CN216639616U

CN216639616U - Refining device for molten aluminum alloy

Info

Publication number: CN216639616U
Application number: CN202122713935.2U
Authority: CN
Inventors: 石渊攀; 罗振东
Original assignee: Inner Mongolia Liansheng New Energy Materials Co Ltd
Current assignee: Inner Mongolia Liansheng New Energy Materials Co Ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-05-31
Anticipated expiration: 2031-11-08

Abstract

The utility model provides a refining device for aluminum alloy liquation includes the heat preservation stove, the heat preservation stove on be equipped with the feed inlet and take off the cinder notch, the top of heat preservation stove is equipped with rotating device, rotating device's transfer line runs through the heat preservation stove back and links to each other with the graphite rotor in the heat preservation stove, the cover is equipped with thermal-insulated membrane on the transfer line, the clearance department of thermal-insulated membrane and graphite rotor is equipped with ventilating fan, the graphite rotor be linked together through gas supply line and concise gas tank, the last gas feed pump that is equipped with of gas supply line. This refining device reduces the influence of high-temperature gas to the transfer line through thermal-insulated membrane and the ventilation fan who links to each other with the refrigerator, has avoided the transfer line thermal deformation, has guaranteed the rotation stationarity of graphite rotor, has improved the concise efficiency of graphite rotor, and this refining device can carry concise gas and protective gas in the holding furnace simultaneously in the past in addition, has improved the security of whole refining process.

Description

Refining device for molten aluminum alloy

Technical Field

The utility model relates to a refining device, in particular to a refining device for molten aluminum alloy.

Background

The aluminum alloy is a non-ferrous metal structural material and is widely applied to the fields of aviation, aerospace, automobiles, mechanical manufacturing, ships and chemical industry, and with the rapid development of industrial economy, the demand of China on aluminum alloy structural parts is increasing day by day. The smelting of the aluminum alloy is a main link in the production of the aluminum alloy, the aluminum alloy is easy to bring hydrogen in the air in the smelting process, and the casting is easy to generate air holes, shrinkage porosity and other defects, so that molten metal needs to be refined in the smelting process of the aluminum alloy, and the current common refining mode is as follows: blowing refining gas into the rotating graphite rotor, crushing the refining gas into a large amount of dispersed bubbles by the graphite rotor, dispersing the dispersed bubbles in the molten metal, and absorbing hydrogen in the molten metal by the bubbles to complete the dehydrogenation work. Although the refining mode obviously improves the refining quality, in the rotation process of the graphite rotor, no matter the transmission rod of the rotating device is heated and deformed or other parts of the rotating device are damaged due to the influence of high-temperature gas, the rotation stability of the graphite rotor can be influenced, the graphite rotor is easily broken or damaged, the refining efficiency is influenced, and the production cost of the aluminum alloy is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a refining device for an aluminum alloy melt, aiming at solving the defects of the prior art.

The utility model provides a refining device for aluminum alloy melt includes the heat preservation stove, the heat preservation stove on be equipped with the feed inlet and take off the slag notch, the top of heat preservation stove is equipped with rotating device, rotating device and elevating gear link to each other, rotating device's transfer line link to each other with the graphite rotor in the heat preservation stove after running through the heat preservation stove, the transfer line on the cover be equipped with thermal-insulated membrane, the clearance department of thermal-insulated membrane and graphite rotor is equipped with ventilation fan, ventilation fan install on the inner wall of heat preservation stove to link to each other with the refrigerator outside the heat preservation stove, the graphite rotor be linked together through gas supply line and refined gas jar, the last gas supply pump that is equipped with of gas supply line.

Preferably, the feed inlet and the slag removing opening are provided with sealing covers, and the inner sides of the sealing covers are provided with airtight gaskets.

Preferably, the rotating device is connected with the lifting device through a lifting cantilever.

Preferably, a double-layer bracket is arranged beside the holding furnace, and the lifting device and the refrigerator are respectively arranged on the upper layer and the lower layer of the double-layer bracket.

Preferably, still be equipped with the lift stopper on the transfer line, the bottom of lift stopper supports thermal-insulated membrane.

Preferably, the gas supply pipeline is provided with a Venturi tube, and the throat part of the Venturi tube is connected with the protective gas tank through a gas supply branch.

Preferably, an air pressure balance box and a branch air pump are arranged on the air supply branch, a pressure sensor is arranged in the air pressure balance box, and the pressure sensor is connected with the branch air pump in a control mode.

Has the advantages that: the utility model discloses a refining device for molten aluminum alloy, which reduces the influence of high-temperature gas on a transmission rod through a heat insulation film and a ventilation fan connected with a refrigerator, avoids the transmission rod from being heated and deformed, ensures the rotation stability of a graphite rotor, improves the refining efficiency of the graphite rotor, and can convey refining gas and protective gas simultaneously in a heat preservation furnace in the past, thereby improving the safety of the whole refining process.

Drawings

FIG. 1 is a schematic view of a refining apparatus;

in the figure: 1. the device comprises a holding furnace 11, a feed inlet 12, a slag removing opening 13, a sealing cover 14, an airtight gasket 15, a double-layer bracket 2, a rotating device 21, a transmission rod 22, a heat insulation film 23, a lifting limiting block 3, a lifting device 31, a lifting cantilever 4, a graphite rotor 5, a ventilation fan 6, a refrigerator 7, a gas supply pipeline 71, a gas supply pump 72, a Venturi tube 8, a gas supply branch 81, a gas pressure balance box 82, a branch gas pump 83, a pressure sensor 9, a refining gas tank 10 and a protective gas tank.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the following examples and the accompanying drawings, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.

As shown in fig. 1, a refining device for aluminum alloy melt includes holding furnace 1, holding furnace 1 on be equipped with feed inlet 11 and take off slag notch 12, the top of holding furnace 1 is equipped with rotating device 2, rotating device 2 link to each other with elevating gear 3, the transfer line 21 of rotating device 2 link to each other with graphite rotor 4 in holding furnace 1 after running through holding furnace 1, transfer line 21 on the cover be equipped with thermal-insulated membrane 22, the clearance department of thermal-insulated membrane 22 and graphite rotor 4 is equipped with ventilation fan 5, ventilation fan 5 install on the inner wall of holding furnace 1 to link to each other with the outer refrigerator 6 of holding furnace 1, graphite rotor 4 be linked together through gas supply line 7 and refined gas tank 9, be equipped with gas supply pump 71 on the gas supply line 7.

In this embodiment, the feed inlet 11 and the slag removing opening 12 are both provided with a sealing cover 13, and an airtight gasket 14 is provided on the inner side of the sealing cover 13.

In this embodiment, the rotating device 2 is connected to the lifting device 3 through a lifting cantilever 31.

In this embodiment, a double-layer support 15 is disposed beside the holding furnace 1, and the lifting device 3 and the refrigerator 6 are respectively mounted on the upper layer and the lower layer of the double-layer support 15.

In this embodiment, a lifting limiting block 23 is further disposed on the transmission rod 21, and the bottom of the lifting limiting block 23 abuts against the heat insulation film 22.

In this embodiment, a venturi tube 72 is disposed on the gas supply pipeline 7, and a throat portion of the venturi tube 72 is connected to the shielding gas tank 10 through the gas supply branch 8.

In this embodiment, the air supply branch 8 is provided with an air pressure balance box 81 and a branch air pump 82, the air pressure balance box 81 is provided with a pressure sensor 83 therein, and the pressure sensor 83 is connected to the branch air pump 82 in a control manner.

The working condition is as follows: as shown in fig. 1, the gas supply pump 71 on the gas supply pipeline 7 is opened, the gas supply pump 71 delivers the refining gas in the refining gas tank 9 to the graphite rotor 4, the graphite rotor 4 is driven by the rotating device 2 to break the refining gas into a large number of dispersed bubbles, the dispersed bubbles are dispersed in the aluminum alloy melt, and the hydrogen removal work is completed by absorbing the hydrogen in the aluminum alloy melt through the bubbles.

When the refining gas passes through the venturi tube 72, the pressure at the throat of the venturi tube 72 is reduced, at this time, the gas in the gas pressure balance box 81 starts to enter the gas supply pipeline 7, the pressure sensor 83 detects the pressure reduction in the gas pressure balance box 81, the branch gas pump 82 is controlled to be turned on, and the branch gas pump 82 sends the protective gas in the protective gas tank 10 to the gas pressure balance box 81, so that the pressure balance in the gas pressure balance box 81 is ensured.

This refining device reduces the influence of high-temperature gas to the transfer line through thermal-insulated membrane and the ventilation fan who links to each other with the refrigerator, has avoided the transfer line thermal deformation, has guaranteed the rotation stationarity of graphite rotor, has improved the concise efficiency of graphite rotor, and this refining device can carry concise gas and protective gas in the holding furnace simultaneously in the past in addition, has improved the security of whole refining process.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The refining device for the molten aluminum alloy comprises a heat preservation furnace, wherein a feed inlet and a slag-off opening are formed in the heat preservation furnace, and the refining device is characterized in that a rotating device is arranged above the heat preservation furnace and connected with a lifting device, a transmission rod of the rotating device penetrates through the heat preservation furnace and then is connected with a graphite rotor in the heat preservation furnace, a heat insulation film is sleeved on the transmission rod, a ventilation fan is arranged at the gap between the heat insulation film and the graphite rotor, the ventilation fan is arranged on the inner wall of the heat preservation furnace and connected with a refrigerator outside the heat preservation furnace, the graphite rotor is communicated with a refining gas tank through a gas supply pipeline, and a gas supply pump is arranged on the gas supply pipeline.

2. A refining device for aluminum alloy melt as defined in claim 1, wherein the feed inlet and the slag removal port are provided with sealing caps, and the inner sides of the sealing caps are provided with airtight gaskets.

3. A refining apparatus for an aluminum alloy melt as set forth in claim 1 wherein said rotation means is connected to the elevating means by an elevating cantilever.

4. A refining apparatus for aluminum alloy melt as set forth in claim 1, wherein a double-layered rack is provided beside the holding furnace, and said elevating means and the refrigerator are installed at the upper and lower layers of the double-layered rack, respectively.

5. A refining apparatus for an aluminum alloy melt according to claim 1, wherein a lifting stopper is further provided on the transmission rod, and the bottom of the lifting stopper abuts against the heat insulating film.

6. A refining apparatus for aluminum alloy melt as claimed in claim 1, wherein the gas supply pipe is provided with a venturi tube, and the throat of the venturi tube is connected to the shielding gas tank through a gas supply branch.

7. A refining apparatus for molten aluminum alloy according to claim 6, wherein the air supply branch is provided with an air pressure balance box and a branch air pump, and the air pressure balance box is provided with a pressure sensor which is connected with the branch air pump in a control manner.