| 摘要 |
FIELD: mining; metallurgy; food and other industries; production of devices for materials flotation. ^ SUBSTANCE: the invention is pertaining to the field of mining, in particular, to production of devices used for materials flotation, that may find application in metallurgical, food and other industries. The aeration assembly contains an aeration pipe for air supply and a mounted on it cone-shaped impeller with its smaller base downwards and a cylinder connected with a smaller cone base. The impeller in addition contains the second stage, that represents a concentric ring with the mounted on it radial vanes interposed in the radial slits of the lower stage upper base made in the form of a dead disk. In the lower third of the cone within the intervane intervals and in the connected with it cylinder there are vertical grooves forming a "corona". The lower stage radial vanes, the aforesaid lateral surface of which represents a truncated conical surface, are mounted perpendicularly to the cone surface. The technical result is improved quality of aeration of the fine pulp, decreased power consumption used for aeration, stabilization of the flotation process. ^ EFFECT: the invention ensures improved quality of aeration of the fine pulp, decreased power consumption used for aeration, stabilization of the flotation process. ^ 3 dwg |
