| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage VI
|
| Presentation Title |
Study on Oxygen Lance Injection Technology of High Nickel Ternary Cathode Material Roasting Process in Roller Hearth Furnace |
| Author(s) |
Zhong-Ling (Rocky) Wei, Joachim Von Scheele, Zhang Gang, Qian Xu |
| On-Site Speaker (Planned) |
Zhong-Ling (Rocky) Wei |
| Abstract Scope |
The roller hearth furnace is used commonly in the high nickel ternary material roasting process. Base on CFD analysis and operating data, it has been found that the temperature and atmosphere inside the furnace is rather uneven in the heat-up and holding zones. In order to improve atmosphere uniformity and oxygen utilzation, an oxygen lance and atmosphere control system was developed and installed in one pilot line for trial. The roasting process for the cathode material was examined and optimized by tests in the furnace with different lance positions and oxygen injection rates. It could be concluded that the oxygen injections significantly increased and enhanced the reactions of the high nickel materials. It is possible to draw a reaction picture from the inside of the furnace, and one realizes that the reaction is strongest at the beginning, and the speed of the internal reactions increases due to the emergence of the new generated CO2. These subsequent reactions can also be influenced and optimized via the lances. The results prove the roasting process has room for further improvements and cost reductions by optimising the energy input at the heat up, and some suggestions are presented. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |