Patent ID: 6655617
Filing Date: 2003-12-02
Classification: B02C

Abstract:
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).