hopper screw conveyor for coal powder

Product Information

While industrial screw conveyors are used mostly in bulk handling applications, they are popular in agriculture as components of  farm machinery like threshers or balers. They also transport animal feed, grains and seeds to different locations.

Application Industry

The food processing industry also uses industrial screw conveyors to transport dry ingredients like salt, flour, nuts and any other raw material used to produce food products. These conveyors are always made from food grade stainless steel, which exhibits a smooth surface and is non-contaminating. They are also popular within the construction industry when mixing dry and wet materials to form cement or plaster. In some situations, screw conveyors will even outperform more standard types of conveyor systems.

Screw conveyors fabricated by screw conveyor manufacturers are found in numerous industrial applications in the agricultural, food and beverage processing, plastic, pharmaceutical, chemical, mining, oil and gas and construction industries. Because of their gentle handling and blending, screw conveyors can be used to transport a wide variety of materials in many different industries. Some examples of these products include carbon black, caffeine powder, gypsum, ferric sulfate, cocoa beans, flour, garlic powder, Epsom salts, vitamins, fiberglass, whey, lead oxide and many other materials.

Product Features

Because the screw will cut through materials during operation, sticky substances like gels, materials that do not breakdown easily or those materials not intended to be broken down are not ideal for screw conveyor systems to process. Rather, they are used mostly to transport dry to semi-dry bulk materials, both free-flowing and non-free-flowing.Screw conveyors have three different orientations: horizontal, vertical and inclined. Horizontal screw conveyors transport the material in a linear direction and require only atrough. 

Vertical conveyors carry material straight up and down and require a tubular casing to hold all the material inside. They are needed when material must be transported from a receptacle low to the ground to one that is very tall.

Compared to bucket elevators, vertical screw conveyors are lower maintenance and provide continuous conveying. Finally, many applications require the use of inclined conveyors, which are set at an angle. They require ample space and an increased amount of power to lift the material, but their slant economically transports bulk material between facility floors. Some are portable and mounted on stands, carts or vehicles and may be moved around a facility. Flexible screw conveyors are able to adjust their angle and may bend in different directions, creating a wider range of uses within a single facility. Most conveyors, however, are manufactured out of steel and are therefore unable to move.These conveyors transport loose, dry materials to and from vats, hoppers, silos, rail cars, barrels, trucks and pits. They can be powered by an electric motor, although some harness the energy from nearby machinery like a trailer’s power take-off shaft. Standard industrial screw conveyors are usually constructed with metal. However, some that are used in the food industry are made out of thermoplastic resin that has been injection molded and can withstand high impact and temperature without contaminating the products they carry. The selection of screw conveyors depends upon the industrial application, material and material consistency as well as additional operations required of the screw conveyors system.

Technical Data