Improvement on Cleaning System of SIROX Tobacco Expander Guiping Wu, Wei Ding, Mingxing Li, Kaihua Yang, Feng Xie, Qisheng Chen and Hanying Li MATEC Web Conf., 139 (2017) 00132 Published online: 05 December 2017 DOI: 10.1051/matecconf/201713900132