JPH08270590A - Pump made of artificial graphite for high melting metal - Google Patents
Pump made of artificial graphite for high melting metalInfo
- Publication number
- JPH08270590A JPH08270590A JP9591395A JP9591395A JPH08270590A JP H08270590 A JPH08270590 A JP H08270590A JP 9591395 A JP9591395 A JP 9591395A JP 9591395 A JP9591395 A JP 9591395A JP H08270590 A JPH08270590 A JP H08270590A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- graphite
- molten metal
- metal
- high melting
- 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.)
- Withdrawn
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【技術分野】本発明は、溶融金属、特にアルミニウムな
ど融点５００℃以上の高融点の溶融金属を汲み上げるた
めの人造黒鉛製ポンプに関するもので、より詳しくはポ
ンプ内において溶融金属が凝固するのを防止するべく構
造としたポンプに関する。TECHNICAL FIELD The present invention relates to an artificial graphite pump for pumping a molten metal, particularly a molten metal having a high melting point such as aluminum having a melting point of 500 ° C. or higher. More specifically, the molten metal is prevented from solidifying in the pump. The present invention relates to a pump structured as much as possible.
【０００２】[0002]
【従来の技術】溶融金属用のポンプには、溶融した金属
との反応が低いということから、黒鉛製のポンプが多く
使用されている。溶融金属が亜鉛など比較的低融点の金
属の場合は、問題は生じない。2. Description of the Related Art As a pump for molten metal, a graphite pump is often used because of its low reaction with molten metal. If the molten metal is a metal having a relatively low melting point such as zinc, no problem occurs.
【０００３】しかし、アルミニウムなどの融点５００℃
以上の高融点金属の場合、ポンプ本体の吐出管内で、黒
鉛は黒体に近い特性のため吸熱、放熱が大きく、放熱に
よる冷却効果と熱伝導率の高温での低下のため凝固が生
じやすい。However, the melting point of aluminum or the like is 500 ° C.
In the case of the above-mentioned high melting point metal, in the discharge pipe of the pump body, graphite has a property close to that of a black body, so that heat absorption and heat dissipation are large, and solidification is likely to occur due to the cooling effect due to heat dissipation and the decrease in thermal conductivity at high temperatures.
【０００４】[0004]
【発明の課題】かかる冷却による凝固への対処のため、
ポンプを溶湯に浸漬することにより、ある程度加熱する
ことは可能だが、アルミニウムの凝固を防止することは
できない。かかる方法にてアルミニウムを吸引するのに
は、揚程６００Ｈでポンプ上部の温度が５００℃以上と
なるようにする必要があるため、特殊な断熱構造を要す
る上、加熱時間も約９０分かかる。DISCLOSURE OF THE INVENTION To cope with such solidification due to cooling,
Although it is possible to heat the pump to some extent by immersing it in the molten metal, it cannot prevent the solidification of aluminum. In order to suck aluminum by such a method, it is necessary to raise the temperature of the upper part of the pump to 500 ° C. or more at a lift of 600 H, so that a special heat insulating structure is required and the heating time also takes about 90 minutes.
【０００５】この凝固防止のために、ポンプの外周に電
気ヒータを巻装し、加熱する方法や、実公平１−３５５
９８号記載のように、溶融金属移送用のリニア電磁ポン
プにおいて保護管の軸方向に予熱ヒータが導入された装
置などが使用されている。In order to prevent this solidification, a method in which an electric heater is wound around the outer periphery of the pump to heat the pump, and a method of using a fair heat exchanger of 1-355.
As described in No. 98, a device in which a preheater is introduced in the axial direction of a protective tube is used in a linear electromagnetic pump for transferring molten metal.
【０００６】これらの装置により溶融金属の凝固防止の
ための加熱の効果は期待できるが、さらに簡易な構造で
短時間で加熱効果のある装置の開発が望まれていた。Although the heating effect for preventing the solidification of the molten metal can be expected by these devices, it has been desired to develop a device having a simple structure and a heating effect in a short time.
【０００７】[0007]
【発明の課題】上記のような問題を解決するため、本発
明は、アルミニウムなどの高融点金属を汲み上げる場合
にも特殊な断熱構造を必要とせず、加熱時間も短かく、
溶融金属の凝固防止ができる構造とした黒鉛製ポンプを
提供するものである。In order to solve the above problems, the present invention does not require a special heat insulating structure even when pumping a refractory metal such as aluminum, and the heating time is short.
The present invention provides a graphite pump having a structure capable of preventing solidification of molten metal.
【０００８】[0008]
【課題を解決するための手段】上記の課題を解決するた
め本発明が提供するのは、ポンプ本体の上部の内部には
１本又は複数本の加熱用のカートリッジ式ヒーターを設
置してなる溶融金属用の黒鉛製ポンプである。In order to solve the above-mentioned problems, the present invention provides a melting method in which one or a plurality of heating cartridge type heaters are installed inside the upper part of the pump body. It is a graphite pump for metal.
【０００９】以下に本発明の構成を詳細に説明する。図
１は、本発明の溶融金属用黒鉛製ポンプの全体図および
Ａ−Ａ線断面図であり、意匠登録番号８９０１８６号の
ポンプにヒーターを設置した例である。本発明の溶融金
属用黒鉛製ポンプは黒鉛製ポンプ１と溶融金属に運動を
与える黒鉛製インペラー２と前記インペラー２の回転軸
となる黒鉛製インペラーシャフト３とからなる。The structure of the present invention will be described in detail below. FIG. 1 is an overall view and a sectional view taken along the line AA of the graphite pump for molten metal of the present invention, which is an example in which a heater is installed in a pump of design registration number 890186. The graphite pump for molten metal according to the present invention comprises a graphite pump 1, a graphite impeller 2 that gives motion to the molten metal, and a graphite impeller shaft 3 that serves as a rotating shaft of the impeller 2.
【００１０】溶融金属は、黒鉛製ポンプ１の本体の下方
に設けられた吸込口４より吸引される。吸込口４には目
皿が取り付けられている。次いで溶融金属は吐出管５を
通って吐出部より吐出される。接続ピン６は回転動力部
と接続する部分である。The molten metal is sucked through a suction port 4 provided below the main body of the graphite pump 1. A plate is attached to the suction port 4. Next, the molten metal is discharged from the discharge portion through the discharge pipe 5. The connection pin 6 is a part connected to the rotary power unit.
【００１１】空気モーター、インバーター制御付電動機
等に接続される。本発明において特徴となるのは、黒鉛
製ポンプ本体の上部の内部にカートリッジ式のヒーター
７を埋込み式に設置していることである。It is connected to an air motor, an electric motor with an inverter control, and the like. A feature of the present invention is that the cartridge-type heater 7 is embedded in the upper portion of the graphite pump main body.
【００１２】このヒーターによりポンプ本体の上部を加
熱することにより、アルミニウムのように融点５００℃
以上の高融点金属であっても、凝固を防止することがで
き、安定して汲み上げることができる。本発明のポンプ
は埋込み式のヒーターをポンプ本体の上部内部に設置し
ているので、加熱時間が短かく溶融金属の凝固防止の効
果を呈する。By heating the upper part of the pump body with this heater, the melting point is 500 ° C. like aluminum.
Even with the above-mentioned high melting point metals, solidification can be prevented and pumping can be performed stably. Since the pump of the present invention has the embedded heater installed inside the upper portion of the pump body, it has a short heating time and exhibits the effect of preventing the solidification of the molten metal.
【００１３】またポンプ本体を均一に加温できるため、
揚程６００Ｈでポンプ上部の温度が３００℃程度あれ
ば、溶融金属を汲み上げることができる。したがって特
別な断熱構造を要しない。本発明にて設置するヒーター
は、１本でも複数本でも適宜可能である。Since the pump body can be heated uniformly,
If the head of the pump is about 300 ° C. at a head of 600 H, the molten metal can be pumped up. Therefore, no special heat insulation structure is required. The number of heaters installed in the present invention may be one or plural.
【００１４】[0014]
【本発明の効果】本発明の溶融金属黒鉛ポンプは、ポン
プ本体の上部の内部にカートリッジ式ヒーターを設置す
ることにより、アルミニウムなど高融点の金属であって
も、凝固防止が可能で、安定して金属を汲み上げること
ができる。加熱時間も溶湯に投入後３０分程度と短か
く、また特別な断熱構造も要しない。EFFECTS OF THE INVENTION The molten metal graphite pump of the present invention has a cartridge type heater installed in the upper portion of the pump body, so that even a high melting point metal such as aluminum can be prevented from solidifying and is stable. Can pump up metal. The heating time is short, about 30 minutes after being added to the molten metal, and no special heat insulating structure is required.
【図１】本発明のポンプの全体図およびＡ−Ａ線断面図
である。FIG. 1 is an overall view and a sectional view taken along line AA of a pump of the present invention.
１ ポンプ本体 ２ 黒鉛製インペラー ３ 黒鉛製インペラーシャフト ４ 吸込口 ５ 吐出管 ６ 接続ピン ７ カートリッジ式ヒーター 1 Pump main body 2 Graphite impeller 3 Graphite impeller shaft 4 Suction port 5 Discharge pipe 6 Connection pin 7 Cartridge heater
Claims (1)
の上部の内部には、１本又は複数本の加熱用のカートリ
ッジ式ヒーターを設置してなる溶融金属用の黒鉛製ポン
プ。1. A graphite pump for molten metal, comprising: a graphite pump for molten metal, wherein one or a plurality of cartridge-type heaters for heating are installed inside an upper portion of a main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9591395A JPH08270590A (en) | 1995-03-30 | 1995-03-30 | Pump made of artificial graphite for high melting metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9591395A JPH08270590A (en) | 1995-03-30 | 1995-03-30 | Pump made of artificial graphite for high melting metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08270590A true JPH08270590A (en) | 1996-10-15 |
Family
ID=14150531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9591395A Withdrawn JPH08270590A (en) | 1995-03-30 | 1995-03-30 | Pump made of artificial graphite for high melting metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08270590A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058117A (en) * | 2018-08-22 | 2018-12-21 | 株洲冶炼集团股份有限公司 | A method of extending zinc liquid pump graphite piece service life |
-
1995
- 1995-03-30 JP JP9591395A patent/JPH08270590A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058117A (en) * | 2018-08-22 | 2018-12-21 | 株洲冶炼集团股份有限公司 | A method of extending zinc liquid pump graphite piece service life |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020604 |