FREMGANGSMAATE VED TOERKING AV STEINMATERIALER.

摘要

In the manufacture of products which involves drying and heating of different fractions of stone and mineral filler, drilling cuttings are used as part of the filler material, said drilling cuttings having first been purified and then processed in order that the mineral substance contained in the drilling cuttings has a satisfactory grain size. At the same time, the oil that is contained in the drilling cuttings wholly or partly constitutes the fuel for heating and drying the stone and mineral materials.