The Mechanical Handling and Storing of Material

Forfatter: A.-M.Inst.C E., George Frederick Zimmer

År: 1916

Forlag: Crosby Lockwood and Son

Sted: London

Sider: 752

UDK: 621.87 Zim, 621.86 Zim

Being a Treatise on the Handling and Storing of Material such as Grain, Coal, Ore, Timber, Etc., by Automatic or Semi-Automatic Machinery, together with the Various Accessories used in the Manipulation of such Plant

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THE WAREHOUSING OF GRAIN 681 Hgs'»fs'toSTl)' a'*” the h>draUl'C installation for manipulating the lifts, etc. (see The grain is received by the elevator from the railway siding, and is delivered to æ ™gh,ng machlne> «hence it is carried by a second elevator to the top of the buildin«, a”d fed on to a band conveyor extending the whole length of the building. This is provided with a throw-off carnage which will allow the grain to be deposited in any part of the warehouse Pipes reach from floor to floor, so that by means of the band conveyor and movable throw-off carriage the grain can be deposited on any floor of the granary from the one band conveyor at the top. There is a second band conveyor on a lower floor, which Will take the gram from any of the floors, either to the elevator to be asain elevated, or to be loaded. The second elevator is in the middle of the building, and can also, by means of an alternate spout, deliver to the hopper over the cleaning machine whence the grain reaches the second hopper, the lower portion of which is fitted with å 'g '"® machine for we.ghlng the grain into sacks. The smallest of the four illustrations ( lg. 971) is a section through the engine-house showing one of the gas engines, a pump and an accumulator. 6 ’ 1 1 ’ Granaries at Breslau.—These were also designed by Rudolf Dinglinger. The i ustrations, Figs. 972 to 975, show a longitudinal section through the whole of the g,ran®7’, ,aS wel as thJee cross sections. The cleaning plant is installed in the centre of the budding, grain being stored on either side. One wing is provided with silos, the other is used for storing grain on the floors. Since these granaries were designed, how- ever, the scheme has been so far modified that the silos have been superseded, the grain being stored only on the floor of the warehouses, the entire granary being fitted with noor bins. Grain is received at the centre of the building exactly in front of the cleaning apartment, either by rail, or by means of one of two barge elevators. After being elevated to the top of the building, it may either be passed through the cleaning plant0 or it may be carried by a band conveyor to either of the wings to be stored The ton band conveyors are fitted with throw-off carriages, so that any part of the granary can readily be served. The lower strands of these band conveyors are also used for with- drawing gram and feeding the cleaning plant, which consists of a warehouse separator with a full system of cockle and barley cylinders for eliminating any seeds from the grain which, when received, and prior to its delivery to either of the two elevators is passed through an automatic weighing machine. There are also further automatic weighers through which the grain is passed before being sacked. The barges can be brought alongside right under the receiving elevator, where they are discharged, as shown in the illustration, Fig. 975. This elevator is 36 ft. long from . centre to centre, and has a capacity of 40 tons per hour. It is so arranged that it can be lowered or raised to the level of the grain in the barges, and can also adjust itself to the water level of the river. The delivery of the elevator always takes place at the same spot. Prom this point the grain is removed through a spout to a second elevator, which in turn delivers it to the automatic grain scale, whence it passes through a grain-cleaning machine known as a warehouse separator, where it is again spouted to" the elevator shown in the centre of the grain warehouse. The receiving grain elevator can be raised or lowered by. a small winch. The elevator itself is one of the chain type, with sprocket wheels at top and bottom, the framing being substantially constructed of angle iron and timber. r The wheat elevated from the barge is, of course, in an unclean condition: the weighing machine, however, keeps an accurate record of all material, dirty or otherwise,