CN2392785Y - Degassing device for molten aluminium - Google Patents
Degassing device for molten aluminium Download PDFInfo
- Publication number
- CN2392785Y CN2392785Y CN 99241364 CN99241364U CN2392785Y CN 2392785 Y CN2392785 Y CN 2392785Y CN 99241364 CN99241364 CN 99241364 CN 99241364 U CN99241364 U CN 99241364U CN 2392785 Y CN2392785 Y CN 2392785Y
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- CN
- China
- Prior art keywords
- molten aluminium
- container body
- bubble
- heating chamber
- container
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a degassing device for a molten aluminium body, which comprises a container cap, and a container body with an inlet flow channel and an outlet flow channel. The utility model is characterized in that the bottom of the container body is provided with a ventilative plug, the lower part of the side wall of the container body is provided with a gas nozzle, a heating chamber which extends into the container body is arranged on the container cap, and a heater is arranged in the heating chamber. The utility model has advantages of simple structure, low cost, long service life, etc. The heating chamber with the heater can retain the temperature of the molten aluminium body so as to reduce the loss of waste materials which is caused by that the molten aluminium body is dried, and the heating chamber with the heater has the isolated function for the middle part of the molten aluminium body, so the molten aluminium body is evenly stirred, and degassing efficiency can be raised.
Description
The utility model relates to a kind of refining plant, the device of gas in particularly a kind of metal of removing under the molten state.
Behind the aluminum alloy melting, owing to bring in the raw material and with surrounding environment in steam reaction contain a certain amount of hydrogen.After molten aluminium is frozen into solid, the ability of its dissolved hydrogen reduces greatly, the hydrogen that originally was dissolved in molten aluminium is not as discharging from melt before it solidifies, hydrogen will be stayed with the form of bubble and form pore in the foundry goods, cause the loose of aluminium, thereby the reduction product performance, even cause a large amount of waste products, wasted fund.In order to improve aluminium product performance and quality, molten aluminium must be through purifying treatment, to remove the hydrogen in the aluminium product before casting; At present, the method for removing hydrogen in the aluminium product generally is constantly to be blown into the rare gas element bubble in molten aluminium, makes hydrogen constantly to rare gas element bubble internal diffusion, and discharges molten aluminium with the rare gas element bubble floating.In order in molten aluminium, to inject tiny rare gas element bubble, adopt following structure formation usually:
1. porous plug formula: porous plug is made of porous materials, and places container body bottom, and rare gas element is introduced in the intravital molten aluminium of container through porous plug, forms many tiny bubbles, and the hydrogen in the molten aluminium diffuses in these tiny bubbles, and is taken out of melt by bubble.Though this degasifying device equipment is simple and with low cost, but, since porous plug produce bubble can't be full of whole molten aluminium equably, bubble linearly rises in molten aluminium, the residence time lacks and has the trend that aggregates into air pocket in molten aluminium, so degassing effect is not good.
2. high-velocity nozzle formula: the high-velocity nozzle of a plurality of special making is placed the bottom of container body, and high-pressure inert gas forms a string tiny bubble through the aperture ejection of nozzle, and the hydrogen in the molten aluminium diffuses in these tiny bubbles, and is taken out of melt by bubble.Though the simple less investment of this degasifying device equipment, the bubble of ejection has certain momentum, and molten aluminium is had stirring action,, the bubble that it produces is thicker, and bubble also is difficult to be full of well whole molten aluminium, thereby its degassing effect is not good yet.
3. rotary nozzle formula: it is that rotary nozzle is stretched into the melt bottom, rare gas element feeds rotary nozzle via turning axle, electric motor driving rotary nozzle high speed rotating, rare gas element is broken into tiny rare gas element bubble in the rotary nozzle exit by the shower nozzle of high speed rotating, hydrogen in the molten aluminium diffuses in these tiny bubbles, and is taken out of melt by bubble.This degasifying device makes tiny bubble and molten aluminium be able to thorough mixing because of the stirring action of rotary nozzle, has degassing effect preferably; Yet this rotary nozzle and rotating shaft are graphite material, easily oxidation in high temperature aluminum liquid, and work-ing life is shorter, and the manufacturing process complexity of graphite rotator, costs an arm and a leg, and is unsuitable for and applies.
The purpose of this utility model just provides a kind of aluminum melt degassing device of simple in structure, cheap and long service life, and it can make the bubble of rare gas element be full of whole molten aluminium, improves the efficient of degasification.
The purpose of this utility model is to realize by such technical scheme, it includes container cover and has the inlet chute and the container body of outlet chute, it is characterized in that: the bottom of container body is provided with porous plug, the lower sidewall of container body is provided with gas jet, container cover is provided with and stretches into the intravital heating chamber of container, is provided with well heater in the heating chamber.
Principle of work of the present utility model is such: molten aluminium flows in the container body through the inlet chute, rare gas element vertically imports in the intravital molten aluminium of container through the form of porous plug with tiny bubble, the high speed rare gas element bubble flow that sprays with horizontal form through gas jet stirs molten aluminium, and changed the path that the tiny bubble that imported by porous plug rises, under the acting in conjunction of horizontal bubble and vertical bubble, bubble is riddled in the whole molten aluminium equably, and prolonged the residence time of bubble in molten aluminium, thereby improved the degassing efficiency of degasifying device.The high heat that the well heater of work sends through molten aluminium, still can remain on the fusing point molten aluminium temperature through the heating chamber transmission, guarantees that molten aluminium is in molten state and does not solidify, to reduce the generation of waste material; Heating chamber also plays the intermediate isolating effect of molten aluminium, so that the stirring of molten aluminium is full of in the whole molten aluminium bubble more equably, further improves degassing efficiency.
Owing to adopted technique scheme, the utlity model has advantages such as simple in structure, cheap and long service life, the heating chamber of band well heater not only can keep the temperature of molten aluminium not reduce during not cast, to reduce because of putting the scrap piece loss that dried molten aluminium produces, and play molten aluminium intermediary buffer action, molten aluminium is stirred, improve degassing efficiency.
Description of drawings of the present utility model is as follows:
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1. container cover; 2. inlet chute; 3. outlet chute; 4. container body; 5. porous plug; 6. gas jet; 7. heating chamber; 8. well heater.
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the utility model includes container cover 1 and has inlet chute 2 and the container body 4 of outlet chute 3, it is characterized in that: the bottom of container body 4 is provided with porous plug 5, the lower sidewall of container body 4 is provided with gas jet 6, container cover 1 is provided with the heating chamber 7 that stretches in the container body 4, is provided with well heater 8 in the heating chamber 7.
In order to make the rare gas element bubble be full of whole molten aluminium equably, further improve degassing efficiency, a plurality of porous plugs 5 and gas jet 6 can be set, and a plurality of porous plugs 5 are arranged at the bottom of container body 4 equably, and a plurality of gas jets 6 are arranged at container body 4 lower sidewall equably.
Principle of work of the present utility model is such: molten aluminium flows in the container body 4 through inlet chute 2, rare gas element is through porous plug 5 vertically imports molten aluminium in the container body 4 with the form of tiny bubble in, the high speed rare gas element bubble flow that sprays with horizontal form through gas jet 6 stirs molten aluminium, and changed the path that the tiny bubble that imported by porous plug 5 rises, under the acting in conjunction of horizontal bubble and vertical bubble, bubble is riddled in the whole molten aluminium equably, and prolonged the residence time of bubble in molten aluminium, thereby improved the degassing efficiency of degasifying device.The high heat that the well heater 8 of work sends is transmitted through molten aluminium through heating chamber 7, and the molten aluminium temperature still can be remained on the fusing point, guarantees that molten aluminium is in molten state and does not solidify, to reduce the generation of waste material; Heating chamber 7 also plays the intermediate isolating effect of molten aluminium, so that the stirring of molten aluminium is full of in the whole molten aluminium bubble more equably, further improves degassing efficiency.
Claims (3)
1. aluminum melt degassing device, include container cover (1) and have inlet chute (2) and the container body (4) of outlet chute (3), it is characterized in that: the bottom of container body (4) is provided with porous plug (5), the lower sidewall of container body (4) is provided with gas jet (6), container cover (1) is provided with the heating chamber (7) that stretches in the container body (4), is provided with well heater (8) in the heating chamber (7).
2. aluminum melt degassing device as claimed in claim 1 is characterized in that: a plurality of porous plugs (5) are arranged at the bottom of container body (4) equably.
3. aluminum melt degassing device as claimed in claim 1 is characterized in that: a plurality of gas jets (6) are arranged at container body (4) lower sidewall equably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241364 CN2392785Y (en) | 1999-10-20 | 1999-10-20 | Degassing device for molten aluminium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241364 CN2392785Y (en) | 1999-10-20 | 1999-10-20 | Degassing device for molten aluminium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2392785Y true CN2392785Y (en) | 2000-08-23 |
Family
ID=34028235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99241364 Expired - Lifetime CN2392785Y (en) | 1999-10-20 | 1999-10-20 | Degassing device for molten aluminium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2392785Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313339A (en) * | 2014-10-24 | 2015-01-28 | 苏州有色金属研究院有限公司 | Online molten aluminum degassing device |
| CN107489638A (en) * | 2017-09-30 | 2017-12-19 | 湖北启宏热工设备有限公司 | A kind of alloy refining depassing unit |
| CN114592146A (en) * | 2022-02-28 | 2022-06-07 | 南京工程学院 | Blank for ultra-wide and ultra-thin power battery aluminum foil and preparation method thereof |
-
1999
- 1999-10-20 CN CN 99241364 patent/CN2392785Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313339A (en) * | 2014-10-24 | 2015-01-28 | 苏州有色金属研究院有限公司 | Online molten aluminum degassing device |
| CN107489638A (en) * | 2017-09-30 | 2017-12-19 | 湖北启宏热工设备有限公司 | A kind of alloy refining depassing unit |
| CN114592146A (en) * | 2022-02-28 | 2022-06-07 | 南京工程学院 | Blank for ultra-wide and ultra-thin power battery aluminum foil and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |