In-house developments and industrial trials

Polyfrequency Vibration Technologies and Equipment

Separation, dewatering, grinding and beneficiation of mineral raw materials on machines with vibro-impact polyfrequency excitation of vibrations — where conventional vibrating machines fail.

Equipment and technologies

Areas of development

All our machines are built on one principle: vibro-impact polyfrequency excitation of vibrations of the working member. Choose an area to see the technology, trial results and specifications.

MVG Polyfrequency Vibrating Screens

Sizing of bulk materials from 20 µm to several millimetres and their dewatering without blinding of the screen apertures.

Drilling Fluid Cleaning

Removal of drilled cuttings from drilling fluids on MVG screens: 25 µm cut size, fluid losses of 15.7 % instead of 100 %.

MVZ2 Polyfrequency Vibratory Mills

Fine and ultrafine grinding of mineral raw materials from a feed size of 2.5–3.0 mm in a straight-through grinding chamber.

Vibro-Pulse Well Treatment

Vibro-pulse treatment of the near-wellbore zone of productive formations to increase well production rate or injectivity.

Advanced Technologies and Machines

Vibro-impact polyfrequency breakers, exciters and feeders for cleaning bins and skips and dislodging bulk material hang-ups.

VOM Vibratory Jigs

Beneficiation of 0.5–150 mm coal in still water without hutch water or transport water.

Advantages of vibro-impact polyfrequency excitation

Polyfrequency vibrations ranging from a few hertz to kilohertz are generated on the screen deck. This prevents aperture blinding and breaks up agglomerates of stuck-together particles, while the particles move intensively within the bed and pass efficiently through the apertures.

The drive adapts to changes in the process load mass: when the load on the working member increases tenfold, its excitation energy increases eightfold.
Resonant polyfrequency vibrations of the working members with a continuous spectrum ranging from a few hertz to tens of thousands of hertz improve vibration propagation in the process medium, particle mobility and process throughput.
The resonant vibrations of the working member remain fully stable when the process load mass and other system parameters change.
The vibration parameters of the working member together with the process medium can be adjusted over an acceleration range from hundreds to thousands of m/s².
No dynamic loads are transmitted to the supporting structure, so the vibrating units can be installed on floor slabs.

20 µm

minimum cut size on MVG screens

1–4 m²

screening area across the size range

0–22 kHz

frequency range of the vibro-pulse generator

17–23 %

residual moisture of coal concentrate

Fields of application

Mining and mineral processing.
Coal preparation: recovery and dewatering of coal from slime products.
Thermal power generation: processing of fly ash from thermal power plants.
Oil and gas production: drilling fluid cleaning, vibro-pulse well treatment.
Ferrous, non-ferrous and powder metallurgy.
Construction, chemical, food and pharmaceutical industries.
Wastewater treatment and industrial waste processing.

Cooperation

We are ready to discuss the use of polyfrequency vibration equipment for your raw material and process flowsheet, from laboratory studies to industrial trials.

Contact information