Page 22 - Hub-4 Magazine Issue 78

Aggregate
Crushing & Screening Feature
Smart Stockpiling by Telestack
Telestack are renowned within the aggregate sector for their innovative solutions and are widely regarded as the veterans of the industry. Understanding the needs of their customers has led to improvements across quarrying operations and the introduction of the “Self- Driving” smart stockpiling solution by Telestack, found on their radial telescopic conveying range, is one such example! By deploying technology and experience, this advanced autonomous stockpiling solution aims to maximise returns within any operation, ensuring operational efficiency, improved site safety, reduced operational overheads and complexity as well as a quality in-spec “blended” product.
The Telestack radial telescopic conveyor range has a proven record of performance and reliability operating in a range of aggregate applications around the globe. The mobility options of the unit allow the operator to utilise this technology anywhere on site, ensuring a high production capacity and a 30% more stockpile capacity on the same footprint when compared to fixed length/height conveyors. The smart system, once set up, can be operated locally by an operator or operated remotely using the smart onboard PLC (Programmable Logical Controller) to feed information back to the remote central control station. Once the unit’s physical constraints are established, the unit can work independently using the pre-programmed parameters determined in the set- up. The smart stockpiling system starts at a low working angle such as 8°, maintaining its lowest workable drop height throughout the operation, as the stockpile increases in increments. This is in comparison to a fixed length unit for example, that would start at an 18° angle, thus wasting more energy to discharge the product at a greater height. In addition, this also results in a greater potential to compromise the quality of the product due to fracture and degradation of the product caused by material dropping from the elevated
operating height. The reduced power usage required for the radial telescopic ensures less energy/fuel is used in the daily operation and fuel consumption can be further enhanced with the introduction of an optional VSD (Variable Speed Drive) by allowing the operator (remotely or locally) to increase or decrease the speed accordingly, depending on the needs of the operation.
The continuous autonomous stockpiling ensures that the blend of the product is maintained throughout the stockpile and a higher quality product is achievable ensuring the product is evenly mixed over a wide area. This helps to eliminate segregation, degradation, contamination and compaction, providing not only a higher-grade product for a lower stockpiling cost per tonne, but also reduced labour dependency, reduced labour costs as well as the environmental impact of reduced traffic, dust and noise. The smart system also hosts a range of automatic sensors that guide the independent unit as determined in the set-up. These sensors, as well as safeguarding the drop height of the product, also ensures that the unit will pause when
material has stopped flowing. This ensures the
integrity of the continuous stockpile
structure, producing an “in-spec” blended
product. This would be a significant
factor for many in the aggregate sector
for example, where product integrity is
critical.
The Telestack range of radial telescopic stackers are available in lengths of 32m (110ft), 42m (140ft), 46m (150ft), 52m (170ft) and 58m (190ft) with possible stockpile capacities up to 200,000 tonnes at 270°. Stockpiling rates ranging from 100-3,000tph, stockpile heights up to 20m (65ft) are easily achieved.
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www.hub-4.com January/February - Issue 78