Grate assembly for fixed-bed coal gasifier

Details Grate assembly for fixed-bed coal gasifier Grate assembly for fixed-bed coal gasifier

1992-07-14

1993-07-27

Kratz, Peter

Gas: heating and illuminating

Generators

Cupola

48 63, 48 66, 48 77, 48 87, 126182, C10J 342

Patent

active

052307166

ABSTRACT:
A grate assembly for a coal gasifier of a moving-bed or fixed-bed type is provided for crushing agglomerates of solid material such as clinkers, tailoring the radial distribution of reactant gases entering the gasification reaction zone, and control of the radial distribution of downwardly moving solid velocities in the gasification and combustion zone. The clinker crushing is provided by pinching clinkers between vertically oriented stationary bars and angled bars supported on the upper surface of a rotating conical grate. The distribution of the reactant gases is provided by the selective positioning of horizontally oriented passageways extending through the grate. The radial distribution of the solids is provided by mounting a vertically and generally radially extending scoop mechanism on the upper surface of the grate near the apex thereof.

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