Method and installation of treating raw material for...

Details Method and installation of treating raw material for... Method and installation of treating raw material for...

F - Mech Eng,Light,Heat,Weapons

27

B

39/20

F27B 7/20 (2006.01) C04B 7/43 (2006.01)

Patent

CA 1048267

Abstract of the Disclosure Raw material for making cement is treated in an installation comprising a plurality of superimposed cyclones constituting a multi-stage exchanger wherein the solid raw material and gases issuing from a clinkerization furnace circulate counter currently, and wherein at least a portion of the raw material issuing from the penultimate exchanger stage is injected into the gas current produced by the furnace. The raw material is injected in the form of a "curtain", or "screen", into in upstream section of the furnace. This novel method and the novel device for carrying out said method allow the building-up of deposits upstream of the furnace to be eliminated.

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