Classifying – separating – and assorting solids – Magnetic – Paramagnetic
Patent
1994-03-21
1996-05-28
Bollinger, David H.
Classifying, separating, and assorting solids
Magnetic
Paramagnetic
209 121, 209 38, 209636, 209225, 209228, 209935, B03C 100
Patent
active
055202888
ABSTRACT:
A mobile apparatus and process for the separation and recovery of abrasive grit material from blasting material containing waste material and contaminants. The mobile apparatus has a low profile which facilitates the movement of the apparatus to job sites. At the job site the blasting material is collected by the mobile apparatus through a flexible hose connected to a chamber which is under sub atmospheric pressure. A vacuum generator that reduces the pressure in the chamber has sufficient power to allow vacuum collection of the blasting material through the flexible hose when material flow might otherwise clog the hose. The abrasive grit material is removed from the blasting material by a self-contained, multi-step separation process situated within the chamber. The mobile apparatus utilizes an initial physical separator, a rotary screen separator, a magnetic separator, and an air wash separation device that are interconnected by a rotary lift wheel. The substantially pure abrasive grit material must pass through an airlock in order to exit the chamber during the recovery process. The abrasive grit material is transported by a conveyor to a holding bin on the mobile apparatus, and in certain embodiments can be transferred to blast pots mounted on the mobile apparatus for further blasting use.
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Allebach, Jr. Donald C.
Drenter John C.
Konitzer, Jr. Dieter A.
Bollinger David H.
PCT, Inc.
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