JPH02309189A - Induction heating device - Google Patents
Induction heating deviceInfo
- Publication number
- JPH02309189A JPH02309189A JP13180889A JP13180889A JPH02309189A JP H02309189 A JPH02309189 A JP H02309189A JP 13180889 A JP13180889 A JP 13180889A JP 13180889 A JP13180889 A JP 13180889A JP H02309189 A JPH02309189 A JP H02309189A
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- insulating layer
- shape
- heated
- induction 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 34
- 230000006698 induction Effects 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 4
- 230000001788 irregular Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Landscapes
- Furnace Details (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は誘導加熱装置、特に黒鉛化に適した誘導加熱
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an induction heating device, particularly an induction heating device suitable for graphitization.
第３図は、例えば特公昭６０−４１６０７号公報に示さ
れた従来の誘導加熱装置の平面図であり、第４図はその
断面図である。第３図、第４図において、（１）は誘導
加熱で黒鉛化処理される炭素の焼成品からなる被加熱物
、（ａは被加熱物（１）を加熱するための誘導加熱コイ
ルで、耐火セメントでモールドされている。（３）は炭
素粉からなる断熱層、４）は誘導加熱装置本体（５１を
ささえる耐火レンガからなる炉床である。FIG. 3 is a plan view of a conventional induction heating device disclosed in, for example, Japanese Patent Publication No. 60-41607, and FIG. 4 is a sectional view thereof. In FIGS. 3 and 4, (1) is an object to be heated consisting of a fired product of carbon that is graphitized by induction heating, (a is an induction heating coil for heating the object (1), It is molded with refractory cement. (3) is a heat insulating layer made of carbon powder, and 4) is a hearth made of refractory bricks that supports the induction heating device body (51).
このような誘導加熱装置は、誘導加熱コイル（２）に交
流電流を流すと、被加熱物（１）にうす電流が流れ、ジ
ュール熱により被加熱物（１）が加熱される。In such an induction heating device, when an alternating current is passed through the induction heating coil (2), a thin current flows through the object to be heated (1), and the object to be heated (1) is heated by Joule heat.
このとき、被加熱物（１）を包む断熱層（３）は、被加
熱物（１）を大気から遮断してその［！Ｌｆヒ消粍を防
止するとともに、誘導加熱コイル（２１の内壁面が、被
加熱物（１）からの輻射熱で損傷するのを防止している
。At this time, the heat insulating layer (3) surrounding the object to be heated (1) shields the object to be heated (1) from the atmosphere and the [! This prevents Lf loss and also prevents the inner wall surface of the induction heating coil (21) from being damaged by radiant heat from the object to be heated (1).
この断熱層（３）には、被加熱物（１）を黒鉛化する目
的から、熱伝導率が小さくまた２５００〜３０００℃の
加熱温度に耐える断熱材としてカーボン系の材料が使用
され、−ａには木炭、コークス、カーボンブラック等の
粉状材料、炭素粉が用いられている。For the purpose of graphitizing the object to be heated (1), this heat insulating layer (3) uses a carbon-based material as a heat insulating material that has low thermal conductivity and can withstand heating temperatures of 2,500 to 3,000°C. Powdered materials such as charcoal, coke, carbon black, and carbon powder are used for this purpose.
従来の誘導加熱装＝は以上のように、断熱層（３）とし
て粉状材料を使用しているので、断熱層（３）の形成ま
た加熱後の取出しは、例えばパイプ状の先端から上記粉
状材料を噴出また吸引する方式の挿入・取出し装置を用
いていた。この結果、これら装置の断熱性の制約から、
加熱終了後、断熱層（３）の温度がその酸化消耗防止の
観点から定まる温度（通常４００℃程度）より更に低い
温度にまで低下しないと取出し作業を開始することがで
きず、その分冷却のための時間が長くなり加熱装置とし
ての回転率が良くないという問題点があった。As described above, the conventional induction heating device uses a powder material as the heat insulating layer (3), so the formation of the heat insulating layer (3) and the removal after heating are done by, for example, discharging the powder from the pipe-shaped tip. An insertion/removal device was used that ejected or sucked the material. As a result, due to the thermal insulation limitations of these devices,
After heating, the removal operation cannot be started unless the temperature of the heat insulating layer (3) falls to a temperature lower than the temperature determined from the viewpoint of preventing oxidation and consumption (usually around 400°C), and the cooling process must be performed accordingly. There was a problem that the heating time was long and the rotation rate as a heating device was not good.
更に、粉状材料を吸うため断熱層Ｂ）の形成・取出しの
作業中にこれら粉状材料が粉塵として舞い上がり作業環
境が悪化するという問題点があった。Furthermore, since powdery materials are sucked, there is a problem that these powdery materials fly up as dust during the work of forming and removing the heat insulating layer B), deteriorating the working environment.
本発明は、かかる問題点を解決するためになされたもの
で、断熱層の形成・取出しの作業性を向上し、作業環境
の改善が可能な誘導加熱装置を得ることを目的とする。The present invention has been made to solve these problems, and aims to provide an induction heating device that can improve the workability of forming and removing a heat insulating layer and improve the working environment.
本発明に係る誘導加熱装置は、断熱層の一部または全部
を、その材料を所定の形状に定形化したブロック、材の
積層物で構成したものである。In the induction heating device according to the present invention, a part or all of the heat insulating layer is formed of a block or a laminate of materials formed by shaping the material into a predetermined shape.
断熱層の形成・取出し作業、即ち築炉及び開炉作業は、
所定の工具で個々のブロック材を挟持し、所定位置に挿
入または取出すことにより行う。The work of forming and removing the heat insulating layer, that is, the construction and opening of the furnace,
This is done by holding the individual blocks with a predetermined tool and inserting or removing them at a predetermined position.
第１図はこの発明の一実施例を示す平面図であり、第２
図゛はその断面Ｚである９図において、（１）（２１＋
４］ （５）は従来のものと同一のものである。（６）
はこの発明になる断熱層で、そのうちｍは被加熱物（１
）と隣接して配置された粉状材料である炭素粉からなる
不定形の第１の断熱層、＋８］は誘導加熱コイル（２１
と第１の断熱層（′７）との間に配置された第２の断熱
層で、炭素粉を予め焼結等の手段で所定の形状、例えば
直方体状に定形化したブロック材（８ａ）とし、このブ
ロック材（８ａ〉を適宜積層して構成される。FIG. 1 is a plan view showing one embodiment of the present invention, and FIG.
In Figure 9, which shows the cross section Z, (1) (21+
4] (5) is the same as the conventional one. (6)
is the heat insulating layer according to this invention, of which m is the object to be heated (1
) is arranged adjacent to the induction heating coil (21
and the first heat insulating layer ('7), the block material (8a) is formed by shaping carbon powder into a predetermined shape, for example, a rectangular parallelepiped shape, by sintering or other means. The block material (8a) is laminated as appropriate.
上記のように構成された誘導加熱装置においては、築炉
は例えばつぎのようにして行われる。In the induction heating apparatus configured as described above, the furnace is constructed, for example, as follows.
先ず、誘導加熱コイル（２の内周炉床（４）上に、所定
の高さでブロック材（８ａ）を配置する。この場合、各
ブロック材（８ａ）は所定の工具で挟持し、これを誘導
加熱コイル（ａの上方から下降させ、所定位置に積層し
ていく。次に、誘導加熱コイル（２の内周に沿って、ブ
ロック材（８ａ）を所定の厚さとなるように績み重ね、
更にその内周下部に積層されたブロック材（８ａ）の上
に、第１の断熱Ｎ（７）となる炭素粉を所定の高さとな
るまで挿入する。次に、この第１の断熱層（力の上で誘
導加熱コイル（２）のほぼ中心の位置に被加熱物（１）
を配置し、更に被加熱物（１）の外周及び上面に所定の
厚さで炭素粉を挿入し、更にその上面にブロック材（８
ａ）を配置する。First, block materials (8a) are placed at a predetermined height on the inner hearth (4) of the induction heating coil (2).In this case, each block material (8a) is held between the predetermined tools and are lowered from above the induction heating coil (a) and stacked at a predetermined position.Next, the block material (8a) is laid along the inner circumference of the induction heating coil (2) to a predetermined thickness. Overlapping,
Further, carbon powder serving as the first heat insulation N (7) is inserted onto the block material (8a) stacked on the lower inner circumference thereof until it reaches a predetermined height. Next, place the object to be heated (1) approximately at the center of the induction heating coil (2) on this first heat insulating layer (force).
Further, carbon powder is inserted to a predetermined thickness on the outer periphery and upper surface of the object to be heated (1), and a block material (8
Place a).
なお、被加熱物（１）に隣接する部分に従来の炭素粉か
らなる不定形の第１の断熱フロを配置しているのは次の
理由による。即ち、第２の断熱層（８）に比較して第１
の断熱層（７）の方がその緻密度が高く、特に輻射熱を
遮蔽する効果が大きいので、これを被加熱物（１）に近
い内側に配置したものである。The reason why the irregularly shaped first heat insulating float made of conventional carbon powder is arranged in the area adjacent to the object to be heated (1) is as follows. That is, compared to the second heat insulating layer (8), the first heat insulating layer (8)
The heat insulating layer (7) has a higher density and is particularly effective in shielding radiant heat, so it is placed close to the heated object (1).
この場合でも、第２の断熱層（８）の部分の形成、取出
しは、各ブロックＮ（８ａ）を簡単な工具で挟持して順
次６１層また取出しする作業となるので、それだけ飛散
する粉塵量が減少し、がっ、取出し時も、第２の断熱層
（８）からその作業を開始すれば加熱終了後の冷却のた
めの時間をそれだけ短縮することができる。Even in this case, forming and taking out the second heat insulating layer (8) involves holding each block N (8a) with a simple tool and taking out the 61st layer one after another, so the amount of dust that will be scattered will increase accordingly. Also, when taking out, if the work is started from the second heat insulating layer (8), the time for cooling after heating can be reduced accordingly.
断熱層（６）をすべて第２の断熱／１（８１で構成すれ
ば、上記した環境改善及び冷却時間短縮の効果が一層非
著となるのは勿論である。If the heat insulating layer (6) is entirely composed of the second heat insulating layer (81), it goes without saying that the effects of improving the environment and shortening the cooling time described above will be even less significant.
なお、上記実施例では、各ブロック材（８ａ）をその接
合面を相互に一致させて積層しているが、この接合面を
交互にずらして積層するようにしてもよい。In the above embodiment, the blocks (8a) are stacked with their joint surfaces aligned with each other, but they may be stacked with their joint surfaces alternately shifted.
また、ブロック材（８ａ）は直方体状に限らず、立方体
状等種々の形状のものであってもよく、また、被加熱物
（１）や誘導加熱コイル（２の形状に合わせて一部に曲
面を有する形状のものを適宜他の形状のものと組合せて
使用するようにしてもよい。Further, the block material (8a) is not limited to a rectangular parallelepiped shape, but may have various shapes such as a cubic shape, and may be partially shaped according to the shape of the object to be heated (1) or the induction heating coil (2). A shape having a curved surface may be used in combination with a shape having another shape as appropriate.
本発明は、以上説明したように構成されているので、粉
塵の減少による作業環境の改善、築炉及び開炉作業の時
間、及び冷却時間の短縮等の効果がある。Since the present invention is configured as described above, it has effects such as improving the working environment by reducing dust, shortening the time for furnace construction and furnace opening work, and shortening the cooling time.
第１図はこの発明の一実施例による誘導加熱装置を示す
平面図５第２図はその断面図、第３図は従来の誘導加熱
装置の平面図、第４図はその断面図である。
図において、（１）は被加熱物、（２１は誘導加熱コイ
ル、（６）は断熱層、（７１は第１のｌ！ＩＴ熱層、（
８）は第２の断熱層、（８ａ）はブロック材である。
なお、各図中同一符号は同−又は相当部分を示す。
代理人 弁理士 大 岩 増 雄
第１図
第２図1 is a plan view showing an induction heating device according to an embodiment of the present invention; FIG. 2 is a sectional view thereof; FIG. 3 is a plan view of a conventional induction heating device; and FIG. 4 is a sectional view thereof. In the figure, (1) is the object to be heated, (21 is the induction heating coil, (6) is the heat insulation layer, (71 is the first l! IT thermal layer, (
8) is the second heat insulating layer, and (8a) is the block material. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent: Masuo Oiwa, Patent Attorney Figure 1 Figure 2
Claims (1)
熱装置において、上記断熱層の一部または全部を、その
材料を所定の形状に定形化したブロック材の積層物で構
成したことを特徴とする誘導加熱装置。In an induction heating device in which an object to be heated is surrounded by a heat insulating layer made of carbon, part or all of the heat insulating layer is composed of a laminate of blocks made of the material shaped into a predetermined shape. Features of induction heating equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13180889A JPH02309189A (en) | 1989-05-24 | 1989-05-24 | Induction heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13180889A JPH02309189A (en) | 1989-05-24 | 1989-05-24 | Induction heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02309189A true JPH02309189A (en) | 1990-12-25 |
Family
ID=15066594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13180889A Pending JPH02309189A (en) | 1989-05-24 | 1989-05-24 | Induction heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02309189A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528369A (en) * | 2013-09-29 | 2014-01-22 | 成都易态科技有限公司 | Material sintering device |
| CN103629927A (en) * | 2013-09-29 | 2014-03-12 | 成都易态科技有限公司 | Material sintering production system, material sintering production method and single-blank sintering device |
| JP2016014503A (en) * | 2014-07-02 | 2016-01-28 | 富士電機株式会社 | Heat treatment device |
-
1989
- 1989-05-24 JP JP13180889A patent/JPH02309189A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528369A (en) * | 2013-09-29 | 2014-01-22 | 成都易态科技有限公司 | Material sintering device |
| CN103629927A (en) * | 2013-09-29 | 2014-03-12 | 成都易态科技有限公司 | Material sintering production system, material sintering production method and single-blank sintering device |
| JP2016014503A (en) * | 2014-07-02 | 2016-01-28 | 富士電機株式会社 | Heat treatment device |
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