JP2012217999A - Molten metal drawing method and molten metal drawing apparatus - Google Patents

Molten metal drawing method and molten metal drawing apparatus Download PDF

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JP2012217999A
JP2012217999A JP2011082970A JP2011082970A JP2012217999A JP 2012217999 A JP2012217999 A JP 2012217999A JP 2011082970 A JP2011082970 A JP 2011082970A JP 2011082970 A JP2011082970 A JP 2011082970A JP 2012217999 A JP2012217999 A JP 2012217999A
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JP5905667B2 (en
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Yasufumi Kondo
康文 近藤
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Toyota Motor Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a molten metal drawing method and a molten metal drawing apparatus capable of preventing foreign objects floating on a liquid surface of the molten metal from entering into a container from an opening thereof when the container is immersed in the molten metal and the opening of the container passes through the liquid surface of the molten metal.SOLUTION: A control means controls a conveying unit to bring down a container 11 to immerse the container 11 in the molten metal 1 while opening a first opening/closing valve 12b and closing a second opening/closing valve 13a to allow compressed gas supplied from a supply unit to blow out from an opening 11a of the container 11, suck the molten metal 1 from the opening 11a to the inside of the container 11 by closing the first opening/closing valve 12b and opening the second opening/closing valve 13a, convey the container 11 to a molten metal destination 3 by the conveying means in a state where the first opening/closing valve 12b and the second opening/closing valve 13a are closed and the gas in the container 11 is blocked from the external air, and drop the molten metal in the container 11 from the opening 11a to the molten metal destination 3 by opening at least one of the first opening/closing valve 12b and the second opening/closing valve 13a.

Description

本発明は、溶湯の汲み出しを行う溶湯汲出方法および溶湯汲出装置に関する。   The present invention relates to a molten metal pumping method and a molten metal pumping apparatus for pumping molten metal.

従来、溶湯の汲み出しを行う溶湯汲出装置の技術は公知となっている（例えば、特許文献１）。   Conventionally, the technique of the molten metal pumping apparatus which pumps out molten metal is well-known (for example, patent document 1).

特許文献１に記載の溶湯汲出装置は、上部を密閉した器の下部に溶湯の出入口（開口部）を設け、器の内部を開閉弁を介して大気または真空装置に連通させ、器の下部を溶湯に浸漬して、器内に溶湯が入ったら、開閉弁を閉じて器内を外気と遮断し、器内の溶湯を排出するときは、開閉弁を開いて器内の溶湯を開口部から落下させていた。   The molten metal pumping device described in Patent Document 1 is provided with a molten metal inlet / outlet (opening) at the lower part of a vessel whose upper part is sealed, and the inside of the vessel is communicated with the atmosphere or a vacuum device via an on-off valve. When the molten metal enters the chamber after it is immersed in the molten metal, close the on-off valve to shut off the inside of the chamber from the outside air, and when discharging the molten metal in the chamber, open the on-off valve and allow the molten metal in the chamber to open It was dropped.

しかし、器の溶湯への浸漬時で、器の開口部が溶湯の液面を通過するときに、溶湯の液面に浮遊している異物（例えば、溶湯の液面が空気との接触により酸化したもの）が開口部から器内に侵入していた。   However, when the vessel is immersed in the molten metal and the opening of the vessel passes through the molten metal surface, foreign matter floating on the molten metal surface (for example, the molten metal surface is oxidized by contact with air). ) Entered the vessel through the opening.

実開昭５５−５５２５６号公報Japanese Utility Model Publication No. 55-55256

本発明は、器の溶湯への浸漬時で、器の開口部が溶湯の液面を通過するときに、溶湯の液面に浮遊している異物が開口部から器内に侵入することを防止可能な溶湯汲出方法および溶湯汲出装置を提供する。   The present invention prevents foreign matter floating on the molten metal surface from entering the container when the container is immersed in the molten metal and the opening of the container passes through the molten metal surface. A molten metal pumping method and a molten metal pumping device are provided.

請求項１に記載の溶湯汲出方法は、
溶湯を内部に収容可能であり、溶湯の出入口となる開口部が底部に形成された器を用いて、溶湯の汲み出しを行う溶湯汲出方法であって、
前記器内を加圧することによって前記開口部から加圧気体を噴出させながら、前記器を下降させて溶湯に浸漬する第一工程と、
前記器内を減圧することによって、前記開口部から前記器内に溶湯を吸引する第二工程と、
前記器内の気体を外気から遮断した状態で、前記器を給湯先まで搬送する第三工程と、
前記器内を加圧することによって、前記器内の溶湯を前記開口部から前記給湯先へ落下させる第四工程と、
を備える。 The method for pumping molten metal according to claim 1 is:
A molten metal pumping method for pumping molten metal using a vessel that can accommodate molten metal inside and has an opening serving as an inlet / outlet of the molten metal formed at the bottom,
A first step of lowering the vessel and immersing it in the molten metal while jetting pressurized gas from the opening by pressurizing the inside of the vessel;
A second step of sucking molten metal into the vessel from the opening by depressurizing the vessel;
In a state where the gas in the vessel is shut off from the outside air, the third step of conveying the vessel to a hot water supply destination;
A fourth step of dropping the molten metal in the vessel from the opening to the hot water supply by pressurizing the vessel;
Is provided.

請求項２に記載の溶湯汲出方法においては、
前記第一工程では、前記器内に加圧不活性ガスを供給することにより前記器内を加圧して、前記加圧不活性ガスを前記器の開口部から噴出させる。 In the method for pumping molten metal according to claim 2,
In the first step, the inside of the vessel is pressurized by supplying pressurized inert gas into the vessel, and the pressurized inert gas is ejected from the opening of the vessel.

請求項３に記載の溶湯汲出装置においては、
溶湯を内部に収容可能であり、溶湯の出入口となる開口部が底部に形成された器を用いて、溶湯の汲み出しを行う溶湯汲出装置であって、
前記器と、
前記器内に連通され、前記器内に加圧気体を供給する供給部、ならびに、前記供給部と前記器内との連通を許容する開状態、および前記供給部と前記器内との連通を遮断する閉状態を切換可能な第一開閉弁、を有する加圧手段と、
前記器内と大気との連通を許容する開状態、および前記器内と大気との連通を遮断する閉状態を切換可能な第二開閉弁を有する連通手段と、
前記器を搬送する搬送手段と、
前記第一開閉弁、第二開閉弁、および搬送手段に接続される制御手段と、を備え、
前記制御手段は、
前記第一開閉弁を開状態にし、かつ、前記第二開閉弁を閉状態にすることによって前記供給部からの加圧気体を前記器の開口部から噴出させながら、前記搬送手段により前記器を下降させて溶湯に浸漬し、
前記器が溶湯に浸漬した状態で、前記第一開閉弁を閉状態にし、かつ、前記第二開閉弁を開状態にすることによって、前記開口部から前記器内に溶湯を吸引し、
前記器内に溶湯が吸引された状態で、前記第一開閉弁および第二開閉弁を閉状態にして、前記器内の気体を外気から遮断した状態で、前記搬送手段により前記器を給湯先まで搬送し、
前記器を給湯先まで搬送した後、前記第一開閉弁および第二開閉弁のうちの少なくとも一方を開状態にすることによって、前記器内の溶湯を前記開口部から前記給湯先へ落下させる。 In the molten metal pumping device according to claim 3,
A molten metal pumping device that pumps molten metal using a vessel that can accommodate molten metal inside and has an opening serving as an inlet / outlet of the molten metal formed at the bottom,
The vessel;
A supply unit that communicates with the inside of the vessel and supplies pressurized gas into the vessel; an open state that allows communication between the supply unit and the inside of the vessel; and communication between the supply unit and the inside of the vessel. A pressurizing means having a first on-off valve capable of switching a closed closed state;
Communication means having a second on-off valve capable of switching between an open state allowing communication between the inside of the vessel and the atmosphere and a closed state blocking communication between the inside of the vessel and the atmosphere;
Conveying means for conveying the vessel;
The first on-off valve, the second on-off valve, and a control means connected to the conveying means,
The control means includes
While the first on-off valve is in the open state and the second on-off valve is in the closed state, while the pressurized gas from the supply section is ejected from the opening of the container, the container is Descend and immerse in molten metal,
With the vessel immersed in the molten metal, the first on-off valve is closed, and the second on-off valve is opened to suck the molten metal into the vessel from the opening,
With the molten metal sucked into the vessel, the first on-off valve and the second on-off valve are closed and the gas in the vessel is shut off from the outside air, and the vessel is connected to the hot water supply destination. Transport to
After transporting the vessel to the hot water supply destination, the molten metal in the vessel is dropped from the opening to the hot water supply destination by opening at least one of the first on-off valve and the second on-off valve.

請求項４に記載の溶湯汲出装置においては、
溶湯を内部に収容可能であり、溶湯の出入口となる開口部が底部に形成された器を用いて、溶湯の汲み出しを行う溶湯汲出装置であって、
前記器と、
前記器内に連通され、前記器内に加圧気体を供給する供給部、ならびに、前記供給部と前記器内との連通を許容する開状態、および前記供給部と前記器内との連通を遮断する閉状態を切換可能な第一開閉弁、を有する加圧手段と、
前記器内と大気との連通を許容する開状態、および前記器内と大気との連通を遮断する閉状態を切換可能な第二開閉弁を有する連通手段と、
前記器内に連通され、前記器内から気体を吸引する吸気部、ならびに、前記吸気部と前記器内との連通を許容する開状態、および前記吸気部と前記器内との連通を遮断する閉状態を切換可能な第三開閉弁、を有する減圧手段と、
前記器を搬送する搬送手段と、
前記第一開閉弁、第二開閉弁、第三開閉弁、および搬送手段に接続される制御手段と、を備え、
前記制御手段は、
前記第一開閉弁を開状態にし、かつ、前記第二開閉弁と第三開閉弁を閉状態にすることによって前記供給部からの加圧気体を前記器の開口部から噴出させながら、前記搬送手段により前記器を下降させて溶湯に浸漬し、
前記器が溶湯に浸漬した状態で、前記第一開閉弁を閉状態にし、かつ、前記第二開閉弁および第三開閉弁のうちの少なくとも一方を開状態にすることによって、前記開口部から前記器内に溶湯を吸引し、
前記器内に溶湯が吸引された状態で、前記第一開閉弁、第二開閉弁および第三開閉弁を閉状態にして、前記器内の気体を外気から遮断した状態で、前記搬送手段により前記器を給湯先まで搬送し、
前記器を給湯先まで搬送した後、前記第三開閉弁を閉状態にした状態で、前記第一開閉弁および前記第二開閉弁の少なくとも一方を開状態にすることによって、前記器内の溶湯を前記開口部から前記給湯先へ落下させる。 In the molten metal pumping device according to claim 4,
A molten metal pumping device that pumps molten metal using a vessel that can accommodate molten metal inside and has an opening serving as an inlet / outlet of the molten metal formed at the bottom,
The vessel;
A supply unit that communicates with the inside of the vessel and supplies pressurized gas into the vessel; an open state that allows communication between the supply unit and the inside of the vessel; and communication between the supply unit and the inside of the vessel. A pressurizing means having a first on-off valve capable of switching a closed closed state;
Communication means having a second on-off valve capable of switching between an open state allowing communication between the inside of the vessel and the atmosphere and a closed state blocking communication between the inside of the vessel and the atmosphere;
An intake portion that communicates with the inside of the vessel and sucks gas from the inside of the vessel, an open state that allows communication between the intake portion and the inside of the vessel, and a communication between the intake portion and the inside of the vessel is blocked. A pressure reducing means having a third on-off valve capable of switching a closed state;
Conveying means for conveying the vessel;
The first on-off valve, the second on-off valve, the third on-off valve, and a control means connected to the conveying means,
The control means includes
While the first on-off valve is in an open state and the second on-off valve and the third on-off valve are in a closed state, the transfer gas is ejected from the opening of the vessel while the pressurized gas from the supply unit is ejected. The vessel is lowered by means and immersed in the molten metal,
With the vessel immersed in the molten metal, the first on-off valve is closed, and at least one of the second on-off valve and the third on-off valve is opened, so that Aspirate the molten metal into the chamber,
With the molten metal sucked into the vessel, the first on-off valve, the second on-off valve, and the third on-off valve are closed, and the gas in the vessel is shut off from the outside air by the conveying means. Transport the vessel to the hot water supply,
After transporting the vessel to the hot water supply destination, the molten metal in the vessel is opened by opening at least one of the first on-off valve and the second on-off valve in a state where the third on-off valve is closed. Is dropped from the opening to the hot water supply destination.

請求項５に記載の溶湯汲出装置においては、
溶湯を内部に収容可能であり、溶湯の出入口となる開口部が底部に形成された器を用いて、溶湯の汲み出しを行う溶湯汲出装置であって、
前記器と、
前記器内に連通され、前記器内に加圧気体を供給する供給部、ならびに、前記供給部と前記器内との連通を許容する開状態、および前記供給部と前記器内との連通を遮断する閉状態を切換可能な第一開閉弁、を有する加圧手段と、
前記器内に連通され、前記器内から気体を吸引する吸気部、ならびに、前記吸気部と前記器内との連通を許容する開状態、および前記吸気部と前記器内との連通を遮断する閉状態を切換可能な第三開閉弁、を有する減圧手段と、
前記器を搬送する搬送手段と、
前記第一開閉弁、第三開閉弁、および搬送手段に接続される制御手段と、を備え、
前記制御手段は、
前記第一開閉弁を開状態にし、かつ、前記第三開閉弁を閉状態にすることによって前記供給部からの加圧気体を前記器の開口部から噴出させながら、前記搬送手段により前記器を下降させて溶湯に浸漬し、
前記器が溶湯に浸漬した状態で、前記第一開閉弁を閉状態にし、かつ、前記第三開閉弁を開状態にすることによって、前記開口部から前記器内に溶湯を吸引し、
前記器内に溶湯が吸引された状態で、前記第一開閉弁および第三開閉弁を閉状態にして、前記器内の気体を外気から遮断した状態で、前記搬送手段により前記器を給湯先まで搬送し、
前記器を給湯先まで搬送した後、前記第三開閉弁を閉状態にした状態で、前記第一開閉弁を開状態にすることによって、前記器内の溶湯を前記開口部から前記給湯先へ落下させる。 In the molten metal pumping device according to claim 5,
A molten metal pumping device that pumps molten metal using a vessel that can accommodate molten metal inside and has an opening serving as an inlet / outlet of the molten metal formed at the bottom,
The vessel;
A supply unit that communicates with the inside of the vessel and supplies pressurized gas into the vessel; an open state that allows communication between the supply unit and the inside of the vessel; and communication between the supply unit and the inside of the vessel. A pressurizing means having a first on-off valve capable of switching a closed closed state;
An intake portion that communicates with the inside of the vessel and sucks gas from the inside of the vessel, an open state that allows communication between the intake portion and the inside of the vessel, and a communication between the intake portion and the inside of the vessel is blocked. A pressure reducing means having a third on-off valve capable of switching a closed state;
Conveying means for conveying the vessel;
The first on-off valve, the third on-off valve, and a control means connected to the conveying means,
The control means includes
While the first on-off valve is in the open state and the third on-off valve is in the closed state, while the pressurized gas from the supply unit is ejected from the opening of the vessel, the container is Descend and immerse in molten metal,
With the vessel immersed in the molten metal, the first on-off valve is closed, and the third on-off valve is opened to suck the molten metal into the vessel from the opening.
With the molten metal sucked into the vessel, the first on-off valve and the third on-off valve are closed, and the gas in the vessel is shut off from the outside air, and the vessel is connected to the hot water supply destination. Transport to
After the vessel is transported to the hot water supply destination, the molten metal in the vessel is transferred from the opening to the hot water supply destination by opening the first open / close valve with the third open / close valve closed. Drop it.

請求項６に記載の溶湯汲出装置においては、
前記供給部が供給する加圧気体は、加圧不活性ガスである。 In the molten metal pumping device according to claim 6,
The pressurized gas supplied by the supply unit is a pressurized inert gas.

本発明によれば、器の溶湯への浸漬時で、器の開口部が溶湯の液面を通過するときに、溶湯の液面に浮遊している異物が開口部から器内に侵入することを防止できる。   According to the present invention, when the vessel is immersed in the molten metal and the opening of the vessel passes through the liquid level of the molten metal, foreign matter floating on the molten metal surface enters the vessel from the opening. Can be prevented.

本発明に係る溶湯汲出装置の第一実施形態である溶湯汲出装置の切断端面図である。It is a cut end view of the molten metal pumping apparatus which is 1st embodiment of the molten metal pumping apparatus which concerns on this invention. （ａ）は加圧不活性ガスを器の開口部から噴出させながら、器を溶湯に浸漬した状態を示す図であり、（ｂ）は溶湯を器内に開口部から吸引した状態を示す図である。(A) is a figure which shows the state which immersed the apparatus in the molten metal, spouting a pressurized inert gas from the opening part of a container, (b) is a figure which shows the state which attracted | sucked the molten metal in the apparatus from the opening part It is. （ａ）は器を溶湯から引き上げた状態を示す図であり、（ｂ）は器を給湯先まで搬送した後に、器内の溶湯を給湯先に供給している状態を示す図である。(A) is a figure which shows the state which pulled up the container from the molten metal, (b) is a figure which shows the state which supplies the molten metal in a container to the hot water supply destination, after conveying a device to the hot water supply destination. 溶湯汲出時における第一、第二開閉弁の開閉状態を示す表である。It is a table | surface which shows the opening / closing state of the 1st, 2nd on-off valve at the time of molten metal drawing. （ａ）は溶湯汲出装置の第二実施形態の切断端面図であり、（ｂ）は溶湯汲出時における第一、第二、第三開閉弁の開閉状態を示す表である。(A) is a cutting | disconnection end elevation of 2nd embodiment of a molten metal pumping apparatus, (b) is a table | surface which shows the open / closed state of the 1st, 2nd, 3rd on-off valve at the time of molten metal pumping. （ａ）は溶湯汲出装置の第三実施形態の切断端面図であり、（ｂ）は溶湯汲出時における第一、第三開閉弁の開閉状態を示す表である。(A) is a cutting | disconnection end elevation of 3rd embodiment of a molten metal pumping apparatus, (b) is a table | surface which shows the open / closed state of the 1st, 3rd on-off valve at the time of molten metal pumping.

以下に、本発明に係る溶湯汲出装置の第一実施形態である溶湯汲出装置１０について、図面を参照して説明する。   Below, the molten metal pumping apparatus 10 which is 1st embodiment of the molten metal pumping apparatus which concerns on this invention is demonstrated with reference to drawings.

溶湯汲出装置１０は、溶湯槽２内に貯溜される溶湯（例えば、アルミ溶湯）１の汲み出しを行うための装置である。溶湯汲出装置１０は、器１１を用いて溶湯１の汲み出しを行う。
図１に示すように、器１１は、側面、上面、および底面に囲まれた内部空間を有した中空形状に形成され、溶湯１を内部に収容可能に構成されている。器１１の底面には、溶湯１の出入口となる開口部１１ａが形成され、上面には、二つの孔１１ｂ・１１ｃが形成されている。つまり、器１１は、開口部１１ａが下端部に位置し、孔１１ｂ・１１ｃが上端部に位置する姿勢で保持されている。 The molten metal pumping device 10 is a device for pumping a molten metal (for example, aluminum molten metal) 1 stored in the molten metal tank 2. The molten metal pumping apparatus 10 pumps the molten metal 1 using the vessel 11.
As shown in FIG. 1, the vessel 11 is formed in a hollow shape having an internal space surrounded by a side surface, an upper surface, and a bottom surface, and is configured to accommodate the molten metal 1 therein. On the bottom surface of the vessel 11, an opening 11a serving as an inlet / outlet of the molten metal 1 is formed, and on the top surface, two holes 11b and 11c are formed. That is, the container 11 is held in such a posture that the opening 11a is located at the lower end and the holes 11b and 11c are located at the upper end.

図１に示すように、溶湯汲出装置１０は、器１１と、加圧手段（加圧気体供給系統）１２と、連通手段（大気開放系統）１３と、搬送手段（不図示）と、制御手段（不図示）と、を備えている。   As shown in FIG. 1, a molten metal pumping apparatus 10 includes a vessel 11, a pressurizing means (pressurized gas supply system) 12, a communicating means (atmospheric release system) 13, a conveying means (not shown), and a control means. (Not shown).

加圧手段１２は、供給部１２ａと、第一開閉弁１２ｂと、を有している。
供給部１２ａは、加圧不活性ガス（Ａｒガス、Ｎ２ガス等）を噴出する。供給部１２ａには、第一配管１２ｃの一端が接続されている。第一配管１２ｃの他端は、器１１の上面に開口する第一孔１１ｂに接続されている。これにより、供給部１２ａは、第一配管１２ｃを介して器１１内に連通されており、第一配管１２ｃを通じて器１１内に加圧気体（加圧不活性ガス）を供給可能に構成されている。供給部１２ａが供給する加圧不活性ガスの圧力ＰＳは、後述する（１−１）において、器１１が溶湯１に浸漬されたときに、開口部１１ａに作用する溶湯１の圧力（ヘッド圧）ＰＨよりも高圧に構成されている（ＰＳ＞ＰＨ）。
第一配管１２ｃの途中部には、第一開閉弁１２ｂが設けられている。第一開閉弁１２ｂは、第一配管１２ｃを開閉可能に構成されている。第一開閉弁１２ｂが開状態にされるとき、第一配管１２ｃは開放されている状態になり、供給部１２ａと器１１内との連通が許容されている状態になる。これにより、供給部１２ａからの加圧不活性ガスが器１１内に供給されている状態になる。これに対し、第一開閉弁１２ｂが閉状態にされるとき、第一配管１２ｃは閉塞されている状態になり、供給部１２ａと器１１内との連通が遮断されている状態になる。これにより、供給部１２ａから器１１内への加圧不活性ガスの供給が遮断されている状態になる。 The pressurizing means 12 has a supply part 12a and a first on-off valve 12b.
Supply unit 12a for ejecting pressurized inert gas (Ar gas, N 2 gas, etc.). One end of a first pipe 12c is connected to the supply unit 12a. The other end of the first pipe 12 c is connected to a first hole 11 b that opens on the upper surface of the vessel 11. Thereby, the supply part 12a is connected in the container 11 via the 1st piping 12c, and it is comprised so that pressurized gas (pressurized inert gas) can be supplied in the container 11 through the 1st piping 12c. Yes. The pressure P S of the supply unit 12a supplies pressurized inert gas, at later (1-1), when the vessel 11 is immersed in the molten metal 1, a pressure of the molten metal 1 acting on the opening 11a (the head The pressure is higher than P H (P S > P H ).
A first on-off valve 12b is provided in the middle of the first pipe 12c. The first on-off valve 12b is configured to be able to open and close the first pipe 12c. When the first on-off valve 12b is opened, the first pipe 12c is opened, and communication between the supply unit 12a and the inside of the vessel 11 is allowed. Thereby, the pressurized inert gas from the supply part 12a will be in the state currently supplied in the container 11. FIG. On the other hand, when the first on-off valve 12b is closed, the first pipe 12c is closed, and communication between the supply unit 12a and the inside of the vessel 11 is blocked. As a result, the supply of pressurized inert gas from the supply unit 12a into the vessel 11 is blocked.

連通手段１３は、第二開閉弁１３ａを有している。
第二開閉弁１３ａは、器１１内と器１１外部（大気）とを連通する第二配管１３ｂの途中部に設けられている。第二配管１３ｂは、その一端が器１１の上面に開口する第二孔１１ｃに接続されており、その他端が大気に連通されている。第二開閉弁１３ａは、第二配管１３ｂを開閉可能に構成されている。第二開閉弁１３ａが開状態にされるとき、第二配管１３ｂは開放されている状態になり、器１１内と大気とが連通されている状態になる。これにより、器１１内の気圧が大気圧と等しくなる。これに対し、第二開閉弁１３ａが閉状態にされるとき、第二配管１３ｂは閉塞されている状態になり、器１１内と大気との連通が遮断されている状態になる。 The communication means 13 has a second on-off valve 13a.
The 2nd on-off valve 13a is provided in the middle part of the 2nd piping 13b which connects the inside of the device 11 and the outside of the device 11 (atmosphere). One end of the second pipe 13b is connected to a second hole 11c that opens to the upper surface of the vessel 11, and the other end communicates with the atmosphere. The second on-off valve 13a is configured to be able to open and close the second pipe 13b. When the second on-off valve 13a is opened, the second pipe 13b is opened, and the inside of the vessel 11 is communicated with the atmosphere. Thereby, the atmospheric pressure in the vessel 11 becomes equal to the atmospheric pressure. On the other hand, when the 2nd on-off valve 13a is made into a closed state, the 2nd piping 13b will be in the state obstruct | occluded, and it will be in the state from which the communication with the inside of the container 11 and air | atmosphere is interrupted | blocked.

前記搬送手段は、器１１を搬送するための装置であり、例えばロボットハンド、リンク機構等で構成されている。   The said conveyance means is an apparatus for conveying the container 11, for example, is comprised by the robot hand, the link mechanism, etc.

前記制御手段は、例えば、演算部（ＣＰＵ）、記憶部（ＨＤＤ、半導体メモリ等）等を備えたコンピュータで構成されている。前記制御手段は、第一開閉弁１２ｂに接続されており、第一開閉弁１２ｂの開閉動作を制御可能に構成されている。また、前記制御手段は、第二開閉弁１３ａに接続されており、第二開閉弁１３ａの開閉動作を制御可能に構成されている。また、前記制御手段は、前記搬送手段に接続されており、前記搬送手段の動作を制御可能に構成されている。   The control means is composed of, for example, a computer including a calculation unit (CPU), a storage unit (HDD, semiconductor memory, etc.) and the like. The said control means is connected to the 1st on-off valve 12b, and is comprised so that control of the opening / closing operation | movement of the 1st on-off valve 12b is possible. Moreover, the said control means is connected to the 2nd on-off valve 13a, and is comprised so that control of the on-off operation of the 2nd on-off valve 13a is possible. Further, the control means is connected to the transport means and is configured to be able to control the operation of the transport means.

以下では、溶湯汲出装置１０が溶湯槽２内の溶湯１の汲み出しを行うときの手順（１−１）〜（１−４）について説明する。
なお、以下の（１−１）〜（１−４）において、溶湯汲出装置１０（前記制御手段）は、前記搬送手段により、器１１の開口部１１ａが下方を向くとともに、孔１１ｂ・１１ｃが上方を向くように器１１を保持した状態で、溶湯槽２内の溶湯１の汲み出しを行うこととする。 Below, the procedure (1-1)-(1-4) when the molten metal pumping apparatus 10 pumps the molten metal 1 in the molten metal tank 2 is demonstrated.
In the following (1-1) to (1-4), the molten metal pumping device 10 (the control means) is configured so that the opening 11a of the vessel 11 faces downward and the holes 11b and 11c are formed by the conveying means. It is assumed that the molten metal 1 in the molten metal tank 2 is pumped out while the vessel 11 is held so as to face upward.

（１−１）図１に示すように、前記制御手段は、前記搬送手段により器１１を溶湯槽２内の溶湯１の上方に配置する。
そして、図２（ａ）および図４に示すように、前記制御手段は、第一開閉弁１２ｂを開状態にし、かつ、第二開閉弁１３ａを閉状態にすることによって供給部１２ａからの加圧不活性ガスを器１１内に供給する。不活性ガスが供給される器１１は、開口部１１ａから不活性ガスを噴出させながら、前記搬送手段により下降され、その底部側が溶湯１に浸漬される。内部に不活性ガスが供給された状態で底部側が溶湯１に浸漬された器１１においては、底部に開口する開口部１１ａから、溶湯１内に不活性ガスが噴出することとなる（バブリング）。なお、前記制御手段は、前記搬送手段により器１１（開口部１１ａ）を溶湯１に浸漬するとき、開口部１１ａを深さＨの位置まで沈めることとし、このときに開口部１１ａに作用する溶湯１の圧力（ヘッド圧）をＰＨとする。
上記したように、供給部１２ａが供給する加圧不活性ガスの圧力ＰＳは、器１１が溶湯１に浸漬されたときに、開口部１１ａに作用する溶湯１の圧力ＰＨよりも高圧に構成されている（ＰＳ＞ＰＨ）。開口部１１ａに作用する溶湯１の圧力ＰＨは器１１の外部から内部へ向けて作用する。また、前記加圧不活性ガスの圧力ＰＳは、開口部１１ａにおいて、器１１の内部から外部へ向けて作用する。
これにより、前記制御手段が前記搬送手段により器１１を溶湯１に浸漬するときに、供給部１２ａからの加圧不活性ガスを器１１の開口部１１ａから噴出させながら浸漬することが可能となっている。 (1-1) As shown in FIG. 1, the said control means arrange | positions the container 11 above the molten metal 1 in the molten metal tank 2 by the said conveyance means.
Then, as shown in FIGS. 2 (a) and 4, the control means opens the first on-off valve 12b and closes the second on-off valve 13a, thereby adding from the supply section 12a. A pressure inert gas is supplied into the vessel 11. The vessel 11 to which the inert gas is supplied is lowered by the conveying means while injecting the inert gas from the opening 11a, and the bottom side thereof is immersed in the molten metal 1. In the vessel 11 in which the bottom side is immersed in the molten metal 1 in a state where the inert gas is supplied to the inside, the inert gas is ejected into the molten metal 1 from the opening 11a that opens to the bottom (bubbling). The control means immerses the container 11 (opening 11a) in the molten metal 1 by the conveying means, and sinks the opening 11a to a position of a depth H. At this time, the molten metal acting on the opening 11a. 1 of pressure (head pressure) and P H.
As described above, the pressure P S of pressurized inert gas supplied supply portion 12a, when the vessel 11 is immersed in the molten metal 1, the pressure higher than the pressure P H of the molten metal 1 acting on the opening 11a (P S > P H ). The pressure P H of the molten metal 1 acting on the opening 11a acts toward the inside from the outside of the vessel 11. Further, the pressure P S of the pressurized inert gas, in the opening 11a, acting toward the inside of the vessel 11 to the outside.
Thereby, when the said control means immerses the container 11 in the molten metal 1 by the said conveyance means, it becomes possible to immerse, pressing the pressurization inert gas from the supply part 12a from the opening part 11a of the container 11. FIG. ing.

（１−２）図２（ｂ）および図４に示すように、器１１の下側が溶湯１に浸漬されている状態で、前記制御手段は、第一開閉弁１２ｂを閉状態にし、かつ、第二開閉弁１３ａを開状態にする。これにより、器１１内の気圧が大気圧まで低下していき、その結果、開口部１１ａから器１１内に溶湯１が吸引される。   (1-2) As shown in FIG. 2 (b) and FIG. 4, in a state where the lower side of the vessel 11 is immersed in the molten metal 1, the control means closes the first on-off valve 12b, and The second on-off valve 13a is opened. Thereby, the atmospheric | air pressure in the container 11 falls to atmospheric pressure, As a result, the molten metal 1 is attracted | sucked in the container 11 from the opening part 11a.

（１−３）図３（ａ）および図４に示すように、前記制御手段は、器１１内に溶湯１が吸引された状態で、第一開閉弁１２ｂおよび第二開閉弁１３ａを閉状態にして、前記搬送手段により器１１を溶湯槽２から引き上げて、さらに給湯先（例えば、ダイカスト機）３まで搬送する。
このとき、器１１内は溶湯１と不活性ガスとで満たされており、器１１内の開口部１１ａ側（底部側）には溶湯１が存在しており、器１１内の上部側には不活性ガスが存在している。また、器１１内の不活性ガスは、第一開閉弁１２ｂおよび第二開閉弁１３ａが閉状態にされていることによって、外気から遮断されている状態となっている。つまり、器１１内の不活性ガスが充満している空間は、第一開閉弁１２ｂおよび第二開閉弁１３ａが閉状態にされ、開口部１１ａが器１１内の溶湯１により閉じられることにより密閉された状態となる。
したがって、器１１内の溶湯１は、大気と器１１内の不活性ガスとの気圧差等によって器１１内の開口部１１ａ側に存在している状態を維持されている。つまり、器１１は、内部に溶湯１を保持した状態で給湯先３まで搬送される。 (1-3) As shown in FIGS. 3A and 4, the control means closes the first on-off valve 12b and the second on-off valve 13a in a state where the molten metal 1 is sucked into the vessel 11. Then, the container 11 is pulled up from the molten metal tank 2 by the conveying means and further conveyed to the hot water supply destination (for example, die casting machine) 3.
At this time, the inside of the vessel 11 is filled with the molten metal 1 and the inert gas, the molten metal 1 exists on the opening 11a side (bottom side) in the vessel 11, and the upper side in the vessel 11 exists on the upper side. Inert gas is present. In addition, the inert gas in the vessel 11 is in a state of being blocked from outside air by the first on-off valve 12b and the second on-off valve 13a being closed. That is, the space filled with the inert gas in the vessel 11 is sealed by closing the first on-off valve 12b and the second on-off valve 13a and closing the opening 11a with the molten metal 1 in the vessel 11. It will be in the state.
Therefore, the molten metal 1 in the vessel 11 is maintained in a state in which it exists on the opening 11a side in the vessel 11 due to a difference in atmospheric pressure between the atmosphere and the inert gas in the vessel 11. That is, the vessel 11 is transported to the hot water supply destination 3 with the molten metal 1 held therein.

（１−４）図３（ｂ）および図４に示すように、前記制御手段は、前記搬送手段により器１１を給湯先３まで搬送した後、第一開閉弁１２ｂを開状態にして、供給部１２ａからの加圧不活性ガスを器１１内に供給し、器１１内の気圧を上昇させる。これにより、器１１内の溶湯１を開口部１１ａから給湯先３へ落下させる。または、前記制御手段は、第二開閉弁１３ａを開状態にして、器１１内を大気に開放し、器１１内の気圧を大気圧まで上昇させる。これにより、器１１内の溶湯１を開口部１１ａから給湯先３へ落下させる。なお、前記制御手段は、第一開閉弁１２ｂおよび第二開閉弁１３ａを開状態にすることによって、器１１内の溶湯１を開口部１１ａから給湯先３へ落下させるように構成してもよい。   (1-4) As shown in FIG. 3 (b) and FIG. 4, after the controller 11 has transported the vessel 11 to the hot water supply 3 by the transport means, the first on-off valve 12b is opened and supplied. The pressurized inert gas from the section 12a is supplied into the vessel 11 and the atmospheric pressure in the vessel 11 is raised. Thereby, the molten metal 1 in the container 11 is dropped to the hot water supply destination 3 from the opening part 11a. Or the said control means opens the 2nd on-off valve 13a, opens the inside of the container 11 to air | atmosphere, and raises the atmospheric pressure in the container 11 to atmospheric pressure. Thereby, the molten metal 1 in the container 11 is dropped to the hot water supply destination 3 from the opening part 11a. The control means may be configured to drop the molten metal 1 in the vessel 11 from the opening portion 11a to the hot water supply destination 3 by opening the first on-off valve 12b and the second on-off valve 13a. .

以上のように上記（１−１）において、溶湯汲出装置１０は、器１１を溶湯１に浸漬するときに、加圧不活性ガスを器１１の開口部１１ａから噴出させる。
これにより、器１１の溶湯１への浸漬時で、開口部１１ａが溶湯１の液面を通過するときに、溶湯１の液面に浮遊している異物４が開口部１１ａから器１１内に侵入することを防止できる。
また、器１１が溶湯１に浸漬されるときに、加圧不活性ガスが開口部１１ａから噴出されることとなるため、溶湯１の液面下では、溶湯１内に混入している異物が攪拌されて、開口部１１ａから噴出される泡（加圧不活性ガス）とともに溶湯１の液面へと浮上していき、溶湯１の清浄化処理（バブリング清浄）が実施されることとなる。
したがって、上記（１−２）において、器１１内に溶湯１を吸引するときに、溶湯１内に混入している異物が開口部１１ａから器１１内に侵入することを抑制できる。
また、溶湯汲出装置１０は、溶湯１の汲み出しを行う毎に、加圧不活性ガスで溶湯１のバブリング清浄を行うことになるので、溶湯１の清浄度を高いレベルで安定させることができる。また、溶湯１の清浄化処理を行うための装置を別途用意する必要がなくなる。 As described above, in (1-1), the molten metal pumping apparatus 10 causes the pressurized inert gas to be ejected from the opening 11 a of the container 11 when the container 11 is immersed in the molten metal 1.
Thereby, when the opening 11a passes through the liquid surface of the molten metal 1 when the container 11 is immersed in the molten metal 1, the foreign matter 4 floating on the liquid surface of the molten metal 1 enters the container 11 from the opening 11a. Intrusion can be prevented.
In addition, when the vessel 11 is immersed in the molten metal 1, the pressurized inert gas is ejected from the opening 11 a, so that foreign matters mixed in the molten metal 1 are below the liquid level of the molten metal 1. The liquid is agitated and floats to the liquid surface of the molten metal 1 together with bubbles (pressurized inert gas) ejected from the opening portion 11a, and the molten metal 1 is subjected to a cleaning process (bubbling cleaning).
Therefore, in the above (1-2), when the molten metal 1 is sucked into the vessel 11, it is possible to suppress the foreign matter mixed in the molten metal 1 from entering the vessel 11 through the opening 11 a.
Moreover, since the molten metal pumping apparatus 10 performs bubbling cleaning of the molten metal 1 with the pressurized inert gas every time the molten metal 1 is pumped, the cleanliness of the molten metal 1 can be stabilized at a high level. Moreover, it is not necessary to prepare a separate device for cleaning the molten metal 1.

また、上記（１−３）において、器１１の搬送時に、器１１内が溶湯１と不活性ガスとで満たされた状態となり、器１１が密封された状態となる。これにより、器１１の搬送時に、器１１内の溶湯１に異物（例えば、空気中を浮遊しているゴミ）が混入することを抑制できる。
また、上記（１−３）において、器１１の搬送時に、器１１内に存在している気体が不活性ガスで構成されている状態となるので、器１１内の溶湯１が酸化して異物となることを抑制できる。 In (1-3) above, when the container 11 is transported, the inside of the container 11 is filled with the molten metal 1 and the inert gas, and the container 11 is sealed. Thereby, it can suppress that a foreign material (for example, the dust which floats in the air) mixes in the molten metal 1 in the container 11 at the time of conveyance of the container 11.
Further, in (1-3) above, when the container 11 is transported, the gas present in the container 11 is composed of an inert gas. Can be suppressed.

［第二実施形態］
以下に、本発明に係る溶湯汲出装置の第二実施形態である溶湯汲出装置２０について、図面を参照して説明する。
なお、溶湯汲出装置２０について、溶湯汲出装置１０と同様の部材に対しては同一符号を付し、詳細な説明およびそれに付随する効果等の記載は省略する。 [Second Embodiment]
Below, the molten metal pumping apparatus 20 which is 2nd embodiment of the molten metal pumping apparatus which concerns on this invention is demonstrated with reference to drawings.
In addition, about the molten metal pumping apparatus 20, the same code | symbol is attached | subjected to the member similar to the molten metal pumping apparatus 10, and description of the detailed description and the effect accompanying it is abbreviate | omitted.

図５（ａ）に示すように、溶湯汲出装置２０は、器１１と、加圧手段１２と、連通手段１３と、減圧手段１４と、前記搬送手段（不図示）と、前記制御手段（不図示）と、を備えている。   As shown in FIG. 5 (a), the molten metal pumping device 20 includes a vessel 11, a pressurizing means 12, a communicating means 13, a decompressing means 14, the transport means (not shown), and the control means (not shown). (Shown).

減圧手段１４は、吸気部（ポンプ１４ａ、および減圧タンク１４ｂ）と、第三開閉弁１４ｃと、を有している。
ポンプ１４ａと減圧タンク１４ｂとは、配管等を介して連通されている。減圧タンク１４ｂには第三配管１４ｄの一端が接続されている。第三配管１４ｄの他端は、第二配管１３ｂおける、器１１との接続箇所と、第二開閉弁１３ａの設置箇所との間の部分に接続されている。これにより、前記吸気部は、第三配管１４ｄおよび第二配管１３ｂを介して器１１内の底部と連通されている。
第三配管１４ｄの途中部には、第三開閉弁１４ｃが設けられている。第三開閉弁１４ｃは、第三配管１４ｄを開閉可能に構成されている。第三開閉弁１４ｃが開状態にされるとき、第三配管１４ｄが開放されている状態になり、前記吸気部と器１１内との連通が許容されている状態になる。これにより、器１１内の気体がポンプ１４ａの駆動力により減圧タンク１４ｂ内に吸引されている状態になる。これに対し、第三開閉弁１４ｃが閉状態にされるとき、第三配管１４ｄが閉塞されている状態になり、前記吸気部と器１１内との連通が遮断されている状態になる。これにより、前記吸気部（ポンプ１４ａおよび減圧タンク１４ｂ）による器１１内の気体の吸引が遮断されている状態になる。
第三開閉弁１４ｃには前記制御手段が接続されている。前記制御手段は、第三開閉弁１４ｃの開閉動作を制御可能に構成されている。 The decompression means 14 has an intake part (pump 14a and decompression tank 14b) and a third on-off valve 14c.
The pump 14a and the decompression tank 14b are communicated with each other through a pipe or the like. One end of a third pipe 14d is connected to the decompression tank 14b. The other end of the third pipe 14d is connected to a portion of the second pipe 13b between the connection location with the vessel 11 and the installation location of the second on-off valve 13a. Thereby, the said intake part is connected with the bottom part in the container 11 via the 3rd piping 14d and the 2nd piping 13b.
A third on-off valve 14c is provided in the middle of the third pipe 14d. The third on-off valve 14c is configured to be able to open and close the third pipe 14d. When the third on-off valve 14c is opened, the third pipe 14d is opened, and communication between the intake section and the inside of the vessel 11 is allowed. As a result, the gas in the vessel 11 is sucked into the decompression tank 14b by the driving force of the pump 14a. On the other hand, when the third on-off valve 14c is closed, the third pipe 14d is closed, and the communication between the intake section and the inside of the vessel 11 is blocked. Thereby, it will be in the state by which the suction | inhalation of the gas in the container 11 by the said intake part (pump 14a and pressure reduction tank 14b) was interrupted | blocked.
The control means is connected to the third on-off valve 14c. The control means is configured to be able to control the opening / closing operation of the third opening / closing valve 14c.

以下では、溶湯汲出装置２０が溶湯槽２内の溶湯１の汲み出しを行うときの手順（２−１）〜（２−４）について、図５（ｂ）を参照して説明する。   Below, the procedure (2-1)-(2-4) when the molten metal pumping apparatus 20 pumps the molten metal 1 in the molten metal tank 2 is demonstrated with reference to FIG.5 (b).

（２−１）前記制御手段は、前記搬送手段により器１１を溶湯槽２内の溶湯１の上方に配置した状態で、第一開閉弁１２ｂを開状態にし、かつ、第二開閉弁１３ａと第三開閉弁１４ｃを閉状態にすることによって供給部１２ａからの加圧不活性ガスを器１１内に供給する。不活性ガスが供給される器１１は、開口部１１ａから不活性ガスを噴出させながら、前記搬送手段により下降され、その底部側が溶湯１に浸漬される。内部に不活性ガスが供給された状態で底部側が溶湯１に浸漬された器１１においては、底部に開口する開口部１１ａから、溶湯１内に不活性ガスが噴出することとなる（バブリング）。   (2-1) The control means opens the first on-off valve 12b in a state where the container 11 is arranged above the molten metal 1 in the molten metal tank 2 by the conveying means, and the second on-off valve 13a The pressurized inert gas from the supply part 12a is supplied into the vessel 11 by closing the third on-off valve 14c. The vessel 11 to which the inert gas is supplied is lowered by the conveying means while injecting the inert gas from the opening 11a, and the bottom side thereof is immersed in the molten metal 1. In the vessel 11 in which the bottom side is immersed in the molten metal 1 in a state where the inert gas is supplied to the inside, the inert gas is ejected into the molten metal 1 from the opening 11a that opens to the bottom (bubbling).

（２−２）前記制御手段は、第一開閉弁１２ｂを閉状態にした状態で、第二開閉弁１３ａおよび第三開閉弁１４ｃのうちの少なくとも一方を開状態にすることによって、開口部１１ａから器１１内に溶湯１を吸引する。   (2-2) The control means opens the opening 11a by opening at least one of the second on-off valve 13a and the third on-off valve 14c with the first on-off valve 12b closed. The molten metal 1 is sucked into the vessel 11.

（２−３）前記制御手段は、第一開閉弁１２ｂ、第二開閉弁１３ａおよび第三開閉弁１４ｃを閉状態にすることによって器１１内の不活性ガスを外気から遮断した状態で、前記搬送手段により器１１を給湯先３まで搬送する。   (2-3) In the state where the inert gas in the vessel 11 is shut off from the outside air by closing the first on-off valve 12b, the second on-off valve 13a, and the third on-off valve 14c, The container 11 is conveyed to the hot water supply destination 3 by the conveying means.

（２−４）前記制御手段は、第三開閉弁１４ｃを閉状態にした状態で、第一開閉弁１２ｂおよび第二開閉弁１３ａの少なくとも一方を開状態にすることによって、器１１の溶湯１を開口部１１ａから給湯先３へ落下させる。   (2-4) The control means opens at least one of the first on-off valve 12b and the second on-off valve 13a in a state where the third on-off valve 14c is in the closed state. Is dropped to the hot water supply destination 3 from the opening 11a.

［第三実施形態］
以下に、本発明に係る溶湯汲出装置の第三実施形態である溶湯汲出装置３０について、図面を参照して説明する。
なお、溶湯汲出装置３０について、溶湯汲出装置１０および溶湯汲出装置２０と同様の部材に対しては同一符号を付し、詳細な説明およびそれに付随する効果等の記載は省略する。 [Third embodiment]
Below, the molten metal pumping apparatus 30 which is 3rd embodiment of the molten metal pumping apparatus which concerns on this invention is demonstrated with reference to drawings.
In addition, about the molten metal pumping apparatus 30, the same code | symbol is attached | subjected to the member similar to the molten metal pumping apparatus 10 and the molten metal pumping apparatus 20, and description of the detailed description and the incidental effect etc. is abbreviate | omitted.

図６（ａ）に示すように、溶湯汲出装置３０は、器１１と、加圧手段１２と、減圧手段１４と、前記搬送手段（不図示）と、前記制御手段（不図示）と、を備えている。   As shown in FIG. 6 (a), the molten metal pumping device 30 includes a vessel 11, a pressurizing means 12, a pressure reducing means 14, the transport means (not shown), and the control means (not shown). I have.

減圧手段１４は、前記吸気部（ポンプ１４ａ、および減圧タンク１４ｂ）と、第三開閉弁１４ｃと、を有している。
減圧タンク１４ｂには第三配管１４ｅの一端が接続されている。第三配管１４ｅの他端は、器１１の上面に開口する第二孔１１ｃに接続されている。これにより、前記吸気部は、第三配管１４ｅを介して器１１内の底部と連通されている。
第三配管１４ｅの途中部には、第三開閉弁１４ｃが設けられている。第三開閉弁１４ｃは、第三配管１４ｅを開閉可能に構成されている。第三開閉弁１４ｃが開状態にされるとき、第三配管１４ｅが開放されている状態になり、前記吸気部と器１１内との連通が許容されている状態になる。これにより、器１１内の気体がポンプ１４ａの駆動力により減圧タンク１４ｂ内に吸引されている状態になる。これに対し、第三開閉弁１４ｃが閉状態にされるとき、第三配管１４ｅが閉塞されている状態になり、前記吸気部と器１１内との連通が遮断されている状態になる。これにより、前記吸気部（ポンプ１４ａおよび減圧タンク１４ｂ）による器１１内の気体の吸引が遮断されている状態になる。 The decompression means 14 includes the intake section (pump 14a and decompression tank 14b) and a third on-off valve 14c.
One end of a third pipe 14e is connected to the decompression tank 14b. The other end of the third pipe 14 e is connected to a second hole 11 c that opens on the upper surface of the vessel 11. Thereby, the said intake part is connected with the bottom part in the container 11 via the 3rd piping 14e.
A third on-off valve 14c is provided in the middle of the third pipe 14e. The third on-off valve 14c is configured to be able to open and close the third pipe 14e. When the third on-off valve 14c is opened, the third pipe 14e is opened, and communication between the intake section and the inside of the vessel 11 is allowed. As a result, the gas in the vessel 11 is sucked into the decompression tank 14b by the driving force of the pump 14a. On the other hand, when the third on-off valve 14c is closed, the third pipe 14e is closed, and the communication between the intake section and the inside of the vessel 11 is blocked. Thereby, it will be in the state by which the suction | inhalation of the gas in the container 11 by the said intake part (pump 14a and pressure reduction tank 14b) was interrupted | blocked.

以下では、溶湯汲出装置３０が溶湯槽２内の溶湯１の汲み出しを行うときの手順（３−１）〜（３−４）について、図６（ｂ）を参照して説明する。   Below, the procedure (3-1)-(3-4) when the molten metal pumping apparatus 30 pumps out the molten metal 1 in the molten metal tank 2 is demonstrated with reference to FIG.6 (b).

（３−１）前記制御手段は、前記搬送手段により器１１を溶湯槽２内の溶湯１の上方に配置した状態で、第一開閉弁１２ｂを開状態にし、かつ、第三開閉弁１４ｃを閉状態にすることによって供給部１２ａからの加圧不活性ガスを器１１内に供給する。不活性ガスが供給される器１１は、開口部１１ａから不活性ガスを噴出させながら、前記搬送手段により下降され、その底部側が溶湯１に浸漬される。内部に不活性ガスが供給された状態で底部側が溶湯１に浸漬された器１１においては、底部に開口する開口部１１ａから、溶湯１内に不活性ガスが噴出することとなる（バブリング）。   (3-1) The control means opens the first on-off valve 12b and sets the third on-off valve 14c in a state where the container 11 is disposed above the molten metal 1 in the molten metal tank 2 by the conveying means. The pressurized inert gas from the supply part 12a is supplied into the container 11 by making it a closed state. The vessel 11 to which the inert gas is supplied is lowered by the conveying means while injecting the inert gas from the opening 11a, and the bottom side thereof is immersed in the molten metal 1. In the vessel 11 in which the bottom side is immersed in the molten metal 1 in a state where the inert gas is supplied to the inside, the inert gas is ejected into the molten metal 1 from the opening 11a that opens to the bottom (bubbling).

（３−２）前記制御手段は、第一開閉弁１２ｂを閉状態にし、かつ、第三開閉弁１４ｃを開状態にすることによって、開口部１１ａから器１１内に溶湯１を吸引する。   (3-2) The control means sucks the molten metal 1 into the vessel 11 from the opening 11a by closing the first on-off valve 12b and opening the third on-off valve 14c.

（３−３）前記制御手段は、第一開閉弁１２ｂおよび第三開閉弁１４ｃを閉状態にすることによって器１１内の不活性ガスを外気から遮断した状態で、前記搬送手段により器１１を給湯先３まで搬送する。   (3-3) The control means closes the first opening / closing valve 12b and the third opening / closing valve 14c to shut off the inert gas in the container 11 from the outside air, and the control means Transport to hot water supply destination 3.

（２−４）前記制御手段は、第三開閉弁１４ｃを閉状態にした状態で、第一開閉弁１２ｂを開状態にすることによって、器１１の溶湯１を開口部１１ａから給湯先３へ落下させる。   (2-4) The control means opens the first on-off valve 12b while the third on-off valve 14c is in the closed state, thereby moving the molten metal 1 of the vessel 11 from the opening 11a to the hot water supply destination 3. Drop it.

なお、上記（２−２）および（３−２）において、第三開閉弁１４ｃを開状態にして、器１１内を減圧手段１４で減圧することによって、器１１内に溶湯１を吸引する場合、溶湯１を器１１周辺の溶湯１の液面よりも高い位置まで吸引することが可能となる。   In the above (2-2) and (3-2), when the third on-off valve 14c is opened and the pressure inside the vessel 11 is reduced by the pressure reducing means 14, the molten metal 1 is sucked into the vessel 11. The molten metal 1 can be sucked up to a position higher than the liquid level of the molten metal 1 around the vessel 11.

１ 溶湯
３ 給湯先
１０・２０・３０ 溶湯汲出装置
１１ 器
１１ａ 開口部
１２ 加圧手段
１２ａ 供給部
１２ｂ 第一開閉弁
１３ 連通手段
１３ａ 第二開閉弁
１４ 減圧手段
１４ａ ポンプ
１４ｂ 減圧タンク
１４ｃ 第三開閉弁 DESCRIPTION OF SYMBOLS 1 Molten 3 Hot-water supply destination 10.20 / 30 Molten-pumping device 11 Apparatus 11a Opening part 12 Pressurization means 12a Supply part 12b First on-off valve 13 Communication means 13a Second on-off valve 14 Decompression means 14a Pump 14b Decompression tank 14c Third on-off valve

Claims (6)

溶湯を内部に収容可能であり、溶湯の出入口となる開口部が底部に形成された器を用いて、溶湯の汲み出しを行う溶湯汲出方法であって、
前記器内を加圧することによって前記開口部から加圧気体を噴出させながら、前記器を下降させて前記開口部を溶湯に浸漬する第一工程と、
前記器内を減圧することによって、前記開口部から前記器内に溶湯を吸引する第二工程と、
前記器内の気体を外気から遮断した状態で、前記器を給湯先まで搬送する第三工程と、
前記器内を加圧することによって、前記器内の溶湯を前記開口部から前記給湯先へ落下させる第四工程と、
を備える溶湯汲出方法。 A molten metal pumping method for pumping molten metal using a vessel that can accommodate molten metal inside and has an opening serving as an inlet / outlet of the molten metal formed at the bottom,
A first step of lowering the vessel and immersing the opening in the molten metal while jetting pressurized gas from the opening by pressurizing the inside of the vessel;
A second step of sucking molten metal into the vessel from the opening by depressurizing the vessel;
In a state where the gas in the vessel is shut off from the outside air, the third step of conveying the vessel to a hot water supply destination;
A fourth step of dropping the molten metal in the vessel from the opening to the hot water supply by pressurizing the vessel;
A method for pumping molten metal. 前記第一工程では、前記器内に加圧不活性ガスを供給することにより前記器内を加圧して、前記加圧不活性ガスを前記器の開口部から噴出させる、
請求項１に記載の溶湯汲出方法。 In the first step, the inside of the vessel is pressurized by supplying pressurized inert gas into the vessel, and the pressurized inert gas is ejected from the opening of the vessel.
The method for pumping molten metal according to claim 1. 溶湯を内部に収容可能であり、溶湯の出入口となる開口部が底部に形成された器を用いて、溶湯の汲み出しを行う溶湯汲出装置であって、
前記器と、
前記器内に連通され、前記器内に加圧気体を供給する供給部、ならびに、前記供給部と前記器内との連通を許容する開状態、および前記供給部と前記器内との連通を遮断する閉状態を切換可能な第一開閉弁、を有する加圧手段と、
前記器内と大気との連通を許容する開状態、および前記器内と大気との連通を遮断する閉状態を切換可能な第二開閉弁を有する連通手段と、
前記器を搬送する搬送手段と、
前記第一開閉弁、第二開閉弁、および搬送手段に接続される制御手段と、を備え、
前記制御手段は、
前記第一開閉弁を開状態にし、かつ、前記第二開閉弁を閉状態にすることによって前記供給部からの加圧気体を前記器の開口部から噴出させながら、前記搬送手段により前記器を下降させて溶湯に浸漬し、
前記器が溶湯に浸漬した状態で、前記第一開閉弁を閉状態にし、かつ、前記第二開閉弁を開状態にすることによって、前記開口部から前記器内に溶湯を吸引し、
前記器内に溶湯が吸引された状態で、前記第一開閉弁および第二開閉弁を閉状態にして、前記器内の気体を外気から遮断した状態で、前記搬送手段により前記器を給湯先まで搬送し、
前記器を給湯先まで搬送した後、前記第一開閉弁および第二開閉弁のうちの少なくとも一方を開状態にすることによって、前記器内の溶湯を前記開口部から前記給湯先へ落下させる、
溶湯汲出装置。 A molten metal pumping device that pumps molten metal using a vessel that can accommodate molten metal inside and has an opening serving as an inlet / outlet of the molten metal formed at the bottom,
The vessel;
A supply unit that communicates with the inside of the vessel and supplies pressurized gas into the vessel; an open state that allows communication between the supply unit and the inside of the vessel; and communication between the supply unit and the inside of the vessel. A pressurizing means having a first on-off valve capable of switching a closed closed state;
Communication means having a second on-off valve capable of switching between an open state allowing communication between the inside of the vessel and the atmosphere and a closed state blocking communication between the inside of the vessel and the atmosphere;
Conveying means for conveying the vessel;
The first on-off valve, the second on-off valve, and a control means connected to the conveying means,
The control means includes
While the first on-off valve is in the open state and the second on-off valve is in the closed state, while the pressurized gas from the supply section is ejected from the opening of the container, the container is Descend and immerse in molten metal,
With the vessel immersed in the molten metal, the first on-off valve is closed, and the second on-off valve is opened to suck the molten metal into the vessel from the opening,
With the molten metal sucked into the vessel, the first on-off valve and the second on-off valve are closed and the gas in the vessel is shut off from the outside air, and the vessel is connected to the hot water supply destination. Transport to
After conveying the vessel to the hot water supply destination, by opening at least one of the first on-off valve and the second on-off valve, the molten metal in the vessel is dropped from the opening to the hot water supply destination,
Molten metal pumping device. 溶湯を内部に収容可能であり、溶湯の出入口となる開口部が底部に形成された器を用いて、溶湯の汲み出しを行う溶湯汲出装置であって、
前記器と、
前記器内に連通され、前記器内に加圧気体を供給する供給部、ならびに、前記供給部と前記器内との連通を許容する開状態、および前記供給部と前記器内との連通を遮断する閉状態を切換可能な第一開閉弁、を有する加圧手段と、
前記器内と大気との連通を許容する開状態、および前記器内と大気との連通を遮断する閉状態を切換可能な第二開閉弁を有する連通手段と、
前記器内に連通され、前記器内から気体を吸引する吸気部、ならびに、前記吸気部と前記器内との連通を許容する開状態、および前記吸気部と前記器内との連通を遮断する閉状態を切換可能な第三開閉弁、を有する減圧手段と、
前記器を搬送する搬送手段と、
前記第一開閉弁、第二開閉弁、第三開閉弁、および搬送手段に接続される制御手段と、を備え、
前記制御手段は、
前記第一開閉弁を開状態にし、かつ、前記第二開閉弁と第三開閉弁を閉状態にすることによって前記供給部からの加圧気体を前記器の開口部から噴出させながら、前記搬送手段により前記器を下降させて溶湯に浸漬し、
前記器が溶湯に浸漬した状態で、前記第一開閉弁を閉状態にし、かつ、前記第二開閉弁および第三開閉弁のうちの少なくとも一方を開状態にすることによって、前記開口部から前記器内に溶湯を吸引し、
前記器内に溶湯が吸引された状態で、前記第一開閉弁、第二開閉弁および第三開閉弁を閉状態にして、前記器内の気体を外気から遮断した状態で、前記搬送手段により前記器を給湯先まで搬送し、
前記器を給湯先まで搬送した後、前記第三開閉弁を閉状態にした状態で、前記第一開閉弁および前記第二開閉弁の少なくとも一方を開状態にすることによって、前記器内の溶湯を前記開口部から前記給湯先へ落下させる、
溶湯汲出装置。 A molten metal pumping device that pumps molten metal using a vessel that can accommodate molten metal inside and has an opening serving as an inlet / outlet of the molten metal formed at the bottom,
The vessel;
A supply unit that communicates with the inside of the vessel and supplies pressurized gas into the vessel; an open state that allows communication between the supply unit and the inside of the vessel; and communication between the supply unit and the inside of the vessel. A pressurizing means having a first on-off valve capable of switching a closed closed state;
Communication means having a second on-off valve capable of switching between an open state allowing communication between the inside of the vessel and the atmosphere and a closed state blocking communication between the inside of the vessel and the atmosphere;
An intake portion that communicates with the inside of the vessel and sucks gas from the inside of the vessel, an open state that allows communication between the intake portion and the inside of the vessel, and a communication between the intake portion and the inside of the vessel is blocked. A pressure reducing means having a third on-off valve capable of switching a closed state;
Conveying means for conveying the vessel;
The first on-off valve, the second on-off valve, the third on-off valve, and a control means connected to the conveying means,
The control means includes
While the first on-off valve is in an open state and the second on-off valve and the third on-off valve are in a closed state, the transfer gas is ejected from the opening of the vessel while the pressurized gas from the supply unit is ejected. The vessel is lowered by means and immersed in the molten metal,
With the vessel immersed in the molten metal, the first on-off valve is closed, and at least one of the second on-off valve and the third on-off valve is opened, so that Aspirate the molten metal into the chamber,
With the molten metal sucked into the vessel, the first on-off valve, the second on-off valve and the third on-off valve are closed, and the gas in the vessel is shut off from the outside air by the conveying means. Transport the vessel to the hot water supply,
After transporting the vessel to the hot water supply destination, the molten metal in the vessel is opened by opening at least one of the first on-off valve and the second on-off valve in a state where the third on-off valve is closed. Is dropped from the opening to the hot water supply destination,
Molten metal pumping device. 溶湯を内部に収容可能であり、溶湯の出入口となる開口部が底部に形成された器を用いて、溶湯の汲み出しを行う溶湯汲出装置であって、
前記器と、
前記器内に連通され、前記器内に加圧気体を供給する供給部、ならびに、前記供給部と前記器内との連通を許容する開状態、および前記供給部と前記器内との連通を遮断する閉状態を切換可能な第一開閉弁、を有する加圧手段と、
前記器内に連通され、前記器内から気体を吸引する吸気部、ならびに、前記吸気部と前記器内との連通を許容する開状態、および前記吸気部と前記器内との連通を遮断する閉状態を切換可能な第三開閉弁、を有する減圧手段と、
前記器を搬送する搬送手段と、
前記第一開閉弁、第三開閉弁、および搬送手段に接続される制御手段と、を備え、
前記制御手段は、
前記第一開閉弁を開状態にし、かつ、前記第三開閉弁を閉状態にすることによって前記供給部からの加圧気体を前記器の開口部から噴出させながら、前記搬送手段により前記器を下降させて溶湯に浸漬し、
前記器が溶湯に浸漬した状態で、前記第一開閉弁を閉状態にし、かつ、前記第三開閉弁を開状態にすることによって、前記開口部から前記器内に溶湯を吸引し、
前記器内に溶湯が吸引された状態で、前記第一開閉弁および第三開閉弁を閉状態にして、前記器内の気体を外気から遮断した状態で、前記搬送手段により前記器を給湯先まで搬送し、
前記器を給湯先まで搬送した後、前記第三開閉弁を閉状態にした状態で、前記第一開閉弁を開状態にすることによって、前記器内の溶湯を前記開口部から前記給湯先へ落下させる、
溶湯汲出装置。 A molten metal pumping device that pumps molten metal using a vessel that can accommodate molten metal inside and has an opening serving as an inlet / outlet of the molten metal formed at the bottom,
The vessel;
A supply unit that communicates with the inside of the vessel and supplies pressurized gas into the vessel; an open state that allows communication between the supply unit and the inside of the vessel; and communication between the supply unit and the inside of the vessel. A pressurizing means having a first on-off valve capable of switching a closed closed state;
An intake portion that communicates with the inside of the vessel and sucks gas from the inside of the vessel, an open state that allows communication between the intake portion and the inside of the vessel, and a communication between the intake portion and the inside of the vessel is blocked. A pressure reducing means having a third on-off valve capable of switching a closed state;
Conveying means for conveying the vessel;
The first on-off valve, the third on-off valve, and a control means connected to the conveying means,
The control means includes
While the first on-off valve is in the open state and the third on-off valve is in the closed state, while the pressurized gas from the supply unit is ejected from the opening of the vessel, the container is Descend and immerse in molten metal,
With the vessel immersed in the molten metal, the first on-off valve is closed, and the third on-off valve is opened to suck the molten metal into the vessel from the opening.
With the molten metal sucked into the vessel, the first on-off valve and the third on-off valve are closed, and the gas in the vessel is shut off from the outside air, and the vessel is connected to the hot water supply destination. Transport to
After the vessel is transported to the hot water supply destination, the molten metal in the vessel is transferred from the opening to the hot water supply destination by opening the first open / close valve with the third open / close valve closed. Drop,
Molten metal pumping device. 前記供給部が供給する加圧気体は、加圧不活性ガスである、
請求項３〜請求項５のいずれか一項に記載の溶湯汲出装置。 The pressurized gas supplied by the supply unit is a pressurized inert gas.
The molten metal pumping-out apparatus as described in any one of Claims 3-5.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5555256U (en) * 1978-10-06 1980-04-14
JPH11291015A (en) * 1998-04-16 1999-10-26 Ube Ind Ltd Method for supplying molten metal and device for supplying molten metal
JP2001047217A (en) * 1999-08-09 2001-02-20 Ota Seisakusho:Kk Method for transferring molten metal and portable pump used for transfer thereof
JP2001047220A (en) * 1999-08-02 2001-02-20 Osamichi Nakada Molten metal vessel and sucking/exhausting method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5555256U (en) * 1978-10-06 1980-04-14
JPH11291015A (en) * 1998-04-16 1999-10-26 Ube Ind Ltd Method for supplying molten metal and device for supplying molten metal
JP2001047220A (en) * 1999-08-02 2001-02-20 Osamichi Nakada Molten metal vessel and sucking/exhausting method
JP2001047217A (en) * 1999-08-09 2001-02-20 Ota Seisakusho:Kk Method for transferring molten metal and portable pump used for transfer thereof

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