High volume portable concrete batching and mixing plant having compulsory mixer with overlying supported silo

摘要

A first mixer trailer forms the plant frame foundation around a twelve-yard compulsory mixer. The compulsory mixer is mounted for elevation relative to plant frame foundation by hydraulic lifting columns. In system erection, a cement silo trailer is first mounted to the top of the compulsory mixer when the compulsory mixer is at ground level. Thereafter, both the mounted silo and the compulsory mixer are raised and pinned in place by the hydraulic lifting columns so that gravitational discharge of mixed concrete can occur directly from the compulsory mixer to an underlying transporting apparatus, usually a truck.