Electronic-grade ultra-high-purity aluminum crystallization device

An electronic-level, ultra-high technology, applied in the direction of improving process efficiency, can solve the problems of poor purification effect and high purification cost, and achieve the effect of realizing multiple uses, reducing costs, and reducing pipeline settings.

CN112708778AActive Publication Date: 2021-04-27宁波锦越新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-04-27

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Abstract

The invention discloses an electronic-grade ultra-high-purity aluminum crystallization device. The electronic-grade ultra-high-purity aluminum crystallization device comprises a rotating body and a driving device; the rotating body is installed above a crucible; the lower end of the rotating body extends into the position below the liquid level of molten aluminum in the crucible; the driving device is connected with the rotating body and is used for driving the rotating body to rotate; a cooling gas circuit is arranged in the rotating body and is filled with cooling gas to cool the rotating body, and then high-purity aluminum crystals are formed at the lower end of the rotating body through solidification and accumulation. The electronic-grade ultra-high-purity aluminum crystallization device solves the problems of high purification cost and poor purification effect in the prior art.
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Description

technical field

[0001] The invention relates to a purification device for metal aluminum, in particular to an electronic-grade ultra-high-purity aluminum crystallization device. Background technique

[0002] Aluminum products with a purity above 5N5 are called ultra-high-purity aluminum. Ultra-high-purity aluminum is widely used in the fields of electronics, aviation, navigation, chemical and defense industries, and its consumption is increasing year by year. But now there are very few domestic enterprises that can produce 5N5 ultra-high-purity aluminum that meet the needs of users, and there are only a handful of research and development units. Therefore, almost all ultra-high-purity aluminum needed in China depends on imports.

[0003] In the prior art, such as the invention patent application document with the application number 201610042682.1, a method for purifying ultra-high-purity aluminum is proposed, including selecting refined aluminum with a purity of at least 4N6...

Examples

Embodiment 1

[0029] An electronic-grade ultra-high-purity aluminum crystallization device, including a rotating body and a driving device 2, the rotating body is arranged in a columnar shape, the rotating body is installed vertically above the crucible 3, and the lower end of the rotating body extends into the aluminum liquid in the crucible 3 Below the liquid level 4, the driving device 2 is connected with the rotating body above the crucible 3 for driving the rotating body to rotate. Wherein the crucible 3 is preferably a graphite crucible 3 .

[0030] Specifically, the drive device 2 is preferably a motor, the crucible 3 is provided with a bracket 9, the motor is fixedly mounted on the bracket 9, the output shaft of the motor is directly connected to the rotor or the output shaft of the motor is connected to the rotor through a transmission structure . Wherein the transmission structure includes a driving gear 21 and a driven gear 22, the driving gear 21 is sleeved on the outside of th...