  We study the dynamics about equilibria of an infinite dimension
coagulation-fragmentation-death model for the silicosis disease mechanism
introduced recently by da Costa, Drmota, and Grinfeld [Modelling silicosis:
structure of equilibria, Euro. J. Appl. Math., 31 (6), (2020) 950-967] in the
case where the rate coefficients are piecewise constant.
