Chute Drawing Board

The Problem

A major cement manufacturer in South America was experiencing with a highly cohesive limestone and clay mixture. During rainy periods, the chute would plug every few hours, requiring operators to manually dig-out the contents in the chute and wash it down with high pressure water.

Though of the limestone/clay mixture was performed at multiple moisture contents and a viable chute design was issued to the client, plugging resulted upon startup due to the chute being incorrectly fabricated and installed.

The delivery belt conveyor operated at about 4 m/s and delivered limestone and clay at a rate of 2,000 TPH.

Jenike & Johanson to determine the cause of the plugging problem in the transfer chute. This chute was just one of several in a belt conveying system that delivered raw materials from a remote quarry to the plant.

The Solution: