초록 ▼

A container (12) which is arranged at least approximately rotational symmetrical with respect to an at least approximately vertical container axis (A) has an interior which is made up of an inlet chamber (30) adapted to be traversed from the bottom to the top by a gas, in particular dry air, and a v

A container (12) which is arranged at least approximately rotational symmetrical with respect to an at least approximately vertical container axis (A) has an interior which is made up of an inlet chamber (30) adapted to be traversed from the bottom to the top by a gas, in particular dry air, and a vortex chamber (32) which is arranged above the inlet chamber (30) and formed for fluidizing the material (10). Between the inlet chamber (30) and vortex chamber (32) a ring of guide plates (34) is arranged which, seen in the direction of the container axis (A), overlap each other and impart a twist to the upwardly directed gas flow. Between the guide plates (34) lances (40) are arranged at least approximately radially to the container axis (A) and each comprise at least one nozzle (42) arranged in the flow direction of the gas for introducing granulation substances into the vortex chamber (32). By the nozzles (42) large amounts of pulverulent and/or liquid substance per unit time may be sprayed into the vortex chamber (32) without the material forming lumps in uncontrollable manner or appreciable amounts of the substance depositing in the container (12).

대표청구항 ▼

Fluidized bed apparatus for the production and/or further treatment of granulate material comprising a container which is at least approximately rotational symmetrical with respect to an at least approximately vertical container axis (A) and the interior of which is made up of an inlet chamber adapt

Fluidized bed apparatus for the production and/or further treatment of granulate material comprising a container which is at least approximately rotational symmetrical with respect to an at least approximately vertical container axis (A) and the interior of which is made up of an inlet chamber adapted to be traversed from the bottom to the top by a gas, and a vortex chamber which is arranged above the inlet chamber and formed for fluidizing the material and a ring of guide plates which impart a twist to the upwardly directed gas flow between inlet chamber and vortex chamber and nozzles for introducing granulation materials into the vortex chamber, characterized in that the guide plates overlap each other, seen in the direction of the container axis (A), and between the guide plates lances are arranged at least approximately radially to the container axis (A) and each have at least one nozzle arranged in the flow direction of the gas.