Charbonnages De France

Jean C Kita

Roger M Puff

Gerard Chrysostome

Serge L Delessard

Ange Virgilio

Alain Feugier

Fluidizing apparatus comprises a grid defining cavities and main fluidizing gas blower channels connected to these cavities. Complementary channels pass through openings in swellings at the intersections of the cavities. Their upper ends are above the level of the grid. They are adapted to blow a complementary gas into an active area disposed above each swelling. A heat exchanger is adapted to exchange heat with the fluidized bed. It comprises at least one tube shaped so as to extend over the grid and through a plurality of these active areas. The rate of heat exchange may be modified by altering the complementary gas flowrate, without modifying the fluidization velocity.

Fluidizing apparatus with built-in heat exchanger

Hearth and process for fluidized-bed treatment of a fuel

Apparatus for supplying gas to a fluidization grid which has two separate supply circuits, one for compressed air and one for fluidizing air, the orifices of each circuit ending at the pyramids of the grid. The orifices of each circuit, are arranged in groups, and are connected by pipes to a stator cylinder in which a rotatable rotor tube extends. A motor is arranged to rotate the rotor tube to a number of predetermined positions. The rotor tube is connected to a supply pipework and is pierced with passage openings which are arranged upon rotation of the rotor tube to correspond to the pipes.

Apparatus for supplying a controlled flow of gas to a fluidized grid

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Forbach, France

Jean C Kita