REC «Mekhanobr-Tekhnika» (Russia):

Mikhaylova N. V., Ph. D. in Engineering Sciences, Chief Technologist, mikhailova_nv@npk-mt.spb.ru
Bizyaev O. Yu., Chief Designer
Spiridonov P. A., Chief Specialist

Present-day trends in application of roller type devices for separation of various types of mineral and man-made raw materials were analyzed. Effects of roller type screens and separators design features and operating modes upon separation efficiency were studied. It was established, that roller type devices proved to be most successful in separation of raw materials, difficult in separation due to high moisture content, adhesion, contamination with clay or other sticky components. A new promising trend in application of roller type screens was revealed – separation of difficult man-made raw materials of complex composition: wood wastes, construction waste, shredded automotive scrap, compost, municipal wastes. Just exactly in this niche design and operating features of roller type machines are utilized most successfully. It is proposed to use the principle under discussion in development of device for efficient recovery of glass and fine ash fractions from mixed municipal solid waste. This device simultaneously realizes two functions: glass disintegration and efficient separation of glass and small-size non-burning fractions. Its application will permit to improve the process owing to the following effects:
— additional crushing operation, performed for the purpose of glass disintegration prior to its separation, is eliminated from processing chain;
— simultaneous efficient recovery of fine fractions, batteries and glass into undersize product.

The work was performed with the financial aid from the Ministry of Education and Science of the Russian Federation for the Project No. 14.579.21.0111 UIPNIER RFMEFI57915X0111. R&D registration number АААА-А15-115122810075-7.

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