Search

CN-224221298-U - Carbon nano tube high-temperature purification crucible

CN224221298UCN 224221298 UCN224221298 UCN 224221298UCN-224221298-U

Abstract

The utility model provides a carbon nanotube high temperature purification crucible, includes crucible body and crucible cover, and the top opening of crucible body forms the import and export that makes things convenient for carbon nanotube to put in and take out, this internal detachable of crucible is equipped with the crucible cover, the crucible cover is separated into the purification district of downside and the buffer memory district of upside with this internal division of crucible, a plurality of exhaust holes have evenly been laid to the crucible cover, and first exhaust hole is with purification district and buffer memory district intercommunication. The device effectively solves the problems of heavy crucible and incomplete removal of gasified impurities, and has longer service life and better heat conduction performance, thereby reducing industrial cost and energy consumption.

Inventors

  • XIA LIHONG
  • LIAO JIQIAO
  • CHENG RUQI
  • CHEN DA

Assignees

  • 湖南京舟股份有限公司

Dates

Publication Date
20260512
Application Date
20241216
Priority Date
20241209

Claims (7)

  1. 1. The high-temperature carbon nanotube purifying crucible is characterized by comprising a crucible body (1) and a crucible cover (3), wherein an inlet and an outlet which facilitate the putting in and taking out of carbon nanotubes are formed in the top opening of the crucible body (1), the crucible cover (3) is detachably assembled in the crucible body (1), the crucible cover (3) divides the interior of the crucible body (1) into a purification area (2) at the lower side and a cache area (6) at the upper side, a plurality of first exhaust holes (4) are distributed on the crucible cover (3), and the purification area (2) is communicated with the cache area (6) through the first exhaust holes (4).
  2. 2. The carbon nanotube high-temperature purification crucible as claimed in claim 1, wherein an annular step groove is formed in the inner wall of the upper side of the crucible body (1), the diameter of the crucible cover (3) is matched with the outer diameter of the annular step groove, and the crucible cover (3) is installed in the crucible body (1) through the annular step groove.
  3. 3. The carbon nanotube high-temperature purification crucible of claim 1, wherein the diameter of the first vent hole (4) is 0.5-5.0 mm.
  4. 4. The carbon nanotube high-temperature purification crucible of claim 1, wherein the height of the buffer area (6) is 30-100 mm.
  5. 5. The carbon nanotube high-temperature purification crucible according to claim 1, wherein the crucible body (1) is a crucible body made of a carbon-carbon composite material, and the crucible cover (3) is a crucible cover made of a carbon-carbon composite material.
  6. 6. The carbon nanotube high temperature purification crucible of any one of claims 1 to 5, wherein the crucible body (1) is provided with a through hole on a side wall of the buffer zone (6) to form a second exhaust hole (5), an annular clamping groove (7) matched with the top opening of the crucible body is arranged at the bottom of the crucible body (1), and in a stacking state, the bottom of the upper crucible body (1) is clamped in the top opening of the lower crucible body (1) through the annular clamping groove (7).
  7. 7. The carbon nanotube high-temperature purification crucible as claimed in claim 6, wherein the diameter of the second exhaust hole (5) is 0.5-5.0 mm.

Description

Carbon nano tube high-temperature purification crucible Technical Field The utility model relates to the technical field of crucibles for high-temperature purification, in particular to a carbon nano tube high-temperature purification crucible. Background Carbon Nanotubes (CNTs) are tubular nanostructures made of carbon atoms, with single-or multi-wall morphology. They have extremely high strength, excellent electrical and thermal conductivity, diameters typically between a few nanometers and tens of nanometers, and lengths up to the order of meters. Due to the unique physical and chemical properties, the carbon nanotubes have great application potential in the fields of electronic devices, composite materials, energy storage and the like. However, impurities such as amorphous carbon, metal catalysts and the like are often generated in the actual production and preparation process of the carbon nanotubes, and the impurities seriously affect the performance and the application of the carbon nanotubes. Therefore, the purification of the carbon nano tube is a key step for realizing the application of the carbon nano tube in the fields of electronics, energy sources and the like. The impurities are removed, the purity of the carbon nano tube is improved, and the reliability and the stability of the carbon nano tube in high-performance application can be greatly ensured. Currently, the mainstream carbon nanotube purification methods include an oxidation method, an acid washing method and a high-temperature purification method. The oxidation method mainly removes amorphous carbon in the carbon nano tube, and the acid washing method and the high-temperature purification method mainly remove impurities such as metal. The waste liquid treatment of the acid washing method has high environmental protection requirement, and the metal purification capability is limited, and the current method for further obtaining the high-purity carbon nano tube is still a high-temperature purification method. In the vacuum high-temperature purification method, a crucible is a key tool for containing the carbon nano tube and bearing high temperature, but the traditional crucible at present cannot meet the problem that gasified impurities are not thoroughly removed during carbon nano tube purification, and on the other hand, the traditional crucible is heavy, has limited thermal shock resistance and high-temperature heat conduction capacity, so that the carbon nano tube purification consistency is poor and the purity is not high. Disclosure of utility model The utility model solves the defects of the prior art and provides the carbon nano tube high-temperature purification crucible which is light and thin, convenient for removing gasified impurities, long in service life and excellent in heat conduction performance. In order to achieve the above object, the utility model provides a carbon nanotube high-temperature purification crucible, which comprises a crucible body and a crucible cover, wherein an inlet and an outlet which facilitate the carbon nanotube to be put in and taken out are formed in the top opening of the crucible body, the crucible cover is detachably assembled in the crucible body, the crucible cover divides the inside of the crucible body into a purification area at the lower side and a buffer area at the upper side, a plurality of first exhaust holes are uniformly distributed on the crucible cover, and the purification area is communicated with the buffer area through the first exhaust holes. In this embodiment, be provided with annular step groove on the inner wall of crucible body upside, the diameter of crucible lid and the external diameter size phase-match in annular step groove, the crucible lid passes through annular step groove and installs in the crucible body. In this embodiment, the diameter of the first vent hole is 0.5 to 5.0 mm. In this embodiment, the height of the buffer area is 30-100 mm. In this embodiment, the crucible body is a crucible body made of a carbon-carbon composite material, and the crucible cover is a crucible cover made of a carbon-carbon composite material. In this embodiment, the through-hole has been seted up on the lateral wall of buffer zone to the crucible body and has been formed the second exhaust hole, the bottom of crucible body is equipped with the annular draw-in groove with crucible body open-top assorted, and during the stacked state, the bottom of upper side crucible body passes through annular draw-in groove clamping in the crucible body open-top of downside. In this embodiment, the diameter of the second vent hole is 0.5 to 5.0 mm. By adopting the structure, the utility model has the following advantages: 1. The crucible cover is provided with the uniform exhaust holes, so that the generated gasified impurities can be discharged more smoothly through the exhaust holes of the crucible cover in the high-temperature purification process of the carbon nano tube, and after th