Particulate solids injector apparatus

Claim 2

Apparatus according to claim 1 wherein said metering means comprises a metering disc mounted coaxially on said rotatable shaft member and having a plurality of cavities extending through said metering disc and being circularly arranged in spaced relation proximate to the edge of said metering disc.

Claim 3

Apparatus according to claim 1 wherein said gas entrainment means includes an entrainment chamber disposed below said lower portion of said reservoir comprising a cylindrical tube, a tangential side port for the admission of pressurized gas into said cylindrical tube, an inlet for receiving finely divided material from said metering means, and a reservoir discharge valve communicating with said conduit means for discharging gas and entrained finely divided materials into said conduit means.

Claim 4

Apparatus for injecting finely divided solid materials into a reaction chamber comprising, in combination, a pressurizable particulate solids reservoir having an upper portion and a lower portion separated by selecting means, a rotatable shaft member extendng downward through said upper portion and said lower portion of said reservoir, said selecting means beng adapted to contain in said upper portion of said reservoir finely divided solid materials and to advance from said upper portion of said reservoir to said lower portion of said reservoir particles of said finely divided solid materials having a predetermined particle size, said selecting means comprising a screening section having a screen situated between said upper and lower portions of said reservoir and being concentrically disposed with respect to said rotatable shaft member and having a screen mesh size sufficient to permit only particles having said predetermined particle size to pass therethrough, gas entrainment means detachably secured to said lower portion of said reservoir and being adapted to entrain therein finely divided solid materials and comprising an entrainment chamber below said lower portion of said reservoir and comprising a cylindrical tube, a tangential side port for the admission of pressurized gas into said cylindrical tube, an inlet for receiving finely divided material into said cylindrical tube from said lower portion of said reservoir, and a discharge valve for discharging gas entrained finely divided solid materials from said cylindrical tube, metering means disposed intermediate said selecting means and said gas entrainment means and adapted to meter predetermined amounts of finely divided materials from said selecting means to said gas entrainment means, conduit means adapted to provide fluid flow communication between said discharge valve and said reaction chamber and comprising a capillary tube having an inside diameter of 0.030 to 0.125 inches, and conduit release means for releasing said conduit means from said reaction chamber.

Claim 5

Apparatus according to claim 1 wherein said conduit release means include a plug valve disposed adjacent and in contact with said reacTion chamber and packing means disposed adjacent said valve means, said valve, packing means and reaction chamber having a common passage adapted to accommodate said capillary tube.

Claim 6

Apparatus according to claim 6 wherein said packing means include a packing gland seal having a housing, an inner portion defining a partially threaded passageway, and a packing follower adapted to be engaged in said threaded passageway.

Claim 7

Apparatus according to claim 1 wherein said capillary tube has an inside diameter of about 0.030 to about 0.090 inches.

Claim 8

Apparatus for injecting finely divided solid materials into a reaction chamber comprising, in combination, a pressurizable particulate solids reservoir having an upper portion and a lower portion, a rotatable shaft member extending downward through said upper portion and said lower portion of said reservoir, selecting means disposed between said upper portion and said lower portion of said reservoir and being adapted to contain in said upper portion finely divided solid materials and to advance from said upper portion to said lower portion of said reservoir particles of said finely divided solid material having a predetermined particle size, said selecting means comprising a screening section having a screen situated between said upper and lower portions of said reservoir, said screen being concentrically disposed with respect to said rotatable shaft member and having a screen mesh size sufficient to permit only particles having said predetermined particle size to pass therethrough, gas entrainment means detachably secured to said lower portion of said reservoir, said gas entrainment means being adapted to entrain therein finely divided solid materials and comprising an entrainment chamber disposed below said lower portion of said reservoir and comprising a cylindrical tube, a tangential side port for the admission of pressurized gas into said cylindrical tube, an inlet for receiving finely divided material into said cylindrical tube from said lower portion of said rservoir, and a reservoir discharge valve for discharging gas entrained finely divided solid materials from said cylindrical tube, metering means disposed intermediate said selecting means and said gas entrainment means and adapted to meter predetermined amounts of finely divided solid materials to said gas entrainment means from said selecting means, conduit means disposed in gas flow communication between said gas entrainment means and said reaction chamber and comprising a capillary tube having an inside diameter of 0.030 to 0.125 inches, and conduit release means for releasing said conduit means from said reaction chamber and comprising a plug valve disposed adjacent to and in contact with said reaction chamber, and packing means disposed adjacent said valve means, said plug valve, said packing means and said reaction chamber having a common passage therethrough adapted to accommodate said capillary tube, said packing means including a packing gland seal having a housing, an inner portion defining a partially threaded passageway, and a packing follower adapted to be engaged in said threaded passageway.