We perform computer simulations of an agglomeration process for monodisperse and polydisperse systems of spherical particles in a cylindrical container, using a simplified stochastic-hydrodynamic model. We consider a ternary system with three particle types A, B, and C, in which only connections of the type $$A-B$$
A
-
B
can be forged, while any other connections with particles of the same type or with C-particles are forbidden, and for comparison a binary system with two particle types A and C, in which only connections of the type $$A-A$$
A
-
A
can be formed. We study the breakdown of the percolation in the agglomeration at the bottom of the cylinder with an increasing fraction of C-particles.