| 摘要 |
The rotor of a sludge centrifuge has an indicating channel extending inwardly from the sludge space to the rotor axis and provided with a throttled passage opening into the separating chamber. When the outer end of this channel is not clogged by accumulated sludge, liquid discharging through the throttled passage from the channel is replaced by liquid entering its outer end, so as to maintain a certain liquid level or pressure at the inner part of the channel; but when the above-mentioned replacement of liquid is arrested by the occurrence of such clogging, the resulting change in this liquid level or pressure is sensed by a suitable device communicating with the channel.
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