Product category:
Powder and Solids Handling
News Release from: Robin Engineering Services | Subject: Circle Feeder
Edited by the Processingtalk Editorial
Team on 06 May 2005
Further success for the Circle Feeder
The Circle Feeder presents a unique opportunity to solve the discharge problems which can occur when dealing with low density and fibrous products, such as cellulose and film flakes, in silos
The storage of fibrous and low density products, such as cellulose, film flakes and other fibrous products in silos, often creates difficulties, such as hang-ups or arching when it comes to product discharge Fibrous materials can arch even when the size of the silo outlet is relatively large
This article was originally published on Processingtalk on 16 Mar 2004 at 8.00am (UK)
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A new discharge aid for silos and storage hoppers
The Circle Feeder, a new silo/hopper discharge aid, is being offered in the UK by Robin Engineering Services in North Staffordshire, proved on glass cullet, mortar mixes and many other applications
Circle Feeder demonstrates its flexibility
Designed for the discharge of all types of products from silos in a controlled manner, and to eliminate the dangers of rat-holes, Circle Feeder systems have been proved a wide range of applications
And low frequency manual vibration (brute force) never provides a satisfactory solution for this problem.
Brute force will invariably only make the situation worse and lead to the formation of an even stronger arch.
The solution instead is to use a straight wall hopper with a diameter which exceeds the critical arching diameter of the product and install as a discharge aid the Circle Feeder.
The Circle Feeder consists of a stationary base plate, with a flow control ring and central rotating vanes, around which rotates a peripheral discharge ring.
The feeder is driven by a reduction geared motor, the shaft of which is extended through the base plate to engage with the rotating vanes.
These vanes, by rotating slowly, move the material radially from the centre to the periphery, ensuring first in-first out mass flow.
The peripheral discharge ring then guides the product to the outlet.
The Circle Feeder, with its large inlet, variable rotation speed and its variable flow control ring, presents a unique opportunity to solve with satisfaction the discharge problems which can occur when dealing with low density and fibrous products.
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