Visualization mesh / grid in Paraview

I would like some help on how to visualize your mesh in paraview and how to manage the output file concerning the mesh from LIGGGHTS.

For my output files I always use the following type of commands:

# Concerning a Continuous Blending Machine (CBM)
dump dmp all custom 1000 post/dump*.CBM id type type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius

When I implement this and by using "lpp" to convert these files into .vtk files I obtain as a result a flow of all my particles, but I will NOT see the specifications of the mesh (I will just see a rectangular-like box (the Bounding-Box)). Maybe there are some tools of Paraview I am not aware of or maybe I should have a different type of output file from my LIGGGHTS simulation.

Please, let me know what your thoughts are upon visualizing the mesg / grid (in the final result).