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The Scientific World Journal
Volume 2014, Article ID 435816, 5 pages
Research Article

Influence of the Feed Moisture, Rotor Speed, and Blades Gap on the Performances of a Biomass Pulverization Technology

1School of Environmental and Municipal Engineering, Qingdao Technological University, Qingdao 266033, China
2State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, China
3Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL 36849, USA

Received 28 August 2013; Accepted 17 November 2013; Published 22 January 2014

Academic Editors: T. Phuoc and S. Poncet

Copyright © 2014 Siyi Luo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Recently, a novel biomass pulverization technology was proposed by our group. In this paper, further detailed studies of this technology were carried out. The effects of feed moisture and crusher operational parameters (rotor speed and blades gap) on product particle size distribution and energy consumption were investigated. The results showed that higher rotor speed and smaller blades gap could improve the hit probability between blades and materials and enhance the impacting and grinding effects to generate finer products, however, resulting in the increase of energy consumption. Under dry conditions finer particles were much more easily achieved, and there was a tendency for the specific energy to increase with increasing feed moisture. Therefore, it is necessary for the raw biomass material to be dried before pulverization.