  In this paper, we discuss diameter bound and Gromov-Hausdorff convergence of
a twisted conical K\"ahler-Ricci flow on the total spaces of some holomorphic
submersions. We also observe that, starting from a model conical K\"ahler
metric with possibly unbounded scalar curvature, the conical K\"ahler-Ricci
flow will instantly have bounded scalar curvature for $t>0$, and the bound is
of the form $\frac{C}{t}$. Several key results will be obtained by direct
arguments on the conical equation without passing to a smooth approximation. In
the last section, we present several remarks on a twisted K\"ahler-Ricci flow
and its convergence.
