The screw conveyor has a very simple structure,mainly consisting of the drive end,spiral shaft,tube,and inlet/outlet,resulting in low manufacturing costs.It has good sealing,effectively controlling dust during conveyance and avoiding material contamination and loss.Its small cross-sectional area makes it easy to arrange and install in crowded workshops.It is safe,reliable,has few maintenance points,requiring only regular lubrication at the drive head and hanger bearings.The conveying direction is reversible,allowing one conveyor to feed in two directions.It can be designed as fixed or mobile according to process requirements.
Specifications are defined by screw diameter(e.g.,ø160,ø200,ø250,etc.)and length.Conveying capacity ranges from 5 to 50 tons per hour.The conveying length typically does not exceed 30 meters;excessive length can lead to shaft torsion and a sharp increase in energy consumption.The speed is generally between 50-200 rpm.The inclination angle affects conveying efficiency,with the maximum angle usually not exceeding 45 degrees.The spacing of hanger bearings is determined based on material characteristics and shaft diameter to ensure the shaft deflection is within the allowable range.
Ubiquitous in feed mills,primarily used for:1)Conveying ground raw materials to the holding bin;2)Conveying mixed powder to the pellet mill buffer bin;3)Conveying finished pellets in the packaging section.It is suitable for powdered and granular raw materials like corn and soybean meal,as well as finished pellet feed.Due to its sealing,it is particularly suitable for conveying dusty materials.
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