DE223428C - Method of drying milk - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The invention relates to an improved embodiment of that protected by patent 223427 Method for drying milk and other liquids.

In the production of dry milk it is already common practice to dry the milk before it is dried split into cream and skimmed milk and each of these components or just one of to dry them for themselves, whereupon the two ingredients are mixed together again and the rest of the moisture is expelled by further heating the mass. · The application this measure on the milk drying process protected by patent 223427 leads to a valuable training and improvement of the same. On the one hand, the greater sensitivity of the Creams or milk fat against higher degrees of heat taken into account, on the other hand, however compared to known ones based on separate drying of cream and skimmed milk Milk drying process achieves the advantage that the whole process of milk powder preparation in a coherent process evenly, quickly and completely on a machine Way can be carried out while previously several individual processes independently of one another and, due to the lack of cohesion, an uneven end product revealed.

In the subject matter of the invention, the dried skim milk layer is combined with the cream layer in that it works automatically with the help of the main patent protected device is placed on the layer of cream, whereby the fat globules of the Creams are pressed into the protein layer in an unchanged state.

The drying rollers α and b are brought to different temperatures, namely the one on which the skimmed milk reaches is heated more strongly than the other on which the cream is brought in a known manner in a finely divided manner. The temperature of the skimmed milk drying roller is appropriately kept so that the coagulation point of the protein is not exceeded, while that of the other roller must remain within those limits in which the milk fat is not adversely affected, i.e. up to about 40 ° C, but in no case more than 50 °. The speed of rotation of the drying rollers corresponds to the prevailing temperature; the higher the latter, the faster the roller must rotate.

As usual, the milk is broken down into cream and skimmed milk, the latter being placed on the more heated roller α in the manner indicated in the main patent specification, ie finely divided and almost completely dried. The cream is applied in fine distribution to the roller b rotating in the opposite direction, e.g. B. by a mounted below the scraper f distribution device x. By having a

Extension β provided scraper d, which is arranged at the point at which the two drying rollers are closest, the almost dry skimmed milk layer approximately in the nature of a blotting sheet is constantly peeled off and placed on the still moist cream layer on the second roller b . The layer of skimmed milk eagerly soaks up the moisture in the cream and bonds closely with it. As a result, the moisture is, so to speak, led to the outside and is taken with it by the air flow directed into the apparatus. The warmth still inherent in the skimmed milk layer in and of itself contributes significantly to the drying of the cream.

As the roller b continues to rotate, the two milk constituents are dried together, and they then pass into the discharge channel, stripped off by the scraper f.

Of course, the rollers α and b can also be used and tempered vice versa. , ie the upper one is assigned the skim milk drying, the lower one the cream and total final drying. In addition, for carrying out the present drying process, the arrangement can also be made in such a way that the two rollers do not run on top of one another, but rather side by side.

Claims (1)

Patent claim: Embodiment of the method for drying milk protected by patent 223427, characterized in that the milk is broken down into cream and skimmed milk in a known manner, the cream, as usual, finely divided on a correspondingly lower heated drying roller (b), while the skimmed milk also finely distributed, heated up to another, will be placed below or adjacent to the first rotating in the opposite direction dryer roll (a), wherein the dried skim milk layer by means of which is arranged between two drying rollers scraper (d) from its roll (a) is lifted off and placed on the cream layer of the roller (b) , whereupon both layers are completely dried and lifted off in the usual way. 1 sheet of drawings.