Secondary grinding section for an orifice plate of a grinding machine
AssigneeWeiler and Company, Inc.
InventorsChristopher E. Albrecht, Nick J. Lesar
Life of this patent
Estimating the term…
Abstract
An orifice plate with an outer grinding section and an inner grinding section is disclosed. The outer grinding section is the main grinding section leading to the main material collection stream, and an additional grinding section is present in the inner section of the orifice plate to remove useable material from material swept toward the center of the plate by the action of a rotating knife assembly on the plate. The useable material obtained at the inner section is also led to the main material collection stream.
Claims10
A grinding machine for grinding material that includes a combination of hard material and soft material, comprising a rotatable knife assembly and an orifice plate having a grinding surface and a series of outer primary grinding orifices that cooperate with the knife assembly to grind material supplied to the grinding surface, wherein the orifice plate includes an inner section having a plurality of spaced apart collection passages extending therethrough that are larger than the primary grinding orifices and are designed to collect hard material, wherein the outer primary grinding orifices are located in an outer section of the orifice plate located radially outward of the collection passages, and wherein the inner section of the orifice plate further includes an inner orifice section having a plurality of secondary grinding orifices that are smaller than the collection passages and are located inwardly of the primary grinding orifices and between the collection passages.
An orifice plate for a grinder for grinding material that includes a combination of hard material and soft material, comprising an outer grinding section with primary grinding openings that are configured to interact with a rotating knife assembly to grind material supplied to the orifice plate, and an inner section having a plurality of spaced apart hard material collection passage larger than the primary grinding openings and designed to collect hard material, wherein the outer primary grinding orifices are located in an outer section of the orifice plate located radially outward of the collection passages, and wherein the inner section of the orifice plate further includes an inner orifice section having a plurality of secondary grinding orifices that are smaller than the collection passages and are located inwardly of the primary grinding orifices and between the collection passages.
Dependencies are inferred from the claim text.