Western Cape Business News

Send  Share  RSS  Twitter  06 Oct 2009

MANUFACTURING: Saldanha's Improved Conveyors


Recent Western Cape Business News

WEBA Chute Systems was awarded a contract to upgrade the bottom sections of the existing Weba transfer points for the optimisation project of Port of Saldanha.

As a result of an increased demand for exported product, the expansion programme focuses on several projects aimed at increasing efficiency as well as throughput. These require the provision of a second tippler, increasing the stockpile area, a third stacker/reclaimer and additional conveyor capacity to provide more flexibility. As part of the upgrade programme the current conveyor system is being refurbished.

The need to upgrade the bottom of the chutes arose because the conveyor system is being upgraded from 35 to 45° idlers,” Alwin Nienaber, operations and technical director of Weba Chute Systems, says. These upgraded chutes were delivered in the second quarter this year.

Nienaber explains that Weba Chute Systems are not an alternative to conventional chute systems, but use a completely different approach to achieve a ‘supertube’ effect whereby control of volume, speed and direction is possible at all times. “The product will flow through the Weba Chute with 98% of the material running on material resulting in minimum wear.”

The Weba Chute System is able to control the flow of the material during its journey through the transfer point not only reducing wear, but also eliminating spillage and excessive impact on the receiving belt.

Each Weba Chute System is custom designed for the application, taking into account factors such as belt width and speed, material shape and size as well as throughput. When used on a new project, the result is the optimum design configuration for the application with the best belt cleaning arrangement and ideal selection of belt type and size.

This contract scope includes the design and supply of two new ship loader chutes. They are to feed a constant 10 000 tph with peaks of 11 000 tph.

Due consideration is being given to factors such as eliminating fines accumulation and blockages as well as ensuring that at discharge the resulting component of belt impact velocity is within 10% of the belt speed,” Nienaber says.

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