Method for adjusting the supply of a reaction gas to be fed into

Details Method for adjusting the supply of a reaction gas to be fed into Method for adjusting the supply of a reaction gas to be fed into

1994-09-23

1996-08-06

Bennett, Henry A.

Furnaces

Process

110348, 110261, 110265, 110104B, F23D 100, F23C 110, F23K 302

Patent

active

055423612

ABSTRACT:
The invention relates to a method for feeding a reaction gas, such as oxygen or oxygen-enriched air to a flash smelting furnace through a concentrate burner, so that the gas is fed in around a pulverous material distribution channel located in the middle of the burner. Oxygen or oxygen-enriched air is fed into the reaction shaft through tubular channels in several separate gas jets, and the discharge velocity of the gas jets is adjusted. The invention also relates to an apparatus for feeding reaction gas through a concentrate burner to a flash smelting furnace (4), wherein the reaction gas is fed in around a pulverous material distribution channel (3) located in the middle of the concentrate burner, in which channel there is formed an annular burner chamber (8) inside which the reaction gas is made to flow into the reaction shaft (5) essentially through gas distribution tubes (9) parallel to the vertical axis of the reaction shaft, at least at their bottom end, so that at the top end of the gas distribution tubes there is installed an adjusting member (10) adjusting the discharge velocity of the reaction gas.

REFERENCES:
patent: 3989443 (1976-11-01), Campbell
patent: 4490170 (1984-12-01), Lilja et al.
patent: 4630554 (1986-12-01), Sayler et al.
patent: 4928605 (1990-05-01), Suwa et al.
patent: 5347937 (1994-09-01), Vatsky

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