A technological complex was developed in order to remove clay minerals, iron oxide, and fractions heavier than 2.9 tons/m3 from glass quartz sands. The basis of the scheme of the apparatus chain of the complex consists of a trammel screen with a new design, jigs, and concentration tables with electromagnetic inductors. It was shown under laboratory conditions that sand in the highest demand — VS-030-V grade — was obtained from sands containing (by weight): 97.32% SiO2, 0.92% Al2O3, 0.43% Fe2O3, 0.11% TiO2, and 0.04% Cr2O3. A distinguishing feature of the technological scheme of gravity separation of sands is the counterflow motion of the initial feed and the heavy fraction.
Origin
Unknown
Journal Title
Glass And Ceramics 73 7 Nov/2016 288-292
Sector
General
Class
G 4561b