FIELD: technological processes.
SUBSTANCE: invention relates to devices for crushing of material of mineral and vegetable origin and may be used in construction, mining, chemical, power and other industries. Method for crushing of material includes supply of crushed material, speeding up of crushed material with formation of mixture jets from crushed material and air and further supply of mixture into annular crushing chamber, simultaneous supply of air flow into circular crushing chamber in direction towards mixture jets and removal of finished product. Along perimetre of annular crushing chamber, local periodical variances of pressure value and speed of air flow and/or values of pressure and speed of mixture jets are created.
EFFECT: invention makes it possible to improve efficiency of crushing process and to reduce percentage of undercrushed particles of material.
2 cl, 2 dwg
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