Crucible structure of magnesium alloy machine edge pouring furnace

Abstract

The embodiment of the utility model discloses a magnesium alloy machine edge pouring furnace crucible structure, and relates to the technical field of metal smelting or casting, a crucible furnace is connected with a liquid transfer furnace through a liquid transfer pipe, a plurality of partition plates are arranged in the crucible furnace, the interior of the crucible furnace is divided into a plurality of cavities by the partition plates, communicating holes are formed in the tops of the partition plates, and the communicating holes are communicated with the liquid transfer pipe. A communicating hole is formed in the liquid transfer furnace, the communicating hole is communicated with the cavities on the two sides of the partition plate, a liquid transfer pump is arranged in each cavity, the height of the liquid transfer pumps is lower than that of the communicating hole, the liquid transfer pumps transfer magnesium liquid in the cavities so that the magnesium liquid can flow in the cavities, and the liquid transfer furnace is connected with the crucible furnace through one liquid transfer pump; the die-casting machine is connected with the crucible furnace through the pouring pipe, one end of the pouring pipe is connected with the liquid transfer pump, and the multiple cavities and the liquid transfer pump are arranged, so that suction force can be kept on the liquid transfer pump all the time in the liquid transfer furnace replacement period, and the liquid transfer furnace can be immediately used after being replaced.

Description

Technical Field

[0001] The present application relates to the technical field of metal smelting or casting, and in particular to a crucible structure of a magnesium alloy machine-side pouring furnace. Background Art

[0002] In the magnesium alloy die-casting industry, a metered pouring pump transfers 650-690°C magnesium alloy liquid from a machine-side pouring furnace to the melting cup of the die-casting machine, producing die-cast magnesium alloy products using the die-casting process. During the die-casting process, the machine-side pouring furnace requires timely replenishment of magnesium alloy liquid. Traditionally, this process involves melting magnesium alloy ingots in the crucible of the machine-side pouring furnace to replenish the consumed magnesium liquid. Baowu's pioneering direct magnesium liquid production process transfers magnesium liquid smelted in the alloy workshop directly through a transfer furnace to the crucible of the machine-side pouring furnace for replenishment. This eliminates the intermediate ingot-building and remelting process, saving significant energy, manpower, and material resources. During the direct supply of magnesium liquid, the alloy workshop places the molten magnesium liquid in a 4.5T transfer furnace and transports it to the die-casting machine via an AGV trolley. The magnesium liquid in the transfer furnace is pumped into the crucible liquid supply chamber of the machine-side pouring furnace through the inter-furnace transfer pump (1# pump) in the liquid supply chamber of the machine-side pouring furnace to complete the inter-furnace transfer. During the die-casting process, the magnesium liquid in the liquid supply chamber of the machine-side pouring furnace is then pumped forward to the pouring chamber through another in-furnace transfer pump (2# pump) in the liquid supply chamber. The magnesium liquid in the pouring chamber is fed to the die-casting machine by the pouring pump (3# pump) in the pouring chamber.

[0003] The structure of the crucible in the magnesium alloy machine-side pouring furnace currently on the market is too simple, with only two chambers: one is the liquid supply chamber, whose main function is to replenish the magnesium alloy melt, and the other is the pouring chamber, whose main function is to pour into the material cup of the die-casting machine. This structure of the crucible will cause the following two defects during use: ① During the production process, when the transfer furnace is evacuated and the transfer furnace is switched, the furnace change time is about 20 minutes. The transfer pump between the transfer furnaces is in a shutdown state, and the external magnesium liquid is cut off. If the die-casting machine is not shut down, the transfer pump and pouring pump in the furnace are always in working state. The magnesium liquid in the liquid supply chamber will gradually decrease and the liquid level will gradually drop. Because the rotating shaft of the transfer pump between the transfer furnaces should not be too long, it will take about 10 minutes for the liquid level to drop below the pump chamber between the transfer furnaces. Once the pump chamber of the transfer pump between the transfer furnaces is exposed, the transfer pump between the transfer furnaces will lose the ability to continue transferring liquid next time. After the furnace change is completed, the transfer between the furnaces will fail. To ensure that the transfer between furnaces can proceed smoothly, the die-casting machine has to be shut down when switching the transfer furnace, which will increase production costs. ② This two-chamber crucible structure has no slag filtering function. The bottom slag sucked from the transfer furnace will be transferred to the pouring chamber with the circulation of magnesium liquid. Once the bottom slag is poured into the die-casting machine with the magnesium liquid and die-cast into the product, it will seriously affect the quality of the die-casting and cause serious quality problems. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a crucible structure of a magnesium alloy machine-side pouring furnace. By providing multiple chambers and a liquid transfer pump, the liquid transfer pump can always maintain suction during the replacement of the liquid transfer furnace, so that the liquid transfer furnace can be used immediately after the replacement is completed.

[0005] The technical solutions adopted by the present invention to solve the above technical problems are as follows:

[0006] The present application provides a crucible structure for a magnesium alloy side-of-the-machine pouring furnace, comprising:

[0007] liquid transfer furnace;

[0008] A crucible furnace is connected to the liquid transfer furnace via a liquid transfer pipe, wherein a plurality of partitions are provided in the crucible furnace, wherein the plurality of partitions divide the interior of the crucible furnace into a plurality of chambers, and a connecting hole is provided at the top position of each partition, wherein the connecting hole connects the chambers on both sides of the partition, and a liquid transfer pump is provided in each chamber, wherein the height of the plurality of liquid transfer pumps is lower than the height of the connecting hole, and the plurality of liquid transfer pumps transfer the magnesium liquid in the chamber through the connecting hole so that the magnesium liquid flows in the plurality of chambers, wherein the liquid transfer furnace is connected to the crucible furnace via one of the liquid transfer pumps;

[0009] The die-casting machine is connected to the crucible furnace through a pouring pipe, and one end of the pouring pipe is connected to the liquid transfer pump.

[0010] Optionally, in some embodiments of the present application, two partitions are provided, and the two partitions separate the crucible furnace into three chambers, the three chambers being a liquid transfer chamber, a buffer chamber, and a pouring chamber, respectively, and the buffer chamber is located between the liquid transfer chamber and the pouring chamber;

[0011] Wherein, the liquid transfer furnace is communicated with the liquid transfer chamber, and the die-casting machine is communicated with the casting chamber.

[0012] Optionally, in some embodiments of the present application, in the buffer chamber, the liquid transfer pump transfers the magnesium liquid in the buffer chamber into the casting chamber.

[0013] Optionally, in some embodiments of the present application, a pipette is provided in the crucible furnace, and the pipette is connected to the liquid transfer pump located in the buffer chamber, so that the magnesium liquid in the buffer chamber enters the casting chamber through the pipette.

[0014] Optionally, in some embodiments of the present application, a magnesium slag filtering device is provided on the partition between the liquid transfer chamber and the buffer chamber, and the magnesium slag filtering device is connected to the connecting hole, so that the magnesium liquid in the liquid transfer chamber enters the buffer chamber through the magnesium slag filtering device.

[0015] Optionally, in some embodiments of the present application, the magnesium slag filtering device includes magnesium oxide ceramic particles, and the magnesium oxide ceramic particles are evenly distributed in the magnesium slag filtering device.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model is provided with a plurality of partitions to divide the crucible furnace into a liquid transfer chamber, a buffer chamber and a pouring chamber. When the liquid transfer furnace is replaced, the die-casting machine does not stop, so that the magnesium liquid in the buffer chamber can be transferred to the pouring chamber through the liquid transfer pump, while the liquid transfer pump in the liquid transfer chamber is stopped, and the liquid level of the magnesium liquid in the liquid transfer chamber is always higher than the height of the upper inlet of the liquid transfer pump, so that the liquid transfer pump is always filled with magnesium liquid, the suction force of the liquid transfer pump is maintained, and it can be ensured that the liquid transfer can be sucked back again after the liquid transfer furnace is switched;

[0018] 2. The use of a magnesium slag filtration device, specifically the use of magnesium oxide ceramic particles, effectively removes scum and impurities from the magnesium liquid, improving its purity and the quality of the final product. This filtration method is not only highly efficient but also ensures the overall filtration of the magnesium liquid, reducing defects in subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the crucible structure of the magnesium alloy side-of-the-machine pouring furnace provided in an embodiment of the present application;

[0021] Figure 2 A schematic side cross-sectional view of the crucible structure of a magnesium alloy side-of-the-machine pouring furnace provided in an embodiment of the present application;

[0022] Figure 3 for Figure 2 A magnified schematic diagram of the structure of the middle A area;

[0023] Figure 4 for Figure 2 A magnified schematic diagram of the structure of the middle B area;

[0024] Figure 5 This is a schematic side cross-sectional view of the magnesium slag filtering device provided in an embodiment of the present application.

[0025] Description of reference numerals:

[0026] 100, liquid transfer furnace; 200, crucible furnace; 210, partition; 211, connecting hole; 220, liquid transfer chamber; 230, buffer chamber; 240, pouring chamber; 250, pipette; 260, magnesium slag filtering device; 261, magnesium oxide ceramic particles; 262, filter hole; 300, die-casting machine; 400, liquid transfer pipe; 500, liquid transfer pump. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. It is understood that the drawings are only provided for reference and illustration purposes and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0028] Specifically, if Figures 1-4 As shown, an embodiment of the present application provides a crucible structure of a magnesium alloy machine-side pouring furnace, which mainly includes a liquid transfer furnace 100, a crucible furnace 200 and a die-casting machine 300. The liquid transfer furnace 100, the crucible furnace 200 and the die-casting machine 300 are all connected by a liquid transfer pipe 400, so that the magnesium liquid in the liquid transfer furnace 100 is transferred to the die-casting machine 300 through the crucible furnace 200.

[0029] On the basis of the above structure, a liquid transfer tube 400 is connected to the liquid transfer furnace 100, and a liquid transfer pump 500 is provided at the end position of the liquid transfer tube 400. By driving the liquid transfer pump 500, the magnesium liquid in the liquid transfer furnace 100 can enter the liquid transfer tube 400 and flow out of the liquid transfer pump 500. In the embodiment of the present application, the liquid transfer pump 500 is located in the crucible furnace 200, and specifically located in the liquid transfer chamber 220.

[0030] In the embodiments of this application, Figure 2 As shown, an inner cavity is opened in the crucible furnace 200, and two partitions 210 are arranged in the inner cavity. The two partitions 210 divide the inner cavity into a liquid transfer chamber 220, a buffer chamber 230 and a pouring chamber 240, wherein the buffer chamber 230 is located between the liquid transfer chamber 220 and the pouring chamber 240, and a connecting hole 211 is opened on the partition 210 between the liquid transfer chamber 220 and the buffer chamber 230, so that the magnesium liquid in the liquid transfer chamber 220 enters the buffer chamber 230 through the connecting hole 211.

[0031] When the magnesium liquid in the liquid transfer furnace 100 enters the liquid transfer chamber 220 through the liquid transfer tube 400, the night level of the magnesium liquid in the liquid transfer chamber 220 will rise. When the night level of the magnesium liquid rises to the position of the connecting hole 211, the magnesium liquid will enter the buffer chamber 230 through the connecting hole 211.

[0032] When the magnesium liquid enters the buffer chamber 230 from the liquid transfer chamber 220, the magnesium liquid will be filtered through the magnesium slag filter device 260. The magnesium slag filter device 260 is arranged on the partition 210 between the liquid transfer chamber 220 and the buffer chamber 230, specifically located on the connecting hole 211 on the partition 210. The magnesium slag filter device 260 contains magnesium oxide ceramic particles 261, which can adsorb some scum in the magnesium liquid, and the magnesium oxide ceramic particles 261 are evenly distributed in the magnesium slag filter device 260, so that the magnesium liquid can be completely filtered by the magnesium oxide ceramic particles 261 to achieve an overall filtering effect on the magnesium liquid.

[0033] In the embodiment of the present application, the magnesium slag filtering device 260 is arranged in the buffer chamber 230. Figure 5 As shown, the magnesium slag filtering device 260 is provided with a plurality of filter holes 262 at one end away from the communicating hole 211 to fully filter the magnesium liquid. At the same time, due to the provision of the filter holes 262, in order to prevent the magnesium liquid in the buffer chamber 230 from being too high and causing backflow and entering the liquid transfer chamber 220, in the embodiment of the present application, the magnesium liquid in the buffer chamber 230 can enter the casting chamber 240 through the liquid transfer pump 500. The specific process is as follows:

[0034] A liquid transfer pump 500 is provided in the buffer chamber 230, and the height of the water inlet of the liquid transfer pump 500 is lower than the height of the communication hole 211 on the partition 210, so that the magnesium liquid in the buffer chamber 230 can enter the pouring chamber 240 through the suction of the liquid transfer pump 500 and cannot flow back into the liquid transfer chamber 220;

[0035] A pipette 250 is provided on the liquid transfer pump 500 in the buffer chamber 230. One end of the pipette 250 is connected to the liquid transfer pump 500, and the other end of the pipette 250 enters the pouring chamber 240 through the connecting hole 211 on the partition 210, so that the magnesium liquid in the buffer chamber 230 can enter the pouring chamber 240 through the pipette 250.

[0036] Among them, a liquid transfer pump 500 is also provided in the pouring chamber 240, and the liquid transfer pump 500 is connected to the die-casting machine 300, so that the magnesium liquid in the pouring chamber 240 is transported into the die-casting machine 300 through the liquid transfer pump 500, making it convenient for the die-casting machine 300 to die-cast the magnesium liquid into magnesium products.

[0037] In the pouring chamber 240, the height of the input port of the liquid transfer pump 500 is lower than the height of the opening of the pipette 250 in the pouring chamber 240. Correspondingly, in the liquid transfer chamber 220, the height of the input port of the liquid transfer pump 500 is lower than the height of the connecting hole 211 between the liquid transfer chamber 220 and the buffer chamber 230.

[0038] Therefore, based on the above structure, magnesium liquid can be transported in a regulated manner, specifically as follows:

[0039] When the liquid transfer furnace 100 is switched, the liquid transfer pump 500 connected to the liquid transfer furnace 100, that is, the liquid transfer pump 500 located in the liquid transfer chamber 220 stops working and cannot provide magnesium liquid transfer. At this time, when the liquid level of the magnesium liquid is higher than the height of the connecting hole 211, the magnesium liquid will enter the buffer chamber 230 through the connecting hole 211 until the level of the magnesium liquid is lower than the height of the connecting hole 211.

[0040] At this time, in the buffer chamber 230 and the pouring chamber 240, since the die-casting machine 300 does not stop, the magnesium liquid in the pouring chamber 240 will gradually decrease. In order to maintain the suction force of the liquid transfer pump 500 in the pouring chamber 240, it is necessary to always maintain the liquid level of the magnesium liquid in the pouring chamber 240. At this time, the liquid transfer pump 500 in the buffer chamber 230 absorbs the magnesium liquid in the buffer chamber 230, so that the magnesium liquid state is always maintained in the pouring chamber 240, and the liquid level is higher than the height of the liquid transfer pump 500.

[0041] Among them, since the time during which the liquid transfer furnace 100 is replaced is usually about 20 minutes, during the 20 minutes, the liquid transfer pump 500 in the liquid transfer chamber 220 does not work, and the magnesium liquid in the liquid transfer chamber 220 will always submerge the bottom of the liquid transfer pump 500, so that the liquid transfer pump 500 is always filled with magnesium liquid, so that the liquid transfer pump 500 always has suction. When the liquid transfer furnace 100 is replaced, the liquid transfer pump 500 can directly absorb the magnesium liquid from the new liquid transfer furnace 100.

[0042] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A crucible structure for a magnesium alloy side-of-the-machine pouring furnace, characterized in that: include: liquid transfer furnace; A crucible furnace is connected to the liquid transfer furnace via a liquid transfer pipe, wherein a plurality of partitions are provided in the crucible furnace, wherein the plurality of partitions divide the interior of the crucible furnace into a plurality of chambers, and a connecting hole is provided at the top position of each partition, wherein the connecting hole connects the chambers on both sides of the partition, and a liquid transfer pump is provided in each chamber, wherein the height of the plurality of liquid transfer pumps is lower than the height of the connecting hole, and the plurality of liquid transfer pumps transfer the magnesium liquid in the chamber so that the magnesium liquid flows in the plurality of chambers, wherein the liquid transfer furnace is connected to the crucible furnace via one of the liquid transfer pumps; The die-casting machine is connected to the crucible furnace through a pouring pipe, and one end of the pouring pipe is connected to the liquid transfer pump.

2. The crucible structure of a magnesium alloy side-of-the-machine pouring furnace according to claim 1, characterized in that: There are two partitions, which separate the crucible furnace into three chambers. The three chambers are a liquid transfer chamber, a buffer chamber, and a pouring chamber. The buffer chamber is located between the liquid transfer chamber and the pouring chamber. Wherein, the liquid transfer furnace is communicated with the liquid transfer chamber, and the die-casting machine is communicated with the pouring chamber.

3. The crucible structure of a magnesium alloy side-of-the-machine pouring furnace according to claim 2, characterized in that: In the buffer chamber, the liquid transfer pump transfers the magnesium liquid in the buffer chamber into the pouring chamber.

4. The crucible structure of a magnesium alloy side-of-the-machine pouring furnace according to claim 3, characterized in that: A pipette is provided in the crucible furnace, and the pipette is connected to the liquid transfer pump located in the buffer chamber, so that the magnesium liquid in the buffer chamber enters the pouring chamber through the pipette.

5. The crucible structure of a magnesium alloy side-of-the-machine pouring furnace according to claim 4, characterized in that: A magnesium slag filtering device is provided on the partition between the liquid transfer chamber and the buffer chamber, and the magnesium slag filtering device is connected to the connecting hole, so that the magnesium liquid in the liquid transfer chamber enters the buffer chamber through the magnesium slag filtering device.

6. The crucible structure of a magnesium alloy side-of-the-machine pouring furnace according to claim 5, characterized in that: The magnesium slag filtering device includes magnesium oxide ceramic particles, and the magnesium oxide ceramic particles are evenly distributed in the magnesium slag filtering device.

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