Authors:
Jing Zhang, Decong Zheng, Kai Wu, Xiuquan Zhang, Zhengguang Liu |
Abstract:
Caragana korshinskii Kom is an important feedstock for producing high-quality solid fuel which
possess excellent physical characteristic. In this study, the bonding mechanisms and failure
mechanisms at microscopic perspective were analyzed combining the physical characteristics of
briquettes. The Scanning electron microscope (SEM) images showed that bonding between
particles was created through short-range forces and solid bridge. The short-range forces in fine
particles could increase the density of briquette but could not resist the disruptive forces. The
solid bridges were made mainly by natural binders such as lignin and mechanical interlocking in
the fibers, flat shaped particles and bulky particles. The appropriate moisture and temperature in
the range of glass transition is essential to produce high quality briquettes. The interface failure
of solid bridge caused the destruction of bulky particles; the cohesive failure caused the
destruction of the fine particles |
