Crusher
OwnerMartin H. Gygiinventor
Life of this patent
Estimating the term…
Abstract
The crusher contains rotating hammers running on a circular path. The material to be crushed reaches this annular crushing zone via a distributing plate located above the hammers. In the crushing zone the material is hit by the hammers and broken. Fragments are thereby ejected tangentially into an impact zone, where they are received by impact plates. This causes further fragmentation. In this way, the material distributed over the whole circumference is subjected twice to a hard blow. This leads to an increased throughput at small crusher size and optimum crushing efficiency.
Claims17
A crusher for crushing material comprising rotating crushing hammers in a housing, said rotating crushing hammers being driven for rotating along a substantially circular path in a direction of rotation, said path defining an annular crushing zone for receipt of falling material to be crushed,
- an impact zone comprising a plurality of circumferentially distributed impact surfaces for receiving pieces of said material hit by said rotating crushing hammers,
- and a stationary, annular shoulder means positioned immediately below said crushing zone for collecting pieces of material otherwise falling through said crushing zone without being engaged by one of said rotating hammers and retaining said collected pieces in said crushing zone until engaged by one of said hammers, said annular shoulder means having a shoulder with a continuous surface which blocks sufficient space underlying said annular crushing zone such that the material must pass radially
- outward of the shoulder to exit the crusher.
Dependencies are inferred from the claim text.