Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Device for the selective injection of an oxidizing gas or a carrier gas with or without carbonaceous material to a liquid metal bath










Image Number 10 for United States Patent #4693274.

This invention relates to a device used in the selection between two fluids that are to be injected into a liquid metal contained in a metallurgical converter: an oxidizing gas and another gas conveying powdered carbonaceous material; both fluids arrive through different conduits to a selecting valve located at the bottom of a metallurgical converter just before a single conduit tuyere for leading one of the fluids to the liquid metal by means of the selective mechanism in such valve. The valve design and operation avoids the possibility of mixing the oxidizing gas with the carbonaceous powder in any part of their path up to the metal bath by providing separate passages for each fluid and one inert gas purge passageway between said passages, and further including a safety mechanism which provides control means for the fluid to be correctly injected by avoiding the transport of the oxidizing gas or the carbonaceous material if the corresponding movable passage within the valve body is not correctly and precisely positioned.








 
 
  Recently Added Patents
Heap/stack guard pages using a wakeup unit
Coffee cup stationery tab
Plants and seeds of corn variety CV577261
Enhancing user experiences using aggregated device usage data
Image descriptor quantization
Spectral measurement device
Method for specifying control curve parameters for controlling climatic environmental conditions of climate-controlled enclosed spaces
  Randomly Featured Patents
Heating apparatus with enhanced thermal uniformity and method for making thereof
Automatic lead advance for mechanical pencils
Surgical nasal septum splint
Organogermanium induction of interferon production
Method for manufacturing ferroelectric thin film device, ink jet recording head and ink jet printer
Gate assembly for a coin selecting and separating device
Inter-oxa-13,14-dihydro-9.beta.-PGD.sub.1 compounds
Method and facility for selecting satellite channels
Digital camera
System for player purchasing using funds associated with player accounts