F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
39/1, 53/90
F27B 17/00 (2006.01) B01F 3/06 (2006.01) B01J 8/08 (2006.01) C22B 5/12 (2006.01) F23D 1/00 (2006.01)
Patent
CA 1198593
Abstract The method and apparatus for forming a directional and controlled suspension spray of a pulverous material and a reaction gas is intended for use in, for example, metallurgical processes and plants. In many metallurgical processes, e.g. 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 the method and apparatus according to the present inven- tion. The method according to the invention is characterized in that a pulverous material is directed into the reaction chamber mixed with part of the reaction gas, and the rest of the reaction gas is directed into the reaction chamber in at least three separate, at least partly turbulent sprays symmetrically around the flow of the pulverous material, and the reaction gas sprays 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. The apparatus according to the invention is, for its part, characterized in that around the member (3) for feeding a pulverous material there is coaxially situated a reaction gas distribution member (7), from which there depart at least three regulatable reaction gas discharge pipes (8) which are oriented towards the reaction chamber and situated symmetric- ally around the member for feeding the pulverous material.
415095
Lilja Launo L.
Makitalo Valto J.
Fetherstonhaugh & Co.
Outokumpu Oy
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