Posted on December 08, 1999 at 10:16:16:

In Reply to: inserts in powder silos posted by Marcos M. Pimenta on December 08, 1999 at 05:17:11:

It all depends upon what you want to use an insert for and the shape and duty of the silo.

for example: -

Reasons for Fitting Hopper Inserts

Some features are independent, others inter-related, more than one objective may apply.

Located in the Hopper Outlet Region

- To aid the commencement of flow

- To secure reliable flow through smaller outlets

- To Increase solids flow rates

- To improve the consistency of density of the discharged material

- To secure mass flow at reduced wall inclinations

- To expand the flow channel, secure a higher proportion of 'live' storage

- To improve the extraction pattern

- To prevent 'flushing'

- To reduce overpressures on feeders

- To save headroom/ secure extra storage capacity

- To counter or redress segregation

- To blend the hopper contents on discharge

- To improve counter current gas flow distribution

- To prevent blocking by lumps and agglomerates

Positioned in the Body of the Hopper

- To accelerate the de-aeration of dilated bulk material

- To reduce overpressures/prevent threshold compaction levels

- To alter the flow pattern for countering 'Arching' and 'Piping'

- To Secure Mass Flow at lower wall angles

Fixed at the Hopper Inlet

- To reduce segregation

- To reduce particle attrition

- To secure a higher fill level

- To divert oversized product

- To counter excessive wear

- For personnel safety

If you would care to contact me with more details of your interest I may be able to advise more specifically.

Lyn ■