| 摘要 |
PURPOSE: A multi-directional blower-type tuyere is provided to prevent melting damage to the tuyere by forming an opening part and to increase production and work stability by reducing temporary shutdown of a blast furnace caused by melting damage to the tuyere. CONSTITUTION: A multi-directional blower-type tuyere includes a hollow part (110) and an opening part (120). Wind passes through the cylindrical hollow part from the rear of a tuyere to the front of the tuyere. The opening part is formed at the front of the tuyere protruding to the inside of a blast furnace, and the wind passing through the hollow part can pass through the opening part. The opening part is formed only at the upper part of the tuyere, onto which molten iron falls. The opening part is formed at the lower part of the tuyere and the upper part of the tuyere, which faces the lower part and onto which molten iron falls. The diameter of an opening part formed at the foremost part of the tuyere is different from the diameter of other opening parts. [Reference numerals] (AA) Upper part of a winnower; (BB) Rear of a winnower; (CC) Front of a winnower; (DD) Horizontal line; (EE) Lower part of a winnower
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