宇宙刑事国语版全集剧情介绍:During the three seasons I labored on Hawkins' plantation, I was employed a considerable portion of the time in the sugar-house. He is celebrated as the producer of the finest variety of white sugar. The following is a general description of his sugar-house and the process of manufacture:The mill is an immense brick building, standing on the shore of the bayou. Running out from the building is an open shed, at least an hundred feet in length and forty or fifty feet in width. The boiler in which the steam is generated is situated outside the main building; the machinery and engine rest on a brick pier, fifteen feet above the floor, within the body of the building. The machinery turns two great iron rollers, between two and three feet in diameter and six or eight feet in length. They are elevated above the brick pier, and roll in towards each other. An endless carrier, made of chain and wood, like leathern belts used in small mills, extends from the iron rollers out of the main building and through the entire length of the open shed. The carts in which the cane is brought from the field as fast as it is cut, are unloaded at the sides of the shed. All along the endless carrier are ranged slave children, whose business it is to place the cane upon it, when it is conveyed through the shed into the main building, where it falls between the rollers, is crushed, and drops upon another carrier that conveys it out of the main building in an opposite direction, depositing it in the top of a chimney upon a fire beneath, which consumes it. It is necessary to burn it in this manner, because otherwise it would soon fill the building, and more especially because it would soon sour and engender disease. The juice of the cane falls into a conductor underneath the iron rollers, and is carried into a reservoir. Pipes convey it from thence into five filterers, holding several hogsheads each. These filterers are filled with bone-black, a substance resembling pulverized charcoal. It is made of bones calcinated in close vessels, and is used for the purpose of decolorizing, by filtration, the cane juice before boiling. Through these five filterers it passes in succession, and then runs into a large reservoir underneath the ground floor, from whence it is carried up, by means of a steam pump, into a clarifier made of sheet iron, where it is heated by steam until it boils. From the first clarifier it is carried in pipes to a second and a third, and thence into close iron pans, through which tubes pass, filled with steam. While in a boiling state it flows through three pans in succession, and is then carried in other pipes down to the coolers on the ground floor. Coolers are wooden boxes with sieve bottoms made of the finest wire. As soon as the syrup passes into the coolers, and is met by the air, it grains, and the molasses at once escapes through the sieves into a cistern below. It is then white or loaf sugar of the finest kind—clear, clean, and as white as snow. When cool, it is taken out, packed in hogsheads, and is ready for market. The molasses is then carried from the cistern into the upper story again, and by another process converted into brown sugar.相关影视:宇宙刑事国语版全集