초록 ▼

A method for the dense-phase flow of particulate solids utilizes a pressurized feeder and flow splitter which transports and equally divides particulate material at essentially the bulk density with only the gas contained in interstices of the solid particles being used to transport the particles. T

A method for the dense-phase flow of particulate solids utilizes a pressurized feeder and flow splitter which transports and equally divides particulate material at essentially the bulk density with only the gas contained in interstices of the solid particles being used to transport the particles. The feeder comprises a vessel which is pressurized, a gas source for pressurization and an outlet line with a full opening valve located immediately adjacent to the feeder. The loaded vessel containing particulate matter is pressurized, followed by opening the valve adjacent the feeder, the valve and relatively empty downstream line when flow is initiated being the key to successful operation of the dense-phase feeder. The downstream flow divider evenly distributes the dense-phase material to, for example, a multiplicity of feed passages in a multi-passage injector.

대표청구항 ▼

The method of transporting particulate solids in dense-phase flow comprising the steps of: filling a feeder vessel with particulate solids; sealing said feeder vessel; delivering carrier gas into said sealed feeder vessel through a pressure inlet line in an amount to provide an initial pressure in e

The method of transporting particulate solids in dense-phase flow comprising the steps of: filling a feeder vessel with particulate solids; sealing said feeder vessel; delivering carrier gas into said sealed feeder vessel through a pressure inlet line in an amount to provide an initial pressure in excess of that in a downstream feeder line; opening a valve connecting a lower portion of the feeder vessel to said downstream feeder line so as to discharge said solids at their bulk density by the pressure differential and resultant expansion of the gas in the interstices of said particulate solids; and delivering additional carrier gas only through said pressure inlet line to said vessel and in an amount both to maintain a pressure differential between said vessel and said feeder line and to cause the solids to flow from said vessel through said valve and feeder line at their bulk density.