CN215572196U - Cooling tube assembly for crystallization and purification of molten aluminum and aluminum purification device - Google Patents
Cooling tube assembly for crystallization and purification of molten aluminum and aluminum purification device Download PDFInfo
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- CN215572196U CN215572196U CN202121738744.5U CN202121738744U CN215572196U CN 215572196 U CN215572196 U CN 215572196U CN 202121738744 U CN202121738744 U CN 202121738744U CN 215572196 U CN215572196 U CN 215572196U
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Abstract
The utility model discloses a cooling pipe assembly for molten aluminum crystallization purification, which comprises a cooling pipe, wherein an inner pipe is arranged in the cooling pipe in a penetrating manner, an opening at the bottom end of the inner pipe is close to the bottom of the cooling pipe, and the bottom surface of the cooling pipe is a spherical surface with expanded diameter. The utility model also discloses an aluminum purification device, comprising: a crucible for containing molten aluminum; the cooling pipe component is used for molten aluminum crystallization purification and is inserted into the crucible to precipitate aluminum crystals. The cooling gas in the inner pipe can directly reach the bottom of the cooling pipe, so that the heat exchange rate of the bottom of the cooling pipe is improved, the crystallization rate of a molten aluminum phase on the surface of the cooling pipe is accelerated, and the purpose of uniform crystallization of the whole cooling pipe is achieved. The design of the diameter-expanding spherical surface increases the heat exchange area, also improves the crystallization rate of the molten aluminum body at the bottom of the cooling tube, and achieves the purpose of uniform crystallization of the whole cooling tube.
Description
Technical Field
The utility model relates to the technical field of aluminum purification, in particular to a cooling tube assembly for crystallization and purification of molten aluminum and an aluminum purification device.
Background
The aluminum purification apparatus of the prior art (e.g., patent publication No. CN 112553473A) generally comprises a crucible and a cooling tube for crystallization. When the cooling tube is used, the cooling tube is inserted into a crucible containing molten aluminum, and the molten aluminum can be separated out and crystallized on the surface of the cooling tube. At present, the crucible is generally open, the liquid level of molten aluminum is in contact with the outside atmosphere, and the surface temperature is lower than the internal temperature of the molten aluminum, so that the crystallization rate is obviously higher than that of the molten aluminum at the position close to the liquid level of the molten aluminum, the crystallization on the surface of the cooling tube is not uniform, and the aluminum crystal covered on the surface of the cooling tube forms an inverted triangle, so that the crystallization utilization rate of the bottom of the cooling tube is not high.
Therefore, there is a need for an improved cooling tube that is positioned at the bottom of the molten aluminum bulk phase to allow more efficient heat exchange, to increase the crystallization rate of the molten aluminum bulk phase region, and to solve the problem of non-uniform aluminum crystallization rate across the entire surface of the cooling tube.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems and the defects in the field, the utility model provides the cooling tube component for crystallization purification of the molten aluminum, which increases the heat exchange area, can improve the heat exchange rate at the bottom of the cooling tube, accelerates the crystallization rate of the molten aluminum on the surface of the cooling tube, and achieves the purpose of uniform crystallization of the whole cooling tube.
A cooling tube assembly for molten aluminum crystallization purification comprises a cooling tube, wherein an inner tube penetrates through the cooling tube, an opening at the bottom end of the inner tube is close to the bottom of the cooling tube, and the bottom surface of the cooling tube is a spherical surface with an expanded diameter.
The cooling pipe is generally sealed at the bottom end, cooling gas can be introduced from the top end, the inner pipe can also be independent of the cooling pipe, and the cooling gas in the inner pipe can directly reach the bottom of the cooling pipe, so that the heat exchange rate of the bottom of the cooling pipe is improved, the crystallization rate of a molten aluminum body on the surface of the cooling pipe is accelerated, and the purpose of uniform crystallization of the whole cooling pipe is achieved. The design of the diameter-expanding spherical surface increases the heat exchange area, also improves the crystallization rate of the molten aluminum body at the bottom of the cooling tube, and achieves the purpose of uniform crystallization of the whole cooling tube.
In a preferred embodiment, the cooling tube assembly for the crystallization and purification of molten aluminum has a flared opening at the bottom end of the inner tube, which is beneficial to further enhance gas convection and heat exchange.
The present invention also provides an aluminum purification apparatus comprising:
a crucible for containing molten aluminum;
the cooling pipe assembly for molten aluminum crystallization purification is used for being inserted into the crucible to precipitate aluminum crystals.
In a preferred embodiment, the aluminum purification apparatus is characterized in that a plurality of sets of temperature control assemblies which are located at different heights and are respectively and independently controlled for adjusting the temperature of the corresponding region in the crucible are arranged outside the crucible. The temperature difference of areas with different heights in the crucible can be realized by independently controlling the heating state of each temperature control assembly to be opened or closed, so that the crystallization speed of the area can be reduced by properly increasing the temperature of the molten aluminum close to the liquid level area, and the uniform crystallization of the whole cooling pipe can be realized. The temperature control component can be a temperature control device commonly used in the art, such as a heating wire.
In a preferred embodiment, the crucible of the aluminum purification apparatus is provided with a heat insulation cover, and the heat insulation cover is provided with a through hole for the cooling pipe to pass through. The heat insulation cover can play a role in preserving heat of a region of molten aluminum close to the liquid level, so that the crystallization rate of the region can be slowed down to be close to the crystallization rate of a molten aluminum body on the surface of the cooling pipe, the overall growth rate of aluminum crystals on the surface of the cooling pipe is consistent, and uniform crystallization is realized. The material of the heat insulation cover can adopt heat insulation materials commonly used in the field, such as asbestos, glass fiber and the like.
In a preferred embodiment, the cooling pipe and the inner pipe of the aluminum purification device are respectively and independently connected with a cooling gas supply device.
Compared with the prior art, the utility model has the main advantages that:
according to the cooling tube assembly for molten aluminum crystallization purification, the bottom surface of the cooling tube is designed to be the spherical surface with the diameter expanded, the heat exchange area with the molten aluminum body phase region is increased, the inner tube penetrates through the cooling tube, the bottom end opening of the inner tube is close to the bottom of the cooling tube, convection is enhanced, the heat exchange efficiency of the bottom of the cooling tube is improved, the crystallization rate of the molten aluminum body at the bottom of the cooling tube is accelerated, the production efficiency of the molten aluminum crystallization purification is improved, and the purpose of uniform crystallization of the whole cooling tube is achieved.
Drawings
FIG. 1 is a schematic view of an aluminum purification apparatus according to an embodiment;
in the figure:
1-a crucible;
2-molten aluminum;
3-a cooling pipe;
4-aluminum crystal;
5-an upper temperature control assembly;
6-lower temperature control assembly;
7-inner tube;
8-heat insulation cover.
Detailed Description
The utility model is further described with reference to the following drawings and specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The following examples are conducted under conditions not specified, usually according to conventional conditions, or according to conditions recommended by the manufacturer.
As shown in FIG. 1, the aluminum purification apparatus of the present embodiment comprises a crucible 1 for containing molten aluminum 2 and a cooling tube assembly for inserting the crucible 2 to precipitate aluminum crystals 4.
The cooling tube assembly comprises a cooling tube 3. The bottom surface of the cooling tube 3 is a spherical surface with expanded diameter, so that the heat exchange area is increased, the crystallization rate of the molten aluminum 2 body at the bottom of the cooling tube 3 is improved, and the purpose of uniform crystallization of the whole cooling tube 3 is achieved. Wear to establish inner tube 7 in the cooling tube 3, inner tube 7 bottom opening is tubaeform flaring structure, and is close to the 3 bottoms of cooling tube, is favorable to further strengthening gaseous convection current and heat exchange. The cooling pipe 3 and the inner pipe 7 are respectively and independently externally connected with a cooling gas supply device (not shown). The bottom end of the cooling pipe 3 is sealed, cooling gas can be introduced from the top end, the cooling gas can be introduced from the top end into the inner pipe 7 independently of the cooling pipe 3, and the cooling gas in the inner pipe 7 can directly reach the bottom of the cooling pipe 3 (arrows in figure 1 indicate the inlet and outlet flow direction of the cooling gas), so that the heat exchange rate of the bottom of the cooling pipe 3 is improved, the crystallization rate of the molten aluminum 2 body on the surface of the cooling pipe 3 is accelerated, and the purpose of uniform crystallization of the whole cooling pipe 3 is achieved.
The crucible 1 is provided with a heat insulation cover 8, and the heat insulation cover 8 is provided with a through hole for the cooling pipe 3 to pass through. The heat insulation cover 8 can play a role in preserving heat of the area of the molten aluminum 2 close to the liquid level, so that the crystallization rate of the area can be slowed down to be close to the crystallization rate of the molten aluminum 2 body on the surface of the cooling pipe 3, the overall growth rate of the aluminum crystal 4 on the surface of the cooling pipe 3 is consistent, and uniform crystallization is realized. The material of the heat insulation cover 8 can adopt heat insulation materials commonly used in the field, such as asbestos, glass fiber and the like.
The outer side of the crucible 1 is provided with 2 sets of temperature control components which are positioned at different heights and are respectively and independently controlled to adjust the temperature of the corresponding area in the crucible 1, namely an upper temperature control component 5 and a lower temperature control component 6. The temperature difference of areas with different heights in the crucible 1 can be realized by independently controlling the upper temperature control assembly 5 to increase the heating power and the lower temperature control assembly 6 to reduce the heating power and even turn off the heating, so that the crystallization speed of the area can be reduced by properly increasing the temperature of the molten aluminum 2 close to the liquid level area, and the uniform crystallization of the whole cooling tube 3 can be realized. The temperature control assemblies 5, 6 may be temperature control devices commonly used in the art, such as heating wires and the like.
In the embodiment, the structure and control of the components such as the cooling tube assembly, the crucible 1 and the like are optimized, so that the crystallization rate of the molten aluminum 2 close to the liquid level region is reduced, the crystallization rate of the molten aluminum 2 is improved, and the uniform crystallization of the molten aluminum 2 on the whole surface of the cooling tube 3 is finally realized.
Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the above description of the present invention, and equivalents also fall within the scope of the utility model as defined by the appended claims.
Claims (6)
1. The cooling pipe assembly for molten aluminum crystallization purification is characterized by comprising a cooling pipe, wherein an inner pipe penetrates through the cooling pipe, an opening at the bottom end of the inner pipe is close to the bottom of the cooling pipe, and the bottom surface of the cooling pipe is a spherical surface with the diameter expanded.
2. The cooling tube assembly for use in the devitrification purification of molten aluminum of claim 1, wherein the bottom end opening of the inner tube is flared.
3. An aluminum purification apparatus, comprising:
a crucible for containing molten aluminum;
the cooling tube assembly for the devitrification purification of the molten aluminum according to claim 1 or 2, which is inserted into the crucible to crystallize the aluminum.
4. The aluminum purifying apparatus as recited in claim 3, wherein a plurality of sets of temperature control members are provided outside the crucible at different heights and independently controlled for adjusting the temperature of the corresponding region in the crucible.
5. The aluminum purification apparatus of claim 3, wherein the crucible has a heat insulating cover, and the heat insulating cover has a through hole for passing the cooling pipe therethrough.
6. The aluminum purification apparatus of claim 3, wherein the cooling pipe and the inner pipe are respectively and independently externally connected with a cooling gas supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121738744.5U CN215572196U (en) | 2021-07-28 | 2021-07-28 | Cooling tube assembly for crystallization and purification of molten aluminum and aluminum purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121738744.5U CN215572196U (en) | 2021-07-28 | 2021-07-28 | Cooling tube assembly for crystallization and purification of molten aluminum and aluminum purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215572196U true CN215572196U (en) | 2022-01-18 |
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ID=79829525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121738744.5U Active CN215572196U (en) | 2021-07-28 | 2021-07-28 | Cooling tube assembly for crystallization and purification of molten aluminum and aluminum purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215572196U (en) |
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2021
- 2021-07-28 CN CN202121738744.5U patent/CN215572196U/en active Active
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