JPS6137543B2 - - Google Patents
Info
- Publication number
- JPS6137543B2 JPS6137543B2 JP56191129A JP19112981A JPS6137543B2 JP S6137543 B2 JPS6137543 B2 JP S6137543B2 JP 56191129 A JP56191129 A JP 56191129A JP 19112981 A JP19112981 A JP 19112981A JP S6137543 B2 JPS6137543 B2 JP S6137543B2
- Authority
- JP
- Japan
- Prior art keywords
- hood
- lid
- furnace
- furnace body
- opening
- 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
Links
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 230000006698 induction Effects 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 239000000779 smoke Substances 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Landscapes
- Crucibles And Fluidized-Bed Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
【発明の詳細な説明】
この発明は、誘導炉、詳しくは、集塵兼保温用
のフード付誘導炉の集塵保温装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an induction furnace, and more particularly to a dust collection and heat retention device for an induction furnace with a hood for both dust collection and heat retention.
従来、たとえば、るつぼ形誘導炉等において、
金属の溶解時に発生する媒煙を、当該誘導炉の周
辺に放散することなく排除するようにした誘導炉
の集塵保温装置として、第１図に示すように、枠
体１内に構築されたアルミナ等の耐火材にて成る
るつぼ形の炉体２の上端面２ｂの上方に、所定の
間隙を形成するように、一端が閉塞されかつ内周
面に吸気口３が設けられた、筒状でかつ環状のフ
ード４を設置するとともに、上記フード４の上方
に、所定の間隙を形成するように、該フード４の
口径より大きい蓋体５を固定して構成したものが
知られている。 Conventionally, for example, in a crucible induction furnace,
As shown in Fig. 1, this device is constructed in a frame 1 as a dust collection and heat retention device for an induction furnace that eliminates the smoke generated when melting metal without dispersing it around the induction furnace. A cylindrical shape having one end closed and an intake port 3 provided on the inner peripheral surface so as to form a predetermined gap above the upper end surface 2b of the crucible-shaped furnace body 2 made of a refractory material such as alumina. It is known that a large annular hood 4 is installed and a lid 5 larger than the diameter of the hood 4 is fixed above the hood 4 so as to form a predetermined gap.
この種の集塵保温装置においては、金属等の溶
解をおこなう際に、フード４の他端側からモータ
駆動式のフアン（図示しない）を駆動して、該フ
ード４の排気をおこなうことにより、第１図中、
矢印Ｃで示すように、当該誘導炉の外部からフー
ド４の吸気口３に空気を吸込ませるとともに、該
吸気口３への気流にともなつて、第１図中、矢印
Ｄで示すように炉体２内に発生した媒煙を該フー
ド４に吸込ませるようにして、上記媒煙を排除す
る一方、金属の溶解後、誘導コイル７をオンにし
て、炉体２内の溶湯６を保温する際に、上述した
と同様にして、フード４の他端側から排気をおこ
なつて、空気を該フード４内に吸込ませて、フー
ド４および蓋体５を空冷し、それ等が熱変形して
破損しないようにしている。 In this type of dust collection and heat retention device, when melting metal etc., a motor-driven fan (not shown) is driven from the other end of the hood 4 to exhaust air from the hood 4. In Figure 1,
As shown by the arrow C, air is sucked into the inlet 3 of the hood 4 from outside the induction furnace, and as the air flows into the inlet 3, the furnace is drawn in as shown by the arrow D in FIG. The smoke generated in the furnace body 2 is sucked into the hood 4 to eliminate the smoke, and after the metal is melted, the induction coil 7 is turned on to keep the molten metal 6 inside the furnace body 2 warm. At this time, in the same manner as described above, exhaust is performed from the other end of the hood 4, and air is sucked into the hood 4 to air-cool the hood 4 and the lid 5, so that they are not thermally deformed. to prevent damage.
しかしながら、上述の従来の集塵保温装置にお
いて、溶湯６の保温をおこなう際、フード４に吸
込まれる空気とともに該溶湯６の熱量が無駄に逸
散するため、それだけ余分に保温用に電力を消費
し、かつ、フード４および蓋体５が上述の溶湯６
からの放熱により加熱される分、余分に空冷用に
電力を消費することとなる不具合があつた。 However, in the above-mentioned conventional dust collection and heat retention device, when the molten metal 6 is kept warm, the heat of the molten metal 6 is wastefully dissipated together with the air sucked into the hood 4, so that extra power is consumed for keeping it warm. In addition, the hood 4 and the lid body 5 are made of the above-mentioned molten metal 6.
There was a problem in that the extra power was consumed for air cooling due to the heat dissipated from the air conditioner.
この発明は、上記の不具合を解消するためにな
されたもので、誘導炉の炉体の上方に設置した環
状の吸煙用のフードの内側の空間に、上下動自在
にした蓋体を設け、炉体内で溶湯を保温する際
に、上記蓋体により炉体の上方の開口を閉塞して
該炉体を閉塞状態にし、該フードに吸気作用をお
こなわせて、フードおよび蓋体を空冷するととも
に、溶湯の熱が無駄にフードに逸散するのを防止
し、フードおよび蓋体の熱変形による破損および
劣化を防止でき、かつ、溶湯を保温するに要する
電力を有効に節約できるとともに、溶解時には、
蓋体を上方に移動して、フードに吸気作用をおこ
なわせて、フードおよび蓋体を空冷するととも
に、炉内に発生する媒煙を炉外に漏洩することな
く確実にフード内に吸込ませることができる誘導
炉の集塵保温装置を提供することを目的とする。 This invention was made in order to eliminate the above-mentioned problems, and a lid body that is movable up and down is provided in the space inside the annular smoke suction hood installed above the furnace body of an induction furnace. When keeping the molten metal warm inside the body, the lid closes the upper opening of the furnace body to put the furnace in a closed state, and the hood performs an air intake action to air-cool the hood and the lid, It prevents the heat of the molten metal from dissipating wastefully into the hood, prevents damage and deterioration of the hood and lid due to thermal deformation, and effectively saves the power required to keep the molten metal warm.
To air-cool the hood and the lid by moving the lid upward and causing the hood to take in air, and to ensure that the smoke generated inside the furnace is sucked into the hood without leaking outside the furnace. The purpose of the present invention is to provide a dust collection and heat retention device for an induction furnace that can perform the following steps.
以下に、この発明の一実施例を、第２図乃至第
４図とともに説明する。 An embodiment of the present invention will be described below with reference to FIGS. 2 to 4.
なお、図面において、第１図の誘導炉の集塵保
温装置における構成部分と等価な部分は、同一符
号を付して説明を省略する。 In the drawings, parts equivalent to the constituent parts in the dust collecting and heat-retaining device for the induction furnace shown in FIG.
図面において、１０は、炉体のライニング保護
用の保護板で、この保護板１０には、枠体１内に
耐火材を用いてるつぼ形に形成された炉体２の円
形の開口２ａとほぼ同じ大きさの貫通孔１０ａが
穿設されている。そして、この保護板１０は、上
記炉体２の上端面２ｂに固着されている。 In the drawing, 10 is a protection plate for protecting the lining of the furnace body, and this protection plate 10 has a circular opening 2a of the furnace body 2 formed in the shape of a crucible made of refractory material in the frame body 1, and approximately Through holes 10a of the same size are bored. This protection plate 10 is fixed to the upper end surface 2b of the furnace body 2.
上記保護板１０の上方に、該保護板１０から所
定の小さい間隔をもつて離間するように、台座１
１を介して、炉体２の出湯部２ｃに相当する部分
を切欠した略円環状でかつ断面形状が方形の筒状
のフード１２が設置されている。 A pedestal 1 is placed above the protection plate 10 and spaced apart from the protection plate 10 by a predetermined small distance.
A cylindrical hood 12 having a substantially annular shape with a portion corresponding to the tapping portion 2c of the furnace body 2 cut out and having a rectangular cross section is installed through the hood 12.
上記フード１２の内周面１２ａは、上記炉体２
の開口２ａの縁を包囲しており、かつ、該フード
１２の底面１２ｂと上記保護板１０の上面とで、
所定の小さい間隙G1を形成している。また、こ
のフード１２の一方の端部１２ｃは閉塞されると
ともに、他方の端部１２ｄは、図示しないモータ
により駆動される吸気用のフアン（図示しない）
が取り付けられたダクト１３に接続されている。
さらに、このフード１２の内周面１２ａには、径
方向に適宜ピツチで複数の吸気口１４が穿設され
ている。この構成により、上記フアンを駆動する
と、フード１２の各吸気口１４からフード内部に
空気が流れ込み、第３図中、矢印Ａで示すように
気流が発生するようになつている。この気流は、
図示しないフイルタを通して、大気中に排出され
る。 The inner peripheral surface 12a of the hood 12 is connected to the furnace body 2.
surrounds the edge of the opening 2a, and the bottom surface 12b of the hood 12 and the top surface of the protection plate 10,
A predetermined small gap G1 is formed. Further, one end 12c of the hood 12 is closed, and the other end 12d is connected to an intake fan (not shown) driven by a motor (not shown).
is connected to the duct 13 to which the duct 13 is attached.
Furthermore, a plurality of intake ports 14 are bored in the inner circumferential surface 12a of the hood 12 at appropriate pitches in the radial direction. With this configuration, when the fan is driven, air flows into the hood from each intake port 14 of the hood 12, generating an airflow as shown by arrow A in FIG. This airflow is
It is discharged into the atmosphere through a filter (not shown).
１６は、上記炉体２を密閉状態にするための円
板状の蓋体で、この蓋体１６は、鉄板製の枠体１
７を、耐火材１８で内張りして成るものである。
この蓋体１６の直径は、上記フード１２の内側の
空間１５を挿通可能な大きさとされ、第２図に示
すように、炉体２の開口２ａを閉じた状態時に、
この蓋体１６の周面１６ａと上記フード１２の内
周面１２ａとで、所定の小さい間隙C2を形成す
るようになつている。そして、この蓋体１６は、
上記フード１２の内側の空間１５で、詳細に後述
する駆動装置２０により、水平に保持された状態
で上・下動自在に設置されている。 16 is a disc-shaped lid for keeping the furnace body 2 in a sealed state, and this lid 16 is attached to the frame 1 made of iron plate.
7 is lined with a refractory material 18.
The diameter of the lid 16 is large enough to allow it to pass through the space 15 inside the hood 12, and as shown in FIG. 2, when the opening 2a of the furnace body 2 is closed,
A predetermined small gap C2 is formed between the circumferential surface 16a of the lid 16 and the inner circumferential surface 12a of the hood 12. And, this lid body 16 is
It is installed in a space 15 inside the hood 12 so as to be movable up and down while being held horizontally by a drive device 20 which will be described in detail later.
なお、上述の各吸気口１４は、フード１２の閉
塞端部１２ｃ側から排気側の端部１２ｄに向つ
て、その開口幅が、漸次狭く、即ち、開口面積が
漸次小さくなるようにしている。このようにし
て、上述した排気側のフアン駆動された際、フー
ド１２の全ての吸気口１４で、フード１２内への
空気の吸込みをおこなわせることができる。 In addition, each of the above-mentioned intake ports 14 has its opening width gradually narrowed, that is, its opening area gradually decreases from the closed end 12c side of the hood 12 toward the exhaust side end 12d. In this way, when the above-described fan on the exhaust side is driven, air can be sucked into the hood 12 through all the intake ports 14 of the hood 12.
上記駆動装置２０は、上記蓋体１６の上面の中
心位置に装着されたブラケツト１９に、枢支軸２
１を介してアーム２２の一端部２２ａを係合する
とともに、該アーム２２の他端部２２ｂ、枢支軸
２３を介して、垂設された油圧シリンダ２４の上
端部２４ａに係合し、かつ、上記アーム２２の長
手軸方向の適宜位置で、該アーム２２を枢支部材
２５で支承して構成したものである。この駆動装
置２０において公知の方法で、図示しない油圧制
御装置をオンすることにより、油圧シリンダ２４
を短縮又は伸長させて、枢支部材２５を支点とし
てアーム２２を、第２図中、矢印Ｂ又はＢ又は
B′で示す方向に駆動し、このアーム２２の運動し
たがつて、蓋体１６は、それ自体の重力にもとづ
き水平に保持された状態で、上記フード１２の内
側の空間１５内で、上方又は下方に移動するよう
になつている。 The drive device 20 has a pivot shaft 2 mounted on a bracket 19 mounted at the center of the upper surface of the lid 16.
1, and engages with the upper end 24a of the vertically installed hydraulic cylinder 24 via the other end 22b of the arm 22 and the pivot shaft 23, and , the arm 22 is supported by a pivot member 25 at an appropriate position in the longitudinal axis direction of the arm 22. In this drive device 20, by turning on a hydraulic control device (not shown) in a known manner, the hydraulic cylinder 24
By shortening or expanding the arm 22 with the pivot member 25 as a fulcrum, the arrow B or B or
As a result of the movement of the arm 22, the lid 16 is held horizontally by its own gravity in the space 15 inside the hood 12, upward or downward. It's starting to move downwards.
上記の構成のこの発明に係る誘導炉の集塵保温
装置において、炉体２内に金属ビレツト（図示し
ない）を投入し、かつ、誘導コイル７に公知の方
法で給電して、金属ビレツトを溶解する際には、
駆動装置２０における図示しない油圧制御装置に
より、油圧シリンダ２４を引込ませて、アーム２
２をＢ方向に駆動し、蓋体１６を、たとえば、第
４図に示すように、少なくとも、フード１２の各
吸気口１４の位置よりも高く、かつ、該蓋体１６
とフード１２とで小さな間隙G2を形成し得る位
置まで上昇させる。その後、ダクト１３に設けら
れたフアン（図示しない）をオンすると、蓋体１
６とフード１２と炉体２とで囲まれた空間１５
に、第４図中、矢印Ｄで示すように、フード１２
と保護板１０とで形成された間隙G1および上記
間隙G2を通して空気が吸込まれ、この空気は、
炉体２内で金属ビレツトが溶解する際に生じた媒
煙（図示しない）とともに、フード１２の各吸気
口１４を介して該フード１２内に吸込まれる。こ
のフード１内に吸込まれた媒煙は、公知の方法
で、ダクト１３の排気側に設けられたフイルタを
通して大気中に排出される。 In the dust collection and heat retention device for an induction furnace according to the present invention having the above configuration, a metal billet (not shown) is put into the furnace body 2, and electricity is supplied to the induction coil 7 by a known method to melt the metal billet. When doing so,
A hydraulic control device (not shown) in the drive device 20 causes the hydraulic cylinder 24 to retract, and the arm 2
2 in direction B, and the lid 16 is moved to a position that is at least higher than the position of each intake port 14 of the hood 12 and as shown in FIG.
and hood 12 to form a small gap G2 . After that, when a fan (not shown) provided in the duct 13 is turned on, the lid body 1
6, a space 15 surrounded by the hood 12, and the furnace body 2
As shown by arrow D in FIG. 4, the hood 12
Air is sucked in through the gap G1 formed between and the protective plate 10 and the gap G2 , and this air is
Together with the smoke (not shown) generated when the metal billet is melted in the furnace body 2, it is sucked into the hood 12 through each intake port 14 of the hood 12. The smoke sucked into the hood 1 is discharged into the atmosphere through a filter provided on the exhaust side of the duct 13 in a known manner.
このようにして、炉体２内で金属の溶解時に発
生した媒煙は、当該誘導炉の外部に漏洩すること
なく確実に排除される。 In this way, the smoke generated during melting of metal within the furnace body 2 is reliably removed without leaking to the outside of the induction furnace.
つぎに、上記炉体２内での金属ビレツトの溶解
が終了し、その溶湯６を所定の温度に保温する際
には、上記駆動装置２０の油圧シリンダ２４を上
方に伸長させ、アーム２２をB′方向に駆動して、
蓋体１６を下方に移動させ、第２図に示すよう
に、該蓋体１６を保護板１０の上面と接触させ
て、炉体２の開口２ａを閉じて該炉体２を密閉状
態にする。また、上記フアンの駆動は溶解後も続
けておこない、上述したと同様にして、間隙G1
とG2を介して、第２図中、矢印Ｃで示すよう
に、フード１２の各吸気口１４に空気を吸込ませ
る。 Next, when the melting of the metal billet in the furnace body 2 is completed and the molten metal 6 is to be kept at a predetermined temperature, the hydraulic cylinder 24 of the drive device 20 is extended upward, and the arm 22 is moved to the B position. ’ direction,
The lid 16 is moved downward, and as shown in FIG. 2, the lid 16 is brought into contact with the upper surface of the protection plate 10, and the opening 2a of the furnace body 2 is closed to bring the furnace body 2 into a sealed state. . Further, the driving of the fan described above is continued even after melting, and the gap G 1 is adjusted in the same manner as described above.
and G2 , air is sucked into each intake port 14 of the hood 12 as shown by arrow C in FIG.
上述のごとく、炉体２を密閉状態にすることに
より、炉体２内の溶湯６の熱の炉体外への逸散を
有効に抑制でき、当該溶湯６を所定の温度に保温
するに要する誘導コイルに供給する電力を節約す
ることができる。 As mentioned above, by keeping the furnace body 2 in a sealed state, it is possible to effectively suppress the dissipation of the heat of the molten metal 6 inside the furnace body 2 to the outside of the furnace body, and to reduce the induction required to keep the molten metal 6 at a predetermined temperature. The power supplied to the coil can be saved.
また、蓋体１６を利用して、フード１２内に当
該導炉の外部から空気を流入させることにより、
フード１２および蓋体１６を空冷することがで
き、フード１２および蓋体１６が熱的に歪んで破
損するのを有効に防止でき、それだけ、耐用年数
を高めることができる。さらには、上述の炉体２
からの熱の逸散を有効に抑止することと相俟つ
て、空冷用の空気の流速、即ち、上記フアンを駆
動するに要する電力を有効に低減することがで
き、当該導炉の運転に要する電力を有効に節約す
ることができる。 Furthermore, by using the lid body 16 to allow air to flow into the hood 12 from outside the induction furnace,
The hood 12 and the lid 16 can be air-cooled, which can effectively prevent the hood 12 and the lid 16 from being thermally distorted and damaged, thereby increasing their service life. Furthermore, the above-mentioned furnace body 2
In addition to effectively suppressing the dissipation of heat from the furnace, it is possible to effectively reduce the flow rate of air for cooling, that is, the electric power required to drive the fan, and reduce the amount of power required to operate the blast furnace. Power can be effectively saved.
上述の構成の誘導炉の集塵保温装置において、
炉容5ToN，定格電力容量550KWHの誘導炉を運
転して消費電力を測定したところ、第１図の従来
形式のものと比べて、溶湯の保温に関して
1.3KWH／Ｔ，フード（フアン駆動用のモータ
等）の運転に関して27.5KWH／Ｔ，合計1.3＋
27.5＝28.8KWH／Ｔ、即ち、（28.8/550）×100≒
5.3（％）もの消費電力を低減することができ
た。 In the induction furnace dust collection and heat retention device configured as described above,
When we measured the power consumption by operating an induction furnace with a furnace capacity of 5 ToN and a rated power capacity of 550 KWH, we found that it was significantly better at keeping the molten metal warm compared to the conventional type shown in Figure 1.
1.3KWH/T, 27.5KWH/T for the operation of the hood (fan drive motor, etc.), total 1.3+
27.5=28.8KWH/T, that is, (28.8/550)×100≒
We were able to reduce power consumption by 5.3%.
以上に詳述したように、この発明によれば、誘
導炉において、蓋の周囲にフードを設け、その蓋
は炉の上部開口を閉塞できるように設ける一方、
溶解時には蓋をフードの吸気口より上方に持ち上
げ、保温時には蓋を炉の上部開口を閉塞するよう
に位置させる蓋移動手段を設けたので溶解時に炉
から生じる煤煙を効率よく上記吸気口からフード
に吸入して炉内と周辺を清浄に保ち、一方溶湯の
保温時には蓋で炉の上記開口を閉塞するので炉内
の熱がこの開口を通して炉外へ逃げるのを防ぎ、
電力損失を低減することができるという利点を有
する。 As detailed above, according to the present invention, in an induction furnace, a hood is provided around the lid, and the lid is provided so as to close the upper opening of the furnace;
A lid moving means is provided that lifts the lid above the hood's intake port during melting, and positions the lid so as to close the upper opening of the furnace during heat retention, so that soot and smoke generated from the furnace during melting can be efficiently transferred from the intake port to the hood. It inhales to keep the inside and surroundings of the furnace clean, and when keeping the molten metal warm, the lid closes the opening of the furnace, preventing the heat inside the furnace from escaping to the outside of the furnace through this opening.
This has the advantage that power loss can be reduced.
第１図は、従来の誘導炉の集塵保温装置の縦断
面図、第２図は、この発明の一実施例の誘導炉の
集塵保温装置の縦断面図、第３図は、第２図の装
置の吸煙動作状態時の態様を示す図である。
２……炉体、２ａ……開口、２ｂ……上端面、
６……溶湯、７……誘導コイル、１０……ライニ
ング保護板、１０ａ……貫通孔、１２……フー
ド、１２ａ……フードの内周面、１２ｂ……フー
ドの底面、１２ｃ……フードの閉塞側の端部、１
２ｄ……フードの排気側の端部、１３……排気用
のダクト、１４……吸気口、１５……フードの内
側の空間、１６……蓋体、１６ａ……蓋体の周
面、２０……蓋体移動用の駆動装置、G1，G2…
…間隙。
FIG. 1 is a vertical sectional view of a conventional dust collection and heat retention device for an induction furnace, FIG. 2 is a vertical sectional view of a dust collection and heat retention device for an induction furnace according to an embodiment of the present invention, and FIG. FIG. 3 is a diagram showing an aspect of the device shown in the figure when it is in a smoke sucking operation state. 2...furnace body, 2a...opening, 2b...upper end surface,
6... Molten metal, 7... Induction coil, 10... Lining protection plate, 10a... Through hole, 12... Hood, 12a... Inner peripheral surface of hood, 12b... Bottom surface of hood, 12c... of hood Closed end, 1
2d...Exhaust side end of the hood, 13...Exhaust duct, 14...Intake port, 15...Space inside the hood, 16...Lid, 16a...Surrounding surface of the lid, 20 ... Drive device for moving the lid body, G 1 , G 2 ...
…gap.
Claims (1)
に、該上端面に沿つて設置され、該炉体の開口を
包囲するようにした略環状の中空で、内周面に吸
気口が設けられた筒状のフードと、このフードに
接続される排気手段と、 前記フードの内側の空間で上下動自在に設置さ
れ、上記炉体の開口を開閉する蓋体と、 炉体内で金属を溶解する際に、上記蓋体を前記
吸気口よりも上方に適宜に離間させる一方、炉体
内に溶湯を保温する際には該炉体の開口を閉塞す
るように蓋体を位置させる蓋体移動手段とを備え
たことを特徴とする誘導炉の集塵保温装置。[Scope of Claims] 1. A generally annular hollow and inner space that is installed above and along the upper end surface of a furnace body having an opening provided above, and that surrounds the opening of the furnace body. A cylindrical hood with an air inlet on its circumferential surface; an exhaust means connected to the hood; and a lid that is movable up and down in a space inside the hood and opens and closes the opening of the furnace body. , When melting metal in the furnace body, the lid body is appropriately spaced above the intake port, while when keeping the temperature of the molten metal in the furnace body, the lid body is placed so as to close the opening of the furnace body. A dust collection and heat retention device for an induction furnace, characterized in that it is equipped with a lid moving means for positioning the lid body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19112981A JPS5892790A (en) | 1981-11-25 | 1981-11-25 | Dust collecting heat insulating device for induction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19112981A JPS5892790A (en) | 1981-11-25 | 1981-11-25 | Dust collecting heat insulating device for induction furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5892790A JPS5892790A (en) | 1983-06-02 |
| JPS6137543B2 true JPS6137543B2 (en) | 1986-08-25 |
Family
ID=16269350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19112981A Granted JPS5892790A (en) | 1981-11-25 | 1981-11-25 | Dust collecting heat insulating device for induction furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5892790A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62208159A (en) * | 1986-03-10 | 1987-09-12 | Hitachi Ltd | Constitutional information management system for computer system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012202671A (en) * | 2011-03-28 | 2012-10-22 | Jx Nippon Mining & Metals Corp | Gas treatment apparatus for melting furnace, and gas treatment method for melting furnace |
| JP6297015B2 (en) * | 2015-09-28 | 2018-03-20 | アイシン高丘株式会社 | Dissolving material supply device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5265106A (en) * | 1975-11-26 | 1977-05-30 | Sony Corp | Electrolytic cell |
| JPS5513680U (en) * | 1978-07-13 | 1980-01-28 |
-
1981
- 1981-11-25 JP JP19112981A patent/JPS5892790A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5265106A (en) * | 1975-11-26 | 1977-05-30 | Sony Corp | Electrolytic cell |
| JPS5513680U (en) * | 1978-07-13 | 1980-01-28 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62208159A (en) * | 1986-03-10 | 1987-09-12 | Hitachi Ltd | Constitutional information management system for computer system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5892790A (en) | 1983-06-02 |
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