| 摘要 |
A filter box of the type used for separating solid materials from liquid having an outer shell constructed of a liquid impervious material and an inner shell having perforated sides and flooring and being disposed within said outer shell and spaced therefrom so as to define a material collection area between the two shells. Upon loading liquid-laden material into the filter box through the open upper end thereof, liquid and smaller particles pass through the perforated sides and flooring of the inner shell into the collection area leaving the larger solids within the inner shell for removal. One end of the filter box defines a hinge-mounted door for providing access to the interior of the filter box for removal of the larger solids as well as access to one end of the material collection area. One or more movably mounted hatch plates are provided in the flooring of the inner shell adjacent the opposite end of the box from the hinged access door to provide additional access to the material collection area so that the area can be washed clean following use. To prevent solids from falling down between the inner and outer shells during loading, the inner shell defines an outwardly projecting lip which extends over and about the opening between the inner and outer shells at the upper ends thereof.
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