Basalt hydrocyclones

A hydrocyclone is a device primarily designed for tasks such as the classification of ore pulp, thickening of slurries and flotation products, beneficiation of fine coal and ore fractions in water and dense suspensions, as well as for cleaning circulating water in the centrifugal field created by the rotation of the pulp.

The principle of operation of a hydrocyclone is based on the process of separating solid particles in a vortex flow of liquid. The tangential feed of the pulp into the hydrocyclone body creates a centrifugal field that effectively deposits particles on its walls. This leads to the separation of the suspension into components of different densities, which are then discharged from the device through different outlets – overflow for lighter fractions and underflow for heavier fractions.

The use of cast stone hydrocyclones offers significant advantages. Suspensions passing through the hydrocyclone move at high speeds, causing severe abrasive wear on the inner surface of the device due to contact with fine abrasive particles. The company "Termolit-Invest" offers a solution to this problem by producing specialized hydrocyclones lined with cast stone. Basalt lining significantly extends the service life of hydrocyclones compared to those made of cast iron and steel, as well as those lined with rubber, polyurethane, or rubber-ceramic, increasing it by more than 10 times.

The production of hydrocyclones lined with cast stone is a labor-intensive process, making their cost higher compared to cast iron devices and those using other lining materials. However, the significantly longer operational period and reduced need for frequent shutdowns for maintenance and equipment replacement make fused basalt hydrocyclones an economically preferable option.