Apparatus for introducing dosed quantities of pulverulent...

Details Apparatus for introducing dosed quantities of pulverulent... Apparatus for introducing dosed quantities of pulverulent...

B - Operations, Transporting

65

G

302/22

B65G 51/00 (2006.01) B65G 53/46 (2006.01) C21B 5/00 (2006.01)

Patent

CA 1233859

A B S T R A C T "Apparatus for introducing dosed quantities of pulverulent materials into a pneumatic propulsion fluid " A device for introducing dosed quantities of pulverized solid materials into a carrier gas stream is presented. The device is particularly suitable for injecting solid materials into a vessel during metal refining. The device comprises a housing which defines a flow chamber in the axial direction for the flow of pressurized fluid or carrier gas. The housing also has a side aperture therethrough. The side aperture is connected to a container holding pulverized materials. Coaxial inner and outer sleeves, at least one of which is capable of rotation, are located within the housing. The outer sleeve communicates with the aperture while the inner sleeve has an axial bore which provides a passage for the carrier gas. Upon rotation of a sleeve, slots provided on each sleeve will align and overlap with each other and with the aperture to define a variable sized passage between the container and axial bore whereby the pulverized material is delivered therethrough to the carrier gas stream. The rotating sleeve forms an actual part of a driving shaft which is mounted coaxially in the box by means of two bearings and which is movable in the axial direction.

478075

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