All it is possible only thanks to a new class of the equipment for separation of dry powders with particle sizes up to nanometres a range, developed and supplied only our firm - EMC. The yielded class of the equipment is well scaled. We have not found equipment for classification of powders by a dry process, having the technological parametres comparable to what we have reached on EMC, therefore we consider our classifier as the best in the world.
Electromassclassifier (EMC) - a class of ecologically pure engineering for mechanical processing of powder materials. The action principle is based on found out in 1985 V.V.Zyryanov the formation phenomenon in the closed volume of the dense charged aerosols under the influence of a turbulent gas stream and their division at influence of a combination of various forces in a direction. The first patents of the USSR on EMC № 1403439 (closed) is given out in 1988 charging of firm particles in EMC occurs as a result of a dynamic and static electrization. Depending on execution in technician EMC following operations can be realised: 1) classification of homogeneous powders and nanopowder on particle size; 2) separation of non-uniform powders and nanopowder on the size and a material it is simultaneous; 3) crushing, including such plastic materials, as lead, zinc, magnesium, ammonium iodide, etc., to nanodisperse conditions ~ 30 nanometers; 4) disaggregation of powders; 5) mechanical activation of a surface of particles; 6) surface modification (from the point of view of electric properties, the form); 7) homogenization of mixes nanomaterials and powders. 8) grinding sulfur, coal, and other similar materials milking micron powders Owing to a principle of work EMC there is no tool restriction on particle sizes and quantity of evolved fractions. Thanks to the closed volume and a gymnastics of particles which promotes destruction of aggregates from within under the influence of Kulonovsky force, technics EMC works in a range of particle sizes from ~30 nanometers to 300 microns (removal in the form of charged an aerosol means), inaccessible to traditional technics. Technics EMC is capable to work in controllable atmosphere, at depressed and positive pressure, at temperature 80 K. Technics EMC is easily scaled. Laboratory devices are capable to work in a discrete mode with portions in some g of substance, at the same time in a continuous mode productivity can reach 10 tons at an o'clock. It does possible use of technics EMC not only in nanoindustry, but even at thin processing of mineral raw materials and a waste of power, metallurgy, mountain-concentrating combines.
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Our company has developed unique technology and equipment for the production of ceramic powders. With extensive experience in obtaining nanopowders of oxides and mixed oxides methods Mechanochemistry, we are ready to offer development and delivery of equipment to produce nanopowders with different capacities. The essential difference from most of the proposed solutions on the market for nanopowders is a low cost. Planetary mill original design and used a number of know-how allows to obtain nanopowders of very high quality with very low levels of contamination of raw materials (less than 0.01%). On the line can be obtained nanopowders most solid materials, including tungsten carbide and cubic boron nitride. So, our equipment was obtained nanopowder tungsten carbide with grain sizes of about 10nm, the silicon carbide had a crystallite size of about 50 nm. The data were obtained by the method of Rietveld. Specification The line averages about 5kg/h. and depends on the requirements for the powder on their composition, the desired fineness. Considering the high abrasiveness of ceramic powders has been developed and implemented a special technology to minimize the muddied powder. The line consists of the mill and classifier EMC. At some materials reached fineness of 9-30 nm. Power consumption is about 10-15kW hour. Present equipment area is not more than 4 m2.
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The specialists of our company developed a unique system for obtaining nanopowders on an industrial scale. The complex consists of a planetary mill of the original design and elektromassсlassifier (EMC). The line can produce methods Mechanochemistry ceramic nanopowders of very high quality including of abrasive materials. The line is about 5 kg / hour. Ceramic nanopowders have a particle size of 10 nm nanopowder is an aggregate of up to 1 micron.
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For the separation of thin materials developed a unique, having no analogues in the world of eco-technology with a common name Elektromassklassifikator (EHR). The principle of the multi-purpose technology for dry processing of thin materials based on the mechanochemical phenomenon of "Gas-dust plasma" - dense aerosol and charged particles. Generation and separation of the internal electric fields of aerosol leads to the possibility of obtaining an unlimited number of factions in a confined space, ie without the use of filters, cyclones, compressors, etc. The simplicity of design EMC and low operating costs (2-3 times lower than that of technology, which solves a similar problem) for the first time make possible the processing of a lot of tonnage of dry waste and minerals. Dust control material allows separation of heterogeneous material on other parameters: the magnetic, electrical, density, shape and even color of the particles. Several of the developed separator also do not have yet in the world.
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