Alumina is hygroscopic. Is the before and after moisture situation known from the downstream process data? ■

It is not clear whether the outlet jams due to lumps or cohesive arching. The first step is to estabish the reason for the blockages. Have comparative samples been tested for shear strength? ■

Originally Posted by S.T.Selvam

Our iron ore bunker of capacity 80 t is recently getting frequent material jamming at its discharge. The only change in the raw material is the % of alumina in iron ore is increased by 5%. Our bunkers are MS made with out any internal liners. But we never faced these problem of chocking before few months. Can anybody suggest any solution?

Dear Selvam,

Greetings.

we do have a solution to your problem of jamming in Iron Ore Bunkers with Magnetic Impulse Technology. for more details please contact us at amitengrs@yahoo.co.in.

Contact Persons : AMIT AGARWAL - 09848196449

V V R MURTHY - 09505175566

Regards

MURTHY.vvr

Asst.Manager(Projects)

+91 9505175566 ■

Dear Selvam,

Greetings,

We do have a solution to your problem of jamming in Iron Ore Bunkers with Magnetic Impulse Technology. For more details please contact us at amitengrs@yahoo.co.in.

Expecting a early reply..

Regards

Murthy.VVR

+91 9505175566

Originally Posted by S.T.Selvam

Our iron ore bunker of capacity 80 t is recently getting frequent material jamming at its discharge. The only change in the raw material is the % of alumina in iron ore is increased by 5%. Our bunkers are MS made with out any internal liners. But we never faced these problem of chocking before few months. Can anybody suggest any solution?

Added by Administrator as an example:

Iron Ore Bunker

■

Hello,

The easiest solution is to have S.S. liners at bunker outlet zone for about 1.5 / 2.0 m length from outlet opening. S.S. has less friction coefficient compared to M.S. and so, it may work, if jamming problem is not so acute.

The next solution is to install vibrator at chute outlet zone.

If both do not work, then the issue is of more serious nature i.e. outlet size is quite smaller compared to minimum required and needs to be increased, could be only along one axis or both the axes in plan view.

Regards,

Ishwar G. Mulani

Author of Book: Engineering Science And Application Design For Belt Conveyors (new print November, 2012)

Author of Book: Belt Feeder Design And Hopper Bin Silo

Advisor / Consultant for Bulk Material Handling System & Issues.

Pune, India.

Tel.: 0091 (0)20 25871916

Email: conveyor.ishwar.mulani@gmail.com

Website: www.conveyor.ishwarmulani.com ■