| 摘要 |
<p>Apparatus for cooling or freezing food items comprising an entrance module (10) having a top (8), bottom (5) and four walls (2,3,6) comprising an inlet (11) through a first wall (6) for introducing food items in to the entrance module (10); a belt (16) for conveying the food items from the inlet (11) through the entrance module (10); an impeller (32) for circulating vaporised liquid cryogen above and below the belt (16); an impinger (17) capable of directing the circulated vaporised cryogen in to a plurality of impingement jets in the vicinity of the food items; and, a sprayer (25) for providing at least one stream of liquid cryogen in to the impingement jets; and an exit module (40) having a top (8), bottom (5) and four walls comprising a belt (16) for conveying the food items conveyed through the entrance module (10) through the exit module (40); a divider baffle (7) for conveying at least a portion of the vaporised cryogen from the entrance module (10); an impeller (32) for circulating the vaporised cryogen above and below the belt (16); an impinger (17) capable of directing the circulated vaporised cryogen in to a plurality of impingement jets in the vicinity of the food items; and, an outlet (42) capable of allowing cooled or frozen food items to exit the exit module (40). <IMAGE></p> |
