抄録
In this paper, the strength of dry pellets formed from fine grains of glass, feldspar, hematite, and quartz was investigated.
From the experimental results, it has been found that the strength of dry pellets of the ground products can be expressed by the equation (1) which is a modified theoretical tensile strength equation for the dry pellets of spheres obtained by introduction of the idea of maximum porosity for uniform packing structure of the ground material. It is recognized experimentally that a, b, and H in Eq. (1) change with the shape of particles.
S=1/Dav2·{31(a-ε)2+1}·eb(a-ε)·H (1)
where S is the tensile strength of dry pellets, Dav is the mean diameter, a is the maximum porosity, ε is the porosity of pellets, b is a constant and H is the bonding force at point of contact.
