FIELD: process engineering.
SUBSTANCE: invention relates to device for injection of gas flow into fluidised bed of solid particles, particularly, to delivery nozzles of gas distributors. Proposed nozzle comprises tube with gas inlet and outlet, ID and axial length. Said gas inlet has multiple orifices to restrict the flow distributed over tube axial end. Said multiple orifices are radial flow restricting orifices distributed in circle to penetrate through said tube. Said radial flow restricting orifices extend through said tube on length L from tube inlet axial end nearest to said inlet. Note that length L is smaller than tube two IDs.
EFFECT: gas flow profile ruling out or decreasing nozzle erosion.
20 cl, 31 dwg, 5 ex
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