Feeder

Name:
Feeder
Detailed information:
An accessory equipment unit that provides controlled flow of materials of a wide range of particulate sizes to or from processing operations. Major types include the following: (1) Vibratory: an enclosed bowl or open trough, activated electromagnetically, that vibrates at a constant rate of 3600 oscillations a minute (electromechanical, hydraulic, and pneumatic types are also used). Capacities are up to 2000 lb/hr. The bowl type is applicable to large-size units of materials up to several inches in diameter (wood, plastics, ceramics, etc.). (2) Volumetric: an enclosed device that meters a particulate by volume; there are a number of types, including the rotary lock, the helix, and the roll. Bulk density, particle size, and moisture content of the material handled are important factors. (3) Gravimetric: a belt conveyor provided with a scale that continuously weighs the material passing over it. These are used in operations that are not suitable for volumetric feed.