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
- Patent Title: Bowl mill for a coal pulverizer with an air mill for primary entry of air
- Patent Title (中): 用于空气磨机的煤粉碎机的碗磨机用于初级进入空气
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Application No.: US11878628Application Date: 2007-07-25
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Publication No.: US07673827B2Publication Date: 2010-03-09
- Inventor: Siddhartha Biswas , Krishnamuty Venkataramani
- Applicant: Siddhartha Biswas , Krishnamuty Venkataramani
- Applicant Address: IN New Delhi
- Assignee: Bharat Heavy Electricals, Ltd.
- Current Assignee: Bharat Heavy Electricals, Ltd.
- Current Assignee Address: IN New Delhi
- Agency: Merek, Blackmon & Voorhees LLC
- Agent Catherine M. Voorhees
- Priority: IN694/DEL/03 20030513
- Main IPC: B02C9/04
- IPC: B02C9/04 ; B02C19/00

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.
Public/Granted literature
- US20070290088A1 Bowl mill for a coal pulverizer with an air mill for primary entry of air Public/Granted day:2007-12-20
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