Aluminum liquid on-line degassing machine with circulation function

Abstract

The utility model relates to an on -line degassing machine of liquid aluminum with circulating function, including liquid aluminum holding furnace and refining host, and the refining host includes rotating electric machine, and rotating electric machine is connected with graphite rotating shaft, and the end of graphite rotating shaft is connected with graphite carousel, and the liquid aluminum holding furnace includes hearth and refining mouth, and the hearth is passed through liquid aluminum passage one intercommunication with the refining mouth, and liquid aluminum passage one is located the below of the refining mouth, and the graphite carousel is located in the refining mouth, and the blade thickness H in graphite carousel is 40 60mm. The utility model discloses through to the graphite carousel leaf thickness and the setting of special liquid aluminum passage, and at the same time refining liquid aluminum, to the liquid aluminum has the promotion effect to realize the circulation of the liquid aluminum in the hearth inside and outside.

Description

Technical Field

[0001] This utility model relates to an aluminum liquid degassing machine, and more particularly to an online aluminum liquid degassing machine with circulation function, belonging to the technical field of casting equipment. Background Technology

[0002] Aluminum liquid degassing machines, also known as refining machines, are specialized equipment used to refine aluminum liquid. Their working principle is to use non-toxic inert gases such as nitrogen or argon as refining agents. Combined with the mechanical rotation of a rotor (with ventilation holes), nitrogen is fully dispersed into the aluminum liquid using the principle of fluid diffusion, which promotes the rapid leakage of hydrogen from the aluminum liquid to achieve the effect of hydrogen removal. At the same time, small inclusions are agglomerated into larger particles to achieve the effect of slag removal.

[0003] The aluminum liquid channel of the degassing machine in the prior art is set as follows: Figure 1 As shown, the refining port and the aluminum liquid channel inside the furnace, as well as the horizontal position of the graphite turntable and the position of the furnace, are basically flush. That is, the aluminum liquid surface is flush. Moreover, the thickness of the blades of the graphite turntable is no more than 25mm, so it does not have the function of lifting the aluminum liquid and cannot realize the circulation of aluminum liquid inside and outside the furnace, resulting in high energy consumption of aluminum liquid.

[0004] Therefore, those skilled in the art need to develop a degassing machine capable of circulating molten aluminum inside and outside the furnace to reduce the energy consumption of molten aluminum. This invention arises from this need. Utility Model Content

[0005] To address the aforementioned technical problems in the prior art, the purpose of this utility model is to provide an online degassing machine for molten aluminum with a circulation function. By adjusting the thickness of the graphite disc blades and designing a special molten aluminum channel, the machine can simultaneously refine and elevate the molten aluminum, thereby achieving circulation of the molten aluminum inside and outside the furnace.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: An online degassing machine for molten aluminum with circulation function includes an molten aluminum holding furnace and a refining main unit. The refining main unit includes a rotary motor connected to a graphite rotating shaft. A graphite turntable is connected to the end of the graphite rotating shaft. The molten aluminum holding furnace includes a furnace chamber and a refining inlet. The furnace chamber and the refining inlet are connected through an molten aluminum channel. The molten aluminum channel is located below the refining inlet. The graphite turntable is located inside the refining inlet, and the blade thickness H of the graphite turntable is 40-60 mm.

[0007] The aluminum liquid holding furnace also includes a liquid intake port, which is connected to the refining port through an aluminum liquid channel.

[0008] The liquid intake port is connected to the furnace through the aluminum liquid channel three, and the aluminum liquid channel three is located on one side of the liquid intake port at a higher position than the position on one side of the furnace.

[0009] The online degassing machine for molten aluminum with circulation function includes a lifting frame, the refining host is installed on the lifting frame, and the lifting frame is connected to a lifting motor through a lifting screw.

[0010] The beneficial effects of this utility model are as follows: This utility model relates to an online degassing machine for molten aluminum with a circulation function. The molten aluminum channel of the furnace and refining port is located below the refining port. The blade thickness H in the graphite turntable is 40-60mm. A rotating motor drives the graphite shaft and turntable, generating centrifugal force to draw the molten aluminum from the bottom molten aluminum channel upwards, thus lifting the molten aluminum and achieving circulation between the inside and outside of the furnace. This allows some of the molten aluminum from the extraction port to flow back into the furnace, while the high-temperature molten aluminum in the furnace flows out to the extraction port, reducing the temperature difference between the molten aluminum inside and outside the furnace and thus reducing energy consumption. Attached Figure Description

[0011] Figure 1 This is a schematic diagram showing the location of the aluminum liquid channel in the prior art; Figure 2 This is a schematic diagram showing the location of the aluminum liquid channel in this utility model; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction; Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure in the middle BB direction; Figure 5 This is a schematic diagram of the refining main unit in this utility model; Figure 6 This is a schematic diagram of the graphite turntable in this utility model; Among them, 1 is a rotary motor, 2 is a graphite shaft, 3 is a graphite turntable, 4 is a lifting frame, 5 is a lifting screw, 6 is a lifting motor, 7 is a furnace chamber, 8 is a refining port, 9 is aluminum liquid channel one, 10 is a liquid outlet, 11 is aluminum liquid channel two, 12 is aluminum liquid channel three, and 13 is the aluminum liquid surface. Detailed Implementation

[0012] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0013] like Figure 2-6As shown, this utility model of an online degassing machine for molten aluminum with circulation function includes an molten aluminum holding furnace and a refining main unit. The refining main unit includes a rotary motor 1, which is connected to a graphite rotating shaft 2. The end of the graphite rotating shaft 2 is connected to a graphite turntable 3. The molten aluminum holding furnace includes a furnace chamber 7 and a refining port 8. The furnace chamber 7 and the refining port 8 are connected through an molten aluminum channel 9, which is located below the refining port 8. The graphite turntable 3 is located inside the refining port 8, and the blade thickness H in the graphite turntable 3 is 40-60mm, such as 50mm, 55mm, 60mm, etc. This causes the rotary motor 1 to drive the graphite rotating shaft 2 and the graphite turntable 3, generating centrifugal force, which draws the molten aluminum in the bottom molten aluminum channel 9 upward. That is, the molten aluminum level 13 in the refining port 8 is higher than the molten aluminum level 13 in the furnace chamber 7, which has a lifting effect on the molten aluminum, thereby realizing the circulation of molten aluminum inside and outside the furnace chamber 7. The aluminum molten metal holding furnace also includes a liquid outlet 10, which is connected to the refining outlet 8 via a second aluminum molten metal channel 11. The liquid outlet 10 is connected to the furnace chamber 7 via a third aluminum molten metal channel 12, located on one side of the liquid outlet 10 at a higher position than the one on the side of the furnace chamber 7. The rotation of the graphite turntable 3 with its thick blades converts centrifugal force into lifting force, causing some of the molten aluminum from the liquid outlet 10 to flow back into the furnace chamber 7, while the high-temperature molten aluminum in the furnace chamber 7 flows out to the liquid outlet 10. Figure 2-4 The pointed tip indicates the direction of the molten aluminum, which can reduce the temperature difference between the molten aluminum inside and outside the furnace chamber 7, thereby reducing energy consumption.

[0014] Furthermore, this utility model also includes a lifting frame 4, on which the refining host is mounted. The lifting frame 4 is connected to a lifting motor 6 via a lifting screw 5, which is used to adjust the height of the graphite turntable 3.

[0015] When using this utility model, an external high-pressure nitrogen cylinder is required to introduce nitrogen gas to refine the molten aluminum. The other structures and components of this utility model are the same as the degassing machine structure in patent CN214271002U, and will not be described in detail here.

[0016] The above embodiments are only used to explain the inventive concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.

Claims

1. An online degassing machine for molten aluminum with a circulation function, comprising an molten aluminum holding furnace and a refining main unit, wherein the refining main unit includes a rotary motor connected to a graphite rotating shaft, the end of which is connected to a graphite turntable, the molten aluminum holding furnace includes a furnace chamber and a refining inlet, the furnace chamber and the refining inlet being connected through an molten aluminum channel, characterized in that: The aluminum liquid channel is located below the refining port, the graphite turntable is located inside the refining port, and the blade thickness H in the graphite turntable is 40-60mm.

2. The on-line degassing machine with circulation function for molten aluminum as claimed in claim 1, wherein: The aluminum liquid holding furnace also includes a liquid intake port, which is connected to the refining port through an aluminum liquid channel.

3. The on-line degassing machine with circulation function for molten aluminum as claimed in claim 2, wherein: The liquid intake port is connected to the furnace through the aluminum liquid channel three, and the aluminum liquid channel three is located on one side of the liquid intake port at a higher position than the position on one side of the furnace.

4. The on-line degassing machine with circulation function for molten aluminum as claimed in any one of claims 1 to 3, characterized in that: It includes a lifting frame, on which the refining host is mounted, and the lifting frame is connected to a lifting motor via a lifting screw.

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