Installation for pulverizing and drying crude quarry products

Claim 1

An installation for pulverizing and drying crude quarried products utilizing the hot gases from a treatment furnace for the pulverized materials comprising a crusher, an upper inlet for the introduction of crude products into said crusher, a lower outlet in said crusher for crushed materials, a lower inlet in said crusher for the introduction of hot gases, an upper outlet in said crusher for removal of gases, a screen, a tube mill, an entry in said tube mill for crushed materials, an outlet from said tube mill for crushed materials, an inlet in said tube mill for hot gases, an outlet from said tube mill for gases, a dynamic separator, a lower chamber for said separator for the discharge of coarse crushed materials, a lower inlet in said separator for hot gases opening into said lower chamber, an intermediate inlet in said separator for hot gases, an upper inlet in said separator for crushed materials, an upper outlet in said separator for gases and crushed materials, separate conduits for feeding hot gases to said crusher, to said tube mill, and to said separator, means for supplying to said screen the crushed materialS leaving said crusher, means for returning to said upper inlet of said crusher the crushed materials not passing through said screen, means for supplying to the upper inlet of said separator the crushed materials passing through said screen, means for supplying to the inlet of said tube mill the crushed materials from said lower chamber of said separator, means for supplying to said screen the crushed materials leaving said tube mill, means for supplying the gases leaving said tube mill and said crusher to said intermediate inlet of said separator and means for conducting the gases from said upper outlet of said separator to a device for filtering and separating the crushed materials from the gases.