JPH0584564A - Pump for molten metal - Google Patents
Pump for molten metalInfo
- Publication number
- JPH0584564A JPH0584564A JP27453891A JP27453891A JPH0584564A JP H0584564 A JPH0584564 A JP H0584564A JP 27453891 A JP27453891 A JP 27453891A JP 27453891 A JP27453891 A JP 27453891A JP H0584564 A JPH0584564 A JP H0584564A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- pipe
- discharging
- tube
- pump
- 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.)
- Granted
Links
Landscapes
- Jet Pumps And Other Pumps (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、減圧及び加圧により
金属溶湯を溶解炉から鋳型へ円滑に移送することを目的
とした金属溶湯ポンプに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molten metal pump for smoothly transferring molten metal from a melting furnace to a mold by depressurizing and pressurizing.
【０００２】[0002]
【従来の技術】従来、金属溶湯は、溶鉱炉から溶湯を取
鍋に取り、取鍋を傾けて鋳造型に注ぎ込み、又は炉の溶
湯取出口の栓を抜いて溶湯を落下させて鋳造型に注入す
る（特公平２−８２３７号）などの手段をとっている。2. Description of the Related Art Conventionally, molten metal is taken from a blast furnace into a ladle, tilted the ladle and poured into a casting mold, or the molten metal outlet of the furnace is pulled out to drop the molten metal into the casting mold. Yes (Japanese Patent Publication No. 2-8237).
【０００３】[0003]
【発明により解決すべき課題】前記従来の方法は、何れ
も人力を主としているので、作業者は苛酷な条件下で重
労働を強いられる問題点があり、その上、危険を伴う作
業であった。また、溶湯の一部が空気に触れるが、その
酸化防止をすることは至難であった。Since the above-mentioned conventional methods mainly use human power, there is a problem that the worker is forced to work hard under severe conditions, and moreover, it is a dangerous work. Further, although a part of the molten metal comes into contact with air, it was extremely difficult to prevent its oxidation.
【０００４】また、溶湯ポンプを使用する場合に、その
吐出管先端には、空気が出入することになり、酸化のお
それがあった。Further, when a molten metal pump is used, air comes in and out at the tip of the discharge pipe, which may cause oxidation.
【０００５】[0005]
【課題を解決する為の手段】然るにこの発明は、吐出管
の先端にＵ字管を連結することにより吐出終了時の金属
溶湯レベルを常時一定にすると共に、密閉留槽へ給排手
段を設けることにより、前記従来の問題点を解決したの
である。According to the present invention, however, a U-shaped pipe is connected to the tip of the discharge pipe so that the level of the molten metal at the end of discharge is always constant, and a supply / discharge means is provided in the closed dip tank. As a result, the above-mentioned conventional problems are solved.
【０００６】即ちこの発明は、溶湯ポンプの吐出管の先
端部に、Ｕ字管を縦設したことを特徴とする金属溶湯ポ
ンプである。That is, the present invention is a metal melt pump characterized in that a U-shaped pipe is vertically provided at the tip of the discharge pipe of the melt pump.
【０００７】また他の発明は、下端を溶解炉の下部に開
口する吸入管の上端を密閉留槽の上部に連結し、前記密
閉留槽の下部に吐出管の下端を連結し、前記吐出管の上
端を縦設したＵ字管の一端に連結し、前記Ｕ字管の他端
を成形機の鋳型に連結し、前記密閉留槽に排気手段と、
不活性ガスの給排手段を連結すると共に、前記吐出管の
上端と、Ｕ字管との連結部に不活性ガスの給排手段を連
結したことを特徴とする金属溶湯ポンプである。前記に
おけるＵ字管の左右両端は同一レベルとしたものであ
る。また、排気手段は真空ポンプとその吸気管とし、給
排手段は給排管、開閉弁及び給排気ポンプを結合したも
のである。In another aspect of the invention, the upper end of a suction pipe having a lower end opened to the lower part of the melting furnace is connected to the upper part of the closed distillation tank, and the lower end of the discharge pipe is connected to the lower part of the closed distillation tank. The upper end of the U-shaped pipe is connected to one end of the U-shaped pipe, the other end of the U-shaped pipe is connected to the mold of the molding machine, and the closed distillation tank is provided with an exhaust means.
In the metal melt pump, an inert gas supply / discharge means is connected, and an inert gas supply / discharge means is connected to a connecting portion between the upper end of the discharge pipe and the U-shaped pipe. The left and right ends of the U-shaped tube in the above are at the same level. The exhaust means is a vacuum pump and its intake pipe, and the supply / discharge means is a combination of a supply / discharge pipe, an opening / closing valve and a supply / exhaust pump.
【０００８】前記における溶湯ポンプの具体的構造には
限定されないので、公知の各種ポンプを用いることがで
きる。次に、不活性ガスとしては、窒素ガス、アルゴン
ガスなどがある。前記における密閉留槽へ塩素ガスを注
入し、バブリングすれば、溶湯中の水素ガスを可及的に
除去し、良好な金属溶湯とすることにより、製品の品質
を向上することができる。Since the specific structure of the above-mentioned molten metal pump is not limited, various known pumps can be used. Next, as the inert gas, there are nitrogen gas, argon gas and the like. By injecting chlorine gas into the closed distilling tank described above and bubbling, hydrogen gas in the molten metal is removed as much as possible, and the quality of the product can be improved by forming a good molten metal.
【０００９】また、密閉留槽を有するポンプにあって
は、これを複数台（２〜３台）併列使用することにより
吐出状態を平均化することができる。この発明のポンプ
は、例えば炉壁へ埋設することにより、保温、加熱を容
易にすると共に、設置場所を特設する必要がない。Further, in the case of a pump having a closed distilling tank, the discharge state can be averaged by using a plurality of pumps (2 to 3) in parallel. By embedding the pump of the present invention in the furnace wall, for example, it is possible to easily maintain heat and heat, and it is not necessary to provide a special installation site.
【００１０】[0010]
【作用】この発明は、ポンプの吐出管の先端部にＵ字管
を縦設したので、金属溶湯の注出を中止した場合に、吐
出管端に溶湯栓を形成し、空気の侵入が防止される。According to the present invention, since the U-shaped pipe is vertically provided at the tip of the discharge pipe of the pump, when the pouring of the molten metal is stopped, a molten metal plug is formed at the end of the discharge pipe to prevent air from entering. To be done.
【００１１】また、不活性ガスの給排により、金属溶湯
の注出が全自動化できる。従って、遠隔操作できる。Further, the pouring of the molten metal can be fully automated by supplying and discharging the inert gas. Therefore, it can be operated remotely.
【００１２】[0012]
【実施例】金属溶解炉１９中に吸入管１の先端を挿入
し、該吸入管１の先端を密閉留槽２の上部に連結し、前
記密閉留槽２の下部に、吐出管３の下端を連結し、前記
吐出管３の上端を縦設したＵ字管４の一端に連結し、前
記Ｕ字管４の他端を成形機の鋳型５に連結し、前記密閉
留槽２に吸引管６と給排気管７とを連結し、前記吐出管
３とＵ字管４との連結部に給排気管８を連結したもので
ある。EXAMPLE A tip of a suction pipe 1 is inserted into a metal melting furnace 19, a tip of the suction pipe 1 is connected to an upper part of a closed distillation tank 2, and a lower end of a discharge pipe 3 is attached to a lower part of the closed distillation tank 2. And the upper end of the discharge pipe 3 is connected to one end of a vertically arranged U-shaped pipe 4, the other end of the U-shaped pipe 4 is connected to a mold 5 of a molding machine, and a suction pipe is attached to the closed distilling tank 2. 6 is connected to the supply / exhaust pipe 7, and the supply / exhaust pipe 8 is connected to the connecting portion between the discharge pipe 3 and the U-shaped pipe 4.
【００１３】次に、このポンプについて動作を説明す
る。Next, the operation of this pump will be described.
【００１４】図１において、吸引管６から矢示９のよう
に吸引すると、密閉留槽２内が減圧されるので、金属溶
解炉内の金属溶湯１０が吸入管１を介して吸い上げられ
て、密閉留槽２内に入り、充填される。この場合に、金
属溶湯の一部１０ａは、前記Ｕ字管４内へ充填されてい
る。次に、吸気を中止しバルブ２１を閉じ、バルブ２０
を開き、給排気管７から窒素ガスを矢示１１のように圧
入すると、密閉留槽２内の金属溶湯１０は矢示１２のよ
うに吐出管３内を押し上げられる。この場合にバルブ２
２を開くと、吐出管３の上部に入っている不活性ガス
は、給排気管８から矢示１３のように排出される。そこ
で、溶湯１０は溶湯１０ａを押してＵ字管４を矢示１５
のように上昇し、ついで、鋳型５内に注入される。所定
量の溶湯を注入して、窒素ガスの圧入を中止すると、図
３のように密閉留槽２の下部、Ｕ字管４内及び吸入管１
の下部に溶湯１０、１０ａ、１０ｂが夫々溜っている。
前記において鋳型５の下部面と、Ｕ字管４の湯面レベル
とがほぼ一致させておけば、Ｕ字管４の開放端から空気
が入り込む余地はない。In FIG. 1, when suction is carried out from the suction pipe 6 as indicated by the arrow 9, the pressure inside the closed distilling tank 2 is reduced, so that the metal melt 10 in the metal melting furnace is sucked up through the suction pipe 1, It enters into the closed distillation tank 2 and is filled. In this case, a part of the molten metal 10 a is filled in the U-shaped tube 4. Next, the intake is stopped, the valve 21 is closed, and the valve 20
And the nitrogen gas is press-fitted from the supply / exhaust pipe 7 as indicated by the arrow 11, the molten metal 10 in the closed distillation tank 2 is pushed up in the discharge pipe 3 as indicated by the arrow 12. Valve 2 in this case
When 2 is opened, the inert gas contained in the upper portion of the discharge pipe 3 is discharged from the supply / exhaust pipe 8 as indicated by arrow 13. Then, the molten metal 10 is pushed by pressing the molten metal 10a, and the U-shaped tube 4 is indicated by the arrow 15
And then injected into the mold 5. When a predetermined amount of molten metal is injected and nitrogen gas pressure is stopped, as shown in FIG.
Molten metal 10, 10a and 10b are respectively accumulated in the lower part of the.
If the lower surface of the mold 5 and the molten metal surface level of the U-shaped tube 4 are substantially matched with each other, there is no room for air to enter from the open end of the U-shaped tube 4.
【００１５】次に、真空ポンプ（図示してない）を作動
して吸引管６から矢示９のように吸引すると、密閉留槽
２内が減圧されるので、溶湯が吸入管１を介して矢示１
４のように吸い上げられる。そこでバルブ２２を開く
と、吐出管３内の溶湯は矢示１６のように下降し、吐出
管３の上部には給排気管８から不活性ガスが矢示１７の
ように流入し、図１の状態になる。そこで、窒素ガスを
圧入すると、前記操作となる。これを繰り返すことによ
って、溶湯を間欠的に移送する。前記におけるバルブ２
２は開放のままでもよい。Next, when a vacuum pump (not shown) is actuated to suck from the suction pipe 6 as indicated by arrow 9, the pressure inside the closed distilling tank 2 is reduced, so that the molten metal passes through the suction pipe 1. Arrow 1
It is sucked up like 4. Then, when the valve 22 is opened, the molten metal in the discharge pipe 3 descends as shown by the arrow 16, and an inert gas flows into the upper portion of the discharge pipe 3 from the supply / exhaust pipe 8 as shown by the arrow 17, and FIG. It becomes the state of. Then, when nitrogen gas is pressed in, the above operation is performed. By repeating this, the molten metal is intermittently transferred. Valve 2 in the above
2 may be left open.
【００１６】前記実施例は、密閉留槽２を有するポンプ
について説明したが、他の金属溶湯ポンプであっても、
吐出管へＵ字管を接続することによって、金属溶湯栓を
生成し、外気の侵入を防止することができる。In the above embodiment, the pump having the closed distilling tank 2 is explained, but other metal melt pumps can be used.
By connecting the U-shaped pipe to the discharge pipe, it is possible to generate a molten metal plug and prevent the invasion of outside air.
【００１７】前記実施例におけるポンプ等（Ｕ字管を含
む）は、例えば炉体壁に埋設し、又は一部露出部があれ
ば、これに加温手段を付加することによって、溶湯状態
を保持ることができる。また、吸入管の先端を炉１９内
の凹入部１８に挿入させておけば、炉内の溶湯をほぼ全
量取り出すことができる。The pump or the like (including the U-shaped tube) in the above-mentioned embodiment is maintained in the molten state by, for example, being buried in the wall of the furnace body or if a partially exposed portion is provided with a heating means. You can Further, if the tip of the suction pipe is inserted into the recessed portion 18 in the furnace 19, almost all of the molten metal in the furnace can be taken out.
【００１８】[0018]
【発明の効果】この発明は、吐出管端にＵ字管を連設し
たので、溶湯を吐出しない時には、溶湯栓を自動形成し
て外気の侵入を未然に防止し得る効果がある。According to the present invention, since the U-shaped pipe is continuously provided at the end of the discharge pipe, when the molten metal is not discharged, the molten metal plug is automatically formed to prevent the invasion of the outside air.
【００１９】また、吸入管と、吐出管との間に密閉留槽
を介装した構成にあっては、不活性ガスの給排により、
溶湯を自動的に取り出し得る効果がある。従って、作業
環境の改善及び重労働からの開放など多大の効果があ
る。Further, in the construction in which the closed distilling tank is interposed between the suction pipe and the discharge pipe, by supplying and discharging the inert gas,
The effect is that the molten metal can be automatically taken out. Therefore, there are great effects such as improvement of working environment and release from heavy labor.
【図１】この発明の実施例の溶湯吐出前の原理図FIG. 1 is a principle diagram of an embodiment of the present invention before molten metal discharge.
【図２】同じく吐出中の原理図[Fig. 2] Similarly, the principle diagram during discharging
【図３】同じく吐出後の原理図[Fig. 3] Similarly, the principle diagram after discharge
１ 吸入管 ２ 密閉留槽 ３ 吐出管 ４ Ｕ字管 ５ 鋳型 ６ 吸引管 ７、８ 給排気管 １０、１０ａ 金属溶湯 １９ 金属溶解炉 1 Suction Pipe 2 Closed Distillation Tank 3 Discharge Pipe 4 U-Shape 5 Mold 6 Suction Pipe 7, 8 Supply / Exhaust Pipe 10, 10a Molten Metal 19 Metal Melting Furnace
Claims (5)
を縦設したことを特徴とする金属溶湯ポンプ。1. A molten metal pump in which a U-shaped pipe is provided vertically at the tip of the discharge pipe of the molten metal pump.
上端を密閉留槽の上部に連結し、前記密閉留槽の下部に
吐出管の下端を連結し、前記吐出管の上端を縦設したＵ
字管の一端に連結し、前記Ｕ字管の他端を成形機の鋳型
に連結し、前記密閉留槽に排気手段と、不活性ガスの給
排手段を連結すると共に、前記吐出管の上端と、Ｕ字管
との連結部に不活性ガスの給排手段を連結したことを特
徴とする金属溶湯ポンプ。2. An upper end of a suction pipe having a lower end opened to a lower part of the melting furnace is connected to an upper part of the closed distillation tank, a lower end of the discharge pipe is connected to a lower part of the closed distillation tank, and an upper end of the discharge pipe is vertically connected. Set U
It is connected to one end of a U-shaped pipe, the other end of the U-shaped pipe is connected to a mold of a molding machine, an exhaust means and an inert gas supply / discharge means are connected to the closed distillation tank, and an upper end of the discharge pipe. And a means for supplying / discharging an inert gas, is connected to a connecting portion with the U-shaped tube.
請求項２記載の金属溶湯ポンプ。3. The metal melt pump according to claim 2, wherein the left and right ends of the U-shaped tube are at the same level.
した請求項２記載の金属溶湯ポンプ。4. The molten metal pump according to claim 2, wherein the evacuation means is a vacuum pump and its intake pipe.
気ポンプの結合とした請求項２記載の金属溶湯ポンプ。5. The molten metal pump according to claim 2, wherein the supply / discharge means is a combination of a supply / exhaust pipe, an opening / closing valve, and a supply / exhaust pump.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3274538A JP2561188B2 (en) | 1991-09-26 | 1991-09-26 | Metal melt pump |
| KR1019920013772A KR930005881A (en) | 1991-09-26 | 1992-07-31 | Fluid transfer method and fluid transfer device of fluid transfer system |
| AU22874/92A AU2287492A (en) | 1991-09-26 | 1992-09-09 | Method, system and apparatus for transferring fluids |
| CA002077862A CA2077862A1 (en) | 1991-09-26 | 1992-09-09 | Method, system and apparatus for transferring fluids |
| EP19920308383 EP0534663A3 (en) | 1991-09-26 | 1992-09-15 | Method, system and apparatus for transferring fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3274538A JP2561188B2 (en) | 1991-09-26 | 1991-09-26 | Metal melt pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0584564A true JPH0584564A (en) | 1993-04-06 |
| JP2561188B2 JP2561188B2 (en) | 1996-12-04 |
Family
ID=17543108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3274538A Expired - Fee Related JP2561188B2 (en) | 1991-09-26 | 1991-09-26 | Metal melt pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2561188B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100771931B1 (en) * | 2006-06-30 | 2007-10-31 | 주식회사환경과생명 | Melting metal feed device |
| US7411753B2 (en) | 2004-08-31 | 2008-08-12 | Kabushiki Kaisha Toshiba | Method and apparatus for magnetization test of write head in a disk drive |
| US7476357B2 (en) | 2004-12-02 | 2009-01-13 | Thut Bruno H | Gas mixing and dispersement in pumps for pumping molten metal |
| US7534284B2 (en) | 2007-03-27 | 2009-05-19 | Bruno Thut | Flux injection with pump for pumping molten metal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51143527A (en) * | 1975-06-05 | 1976-12-09 | Ono Norio | Automatic pouring apparatus by suction in die casting machine |
| JPS61245963A (en) * | 1985-04-23 | 1986-11-01 | Toshiba Mach Co Ltd | Molten metal supplying device |
| JPH0542358A (en) * | 1991-08-09 | 1993-02-23 | Toshiba Mach Co Ltd | Apparatus for supplying molten metal |
-
1991
- 1991-09-26 JP JP3274538A patent/JP2561188B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51143527A (en) * | 1975-06-05 | 1976-12-09 | Ono Norio | Automatic pouring apparatus by suction in die casting machine |
| JPS61245963A (en) * | 1985-04-23 | 1986-11-01 | Toshiba Mach Co Ltd | Molten metal supplying device |
| JPH0542358A (en) * | 1991-08-09 | 1993-02-23 | Toshiba Mach Co Ltd | Apparatus for supplying molten metal |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7411753B2 (en) | 2004-08-31 | 2008-08-12 | Kabushiki Kaisha Toshiba | Method and apparatus for magnetization test of write head in a disk drive |
| US7476357B2 (en) | 2004-12-02 | 2009-01-13 | Thut Bruno H | Gas mixing and dispersement in pumps for pumping molten metal |
| KR100771931B1 (en) * | 2006-06-30 | 2007-10-31 | 주식회사환경과생명 | Melting metal feed device |
| US7534284B2 (en) | 2007-03-27 | 2009-05-19 | Bruno Thut | Flux injection with pump for pumping molten metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2561188B2 (en) | 1996-12-04 |
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