APPARATUS AND METHOD FOR ENTRAINING A POWDER IN A FLUID

摘要

An apparatus for entraining a powder in a process fluid is provided. The apparatus (2′) has a process passage (22) having a passage inlet (24) connectable to a source of process fluid, and a passage outlet (26). A nozzle (30) opens into the process passage (22) intermediate the passage inlet (24) and passage outlet (26). The nozzle (30) has a nozzle inlet (32), a nozzle outlet (36) and a nozzle throat (34) intermediate the nozzle inlet (32) and nozzle outlet (36), where the nozzle throat (34) has a cross sectional area which is less than that of the nozzle inlet (32) and nozzle outlet (36). At least one first port (42′) opens into the process passage (22) adjacent the nozzle outlet (36), and an entrainment fluid supply chamber (38) is in fluid communication with the nozzle 30. A first powder supply chamber (44′) is connected to the first port (42′) by a first powder supply passage (46), wherein the powder supply chamber (44′), powder supply passage (46) and first port (42′) are coaxial. A system and method of entraining a powder in a process fluid are also provided.

主权项

1. An apparatus for entraining a powder in a process fluid, comprising:
a process passage having a passage inlet connectable to a source of process fluid, and a passage outlet; a nozzle opening into the process passage intermediate the passage inlet and passage outlet, the nozzle having a nozzle inlet, a nozzle outlet and a nozzle throat intermediate the nozzle inlet and nozzle outlet, wherein the nozzle throat has a cross sectional area which is less than that of the nozzle inlet and nozzle outlet; at least one first port opening into the process passage adjacent the nozzle outlet; an entrainment fluid supply chamber in fluid communication with the nozzle; and a first powder supply chamber connected to the first port by a first powder supply passage, wherein the powder supply chamber, powder supply passage and first port are coaxial.