JP3295010B2 - melting furnace - Google Patents
melting furnaceInfo
- Publication number
- JP3295010B2 JP3295010B2 JP35437496A JP35437496A JP3295010B2 JP 3295010 B2 JP3295010 B2 JP 3295010B2 JP 35437496 A JP35437496 A JP 35437496A JP 35437496 A JP35437496 A JP 35437496A JP 3295010 B2 JP3295010 B2 JP 3295010B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- melting furnace
- slag
- temperature
- cooling air
- 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
Landscapes
- Gasification And Melting Of Waste (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は溶解炉に関するもの
である。[0001] The present invention relates to a melting furnace.
【０００２】[0002]
【従来の技術】鋳鉄等を溶解する際に水平軸心廻りに回
転させる回転式の炉体を有する溶解炉では、スラグを炉
外へ排出する際には、一般に、該炉体を鉛直状としてい
た。2. Description of the Related Art In a melting furnace having a rotary furnace body that rotates around a horizontal axis when melting cast iron or the like, when the slag is discharged out of the furnace, the furnace body is generally set in a vertical shape. Was.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、炉体を
鉛直状とすれば全体の構造が極めて複雑で設備費も高く
なる。しかも、炉体を鉛直状とした際、上方から炉内の
熱が放出され熱エネルギーの損失が大となると共に、作
業環境も悪く、さらに、上下に大きなスペースを必要と
していた。However, if the furnace body is made vertical, the overall structure is extremely complicated and the equipment cost is high. In addition, when the furnace body is made vertical, heat in the furnace is released from above, resulting in a large loss of thermal energy, a poor working environment, and a large space vertically.
【０００４】そこで、本発明では、炉体を鉛直状にする
ことなく、水平状のまま溶融スラグを排出することがで
きて、上述の従来の問題点を解決することができる溶解
炉を提供することを目的とする。Accordingly, the present invention provides a melting furnace capable of discharging molten slag in a horizontal state without making the furnace body vertical, thereby solving the above-mentioned conventional problems. The purpose is to:
【０００５】[0005]
【課題を解決するための手段】本発明に係る溶解炉は、
水平状のまま出滓する溶解炉に於て、出滓口に向かって
内面が５°〜10°の傾斜角度で順次拡開するテーパ孔の
炉内孔部を形成する耐火材裏張が設けられた水平軸心廻
りに回転可能な炉体と、出滓の際に該炉体の炉内孔部内
を1000mmAq以上1500mmAq以下に加圧する加圧手段と、を
備え、さらに、上記炉内孔部の内面に沿ってテーパ孔の
最大径部位に上記傾斜角度よりやや大きい傾斜角度で上
記出滓口に連通する出滓路を形成したものである。The melting furnace according to the present invention comprises:
In the melting furnace where the slag is discharged horizontally ,
A furnace body rotatable around a horizontal axis provided with a refractory lining forming a furnace inner hole portion of a tapered hole whose inner surface sequentially expands at an inclination angle of 5 ° to 10 ° ; Pressurizing means for pressurizing the inside of the furnace inner hole of the furnace body to 1000 mmAq or more and 1500 mmAq or less , further comprising a tapered hole along the inner surface of the furnace inner hole.
Above the maximum diameter area with an inclination angle slightly larger than the above inclination angle
The slag path communicating with the slag port is formed .
【０００６】この際、炉体を、内筒と該内筒に外嵌され
る外筒とから形成すると共に、該内外筒間の隙間に冷却
用エアを供給するエア供給手段を備えたり、冷却用エア
の出口部において該冷却用エアの温度を測定する温度測
定手段と、該温度測定手段にて測定された温度に基づい
て内外筒間の隙間に供給される冷却用エアの温度を制御
する制御手段と、を備えたり、耐火材裏張を有する内筒
を外筒に対して挿脱自在としたりするのが好ましい。At this time, the furnace body is formed of an inner cylinder and an outer cylinder fitted to the inner cylinder, and air supply means for supplying cooling air to a gap between the inner and outer cylinders is provided. Temperature measuring means for measuring the temperature of the cooling air at the outlet of the cooling air, and controlling the temperature of the cooling air supplied to the gap between the inner and outer cylinders based on the temperature measured by the temperature measuring means. And a control means, or an inner cylinder having a refractory lining is preferably insertable into and removable from the outer cylinder.
【０００７】[0007]
【発明の実施の形態】図１と図２は本発明に係る溶解炉
を示し、この溶解炉は、水平軸心Ｌ廻りに回転可能に設
けられた炉体１と、出滓の際にこの炉体１内を所定の圧
力に加圧する加圧手段２（図３参照）と、を備える。1 and 2 show a melting furnace according to the present invention. The melting furnace has a furnace body 1 rotatably provided around a horizontal axis L, and a smelting furnace. Pressurizing means 2 (see FIG. 3) for pressurizing the inside of the furnace body 1 to a predetermined pressure.
【０００８】しかして、炉体１は、内筒３と該内筒３に
外嵌される外筒４とを備える。内筒３は、円筒状の筒本
体５と、該筒本体５の内面に黒鉛煉瓦等の煉瓦材８を介
して付設される耐火材裏張６と、からなり、この内筒３
と外筒４との間に隙間７が形成される。The furnace body 1 has an inner cylinder 3 and an outer cylinder 4 fitted to the inner cylinder 3. The inner cylinder 3 includes a cylindrical cylinder body 5 and a refractory lining 6 attached to the inner surface of the cylinder body 5 via a brick material 8 such as graphite brick.
A gap 7 is formed between the outer cylinder 4 and the outer cylinder 4.
【０００９】耐火材裏張６には、例えば、Al2O3 系の耐
火材が使用され、軸心方向両端部に開口部10ａ，10ｂを
有する炉内孔部10が形成され、一方の開口部10ａから上
述の加圧手段２からの加圧用エアがこの炉内孔部10に供
給され、他方の開口部10ｂが図示省略の酸素バーナー等
が取付けられるバーナー取付口となる。The refractory backing 6 is made of, for example, an Al 2 O 3 refractory material, and has a furnace inner hole 10 having openings 10 a and 10 b at both ends in the axial direction. The pressurizing air from the pressurizing means 2 is supplied to the furnace inner hole 10 from the portion 10a, and the other opening 10b serves as a burner mounting port to which an oxygen burner (not shown) is mounted.
【００１０】ところで、炉内孔部10は、出滓口11ａ側に
向かって順次拡開するテーパ孔とされる。即ち、このテ
ーパ孔とすることで溶融スラグの流出を容易としてい
る。この炉内孔部10の内面の傾斜角度θとしては、例え
ば、５°〜10°位とされる。また、出滓路11は、溶融ス
ラグが流出しやすいように、炉内孔部10の内面に沿って
該傾斜角度θよりやや大きい傾斜角度θ1 で形成され
る。なお、炉内孔部10の内面の傾斜角度θが５°より小
さければ、溶融スラグが出滓口11ａ側へ流れにくく、逆
に、炉内孔部10の内面の傾斜角度θが10°より大きけれ
ば、溶融中に炉内孔部10内において内部の材料が開口部
10ｂ側へ集まりすぎ効率良く攪拌させることができない
からである。また、耐火材裏張６には、出湯路12が設け
られ、この出湯路12と出滓路11とは軸心に対して対称位
置に設けられている。Incidentally, the furnace inner hole 10 is a tapered hole which gradually expands toward the slag port 11a. In other words, the tapered hole facilitates the outflow of the molten slag. The inclination angle θ of the inner surface of the furnace inner hole 10 is, for example, about 5 ° to 10 °. Further, Dekasuro 11, as molten slag tends to flow out along the inner surface of the furnace holes 10 are formed in slightly larger inclination angle theta 1 than the inclination angle theta. If the inclination angle θ of the inner surface of the furnace hole 10 is smaller than 5 °, the molten slag is less likely to flow toward the slag port 11a, and conversely, the inclination angle θ of the inner surface of the furnace hole 10 is greater than 10 °. If it is large, the material inside the furnace hole 10 will open during melting.
This is because they are too concentrated on the 10b side and cannot be efficiently stirred. A tapping path 12 is provided in the refractory backing 6, and the tapping path 12 and the tapping path 11 are provided at symmetrical positions with respect to the axis.
【００１１】しかして、内筒３と外筒４との間の隙間７
には、複数の放熱用フィン13…が設けられると共に、エ
ア供給手段９にて冷却用エアが供給される。即ち、隙間
７には、エア供給口14とエア排出口15が形成され、この
エア供給口14にエア供給手段９によってエアが供給さ
れ、エア排出口15からエアが排出され、この隙間７を冷
却用エアが流れる。Thus, the gap 7 between the inner cylinder 3 and the outer cylinder 4
Are provided with a plurality of radiating fins 13, and cooling air is supplied by air supply means 9. That is, an air supply port 14 and an air discharge port 15 are formed in the gap 7, air is supplied to the air supply port 14 by the air supply means 9, and air is discharged from the air discharge port 15. Cooling air flows.
【００１２】エア供給手段９としては、例えば、エア排
出口15からエアを吸引する方式とされ、図１に示すよう
に、排風機22を備える。また、エア排出口15、つまり、
出口部には、冷却用エアの温度を測定する温度測定手段
16（図３参照）が設けられ、この温度測定手段16にて測
定された温度が制御手段17（図３参照）に入力される。The air supply means 9 is, for example, of a type that sucks air from an air discharge port 15 and includes a blower 22 as shown in FIG. Also, the air outlet 15, that is,
Temperature measurement means for measuring the temperature of the cooling air at the outlet
16 (see FIG. 3) is provided, and the temperature measured by the temperature measuring means 16 is input to the control means 17 (see FIG. 3).
【００１３】即ち、温度測定手段16は、エア排出口15に
設けられる各種の温度計が使用され、制御手段17ではこ
の温度計による温度に基づいて隙間７に供給されるエア
のエア供給量をコントロールして耐火材裏張６の冷却を
効果的に行って、該耐火材裏張６の侵食を有効に防止し
ている。また、加圧手段２は、上記冷却用エアをインバ
ータ制御して高圧のエアを開口部10ａから供給するもの
であり、炉内を1000mmAq以上1500mmAq以下の高圧状態と
する。That is, as the temperature measuring means 16, various thermometers provided at the air discharge port 15 are used, and the control means 17 controls the amount of air supplied to the gap 7 based on the temperature of the thermometer. The erosion of the refractory lining 6 is effectively prevented by controlling the cooling of the refractory lining 6 effectively. The pressurizing means 2 controls the cooling air by an inverter to supply high-pressure air from the opening 10a, and sets the inside of the furnace to a high-pressure state of 1000 mmAq or more and 1500 mmAq or less.
【００１４】ところで、耐火材裏張６は、図２に示すよ
うに、複数個（図例では、４個であるが勿論この数は自
由に増減できる。）に分割されている。この場合、分割
片６ａには、連結用のリブ18，19（図６の（ニ）参照）
が設けられ、相隣位する分割片６ａ，６ａのリブ18，19
がボルト・ナット結合等にて連結されて筒状とされる。
なお、分割片６ａの端面20，21は夫々径方向に対して傾
斜している。これは、この分割面から湯洩れが生じない
ように、分割接触面積をできるだけ大きくする為であ
る。また、分割面を凹凸形状とするも好ましい。As shown in FIG. 2, the refractory lining 6 is divided into a plurality (in the illustrated example, four, but the number can be freely increased or decreased). In this case, connecting ribs 18 and 19 (see (d) in FIG. 6) are provided on the divided pieces 6a.
Are provided, and ribs 18 and 19 of adjacent divided pieces 6a and 6a are provided.
Are connected by bolts and nuts or the like to form a cylinder.
The end faces 20, 21 of the divided piece 6a are each inclined with respect to the radial direction. This is to increase the divided contact area as much as possible so that the molten metal does not leak from the divided surface. Further, it is also preferable that the divided surface has an uneven shape.
【００１５】しかして、この炉体１は、図示省略の支持
機構にて、水平軸心Ｌ廻りに回転自在に支持され、か
つ、流体圧シリンダやモータ等を備えた図示省略の駆動
機構にて、水平軸心Ｌ廻りに回転駆動される。The furnace body 1 is rotatably supported around a horizontal axis L by a support mechanism (not shown) and is driven by a drive mechanism (not shown) provided with a fluid pressure cylinder, a motor, and the like. , About the horizontal axis L.
【００１６】次に、上述の如く構成された溶解炉の溶解
と出湯・出滓の工程を図４を使用して説明する。まず、
図４の（イ）に示すように、開口部10ａから材料（例え
ば、鋳鉄や鋼屑等）を水平方向に沿って投入し、（この
場合、造滓剤等を投入するも好ましい。）この開口部10
ａを図示省略の蓋部材にて施蓋する。その後、図４の
（ロ）に示すように、開口部10ｂに図示省略の酸素バー
ナーを取付け、この酸素バーナーを燃焼させて、炉内孔
部10の材料を溶解させる。この際、炉体１をその軸心
（水平軸心Ｌ）廻りに回転させると共に、内筒３と外筒
４との間の隙間７には、エア供給手段９にて冷却用エア
が供給され、これによって耐火材裏張６を強制空冷して
該耐火材裏張６の侵食を防止している。Next, the steps of melting and tapping and tapping of the melting furnace configured as described above will be described with reference to FIG. First,
As shown in FIG. 4 (a), a material (for example, cast iron or steel scrap) is charged in the horizontal direction from the opening 10a (in this case, it is also preferable to charge a slag-making agent or the like). Opening 10
a is covered with a cover member not shown. Thereafter, as shown in FIG. 4 (b), an oxygen burner (not shown) is attached to the opening 10b, and the oxygen burner is burned to melt the material of the furnace bore 10. At this time, the furnace body 1 is rotated around its axis (horizontal axis L), and cooling air is supplied to the gap 7 between the inner cylinder 3 and the outer cylinder 4 by the air supply means 9. Thereby, the refractory material backing 6 is forcibly air-cooled to prevent the erosion of the refractory material backing 6.
【００１７】その後、さらに、図４の（ハ）に示すよう
に、図示省略の酸素ランスを付加して高温溶解を図る。
溶解終了後、図４の（ニ）に示すように、出湯路12から
出湯させ、次に、 180°反転させて図４の（ホ）に示す
ように、出滓路11から溶融スラグを出滓させる。この出
滓の際には、加圧手段２から炉内孔部10に高圧エアを供
給して該炉内孔部10内を1000mmAq〜1500mmAqに加圧され
る。Thereafter, as shown in FIG. 4C, an oxygen lance (not shown) is added to achieve high-temperature melting.
After completion of the melting, the molten slag is discharged from the tapping path 12 as shown in FIG. 4 (d), and then inverted by 180 ° to discharge the molten slag from the slag path 11 as shown in FIG. 4 (e). Let it scum. At the time of this slag removal, high-pressure air is supplied from the pressurizing means 2 to the furnace inner hole 10 to pressurize the inside of the furnace inner hole 10 to 1000 mmAq to 1500 mmAq.
【００１８】従って、炉内孔部10は、テーパ孔とされか
つ高圧状態とされるので、溶融スラグが急速に炉外に排
出される。即ち、炉体１を従来のように鉛直状にするこ
となく、確実に溶融スラグを排出することができる。な
お、炉内孔部10が1000mmAq未満では、炉内孔部10があま
り高圧状態とならず、溶融スラグの押出を図る効果がな
く、逆に、1500mmAqを越えれば、高圧になりすぎ、出滓
の際、危険である。また、この場合、酸素ランスで酸素
の燃焼熱を利用して、溶解時間を短縮して短時間の高温
化を行いフレキシブルなコントロールができるので、溶
解工程を確立すると共にエネルギーの低減を図ることが
可能である。Accordingly, since the furnace inner hole 10 is formed into a tapered hole and in a high pressure state, the molten slag is rapidly discharged out of the furnace. That is, the molten slag can be reliably discharged without making the furnace body 1 vertical as in the related art. When the furnace inner hole 10 is less than 1000 mmAq, the furnace inner hole 10 does not have a very high pressure state, and there is no effect of pushing out the molten slag. Is dangerous. Also, in this case, the melting time can be shortened by using the heat of combustion of oxygen in the oxygen lance, and the temperature can be raised in a short time to achieve flexible control, so that the melting step can be established and the energy can be reduced. It is possible.
【００１９】しかして、炉体１内は高温雰囲気であるた
めの溶湯及びスラグ等による化学的侵食と、原材料の回
転時の物理的損傷によって、耐火材が侵食され易い。そ
こで、上述の如く、耐火材裏張６を強制冷却することに
よって、侵食を防止している。しかしながら、侵食した
場合、この溶解炉では次のように補修する。However, the refractory material is easily eroded by chemical erosion due to the molten metal and slag due to the high temperature atmosphere in the furnace body 1 and physical damage during rotation of the raw material. Therefore, as described above, the erosion is prevented by forcibly cooling the refractory lining 6. However, if eroded, this melting furnace will repair it as follows.
【００２０】即ち、図５の（イ）に示すように、耐火材
裏張６に侵食部Ｓが形成された場合、図５の（ロ）に示
すように、内筒３を外筒４から引出し、図５の（ハ）に
示すように、補修成形した後、図５の（ニ）に示すよう
に、再びこの内筒３を外筒４に挿入する。That is, when the eroded portion S is formed in the refractory material backing 6 as shown in FIG. 5A, the inner cylinder 3 is moved from the outer cylinder 4 as shown in FIG. After being drawn out and repair-molded as shown in FIG. 5C, the inner cylinder 3 is inserted into the outer cylinder 4 again as shown in FIG.
【００２１】即ち、外筒４から取り出された内筒３の耐
火材裏張６を、図６の（イ）のように、分割片６ａ…に
分解して、その侵食部Ｓを図６の（ロ）のように補修
し、補修部Ｈを形成する。その後、図６の（ハ）のよう
に、加熱炉25でこの補修部Ｈを焼結して、補修された分
割片６ａを形成する。次に、補修された複数の分割片６
ａ…を、図６の（ニ）のように、組立て、この耐火材裏
張６を筒本体５に組付け、この内筒３を外筒４に挿入す
る。That is, the refractory material backing 6 of the inner cylinder 3 taken out of the outer cylinder 4 is disassembled into divided pieces 6a as shown in FIG. Repair is performed as shown in (b) to form a repaired portion H. Thereafter, as shown in FIG. 6C, the repaired portion H is sintered in the heating furnace 25 to form the repaired divided piece 6a. Next, the repaired divided pieces 6
are assembled as shown in FIG. 6 (d), the refractory lining 6 is assembled to the cylinder main body 5, and the inner cylinder 3 is inserted into the outer cylinder 4.
【００２２】このように、炉外で補修・焼結することは
作業性及び安全性に優れ、かつ、補修時期の短縮等がで
き、従来の炉内補修に比べて、省力化及び省エネルギー
化を図ることができる。なお、この溶解炉によれば、冷
却エアの温度を測定することができ、温度を測定するこ
とによって、耐火材の残存厚みを演算して補修のタイミ
ングを判定することも可能である。As described above, repairing and sintering outside the furnace is excellent in workability and safety, and also can shorten the repairing time. Thus, labor and energy savings are reduced as compared with the conventional furnace repair. Can be planned. According to this melting furnace, the temperature of the cooling air can be measured, and by measuring the temperature, it is also possible to calculate the remaining thickness of the refractory material and determine the timing of the repair.
【００２３】[0023]
【発明の効果】本発明は上述の如く構成されているの
で、次に記載する効果を奏する。Since the present invention is configured as described above, the following effects can be obtained.
【００２４】請求項１記載の溶解炉によれば、炉体１を
鉛直状とすることなく、溶融スラグを確実に流出させる
ことができ、複雑な構造とはならず、これによって、全
体の構造の簡略化を図ることができると共に、大型のピ
ットを省略でき、設備全体と付帯工事等の設備費の大幅
な低減を図ることができる。しかも、熱エネルギーの損
失を少なくすることができると共に、この溶解炉が配置
されるスペースを少なくすることができる。According to the melting furnace of the first aspect, the molten slag can be reliably discharged without making the furnace body 1 vertical, and the structure does not become complicated, whereby the overall structure is improved. Can be simplified, large-sized pits can be omitted, and the equipment cost for the entire equipment and the accompanying work can be significantly reduced. In addition, heat energy loss can be reduced, and the space in which the melting furnace is arranged can be reduced.
【００２５】請求項２記載の溶解炉によれば、耐火材裏
張６を強制空冷することができ、該耐火材裏張６の侵食
を有効に防止することができる。また、請求項３記載の
溶解炉によれば、常時安定して耐火材裏張６を強制空冷
することができ、より確実に耐火材裏張６の侵食を防止
することができる。さらに、請求項４記載の溶解炉によ
れば、耐火材裏張６を有する内筒３を取り出すことがで
き、これによって、炉外で裏張６の補修・焼結すること
ができ、作業性及び安全性に優れ、さらに、補修時期の
短縮等ができ、従来の炉内補修に比べて省力化及び省エ
ネルギー化を図ることができる。According to the melting furnace of the second aspect, the refractory lining 6 can be forcibly air-cooled, and the erosion of the refractory lining 6 can be effectively prevented. Further, according to the melting furnace of the third aspect, the refractory material lining 6 can be constantly and stably air-cooled, and the erosion of the refractory material lining 6 can be more reliably prevented. Furthermore, according to the melting furnace of the fourth aspect, the inner cylinder 3 having the refractory material lining 6 can be taken out, whereby the lining 6 can be repaired and sintered outside the furnace, and workability can be improved. In addition, it is excellent in safety, and furthermore, the repair time can be shortened, and labor and energy can be saved as compared with the conventional in-furnace repair.
【図１】本発明に係る溶解炉の要部断面正面図である。FIG. 1 is a sectional front view of a main part of a melting furnace according to the present invention.
【図２】その要部断面側面図である。FIG. 2 is a sectional side view of a main part thereof.
【図３】ブロック図である。FIG. 3 is a block diagram.
【図４】溶解から出滓までを示す工程図である。FIG. 4 is a process chart showing steps from dissolution to slag.
【図５】補修方法を示す工程図である。FIG. 5 is a process chart showing a repair method.
【図６】補修方法の具体的な工程図である。FIG. 6 is a specific process chart of the repair method.
１ 炉体 ２ 加圧手段 ３ 内筒 ４ 外筒 ６ 耐火材裏張 ７ 隙間 ９ エア供給手段 10 炉内孔部 11ａ 出滓口 16 温度測定手段 17 制御手段 Ｌ 水平軸心 DESCRIPTION OF SYMBOLS 1 Furnace body 2 Pressurizing means 3 Inner cylinder 4 Outer cylinder 6 Refractory material lining 7 Gap 9 Air supply means 10 Furnace inner hole 11a Sash outlet 16 Temperature measuring means 17 Control means L Horizontal axis
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｆ２７Ｄ 3/15 Ｆ２７Ｄ 3/15 Ｔ (58)調査した分野(Int.Cl.7，ＤＢ名) F27B 7/00 - 7/42 C21C 1/08 F23J 1/08 F27D 3/15 ──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. 7 identification code FI F27D 3/15 F27D 3/15 T (58) Investigated field (Int.Cl. 7 , DB name) F27B 7/00-7 / 42 C21C 1/08 F23J 1/08 F27D 3/15
Claims (4)
滓口11ａに向かって内面が５°〜10°の傾斜角度θで順
次拡開するテーパ孔の炉内孔部10を形成する耐火材裏張
６が設けられた水平軸心Ｌ廻りに回転可能な炉体１と、
出滓の際に該炉体１の炉内孔部10内を1000mmAq以上1500
mmAq以下に加圧する加圧手段２と、を備え、さらに、上
記炉内孔部10の内面に沿ってテーパ孔の最大径部位に上
記傾斜角度θよりやや大きい傾斜角度θ 1 で上記出滓口
11ａに連通する出滓路11を形成したことを特徴とする溶
解炉。 1. A melting furnace in which slag is discharged in a horizontal state, wherein a furnace having a tapered hole whose inner surface is gradually expanded at an inclination angle θ of 5 ° to 10 ° toward a slag port 11a. A furnace body 1 rotatable about a horizontal axis L provided with a refractory lining 6 forming an inner hole portion 10;
At the time of slag removal, the inside of the furnace hole 10 of the furnace body 1 should be at least
and pressurizing means 2 for pressurizing the mmAq or less, with a further, upper
Along the inner surface of the furnace inner hole 10 and up to the maximum diameter of the tapered hole.
Serial inclination angle slightly larger inclination angle theta 1 with the tapping port than theta
A melting furnace, wherein a slag passage 11 communicating with 11a is formed .
る外筒４とから形成すると共に、該内外筒３，４間の隙
間７に冷却用エアを供給するエア供給手段９を備えた請
求項１記載の溶解炉。2. An air supply for forming a furnace body 1 from an inner cylinder 3 and an outer cylinder 4 fitted to the inner cylinder 3, and supplying cooling air to a gap 7 between the inner and outer cylinders 3. The melting furnace according to claim 1, further comprising a supply unit.
アの温度を測定する温度測定手段16と、該温度測定手段
16にて測定された温度に基づいて内外筒３，４間の隙間
７に供給される冷却用エアの温度を制御する制御手段17
と、を備えた請求項２記載の溶解炉。3. A temperature measuring means for measuring a temperature of the cooling air at an outlet of the cooling air, and the temperature measuring means.
Control means 17 for controlling the temperature of the cooling air supplied to the gap 7 between the inner and outer cylinders 3 and 4 based on the temperature measured at 16
The melting furnace according to claim 2, comprising:
対して挿脱自在とした請求項２記載の溶解炉。4. The melting furnace according to claim 2, wherein the inner cylinder having the refractory backing is detachably inserted into the outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35437496A JP3295010B2 (en) | 1996-12-18 | 1996-12-18 | melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35437496A JP3295010B2 (en) | 1996-12-18 | 1996-12-18 | melting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10185439A JPH10185439A (en) | 1998-07-14 |
| JP3295010B2 true JP3295010B2 (en) | 2002-06-24 |
Family
ID=18437132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35437496A Expired - Lifetime JP3295010B2 (en) | 1996-12-18 | 1996-12-18 | melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3295010B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1180996A (en) * | 1997-09-08 | 1999-03-26 | Nissan Motor Co Ltd | Electrode coating method |
-
1996
- 1996-12-18 JP JP35437496A patent/JP3295010B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10185439A (en) | 1998-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3849587A (en) | Cooling devices for protecting refractory linings of furnaces | |
| EP1120618B1 (en) | A method of relining a vessel and vessel suitable therefore | |
| US6059028A (en) | Continuously operating liquid-cooled panel | |
| JP3295010B2 (en) | melting furnace | |
| US8142711B2 (en) | Forged copper burner enclosure | |
| US2426568A (en) | Furnace door | |
| JP3007264B2 (en) | Blast furnace taphole brick structure | |
| JP2001059685A (en) | Ceiling cover for ladle preheater | |
| JP3546843B2 (en) | Arc electric furnace for steelmaking | |
| JP2820248B2 (en) | melting furnace | |
| JP2005009803A (en) | Metal handling device | |
| CN220907581U (en) | Silicon heating method magnesium smelting facility | |
| JP3261574B2 (en) | Non-consumable water cooling lance | |
| JPH04227465A (en) | Method of repairing hot-air long-time cupola furnace | |
| JP2000146452A (en) | Fixed smelting furnace | |
| JP3001535U (en) | melting furnace | |
| US2577736A (en) | Water-cooled furnace door | |
| JPH0520433Y2 (en) | ||
| KR200223852Y1 (en) | Heating device for converter refractory | |
| CN117051240A (en) | Silicon heating method magnesium smelting facility | |
| JPH0675746B2 (en) | Water-cooled ceiling lid for ladle | |
| JP2882289B2 (en) | Heat insulation device for blast furnace hot stove repair | |
| JPH1081909A (en) | Method for drying furnace body of blast furnace and device therefor | |
| SU1629325A1 (en) | Method of reconditioning of lining during steelmaking converter campaign | |
| JPH01139990A (en) | Lining spray repair method of sealed type kiln, etc. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090405 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100405 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110405 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130405 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140405 Year of fee payment: 12 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |