| 摘要 |
A material recovery process for used oil filters and oil contaminated materials. In a preferred embodiment, the process includes the steps of loading wire mesh baskets or racks with a plurality of used oil filters containing oil. The baskets are thereafter loaded into a sealable furnace. The furnace is a sealed vessel with air regulated through a series of burners. The oil filters are heated in the furnace in a first stage to a first temperature range for a first given time period. Oil released from the oil filters is drained from the furnace. The oil filters are heated to a second temperature range for a second given time period. The oil filters are thereafter heated to a third temperature range for a third given time period. Finally, the furnace is cooled through use of a plurality of air manifolds.
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