架台に取り付けた加熱帯の炉体の上下部
開口壁に対し摺動自在に配設するとともに、炉内マッフ
ルの上端を前記トップロール室に連通させる一方、炉内
マッフルの下端を前記冷却帯に連通させるとともに、前
記炉内マッフルの変位量を検出する上下変位量検出機構
を設け、この上下変位量検出機構の検出値により前記昇
降機構を作動させるようにしたものである。According to the present invention, there is provided a vertical muffle furnace having a muffle supporting structure in a vertical muffle furnace, a cooling zone at a lower portion, and a top roll chamber at an upper portion. In the above, the top roll chamber is set up and down by a raising and lowering mechanism installed on a gantry, and the muffle in the furnace is slidably disposed on upper and lower opening walls of a furnace body of a heating zone mounted on the gantry. While, the upper end of the furnace muffle communicates with the top roll chamber, while the lower end of the furnace muffle communicates with the cooling zone, and a vertical displacement detection mechanism for detecting the displacement of the furnace muffle is provided. The elevating mechanism is operated based on the detection value of the vertical displacement detecting mechanism.
【０００５】[0005]
【発明の実施の形態】つぎに、本発明の実施の形態を図
１にしたがって説明する。竪型マッフル炉Ｔは、大略、
マッフル構造からなる加熱帯１、冷却帯４、トップロー
ル室７、マッフル保持台９、昇降機構１０、上下変位量
検出機構１５およびシュート１６とからなる。Next, an embodiment of the present invention will be described with reference to FIG. The vertical muffle furnace T is roughly
It comprises a heating zone 1 having a muffle structure, a cooling zone 4, a top roll chamber 7, a muffle holding table 9, an elevating mechanism 10, a vertical displacement detecting mechanism 15, and a chute 16.
【０００６】そして、前記加熱帯１の炉体２の下部は、
架台Ａ1上に設置され、また、冷却帯４を構成する徐冷
帯５および冷却帯６は、それぞれ加熱帯１の下方に位置
する架台Ａ2，Ａ3上に設置されている。The lower part of the furnace body 2 of the heating zone 1 is
The cooling zone 5 and the cooling zone 6 that are installed on the gantry A 1 and that constitute the cooling zone 4 are installed on gantry A 2 and A 3 located below the heating zone 1, respectively.
【０００７】前記トップロール室７は、内部に２個のト
ップロール８ａ，８ｂを備え、架台Ａ4上に設置された
昇降機構１０であるシリンダ装置に支持されたマッフル
保持台９上に設置され、上下に昇降可能となっている。[0007] The top roll chamber 7, internal to the two top rolls 8a, provided with 8b, are mounted on the muffle holder 9 which is supported by the cylinder device is a lifting mechanism 10 installed on the platform A 4 , Can be moved up and down.
【０００８】また、前記加熱帯１の炉内マッフル３の上
部および下部は、それぞれ炉体２の上部開口壁および下
部開口壁に遊嵌して摺動自在となっており、炉内マッフ
ル３の上端部は前記マッフル保持台９に固定されるとと
もに伸縮管１３を介して前記トップロール室７に連通す
る一方、炉内マッフル３の下端部は、伸縮管１４を介し
て前記徐冷帯５に連通している。そして、前記炉内マッ
フル３の下端部は適宜固定された上下変位量検出機構１
５であるロードセル上に支持されている。The upper part and the lower part of the furnace muffle 3 of the heating zone 1 are slidably fitted to the upper opening wall and the lower opening wall of the furnace body 2, respectively. The upper end is fixed to the muffle holding table 9 and communicates with the top roll chamber 7 via an elastic tube 13, while the lower end of the furnace muffle 3 is connected to the slow cooling zone 5 via an elastic tube 14. Communicating. The lower end of the in-furnace muffle 3 has a vertically-displaced amount detecting mechanism 1 which is appropriately fixed.
5 is supported on the load cell.
【０００９】前記入側シュート１６は、伸縮管１７を介
して前記トップロール室７に連通している。なお、１８
はカウンターウエイトで、前記架台Ａ4に固定した固定
フレーム１１上に設けた滑車１９に巻回し、一端をマッ
フル保持台９に取り付けたワイヤー２０の他端に取り付
けられ、マッフル保持台９を常時上方に付勢するもので
ある。また、前記固定フレーム１１部にはローラ等のガ
イド手段１２が設けてあり、マッフル保持台９の昇降を
スムーズに行なうようになっている。The entrance chute 16 communicates with the top roll chamber 7 via a telescopic tube 17. In addition, 18
The counterweight, the frame A 4 to rotate the pulley 19 wound provided on the fixed frame 11 fixed, attached to the other end of the wire 20 attached at one end to the muffle holder 9, always above the muffle holder 9 Is to be urged. A guide means 12 such as a roller is provided in the fixed frame 11 so that the muffle holding table 9 can be moved up and down smoothly.
【００１０】前記構成からなる竪型マッフル炉Ｔにおい
て、ステンレス等のストリップＷはシュート１６、トッ
プロール８ａ，８ｂを介して加熱帯１（炉内マッフル
３）に至り、加熱帯１（炉内マッフル３）を通過する間
に炉体２内に設けた図示しないバーナ等の加熱手段によ
り間接加熱され、その後、冷却帯４で冷却されて連続光
輝焼鈍処理がなされる。In the vertical muffle furnace T having the above structure, the strip W of stainless steel or the like reaches the heating zone 1 (muffle 3 in the furnace) via the chute 16 and the top rolls 8a and 8b, and the heating zone 1 (muffle 3 in the furnace). While passing through 3), it is indirectly heated by a heating means such as a burner (not shown) provided in the furnace body 2 and then cooled in the cooling zone 4 to perform continuous bright annealing treatment.
【００１１】ところで、前記炉内マッフル３がバーナ等
の加熱手段により加熱されると、炉内マッフル３は熱膨
張するが、炉内マッフル３の上端はマッフル保持台９に
固定されているため、前記ロードセル１５は熱膨張に対
応する荷重を受ける。この荷重により炉内マッフル３の
変位量が間接的に検出され、その検出値にもとづいてシ
リンダ装置１０が作動してマッフル保持台９が上昇す
る。つまり、マッフル保持台９の上昇により炉内マッフ
ル３の熱膨張を吸収する。なお、冷間時には、シリンダ
装置１０が縮小して元の状態に戻ることになる。When the muffle 3 in the furnace is heated by a heating means such as a burner, the muffle 3 in the furnace expands thermally. However, since the upper end of the muffle 3 in the furnace is fixed to the muffle holding table 9, The load cell 15 receives a load corresponding to thermal expansion. The amount of displacement of the muffle 3 in the furnace is indirectly detected by this load, and the cylinder device 10 operates to raise the muffle holding base 9 based on the detected value. That is, the rise of the muffle holding table 9 absorbs the thermal expansion of the muffle 3 in the furnace. In a cold state, the cylinder device 10 contracts and returns to the original state.
【００１２】前記実施の形態では、上下位置検出機構１
５としてロードセルを用いたが、レーザ等により炉内マ
ッフル３の下端位置を直接検出するようにしてもよく、
昇降機構１０もシリンダ装置に限るものでない。なお、
図に示すように、バランスウエイト１８を設けることに
よりマッフル保持台９の昇降をスムーズに行なうように
することが好ましい。また、前記伸縮管１３，１４は必
ずしも必要でない。さらに、前記実施の形態では、トッ
プロール室７とマッフル保持台９とは別体であるが、一
体構成としてもよい。In the above embodiment, the vertical position detecting mechanism 1
Although a load cell was used as 5, the lower end position of the muffle 3 in the furnace may be directly detected by a laser or the like.
The lifting mechanism 10 is not limited to the cylinder device. In addition,
As shown in the figure, it is preferable to provide the balance weight 18 so that the muffle holding table 9 can be smoothly moved up and down. The telescopic tubes 13 and 14 are not always necessary. Further, in the above-described embodiment, the top roll chamber 7 and the muffle holding table 9 are separate bodies, but they may be integrated.
【００１３】[0013]
【発明の効果】以上の説明で明らかなように、本発明に
おいては、炉内マッフルの熱膨張による伸縮を、その伸
縮量に見合う量だけ直接炉内マッフルを昇降させて吸収
するものである。したがって、従来、伸縮管により吸収
する場合、１０００ｍｍの熱膨張を吸収するのにその約
３〜４倍の長さの伸縮管を必要としていたものが、トッ
プロール室を１０００ｍｍ昇するだけでよく、それだけ
竪型マッフル炉の炉高を低くすることができる。As is apparent from the above description, in the present invention, expansion and contraction due to thermal expansion of the in-furnace muffle is absorbed by directly raising and lowering the in-furnace muffle by an amount corresponding to the amount of expansion and contraction. Therefore, conventionally, when absorbing by a telescopic tube, what required a telescopic tube of about 3 to 4 times the length to absorb the thermal expansion of 1000 mm, it is only necessary to raise the top roll chamber by 1000 mm, As a result, the furnace height of the vertical muffle furnace can be reduced.
【図１】 本発明の竪型マッフル炉の概略説明図。FIG. 1 is a schematic explanatory view of a vertical muffle furnace of the present invention.
１…加熱帯、２…炉体、３…炉内マッフル、４…冷却
帯、７…トップロール室、９…マッフル保持台、１０…
昇降機構、１５…上下変位量検出機構、１６…シュー
ト、Ｔ…竪型マッフル炉、Ｗ…ストリップ。DESCRIPTION OF SYMBOLS 1 ... Heating zone, 2 ... Furnace body, 3 ... Furnace muffle, 4 ... Cooling zone, 7 ... Top roll chamber, 9 ... Muffle holding stand, 10 ...
Elevating mechanism, 15 vertical displacement detection mechanism, 16 chute, T vertical muffle furnace, W strip.
Claims (1)
を備えた竪型マッフル炉において、前記トップロール室
を架台に設置した昇降機構により昇降可能に設置し、か
つ、前記炉内マッフルを、架台に取り付けた加熱帯の炉
体の上下部開口壁に対し摺動自在に配設するとともに、
炉内マッフルの上端を前記トップロール室に連通させる
一方、炉内マッフルの下端を前記冷却帯に連通させると
ともに、前記炉内マッフルの変位量を検出する上下変位
量検出機構を設け、この上下変位量検出機構の検出値に
より前記昇降機構を作動させることを特徴とする竪型マ
ッフル炉の炉内マッフル支持構造。In a vertical muffle furnace provided with a cooling zone at a lower part and a top roll chamber at an upper part, the top roll chamber is installed so as to be able to move up and down by an elevating mechanism installed on a gantry, and the muffle in the furnace is installed. , Slidably disposed on the upper and lower opening walls of the furnace body of the heating zone attached to the gantry,
While the upper end of the furnace muffle communicates with the top roll chamber, the lower end of the furnace muffle communicates with the cooling zone, and a vertical displacement detection mechanism for detecting the displacement of the furnace muffle is provided. An in-furnace muffle support structure for a vertical muffle furnace, wherein the lifting mechanism is operated based on a value detected by an amount detection mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10192800A JP2000028269A (en) | 1998-07-08 | 1998-07-08 | Muffle holding structure in vertical muffle furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10192800A JP2000028269A (en) | 1998-07-08 | 1998-07-08 | Muffle holding structure in vertical muffle furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000028269A true JP2000028269A (en) | 2000-01-28 |
Family
ID=16297208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10192800A Pending JP2000028269A (en) | 1998-07-08 | 1998-07-08 | Muffle holding structure in vertical muffle furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000028269A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003091462A1 (en) * | 2002-04-23 | 2003-11-06 | Chugai Ro Co., Ltd. | Vertical muffle type heat treating furnace |
| KR20060098092A (en) * | 2005-03-08 | 2006-09-18 | 주식회사 포스코 | Apparatus for adjusting the position of muffle for vertical annealing furnace |
| WO2014191221A1 (en) * | 2013-05-31 | 2014-12-04 | Sandvik Materials Technology Deutschland Gmbh | Furnace muffle for an annealing furnace |
| CN113528773A (en) * | 2021-07-09 | 2021-10-22 | 萧县威辰机电工程设备有限公司 | Steel bar quenching equipment for building and use method thereof |
| CN113528781A (en) * | 2021-01-25 | 2021-10-22 | 陈学森 | Crawler-type controllable atmosphere brazing heat treatment device |
-
1998
- 1998-07-08 JP JP10192800A patent/JP2000028269A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003091462A1 (en) * | 2002-04-23 | 2003-11-06 | Chugai Ro Co., Ltd. | Vertical muffle type heat treating furnace |
| KR20060098092A (en) * | 2005-03-08 | 2006-09-18 | 주식회사 포스코 | Apparatus for adjusting the position of muffle for vertical annealing furnace |
| WO2014191221A1 (en) * | 2013-05-31 | 2014-12-04 | Sandvik Materials Technology Deutschland Gmbh | Furnace muffle for an annealing furnace |
| CN105264321A (en) * | 2013-05-31 | 2016-01-20 | 山特维克原料技术德国公开股份有限公司 | Furnace muffle for an annealing furnace |
| KR20160015261A (en) * | 2013-05-31 | 2016-02-12 | 산드빅 마테리알스 테크놀로지 도이칠란트 게엠베하 | Furnace muffle for an annealing furnace |
| JP2016522382A (en) * | 2013-05-31 | 2016-07-28 | サンドヴィック マテリアルズ テクノロジー ドイチュラント ゲーエムベーハー | Furnace muffle for annealing furnace |
| US10254047B2 (en) | 2013-05-31 | 2019-04-09 | Sandvik Materials Technology Deutschland Gmbh | Furnace muffle for an annealing furnace |
| KR102144607B1 (en) * | 2013-05-31 | 2020-08-13 | 산드빅 마테리알스 테크놀로지 도이칠란트 게엠베하 | Furnace muffle for an annealing furnace |
| CN113528781A (en) * | 2021-01-25 | 2021-10-22 | 陈学森 | Crawler-type controllable atmosphere brazing heat treatment device |
| CN113528781B (en) * | 2021-01-25 | 2023-03-31 | 陈学森 | Crawler-type controllable atmosphere brazing heat treatment device |
| CN113528773A (en) * | 2021-07-09 | 2021-10-22 | 萧县威辰机电工程设备有限公司 | Steel bar quenching equipment for building and use method thereof |
| CN113528773B (en) * | 2021-07-09 | 2023-08-18 | 萧县威辰机电工程设备有限公司 | Steel bar quenching equipment for building and application method thereof |
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