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US 6,655,617 B2Granted
Drive system for a tube mill
AssigneeKHD Humboldt Wedag GmbH
InventorsAlexander Hagedorn, Norbert Aufsfeld
Life of this patent
Estimating the term…
Abstract
A simply and compactly built drive system for a tube mill is provided whose force transmission is no longer threatened by flexures and other deformations of the grinding tube. A one-piece ring gear having a diameter less than or equal to the diameter of the grinding tube is attached to the small diameter end of a discharge cone of the grinding tube.
Claims5
A rotary tube mill comprising:
- a grinding tube (10) mounted for rotation about a horizontal axis and having a stock feed end and a discharge end,
- a discharge cone (11) in the shape of a truncated cone having
- large diameter end rigidly secured in coaxial relation to said discharge end of said grinding tube (10) to provide the sole support for said discharge cone,
- a small diameter end closed by an end wall (14) and
- a plurality of circumferentially spaced radial discharge openings (12) formed in said discharge cone (11) permitting radial discharge of grinding stock and mill gas,
- a stationary stock discharge housing (13) circumferentially encompassing the portion of said discharge cone (11) in which said discharge openings (12) are formed, and
- a drive gear (15) rigidly secured to said small diameter end of said discharge cone (11), said drive gear (15) having a diameter smaller than the diameter of said grinding tube (10).
4 more elements
Dependencies are inferred from the claim text.