Basis of a set of technologies

A new technology is being used inside the resonance vortex mills, a non-contact material grinding, where the grinding processes are performed by means of an air vortex, artificially produced in an enclosed space within the processing chamber.

As an energy carrier (fuel) the following may be used:

  • Pressurised air (compressor or a turbine);
  • Inert gas supplied under pressure such as argon;
  • High-pressure steam (superheated steam);
  • Supercritical media (fluids), (CO2) for instance;
  • Coolants.


A complex of applied technologies and profile installations (lines) for the disintegration of various materials in closed gas-dynamic flows with controlled resonances.


The resonant vortex TORNADO installation is a gas-dynamic mill in which the technology of cascaded adiabatic resonance impact grinding is implemented, impact velocities of which are close to a breakdown threshold. The installation is designed in a way so that any particle of the input material gets literally torn by the repeated crossing of the differential pressure zones in the intervortex vacuum chamber, which produces ultrahigh gradient (pressure drops) at the interface (up to hundreds of thousands atmospheres). When the material is injected into such area of pressure differential, a rupture of the material’s structure and clusters occurs. Such mechanism can be compared to the mechanism of material’s sample destruction, which is done in order to determine its strength characteristics at tensile test plants. That is, the grinding occurs not due to the friction or any other mechanic force, but by “air” and resonances, which provide a high and efficient performance, great flow rate of raw material as well as inexpensive exploitation (no rubbing parts) with low power consumption.

Typical installations of resonant-vortex mills “Tornado”

  • superhard materials;
  • mineral raw materials;
  • metal oxides and mixtures thereof;
  • carbon and mixtures of metal carbides;
  • quartzite and detection of crystals in rocks;
  • technogenic mineral wastes and ash from thermal power plants;
  • pulverized coal;
  • polymers and composites on their basis;
  • building mixes and concrete;
  • garbage and broken glass;
  • used tires and rubber;
  • mixtures for 3D;
  • recycled metal;
  • magnetic materials:
  • nano-structured mixtures;
  • omineral pigments and etc;
  • medicinal and herbal raw materials;
  • liquid and dry biomass, including waste of agricultural production;
  • wood and hydrolytic lignins;
  • bran and grain waste from the destruction of the cellulose skeleton;
  • grain with the destruction of macromolecules, cellulose skeleton and starch;
  • organic polymers;
  • mineral and organic sorbents;
  • organic cellulose;
  • waste of wine, alcohol and starch  industry;
  • fruits, berries and vegetables with the activation of BAS and drying, etc.