FIELD: finely dispersed bulk material separating equipment used in mining, chemical, construction industry, heat engineering. SUBSTANCE: separator has cylindrical housing, basic material and primary air supply branch pipes, secondary air supply pipe, small fraction and air supply branch pipe, large fraction branch pipe, and separating head axially aligned with cylindrical housing and equipped with perforated conical cover having bottom. Shell mounted on cylindrical housing top is extending through helical device, which closes cylindrical housing from the top. Basic material supply pipe and tangentially extending primary air supply branch pipe are positioned in shell. Small fraction and air discharge branch pipe is extending tangentially with respect to helical device. Separating head is equipped with perforated annular strip having shell spaced from cylindrical part of housing and connected with secondary air supply pipe, which is equipped with flow rate regulator. Strip is extending axially symmetrically through shell mounted on top to define annular gap for discharge of basic material and primary air into cylindrical part of housing. Perforated cover of separating head is made in the form of stepped cone with shell. EFFECT: increased efficiency and wider operational capabilities. 4 cl, 2 dwg
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Authors
Dates
2002-08-20—Published
2000-10-12—Filed