JP2020070719A - Suction type molten metal distribution device - Google Patents

Abstract

To provide a suction type molten metal distribution device which is capable of promptly moving a molten metal and further capable of improving a degree of freedom of a shape or a size of ladle by performing auxiliary suction of a siphon part from a supplied side.SOLUTION: The present invention relates to a suction type molten metal distribution device for distributing a molten metal via a siphon part 12. The siphon part 12 comprises: a first suction tube 21 in a one-end open shape including a lower end opening 21a which is immersed in the molten metal in a holding furnace 4 in a closed state, and defining a suction chamber in which a pressure can be reduced, between the first suction tube and the molten metal in the holding furnace 4; and a second suction tube 22 including a proximal end 22a coupled at a predetermined height position h1 of the first suction tube 21 and a distal end 22b which is inserted into a ladle 3 in the case of molten metal distribution and immersed in the molten metal in the ladle 3 in a closed state. The first suction tube 21 includes an exhaust port part 21c capable of exhausting air inside of a suction chamber 23 so as to increase a height of a liquid level L2a, in the suction chamber 23, of the molten metal in the holding furnace 4 into a predetermined range ha equal to or higher than the predetermined height position h1.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a suction type hot water distribution device, and for example, to a suction type hot water distribution device suitable for moving a molten metal for die casting between a ladle and a furnace such as a holding furnace.

  Molten metal such as aluminum alloy used for die casting is generally transferred from a central melting furnace to a ladle, from a ladle to a hand furnace or holding furnace (holding furnace well), and then to a die casting machine. Etc.

  In addition, the movement of molten metal in the past was to tilt the ladle with a lift or to discharge the molten metal by pressurizing the inside of the ladle when distributing the molten metal from the ladle to the hand furnace, holding furnace or melting furnace. Was done by. However, in the former case where the ladle is tilted, there is a risk that the gas in the molten metal will go out or the molten metal will scatter, and in the latter case where the ladle is pressurized, it is safer than the former, There was a problem that the molten metal was scattered at the end of the molten metal and the amount of gas in the molten metal was increased.

  Therefore, conventionally, a ladle that receives hot water from a central melting furnace or the like is provided with a siphon portion for pumping out the molten metal, and the inside of a small container located at the top of the siphon portion is vacuum sucked to deteriorate the characteristics of the molten metal. There has been proposed a liquid container that is designed to improve the handling safety without any problem (see, for example, Patent Document 1).

JP, 2005-161403, A

  However, even in the conventional siphon type hot water distribution apparatus as described above, when the difference in the liquid level between the supply side and the supply side becomes small, the pipe flow rate in the siphon portion decreases and the movement of the melt ( There was a problem that it took time to distribute hot water.

  Also, since the ladle was provided with a siphon section, the weight and cost of the ladle transported by lift vehicles and other cargo handling vehicles for hot water distribution increased, and the flexibility of the ladle shape and size was impaired. There was a problem that it would be.

  In view of this, the present invention enables suction of the siphon portion from the supply side to enable rapid movement of the molten metal, and further, suction type hot water distribution that can increase the degree of freedom in the shape and size of the ladle. The purpose is to provide a device.

  In order to achieve the above object, the suction-type hot water distribution device according to the present invention has a siphon part capable of pumping out the molten metal from one container storing the molten metal to the other container, In the suction type hot water distribution device, the siphon section has a lower end opening that is immersed in the molten metal in the one container in a closed state, and is located between the molten metal in the one container. A first suction pipe having an open end defining a suction chamber capable of depressurizing, a base end connected to a predetermined height position of the first suction pipe, and the first suction pipe inserted into the other container during the hot water distribution. And a second suction pipe having a tip end portion that is immersed in the molten metal in the other container in a closed state, the first suction pipe being in the suction chamber of the molten metal in the one container. Raise the liquid surface height within a specified range above the specified height position As characterized in that the suction chamber can be evacuated.

  With this configuration, in the present invention, auxiliary suction by decompression exhaust for producing the siphon effect can be performed from the second container side to which the molten metal moves, and the liquid level of the molten metal in the first container and the second container can be reduced. Even if the difference becomes small, it is possible to maintain a required molten metal moving speed by appropriately maintaining the difference in the liquid level of the molten metal inside and outside the suction pipe in the second container. Therefore, the molten metal can be moved quickly, and the suction type hot water distribution device can increase the degree of freedom in the shape and size of one of the containers.

  Of course, the hot water distribution work such as tilting one container such as a ladle is not required, and the gas in the one container is unlikely to leak to the outside, so the safety of the hot water distribution work can be secured.

  In the present invention, when the lower end opening of the first suction pipe is immersed in the molten metal in the other container in a closed state, the vertical height of the tip portion of the second suction pipe is the other. It is possible to have a configuration in which it is located vertically above the liquid level of the molten metal in the container. By doing so, it is possible to effectively exert the siphon effect that utilizes the difference in liquid level height between the supply side and the supply side, the melt transfer speed can be sufficiently increased, and the rapid movement of the melt is possible. Is possible.

  Further, the tip end portion of the second suction pipe during the hot water distribution may be arranged at the lower limit liquid level height near the inner bottom wall surface in the one container. By doing this, it is possible to reliably pump out substantially all of the molten metal in one of the containers.

  Further, when the liquid level of the molten metal in the other container in the suction chamber is raised above the predetermined height position beyond a predetermined range, the rise of the liquid level in the suction chamber is detected. The configuration may further include an abnormality detection unit. With this configuration, it is possible to detect an excessive increase in the molten metal moving speed due to the siphon effect of applying the negative pressure of the auxiliary suction as an excessive rise of the liquid level in the suction pipe, and to control the molten metal moving speed by controlling the pressure in the suction chamber. become.

  In the present invention, the cross-sectional area of the intake chamber in the first suction pipe is preferably larger than the cross-sectional area of the passage in the second suction pipe. With this configuration, the flow velocity in the second suction pipe is made higher than that in the first suction pipe while defining the suction chamber in the first suction pipe on the supply side, so that the proper exhaust in the second suction pipe is performed during hot water distribution. And it becomes possible to secure the required molten metal moving speed.

  Further, when the distal end portion of the second suction pipe is immersed in the molten metal in the one container in a closed state, an intermediate portion in the longitudinal direction of the second suction pipe is filled with the molten metal in the one container. It may be arranged vertically above the liquid level. With this configuration, the second suction pipe curved in a substantially inverted V shape can be inserted into and removed from one of the containers from above, which is quick and safe in combination with the above-described high moving speed of the molten metal in the second suction pipe. Hot water distribution work is possible.

  The suction type hot water distribution device according to the present invention has a siphon portion capable of pumping out the molten metal received in the ladle from the inside of the furnace on the supply side, and the molten metal is passed through the siphon portion to A suction type hot water distributor for distributing hot water from a ladle into the furnace on the supply side, wherein the siphon section has a lower end opening that is immersed in the molten metal in the furnace on the supply side in a closed state, A first suction pipe having an opening at one end that defines a suction chamber capable of decompressing with the molten metal in the furnace on the supply side; a base end connected to a predetermined height position of the first suction pipe; A second suction pipe having a tip portion that is inserted into the ladle during the hot water distribution and is immersed in the molten metal in the ladle in a closed state; and the first suction pipe is the supply target The height of the liquid level in the suction chamber of the molten metal in the side furnace to a predetermined range above the predetermined height position. It is characterized in that as a said suction chamber capable exhaust exhaust opening.

  With this configuration, in the present invention, auxiliary suction for producing the siphon effect can be performed from the supplied side, and even if the difference between the liquid surface levels of the molten metal on the supply side and the supplied side is small, suction on the supplied side is possible. By maintaining the difference in the liquid level of the molten metal inside and outside the pipe to an appropriate level, the required molten metal moving speed can be maintained. Therefore, the molten metal can be moved quickly and the suction type hot water distribution device can increase the degree of freedom of the shape and size of the ladle.

  In addition, since it is not necessary to attach a siphon to a ladle that needs to be transported by a cargo handling vehicle, the cost of manufacturing and transporting the ladle can be reduced, and the flexibility of the shape and size of the ladle is increased. Become.

  According to the present invention, since the auxiliary suction of the siphon portion from the supplied side is enabled, the molten metal can be moved quickly, and the suction type hot water distribution can increase the degree of freedom of the shape and size of the ladle. A device can be provided.

It is a schematic front sectional view of a suction type hot water distribution device according to an embodiment of the present invention. It is explanatory drawing of schematic structure of the die casting molding system containing the suction type hot water distribution apparatus which concerns on one Embodiment of this invention. It is a schematic front sectional drawing of the suction type hot water distribution apparatus which concerns on other embodiment of this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

(One embodiment)
1 and 2 show a schematic configuration of a suction type hot water distributing apparatus and a die casting molding system including the suction type hot water distributing apparatus according to an embodiment of the present invention.

  First, the configuration will be described.

  As shown in FIGS. 1 and 2, a die-cast molding system 1 including a suction type hot water distributor according to the present embodiment has a central melting furnace 2 that is a furnace on the supply side and a predetermined amount of metal from the central melting furnace 2. The ladle 3 (one container) capable of receiving molten metal (molten metal), the holding furnace 4 (the other container; another type of hand-held furnace may be used) on the supply side, and the molten metal from the holding furnace 4 It includes a die cast molding machine 5 for pouring the molten metal and a suction type hot water distribution device 10 having a siphon portion 12 capable of pumping out the molten metal in the ladle 3.

  The central melting furnace 2 is charged with a predetermined metal material for die casting, and stores, for example, a molten metal of a molten aluminum alloy (ADC material).

  The ladle 3 is a heat-resistant and fire-resistant container that receives and stores a predetermined amount of molten metal from the central melting furnace 2.

  As shown in FIG. 2, the ladle 3 that has received the molten metal from the central melting furnace 2 side is conveyed to the holding furnace 4 side by a cargo handling vehicle 8 such as a lift vehicle. Then, the molten metal in the ladle 3 is pumped out and distributed to the holding furnace 4 side by the suction type hot water distribution device 10 of the present embodiment which is detachably arranged on the holding furnace 4 side.

  The die-cast molding machine 5 can perform known die-cast molding in which the molten metal transferred from the holding furnace 4 is filled in the cavity of the mold and pressurized to perform pressure casting.

  The suction type hot water distribution device 10 has a support frame 11 that can be lifted or fixed, and a siphon portion 12 that can pump out the molten metal in the ladle 3 while being supported by the support frame 11. The molten metal from inside 3 is distributed from the ladle 3 into the holding furnace 4 on the supplied side via the siphon 12.

  The siphon portion 12 is configured to include a first suction pipe 21 and a second suction pipe 22 each made of a refractory material.

  As shown in one cross section in FIG. 1, the first suction pipe 21 extending in the vertical direction has a lower end opening 21a that is immersed in the molten metal in the holding furnace 4 on the supply side in a closed state, and also on the supply side. It has an open-ended shape which defines a suction chamber 23 capable of decompressing with the molten metal in the holding furnace 4. Here, the installation height of the lower end opening 21a is arranged vertically below the lower limit liquid level L1 at which hot water can be distributed in the holding furnace 4.

  Further, as shown in a vertical cross section in FIG. 1, the second suction pipe 22 has a base end 22a connected to a predetermined height position h1 from the lower end of the first suction pipe 21 and a ladle 3 at the time of hot water distribution. It has a tip portion 22b that is inserted and immersed in the molten metal in the ladle 3 in a closed state, and an intermediate portion 22c that has a curved shape that is convex upward in the vertical direction like an inverted V shape.

  Further, on the upper end side of the first suction pipe 21, an exhaust port portion 21c capable of exhausting the inside of the suction chamber 23 is provided as a part of a passage penetrating the ceiling wall portion 21d.

  The exhaust port portion 21c constitutes an exhaust means for sucking and exhausting so as to reduce the pressure in the suction chamber 23 in cooperation with the vacuum pump 24 integrally supported by the support frame 11 with the first suction pipe 21. The height of the substantially circular liquid surface L2a in the suction chamber 23 for the molten metal in the holding furnace 4 can be raised within a predetermined range ha above the predetermined height position h1 and up to the rising limit liquid surface height Lex. You can do it.

  The predetermined height position h1 is arranged at a pulling height h2 from the upper limit liquid level L2 corresponding to the full state of the molten metal in the holding furnace 4.

  Further, the height of the liquid surface L2a in the suction chamber 23 that is pulled up within the predetermined range ha above the predetermined height position h1 is preferably such that the internal passage 22d is at the base end 22a of the second suction pipe 22. It is above the height range that opens to the 23 side. That is, it is preferable that the pulling height of the liquid surface L2a be set so that the internal passage 22d on the base end 22a side of the second suction pipe 22 is surely closed by the molten metal.

  Furthermore, when the lower end opening 21 a of the first suction pipe 21 is immersed in a closed state below the liquid surface of the molten metal in the holding furnace 4, the vertical height of the tip 22 b of the second suction pipe 22 is equal to the vertical height of the ladle 3. The support height of the ladle 3 at the time of hot water distribution is set so as to substantially match the lower limit liquid level L3 near the inner bottom surface 3b.

  The lower limit liquid level L3 during hot water distribution here is the lower limit liquid level height position in the ladle 3 corresponding to the minimum height difference h3 between the liquid level L2 and L3 in FIG. It is located above the upper limit liquid level L2 of the molten metal in 4 in the vertical direction. Therefore, the tip portion 22b of the second suction pipe is located vertically above the level of the molten metal level L2 in the holding furnace 4, and from the lower limit of the molten metal level L3 in the ladle 3. It is arranged at a height in the vertical direction near the lower limit of the molten metal storage height region up to the upper limit liquid level L4.

  On the other hand, on the upper end side of the first suction pipe 21, the abnormality detection electrode 31 is supported in an insulated state so as to project downward in the vertical direction from the ceiling side of the suction chamber 23.

  This abnormality detection electrode 31 is provided when the height of the liquid surface L2a in the suction chamber 23 of the molten metal in the holding furnace 4 is pulled upward from a predetermined height position h1 beyond a predetermined range ha in the height direction. The first suction pipe 21 comes into contact with the molten metal to conduct electricity, and cooperates with an abnormality detection circuit (not shown) to prevent an excessive rise in the liquid level L2a in the suction chamber 23 (a sudden change in the hot water distribution speed). It is detected as an abnormality.

  That is, in this embodiment, since the negative pressure due to the exhaust (auxiliary suction) in the suction chamber 23 through the exhaust port portion 21c and the atmospheric pressure applied to the melting and the like in the holding furnace 4 are large, the liquid When the molten metal moving speed based on the siphon effect using the level difference between the surface levels L2 and L3 is excessively increased, the abnormality detection means including the abnormality detection electrode 31 detects the excessive rise of the liquid level L2a in the first suction pipe 21. Based on the abnormality detection signal, the molten metal moving speed can be controlled by controlling the exhaust in the suction chamber 23 (pressure control by increasing / decreasing the exhaust speed, or blocking and opening the exhaust passage).

  In addition, the cross-sectional area (passage cross-sectional area) of the suction chamber 23 in the first suction pipe 21 is larger than the cross-sectional area of the passage in the second suction pipe, and is the first of the holding furnace 4 side to which the molten metal is moved. While defining the suction chamber 23 in the suction pipe 21, by increasing the flow rate of the melt in the second suction pipe 22 at a constant rate than in the first suction pipe 21, the speed in the second suction pipe 22 is increased. In addition, it is configured so that reliable exhaust and securement of a required hot water distribution speed can be realized.

  In the present embodiment, when the distal end portion 22b of the second suction pipe 22 is immersed in the molten metal in the ladle 3 in a closed state, the middle portion 22c in the longitudinal direction of the second suction pipe 22 is further changed to the ladle 3. It is arranged above the upper limit liquid level height L2 of the molten metal in the vertical direction, and the second suction pipe 22 curved in a substantially inverted V shape can be inserted into and removed from the ladle 3 from above. In combination with the above-mentioned high moving speed of molten metal, quick and safe hot water distribution work can be performed.

  Next, the operation will be described.

  In the suction-type hot water distribution device 10 of the present embodiment configured as described above and the die-cast molding system including the suction-type hot water distribution device 10, a stable siphon is passed through the suction chamber 23 arranged on the side of the holding furnace 4 to which the molten metal is moved. Auxiliary suction for producing an effect is possible.

  Therefore, between the ladle 3 on the supply side where the melt level is relatively high and the holding furnace 4 on the supply side where the melt level is relatively low, both melts are placed. Even if the difference in the liquid level becomes small, exhaust gas that maintains the difference in the liquid level of the molten metal inside the holding furnace 4 inside and outside the first suction pipe 21 (corresponding to the height h2 at the start of hot water distribution) appropriately Only by performing control (control of suction negative pressure), the required molten metal moving speed can be maintained. As a result, the suction type hot water distribution device 10 is capable of rapidly moving the molten metal from the ladle 3 into the holding furnace 4 and increasing the degree of freedom of the shape and size of the ladle 3.

  Further, the hot water distribution work of tilting the ladle 3 as in the past is not required, and the gas in the ladle 3 is unlikely to leak to the outside, so that the safety of the hot water distribution work can be secured. In addition, if the siphon portion 12 is arranged in advance in the holding furnace 4 on the supply side, it is not necessary to mount the siphon portion 12 on each ladle 3 that needs to be transported by a cargo handling vehicle or the like. Therefore, it is possible to reduce the manufacturing cost and the transportation cost of the ladle 3 that is relatively large in number with respect to the holding furnace 4 on the supply side, and the flexibility of the shape and size of the ladle 3 is increased.

  In the present embodiment, the vertical height of the tip portion 22b of the second suction pipe 22 is further positioned vertically above the liquid level L2 of the molten metal in the holding furnace 4 outside the first suction pipe 21. Therefore, it is possible to effectively exert the siphon effect that utilizes the difference in the liquid level height of the molten metal on the supply side and the supplied side, and it is possible to sufficiently increase the molten metal moving speed and to quickly distribute the molten metal. Becomes

  Moreover, since the tip end portion 22b of the second suction pipe during hot water distribution substantially coincides with the lower limit liquid level height L3 of the molten metal in the ladle 3, almost the entire amount of the molten metal in the ladle 3 is reliably pumped out. be able to.

  In addition, in this embodiment, since the abnormality detection electrode 31 that detects an abnormal rise in the liquid level in the suction chamber 23 is provided, it is based on the difference in height between the molten metal liquid level on the ladle 3 side and the holding furnace 4 side. The excessive increase in the speed of the molten metal movement due to the siphon effect can be controlled by controlling the negative pressure acting on the molten metal in the suction chamber 23.

  Moreover, in the present embodiment, since the passage cross-sectional area of the suction chamber 23 in the first suction pipe 21 is larger than the cross-sectional area of the internal passage 22d of the second suction pipe 22, the suction chamber 23 inside the first suction pipe 21 is supplied. While defining the suction chamber 23, the in-pipe flow velocity in the second suction pipe 22 can be made higher than that in the first suction pipe 21, and at the time of hot water distribution, accurate exhaustion of the second suction pipe 22 and required molten metal. It is possible to secure the moving speed.

  Further, since the intermediate portion 22c in the lengthwise direction of the second suction pipe 22 is arranged vertically above the upper limit liquid level L4 of the molten metal in the ladle 3, it is curved in a substantially inverted V shape. The second suction pipe 22 can be inserted into and removed from the ladle 3 from above, and in combination with the above-mentioned high movement speed of the molten metal in the second suction pipe 22, a quick and safe hot water distribution operation can be performed. You can

  As described above, in the present embodiment, auxiliary suction for producing the siphon effect can be performed from the supplied side, and even if the difference in the liquid level between the supply side and the supplied side is small, the supplied side is reduced. By keeping the difference in the liquid level of the molten metal inside and outside the suction pipe at an appropriate level, it is possible to maintain a required molten metal moving speed, and it is possible to move the molten metal quickly.

  Further, since it is not necessary to attach a siphon section to the ladle 3 which is required to be transported by a cargo handling vehicle or the like, manufacturing cost of the ladle 3 and transportation cost can be reduced, and flexibility of the shape and size of the ladle 3 is also provided. Will increase.

  Therefore, it is possible to provide the suction-type hot water distribution device 10 in which the molten metal can be moved quickly and the flexibility of the shape and size of the ladle can be increased.

(Other embodiments)
FIG. 3 shows a suction type hot water distributor according to another embodiment of the present invention.

  Since this embodiment has a configuration similar to that of the above-described one embodiment, common or corresponding components will be described using the same reference numerals as those of the above-described one embodiment.

  In the suction type hot water distribution device 10 of the present embodiment, the connecting position of the first suction pipe 21 and the second suction pipe 22 of the siphon portion 12, the curved shape of the second suction pipe 22, and the form of the ladle 3 are different. , And each is different from the above-described one embodiment.

  The second suction pipe 22 in the present embodiment has a base end portion 22a coupled to the upper end portion of the first suction pipe 21, and the height position (predetermined height position) and the direction in which the suction chamber 23 is connected to the second suction pipe 22 are described above. This is different from the case of the first embodiment.

  Further, the opening of the base end portion 22a of the second suction pipe 22 is arranged in the vicinity of a height position where the liquid surface L2a of the molten metal in the suction chamber 23 is pulled up by the reduced pressure exhaust in the suction chamber 23. 23 may be opened, or may be below the liquid level L2a. However, the pressure difference is set at both ends of the second suction pipe 22 so that the siphon effect can be generated.

  It is detected that each of the liquid level L1, L2, L3, L4 in FIG. 3 has reached the lower limit liquid level L3 of the molten metal in the ladle 3 or the upper limit liquid level L2 of the holding furnace 4. And a sensor for detecting that the upper limit liquid level Lex of the liquid level L2a in the first suction pipe 21 is reached. It should be noted that the downward triangles indicating the respective liquid surface levels in the figure indicate the sensors of the respective liquid surface levels.

  The other configurations are similar to those of the above-described embodiment, and this embodiment can also obtain the same effect as that of the embodiment.

  In each of the above-described embodiments, the destination of the molten metal is the holding furnace 4 on the die casting machine side, but one container whose liquid level is relatively high on the molten metal supply side is The container is not limited to the pot, and the other container in which the liquid level is relatively low on the supply side of the molten metal is not limited to the holding furnace or the hand furnace. That is, when the molten metal surface of the central melting furnace is relatively high and the molten metal level in the ladle is relatively low, one container serves as the melting furnace and the other The container can be used as a ladle, and the present invention can be applied to receiving hot water from the melting furnace to the ladle.

  Further, although the suction chamber 23 is evacuated by the vacuum pump 24 to be evacuated, another evacuated system may be used. However, it is desirable to be able to control the degree of pressure reduction (the pressure difference from the atmospheric pressure).

  Here, the means for pouring the molten metal into the die casting machine is not mentioned, but it goes without saying that it is not limited to a specific method. Further, the die casting machine is not limited to the aluminum die casting, and it is needless to say that any known materials having different materials to be used and a pouring method thereof may be used.

  As described above, according to the present invention, by performing the auxiliary suction of the siphon portion from the supply side, the molten metal can be moved quickly, and further, the suction type that can increase the degree of freedom of the shape and size of the ladle. A hot water distribution device can be provided, and it is useful for all suction type hot water distribution devices for moving a molten metal of a die casting metal between a ladle and a furnace such as a holding furnace.

1 Die-cast molding system 2 Central melting furnace 3 Ladle (one side container, supply side container)
3b Inner bottom surface 4 Holding furnace (other container, container on supply side, manual furnace)
5 Die-cast molding machine 10 Suction type hot water distribution device 11 Support frame 12 Siphon part 21 First suction pipe 21a Lower end opening 21c Exhaust port (suction / exhaust means)
21d Ceiling wall part 22 2nd suction pipe 22a Base end part 22b Tip part 22c Intermediate part 22d Internal passage 23 Suction chamber 24 Vacuum pump (exhaust means)
31 Abnormality detection electrode h1 Predetermined height position h2 Lifting height h3 Minimum height difference Lex Raising limit liquid level height L1 Lower limit liquid level (lower limit of melt level in the other container)
L2 upper limit liquid level (upper limit of melt level in the other container)
L2a liquid level (liquid level of the molten metal in the first suction tube chamber)
L3 lower limit liquid level (lower limit height of liquid level in one container)
L4 upper limit liquid level (upper limit of liquid level in one container)

Claims (7)

A suction type hot water dispenser having a siphon portion capable of pumping the molten metal from one container storing the molten metal to the other container, and distributing the molten metal through the siphon portion,
The siphon section is
A first suction pipe having a lower end opening that is immersed in the molten metal in the other container in a closed state, and having a one-end opening shape that defines a suction chamber capable of depressurizing with the molten metal in the other container; ,
A first end portion having a base end portion connected to a predetermined height position of the first suction pipe and a tip end portion which is inserted into the one container during the hot water distribution and is immersed in the molten metal in the one container in a closed state; And 2 suction tubes,
The first suction pipe is capable of decompressing and exhausting the inside of the suction chamber so as to raise the liquid level height of the molten metal in the other container in the suction chamber to a predetermined range above the predetermined height position. Suction type hot water distribution device. When the lower end opening of the first suction pipe is immersed in the molten metal in the other container in a closed state,
2. The suction type arrangement according to claim 1, wherein the vertical height of the tip portion of the second suction pipe is located vertically above the liquid level height of the molten metal in the other container. Hot water equipment.   The tip end portion of the second suction pipe during the hot water distribution is arranged at the lower limit liquid level height position in the vicinity of the inner bottom wall surface in the one container. Suction type hot water distribution device.   Abnormality detection for detecting a rise in the liquid level in the suction chamber of the molten metal in the other container when the liquid level in the suction chamber is pulled upward from the predetermined height position beyond a predetermined range. The suction type hot water distributor according to any one of claims 1 to 3, further comprising means.   The suction type hot water distributor according to any one of claims 1 to 4, wherein a cross-sectional area of the intake chamber in the first suction pipe is larger than a cross-sectional area of a passage in the second suction pipe.   When the tip portion of the second suction pipe is immersed in the molten metal in the one container in a closed state, an intermediate portion in the length direction of the second suction pipe is a liquid surface of the molten metal in the one container. The suction type hot water distribution device according to any one of claims 1 to 5, wherein the suction type hot water distribution device is arranged vertically above the height. It has a siphon part capable of pumping out the molten metal received in the ladle from the furnace on the supply side, and distributes the molten metal from the ladle to the furnace on the supply side through the siphon part. It is a suction type hot water distribution device,
The siphon portion has a lower end opening that is immersed in the molten metal in the furnace on the supplied side in a closed state, and defines a suction chamber capable of decompressing with the molten metal in the furnace on the supplied side. A first suction pipe having an opening at one end, a base end portion connected to a predetermined height position of the first suction pipe, and a molten metal in the ladle so as to be immersed in a closed state when inserted into the ladle during the hot water distribution A second suction tube having a distal end portion that is
The first suction pipe has an exhaust port capable of exhausting the suction chamber so as to raise the liquid level of the molten metal in the furnace on the supplied side to a predetermined range equal to or higher than the predetermined height position. A suction type hot water distribution device characterized by having.

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