Centrifuge vibration issue
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Propanol is a solvent that is in a nearly 1:1 ratio with methanol; I suspect the problem lies with propanol, as when the ratio of methanol to propanol is 6:1, the centrifuge experiences very little vibration. The wet material in the solvent compartment can easily be flung off the medium, resulting in uneven feeding. Other materials with higher oil content are much more stable. Our factory building is old, and we use vertical scraper centrifuges with a capacity of 1250. Due to the high height of these centrifuges, the distance between them and the bottom of the tanks is very small; therefore, nitrogen pressure is used to feed materials, with feeding taking place through a single inlet on one side. Basically, out of every 10 cycles of centrifuging, 5 times there is severe shaking, and recently the welds on the lid latch of the centrifuges have even broken off. Workers are under a lot of stress, and the equipment suffers significant wear and tear. Do any experts have any good suggestions? Thank you
The centrifuge is shaking violently; if it runs fine when idle, then it’s almost certainly due to an uneven distribution of the material. I have also used pressure feeding before; it is important to keep the feeding speed as constant as possible, and avoid feeding fast at one time and slow at another. The drying speed also plays a role; both drying too quickly and too slowly can cause the centrifuge to vibrate. Of course, the solvent issue you mentioned is also possible. We later installed an inverter on the centrifuge; at the beginning of feeding, the speed was set low, and once the material had been mostly drained, a higher speed was used for further spinning. In this way, the material remains flat and free of irregularities, so the centrifuge does not vibrate.
Thank you for your reply; that’s exactly what we do – the centrifuge is equipped with variable frequency control, set at 55. Are there any new types of centrifuges known for their stability?
Personally, I think the problem lies in the pressure control mechanism, as it’s difficult to maintain stable pressure inside the tank; as material is discharged, the pressure inside the tank decreases and the amount of material fed in also reduces... The best approach is to feed material slowly in order to keep the pressure inside the tank as stable as possible.
We will definitely take your valuable suggestions into account
A swash plate distributor can be used for distribution
Upstairs, could you introduce this thing?~~·
Motor power of swash plate distributor: 3kW； Asynchronous to the drum rotation speed, it reduces abnormal vibrations caused by poor material flow during feeding ； A cleaning pipe is installed on the side of the feeding pipe; the cleaning liquid is used for washing via a distributor, ensuring more thorough cleaning ； The bearing support in the distributor housing features a long pivot length between the bearings, enabling it to withstand significant impacts and offering a long service life ； The design between the fabric tray and the feeding tube is sealed, preventing splashing during feeding.
Does this swash plate distributor require a new centrifuge? Is it available to buy separately? Can we modify it on a centrifuge?