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The story of chestnut extract

items 23 of 38 items
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  • Evaporating, Drying, Packing, Testing OF CHAMPION EXTRACTS PA.GES twenty-four to thirty show the evaporating processes in developing the extract liquor to its proper consistency and character for the tanning industry. Champion uses the most modern evaporating equipment. This operates in multiple units for economy of steam consumption. Triple and quadruple effect evaporators, for example, operate in series to evaporate the excess water content from the extract liquor by means of varying degrees of vacuum. Starting with a small pressure of steam in the first evaporator the vapor is carried through copper tubes to the others in multiple. The vapor in the first unit heats the extract liquor in the next, which is under vacuum, until the finished extract is drawn from the last effect at the desired density. This last effect is kept at maximum vacuum in order to have the lowest possible temperature on the finished extract, thus maintaining the good color of the extract. The development of this equipment and these modern methods have been contemporary with the growth of the Champion extract plant. Today, with a capacity for the production of 250,000 pounds daily, the Champion extract plant fully deserves the world-wide recognition it receives for high quality of products. The Champion mills introduced the production of powdered extract in America, through the use of vacuum-drum dryers. A machine of this type, having been used in other industries for somewhat similar purposes, was first applied to drying in the Champion mills after two years of experimentation. The vacuum-drum dryer is a machine which operates on the splash principle. It has a steam heated, revolving drum that dips into a tray of liquid extract. Upon the outside of the drum thus is deposited a coating of liquid extract which is removed in powder form by a close fitting blade just before the surface is immersed again. Maximum economical and efficient operation is assured by the condensation of vapors that are formed inside the equipment, and loss of extract that might be carried away is avoided. The powdered extract is conveyed from the dryer to screens and from there into bins for packing. Chemical tests for the maintenance of the high quality of Champion liquid and powdered extracts are most rigidly adhered to for the protection of the tanning industry. 23
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Object’s are ‘parent’ level descriptions to ‘children’ items, (e.g. a book with pages).