| 摘要 |
A blast furnace charging system (12) for feeding charge material into the hearth of a blast furnace (10) comprises at least two hoppers (16, 16') for temporarily storing charge material, each hopper (16, 16') comprising a discharge assembly (30, 30') for feeding the charge material from the respective hopper (16, 16') into the hearth of a blast furnace (10). The discharge assembly (30) comprises an inclined discharge channel (36) having, at its lower end, a material gate (38) providing charge material flow control at the lower end of the discharge channel (36); and a protection ring (50) arranged in the vicinity of the material gate (38) for leading charge material from the discharge channel (36) to a seal seat (46) of the discharge assembly (30). The discharge assembly (30) further comprises a heated panel (52) arranged on the protection ring (50), the heated panel (52) being formed by a panel-like copper body (66) having fluid channels (70) arranged therein so as to form a channel leading from a fluid inlet (72) to a fluid outlet (74).
|
