Method for forming a directional and controlled suspension spray

Details Method for forming a directional and controlled suspension spray Method for forming a directional and controlled suspension spray

1982-11-08

1984-12-25

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 74, 75 92, C22B 512

Patent

active

044901704

ABSTRACT:
A method for forming a directional and controlled suspension spray of a pulverous material and a reaction gas is intended for use in metallurgical processes and plants. In flash smelting, reaction gases are fed into a cylindrical vertical reaction chamber centrally through the top of the reaction chamber. The blasting in is via a specific blast-in member, into which the gases are usually directed horizontally for reasons of space use. This results in that the flow in the reaction chamber is asymmetrical. This disadvantage can be eliminated by means of a method according to the present invention. In the method according to the invention a pulverous material is directed into the reaction chamber mixed with a primary dispersion gas, a reaction gas directed into the reaction chamber in at least three separate, at least partly turbulent jets symmetrically around the flow of the pulverous material, and the reaction gas jets are caused in the reaction chamber to discharge into the flow of the pre-dispersed pulverous material in order to produce a turbulent but controlled suspension spray.

REFERENCES:
patent: 3306708 (1967-02-01), Bryk et al.
patent: 3563726 (1971-02-01), Elvander et al.
patent: 4392885 (1983-07-01), Lilja et al.

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