Metalfab's PB Posibin allows dry bulk solids issue-free discharge from storage silos and bins. It is designed to process difficult to handle materials such as micron-sized powders to fibrous substances, and allow these materials to flow freely, on-demand, in a FIFO (first in, first out) basis.
The Posibin design showcases a static cylindrical bin fitted with Metalfab's signature bin activator. The vibrating motor unit, attached to the bottom of the bin equipped with solid steel suspension arms and a flexible reinforced sleeve, provides continuous movement of the product in the bin. A conical primary baffle, mounted within the bin activator, moves horizontally with the unit keeping the bin contents continually moving and eliminating potential clogging and stoppages such as bridging, ratholing, etc.
A secondary conical baffle, situated at the final discharge, moves at a different amplitude, preventing jamming and compaction in this critical stage.
Positive discharge or First In First Out (FIFO) flow of a silo is accomplished by the internal cone-shaped baffle which is rigidly attached to the body of the bin activator.
This vibrating cone replaces a major portion of the standard fixed cone. The bin activator unit moves horizontally by the unbalanced weights of an attached vibrator. The cone baffle relieves the weight of the material from the lower section of the bin activator and acts like a wedge as it moves beneath the material and pushes it in all areas adjacent to the cone's surfaces. This powerful force is also transmitted to the material in the upper portion of the bin as the motion is carried from particle to particle. Product discharges around the periphery of the baffle toward the outlet of the Metalfab bin activator.
Used in bulk solids material handling systems, Bin Activators, also known as Live Bottom Bins, Shaker Bins, or Vibrating Silo Bottoms, are used to create a flow of dry bulk solids from vertical storage bins. The Live Bottom will overcome sporadic or irregular discharge problems created by arching, bridging, and ratholing. The typical geometry on a standard 4:1 vertical round bin is a live bottom that is half the diameter of the silo.
For more information on a MetalFab PB Posbin and how it can improve your silo discharge processes, please contact a Thomas Conveyor & Equipment Pneumatic Engineer or call us today!