Specialized metallurgical processes – compositions for use therei – Processes – Process control responsive to sensed condition
Patent
1994-09-21
1995-09-05
Andrews, Melvyn
Specialized metallurgical processes, compositions for use therei
Processes
Process control responsive to sensed condition
75387, 266 83, C21B 1300
Patent
active
054475503
ABSTRACT:
Methods and systems are provided for controlling the pneumatic transport of friable particulate solid material through a transport pipe by means of a carrier gas circulating in a loop comprising the transport pipe and a carrier gas recycle conduit. A value of kinetic energy of the carrier gas is determined at a location proximal to a point of introduction of the material into the transport pipe. This value is compared with a kinetic energy set point to produce a first control signal which controls venting of carrier gas from the loop. A value of flow rate of the carrier gas in the loop is determined and compared with a comparison signal based on the first control signal to produce a second control signal. The second control signal is used to control the flow rate of the carrier gas through the carrier gas loop.
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Davila-Chavez Agustin
Leal-Cantu Nestor
Trevin-Garza Rogelio
Zazueta-Aispuro Alberto
Andrews Melvyn
Hylsa S.A. de C.V.
S. Safford A. Thomas
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