Paper making and fiber liberation – Apparatus – Automatic control
Patent
1979-04-20
1983-04-26
Alvo, Steve
Paper making and fiber liberation
Apparatus
Automatic control
162263, 73 35, D21C 716, D21C 1108, G01L 2308
Patent
active
043812180
ABSTRACT:
The flammability of non-condensible blow gases from a wood pulping digester is continuously monitored by venting a low volume sample flow stream of such gases through a small combustion chamber where the stream is subjected to an intermittent ignition source. Unusually high pressures in the combustion chamber resulting from ignition of a flammable mixture are detected by pressure measuring means providing the operative result of automatically venting a dangerous flow increment of the gas.
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Alvo Steve
Marcontell W. A.
Schmalz R. L.
Westvaco Corporation
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