Patent EP-2494873-A1 (EP)
Title: Cleaning device for a tempering machine
Inventor: BLAESING RUEDIGER
IPC: F28G9/00
Filed: 2011-03-03
Abstract: Dynamic heat exchanger (1) comprises a drive shaft (4) drivable by a drive, and mixing tools (5) which are connected to the drive shaft, for mixing the confectionery mass during its passage through the heat exchanger, an input (8), through which the confectionery mass is introducible into the heat exchanger, an output (9), through which the confectionery mass processed in terms of temperature, exits from the heat exchanger, a container, into which a cleaning composition is fillable, a first conduit, which connects the container to the input, and a pump for conveying the cleaning composition. Dynamic heat exchanger (1) comprises (a) a drive shaft (4) drivable by a drive, and mixing tools (5), which are connected to the drive shaft, for mixing confectionery mass during its passage through the heat exchanger, (b) an input (8), through which the confectionery mass is introducible into the heat exchanger, (c) an output (9), through which the confectionery mass processed in terms of temperature, can exit from the heat exchanger, (d) a container, into which a cleaning composition is fillable, (e) a first conduit which connects the container to the input, thus the cleaning composition is conveyable by a first conveying direction from the input towards the output by the heat exchanger, (f) a second conduit, which connects the container to the output in such a manner that the cleaning composition is conveyable in a second conveying direction, from the output towards the input by the heat exchanger, and (g) a pump for conveying the cleaning composition by the heat exchanger, where the pump is designed and arranged in such a manner that the cleaning composition with at least double the volume flow as compared to the volume flow of the confectionery mass, is conveyable by the heat exchanger. INDEPENDENT CLAIMS are also included for: (1) a cleaning device for cleaning the above dynamic heat exchanger; (2) cleaning the above dynamic heat exchanger comprising (i) charging a cleaning composition into the container, (ii) conveying the cleaning composition into the input of the heat exchanger towards the output of the heat exchanger through the first conduit in a first conveying direction, which connects the input of the heat exchanger with the container, and removing the cleaning composition from the first conduit, where the cleaning composition with at least double the volume flow as compared to the volume flow of the confectionery mass, is promoted through the heat exchanger, and (iii) conveying the cleaning composition into the output of the heat exchanger towards the input of the heat exchanger through the second conduit in a second conveying direction, which connects the output of the heat exchanger with the container, and removing the cleaning composition from the second conduit; and (3) designing the above heat exchanger as a tempering machine, a tubular heat exchanger, a de-crystallizer or a pre-cooler, and the cleaning device comprising the cleaning composition including cocoa butter, chocolate, fatty mass, oil or water.