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US 2024/0158277 A1Published application
Gas-burning furnace
AssigneeRockwool A/S
InventorLars Elmekilde HANSEN
Life of this patent
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Abstract
The present invention provides an apparatus and a method for operating a cyclone combustion furnace using gaseous fuel.
Claims15
A method of making mineral melt, the method comprising:
- providing a cyclone furnace, particulate mineral raw material, gaseous fuel, and oxidising agent;
- injecting gaseous fuel into the furnace at one or more first injection ports;
- injecting oxidising agent into the furnace at one or more second injection ports;
- injecting mineral raw material into the furnace at one or more third injection ports,
- wherein the gaseous fuel, oxidising agent and mineral raw material are all injected into the top of the furnace;
- and
- allowing the gaseous fuel to combust with the oxidising agent, thereby melting the mineral raw material,
- wherein each first injection port is spaced at an angular separation from the one or more second injection ports such that no first injection port is at an angular separation of less than 20 degrees from any of the second injection ports, measured about a vertical axis through the centre of the cyclone furnace.
5 more elements
A cyclone furnace for melting mineral raw material, the cyclone furnace comprising:
- a furnace body;
- a furnace lid;
- one or more first injection ports for injecting gaseous fuel into the furnace;
- one or more second injection ports for injecting oxidising agent into the furnace;
- and
- one or more third injection ports for injecting mineral raw material into the furnace,
- wherein the furnace body comprises a top section, a central section and a bottom section, each first injection port is spaced at an angular separation from the one or more second injection ports such that no first injection port is at an angular separation of less than 20 degrees from any of the second injection ports, measured about a vertical axis through the centre of the cyclone furnace, and
- wherein each of the first, second and third injection ports are configured to inject the gaseous fuel, oxidising agent and mineral raw material, respectively, into the top of the furnace.
5 more elements
Dependencies are inferred from the claim text.