| 摘要 |
<p>Appts. for remotely controlling prepn. of material in cement kilns equipped with internal chain systems by recording plastics zone and the advancement of the material, comprises positioning the plastics zone and the material advancement using acoustic surveillance. Acoustic signals produced are transformed into electrical data and/or visual data. Furnace with chains produces cement flowing along the kiln. Microphones are attached by cables to receiver for treating the signal in the control room and this is connected to a graphic visulisation device in the control room.</p> |
