In recent years, thanks to the rapid development of the electric vehicle industry, lithium battery materials are widely used in the production process of positive electrodes, negative electrodes and diaphragms of battery cells, whether it is bicarbonate or ternary lithium. These materials need to be calcined in a rotary kiln before they can be ground. J. Parker conducted in-depth research and development of a low-nitrogen burner for natural gas heating in rotary kilns. While meeting the high-temperature control accuracy, it ensures that nitrogen oxide emissions are at an extremely low level, supporting the development of "green electricity" technology from the source.