JPH04125196U - electric furnace lid - Google Patents
electric furnace lidInfo
- Publication number
- JPH04125196U JPH04125196U JP2962091U JP2962091U JPH04125196U JP H04125196 U JPH04125196 U JP H04125196U JP 2962091 U JP2962091 U JP 2962091U JP 2962091 U JP2962091 U JP 2962091U JP H04125196 U JPH04125196 U JP H04125196U
- Authority
- JP
- Japan
- Prior art keywords
- electric furnace
- peripheral frame
- furnace lid
- center
- block
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 17
- 239000011819 refractory material Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000004079 fireproofing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011823 monolithic refractory Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
(57)【要約】
【目的】 炉蓋の損傷し易い部分のみを交換できるよう
にする。
【構成】 炉蓋２０を、円環形の周枠部２２と、中心孔
２４に嵌合した中心ブロック２６とで構成し、この中心
ブロック２６に電極孔３０を貫設する。周枠部２２は扇
形ブロック２８の集合体とする。各ブロック２６、２８
の継目部分に不定形耐火物を介在させ取付施工を行な
う。
【効果】 電極孔３０の近傍が損傷した場合、中心ブロ
ック２６を交換できるので、電気炉の耐火物コストを低
減できる。周枠部２２は円環形であり、耐久性に優れ
る。
(57) [Summary] [Purpose] To make it possible to replace only the parts of the furnace lid that are easily damaged. [Structure] The furnace lid 20 is composed of an annular peripheral frame portion 22 and a center block 26 fitted in a center hole 24, and an electrode hole 30 is provided through the center block 26. The peripheral frame portion 22 is an aggregate of fan-shaped blocks 28. Each block 26, 28
Installation is carried out by interposing monolithic refractories at the joints. [Effect] If the vicinity of the electrode hole 30 is damaged, the center block 26 can be replaced, so the cost of refractories for the electric furnace can be reduced. The peripheral frame portion 22 is annular and has excellent durability.
Description
【０００１】0001
本考案は電気炉の炉蓋に関するものである。 The present invention relates to a lid for an electric furnace.
【０００２】0002
第３図に電気炉の概略的な縦断面図を示す。この電気炉１０は、炉本体１２と 炉蓋１４とで構成されており、炉蓋１４には電極を差し込むための電極孔１６が 蓋の厚み方向に貫設されている。第４図は従来の炉蓋１４の構造を示す斜視図、 第５図は同平面図である。従来の炉蓋１４は、複数枚（通常は３枚）の扇形のブ ロック１８を組み合わせて円形としたものであり、各ブロック１８の中心近傍に 前記電極孔１６が貫設されている。なお、３５は鉄皮、３７はキャスタブルであ る。 FIG. 3 shows a schematic longitudinal sectional view of the electric furnace. This electric furnace 10 has a furnace body 12 and The furnace lid 14 has an electrode hole 16 for inserting an electrode. It runs through the thickness of the lid. FIG. 4 is a perspective view showing the structure of a conventional furnace lid 14; FIG. 5 is a plan view of the same. The conventional furnace cover 14 has a plurality of (usually three) fan-shaped plates. The locks 18 are combined to form a circular shape, and near the center of each block 18 The electrode hole 16 is provided therethrough. In addition, 35 is iron skin and 37 is castable. Ru.
【０００３】0003
前記の如く、電極孔１６に電極を差し込んで電気炉１０の操業を行うのである が、この電極孔１６の内周面近傍部分に大きな熱負荷、熱応力が加えられること になり、炉蓋１４のその他の部分に比べ該電極孔１６の近傍部分が損傷し易い。 そして、この電極孔１６の近傍が損傷しただけで、ブロック１８の全体を交換す る必要があり、電気炉１０の全体としての耐火物コストを押し上げる原因となっ ていた。 As mentioned above, the electric furnace 10 is operated by inserting the electrode into the electrode hole 16. However, a large thermal load and thermal stress are applied to the vicinity of the inner peripheral surface of the electrode hole 16. Therefore, the portion near the electrode hole 16 is more likely to be damaged than the other portions of the furnace lid 14. Even if only the vicinity of this electrode hole 16 is damaged, the entire block 18 must be replaced. This causes the overall refractory cost of the electric furnace 10 to rise. was.
【０００４】0004
本考案の電気炉の炉蓋は、電極孔が厚さ方向に貫設された耐火物製の略円形の 電気炉炉蓋において、該炉蓋を、中心孔を有した環状の周枠部と、前記電極を有 し、該中心孔に嵌合された中心ブロックとで構成し、該周枠部を周方向に複数個 に分割した扇形ブロックの集合体とし、該扇形ブロックと中心ブロックとの継目 に不定形耐火物を介在させたことを特徴とするものである。 The lid of the electric furnace of this invention is a roughly circular shape made of refractory material with electrode holes extending through its thickness. In the electric furnace lid, the furnace lid includes an annular peripheral frame portion having a center hole and the electrode. and a center block fitted into the center hole, and the peripheral frame is arranged in a plurality of blocks in the circumferential direction. A collection of fan-shaped blocks divided into It is characterized by having a monolithic refractory interposed therein.
【０００５】 扇形ブロック同志の継目には、膨張吸収代として、人造石綿などの耐火性繊維 を挟むのが好ましい。[0005] At the joints between fan-shaped blocks, fire-resistant fibers such as artificial asbestos are used as expansion absorption material. It is preferable to sandwich.
【０００６】[0006]
かかる本考案の電気炉の炉蓋にあっては、電極孔の近傍部分が損傷した場合で も、該電極孔を有する中心ブロックだけを交換することができ、その他の周枠部 はそのまま使用を継続することができる。 In the electric furnace lid of the present invention, even if the area near the electrode hole is damaged, Also, only the center block with the electrode hole can be replaced, and the other peripheral frame parts can be replaced. can continue to be used as is.
【０００７】[0007]
以下図面を参照して実施例について説明する。 Examples will be described below with reference to the drawings.
【０００８】 第１図は本考案の実施例に係る電気炉の炉蓋の斜視図、第２図は同平面図であ る。[0008] Fig. 1 is a perspective view of the lid of an electric furnace according to an embodiment of the present invention, and Fig. 2 is a plan view thereof. Ru.
【０００９】 本実施例に係る炉蓋２０は、環状の周枠部２２と、この周枠部２２の中心孔２ ４に嵌合された中心ブロック２６とを備えている。この周枠部２２は、周方向に 複数個（本実施例では３個）に分割された扇形ブロック２８の集合体として構成 されている。前記中心ブロック２６には電極孔３０が炉蓋の厚さ方向に貫設され ている。尚、扇形ブロック２８同志の間には膨張吸収代として人造石綿等を挟み 、各扇形ブロック２８と中心ブロック２６との継目には施工時に、不定形耐火物 を介在させている。[0009] The furnace cover 20 according to this embodiment includes an annular peripheral frame portion 22 and a center hole 2 of the peripheral frame portion 22. 4 and a center block 26 fitted into the center block 26. This peripheral frame portion 22 is arranged in the circumferential direction. Constructed as a collection of fan-shaped blocks 28 divided into a plurality of pieces (three in this embodiment) has been done. An electrode hole 30 is provided through the center block 26 in the thickness direction of the furnace cover. ing. In addition, artificial asbestos or the like is sandwiched between the fan-shaped blocks 28 as expansion and absorption material. , a monolithic refractory is installed at the joint between each fan-shaped block 28 and the center block 26 during construction. is interposed.
【００１０】 このように構成された電気炉の炉蓋２０にあっては、電極孔３０の近傍部分が 損傷し易いのであるが、仮にこの電極孔３０の近傍部分が損傷した場合には、中 心ブロック２６だけを交換し、その他の扇形ブロック２８よりなる周枠部２２は そのまま使用を継続することができる。このため、電気炉の耐火物コストの低減 が図れる。尚、周枠部２２は扇形ブロック２８の集合体よりなり、全体として熱 膨張が均一であるため、耐久性に優れる。0010 In the furnace lid 20 of the electric furnace configured in this way, the portion near the electrode hole 30 is Although it is easy to damage, if the area near this electrode hole 30 is damaged, the center Only the core block 26 is replaced, and the peripheral frame 22 consisting of the other fan-shaped blocks 28 is replaced. You can continue using it as is. This reduces the cost of refractories for electric furnaces. can be achieved. Incidentally, the peripheral frame portion 22 is made up of an aggregate of fan-shaped blocks 28, and as a whole, the heat Excellent durability due to uniform expansion.
【００１１】 上記実施例では周枠部２２を周方向に３等分しているが、４等分などその他の 分割数としても良い。[0011] In the above embodiment, the peripheral frame portion 22 is divided into three equal parts in the circumferential direction, but other parts such as four equal parts can be used. It may also be the number of divisions.
【００１２】0012
以上の通り、本考案の電気炉の炉蓋は、損傷し易い中心ブロックのみを交換可 能としたものであり、電気炉全体としての耐火物コストの低減が可能である。ま た、炉蓋を構成する周枠部は、円環形状であり、熱膨張が均一であり、耐久性に 優れる。 As mentioned above, in the electric furnace lid of this invention, only the center block, which is easily damaged, can be replaced. This makes it possible to reduce the refractory cost for the electric furnace as a whole. Ma In addition, the peripheral frame that makes up the furnace lid has an annular shape, which allows for uniform thermal expansion and increased durability. Excellent.
【図１】本考案の実施例に係る炉蓋の斜視図である。FIG. 1 is a perspective view of a furnace lid according to an embodiment of the present invention.
【図２】実施例に係る炉蓋の平面図である。FIG. 2 is a plan view of the furnace cover according to the embodiment.
【図３】電気炉の縦断面図である。FIG. 3 is a longitudinal cross-sectional view of the electric furnace.
【図４】従来の炉蓋の斜視図である。FIG. 4 is a perspective view of a conventional furnace cover.
【図５】従来の炉蓋の平面図である。FIG. 5 is a plan view of a conventional furnace cover.
１０ 電気炉 １２ 炉本体 １４ 炉蓋 １６ 電極孔 １８ ブロック ２０ 炉蓋 ２２ 周枠部 ２４ 中心孔 ２６ 中心ブロック ２８ 扇形ブロック ３０ 電極孔 10 Electric furnace 12 Furnace body 14 Hearth cover 16 Electrode hole 18 blocks 20 Hearth cover 22 Peripheral frame part 24 Center hole 26 Center block 28 Fan-shaped block 30 Electrode hole
Claims (1)
の略円形の電気炉炉蓋において、該炉蓋を、中心孔を有
した環状の周枠部と、前記電極を有し、該中心孔に嵌合
された中心ブロックとで構成し、該周枠部を周方向に複
数個に分割した扇形ブロックの集合体とし、該扇形ブロ
ックと中心ブロックとの継目に不定形耐火物を介在させ
たことを特徴とする電気炉の炉蓋。1. A generally circular electric furnace lid made of refractory material with an electrode hole extending through its thickness, the furnace lid comprising an annular peripheral frame portion having a center hole and the electrode. and a center block fitted into the center hole, the peripheral frame part is divided into a plurality of fan-shaped blocks in the circumferential direction, and the joint between the fan-shaped block and the center block is made of a monolithic fireproofing material. An electric furnace lid characterized by having an object interposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2962091U JPH04125196U (en) | 1991-04-26 | 1991-04-26 | electric furnace lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2962091U JPH04125196U (en) | 1991-04-26 | 1991-04-26 | electric furnace lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04125196U true JPH04125196U (en) | 1992-11-16 |
Family
ID=31913445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2962091U Pending JPH04125196U (en) | 1991-04-26 | 1991-04-26 | electric furnace lid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04125196U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5537492B2 (en) * | 1976-08-10 | 1980-09-29 | ||
| JPS5989980A (en) * | 1983-10-03 | 1984-05-24 | 黒崎窯業株式会社 | Furnace cover of arc furnace for steel manufacture with induction current preventive mechanism |
-
1991
- 1991-04-26 JP JP2962091U patent/JPH04125196U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5537492B2 (en) * | 1976-08-10 | 1980-09-29 | ||
| JPS5989980A (en) * | 1983-10-03 | 1984-05-24 | 黒崎窯業株式会社 | Furnace cover of arc furnace for steel manufacture with induction current preventive mechanism |
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