Gas separation – With nonliquid cleaning means for separating media – With automatic control of cleaning means
Patent
1997-02-07
1998-11-03
Bushey, C. Scott
Gas separation
With nonliquid cleaning means for separating media
With automatic control of cleaning means
55302, 55523, B01D 4604
Patent
active
058302492
ABSTRACT:
A control system for a dust collecting apparatus including an upright housing arranged above a dust storage bin, a ceramic filter assembly disposed within the housing to collect dust particles from exhaust gases supplied into a bottoms portion of the housing located upstream thereof, and a reverse washing mechanism mounted on the housing downstream of the filter assembly to cause the collected dust particles to fall into the dust storage bin from the filter assembly when it is activated, wherein temperature (T1) and pressure (P1) of the exhaust gases supplied into the housing upstream of the filter assembly, temperature (T2) and pressure (P2) of purified gases discharged from the filter assembly into an upper portion of the housing located downstream of the filter assembly and a flow quantity (Q1) of the purified gases discharged from the housing downstream of the reverse washing mechanism are detected to calculate an (.eta.=f(T) and a pressure loss coefficient K=f(.DELTA.P, Q, .eta.) of the exhaust gases passing through the filter assembly, and wherein the reverse washing mechanism is activated under control of an electronic controller when the calculated pressure loss coefficient (K) becomes more than a predetermined value (K0) and is deactivated when the calculated pressure loss coefficient becomes less than the predetermined value (K0).
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Akitsu Yasuo
Hori Yoshiaki
Bushey C. Scott
NGK Insulators Ltd.
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