摘要:
A method for providing a blast stream into a blast furnace wherein fuel and hot oxygen are provided into the blast air, the hot oxygen being at a temperature and velocity each greater than that of the blast air, and wherein the fuel and hot oxygen begin to combust prior to passage into the blast furnace in the blast stream.
摘要:
A method for producing powder by atomizing a stream of molten material by contact with a swirling annular gas stream having an angular to axial velocity ratio sufficient to cause some of the gas to flow in the axially opposite direction from that of the gas stream.
摘要:
A method and apparatus for purging air from the interior of a container in which purge gas is supplied to the interior of the container from one or more injectors in a turbulent jet flow having a modified Reynolds number Re' of less than 14,000 and the purge gas is supplied at a flow rate to produce a positive pressure within the container of at least 2 x 10 -8 atm above the ambient pressure.
摘要:
A method and system for providing a controlled gaseous environment at the opening to a receiver and around a free liquid stream downwardly entering the receiver opening. The method comprises laminarly emitting at least two gas flows to extend and intersect over the receiver opening thereby forming an upward plume enveloping the free liquid stream.
摘要:
A method for reducing the NOx content of combustion gases from combustion in a commercial furnace wherein hot oxygen and carbonaceous fuel such as pulverized coal react to form a fuel-rich gas phase mixture which is then used to reduce NOx to nitrogen gas.
(a) a relatively wide and shallow hearth having a bottom comprising at least one layer of refractory; (b) at least one electrode within the furnace interior; (c) at least one gas injection means passing through the hearth bottom through the hearth refractory layer(s) and communicating with the hearth interior; and (d) high quality refractory surrounding at least some portion of the upper length of the gas injection means which passes through the hearth refractory layer(s).