| 摘要 |
A tumble chiller comprises a housing provided with a door which incorporates a chute to allow bags of hot food products to be introduced into the chiller. Located within the housing is a rotatable drum having a perforated wall. The drum is partially immersed in a bath of cooling liquid. The axis of the drum maybe inclined to the horizontal. The drum is housed in a trough-like inner casing (28) which is positioned within a trough-like outer casing (26). In use water finds a level determined by a series of slots (30) positioned on opposite walls of the inner casing (28). The water flows through the perforations in the drum wall and into an inner passageway (44) formed between the drum and the inner casing (28). Scoops (40) cause water to flow through the series of slots (30) into an outer passageway (46) formed between a cooling jacket (32) and the outer casing (26), re-entering the inner passageway (46) through the slots (30) on the opposite side of the drum. The lower part of the inner casing (28) is formed by the cooling jacket (32) through which a coolant, such as ethylene glycol may flow via an inlet duct (54, Fig 3) and an outlet duct (56, Fig 3). |
