Hydrocyclone Models

The modelling of hydrocyclones is performed by either describing the fluid flow and particle motion within the cyclone, or by developing empirical

Figure 4 Cut size and throughput for different cyclone diameters.

Table 1 Cyclone design and operating variable effects2

Increasing Throughput Cut size Sharpness of

(Q) (d50) classification

Table 1 Cyclone design and operating variable effects2

Increasing Throughput Cut size Sharpness of

(Q) (d50) classification

Cyclone diameter, Dc Í Í

Î

Vortex finder diameter,! Í

Î

Do

Spigot diameter, Du Í J,

i

Feed inlet, D Í J

i

Cone angle Not comparable!

Î

Free vortex height, h Í Í

Î

Pressure drop, P Í J

Î or i

Volumetric feed solids Í Í

i

concentration, $ aî increase; J, decrease.

concentration, $ aî increase; J, decrease.

(or semi-empirical) relationships between operating variables and measured responses. Fundamental models are appealing from a rigorous standpoint but have difficulty in describing satisfactorily the complex particle-particle and particle-fluid interactions for hydrocyclones operating at higher solids concentrations.

Empirical or semi-empirical models, which relate the parameters of the partition curve to cyclone design and operating variables, are generally used for industrial hydrocyclone modelling and simulation. A number of general models, particularly for larger diameter hydrocyclones, have been developed (see Further Reading).

Solar Panel Basics

Solar Panel Basics

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