摘要:
A heat exchange apparatus for use in the production of sugar confectionery or for tempering chocolate comprises a vessel (1) with a tubular and preferably substantially cylindrical heat transfer surface (2). The vessel (1) defines an inlet (10) and an outlet (13) higher than the inlet. Heat exchange means (5, 7, 8) such as steam jackets (5) and modulating valves (8) are provided for supplying heat to or removing heat from the heat transfer surface (2). Located longitudinally along the length of the vessel (1) is a shaft (21) which is provided with at least one piston (22). Means (23, 24) are provided for reciprocating said shaft within the vessel (1) whereby the product therein is agitated and substantially the entire heat transfer surface (2) of the vessel (1) is swept by the pistons (22) during each reciprocation cycle.
摘要:
A method for heating a sugar solution, characterised in that the solution is caused to flow along a tubular passage (66) surrounding a heated central tube (64), the tubular passage (66) being surrounded by an outer tube (24), the flow is forced around a plurality of diverters (70) which extend substantially across the passage (66), each of which diverters (70) deflects the solution from the major flowpath determined by the tubular passage (66), to induce eddies or small cross-currents in the solution flow, thereby to enhance the mixing of the solution and/or the heat transfer to the solution.
摘要:
An apparatus 10 for the evaporation and cooking of toffee (or other liquid mass) comprises a closed vessel 12 having an inlet 22 at the base thereof and an outlet 59, 60 towards the top and at one side of the vessel 12. A toffee premix liquor 28 is continuously fed in the inlet 22 and discharged through the outlet 59, 60. High speed counter rotating stirrers 48, 52, are provided in the vessel 12 to agitate the liquor 28 in a vigorous and turbulent manner, such as to form the liquor 28 into a vortex, the extremities of which are urged towards the outlet 59, 60. The vigorous and turbulent agitation of the liquor 28 assists the production of high quality toffee as a continuous process, at a relatively high throughput rate.