Method and apparatus for sterilizing fresh fruit
A wash tank has a conveyor belt traversing through a sterilizing wash bath. Fruit is loaded into the wash tank by way of an inclined ramp having a swinging barrier at the end thereof. The conveyor belt has rows of chevron shaped fingers extending generally transversely therefrom. The fingers extend...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A wash tank has a conveyor belt traversing through a sterilizing wash bath. Fruit is loaded into the wash tank by way of an inclined ramp having a swinging barrier at the end thereof. The conveyor belt has rows of chevron shaped fingers extending generally transversely therefrom. The fingers extend through slots in the ramp to push the fruit through the swinging barrier and into a cage. The conveyor belt and fingers pass through the cage, which cage has a top and sides. The conveyor fingers push the fruit through the cage and the wash bath. The fruit, which tends to float, is kept wholly submerged in the wash bath by the cage. This ensures that the entire skin of the fruit is washed and sterilized. A grate along the sides of the conveyor captures large debris. Hold down plates guide the upper portion of the conveyor belt from a descending portion to a horizontal portion and then to an ascending portion relative to the water bath. There is also a second conveyor located at the outfeed end of the wash tank. Rotating brushes clean the conveyor. The second conveyor is controlled by a photoelectric sensor at the far end thereof. When fruit is present at the far end of the conveyor, the photoelectric sensor and the controller stop the motion of the second conveyor so as to preserve the sterile integrity of the fruit. |
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