JPH0671421A - Method and device for preheating ladle for casting - Google Patents
Method and device for preheating ladle for castingInfo
- Publication number
- JPH0671421A JPH0671421A JP25410592A JP25410592A JPH0671421A JP H0671421 A JPH0671421 A JP H0671421A JP 25410592 A JP25410592 A JP 25410592A JP 25410592 A JP25410592 A JP 25410592A JP H0671421 A JPH0671421 A JP H0671421A
- Authority
- JP
- Japan
- Prior art keywords
- ladle
- burner
- pedestal
- casting
- blower
- 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
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005266 casting Methods 0.000 title claims description 18
- 239000000567 combustion gas Substances 0.000 claims abstract description 26
- 239000011819 refractory material Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 6
- 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 claims description 24
- 239000000295 fuel oil Substances 0.000 claims description 8
- 238000007664 blowing Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000003350 kerosene Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は鋳物の製造に使用する取
鍋の予熱方法およびその方法を実施するための装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preheating a ladle used in the production of castings and an apparatus for carrying out the method.
【０００２】[0002]
【従来の技術】鋳物の製造、すなわち鋳造工程において
溶銑を受取り鋳型に注入するために取鍋が用いられてお
り、取鍋に溶銑を受入れる前に予め取鍋を予熱し、溶銑
の温度低下を防ぎ、得られる鋳物の性質を均一にするこ
とが行われている。2. Description of the Related Art A ladle is used for receiving hot metal and pouring it into a casting mold in the production of castings, that is, in a casting process. Before the hot metal is received in the ladle, the ladle is preheated to reduce the temperature of the hot metal. It has been practiced to prevent and homogenize the properties of the resulting castings.
【０００３】従来、このような取鍋の予熱方法として、
底を有し上の開いている取鍋の開口を上向きとし、この
上を向いた取鍋の開口から取鍋の内壁に下向きにバーナ
ーで燃焼ガスを吹き付けて取鍋を予熱することが行われ
ている。しかしながら、このように上方からバーナーに
より燃焼ガスを下向きに吹き付けて取鍋を予熱する場合
には高温気体が開口から上方へ逃げるので熱効率が悪
く、十分均一に取鍋を加熱することができない。Conventionally, as a method of preheating such a ladle,
The opening of the ladle, which has a bottom and is open upwards, is directed upward, and the combustion gas is blown downward from the opening of the ladle facing upward to the inner wall of the ladle with a burner to preheat the ladle. ing. However, when the ladle is preheated by blowing the combustion gas downward from above with a burner, the high temperature gas escapes upward from the opening, so that the thermal efficiency is poor and the ladle cannot be heated sufficiently uniformly.
【０００４】このような問題点を解決するために、取鍋
の上に直接に、または実開平２−１２７３６３号公報に
記載されているようにスペーサーを介して蓋をし、蓋の
一方からバーナーにより下向きに燃焼ガスを吹き込み、
蓋の中央部に設けた排気口から上方に排気するような方
法が提案されている。しかしながら、このような方法で
は、バーナーが取付けられている蓋を取鍋の上に取付
け、それとともにバーナーに接続している配管を取り扱
うため操作性が悪く、また加熱された空気上昇にともな
い燃焼ガスは上方に移動する傾向があり、上方から燃焼
ガスを吹き込んでいるために十分に取鍋の底部まで達せ
ず取鍋が均一に加熱されないという問題がある。In order to solve such a problem, the burner is covered with a lid directly on the ladle or with a spacer as described in Japanese Utility Model Publication No. 2-127363. Blows combustion gas downward,
A method has been proposed in which air is exhausted upward through an exhaust port provided in the center of the lid. However, in such a method, since the lid to which the burner is attached is attached to the pot and the piping connected to the burner is handled together with it, the operability is poor, and the combustion gas accompanying the rise of the heated air is combusted. Has a problem that the ladle does not reach the bottom of the ladle sufficiently and the ladle is not uniformly heated because the combustion gas is blown from above.
【０００５】また、蓋が取鍋の開口にきちんと合うため
には、個々の取鍋に合わせて蓋を用意する必要があり、
種々の取鍋を用いる場合には、それに合わせて多数の蓋
を準備することになり、設備費が嵩み、また、作業性が
悪い。In order for the lid to fit the opening of the ladle properly, it is necessary to prepare a lid for each ladle,
When using various ladles, a large number of lids are prepared in accordance with the ladles, resulting in high equipment cost and poor workability.
【０００６】また、実公平３−９８８７号公報において
は、取鍋を横向きに置き、横に向いた開口に対して開口
部を閉鎖する蓋体を垂直に設け、この状態においてバー
ナーから横方向に取鍋内に燃焼ガスを吹き込むことが提
案されている。しかしながら、このように取鍋を横向き
に置くときには、蓋をする際の作業性が非常に悪く、取
扱いが容易でなく、また取鍋の壁面も横に置かれた状態
の取鍋の上方と下方で温度斑が生じ易いという問題があ
る。Further, in Japanese Utility Model Publication No. 3-9887, a ladle is placed sideways, and a lid for closing the opening is provided vertically with respect to the horizontally oriented opening. It has been proposed to blow combustion gas into the ladle. However, when the ladle is placed sideways like this, the workability of covering the lid is very poor, and it is not easy to handle, and the wall surface of the ladle is placed above and below the ladle. There is a problem that temperature spots tend to occur.
【０００７】[0007]
【発明が解決しようとする課題】上述のような問題点に
鑑みて本発明においては操作性がよく、取鍋の加熱が均
一に行える取鍋の加熱方法および装置を提案することを
目的とする。SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to propose a ladle heating method and apparatus which have good operability and can uniformly heat the ladle. .
【０００８】[0008]
【課題を解決するための手段】本発明においては上述し
た目的を鋳造用取鍋の底を上にし開口部を下向きとして
耐火材からなる受台上に載置し、該受台に設置したバー
ナーにより上向きに燃焼ガスを吹き出して前記取鍋を予
熱し、該取鍋の開口端部と前記受台との間隙から排気す
ることを特徴とする鋳造用取鍋の予熱の方法により達成
する。SUMMARY OF THE INVENTION In the present invention, the above-mentioned object is achieved by placing a casting ladle on a pedestal made of refractory material with the bottom facing up and the opening facing downward, and the burner installed on the cradle. The pre-heating method of the casting ladle is characterized in that the ladle is preheated by upwardly blowing the combustion gas to preheat the ladle and exhausted from the gap between the opening end of the ladle and the pedestal.
【０００９】また、本発明においては上述の方法を実施
する装置として、鋳造用取鍋、該取鍋の側壁部を回動可
能に支承する取鍋支持枠、耐火材からなり該取鍋支持枠
により開口が下を向くよう反転された取鍋を載置する受
台、燃料油供給源に連通され該受台に設置されて上向き
に燃焼ガスを噴出するバーナー、および上向きに空気を
供給して該バーナーでの燃料油を燃焼させるブロアから
なることを特徴とする鋳造用取鍋の予熱装置が提案され
る。In the present invention, as a device for carrying out the above method, a ladle for casting, a ladle support frame for rotatably supporting a side wall portion of the ladle, and a ladle support frame made of a refractory material. The pedestal on which the ladle whose opening is turned downward is placed by means of the burner, the burner which is connected to the fuel oil supply source and is installed on the pedestal to eject combustion gas upward, and supplies air upward. A preheating device for a ladle for casting is proposed, which comprises a blower for burning fuel oil in the burner.
【００１０】[0010]
【作用】本発明においては底付きの開口を有する取鍋
を、開口下向きとし、すなわち上下逆さまにした状態
で、耐火材からなる受台の上に置いて、受台に取付けた
バーナーから取鍋内に向けてに燃焼ガスを吹き付けて取
鍋を加熱する。余剰排気は取鍋の開口部の縁と受台の隙
間から外部に排気される。このため、上昇する性質を持
っている燃焼ガスと相俟って取鍋が均一に加熱される。
しかも取鍋を上下逆さまにして受台に置くだけでよく、
特別に無理な構造とする必要もない。また、受台の上に
取鍋を反転させて置くだけであるので、種々の大きさの
取鍋に対しても対応することができ、従来のような取鍋
に蓋をするようなタイプでは取鍋に合わせて種々の蓋を
用意する必要があるのに対し、本発明の方法によれば、
一つの装置により相当種類の大きさの取鍋に対応するこ
とができ、操作性も非常によく、設置コストも安価で済
む。本発明において、バーナーには灯油を供給すること
が好ましく、また、この灯油を供給されるバーナーに別
体に設けたブロアにより空気を吹き付けることにより充
分に完全燃焼させることにより排気公害の問題もなくす
ことができる。In the present invention, a ladle having an opening with a bottom is placed on a pedestal made of refractory material with the opening facing downward, that is, upside down, and the ladle is attached to the ladle from the pedestal. The ladle is heated by blowing combustion gas inward. Excessive exhaust is exhausted to the outside through the gap between the opening of the ladle and the pedestal. For this reason, the ladle is uniformly heated in combination with the combustion gas having a rising property.
Moreover, you just have to put the ladle upside down and place it on the cradle.
There is no need for a special structure. Moreover, since the ladle is simply placed upside down on the pedestal, it can be used for ladle of various sizes, and it is not the conventional type that covers the ladle. While it is necessary to prepare various lids according to the ladle, according to the method of the present invention,
A single device can be used for ladle of considerable size, it has excellent operability, and installation cost is low. In the present invention, it is preferable to supply kerosene to the burner, and the problem of exhaust pollution is eliminated by blowing air completely by a blower separately provided to the burner to which this kerosene is supplied to completely burn it. be able to.
【００１１】[0011]
【実施例】以下、添付図面を参照して本発明の実施例を
詳細に説明する。図１は本発明に係る予熱装置の全体構
成を示す断面図である。Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is a sectional view showing the overall configuration of a preheating device according to the present invention.
【００１２】取鍋１は通常の取鍋と同様椀形をしてお
り、底１ｂがあり、反対側が開口１ａとなっている。こ
の取鍋１の底１ｂと開口１ａの中間部に一対の支柱１ｃ
が取着され支柱１ｃは支持枠１ｄに回動可能に支承され
ている。支持枠１ｄはコの字形をしており、その上部に
はリング１ｅが取着されリフト（図示せず）などにより
引掛け取鍋１を持上げ移動できるようになっている。取
鍋１を支承している支柱１ｃは歯車１ｆを介してハンド
ル１ｇに連結されており、ハンドル１ｇを人手によって
回すことにより、取鍋１は支柱１ｃの回りに上下反転可
能である。この構成は従来の取鍋と同様である。The ladle 1 is bowl-shaped like a normal ladle, has a bottom 1b, and has an opening 1a on the opposite side. A pair of struts 1c is provided in the middle of the bottom 1b and the opening 1a of the ladle 1.
The column 1c is attached to the support frame 1d so as to be rotatable. The support frame 1d is U-shaped, and a ring 1e is attached to the upper part of the support frame 1d so that the hook ladle 1 can be lifted and moved by a lift (not shown) or the like. The support 1c supporting the ladle 1 is connected to the handle 1g via a gear 1f, and the ladle 1 can be turned upside down around the support 1c by manually turning the handle 1g. This structure is similar to the conventional ladle.
【００１３】予熱装置は本体架台２が箱形をしており、
図２に示すように本体架台２は上から見るとほぼ正方形
状となっており、その架台の上面には耐火材からなる受
台５がほぼ平板状に形成されている。受台５の中央部に
は燃焼ガスを吹き出すための穴が形成されバーナー口３
が設けられている。また、受台５の上面には図３に示す
ように半径方向に複数個（図示した実施例では４つ）の
凸部５ａが形成されており、この凸部５ａに取鍋１の開
口１ａの縁部が載るようになっており、取鍋１の開口１
ａの縁部と受台との間には図３において矢印で示すよう
な排気の通路が形成されるようになっている。なお、受
台５の上面に凸部を形成する代りに凹部を形成してもよ
い。In the preheating device, the main body mount 2 has a box shape,
As shown in FIG. 2, the main body stand 2 has a substantially square shape when viewed from above, and a cradle 5 made of a refractory material is formed in a substantially flat plate shape on the upper surface of the stand. A hole for blowing out combustion gas is formed in the center of the pedestal 5 and the burner port 3
Is provided. Further, as shown in FIG. 3, a plurality of (four in the illustrated embodiment) convex portions 5a are formed on the upper surface of the pedestal 5, and the openings 1a of the ladle 1 are formed in the convex portions 5a. The edge of the ladle is placed on the opening 1 of the ladle 1.
An exhaust passage as shown by an arrow in FIG. 3 is formed between the edge portion of a and the pedestal. Instead of forming the convex portion on the upper surface of the pedestal 5, a concave portion may be formed.
【００１４】受台５の中央部のバーナー口３にはバーナ
ー（図示せず）が取付けられる。バーナーそれ自体は周
知の構造であり、図１に示した灯油などの燃料油タンク
１２から電動トロコイドポンプ８を経て供給される燃料
を霧状として噴霧し燃焼させるものである。なお１１は
三方コックであり、電動トロコイドポンプ８から供給さ
れた余剰燃料を燃料油タンク１２へ戻入させるものであ
る。更に受台５のバーナー口３には図１および図２に示
すようにブロア７から空気供給されるようになってお
り、これによりバーナーで燃焼される燃料に十分な空気
が供給されるようになっている。A burner (not shown) is attached to the burner port 3 at the center of the pedestal 5. The burner itself has a well-known structure and atomizes and burns the fuel supplied from the fuel oil tank 12 such as kerosene shown in FIG. 1 through the electric trochoid pump 8 in the form of mist. Reference numeral 11 is a three-way cock that returns the surplus fuel supplied from the electric trochoid pump 8 to the fuel oil tank 12. Further, as shown in FIGS. 1 and 2, air is supplied from a blower 7 to the burner port 3 of the pedestal 5, so that sufficient air can be supplied to the fuel burned in the burner. Has become.
【００１５】ブロア７から供給される空気は、図４に示
すようにバーナー口３の下方において環状をした通路１
３内にその周囲に通路に対して所定（実施例においては
３０度）の角度をなした羽根１３ａ、１３ｂが上下に間
隔を開け、且つ周囲に等配的に（実施例においては１２
０°の角度をなして３枚）設けられており、この２段の
羽根１３ａ、１３ｂを通過する間にブロア７から供給さ
れる空気は羽根１３ａ、１３ｂにより螺旋流となり、バ
ーナーにおいて燃焼ガスと空気との混合を効率よく行
い、且つ螺旋状の流れとなった燃焼ガスが取鍋１内に向
けて噴出し、取鍋１を効率よく加熱するようになってい
る。上述の２段の羽根１３ａ、１３ｂを通過した空気は
図５に示すバーナー口３においてバーナーの燃焼ガスと
混合されるものであり、バーナー口３は図５に示すよう
に円筒状の管路の先端が球状３ａに絞られており、且
つ、その球状通路３ａの先端部が更に先細り形状に僅か
にテーパー状３ｃに絞られており、これによりブロア７
から供給される空気が滑らかに絞られ、且つバーナーか
らのガスとよく混合されるようになっている。The air supplied from the blower 7 has an annular passage 1 below the burner port 3 as shown in FIG.
The blades 13a and 13b, which form a predetermined angle (30 degrees in the embodiment) with respect to the passage in the periphery of the space 3, are vertically spaced and equidistantly distributed in the periphery (12 in the embodiment).
The air supplied from the blower 7 becomes a spiral flow by the blades 13a and 13b while passing through the blades 13a and 13b of the two stages, and becomes a combustion gas in the burner. The combustion gas is efficiently mixed with air, and the combustion gas in a spiral flow is ejected toward the inside of the ladle 1 to efficiently heat the ladle 1. The air that has passed through the above-described two-stage blades 13a and 13b is mixed with the combustion gas of the burner at the burner port 3 shown in FIG. 5, and the burner port 3 has a cylindrical duct as shown in FIG. The tip is narrowed to a spherical shape 3a, and the tip of the spherical passage 3a is further narrowed to a tapered shape to a slightly tapered shape 3c.
The air supplied from is smoothly squeezed and mixed well with the gas from the burner.
【００１６】上述したブロア７はインバーターを内蔵し
たモータにより駆動されており、ブロア７からの空気流
量は連続的に調整可能となっている。The blower 7 described above is driven by a motor incorporating an inverter, and the air flow rate from the blower 7 can be continuously adjusted.
【００１７】図１において９は制御盤であり、制御盤９
が設けられている箇所の受台５の側方には安全壁６を突
出させ、制御盤９へ排気が吹き付けないようにしてい
る。In FIG. 1, reference numeral 9 is a control panel, and the control panel 9
A safety wall 6 is made to project to the side of the pedestal 5 at the place where is provided so that the exhaust gas does not blow to the control panel 9.
【００１８】以上の構造からなる本発明の取鍋予熱装置
においては、反転ハンドル１ｇを人手で回して取鍋１を
図１に示すように取鍋１の開口１ａが下を向き、底１ｂ
が上を向くようにした状態でリフトにより取鍋１の開口
１ａを受台５の上に載るように置く。これにより取鍋１
の開口１ａの縁と受台５の間には、受台の凸部５ａとの
間に排気通路が形成されている。In the ladle preheating device of the present invention having the above structure, the reversing handle 1g is manually rotated to move the ladle 1 downward so that the opening 1a of the ladle 1 faces downward and the bottom 1b.
Is placed so that the opening 1a of the ladle 1 is placed on the pedestal 5 by a lift. This makes ladle 1
An exhaust passage is formed between the edge of the opening 1a and the pedestal 5 and the convex portion 5a of the pedestal.
【００１９】この状態で電動トロコイドポンプ８および
ブロア７を駆動し、燃料油タンク１２から灯油などの燃
料を供給し、バーナーの先端部において点火装置など周
知の方法により点火し、バーナーから供給される灯油を
燃焼させ、ブロア７から供給される空気により混合す
る。この際に上述のようにブロア７から供給される空気
は２段に形成された羽根１３ａ、１３ｂにより螺旋状の
流れとなり、これによりバーナーの燃焼ガスを空気と十
分混合し、十分混合された空気を螺旋流として取鍋１内
に吹き込む。取鍋１内に吹き込まれた燃焼ガスは取鍋１
の内壁面の各部に送られ、取鍋１を均一に加熱し、加熱
された空気は取鍋１の開口１ａと受台５との間の隙間か
ら外部に排気される。これにより取鍋１は上昇する空気
により取鍋の隅々まで充分に加熱される。In this state, the electric trochoid pump 8 and the blower 7 are driven, fuel such as kerosene is supplied from the fuel oil tank 12, and the tip of the burner is ignited by a well-known method such as an ignition device and supplied from the burner. Kerosene is burned and mixed by the air supplied from the blower 7. At this time, the air supplied from the blower 7 becomes a spiral flow by the blades 13a and 13b formed in two stages as described above, whereby the combustion gas of the burner is sufficiently mixed with the air and the sufficiently mixed air. Blow into the ladle 1 as a spiral flow. The combustion gas blown into the ladle 1 is the ladle 1.
Sent to each part of the inner wall surface of the ladle 1 to uniformly heat the ladle 1, and the heated air is exhausted to the outside through the gap between the opening 1a of the ladle 1 and the pedestal 5. As a result, the ladle 1 is sufficiently heated by the rising air to every corner of the ladle.
【００２０】取鍋１が十分加熱された状態でブロアおよ
び電動トロコイドポンプを停止し、リフトにより取鍋１
を持ち上げ、手動により取鍋の上下を逆さまにし、開口
１ａを上にし、この状態で溶銑を取鍋１内に受け、更に
リフトにより所定の鋳型に溶銑を供給する。While the ladle 1 is sufficiently heated, the blower and the electric trochoid pump are stopped, and the ladle 1 is lifted.
, And the ladle is turned upside down by hand, the opening 1a is turned up, the hot metal is received in the ladle 1 in this state, and the hot metal is supplied to a predetermined mold by the lift.
【００２１】[0021]
【発明の効果】本発明によれば取鍋の開口を下にして下
から燃焼ガスを吹き込むため、取鍋を効率よく、上昇傾
向にある燃焼ガスにより取鍋の隅々まで効率よく加熱す
ることができる。また、取鍋の開口を下にして受台に置
くために、取鍋は従来の取鍋をそのまま用いることがで
き、取鍋に特別な加工をする必要がなく、また、取鍋の
大きさが変わった場合にも受台と取鍋との特別の大きさ
の関係がないために、種々の取鍋に対して本発明に係る
予熱装置を用いることができ、従って鋳物工場など種々
の大きさの取鍋を用いる場合にも効率よく、本発明は使
用することができる。According to the present invention, since the combustion gas is blown from below with the opening of the ladle facing down, the ladle can be efficiently heated by the combustion gas having a rising tendency to every corner of the ladle. You can Also, since the ladle is placed on the cradle with the opening facing down, the ladle can use the conventional ladle as it is, no special processing is required for the ladle, and the size of the ladle is large. Since there is no special size relationship between the cradle and the ladle even when the temperature changes, the preheating device according to the present invention can be used for various ladles, and therefore various sizes such as foundries. The present invention can be used efficiently even when using a ladle.
【図１】本発明に係る予熱装置の全体を示す断面図であ
る。FIG. 1 is a cross-sectional view showing an entire preheating device according to the present invention.
【図２】図１のII−II矢視図である。FIG. 2 is a view taken along the line II-II in FIG.
【図３】図１のIII −III 矢視図である。3 is a view taken along the line III-III in FIG.
【図４】本発明に係るバーナー口に至る空気通路を示す
図であり、（ａ）は断面図、（ｂ）はＡ−Ａ矢視図、
（ｃ）はＢ−Ｂの矢視図である。4A and 4B are views showing an air passage leading to a burner port according to the present invention, in which FIG. 4A is a sectional view and FIG.
(C) is an arrow view of BB.
【図５】本発明のバーナー口の断面図である。FIG. 5 is a sectional view of the burner port of the present invention.
１ 取鍋 ２ 本体架台 ３ バーナー口 ５ 受台 ７ ブロア ８ 電動トロコイドポンプ １２ 燃料油タンク 1 Ladle 2 Main body stand 3 Burner port 5 Cradle 7 Blower 8 Electric trochoid pump 12 Fuel oil tank
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年３月１２日[Submission date] March 12, 1993
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２１[Correction target item name] 0021
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００２１】[0021]
【発明の効果】本発明によれば取鍋の開口を下にして下
から燃焼ガスを吹き込むため、取鍋を効率よく、上昇傾
向にある燃焼ガスにより取鍋の隅々まで効率よく加熱す
ることができる。また、取鍋の開口を下にして受台に置
くために、取鍋は従来の取鍋をそのまま用いることがで
き、取鍋に特別な加工をする必要がなく、また、取鍋の
大きさが変わった場合にも受台と取鍋との特別の大きさ
の関係がないために、種々の取鍋に対して本発明に係る
予熱装置を用いることができ、従って鋳物工場など種々
の大きさの取鍋を用いる場合にも効率よく、本発明は使
用することができる。According to the present invention, since the combustion gas is blown from below with the opening of the ladle facing down, the ladle can be efficiently heated by the combustion gas having a rising tendency to every corner of the ladle. You can Also, since the ladle is placed on the cradle with the opening facing down, the ladle can use the conventional ladle as it is, no special processing is required for the ladle, and the size of the ladle is large. Since there is no special size relationship between the cradle and the ladle even when the temperature changes, the preheating device according to the present invention can be used for various ladles, and therefore various sizes such as foundries. The present invention can be used efficiently even when using a ladle.
Claims (6)
として耐火材からなる受台上に載置し、該受台に設置し
たバーナーより上向きに燃焼ガスを吹き出して前記取鍋
を予熱し、該取鍋の開口端部と前記受台との間隙から排
気することを特徴とする鋳造用取鍋の予熱方法。1. A casting ladle is placed on a pedestal made of refractory material with the bottom facing up and the opening facing downward, and combustion gas is blown upward from a burner installed on the cradle to raise the ladle. A method for preheating a ladle for casting, which comprises preheating and exhausting gas from a gap between the opening end of the ladle and the pedestal.
ロアが設けられていることを特徴とする請求項１に記載
の鋳造用取鍋の予熱方法。2. The method for preheating a ladle for casting according to claim 1, further comprising a blower for supplying air together with the burner.
給されることを特徴とする請求項２に記載の鋳造用取鍋
の予熱方法。3. The method for preheating a ladle for casting according to claim 2, wherein air is supplied from the blower in a spiral flow.
に支承する取鍋支持枠、耐火材からなり該取鍋支持枠に
より開口が下を向くよう反転された取鍋を載置する受
台、燃料油供給源に連通され該受台に設置されて上向き
に燃焼ガスを噴出するバーナー、および上向きに空気を
供給して該バーナーでの燃料油を燃焼させるブロアから
なることを特徴とする鋳造用取鍋の予熱装置。4. A ladle for casting, a ladle support frame for rotatably supporting a side wall portion of the ladle, and a ladle made of a refractory material and having its opening turned downward by the ladle support frame. A pedestal to be placed, a burner that is connected to the fuel oil supply source and is installed on the pedestal to eject combustion gas upward, and a blower that supplies air upward to burn the fuel oil in the burner. Preheating device for ladle for casting.
射方向の排気通路が形成されることを特徴とする請求項
４に記載の鋳造用取鍋の予熱装置。5. The preheating device for a ladle for casting according to claim 4, wherein a radial exhaust passage is formed between an upper surface of the pedestal and a tip of the ladle.
筒状をしており、該円筒内に上下多板に羽根が装着され
ブロアから空気が螺旋流をなして噴出されるようになっ
ていることを特徴とする請求項４または５に記載の鋳造
用取鍋の予熱装置。6. A burner mounting port connected to the blower has a cylindrical shape, and blades are attached to upper and lower multiple plates in the cylinder so that air is ejected in a spiral flow from the blower. The preheating device for a ladle for casting according to claim 4 or 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25410592A JPH0671421A (en) | 1992-08-29 | 1992-08-29 | Method and device for preheating ladle for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25410592A JPH0671421A (en) | 1992-08-29 | 1992-08-29 | Method and device for preheating ladle for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0671421A true JPH0671421A (en) | 1994-03-15 |
Family
ID=17260297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25410592A Pending JPH0671421A (en) | 1992-08-29 | 1992-08-29 | Method and device for preheating ladle for casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0671421A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100436512B1 (en) * | 1999-08-26 | 2004-06-16 | 주식회사 포스코 | reverse type auto holding apparatus using ladle tilting unit |
| WO2008154595A3 (en) * | 2007-06-11 | 2009-01-29 | Nucor Corp | Method of preheating steelmaking ladles |
| KR101524844B1 (en) * | 2013-09-11 | 2015-06-24 | (주)신우베스틸 | Ladle preheating device |
| CN109304456A (en) * | 2018-11-13 | 2019-02-05 | 马鞍山市晨光高耐磨科技发展有限公司 | A kind of heating device of metal liquid container |
| KR20210051868A (en) * | 2019-10-31 | 2021-05-10 | 주식회사 포스코 | Heating apparatus and heating method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51126926A (en) * | 1975-04-30 | 1976-11-05 | Hitachi Ltd | Turn dish preheating apparatus for continuous casting installation |
| JPS52147504A (en) * | 1976-06-03 | 1977-12-08 | Nisshin Steel Co Ltd | Vessel drying and preheating device |
| JPS558756A (en) * | 1978-07-03 | 1980-01-22 | Tokyo Shibaura Electric Co | Tableware washing machine |
| JPS5864416A (en) * | 1981-10-13 | 1983-04-16 | Matsushita Electric Ind Co Ltd | gas burner |
| JPH039887U (en) * | 1989-06-14 | 1991-01-30 |
-
1992
- 1992-08-29 JP JP25410592A patent/JPH0671421A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51126926A (en) * | 1975-04-30 | 1976-11-05 | Hitachi Ltd | Turn dish preheating apparatus for continuous casting installation |
| JPS52147504A (en) * | 1976-06-03 | 1977-12-08 | Nisshin Steel Co Ltd | Vessel drying and preheating device |
| JPS558756A (en) * | 1978-07-03 | 1980-01-22 | Tokyo Shibaura Electric Co | Tableware washing machine |
| JPS5864416A (en) * | 1981-10-13 | 1983-04-16 | Matsushita Electric Ind Co Ltd | gas burner |
| JPH039887U (en) * | 1989-06-14 | 1991-01-30 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100436512B1 (en) * | 1999-08-26 | 2004-06-16 | 주식회사 포스코 | reverse type auto holding apparatus using ladle tilting unit |
| WO2008154595A3 (en) * | 2007-06-11 | 2009-01-29 | Nucor Corp | Method of preheating steelmaking ladles |
| US8142541B2 (en) | 2007-06-11 | 2012-03-27 | Nucor Corporation | Method of preheating steelmaking ladles |
| US8585961B2 (en) | 2007-06-11 | 2013-11-19 | Nucor Corporation | Preheaters for preheating steelmaking ladles |
| KR101524844B1 (en) * | 2013-09-11 | 2015-06-24 | (주)신우베스틸 | Ladle preheating device |
| CN109304456A (en) * | 2018-11-13 | 2019-02-05 | 马鞍山市晨光高耐磨科技发展有限公司 | A kind of heating device of metal liquid container |
| KR20210051868A (en) * | 2019-10-31 | 2021-05-10 | 주식회사 포스코 | Heating apparatus and heating method |
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