An important factor in measuring the centrifugal function of a centrifuge is the centrifugation factor. It indicates the ratio of the centrifugal force and gravity of the material to be separated in the drum. The larger the centrifugation factor, the more active the separation and the better the separation effect. 100 ～ 20000 ，超速管式离心机的离心因数可高达 62000 ，剖析用超速离心机的离心因数最高达 610000 。 The centrifugation factor of industrial centrifuges is generally 100 ~ 20000 , the centrifugation factor of ultra-speed tube centrifuges can be as high as 62,000 , and the centrifugation factor of ultracentrifuges used for analysis is as high as 610,000 . Another factor in selecting a centrifuge is the working area of the rotating drum, which requires a large working area.
It is very necessary to choose a centrifuge based on the size and concentration of solid particles in the suspension (or emulsion) and the density difference between the solid and liquid (or two liquids), the viscosity of the liquid, and the characteristics of the slag (or sediment) In the resolution, it is also necessary to rely on the demand for centrifugation to conduct an inductive analysis. It can satisfy the needs for the moisture content of the filter residue (sediment) and the purity of the filtrate (separation liquid), and began to choose which type of centrifuge to use. Then determine the type and standard of the centrifuge according to the throughput and the need for automation of the operation.
0.01 毫米颗粒的悬浮液，也能够选用过滤离心机；关于悬浮液中颗粒的纤细或是可紧缩变形的，则能够恰当选用沉降离心机；关于悬浮液含固体量低的颗粒的纤细和对液体的清度需求高时，应该挑选试验剖析用的离心机。 In general, a filtration centrifuge can also be used for suspensions that are rich in particles with a particle size greater than 0.01 mm; for slim or compressible deformation of the particles in the suspension, a sedimentation centrifuge can be properly selected; and the suspension has a low solid content When the fineness of the particles and the need for liquid clarity are high, a centrifuge for test analysis should be selected.
The effect principle of the centrifuge is two methods of centrifugal sedimentation and centrifugal filtration. - 固（或液 - 液）别离； 试验剖析用的离心机，他能够进行液体弄清以及固体颗粒的富集，或液 - 液别离，像这样的离心机有常压、真空、冷冻条件下操作的不一样计划形式。 Centrifugal filtration is the centrifugal pressure that enables the suspension to occur under the centrifugal force field. Its effect is on the filter medium, so that the liquid becomes a filtrate when it passes through the filter medium, while the solid particles are left on the surface of the filter medium. A principle of active sedimentation and stratification of various components of suspensions with different density in the centrifugal force field was completed, and the liquid - solid (or liquid - liquid) separation was ended. The centrifuge used for the test analysis can clarify the liquid. As well as the enrichment of solid particles, or liquid - liquid separation, centrifuges like this have different planned forms that operate under normal pressure, vacuum, and freezing conditions.