The present grinding capacity of three thousand eight hundred tons of cane a day is shortly to be increased to five thousand tons, when the factory will be the largest in the world.
The main building, entirely of steel construction, has a frontage of 312 feet and a depth of 234 feet on one side and 330 feet on the other. Separate buildings are devoted to carpenter shops, machine shops, foundry, refrigerating and ice plants.
Besides the usual full equipment of pumps, juice heaters, clarifiers, filter presses, etc., the factory installation includes ten 600 horsepower vertical water tube boilers with bagasse burning furnaces, automatically fed by bagasse carriers and the latest improved type of furnace feeders; two tandems of 36 inch × 84 inch nine-roll mills, with crushers, each tandem of mills being driven by one 32 inch × 60 inch Corliss engine and each crusher by one 20 inch × 42 inch Corliss engine. Two Lillie Quadruple Effects, each of a capacity to evaporate 600,000 gallons, reversible both as to vapor and liquor. Four 14 inch steel vacuum pans, each equipped with its own vacuum pump and condenser. For the injection water, three-stage direct connected centrifugal pumps are used, one of which is a reserve, throwing 3,500 gallons of water per minute. Twenty-two crystallizers, with an aggregate capacity of 37,400 cubic feet; thirty 40 inch Weston centrifugal machines and the most improved installation of conveyors, and other auxiliary and automatic machinery of practical design for the handling of the finished product. Three molasses storage tanks, of 425,000 gallons capacity each, accommodate the final molasses thrown off by the factory. These are situated near the wharf, and from them shipment in bulk is made directly into deep draught tank steamers.
The company’s railroad is thirty-five miles in length, of standard gauge, laid in 60-pound rails, and furnished with cars completely made of steel and having each a capacity of twenty tons.
When it is considered that the entire tonnage of many thousand acres must be transported within a certain period to a central point, and that the supply of cane to the factory must be equal and continuous to avoid the losses that result from retardation or stoppage of the mill, the great importance of the transportation system on a plantation may be appreciated.
The modern method of the large central with its immense sphere of influence, necessitates that the railroad be thoroughly equipped and efficiently managed. The old practice of carrying the cane from field to factory in an ox cart has passed into disuse along with the small mill, and has been superseded by the present railroad, with standard gauge roadbeds, heavy rails, steel cars, powerful locomotives, and schedule running, the whole being under the direction of a practical railroad man, as train despatcher. Although the standard gauge is often used, the narrow gauge is generally employed. On estates which are a considerable distance from any trunk line or public road, the latter is preferable on account of the lower cost with correspondingly smaller car capacity; while on large estates, where the cars have a capacity of twenty tons or over, it is necessary to lay the standard gauge road for the greater efficiency and smaller cost of maintenance.
Opinions vary as to the most convenient and economical size of car to be used on small and large plantations. It is, however, beginning to be generally admitted that the larger the car, having in mind the weight of the rail, the better the results. Experienced constructors are now recommending a steel frame car, mounted on strong trucks, with automatic couplers and air brake attachments. A steel car has been found by carefully observed experience to have a longer life than a wooden one, since it is in the field the year round, and if it is well painted the deterioration is much less than with the other style.
Recently, plantation operators have learned that it is a mistake to use light locomotives with heavy loads. The result is an abnormal deterioration, while when a locomotive of sufficient power and weight is used, less trouble is experienced in hauling the train and the wear and tear is minimized. Up-to-date plantations are furnished with an adequate round-house, where the engines can be under the eye of an experienced mechanic, and where repairs can conveniently be made.
Closely connected with the railroad is the telephone system, which is of great service to the train despatcher, in many instances avoiding serious delays at the mill. The telephone is also, of course, in constant use by all branches of the operation.
The method of discharging cane from the cars is very different from the old slow process, which was akin to that of unloading a hay wagon with pitchforks. Nowadays an electric overhead travelling crane lifts the cane from the car, weighs it automatically in suspension, and then drops it into the cane hopper and elevator.