JPH072976B2 - Coil annealing furnace - Google Patents
Coil annealing furnaceInfo
- Publication number
- JPH072976B2 JPH072976B2 JP60196171A JP19617185A JPH072976B2 JP H072976 B2 JPH072976 B2 JP H072976B2 JP 60196171 A JP60196171 A JP 60196171A JP 19617185 A JP19617185 A JP 19617185A JP H072976 B2 JPH072976 B2 JP H072976B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- furnace
- wind box
- fan
- plenum 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.)
- Expired - Lifetime
Links
- 238000000137 annealing Methods 0.000 title claims description 14
- 230000005855 radiation Effects 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 239000011810 insulating material Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 description 25
- 238000010438 heat treatment Methods 0.000 description 18
- 238000001816 cooling Methods 0.000 description 12
- 238000002791 soaking Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は製鉄所の薄板熱処理工程におけるタイトコイル
等のコイル焼鈍炉に関するものである。TECHNICAL FIELD The present invention relates to a coil annealing furnace such as a tight coil in a thin plate heat treatment process of an iron mill.
［従来の技術］ 箱型コイル焼鈍炉の従来装置の断面例を第７図に示す。[Prior Art] FIG. 7 shows an example of a cross section of a conventional apparatus for a box-type coil annealing furnace.
0.3〜2.0mm厚の薄板をバームクーヘン状に密に巻いた物
をタイトコイルａと称する。該コイルａを支持するプレ
ナムチャンバーｂが床面を構成している。該プレナムチ
ャンバーｂは金属板を格子状に組み風の流れを自在にし
ている。該プレナムチャンバーｂの一端にモータｅと連
結したファンｄが設けられ、更にファンｄの吐出側に風
箱ｋが設けられている。A tight coil a in which a thin plate having a thickness of 0.3 to 2.0 mm is closely wound in a Baumkuchen shape is referred to as a tight coil a. A plenum chamber b that supports the coil a constitutes a floor surface. In the plenum chamber b, metal plates are assembled in a grid pattern so that the wind can flow freely. A fan d connected to a motor e is provided at one end of the plenum chamber b, and a wind box k is provided on the discharge side of the fan d.
コイルａの上方に複数個の輻射管ｃが支持されている。
該輻射管ｃの一端側にバーナ（図示せず）、他端側に排
気ダクト（図示せず）が設置されている。A plurality of radiation tubes c are supported above the coil a.
A burner (not shown) is installed at one end of the radiation tube c, and an exhaust duct (not shown) is installed at the other end.
上記風箱ｋの途中に炉殻ｊ及び断熱材ｉを貫通してクー
ラーｆが設けられている。該クーラーｆにはシリンダー
ｈ及び気密用ベローズｇをも備えている。A cooler f is provided in the middle of the wind box k so as to penetrate the furnace shell j and the heat insulating material i. The cooler f is also provided with a cylinder h and an airtight bellows g.
コイルａはその冶金上の要求により、750℃程度に加熱
され、十分に均熱された後、徐冷処理される。炉内には
窒素と水素の混合ガスが封入されている。The coil a is heated to about 750 ° C. according to its metallurgical requirements, soaked sufficiently, and then gradually cooled. A mixed gas of nitrogen and hydrogen is enclosed in the furnace.
加熱、均熱期には（第７図において）クーラーｆはシリ
ンダｈで炉外に十分に引き出しておく。バーナで発生し
た高温燃焼ガスを内包せる輻射管ｃの外表面より熱が輻
射され、モータｅの回転によるファンｄが第７図に示す
矢印の方向に炉内ガスを循環させる。During the heating and soaking period (in FIG. 7), the cooler f is sufficiently drawn out of the furnace by the cylinder h. Heat is radiated from the outer surface of the radiant tube c containing the high temperature combustion gas generated in the burner, and the fan d by the rotation of the motor e circulates the gas in the furnace in the direction of the arrow shown in FIG.
第８図によりコイル加熱の仕組を説明する。輻射管ｃの
外表面から外向きに放出された熱輻射線は概ねコイルａ
に向う分、上方の断熱材ｉに向う分及び炉内循環ガスに
吸収される分に分かれる。該上方断熱材ｉの表面からコ
イルａに輻射線が放射される。The mechanism for heating the coil will be described with reference to FIG. The heat radiation emitted outward from the outer surface of the radiant tube c is approximately equal to the coil a.
To the upper heat insulating material i and the portion absorbed into the circulating gas in the furnace. Radiation is radiated from the surface of the upper heat insulating material i to the coil a.
このことから、コイルａの上面は概ね輻射管ｃ及び上方
断熱材ｉの熱輻射線ｍとガス流ｎによる対流により盛ん
に加熱される。コイルａの側面の加熱はその角度からガ
ス流による対流加熱が主となり、輻射管ｃからの輻射分
は激減する。コイルａの下面についてはガス流ｎによる
対流加熱のみとなる。For this reason, the upper surface of the coil a is actively heated by the convection of the radiation tube c and the heat radiation m of the upper heat insulating material i and the gas flow n. The side surface of the coil a is mainly heated by convection due to the gas flow from that angle, and the amount of radiation from the radiation tube c is drastically reduced. The lower surface of the coil a is only convection heated by the gas flow n.
コイルａの上面の一点Ａと下面の一点Ｂの温度上昇下降
曲線を第９図に示す。点Ｂは点Ａと較べて温度上昇が遅
れる。上述の輻射線の有無、点Ａ付近で吸収された残り
の熱ガスで点Ｂを加熱すること、更に熱容量の大きな金
属製のプレナムチャンバーｂと接していることから（第
９図）時間遅れT1が生じる。第９図において、時間帯を
Ｉ−加熱期、II−均熱期、III−冷却期とする。FIG. 9 shows the temperature rise / fall curves of the point A on the upper surface and the point B on the lower surface of the coil a. The temperature rise at point B is delayed compared to point A. The presence or absence of the above-mentioned radiation, the point B being heated by the remaining hot gas absorbed near the point A, and the contact with the metal plenum chamber b having a large heat capacity (Fig. 9) time delay T 1 occurs. In FIG. 9, the time zones are I-heating period, II-soaking period, and III-cooling period.
点Ｂが目標温度に達してから均熱IIを実施し、次に冷却
を行う。第７図で輻射管ｃ端のバーナ（図示せず）を消
火しクーラーｆをシリンダｈで風箱ｋ内に押し出す。ク
ーラーｆはその内部に冷却水管を有し、通過するガスを
冷却する。循環ガスが冷却され、このガスにより断熱材
ｉ、コイルａ、プレナムチャンバーｂ、ファンｄ、輻射
管ｃ及び風箱ｋは徐々に温度が下がる。After the point B reaches the target temperature, soaking II is performed and then cooling is performed. In FIG. 7, the burner (not shown) at the end of the radiant tube c is extinguished and the cooler f is pushed out into the wind box k by the cylinder h. The cooler f has a cooling water pipe inside and cools the passing gas. The circulating gas is cooled, and the temperature of the heat insulating material i, the coil a, the plenum chamber b, the fan d, the radiation tube c, and the wind box k is gradually lowered by this gas.
従って、コイルａから見ると最も冷たいガスがコイルの
上面に当り、次に側面に沿い、最後にプレナムチャンバ
ーｂ内を流れ、コイル下面はプレナムチャンバーｂを介
して冷却される。このことから、前記点Ａと点Ｂを比較
すると点Ｂの温度降下は大幅に遅れ第９図で時間遅れT2
が生ずる。Therefore, when viewed from the coil a, the coldest gas hits the upper surface of the coil, then flows along the side surface, and finally flows in the plenum chamber b, and the lower surface of the coil is cooled through the plenum chamber b. From this, when the points A and B are compared, the temperature drop at the point B is significantly delayed, and the time delay T 2 is delayed in FIG.
Occurs.
［発明が解決しようとする問題点］ このように従来の箱型コイル焼鈍炉では、加熱、冷却期
共点Ｂが最悪条件点となるため、 (i) コイル下面の点Ｂで操業時間が決り、その時間が
長い、 (ii) 生産量が制限される、 (iii) 燃料消費量が多く不経済である、 等の問題点がある。[Problems to be Solved by the Invention] As described above, in the conventional box-shaped coil annealing furnace, since the common point B of the heating and cooling periods is the worst condition point, (i) the operating time is determined at the point B on the lower surface of the coil. , It takes a long time, (ii) production is limited, (iii) it consumes a lot of fuel and is uneconomical.
［問題点を解決するための手段］ 上述の従来の問題点を解決し、処理時間の短縮、生産能
力の向上及び省エネ化を図ることを目的として本発明で
は、断熱材で内張した炉内にコイル支持用のプレナムチ
ャンバーを設け、該プレナムチャンバーの上方に輻射管
をコイル収容用のスペースをあけて配設し、前記プレナ
ムチャンバー内に噴射孔を多数有する噴射ノズルを配設
し、更に前記炉内の一側壁側に、上部及び略中央部に開
口部を有する風箱を設け、該風箱内における前記略中央
部の開口部にファンを設置すると共に該ファンの上方及
び下方にクーラーを風箱内に出し入れ可能に配設し、該
風箱の前記上部開口部に仕切弁を設けて開閉し得るよう
にすると共に該風箱の下端部を前記噴射ノズルと連通す
ることによりコイル焼鈍炉を構成した。[Means for Solving Problems] In order to solve the above-mentioned conventional problems, shorten the processing time, improve the production capacity, and save energy, in the present invention, the inside of the furnace lined with a heat insulating material is used. A plenum chamber for supporting the coil is provided, a radiation tube is provided above the plenum chamber with a space for accommodating the coil, and an injection nozzle having a large number of injection holes is provided in the plenum chamber. A wind box having openings in the upper and substantially central portions is provided on one side wall of the furnace, and a fan is installed in the opening in the substantially central portion in the wind box and a cooler is provided above and below the fan. A coil annealing furnace is arranged so that it can be taken in and out from the wind box, and a sluice valve is provided at the upper opening of the wind box so that the wind box can be opened and closed, and the lower end of the wind box communicates with the injection nozzle. Configured.
［作用］ コイルを加熱する際はコイルの上方からは輻射管からの
輻射熱により、下方からは加熱された炉内ガスをファン
により風箱内に取り入れ、噴射ノズルに導いてコイルの
下側から吹き上げることによって、コイルを上方及び下
方の二方向から加熱することができる。[Operation] When the coil is heated, the radiant heat from the radiant tube from above the coil, and the heated furnace gas from below into the wind box with a fan, guides it to the injection nozzle and blows it up from below the coil. Thus, the coil can be heated from two directions, the upper side and the lower side.
コイルを冷却する際は、輻射管による加熱を停止し、風
箱上部開口部を開いて前記フアンにより風箱内に取り入
れた炉内ガスをクーラーにより冷却した後、前記上記開
口部から吹き出して冷却ガスの自然降下によりコイル上
部を包囲すると共に前記噴射ノズルによりコイル下部に
吹き上げることによって、コイルを上方及び下方の二方
向から冷却することができる。When cooling the coil, stop the heating by the radiant tube, open the upper opening of the wind box, cool the furnace gas taken into the wind box by the fan with the cooler, and then blow it out from the opening The coil can be cooled from two directions, the upper side and the lower side, by surrounding the upper part of the coil by the natural fall of gas and blowing up to the lower part of the coil by the injection nozzle.
従って、加熱、均熱、冷却の処理時間が短縮され、生産
能力が向上し、省エネ化を図ることができる。Therefore, the processing time of heating, soaking, and cooling is shortened, the production capacity is improved, and energy saving can be achieved.
［実 施 例］ 以下、本発明の実施例を図面を参照しつつ説明する。[Examples] Examples of the present invention will be described below with reference to the drawings.
第１図乃至第６図は本発明の一実施例を示すもので、１
はタイトコイル等のコイル、２はコイル１の上方に配設
した輻射管、３は前記コイル１を支持するためのもので
金属板を格子状に組んでなるプレナムチャンバー、４は
箱型の炉殻、５は断熱材であり、これらは前記従来の加
熱装置におけると略同様である。該プレナムチャンバー
３の内部に、上吹ノズル６を複数有するダクト状の噴射
ノズル７をプレナムチャンバー３の略全長に亘って配設
してある。該噴射ノズル７の先端側は閉塞してあり、基
端側は炉内片側を壁に沿って仕切板８で仕切ってなる風
箱９と連通し得るよう連結してある。1 to 6 show an embodiment of the present invention.
Is a coil such as a tight coil, 2 is a radiation tube disposed above the coil 1, 3 is a plenum chamber for supporting the coil 1, and is a metal plate assembled in a grid pattern, and 4 is a box-shaped furnace The shells 5 are heat insulating materials, which are substantially the same as those in the conventional heating device. Inside the plenum chamber 3, a duct-shaped injection nozzle 7 having a plurality of upper blowing nozzles 6 is arranged over substantially the entire length of the plenum chamber 3. The tip end side of the injection nozzle 7 is closed, and the base end side is connected so as to be able to communicate with a wind box 9 formed by partitioning one side in the furnace along a wall with a partition plate 8.
該風箱９内の略中央部の開口部にファン10を設け、前記
炉殻４の外側に設置したモータ11により該ファン10を駆
動し得るようにしてある。A fan 10 is provided at an opening in a substantially central portion of the wind box 9, and the fan 10 can be driven by a motor 11 installed outside the furnace shell 4.
該風箱９内のファン10上方及び下方にクーラー12,12を
ベローズ13,13により風箱９内に気密状態を保持したま
ま進退可能に配設し、前記炉殻４外壁に固定したアーム
14,14により支持せしめたシリンダー15,15により前記ク
ーラー12,12を夫々進退駆動し得るようにしてある。An arm fixed to the outer wall of the furnace shell 4 by installing coolers 12 and 12 above and below the fan 10 in the wind box 9 so as to be able to move forward and backward while maintaining an airtight state in the wind box 9 by bellows 13 and 13.
Cylinders 15, 15 supported by 14, 14 can drive the coolers 12, 12 forward and backward respectively.
該風箱９の上端部の仕切板８に開口部16を設け、該開口
部16を開閉し得る仕切弁17を前記炉殻４及び仕切弁８を
貫通し且つジャバラ18により気密状態を保持し得るよう
配設してあり、該仕切弁17をシーブ19に巻いたロープ20
により昇降することにより前記開口部16を開閉し得るよ
うにしてある。An opening 16 is provided in a partition plate 8 at the upper end of the wind box 9, and a partition valve 17 capable of opening and closing the opening 16 penetrates the furnace shell 4 and the partition valve 8 and maintains an airtight state by a bellows 18. Rope 20 in which the sluice valve 17 is wound around the sheave 19
The opening 16 can be opened and closed by moving up and down.
更に、前記輻射管２上方の炉内に天井ファン21,21を配
設してある。Further, ceiling fans 21, 21 are arranged in the furnace above the radiation tube 2.
尚、炉内には窒素と水素の混合ガスを封入してあり、図
示してないが前記輻射管２の一端にはバーナ、他端には
排ガスダクトを設けてある。A mixed gas of nitrogen and hydrogen is sealed in the furnace. Although not shown, a burner is provided at one end of the radiation tube 2 and an exhaust gas duct is provided at the other end.
本発明の装置によるコイル１の焼鈍も加熱、均熱、冷却
の３工程からなっており、基本的には前記従来例の場合
と同じであるが、以下に詳述する。Annealing of the coil 1 by the apparatus of the present invention also comprises three steps of heating, soaking, and cooling, which is basically the same as the case of the conventional example, but will be described in detail below.
先ず、第２図及び第３図により加熱、均熱の態様を説明
する。シリンダー15,15でクーラー12,12を引き出してお
く。シーブ19によりロープ20を差出して仕切弁17を下限
保持し、風箱９の上端開口部16を閉止しておく。炉内ガ
スはファン10により（第２図では左から右に）吸込まれ
風箱９内を矢印の方向に下降し、噴射ノズル７を通って
該噴射ノズル７の上吹ノズル６から上方に噴射される。
一方、輻射管２の外周から熱輻射線が発射される。輻射
管２の熱輻射線はコイル１に向う分、天井断熱材５に向
う分及び炉内ガスを暖める分に分かれる。天井ファン21
を配設した場合は、天井ファン21を回転しコイル１上方
に滞留する炉内ガスを下方に流すことにより炉内ガスで
コイル１を対流加熱することができる。一方、ファン10
で加圧された高温の炉内ガスは前記の如くコイル１の下
面に吹きつけられコイル１の下面が加熱される。First, the mode of heating and soaking will be described with reference to FIGS. 2 and 3. Pull out the coolers 12,12 with the cylinders 15,15. The rope 20 is pulled out by the sheave 19 to hold the sluice valve 17 at the lower limit, and the upper end opening 16 of the wind box 9 is closed. The gas in the furnace is sucked in by the fan 10 (from left to right in FIG. 2), descends in the direction of the arrow in the wind box 9, passes through the injection nozzle 7, and is injected upward from the upper blowing nozzle 6 of the injection nozzle 7. To be done.
On the other hand, thermal radiation is emitted from the outer circumference of the radiation tube 2. The heat radiation of the radiant tube 2 is divided into a part for the coil 1, a part for the ceiling heat insulating material 5, and a part for heating the gas in the furnace. Ceiling fan 21
In case of arranging, the coil 1 can be convectively heated by the in-furnace gas by rotating the ceiling fan 21 and causing the in-furnace gas staying above the coil 1 to flow downward. Meanwhile, fan 10
The high-temperature furnace gas pressurized by is blown onto the lower surface of the coil 1 as described above, and the lower surface of the coil 1 is heated.
以上を要約すると、本実施例でのコイル１はその上面が
主に輻射加熱、下面が噴流による対流加熱により温めら
れることになる。上、下面のバランスはファン10の回転
数、及び天井ファン21を配設した場合は天井ファン21の
回転数を変更することで容易に制御できる。To summarize the above, the coil 1 in the present embodiment is warmed mainly by radiant heating on the upper surface and convective heating by the jet on the lower surface. The balance between the upper and lower surfaces can be easily controlled by changing the rotation speed of the fan 10 and, if the ceiling fan 21 is provided, changing the rotation speed of the ceiling fan 21.
次に、第４図及び第５図により冷却の様態を示す。シリ
ンダー15,15でクーラー12,12を風箱９内に押し出す。シ
ーブ19及びロープ20で仕切弁17を上限に保持する。輻射
管２端部のバーナを消火する。クーラー12,12によりフ
ァン10で加圧された炉内ガスを冷却し風箱９の上方及び
下方に送り、上方は天井ファン21の方向へベーン22、開
口部16を経て吹出され、下方は噴射ノズル７を介して、
コイル１に向って噴射される。Next, a mode of cooling is shown in FIGS. 4 and 5. The cylinders 15 and 15 push the coolers 12 and 12 into the wind box 9. The sluice 19 and the rope 20 hold the sluice valve 17 at the upper limit. Extinguish the burner at the end of the radiation tube 2. The in-furnace gas pressurized by the fan 10 by the coolers 12, 12 is cooled and sent to the upper and lower parts of the wind box 9, the upper part is blown toward the ceiling fan 21 through the vane 22 and the opening 16, and the lower part is injected. Through the nozzle 7,
It is jetted toward the coil 1.
すなわち、天井に沿って流れる炉内ガスは天井ファン2
1,21で加圧されコイル１の方に向きを変えた流れとな
り、コイル１の上面に衝突し、上面に沿って流れつつコ
イル１の表面の熱を奪う。一方、下方の噴射ノズル７内
ガスは上方に噴射されコイル１の下面に衝突し、コイル
１の熱を奪う。上下面から衝突した炉内ガスは各々コイ
ル１の側面に沿って流れつつ熱を奪った後、ファン10に
吸込まれる。That is, the gas in the furnace flowing along the ceiling is
It becomes a flow that is pressurized by 1,21 and turned to the coil 1, collides with the upper surface of the coil 1, and flows along the upper surface to remove heat from the surface of the coil 1. On the other hand, the gas in the lower injection nozzle 7 is injected upward and collides with the lower surface of the coil 1 to remove the heat of the coil 1. The in-furnace gas colliding from the upper and lower surfaces draws heat while flowing along the side surfaces of the coil 1, and is then sucked into the fan 10.
コイル１上／下面の冷却は天井ファン21,21の回転数の
変更と、クーラー12,12への供給水量の増減で容易に制
御できる。The cooling of the upper and lower surfaces of the coil 1 can be easily controlled by changing the number of rotations of the ceiling fans 21,21 and increasing or decreasing the amount of water supplied to the coolers 12,12.
第５図においてコイル１の点をＣ、Ｄ、Ｅとすると第６
図の温度曲線に示すごとく、上面点Ｃと下面点Ｄはほぼ
同一曲線上を移行し、コイル中央の点Ｅがやや遅れる。
しかし、この遅れT3、T4は従来例のT1、T2の半分以下に
なり、この結果均熱時間も短縮することが可能になり、
加熱、均熱、冷却期全てにおいて時間を短縮できる。In FIG. 5, the points of the coil 1 are designated as C, D, and E, and
As shown by the temperature curve in the figure, the upper surface point C and the lower surface point D move on substantially the same curve, and the point E at the center of the coil is slightly delayed.
However, the delays T 3 and T 4 are less than half of T 1 and T 2 of the conventional example, and as a result, the soaking time can be shortened,
Time can be shortened in all heating, soaking, and cooling periods.
尚、本発明のコイル焼鈍炉は上述の実施例のみに限定さ
れるものではなく、天井ファンは加熱過程での効果が比
較的少なく、冷却過程で使用するのが有効であるので、
天井ファンを有しなくとも本発明の効果を充分に保てる
こと等本発明の要旨を逸脱しない範囲内において種々変
更を加え得ることは勿論である。Incidentally, the coil annealing furnace of the present invention is not limited to only the above-mentioned embodiment, since the ceiling fan is relatively less effective in the heating process, it is effective to use in the cooling process,
It is needless to say that various changes can be made without departing from the gist of the present invention such that the effect of the present invention can be sufficiently maintained without having a ceiling fan.
［発明の効果］ 以上説明したように本発明のコイル焼鈍炉によれば、下
記の如き種々の優れた効果を発揮する。[Effects of the Invention] As described above, the coil annealing furnace of the present invention exhibits various excellent effects as described below.
(I) コイルを上下面から加熱、冷却するので最冷点
（最温点）をコイル中央とすることができる。(I) Since the coil is heated and cooled from above and below, the coldest point (hottest point) can be the center of the coil.
(II) 焼鈍時間を大幅に短縮できる。(II) The annealing time can be shortened significantly.
(III) 生産量が増加し、燃料の単位消費量を低下させ
ることができ、省エネルギー対策上極めて有用である。(III) The production amount can be increased and the unit consumption of fuel can be reduced, which is extremely useful for energy conservation measures.
第１図は本発明のコイル焼鈍炉の一実施例の説明図、第
２図は本発明のコイル焼鈍炉によるコイルの加熱、均熱
状態を示す説明図、第３図は第２図におけるコイルの加
熱状態の詳細説明図、第４図は本発明のコイル焼鈍炉に
よるコイルの冷却状態を示す説明図、第５図は第４図に
おけるコイルの冷却状態の詳細説明図、第６図は第５図
に示したコイルの各点の温度上昇下降パターンを示す線
図、第７図は従来のコイル焼鈍炉の一例を示す説明図、
第８図は第７図におけるコイルの加熱状態の詳細説明
図、第９図は第８図に示したコイルの各点の温度上昇下
降パターンを示す線図である。 １はコイル、２は輻射管、３はプレナムチャンバー、７
は噴射ノズル、９は風箱、10はファン、12はクーラー、
16は開口部、17は仕切弁、21は天井ファンを示す。FIG. 1 is an explanatory view of an embodiment of the coil annealing furnace of the present invention, FIG. 2 is an explanatory view showing heating and soaking state of the coil by the coil annealing furnace of the present invention, and FIG. 3 is a coil in FIG. 4 is a detailed explanatory view of the heating state of FIG. 4, FIG. 4 is an explanatory view showing the cooling state of the coil by the coil annealing furnace of the present invention, FIG. 5 is a detailed explanatory view of the cooling state of the coil in FIG. 4, and FIG. The diagram which shows the temperature rise and fall pattern of each point of the coil shown in FIG. 5, FIG. 7 is the explanatory view which shows an example of the conventional coil annealing furnace,
FIG. 8 is a detailed explanatory view of the heating state of the coil in FIG. 7, and FIG. 9 is a diagram showing a temperature rising / falling pattern of each point of the coil shown in FIG. 1 is a coil, 2 is a radiation tube, 3 is a plenum chamber, 7
Is an injection nozzle, 9 is a wind box, 10 is a fan, 12 is a cooler,
16 is an opening, 17 is a sluice valve, and 21 is a ceiling fan.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 井浦 透 東京都千代田区大手町２丁目２番１号 石 川島播磨重工業株式会社本社内 (72)発明者 松本 健二郎 東京都千代田区大手町２丁目２番１号 石 川島播磨重工業株式会社本社内 (56)参考文献 特公 昭52−20925（ＪＰ，Ｂ１) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toru Iura 2-2-1 Otemachi, Chiyoda-ku, Tokyo Ishi Kawashima Harima Heavy Industries Ltd. (72) Inventor Kenjiro Matsumoto 2-chome, Otemachi, Chiyoda-ku, Tokyo No. 1 Ishi Kawashima Harima Heavy Industries, Ltd. Head Office (56) References Japanese Patent Publication No. 52-20925 (JP, B1)
Claims (1)
レナムチャンバーを設け、該プレナムチャンバーの上方
に輻射管をコイル収容用のスペースをあけて配設し、前
記プレナムチャンバー内に噴射孔を多数有する噴射ノズ
ルを配設し、更に前記炉内の一側壁側に、上部及び略中
央部に開口部を有する風箱を設け、該風箱内における前
記略中央部の開口部にファンを設置すると共に該ファン
の上方及び下方にクーラーを風箱内に出し入れ可能に配
設し、該風箱の前記上部開口部に仕切弁を設けて開閉し
得るようにすると共に該風箱の下端部を前記噴射ノズル
と連通してなることを特徴とするコイル焼鈍炉。1. A plenum chamber for supporting a coil is provided in a furnace lined with a heat insulating material, and a radiation tube is disposed above the plenum chamber with a space for accommodating the coil, and is injected into the plenum chamber. An injection nozzle having a large number of holes is arranged, and a wind box having an opening at an upper portion and a substantially central portion is provided on one side wall side of the furnace, and a fan is provided at the opening at the substantially central portion in the wind box. And a cooler above and below the fan so that the cooler can be put in and taken out of the wind box, and a sluice valve is provided at the upper opening of the wind box so that the cooler can be opened and closed, and the lower end of the wind box. A coil annealing furnace, characterized in that a part thereof communicates with the injection nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60196171A JPH072976B2 (en) | 1985-09-05 | 1985-09-05 | Coil annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60196171A JPH072976B2 (en) | 1985-09-05 | 1985-09-05 | Coil annealing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6256532A JPS6256532A (en) | 1987-03-12 |
| JPH072976B2 true JPH072976B2 (en) | 1995-01-18 |
Family
ID=16353380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60196171A Expired - Lifetime JPH072976B2 (en) | 1985-09-05 | 1985-09-05 | Coil annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072976B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101485657B1 (en) * | 2013-03-14 | 2015-01-23 | 주식회사 포스코 | Apparatus for annealing coils |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01129930A (en) * | 1987-11-16 | 1989-05-23 | Daido Steel Co Ltd | heat treatment furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220925A (en) * | 1975-08-11 | 1977-02-17 | Sumitomo Metal Ind Ltd | Process for making non-directional cold- rolled electromagnetic steel strip |
-
1985
- 1985-09-05 JP JP60196171A patent/JPH072976B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101485657B1 (en) * | 2013-03-14 | 2015-01-23 | 주식회사 포스코 | Apparatus for annealing coils |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6256532A (en) | 1987-03-12 |
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