. Condensed milk and milk powder, prepared for the use of milk condenseries, dairy students and pure food departments. Condensed milk. Manufacture of Mii^k Powder 241 This drier is operated under a high vacuum, permitting rapid evaporation at a relatively low temperature. The actual drying time of the film of milk on the drum is about 6 to 7 seconds. The opera- tion is continuous and at the conclusion of the day's run the machine is washed out. If subsequently closed up and evacuated for a few minutes, the entire interior will be dry insuring a sanitary condition of the machine. 4. The Campbel
. Condensed milk and milk powder, prepared for the use of milk condenseries, dairy students and pure food departments. Condensed milk. Manufacture of Mii^k Powder 241 This drier is operated under a high vacuum, permitting rapid evaporation at a relatively low temperature. The actual drying time of the film of milk on the drum is about 6 to 7 seconds. The opera- tion is continuous and at the conclusion of the day's run the machine is washed out. If subsequently closed up and evacuated for a few minutes, the entire interior will be dry insuring a sanitary condition of the machine. 4. The Campbell Process.—A current of warm air passes through the milk upward until the milk has become. thick. The remainder of the drying is accomplished by exposure to heated air. The dried milk is then ground to a powder. This is the Campbell process, invented in 1900 and patented by J. H. Campbell of New York in 1902. 5. The Merrell-Gere Process.— The milk is condensed in the vacuum pan to about one-third to one-fourth its volume. The con- C. Fig. 62. The Campbell milk drier I A concentrated vessel, a outlet, b valve, c hot water jacket, c' hot water pipe, c° discharge of jacket, B air pipe, e connecting hose, f stand pipe, g air-distributing disc, t air chamber.—II E pug mill, i cylinder, j hopper, k chute, 1 horizontal shaft, m blades for stirring, m' projections for scraping blades, F Vermicelli-machine, n hopper, o cylindrical chamber, p piston, q spiral screw, q' worm-wheel, o' small holes, r endless traveling apron, s tray with perforated bottom.—^III G drier, t body of drier, H blower, t' flue, u opening to insert trays, u' opening for removing trays, vv endless chains with projections for supporting trays, w coil heater, w' pipe circu- lating hot Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
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Keywords: ., bookauthorhunzikerottofrederick, bookcentury1900, bookdecade1910
