Three hopper charging installation for a shaft furnace

Australia Patent

PATENT NO 2006336052
APP PUB NO AU-2006336052-A1
SERIAL NO

2006336052

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Abstract

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A three hopper charging installation (10') for a shaft furnace is disclosed. It comprises a rotary distribution device (14) for distributing bulk material in the furnace by rotating a distribution member about the furnace central axis (A) and a first, a second and a third hopper (20, 22, 24) arranged in parallel above the rotary distribution device and offset from the central axis. A sealing valve housing (32') is arranged between the hoppers and the distribution device. It has a top part (46') with a first, a second and a third inlet (150, 152, 154) respectively communicating with the first, the second and the third hopper. A first, a second and a third sealing valve (170, 172) are provided in the top part. Each sealing valve comprises a flap (176) which is pivotable between a closed sealing position and an open parking position. The sealing valve housing also has a funnel shaped bottom part (48') with an outlet communicating with the distribution device. According to the invention, the top part (46') of the sealing valve housing (32') has a tripartite stellate configuration in horizontal section with a central portion (156), in which the inlets are arranged adjacently in triangular relationship about the central axis (A), and with a first, a second and a third extension portion (160, 162, 164), each sealing valve being adapted such that its flap opens outwardly with respect to the central axis by pivoting into a parking position located in the first, second or third extension portion respectively.

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