Tube mill
AssigneeKHD Humboldt Wedag GmbH
InventorsSiegfried Strasser, Albert Süsseger, Franz Göddecke, Alexander Hagedorn
Life of this patent
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Abstract
To construct a tube mill such that a simple and compact circulation grinding system can be created therewith, with little outlay in terms of machinery, that can also manage higher stock circulation rates without high operating costs, a tube mill is disclosed whose drop-delivery housing consists of two spaced stationary non-rotating side faces, between which a rotatably mounted material conveyor ring is arranged, which can be rotated; whereby a sifting space with a dynamic sifter and/or a static sifter is integrated in this so constructed drop-delivery housing.
Claims20
A tube mill having a rotatably mounted mill tube with a grinding stock input end with at least one inlet opening and a ground stock delivery end with at least one outlet opening for discharging fine material and oversized material comprising:
- a drop-delivery housing comprising at least two spaced apart stationary side faces and a conveyor ring extending between said side faces to enclose an intermediate space forming a sifting space, said conveyor ring rotatably mounted relative to said side faces,
- a drive mechanism engaging said conveyor ring to rotate it relative to said side faces, said mill tube extending into said intermediate space through one of said side faces such that said outlet opening in said grinding stock delivery end is positioned within said intermediate space,
- a sifting air intake opening extending through at least one of said side faces into said intermediate space,
- a delivery exit opening for sifting air and sifted fine material in at least one of said two side faces from said intermediate space, and
- a delivery exit opening for sifted oversized material in at least one of said two side faces from said intermediate space.
A tube mill comprising a two-chambered rotatably mounted mill tube with a grinding stock input for both chambers comprising at least one inlet opening arranged at each end of said tube and a ground stock delivery outlet opening located centrally along said tube for discharging fine material and oversized material comprising:
- a drop-delivery housing comprising at least two spaced apart stationary side faces and a conveyor ring extending between said side faces to enclose an intermediate space forming a sifting space, said conveyor ring rotatably mounted relative to said side faces,
- a drive mechanism engaging said conveyor ring to rotate it relative to said side faces, said mill tube extending through said intermediate space through said two side faces such that said ground stock delivery outlet opening is positioned within said intermediate space,
- at least one sifting air intake opening for said drop-delivery housing extending through at least one of said side faces into said intermediate space,
- at least one delivery exit opening for said drop-delivery housing for sifting air and sifted fine material in at least one of said two side faces from said intermediate space, and
- at least one delivery exit opening for said drop-delivery housing for sifted oversized material in at least one of said two side faces from said intermediate space.
Dependencies are inferred from the claim text.