Creusot-Loire Entreprises

Usinor

Lafarge Sa

Creusot-Loire Enterprises

Gerald Namy

Jean A Cordier

A unit for diversion of a gas which may be hot, dust-laden, saturated with water vapor and containing water droplets, e.g. from steelworks converters, the unit enabling at one and the same time the flow of gases which it receives tangentially and horizontally from the gas collecting network (8) to be caused to flow either into a first vertical duct (14) directed upwards or into a second vertical duct (3) directed downwards, the water droplets and consequently part of the dust to be eliminated, and simultaneously gastightness to be ensured towards that one of these two ducts which is at the moment not being fed with gas, this unit being characterized in that it comprises a fixed body (1) containing a movable bell (2) capable of forming a water seal to ensure gastightness alternatively towards each of the two vertical ducts (14) (3), and in that the fixed body (1) being of special shape cooperates with the bell (2) in order to form a cyclone which eliminates the water droplets and part of the dust contained in the gas at the inlet to the body (1).

Gas diversion unit

A process and apparatus for manufacturing cement clinker in which pellets of raw material containing the necessary components for manufacturing the clinker are introduced into an apparatus where the pellets flow under gravity, successively through a preheating zone, a clinkering zone using a fluidized bed and a cooling zone. The pellets contain an amount of comminuted carbon determined so that its combustion produces an amount of heat within each pellet sufficient to carry out decarbonation of the material, taking into account the heat introduced by the hot gases passing upwardly through the apparatus. Decarbonation is completed at the base of the preheating zone and the pellets enter the clinkering zone at a temperature which is close to the clinkering temperature. Additional heat is supplied through burners within the clinkering zone.

Process and device for manufacturing cement clinker

A suction device for the wet extraction of dust from dust laden gas comprises a centrifugal rotor housed in a casing and rotatable about an axis, and means for projecting a wetting liquid into the rotor adjacent the gas inlet thereto, the rotor being provided with at least two sets of blades, the blades of each set being uniformly arranged in a crown and forming channels with at least one of the sidechecks of the rotor in which gas flows from the center towards the periphery, the leading and trailing edges respectively of the blades of the first set being located closer to the axis of the runner than the leading and trailing edges respectively of the blades of the second set, the leading edges of the blades of the first set being located near to but angularly spaced from the trailing edges of the blades of the second set.

Growing community of inventors

Saint-Etienne, France

Gerald Namy