| 摘要 |
<p>Gases are blown into the kiln through its shell by means of shell pipes or nozzle blocks. The rates at which gases actually enter the kiln are ascertained in that the pressure in each supply duct is pneumatically tapped at a constriction and is applied to a transducer, which is secured to the kiln. A differential pressure is ascertained by the transducer and converted to an electric signal, which is delivered to a control station via slip rings, which are secured to the kiln, and stationary taps.</p> |
