SWIRLING-TYPE DUST COLLECTOR Russian patent published in 1999 - IPC

FIELD: dust removal from gas. SUBSTANCE: collector has cylindrical case mounting in its top part tangential inlet for secondary clean-gas flow made in the form of several pipe connections separately arranged on case surface through its height and axial clean-gas outlet. Bottom part of case has taper dust collector and axial inlet for primary clean-gas flow carrying swash plate. Tangential secondary-gas inlet pipe connections are positioned to follow direction of gas swirling and spaced 120 deg. apart over circumference. Axial primary-gas inlet has access hole on end of its pipe whose diameter equals 0.7-0.8 of that of pipe as well as rectangular-section gas supply pipe connection with ratio of sides being 1:1.5-2.0 mounted tangentially to axial inlet. Conical swash plate has its larger diameter equal to 0.8-0.9 of case diameter. Tangential secondary-gas pipe connection first on top is rectangular-section pipe with ratio of sides being 1:1.5- 2.0. Each of remaining pipe connections of tangential inlet is round-section pipe whose diameter equals half the difference between diameter of case and that of axial clean-gas outlet or is lower still. EFFECT: improved reliability and efficiency of dust collection. 2 cl, 2 dwg