| 摘要 |
FIELD: mining equipment, in particular, devices for concentration of ores and sands containing diamonds, non-ferrous and noble metals, mainly for separation of fine-ground materials in centrifugal field in accordance with density. SUBSTANCE: centrifugal concentrator comprises a cone-shaped bowl mounted on an inclined shaft for rotation about the vertical axis, feeding and unloading devices, lock preventing the cone-shaped bowl from rotating about its own axis, the inclined shaft is hinge-mounted in the lower part, and installed in the upper part of the inclined shaft is a bearing receiving a pin rigidly coupled to the drive shaft through a coupler secured on it and having a groove for adjusting the angle of inclination; the lock is secured in the lower part of the inclined shaft; the concentrator is furnished with a discharging device for heavy fraction, the cone-shaped bowl is furnished with a special inner surface selected depending on concentration of useful components in material to be concentrated. EFFECT: intensified process of concentration, improved quality of separation, reduced loss of useful minerals due to effective control of separation parameters, simplified adjustment of assemblies, in particular, assembly for charging and discharging of trapped useful minerals, enhanced quality of obtained gravity concentrates. 3 cl, 2 dwg |
