【摘要】 针对锂电池粉尘惰化装置总是出现物料结拱而无法保证锂电池生产的安全问题，对惰化装置进行优化研究。分析惰化装置系统主要结构及工作原理，建立输送系统料仓仓压数学模型，研究料仓仓压对惰性粉输送卸料率的影响，以此为基础结合搜索优化思想确定出料口尺寸范围；对气动破拱辅助送粉装置进行仿真分析，结合破拱机理优化气动破拱装置。结果表明：根据计算与实验分析结果，料仓仓压越大，惰性粉输送越困难，原惰化装置单次惰性粉添加量最大3.6 kg,而改进出料口尺寸为89 mm左右时可达20 kg；新型双倾斜喷嘴破拱结构相比于单喷嘴破拱效果提升30.9%；优化后的惰化装置未出现送粉中断问题，单次惰性粉添加量可达25 kg，每小时送粉量在0.16～0.37 kg波动。更多还原

【Abstract】 The optimization research for the inerting device is to solve the problem that the dust inerting device of lithium battery always forms material arch, which can not guarantee the safety of lithium battery production. Based on the analysis of the main structure and working principle of the inerting device system and the established mathematical model of silo pressure of the conveying system, the influence of silo pressure on inert powder conveying and discharging rate was studied. Combined with the influence and search optimization algorithm, the size range of the discharge port was determined. The optimization method of the pneumatic arch-breaking device is derived from the arch-breaking mechanism revealed by the numerically simulated and analyzed of the pneumatic arch-breaking auxiliary powder feeding device. The results showed that according to the calculation and experimental analysis results, the higher the silo pressure is, the more difficult it is to transport inert powder. The maximum amount of inert powder added in a single time is 3.6kg in the original structure, and the device with the improved outlet size of 89 mm is up to about 20 kg. Compared with the single nozzle, the arch-breaking effect of the new double inclined nozzle is improved by 30.9%. The optimized inerting device has no interruption of powder feeding, and the amount of inert powder can be up to 25 kg per time, and the amount of powder feeding per hour fluctuates between 0.16 kg and 0.37 kg.更多还原