| 摘要 |
<p>An apparatus for keeping at a determined temperature, for a determined time, a product mixture flowing therethrough and consisting of a liquid of low to medium viscosity containing solid pieces, comprises a cylindrical vessel (1) provided at one end with an inlet (2) and at the other end with an outlet (3) for the mixture. A conveyor mechanism acting selectively on the solid pieces in the mixture is disposed in the vessel, whereby the speed at which the solid pieces are conveyed through the vessel can be adjusted irrespective of the rate of flow of the liquid through the vessel. The conveyor mechanism has a rotor (4) in the form of a shaft (6) coaxially rotatable in the vessel and provided with at least one series of rotor arms (7) on the shaft, extending radially and lying substantially next to one another and spaced apart in the axial direction. The ends of said arms reaching to a pointclose to the innerwall (8) of the vessel. The conveyor mechanism also has a stator (5) in the form of at least one series of stator arms (9) extending radially inwards from the wall of the vessel and lying substantially next to one another and spaced apart in the axial direction. The stator arms (9) extend between the rotor arms (7) and reach to a point close to the rotor shaft (6). The mutual distance between the rotor arms (7) and the mutual distance between the stator arms (9), in the axial direction, varies from the inlet (2) to the outlet (3), the variation occurring mainly in one direction. In the case both of the rotor arms (7) and of the stator arms (9;9 min ) a radially extending side edge of an arm is, viewed in the axial direction of the rotor (4) and the stator (5;5 min ), adjacent to or situated within the periphery of a following arm, so that a solid piece moving through the vessel (1) can pass through between two neighbouring arms only transversely to the axial direction of the vessel.</p> |
