DEVICE FOR THE AIR PURIFICATION Russian patent published in 2006 - IPC B04C9/00 

FIELD: mechanical engineering; metallurgy; power industry; other industries; production of the devices for the air purification.

SUBSTANCE: the invention is intended for the air purification and may be used in mechanical engineering, metallurgy, power industry and other industries. The device contains the final fine filter, the fan and the dust-catcher. The final fine filter has the cylindrical body with the inlet tangential branch-pipe, the dust collector with the dust discharge mean, the filtering element is mounted inside the jacket with the outlet branch-pipe. The fan is rigidly fixed on the cover of the dust catcher, and its outlet branch-pipe and the inlet tangential branch-pipe of the cylindrical body of the final fine filter are rigidly linked among themselves for the short way of the passage from the fan into the body of the final fine filter of the solid impurities accumulated on the contour of the external boundary of the airflow under action of the centrifugal forces in the spiral of the fan and washing by this air flow contour of the internal wall of the cylindrical body of the final fine filter. The dust catcher has the cylindrical body with the inlet tangential branch-pipe connected with the dust collector, the cone with the relief valve, the covers with the hole and the conical nozzle located inside the cylindrical body. At that the cone of the nozzle passes through the hole in the cover of the dust catcher and enters the fan forming the fan inlet branch-pipe by the cone of the nozzle above the cover, and under the cover inside the cylindrical body of the dust catcher the nozzle forms the inertial chamber and settling chamber and the annular slit for passage of the thin layer of the polluted air flow between the external wall of the nozzle and the internal wall of the cylindrical body of the dust catcher. The device allows to separate multiply the solid impurities from the air flow and to trap them increasing the level of the air purification efficiency.

EFFECT: invention allows to multiply separate the solid impurities from the air flow and to trap them increasing the level of the air purification efficiency.

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