초록 ▼

An apparatus and process for rapidly injecting or blowing solid combustible material into a metal pool is presented. In a preferred embodiment, the apparatus essentially comprises at least one nonoxidizing compressed gas source, a circuit which supplies granulated carbonaceous material suspended in

An apparatus and process for rapidly injecting or blowing solid combustible material into a metal pool is presented. In a preferred embodiment, the apparatus essentially comprises at least one nonoxidizing compressed gas source, a circuit which supplies granulated carbonaceous material suspended in a carrier gas, at least one circuit which supplies flushing gas, various means for metering different flow rates of the gas and solid particulate streams and means for separately or jointly connecting the above described circuits to appropriate conduits which terminate in a blowing lance.

대표청구항 ▼

An apparatus for regulating the delivery of solid combustible material through a blowing lance above a pool of metal comprising: a source of a carrier gas; supply circuit means for delivering solid combustible material suspended in said carrier gas to a blowing lance; flushing circuit means for deli

An apparatus for regulating the delivery of solid combustible material through a blowing lance above a pool of metal comprising: a source of a carrier gas; supply circuit means for delivering solid combustible material suspended in said carrier gas to a blowing lance; flushing circuit means for delivering flushing gas to said blowing lance; means for controlling the flow rate of said solid combustible material to vary said flow rate over a range of operation; means for controlling the flow rates of said carrier gas and said flushing gas to vary said flow rates of said carrier gas and said flushing gas over a range of operation; and means for connecting said supply circuit means and said flushing circuit means separately or concurrently to said blowing lance; said means for controlling the flow rate of said solid combustible material including: a fluidizing system, said fluidizing system having a rotating cellular regulator and a reservoir; means for sensing conduit pressure downstream from said fluidizing system; means for comparing said downstream pressure with a desired pressure and adjusting the speed of said rotating cellular regulator; and a plurality of conduit means connected to said fluidizing system carrying pressurized gas thereto.