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Coal gasification plant

Patent ·
OSTI ID:5857063
A slagging gasifier has a hearth comprising an annular solid cast structure formed from a high thermal conductivity metal such as copper and shaped to fit above a slag tap of the gasifier. The hearth is provided with one or more integrally formed passageways for circulating a coolant liquid therethrough and has an upper tundish surface with a slope of at least 10/sup 0/ to the horizontal (preferably between 25/sup 0/ and 45/sup 0/), across which tundish surface the molten slag flows downwardly and inwardly towards the slag tap. The annular structure may be formed from at least three sector-shaped cast parts secured together in situ in the gasifier.
Assignee:
British Gas Corporation (United Kingdom)
Patent Number(s):
US 4487612
OSTI ID:
5857063
Country of Publication:
United States
Language:
English

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