USED OIL CLEANING INSTALLATION Russian patent published in 1996 - IPC

FIELD: oil cleaning. SUBSTANCE: installation is furnished with a vessel for reception and cleaning of water and impurities from installation apparatuses, and a conveyer for collection, drying and discharge of impurities. The intermediate filter is spark-proof and has a system for water supply to the lower part of its casing, and a liquid level gauge is installed in its upper part. Devices for supply of demulsifier are positioned before the pump used to feed used oil from the thermosump and before the pump used to feed oil to separating tanks. The thermosump is installed between the coarse filter and intermediate filter, which through a centrifuge and separating tank is connected to the electrical cleaning apparatus furnished with a zone of settlement and deposition of big water drops, a gauge indicating the liquid level in its upper part, and an indicator of phase separation between water and oil in its lower part. EFFECT: enhanced quality of cleaning. 2 dwg