Clinker grinder seal in coal-burning utility electrical power ge

Details Clinker grinder seal in coal-burning utility electrical power ge Clinker grinder seal in coal-burning utility electrical power ge

1999-05-20

2000-10-31

Wilson, Pamela

Furnaces

Ash receiving and handling devices

Ashpans

110233, 277572, 277540, 432242, 241216, F23J 102

Patent

active

061385859

ABSTRACT:
A coal-burning utility electrical power generation plant includes a mill pulverizing coal and supplying same to a boiler for combustion. The boiler has a bottom ash hopper for receiving combustion products including clinkers, and a clinker grinder for grinding the clinkers. The clinker grinder includes a rotary drum in a grinding chamber and having grinding teeth and driven by a rotary shaft extending through a stuffing box assembly. The stuffing box assembly has a flushing fitting for supplying flushing fluid thereto and along the shaft and into the grinding chamber. A seal permits flushing fluid flow from the flushing fitting into the grinding chamber, and blocks reverse flow. Long life is provided without a grease fitting, and leakage is substantially reduced.

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"Chesterton 14K Restriction Bushing", HPD Doc No. hp14Kps.pdf, A.W. Chesterton Co., Middlesex Industrial Park, 225 Fallon Road, Stoneham, Massachusetts 02180-9101 USA, Feb. 1997, Oct. 1996.

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