Apparatus for introducing treatment substances into liquids
AssigneeInjectall Limited
InventorKenneth W. Bates
Life of this patent
Estimating the term…
Abstract
A cartridge-type injection device (20) is removably seated in a passage (18) through the wall of a ladle (10) and comprises a refractory nozzle tip (21) fitted to one end of a tubular body (30), and a delivery pipe (35) for gas or a mixture of gas and a particulate material, the pipe (35) entering an outer end of the body (30) and extending therethrough into the nozzle tip (21). An insulating packing is contained by the body around the pipe (35). The pipe is movable in the bore (22) of the tip (21) for dislodging a melt-obstructing plug in the bore (22) into the melt, whereupon the device is enabled to eject the gas or mixture from the pipe into the melt.
Claims22
An expendable injection cartridge device suitable for installing in a passage through a wall of a melt-containment vessel, for use to deliver injectant into a melt, the device comprising:
- an upstream part including a main tubular body or sleeve;
- a downstream part including a refractory element fixedly secured inside the main tubular body and projecting from a downstream end thereof, said refractory element being pierced by a through passage to thereby define an extended nozzle,
- a melt-impervious, passaage-blocking closure dismountably affixed at a discharge end of the nozzle;
- and
- an injectant delivery pipe which extends through said body and into said passage, said delivery pipe being movable lengthwise of said device forcibly into contact with said closure for dismounting same from the nozzle element to enable injectant fed into said delivery pipe to exit therefrom and discharge into the melt.
An injection device of cartridge form suitable for installing in a passage through a wall of a melt-containment vessel, for use to deliver injectant into a melt, the device comprising;
- a main tubular body;
- a refractory tip forming a nozzle secured to and inset in a downstream end of said main tubular body and projecting downstream away from the said downstream end;
- a melt-impervious, nozzle-blocking closure dismountably affixed at a delivery end of said nozzle to prevent ingress of melt;
- an injectant delivery pipe entering and extending through the main tubular body and into the bore of the nozzle, said delivery pipe being movable lengthwise in the main tubular body and nozzle bore for forcibly engaging the nozzle-blocking closure for dismounting same to enable injectant fed into said delivery pipe to discharge into the melt;
- and
- an insulating packing of refractory material inside the main tubular body surrounding said delivery pipe.
An injection cartridge device suitable for installing in a passage through a wall of a melt-containment vessel, for use to deliver injectant into a melt, the device comprising;
- a main tubular body fitted at one end with a refractory tip forming a nozzle having a bore therein, the nozzle projecting from said one end of said main tubular body and having a dislodgeable nozzle-closing means at a delivery end thereof to prevent ingress of melt;
- a delivery pipe for said injectant, said delivery pipe entering and extending through said main tubular body and into the bore of the nozzle, the delivery pipe being movable lengthwise in said main tubular body and nozzle bore for dislodging said nozzle-closing means;
- a packing of refractory material around said delivery pipe inside said main tubular body;
- said nozzle having a nozzle tip with a flanged end;
- and
- said main tubular body comprising a metal tube having an inturned lip at said one end thereof to provide a seating for said flanged end of said nozzle tip.
Dependencies are inferred from the claim text.