Resources Contact Us Home
Reactor for iron making

Image Number 11 for United States Patent #4790516.

A reactor for iron making having an upper gas blowing nozzle, a lower gas blowing nozzle, and an iron scrap charging inlet. A vertical shaft is installed directly above the inlet at the top part of the reactor. A mechanism is provided in the lower end of the vertical shaft for controlling charging of the iron scrap to the reactor. A by-pass tube is connected between the top part of the reactor and a gas inlet in the vertical shaft directly above the mechanism for controlling the charging of iron scrap and permits exit of high temperature exhaust gases from the reactor and introduces the exhaust gases to flow through the iron scrap in the vertical shaft to pre-heat the same. Structure is provided in the by-pass tube for introducing oxygen gas or air into the high temperature exhaust gases to react therewith and generate further heat. The structure can comprise a nozzle. The mechanism for controlling charging of iron scrap can include a damper positioned immediately above the inlet in the top part of the reactor which is movable to open and close the vertical shaft together with a stopper positioned above the damper and movable to open and close the vertical shaft. Certain amounts of iron scrap can thereby be charged to the reactor by sequential openings and closings of the damper and the stopper.

  Recently Added Patents
System of providing an internet web site that assists medical professionals draft a letter of medical necessity or other documentation for transmission to a third party payer on behalf of a pa
Treatment of celiac disease with IgA
Selecting one of a plurality of print modes based on pixel coverage of a document
Voltage detecting device for LED driver
Antenna tuning on an impedance trajectory
Methods, systems, and products for providing communications services
Systems and methods for identifying malicious domains using internet-wide DNS lookup patterns
  Randomly Featured Patents
Process for the generation of a synthesis gas
Display element, image display device, and image display system
Magnetic pickup sensor
Fastener system with an entrainable function-facilitating material
Auxiliary golf club holder
Inkjet ink, ink set and method of using same
Electrolytic apparatus for reclaiming dissolved metal from liquid
Nitride-based semiconductor light-emitting device and method of forming the same
Ring-substituted 4-azaphthalides
Clarification of ammonium polyphosphate solutions