used centrifugal laboratory separation centrifuge
details to article: 30405
| Producer: | Zhengzhou Toper Industrial Equipment Co., Ltd |
| Typ: | PSb300 |
| Year of manufacture: | 2021 |
| Pieces: | 1 |
| Condition: | gebraucht / used / second hand |
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informations about: centrifuges A centrifuge is a piece of equipment, generally driven by an electric motor (some older models were spun by hand), that puts an object in rotation around a fixed axis, applying a force perpendicular to the axis. The centrifuge works using the sedimentation principle, where the centripetal acceleration causes more dense substances to separate out along the radial direction (the bottom of the tube). By the same token, lighter objects will tend to move to the top (of the tube; in the rotating picture, move to the centre). In the picture shown, the rotating unit, called the rotor, has fixed holes drilled at an angle (to the vertical). Test tubes are placed in these slots and the motor is spun. As the centripetal force is in the horizontal plane and the tubes are fixed at an angle, the particles have to travel only a little distance before they hit the wall and drop down to the bottom. These angle rotors are very popular in the lab for routine use. There are at least six types of centrifuge: preparative centrifuge analytical centrifuge angle fixed centrifuge swing head centrifuge haematocrit centrifuge continuous tubular centrifuge Industrial centrifuges may otherwise be classified according to the type of separation of the high density fraction from the low density one: Screen centrifuges, where the centrifugal acceleration allows the liquid to pass through a screen of some sort, through which the solids cannot go (due to granulometry larger than the screen gap or due to agglomeration). Common types are: Screen/scroll centrifuges Pusher centrifuges Peeler centrifuges Decanter centrifuges, in which there is no physical separation between the solid and liquid phase, rather an accelerated settling due to centrifugal acceleration. Continuous liquid; common types are: Solid bowl centrifuges Conical plate centrifuges From Wikipedia, the free encyclopedia | ||||||||||||||||||||||||||||
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