Fuel head assembly with replaceable wear components
AssigneeALSTOM Technology Ltd
InventorTheron Jamie Bliss
Life of this patent
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Abstract
A fuel head assembly (120) for a pulverized coal nozzle includes removeable back cover (123) that may be removed substantially horizontally to allow access to liners (141,143,145) inside of the fuel head assembly (120) for servicing. This may be used in places where there access from above the fuel head assembly (120) is restricted. The liners (141,143,145) are constructed of a wear-resistant material and include curved vanes (131,133) for more evenly distributing pulverized solid fuel particles, and for reducing erosion of the fuel head assembly (120).
Claims14
A fuel head assembly for directing pulverized solid fuel entrained in an airstream into a furnace, the fuel head assembly comprising:
- a casing being a generally surrounding,a curved central path, the casing having a top, bottom, a left side, a right side, a front side and back side, the casing having an inlet port on its front side, an outlet port on its bottom side, and an elbow opening between the inlet port and the outlet port on its back side;
- a back cover removably attached to the casing closing the elbow opening and creating tubular conduit fluidically coupling the inlet port to the outlet port;
- a casing liner that can be removed through the elbow opening made of wear-resistant material and disposed within the tubular conduit having at least one curved vane curved in an arcuate direction extending at least partially between the inlet port and the outlet port for directing the pulverized solid fuel and airstream from the inlet port to the outlet port and away from internal surfaces of the casing.
Dependencies are inferred from the claim text.