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US 6,854,403 B2Granted
Refractory wall structure and damper device
AssigneeRenewable Energy Corporation Limited
InventorPaul Douglas Williams
Life of this patent
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Abstract
This invention relates generally to high temperature burners such as a solid fuel burner of the type commonly referred to as a gasifier or gasifier combustor. The invention includes a refractory wall structure having an array of tubular members. Refractory material is arranged about the tubular members so that the tubular members protrude from a wall defined by the refractory material by a distance smaller than the diameter of the tubular members.
Claims12
A burner including:
- first wall structure including a roof defining a first combustion chamber;
- generally curved wall structure defining a second combustion chamber which operates as a cycloburner;
- and
- slot port means arranged adjacent said roof through which the flow of hot combustible gases from said first chamber passes enroute to said second chamber where gas combustion takes place;
- wherein at least said roof or said curved wall structure are provided by a refractory wall structure including an array of tubular members exposed to the respective combustion chamber(s) and intervening refractory material arranged so that the tubular members protrude from a nominal internal wall surface defined by the refractory material by a distance smaller than the diameter of the tubular members.
2 more elements
A solid fuel gasifier including:
- first wall structure defining a gasification chamber;
- generally curved wall structure defining a combustion chamber which operates as a cycloburner and where gas combustion takes place;
- slot port means arranged for admitting a flow of hot combustible gases from said gasification chamber to said combustion chamber;
- and
- moveable control damper means mounted for controlling said flow of hot gases through the port means whereby to manage the respective combustion profiles in said chambers.
2 more elements
Dependencies are inferred from the claim text.