JP3362368B2 - Fixed surface furnace for molten metal - Google Patents
Fixed surface furnace for molten metalInfo
- Publication number
- JP3362368B2 JP3362368B2 JP24489393A JP24489393A JP3362368B2 JP 3362368 B2 JP3362368 B2 JP 3362368B2 JP 24489393 A JP24489393 A JP 24489393A JP 24489393 A JP24489393 A JP 24489393A JP 3362368 B2 JP3362368 B2 JP 3362368B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- furnace
- hot water
- water supply
- level
- 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
- 239000002184 metal Substances 0.000 title claims description 85
- 229910052751 metal Inorganic materials 0.000 title claims description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 238000005266 casting Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- 238000007654 immersion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、金属溶湯（以下、単に
溶湯と称する）を鋳造機へ給湯するための給湯装置にお
ける溶湯を貯え保持するための定湯面炉に関するもので
ある。
【０００２】
【従来の技術】給湯装置でもって溶湯を鋳造機（の射出
スリーブ内）へ給湯する場合、鋳造製品の成形精度を向
上させるために溶湯の定量供給が要求され、この定量供
給を実現させるために溶湯保持炉（定湯面炉）内の湯面
レベルを一定に維持することが要求される。
【０００３】そこで従来では、例えば特開平３−１８４
６６号公報等に開示された如く、溶湯保持炉（定湯面
炉）に空気加圧室と汲出し室とを形成せしめ、空気加圧
室内を加圧することにより汲出し室内の湯面レベルを上
げると共に汲出し室内に設置した湯面検知センサーでも
ってその湯面が給湯毎に一定になるようにコントロール
していた。
【０００４】しかし乍ら係る定湯面炉では、炉自体の構
造が複雑でコスト高になると共に、空気加圧室などの密
閉部分の炉壁や温度センサーなどのメンテナンス性が悪
い不具合があった。しかも、空気加圧室内に、汲出し室
内の定湯面を維持するための余分な溶湯が必要となり、
その為に、溶湯の種類を変更したり炉を止めたりする際
に相当量の溶湯を排出させる必要が生じ、作業性が悪い
だけでなく溶解費が余分にかかる不具合があった。
【０００５】
【発明が解決しようとする課題】本発明はこの様な従来
の不具合に鑑みてなされたものであり、炉自体の構造が
比較的簡素で製造コストを低減化させることが出来る共
に、給湯に利用し得る溶湯量の比率を向上させて、溶湯
の種類を変更したり炉を止めたりする際に排出する溶湯
量を大幅に減少させることが出来る溶融金属用定湯面炉
を提供せんとするものである。
【０００６】
【課題を解決するための手段】斯る目的を達成する本発
明の溶融金属用定湯面炉は、溶湯を貯えて置くための保
持炉部と溶湯を鋳造機へ送り出すための定湯面炉部とを
それぞれ大気開放にして連通口を介して連通してなる金
属溶湯用定湯面炉であって、保持炉部の底面を定湯面炉
部の基準湯面と同じかそれより高く設定すると共に上記
連通口の位置を定湯面炉部の基準湯面より下に設定し、
上記連通口を開閉する第１溶湯弁を定湯面炉部に設置し
た湯面検知センサーで制御し、且つ上記定湯面炉部内に
は加圧チャンバーを備えた給湯加圧室を設置せしめ、該
給湯加圧室の溶湯汲入れ口を定湯面炉部の溶湯中に臨ま
せて第２溶湯弁で開閉自在とし、該給湯加圧室の溶湯吐
出口を鋳造機へ溶湯を供給するための給湯管に連通せし
めてなることを特徴としたものである。
【０００７】
【実施例】以下、本発明の実施の一例を図面に基づいて
説明する。本発明に係る定湯面炉は、保持炉部１と定湯
面炉部２とを並列状に連続一体的に構築して構成され
る。
【０００８】保持炉部１は、定湯面炉部２へ供給する溶
湯ｍを大量に貯えて置くためのものであり、定湯面炉部
２と比較して十分に大きな容積となるように構成して、
大気開放状に形成し、その炉蓋３の内面等に加熱用ヒー
ター４及び温度センサー５を配置せしめる。
【０００９】定湯面炉部２は、鋳造機（図示せず）へ供
給する溶湯ｍ’を所要一定量保持するためのものであ
り、大気開放状態に形成し、その炉蓋６に湯面検知セン
サー７及び温度センサー８を設置すると共に、炉内部に
加熱用浸漬ヒーター９及び給湯加圧室10を設置せしめ、
給湯加圧室10にその内部の溶湯ｍ”を鋳造機へ供給する
ための給湯管11を連通接続させる。
【００１０】そして、保持炉部１の底面１a を定湯面炉
部２の基準湯面Ｌと同じかそれより高く設定せしめ、保
持炉部１と定湯面炉部２とを連通口12を介して互いに連
通させると共に、上記連通口12の高さ位置を定湯面炉部
２の基準湯面Ｌより下に設定する。
【００１１】この際、上記連通口12の手前、保持炉部１
側に溶湯バルブ室13を形成せしめ、その溶湯バルブ室13
内に連通口12を開閉するための第１溶湯弁14を設置する
と共に、溶湯バルブ室13の手前に保持部１内の溶湯ｍを
堰止めるための溶湯栓15及び溶湯フィルター16を設置す
る。この様にすれば、常に清浄な溶湯を定湯面炉部２へ
供給することが出来ると共に、給湯作業を長時間休止し
た場合などに、第１溶湯弁14からの溶湯洩れを完全に防
ぐことが出来るようになる。
【００１２】また、上記連通口12を開閉するための第１
溶湯弁14は、定湯面炉部２に設置した湯面検知センサー
７と電気信号で接続させ、湯面検知センサー７でもって
開閉動作が制御されるようにする。
【００１３】又、定湯面炉部２内に設置する給湯加圧室
10は、その上部に加圧チャンバー17を備えた密閉室状に
形成し、下部に定湯面炉部２内の溶湯ｍ’を取入れるた
めの溶湯汲入れ口18を開口形成すると共に、下部側部に
取入れた溶湯ｍ’を鋳造機側へ送出すための溶湯吐出口
19を開口形成せしめ、溶湯汲入れ口18を定湯面炉部２の
溶湯ｍ’中に臨ませて第２溶湯弁20で開閉自在とし、溶
湯吐出口19を鋳造機へ溶湯を供給するための給湯管11に
連通せしめる。
【００１４】而して、鋳造機へ溶湯を供給する場合に
は、給湯加圧室10の溶湯汲入れ口18を第２溶湯弁20で閉
じた後（図３の(a) の状態）、加圧チャンバー17を動作
させて給湯加圧室10の内部を加圧して、給湯加圧室10内
の溶湯ｍ”を溶湯吐出口19から給湯管11を通して鋳造機
へ給湯する（図３の(b) の状態）。
【００１５】そして、鋳造機への給湯を完了した後、加
圧チャンバー17を動作させて給湯加圧室10の内部を大気
圧状態に戻し、その後第２溶湯弁20を動作させて給湯加
圧室10の溶湯汲入れ口18を開放する（図３の(c) の状
態）。すると、定湯面炉部２内の溶湯ｍ’が溶湯汲入れ
口18から給湯加圧室10内に、給湯前の湯面レベルすなわ
ち定湯面炉部２内の溶湯ｍ’の湯面レベル（基準湯面）
Ｌまで汲入れられる（図３の(d) の状態）。この際、加
圧チャンバー17を動作させて最初の位置に戻す。然る
後、給湯加圧室10の溶湯汲入れ口18を第２溶湯弁20で閉
じて、上述した動作を繰り返す。
【００１６】この時、定湯面炉部２の溶湯ｍ’の基準湯
面Ｌのレベルが下がると、定湯面炉部２に設置した湯面
検知センサー７がはたらいて第１溶湯弁14を動作させ、
保持炉部１と定湯面炉部２とを連通させる連通口12が開
放され、保持炉部１内の溶湯ｍが定湯面炉部２内に補給
され、基準湯面Ｌのレベルが一定に維持される。
【００１７】
【発明の効果】本発明の金属溶湯用定湯面炉は斯様に構
成したので、保持炉部内の溶湯を自然落差により定湯面
炉部へ常時適正に補給することが出来、従って、炉自体
の構造が比較的簡素となり、製造コストを低減化するこ
とが出来る。
【００１８】しかも、炉内部に残る溶湯量は、容積の小
さな定湯面炉部内に残留する分だけである為、給湯に直
接利用し得る溶湯量の比率を向上させて、溶湯の種類を
変更したり炉を止めたりする際に排出する溶湯量を大幅
に減少させ、その作業性を向上させることが出来ると共
に、溶解費を削減することが出来る。
【００１９】更に、常時メンテナンスが必要な湯面検知
センサーや温度センサー等は炉蓋側などの大気開放され
た部分に設置することが出来るので、湯面検知センサー
等のトラブルが発生した場合でも、従来の炉と比較して
炉自体の構造が簡素になることと相俟って、メンテナン
ス性を大幅に向上させることが出来る。
【００２０】また、鋳造機へ溶湯を定量給湯するための
機構としては実質的に給湯加圧室だけで済むので、炉自
体の構造を一層簡素化させることが出来ると共に、鋳造
機へ定量給湯する際の制御が容易となり、且つ溶湯の定
量性の精度を向上させることが出来る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for storing and holding molten metal in a hot water supply apparatus for supplying molten metal (hereinafter simply referred to as molten metal) to a casting machine. It is related to a bath furnace. 2. Description of the Related Art When a molten metal is supplied to a casting machine (in an injection sleeve) by a hot water supply apparatus, a constant supply of the molten metal is required in order to improve the molding accuracy of a cast product. In order to perform this, it is required to maintain the level of the molten metal in the molten metal holding furnace (fixed level furnace) constant. Therefore, conventionally, for example, Japanese Patent Application Laid-Open No. 3-184
As disclosed in Japanese Patent No. 66 and the like, an air pressurizing chamber and a pumping chamber are formed in a molten metal holding furnace (fixed level furnace), and the level of the metal level in the pumping chamber is increased by pressurizing the air pressurizing chamber. The water level was controlled by the water level detection sensor installed in the pumping room so that the water level became constant every time hot water was supplied. [0004] However, in such a constant-temperature furnace, the structure of the furnace itself is complicated and the cost is high, and there is a problem that the maintainability of the furnace wall and the temperature sensor of a closed portion such as an air pressurizing chamber is poor. . In addition, extra molten metal is required in the air pressurized chamber to maintain a constant level in the pumping chamber.
For this reason, when changing the type of molten metal or shutting down the furnace, it is necessary to discharge a considerable amount of molten metal, which causes not only poor workability but also extra melting cost. SUMMARY OF THE INVENTION The present invention has been made in view of such conventional problems, and the structure of the furnace itself is relatively simple, so that the manufacturing cost can be reduced. We do not provide a constant temperature furnace for molten metal that can increase the ratio of the amount of molten metal that can be used for hot water supply and significantly reduce the amount of molten metal discharged when changing the type of molten metal or shutting down the furnace. It is assumed that. SUMMARY OF THE INVENTION A molten metal leveling furnace according to the present invention for achieving the above object has a holding furnace section for storing molten metal and a constant level for feeding molten metal to a casting machine. and the molten metal surface furnace section
Gold that is open to the atmosphere and communicates through the communication port
A constant-temperature furnace for a metal melt, wherein the bottom surface of the holding furnace is set to be equal to or higher than the reference level of the constant-temperature furnace, and the position of the communication port is set to the reference level of the constant-level furnace. Set below
The first molten metal valve for opening and closing the communication port is controlled by a level detection sensor installed in the constant level furnace, and the first molten metal valve is disposed in the constant level furnace.
Installed a hot water supply pressurized chamber equipped with a pressurized chamber,
With the molten metal inlet of the hot water supply pressurization room facing the molten metal in the
To open and close with the second molten metal valve,
Connect the outlet to a hot water supply pipe for supplying molten metal to the casting machine.
It is obtained characterized by comprising Te fit. An embodiment of the present invention will be described below with reference to the drawings. The constant temperature furnace according to the present invention is constructed by continuously and integrally constructing a holding furnace 1 and a constant temperature furnace 2 in parallel. The holding furnace 1 is for storing a large amount of the molten metal m to be supplied to the constant temperature furnace 2, and has a sufficiently large volume as compared with the constant temperature furnace 2. Make up
It is formed to be open to the atmosphere, and a heater 4 for heating and a temperature sensor 5 are arranged on the inner surface of the furnace lid 3 and the like. The constant temperature furnace 2 is for holding a required constant amount of molten metal m 'to be supplied to a casting machine (not shown), and is formed in an open state to the atmosphere. Along with installing the detection sensor 7 and the temperature sensor 8, the heating immersion heater 9 and the hot water supply pressurizing chamber 10 were installed inside the furnace.
A hot water supply pipe 11 for supplying the molten metal m ″ inside the hot water supply chamber 10 to the casting machine is connected to the hot water supply pressurizing chamber 10. The holding furnace 1 and the constant temperature furnace 2 are communicated with each other through the communication port 12, and the height position of the communication port 12 is set to be equal to or higher than the surface L. Is set to be lower than the reference molten metal level L. At this time, the holding furnace portion 1 is located just before the communication port 12.
The molten metal valve chamber 13 is formed on the side
A first molten metal valve 14 for opening and closing the communication port 12 is provided therein, and a molten metal plug 15 and a molten metal filter 16 for blocking the molten metal m in the holding portion 1 are provided in front of the molten metal valve chamber 13. In this way, it is possible to always supply a clean molten metal to the constant temperature furnace 2 and to completely prevent the molten metal from leaking from the first molten metal valve 14 when the hot water supply operation is suspended for a long time. Can be done. Further, a first port for opening and closing the communication port 12 is provided.
The molten metal valve 14 is connected by an electric signal to a level detecting sensor 7 installed in the constant level furnace 2 so that the opening / closing operation is controlled by the level detecting sensor 7. A hot water supply pressurizing chamber installed in the constant temperature furnace 2
10 is formed in a closed chamber shape having a pressurized chamber 17 at an upper part thereof, and a molten metal pumping port 18 for taking in a molten metal m ′ in the constant temperature furnace part 2 is opened at a lower part thereof. Molten discharge port for sending molten metal m 'taken into the side to the casting machine side
In order to supply the molten metal to the casting machine, the opening 19 is formed, the molten metal inlet port 18 faces the molten metal m 'of the constant temperature furnace 2 and can be opened and closed by the second molten metal valve 20. To the hot water supply pipe 11. When the molten metal is supplied to the casting machine, the molten metal pumping port 18 of the hot water supply pressurizing chamber 10 is closed by the second molten metal valve 20 (the state shown in FIG. 3A). The pressurizing chamber 17 is operated to pressurize the inside of the hot water supply pressurizing chamber 10, and the molten metal m ″ in the hot water supply pressurizing chamber 10 is supplied from the molten metal discharge port 19 to the casting machine through the hot water supply pipe 11 ((FIG. After completion of the hot water supply to the casting machine, the pressurizing chamber 17 is operated to return the inside of the hot water supply pressurizing chamber 10 to the atmospheric pressure state. It is operated to open the molten metal inlet port 18 of the hot water supply pressurizing chamber 10 (the state shown in FIG. 3 (c)), and the molten metal m 'in the constant temperature furnace 2 is supplied from the molten metal inlet port 18 to the hot water supply port. In the pressure chamber 10, the level of the molten metal before hot water supply, that is, the level of the molten metal m ′ in the constant level furnace 2 (reference level)
It is pumped up to L (state of (d) in FIG. 3). At this time, the pressurizing chamber 17 is operated to return to the initial position. Thereafter, the molten metal pumping port 18 of the hot water supply pressurizing chamber 10 is closed by the second molten metal valve 20, and the above-described operation is repeated. At this time, when the level of the reference level L of the molten metal m 'in the constant temperature furnace 2 lowers, the level detection sensor 7 installed in the constant temperature furnace 2 operates to activate the first molten valve 14. Let it work,
The communication port 12 for communicating the holding furnace 1 and the constant temperature furnace 2 is opened, the molten metal m in the holding furnace 1 is supplied into the constant temperature furnace 2, and the level of the reference molten metal L is constant. Is maintained. Since the constant temperature furnace for molten metal of the present invention is configured as described above, the molten metal in the holding furnace can always be properly replenished to the constant temperature furnace by natural head. Therefore, the structure of the furnace itself is relatively simple, and the manufacturing cost can be reduced. Further, since the amount of molten metal remaining in the furnace is only the amount remaining in the small-volume fixed-surface furnace, the ratio of the amount of molten metal that can be directly used for hot water supply is improved, and the type of molten metal is changed. The amount of molten metal discharged at the time of dropping or shutting down the furnace can be greatly reduced, the workability can be improved, and the melting cost can be reduced. Further , since the level sensor and the temperature sensor, etc., which require constant maintenance, can be installed in a part that is open to the atmosphere, such as the furnace lid, even if a trouble occurs with the level sensor, etc. In addition to the fact that the structure of the furnace itself is simpler than that of a conventional furnace, the maintainability can be greatly improved. Further, since substantially only need hot water supply pressure chamber as a mechanism for quantifying hot water to melt the casting machine, making it possible to further simplify the structure of the furnace itself, quantified hot water to the casting machine In this case, the control is easy, and the accuracy of the quantitativeness of the molten metal can be improved.
【図面の簡単な説明】
【図１】 本発明実施の一例を示す模式断面図。
【図２】 図１の模式横断平面図。
【図３】 金属溶湯の給湯動作を説明する給湯加圧室
部分の模式断面図。
【符号の説明】
１：保持炉部 ２：定湯面炉部
３，６：炉蓋 ４：加熱用ヒータ
ー
５，８：温度センサー ７：湯面検知セン
サー
９：加熱用浸漬ヒーター 10：給湯加圧室
11：給湯管 12：連通口
13：溶湯バルブ室 14：第１溶湯弁
15：溶湯栓 16：溶湯フィルタ
ー
17：加圧チャンバー 18：溶湯汲入れ口
19：溶湯吐出口 20：第２溶湯弁
ｍ，ｍ’，ｍ”：溶湯BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic sectional view showing one embodiment of the present invention. FIG. 2 is a schematic cross-sectional plan view of FIG. FIG. 3 is a schematic cross-sectional view of a hot-water supply pressurizing chamber illustrating a hot-water supply operation of molten metal. [Description of Signs] 1: Holding furnace part 2: Constant temperature furnace part 3, 6: Furnace lid 4: Heating heater 5, 8: Temperature sensor 7: Water level detection sensor 9: Immersion heater for heating 10: Hot water supply Pressure chamber 11: Hot water supply pipe 12: Communication port 13: Molten valve chamber 14: First molten metal valve 15: Molten tap 16: Molten filter 17: Pressurized chamber 18: Molten pumping port 19: Molten discharge port 20: Second molten metal Valves m, m ', m ": molten metal
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−371359（ＪＰ，Ａ) 特開 昭55−149768（ＪＰ，Ａ) 特開 平２−127962（ＪＰ，Ａ) 実開 昭63−133871（ＪＰ，Ｕ) 特公 昭17−4627（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.7，ＤＢ名) B22D 17/30 B22D 17/32 B22D 18/08 501 B22D 39/06 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-371359 (JP, A) JP-A-55-149768 (JP, A) JP-A-2-127962 (JP, A) 133871 (JP, U) JP 17-4627 (JP, B1) (58) Fields investigated (Int. Cl. 7 , DB name) B22D 17/30 B22D 17/32 B22D 18/08 501 B22D 39/06
Claims (1)
湯を鋳造機へ送り出すための定湯面炉部とをそれぞれ大
気開放にして連通口を介して連通してなる金属溶湯用定
湯面炉であって、保持炉部の底面を定湯面炉部の基準湯
面と同じかそれより高く設定すると共に上記連通口の位
置を定湯面炉部の基準湯面より下に設定し、上記連通口
を開閉する第１溶湯弁を定湯面炉部に設置した湯面検知
センサーで制御し、且つ上記定湯面炉部内には加圧チャ
ンバーを備えた給湯加圧室を設置せしめ、該給湯加圧室
の溶湯汲入れ口を定湯面炉部の溶湯中に臨ませて第２溶
湯弁で開閉自在とし、該給湯加圧室の溶湯吐出口を鋳造
機へ溶湯を供給するための給湯管に連通せしめてなるこ
とを特徴とする金属溶湯用定湯面炉。(57) [Claims] [Claim 1] A holding furnace portion for storing and storing a molten metal and a constant surface furnace portion for sending the molten metal to a casting machine are respectively large.
Open metal vent and communicate through the communication port for molten metal
In a water level furnace, the bottom surface of the holding furnace is set to be equal to or higher than the reference level of the constant level furnace, and the position of the communication port is set below the reference level of the constant level furnace. A first molten metal valve for opening and closing the communication port is controlled by a level detection sensor installed in the constant level furnace , and a pressure chamber is provided in the constant level furnace.
A hot water supply pressurizing chamber equipped with a hot water supply
Of the molten metal in the molten metal in the furnace
Can be opened and closed with a hot water valve, and the molten metal discharge port of the hot water supply pressurizing chamber is cast
A constant temperature furnace for molten metal, which is connected to a hot water supply pipe for supplying molten metal to the machine .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24489393A JP3362368B2 (en) | 1993-09-30 | 1993-09-30 | Fixed surface furnace for molten metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24489393A JP3362368B2 (en) | 1993-09-30 | 1993-09-30 | Fixed surface furnace for molten metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07100618A JPH07100618A (en) | 1995-04-18 |
| JP3362368B2 true JP3362368B2 (en) | 2003-01-07 |
Family
ID=17125550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24489393A Expired - Lifetime JP3362368B2 (en) | 1993-09-30 | 1993-09-30 | Fixed surface furnace for molten metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3362368B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4678978B2 (en) * | 2001-04-09 | 2011-04-27 | 株式会社アーレスティ | Hot water supply system for molten metal |
-
1993
- 1993-09-30 JP JP24489393A patent/JP3362368B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07100618A (en) | 1995-04-18 |
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