front of the tuyere of a blast furnace

Abstract

1. Name of the designed product: the front part of tuyere of blast furnace. 2. Use of the designed product: the whole product is tuyere for sending air and reducing gas into blast furnace. Part of the product is the front part of tuyere of blast furnace. 3. Design points of the designed product: the part claimed. 4. Picture or photo best indicating the design points: design 2, perspective view 1. 5. Design 2 is designated as the basic design. 6. Other circumstances needing explanation: the part covered by semi-transparent purple color in the figure is not claimed.

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