Separation performance of fine low-rank coal by vibrated gas-solid fluidized bed for dry coal beneficiation

- Vibrated gas-solid fluidized bed (VGFB) was used to separate 1-6 mm sized fine low-rank coal.
- Segregation of lignite samples were investigated with various operating parameters.
- The optimal operating conditions were obtained for dry beneficiation of lignite.
- The separation performance of fine lignite was greatly improved by VGFB.