External mixing pressurized two-fluid nozzle and a spray drying method

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United States of America Patent

PATENT NO 9981200
SERIAL NO

13981800

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Importance

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Abstract

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Disclosed herein is an external mixing pressurized two-fluid nozzle for atomising a liquid by means of liquid pressure and gas, comprising an inner feed liquid pipe (1) extending axially between an upstream end and a downstream end, having a feed liquid conduit (2), a feed liquid inlet (3) positioned at the upstream end and a feed orifice (4) positioned at the downstream end, and a co-axial first gas pipe (5) extending radially outside the inner feed liquid pipe (1) and forming a first gas conduit (6) between the first gas pipe (5) and the inner feed liquid pipe (1), the first gas pipe (5) having a gas outlet slit (7) positioned at the downstream end. Said external mixing two-fluid nozzle provides a swirling motion of the gas, which combined with a pressurized feed liquid enables the production of spray dried powder at industrially applicable capacities with low energy consumption and a small particle size.

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Patent Owner(s)

  • GEA PROCESS ENGINEERING A/S

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fredsted, Soren Stenlose, DK 2 13
Jensen, Anders Bo Niva, DK 2 13
Sorensen, Per Bo Frederiksberg, DK 5 45

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