Adjoining the fermenting vat room is a section of the plant given up to the manufacture of pure yeast and this and the fermenting rooms are level with the ground, have solid walls whereby a uniform temperature is obtained, and plenty of space for proper ventilation of the vats. A gallery traverses the room about midway the height of the vats so that convenient access may be had to them. The distilling room is high enough to allow for the setting of the various columns, separators and condensers at their proper heights relative to each other, and should be so arranged as to its several floors or stages that access to the various pipes and apparatus may be easily had. The steam generator for the column is located in an adjacent room.
In addition to this there should be a malt house for the preparation of malt, located conveniently to the saccharifying building; an engine and boiler room so placed that power may be conveniently transferred to the mixers, stirrers and pumps and to generate steam for the Henze boilers; while adjacent to the distilling building should be the storage tanks and de-naturing department.
Fig. 56.—Grain Distillery. Capacity 2,500 Bushels per day.
Another arrangement of apparatus for a grain distillery with a capacity of 2500 bushels per day is illustrated in Fig. [56]. This plant was erected by the Vulcan Copper Works Co., and includes separate stills for gin, alcohol, and rye whiskey, as well as a spirit rectifying column.
The milling and grain mixing departments, the yeast room and the fermenting room are arranged on the several floors of one building, in the basement of which is located the vacuum cooker and drop tub and coolers described on page [11] from which the mash is pumped into the fermenting tubs.
The second section of the building contains the distilling apparatus, storage tanks, charcoal rectifiers and spirit rectifying apparatus, while the third section of the building comprises the boiler house and engine room.
