Creusot-Loire

Heurtey Metallurgie

Roland Kissel

Robert Wang

The invention relates to a method and device for pulverizing a solid fuel material introduced inside a vessel by means of a screw conveyor through a die opening within the vessel and in which is formed by extrusion a roll of compressed material, the latter being disintegrated by at least one gas jet injected under high pressure. According to the invention the gas is injected from the inside of the conveyor and in the axis of each die, each gas jet having a sufficient momentum to form substantially a cone centered on the axis of the roll widening from the inside of the latter, each roll being constituted by a hollow tube whose inner wall crumbles and takes the shape of the jet liberating particles which are sucked into the jet and introduced into the vessel. The invention is particularly applicable to supplying a gasifying reactor.

Method and device for pulverizing a solid fuel material

An apparatus for the treatment of galvanized sheet-iron emerging from a galvanization bath in order to reduce to a minimum value the size of the 'minispangle' appearing on its surface comprises a housing divided into two identical casings spaced to form a vertical passage through which the sheet is caused to travel continuously, each casing comprising a spray nozzle and a pair of recovery slots disposed on either side of the nozzle, and blower means for directing an air stream loaded with zinc particles in suspension against the moving sheet surfaces so that the zinc particles will crystallize before the liquid zinc coating has set. The blower means produces the stream and recovers on its section side the previously blown air. Passages in the casings direct the air stream towards the spray nozzle and from the recovery slots.

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Le Vesinet, France

Roland Kissel