Fluid distribution across a particulate bed

Details Fluid distribution across a particulate bed Fluid distribution across a particulate bed

1996-01-03

1998-09-01

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Processes

Including mixing or combining with air, gas or steam

239423, 239424, 422106, 2611141, A62C 502

Patent

active

057998779

ABSTRACT:
A means and method for spraying liquid and gas onto and across a particulate bed includes a horizontal liquid distribution tray disposed over the bed containing a plurality of gas and liquid spray distributors extending through the tray. The distributors include separate gas and liquid conduits or pipes having an entrance on top and an exit below, with the exits proximate each other underneath the tray. The conduits are coaxial with a portion of the gas conduit surrounded by the liquid conduit to define an annular space between them for the liquid to flow downwardly through. The gas flows down through the gas conduit, exiting as a gas core surrounded by the downflowing liquid. The gas expands and contacts the surrounding liquid to spray it on the matter below. A liquid spray generating device is located below the gas and liquid exit. Siphon caps automatically provide pulse flow of the liquid. Combining the siphon caps with orifices or slots in the liquid conduit below the siphon line automatically provides both continuous and pulse spray of the liquid onto the bed below.

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