Centrifuge Operation Safety Procedures

Centrifuge Operation Guidelines

• Verify the "Cleaned" status of the centrifuge and ensure it is clean before operation.
• If the centrifuge has been idle for 48 hours or more, flush it and its bag with water, then spin dry for about 10 minutes.
• Check that the area surrounding the centrifuge is clean and dry before use.
• Wear protective gear, including a nose mask, gloves, and face cover, prior to starting any operations.
• Inspect the centrifuge bag for any cuts or holes, and assess the condition of the centrifuge brakes and rotation.
• Close the centrifuge lid before slowly introducing the slurry into the unit.
• Follow process requirements for spinning and drying the material after feeding.
• Completely switch off the centrifuge and unload the material once operation is finished.
• Hold the centrifuge ML until the required weight of the wet cake is reached, discard if unnecessary into the Effluent Treatment Plant (ETP).
• Seal the centrifuge lid, label containers with appropriate status tags, and prepare them for further processing.

Cleaning Procedures

• Check that the centrifuge is turned "OFF" before initiating cleaning.
• Display "UNDER CLEANING" on the status board to indicate the centrifuge is not in use.
• For normal cleaning, flush the empty centrifuge bag with water and ensure all adhered materials are removed. Transfer the washings to the ETP.
• For hard-to-clean areas, detach the upper cover by loosening the nut bolts, flush the inner portions, visually inspect for residue, and reattach the upper cover.
• Perform a final rinse by flushing the centrifuge and soaking the centrifuge bag in water for approximately 20 minutes, then air dry and label before storage.
• Update the status board to "CLEANED" after completing the cleaning process.
• Document all cleaning operations properly.

Partial Cleaning Steps

• Confirm the centrifuge is "OFF" and empty prior to partial cleaning.
• Show "UNDER CLEANING" on the status board to signal ongoing maintenance.
• Dust the area surrounding the centrifuge to maintain a clean working environment.
• Detach the empty centrifuge bag, soak it to dissolve remaining materials, and ensure thorough rinsing.
• Visually inspect the centrifuge bag to confirm no material remains adhered.
• Flush the centrifuge itself with water and collect the washing for disposal in the effluent plant.
• Visually verify that no materials are left on the walls of the centrifuge.
• Change the status to "CLEANED" on the board after completion.
• Log all operations conducted during partial cleaning.

This quiz focuses on the essential safety and cleanliness protocols required before and during the operation of a centrifuge. Participants will learn about proper maintenance, checking for damages, and wearing appropriate protective gear to ensure a safe working environment.