Method for producing granules from waste pearlitic dust

摘要

the invention concerns the manufacture of granules of waste dust perlitowego, intended for use in construction, among others. in tynkarskich thin-film devices. a way is that to granulatora lining is dust perlitowy about uziarnieniu below 0.5 mm and natryskuje binder, in the form of an aqueous dispersion of the polymer.apply 50 - 150 parts by weight per 100 parts by weight of the binder. in the initial stage of the process of apply turnover drum 1 - 20 rpm, and subsequently, during 3 - 15 minutes, increasing to 50 - 100 rpm, and at the same time, heats the radiacyjnie mass in the entire volume of the radiation infrared, to the temperature not higher than 80u00b0c.the mixing is continued for 5 to 30 minutes, after which the drought konwekcyjnie stream air for a period of 60 to 180 minutes, keeping the temperature of forced air at 40 - 80u00b0c until spherical granules of 0.5 - 1.5 mm, and the moisture content below 1.5% by weight, of what jmniej 70% by weight of dust perlitowego.