Thread Content
It is prohibited to close the overflow valve on the clear liquid side while the oxalate centrifuge is in operation; this design requirement stems from the interlock design principles for mechanical equipment. The purpose of this design is to prevent equipment overload caused by poor discharge, which could ultimately lead to equipment damage. During the alkali washing process, if the relief valve is closed, the equipment will shut down automatically as a result of interlock protection. This leads to insufficient centrifugal force during alkali washing, causing the alkali solution that enters through the feed nozzle to partially dissolve the material attached to the discs, which in turn results in rotor imbalance and makes it difficult to restart the equipment later. To meet the requirements of the equipment interlock design, as long as the operating conditions for equipment interlocking are satisfied, the oxalate centrifuge will not stop during the alkaline cleaning process. Subsequently, the equipment interlock system was optimized to ensure that online alkaline cleaning can be carried out. For minor blockages in the rotor, a semi-speed flushing approach can be used to avoid spending a lot of time disassembling the rotor. In addition, special care for the rotor should be enhanced, with regulations established for the frequency and timing of routine maintenance tasks ； At the same time, based on the relationship between current changes in the rotor and rotor vibration, the duration of the rotor alkali cleaning process is determined in order to maximize the operating cycle of the centrifuge.