| 摘要 |
The invention relates to the devices for fine grinding of solid materials and can be used in construction, metallurgical and other branches of industry. A device for crushing of material contains a cylinder-shaped housing with inlets for working medium which are made in its side wall and are located at angle to its radius, and outlet for working medium and ground material, which is connected to the area of generation of vortices, a cover, in which a charging hole is made, and a bottom. The device also contains a bunker-classifier with dust-collecting pipe, in conical bottom of which are located the ejector unit for return of material for additional crushing with measuring hopper, inlet for working medium and conduit for return of non-crushed material, air duct, ejector unit of loading with measuring hopper, inlet for working medium and feed bin, internal protection ring in the middle of cylinder-shaped housing, nozzles for supply of working medium to the ejector units and cylinder-shaped housing, which have detachable variable tips with openings of different diameter or slits and external screw thread. The design of device allows to increase its efficiency, performance and economy.
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