I-B Conveyor – NISHIMURA WORKS co. ltd.

Description

• I-B stands for Internal Bucket. This vertical conveyor has its buckets attached to the inside of the belt.
• Liquids and granules can be transported vertically.

Loading in the hopper drum

As you can see in the video, the belt and buckets move together through the hopper drum.
Material to be transported is fed into the hopper drum and naturally flows into the buckets.

Reference

This I-B Conveyor has a belt width of 1200mm. It can transfer 180t/hour to the equivalent height of a nine-story building (26m.)

Applications

Granulated slag, Coke, CoalLime, Iron powder, Glass, Ferroalloy, Wooden pellets, Refractory materials, Ceramics, Silica stone and sand, Gypsum

Structure

I-B Conveyor	VS. Outer bucket conveyor
Buckets are attached to the inside of the belt Material is fed into the hopper drum Material flows out of the bucket into the discharge chute when the bucket is inverted at the head pulley The belt is tensioned by the weight of the suspended hopper drum	Buckets are attached to the outside of the belt Material enters through the loading chute, collecting in the base. Buckets shovel up material for transport. This action is rough on the buckets Belt speed must be high to eject materials by centrifugal force at discharge

Loading

Smooth loading

The materials are loaded into the center of the hopper drum which rotates together with the belt and bucket. Materials smoothly flow into the buckets without impact.

Advantages of Smooth Loading

• Almost no damage to fragile materials
• Very little bucket wear
• Buckets do not fall off the belt
• Power requirement is low because there is no resistance when loading buckets
• Less loading noise than scraping method

Discharge

Smooth, gentle discharge

• As the loaded bucket approaches the head pulley, its free edges contact the sides and central shaft of the pulley, forming a closed space between it and the preceding bucket.
• When the preceding bucket separates from the pulley, the material is released and naturally falls into the discharge chute.

Merits of the I-B Conveyor

• Low power-load
  There is little fluctuation in power because of the natural flow of loading and unloading.
• Easy to maintain
  The floating hopper drum unit acts as a tension weight, lowering in position as the belt stretches, keeping tension uniform. Manual adjustment is unnecessary.

Optional Equipment

Belt tapper

A roller with a vibration motor can be placed on the outside of the belt at the discharge chute. The roller vibrates lightly, preventing conveyed materials from adhering to the bucket and causing them to fall directly into the discharge chute.

Rubber bucket

A change to rubber buckets is also effective for highly adherent products. At the head pulley, the rubber bucket edge touches the shaft, distorting the bucket. When the bucket separates from the pulley, it returns to its original shape and this causes all of the material to fall out.