Is there any new technology that can replace centrifuges?

As a standard equipment widely used in the national economy, centrifuges are safe, but it is common for manufacturers to cut corners and cause safety hazards and illegal operations. Centrifuges have* * According to the mandatory safety standard JB 8525-1÷÷2005 "Safety Requirements for Centrifuges", the use of centrifuges is becoming more and more widespread, and the key is to use them rationally. There is no technology that can completely replace the centrifuge. The centrifuge is still an efficient separation device!

I don’t know where the original poster heard that centrifuges are dangerous. Have you ever seen a centrifuge? You can consult the domestic Chengdu Tianbao Company's pusher centrifuge or the Dutch Tianma Company's products. They are both good solid-liquid separation equipment. Can you learn more about them and come back for help?

The centrifuge used by the poster should be used to separate sludge and sewage in the sewage treatment process. There is another piece of equipment that is also very good, which is the belt filter press. The one we use is made in Korea. The speed is only a few tens of revolutions per minute. The failure rate is very low, the investment is very small, and the dehydration efficiency is equivalent to a centrifuge.

As a high-speed rotating equipment, it is incorrect to understand that there are no dangers in centrifuges. Indeed, there are. I have been working on centrifuges for more than 20 years, and I know of some personal accidents such as centrifuge drum explosions every year. However, when looking into the reasons, a small number of them are caused by individual manufacturers cutting corners, and most of them are caused by illegal operations, overload use, corrosion, etc. If there is no danger, there will be no national standards such as "Safety Requirements for Centrifuges" and EU standards such as "Health & Safety Policy". The key is to correctly select the centrifuge, manufacturer, and use the equipment correctly. It should be said that all equipment, including dynamic equipment and static equipment, has faults and risks. I believe that the majority of chemical workers feel the same way. In order to survive, everyone must pay attention to safety! ! 1

There was also an accident in my classmate's factory where there was an explosion due to the use of a centrifuge to throw away materials, and there was someone there. . . . . . . . . If used by pharmaceutical companies, they can choose a three-in-one kettle to press out the liquid with nitrogen and have a drying function, which is very helpful for improving the operating environment. The above opinions are for reference only.

Do you have any more details? Please provide them.~

Do you have any more details? Please provide them.~

When I say unsafe, I include the possibility of serious accidents due to illegal operations, because our company had a major accident because a worker started the machine without turning on nitrogen protection. So here I ask if there are any reasonably designed alternatives. Strictly speaking, very few equipment are safe, because there is the possibility of illegal operations, so this possibility must be avoided in the design.

I think centrifugation is quite safe. Chemical companies themselves are dangerous industries. You must be careful in everything you do. If you want to be safe, it would be better to stay at home.

We should avoid being too general in design. Every industry and every project is different. It is too general to discuss it here. If you are just planning a project, you can discuss it in depth.

We should avoid being too general in design. Every industry and every project is different. It is too general to discuss it here. If you are just planning a project, you can discuss it in depth.

There are many equipment that can replace the centrifuge, such as filter press or vacuum filter, but the effect is not as good as the centrifuge, and the performance varies greatly depending on the materials!

There are only relatively safe equipment in the world, but there is no absolutely safe equipment! The same equipment will have different results when operated by different people, so the key is to see how we maintain and use the equipment. The following is a summary of the first shutdown operation of the centrifuge. I hope it will be helpful to the author. 1. First, lay the centrifuge bag. If its edge cannot exceed the edge of the drum by too much, friction with the stationary outer wall will generate heat during the centrifugation process. If the solvent is flammable and explosive and there is no oxygen, the heat generated may cause an explosion. Therefore, it is best to use nitrogen protection during filtration. 2. To protect with nitrogen, you need to connect the very thin tube on the cover of the centrifuge (usually DN15, the oldest centrifuge may not even have a cover or have such a tube on the cover, so you need to open a new hole to connect the nitrogen). During the centrifugation process, turn on the nitrogen, which will isolate the air. Even if there is friction and heat and there are flammable and explosive solvents, it will not explode. 3. When the centrifuge rotates at high speed, low-boiling point solvents are very easy to atomize and form a large number of tiny droplets. Such "fog" around the centrifuge is very dangerous! 4. The brake drum, starter disc, and the tightness of the belt are all critical when braking. 5. When starting the centrifuge, it is necessary to perform electric operation first to see whether the turning operation is smooth. If the bumps are severe, it is usually caused by uneven material transfer. 6. Mother liquor pool. The pipeline from the centrifuge to the mother liquor pool should be well grounded. You can also refer to the practices of petrochemical companies and extend the mother liquor pipeline to the bottom of the pool. 7. Be careful if the clutch operates for a long time. If the clutch is run for too long, the clutch will overheat. Consider using tap water to cool it down.

We use a rotary washing filter from the German company BHS. Haha, I secretly called it a drum washing machine: lol

Centrifuge is the most commonly used one. According to your different needs, I will introduce to you rake dryers, plate and frame filter presses, leaf filters, etc.