METHOD OF CLEANING FLUE GAS FLOW AND DEVICE TO THIS END Russian patent published in 2010 - IPC B01D45/00 B04C9/00 

FIELD: process engineering.

SUBSTANCE: inventions are intended for gas cleaning. Proposed method is implemented in device that comprises preliminary separation apparatus with swirling chamber, flue-gas pumps, cyclones, gas ducts with branch pipes and two shell rings. Swirling chamber has outlet branch pipes communicated with cyclones, while cyclones outlets are communicated with shell ring branch pipes. Swirling chamber consists of cylindrical shell arranged between two parallel vertical walls with holes made at their centers to house rectifying apparatuses. Said cylindrical shell has inlet hole with inlet branch pipe and two L-like outlet holes with outlet branch pipes. Inlet branch pipe is arranged at swirling chamber top half, between two vertical wall, while outlet branch pipes are fitted on quarter girth opposite inlet hole at swirling chamber top half and furnished with stepped splitter. Cylindrical shell inner surface has main and additional guides arranged along helix line. Main guides start from horizontal plane running across axial holes axis get combined thereat and, further on, they terminate at the point inlet branch pipe inner part is jointed with inlet hole at. Additional guides are arranged similarly to the main guides. They start from horizontal plane whereat they are spaced apart by inlet hole width and, further on, they deflect along helix line one from another with equal spacing to get jointed to stepped splitter between steps to stay 1/2 helix lead from vertical walls. Their height is smaller by third than that of the main guides.

EFFECT: higher reliability, lower production costs.

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