Before starting the decanter centrifuge, check in advance: whether the overload protection device is in normal working condition; whether the fastening bolts everywhere are loose; whether the drum can rotate normally; whether the moving parts and static parts are rubbed.
When the density of the solid and liquid phases of the suspension is relatively high, the solids are easy to settle. In order to prevent the uneven distribution of sediment in the drum at the beginning of the start-up, which may cause the centrifuge to vibrate, the auxiliary liquid (water or other liquid) can be added to the Xuan drum before the suspension is added. The temperature of the auxiliary liquid should be the same as the temperature of the suspension; After the drum is filled with auxiliary liquid, the suspension is gradually added to gradually increase the load of the centrifuge to the normal load.
Stop feeding before stopping the decanter centrifuge, and then add flushing fluid to rinse the inside of the centrifuge, and all the sediment in the drum needs to be rinsed. If there is sediment in the drum, it will cause strong vibration when the centrifuge is restarted, or jam the conveying screw and overload the differential. If the centrifuge bearings are forcibly lubricated by the lubricating oil pump, the centrifuge should be stopped when the machine is stopped, and the oil pump should be turned off after the centrifuge drum stops rotating.
When the feed rate is too large or the concentration of the suspension is too high, the decanter centrifuge may be blocked and forced to stop. The method to eliminate the clogging of the decanter centrifuge is to introduce the flushing liquid from the feed pipe, and at the same time slowly rotate the drum by hand along the direction of rotation of the drum, so that the sediment blocked in the drum is gradually discharged from the slag discharge port of the drum. If the blockage is serious and the above method cannot be used, the centrifuge needs to be disassembled, the conveying screw is taken out of the drum, and then the blockage is removed.