Numerical Simulation of Dust Removal by Stroke Knife Block at Laser Die-cutting Station
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摘要: 为了验证锂离子电池激光模切工位中除尘系统的可靠性，以激光模切工位腔体中喷射颗粒运动过程为研究对象，对腔体中粉尘颗粒运动过程进行仿真。提出了风刀射流风幕阻断除尘的工作原理，同时对整个风刀阻断除尘过程进行仿真研究，得到了粉尘颗粒运动轨迹规律，统计出腔体中粉尘颗粒最终去向占比依次为系统除尘（61.07%）>附着壁面（21.25%）> 附着极片（10.01%）> 逃逸（7.69%）。Abstract: In In order to verify the reliability of the dust removal system in the laser die-cutting station of lithium-ion battery, the movement process of jet particles in the laser die-cutting station cavity was taken as the research object, and the movement process of dust particles in the cavity was simulated.The working principle of air curtain blocking dust removal by air knife jet was proposed. Meanwhile, the simulation of the whole process of air knife blocking dust removal was carried out so as to obtain the movement track law of dust particles.According to the statistics, the proportion of the final destination of dust particles in the exit cavity was followed by system dust removal (61.07%) > attached wall surface (21.25%) and > attached pole plate (10.01%) and > escape (7.69%).
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Key words:
- wind knife /
- dust particle /
- blocking dust removal /
- jet air curtain /
- trajectory
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表 1 颗粒去向统计表
粒径/μm 数量 P1/% P2/% P3/% P4/% 1 1 000 66.26 0.33 33.08 0.35 5 1 000 91.29 1.35 7.34 0.05 8 1 000 67.84 22.17 5.63 4.36 12 1 000 46.74 35.29 2.66 15.32 15 1 000 33.23 47.09 1.32 18.36 总计 5 000 61.07 21.25 10.01 7.69 
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