CYCLONE Russian patent published in 2011 - IPC B04C1/00 B01D45/12 

FIELD: process engineering.

SUBSTANCE: invention is intended for separation of dispersed particles from gases. Cyclone comprises cylindrical housing with tangential inlet branch pipe, cover with axial outlet branch pipe, and bin with slurry discharge branch pipe. Cyclone housing accommodates spiral-like perforated multi-turn insert rigidly secured to cover at its top part, or arranged with clearance to cover. Height of inner turns is smaller than that of outer turns. Pitch at insert top relates to that at insert base as m:n, note here that m>n or m<n, where m and n are natural numbers. Said coil features increasing or decreasing pitch as coil diameter decreases. Said insert features decreasing diameter of holes along twisting spiral while spiral perforation starts from second turn. Insert features cylindrical and truncated cone shape with larger base secured to cyclone cover. Inlet branch pipe is mounted at housing center at right angle to its vertical axis, or atop the housing, or at its bottom at acute angle to its vertical axis.

EFFECT: higher quality of gas cleaning.

6 cl, 11 dwg