Why it is important to regularly check the ventilation ducts on scraper centrifuges
　　Three important conditions for accidents when using scraper centrifuges are combustibles, oxidizers and sources of ignition. The temperature of the material plays an important role in combustion and explosion.
　　How do we prevent accidents? When using scraper centrifuges, please pay attention to the following things to prevent accidents to some extent
　　1. Use inert gas or other gases to protect and control the oxygen concentration. Flow monitoring method and pressure monitoring method can be used.
　　2. Oxygen concentration monitoring methods can generally be used to strictly control oxygen concentration. When using the above-mentioned methods, it is necessary to ensure sufficient nitrogen source first.
　　3. When using the scraper centrifuge, strictly implement the operating procedures, control the feeding volume and feed evenly. If you find that the feed is not uniform, please deal with it in time to make it uniform. Regularly check the ventilation pipe on the scraper centrifuge to make it smooth.
　　4. Tighten the fastening bolts during installation
　　5. When using liquid-liquid separator for liquid pressurization, please strictly follow the operation procedures to prevent combustible gas from entering the machine.
　　6. Strengthen the maintenance management of equipment, especially the corrosion and maintenance of corrosive equipment.
　　In order to prevent accidents during the use of scraper centrifuges, we must always keep these matters in mind to protect our own safety and public property.
　　When operating the scraper centrifuge pay attention to the following points:
　　1. If the electric scraper centrifuge has noise or vibration, the power should be cut off immediately and troubleshoot immediately.
　　2. After the separation is complete, first shut down the scraper centrifuge. After the scraper centrifuge stops rotating, open the scraper centrifuge cover and remove the sample. You cannot use external force to force it to stop the movement.
　　3. The centrifugation time is usually 1-2 minutes. During this time, the experimenter must not leave to do other things.
　　4. When starting the scraper centrifuge, the top lid of the scraper centrifuge should be covered before it can be started slowly.
　　5. Place a cotton cloth or test tube pad on the bottom of the centrifuge tube.
　　The above five points are the notes of the scraper centrifuge. It should be especially noted that the scraper centrifuges commonly used in laboratories are relatively fast. Before the experiment, the equipment must be carefully checked to avoid accidents.