Invention Grant
US07673827B2 Bowl mill for a coal pulverizer with an air mill for primary entry of air 失效
用于空气磨机的煤粉碎机的碗磨机用于初级进入空气

Bowl mill for a coal pulverizer with an air mill for primary entry of air
Abstract:
A bowl mill for a coal pulverizer with an air mill for primary entry of air, comprising a substantially closed separator body (2) having a central axis; and a bowl-like grinding table (3) mounted on a shaft (4) rotatable about said central axis, cooperating with a plurality of grinding rolls (6). The airmill is provided with multiple entry openings (17′, 17″; 18′, 18″; 21, 25) on the outer wall of the air mill for multiple entry of hot primary air from the inlets, resulting in better uniformity in air flow around the air mil section and for minimizing formation of eddies and vortices. As a variation of the multiple entry double entry openings can be arranged for entry of hot primary air.
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