Dear Mahmud

For iron ore application in our opinion high angle conveyor either side wall type or sand witch type will be better than bucket elevator

A R SINGH ■

Please consider the application. There are many pitfalls in poor designs. In iron ore, if you are making HBI or DRI then lump size degradation should be considered. You should be aware of the loss of product and its consequences in the reactor. ■

Dear Mr. Mahmud,

There is conveyor called belt bucket conveyor cum elevator. This item is known by special trade names (in general I do not mention trade names in the forum). In this type of conveyor, often there is a horizontal portion to load the material, vertical portion for lifting up and again a horizontal portion at the top. If you are thinking of this type of equipment, then I would suggest you to keep the horizontal portion bare minimum, because the belt for this type of conveyor is very expensive. Such conveyor cum elevator are used for iron ore pellets in India, where I have observed speed up to 2 mps. When you are curtailing horizontal distance of this item, the same to be compensated by regular troughed belt conveyor, for economy.

You have a lift of 36 m in a horizontal distance of 82 m, this amounts to an average inclination of about 24 degrees. For this type of arrangement, you can have a clip type belt in conjunction with troughing, or you can have a flat belt with partition (buckets) as mentioned in first paragraph.

The belt width can only be chosen in conjunction with type of conveyor and speed that can be used.

Regards,

Ishwar G Mulani.

Author of Book : Engineering Science and Application Design for Belt Conveyors.

Author of Book : Belt Feeder Design and Hopper Bin Silo

Advisor / Consultant for Bulk Material Handling System & Issues.

Email : parimul@pn2.vsnl.net.in

Tel.: 0091 (0)20 25882916 ■

Dear Mr. Mulani,

Can you tell where such installation is running successfully in India? or abroad?

We are badly in need of such system for pellets handling i.e. feeding to DRI furnace flexowell. The height requirement is around 19 mtr. Mtrl to be fed through hoppers by dumpers. Horizontal portion can be kept as required.

Rgds, ■

Dear shah

for iron ore application you can see instalation of these conveyors at following locations in india

1.0 VIKRAM ISPAT 125 KM FROM BOMBAY NEAR ALIBAGH

2.0 ISPAT INDUSTRIES NEAR PEN MAHRASHTRA

3.0 ESSAR STEEL HAZIRA

4.0 JINAL VIJAYNAGAR

THESE ARE MAJOR INSTALLATIONS IN INDIA HAVING fLEXOWALL CONVEYORS HAVING UP TO 103 M LIFT

FOR OTHER APPLICATIONS YOU WILL FIND MORE THAN 100 INSTALLATIONS

A R SINGH ■