Method and apparatus for pneumatic feeding or additives into converters
OwnerMarkku J. Jortikka, Eino H. Forss +5inventors
InventorsMarkku J. Jortikka, Eino H. Forss, Harry A. Heino, Erkki A. Lajunen, Erkki E. Putkonen, Toivo E. Julkunen, Timo Laurio
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Abstract
A method and apparatus for pneumatic feeding of additives along pipes from an additive silo to converters. The additive is allowed to flow into a dispatching device, a scale or a similar device in it stopping the entrance of the additive when the desired quantity of additive has arrived in the dispatching device. The dispatching device is pressurized thereafter by means of compressed air, by means of which the quantity of additive is fed via a pipe into the converters.
Claims4
A method for pneumatic feeding of additives from an additive silo into converters, comprising
- feeding said additives into a dispatching device having quantity sensing means and means for stopping of a flow of said additives into said dispatching device upon entering a predetermined quantity of said additives into said dispatching device;
- pressurizing the dispatching device by means of compressed air;
- supplying additional compressed air through valve means situated between said dispatching device and said converters;
- entering of a flow of a gas-additives mixture into the converters through gas-removal devices in a such way that said flow faces a flow of oppositively directed blasting gases discharged by said gas-removal devices;
- and
- removing of said compressed air from said gas-additives mixture along with said blasting gases in said gas-removal devices.
Dependencies are inferred from the claim text.