This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Screw conveyor" – news · newspapers · books · scholar · JSTOR(September 2014) (Learn how and when to remove this message)
Archimedes' screwCentreless screw conveyor
A screw conveyor or auger conveyor is a mechanism that uses a rotating helical screw blade, called a "flighting", usually within a tube, to move liquid or granular materials. They are used in many bulk handling industries. Screw conveyors in modern industry are often used horizontally or at a slight incline as an efficient way to move semi-solid materials, including food waste, wood chips, aggregates, cereal grains, animal feed, boiler ash, meat, bone meal, municipal solid waste, and many others. The first type of screw conveyor was the Archimedes' screw, used since ancient times to pump irrigation water.[1]
They usually consist of a trough or tube containing either a spiral blade coiled around a shaft, driven at one end and held at the other, or a "shaftless spiral", driven at one end and free at the other. The rate of volume transfer is proportional to the rotation rate of the shaft. In industrial control applications, the device is often used as a variable rate feeder by varying the rotation rate of the shaft to deliver a measured rate or quantity of material into a process.[2]
Screw conveyors can be operated with the flow of material inclined upward. When space allows, this is a very economical method of elevating and conveying. As the angle of inclination increases, the capacity of a given unit rapidly decreases.
The rotating part of the conveyor is sometimes called simply an auger.
^John Deere, Operation, Care, and Repair of Farm Machinery: Practical Hints For Handymen (2008) - 246 pages . ISBN 978-1599214610
^Michael P. Forcade. Screw Conveyor 101 (1999) 260 pages, ISBN 978-0967038308
A screwconveyor or auger conveyor is a mechanism that uses a rotating helical screw blade, called a "flighting", usually within a tube, to move liquid...
Rotating helical screw blades or chambers are used to move material in the Archimedes' screw, auger earth drill, and screwconveyor. The micrometer uses...
as the chain and bucket elevator, grain auger screwconveyor using the principle of Archimedes' screw, or the chain and paddles or forks of hay elevators...
expeller presses utilized a continuous screw design. The compression screws were much like the screws of a screwconveyor—that is, the helicoid flighting started...
and can be transported by truck or flatbed without disassembly. The screwconveyor is a machine to transfer the materials from the cement silos to the...
material enters a horizontal screwconveyor; the screwconveyor may be hand-cranked or powered by an electric motor. The screw squashes and mixes the food...
Instead of relying on a conveyor belt system to move the ice shavings into the snow-holding tank, a vertical screwconveyor system was installed, and...
known screw press of this design is said to have been invented by famous Greek mathematician Archimedes and is known as the screwconveyor. The screw conveyor...
through a commercial cooker — a long, steam-jacketed cylinder — by a screwconveyor. This is a critical stage in preparing the fishmeal, as incomplete cooking...
for cast iron or forged steel plain bearing material, especially in screwconveyor applications Stan, Felicia; Fetecau, Catalin (2012). "Characterization...
(1916). Evans's mill used a leather belt bucket elevator, screwconveyors, canvas belt conveyors, and other mechanical devices to completely automate the...
weed seeds from the intended harvest, or to remove deformed lead shot. Screwconveyor Cyclone (separator) Sieve Mineral processing Mechanical screening "Shanchuan...
collected and compacted on the wall of the bowl. A scroll (also screw or screwconveyor) rotates inside the bowl at a slightly different speed. This speed...
acts like a screwconveyor to lift the loose soil out of the way. When the hole reaches the desired depth and the tool is pulled out, the screw blade scoops...
grandfather was working on a screwconveyor. Detwiler came up to his grandfather and imitated him, but came too close to the screwconveyor, losing both of his...
the tunnel face. The muck (or spoil) is admitted into the TBM via a screwconveyor. By adjusting the rate of extraction of muck and the advance rate of...
belt but can also be a screwconveyor, a twin screwconveyors or a vibrating tube volumetric feeders, such as screwconveyors, delivering a predictable...
hopper. The coal in the hopper is conveyed to the coal pulverizer by screwconveyor. The coal pulverizer will crush the coal into pulverized coal. In the...
automatically inserts a 19.72-foot-long (6.01 m) rectangular pushbeam (screw-conveyor segment) into the center section of the machine between the Powerhead...
worm screen or the conveyor discharge, instigate the solids to move along the cone through an internal screwconveyor. The conveyor in the centrifuge spins...
typically composed of stationary machinery such as conveyor belts, screwconveyors, tubular drag conveyors, moving floors, toploaders, stackers, reclaimers...
usually made out of wood. At the end of the funnel is the inlet for the screwconveyor or the extraction pipe. More outlets in the storage room ensure unobstructed...
section became the Barber Greene paver line. The early pavers used screwconveyors to distribute the mix in front of a screed that tamped the mix. This...
Global Information
