Food or edible material: processes – compositions – and products – Processes – Cooling – freezing – or treating cooled or frozen product,...
Patent
1993-07-12
1994-11-08
Yeung, George
Food or edible material: processes, compositions, and products
Processes
Cooling, freezing, or treating cooled or frozen product,...
62 73, 426416, F25C 500
Patent
active
053625099
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a method for making a frozen mass drinkable product ready for treatment, such as fruit juice or the like, which mass is stored in frozen state in a container.
Fruit juices are usually condensed into concentrates in the country of origin, stored in a container, deep frozen and subsequently transported to the country of consumption. There the concentrated juice can be further processed into drinkable products. In this process it has been found to be a problem to get the relatively large frozen mass out of the container easily and to then defrost it without there being any loss of quality.
The invention has for its object to provide a method with which this drawback is obviated, which method is distinguished by the following steps of: temperature of the obtained liquid amounts preferably to 2.degree. C. and to a maximum of 5.degree. C.
Since the container is heated on all sides, only a small part of the outer skin layer of the frozen mass has to be melted to be able to remove this mass as a block from the container. This block is then reduced so that while frozen flakes are created, they are nevertheless transportable. The drawback to transport by means of a pressure pump is that the fragments cake together again, so that it has to be heated again directly thereafter to remain sufficiently fluid and transportable. The heat supply according to the invention takes place in stepwise manner so that the temperature of the frozen mass can continually be measured at interim intervals, wherein the maximum temperature of 5.degree. C. for the end product is certainly not exceeded. This ensures a high quality of the end product.
The invention further relates to a device for performing the above stated method, which device is distinguished by a carrier for the container, heat supply means arranged close to the carrier, a station for emptying the container, a flaking apparatus for dividing the frozen mass into pieces and a heat exchanger for supplying heat, which exchanger is embodied as a transport tube of certain length which is connected to a transport pump and along which heat means are arranged.
The tube is preferably divided into sections wherein each section is provided with a temperature sensor, the measurement signal of which is used to control the heat supply in at least the following section. In a preferred embodiment the tube is arranged in the form of a serpentine, wherein one or more parts of the serpentine form a section.
According to a further development of the invention the tube is double-walled, in the inner tube of which the frozen mass is transported by the transport pump and the outer tube is connected to a feed apparatus for a warm liquid medium.
Above mentioned and other features will be elucidated further in the following figure description of an embodiment. In the drawing: contents on a carrier, of FIG. 1, wherein the carrier is embodied as conveyor on the end of which is shown a station for emptying the container and a heat exchanger, according to the invention, according to the invention, relative to water subject to the amount of heat supplied.
The container 1 shown in FIG. 1, also called a drum, has the known form, that is substantially cylindrical with two protruding ribs 2 along the outer periphery thereof. The container is provided with a closed bottom and a removable cover, the latter not being shown here.
Because of the fact that the ribs 2 are arranged, a frozen mass, such as for example frozen fruit juice, cannot be poured directly out of the container because the ribs of the ice block protrude into the hollow sides of the ribs 2 of the container.
For this purpose the container has to be heated on the outside in order to slightly melt the ribs of the ice block and the outer periphery thereof. This temperature increase may however not be such that the quality of the fruit juice is adversely affected.
According to the invention the container 1 stands on a carrier 3 which in the embodiment shown, FIG. 2, is embodied with a meander-shaped portion 4. Here the carrie
REFERENCES:
patent: 2863776 (1958-12-01), Lisher
patent: 4404810 (1983-09-01), Garland
patent: 4906486 (1990-03-01), Young
T. Hattori, "Thawing Tank Apparatus for Frozen Particle", Patent Abstracts of Japan, vol. 13, No. 249 (C-605) (3597).
Typhoon-Martens B.V.
Yeung George
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