Using mobile equipment to optimise heap leaching operations

Telestack explains why heap leaching is the low-cost method for extracting valuable metals from crushed or ground mineral ores.

This cost-effective and flexible approach has revolutionised the mining industry, particularly for metals like copper, gold, silver and uranium.

The efficiency and productivity of heap leaching operations can be significantly enhanced with the integration of mobile equipment, with these mobile solutions offering a range of benefits such as increased flexibility and reduced operational costs, making them indispensable in modern mining operations.

The key benefits of utilising mobile equipment in heap leaching applications include:

Enhanced flexibility

One of the primary advantages of using mobile equipment in heap leaching applications is its unparalleled flexibility. Traditionally, fixed conveyor systems limit the ability to adjust to changing mining conditions or to move locations quickly.

In contrast, mobile conveyors and stackers can be easily relocated and reconfigured as the heap leaching pad grows. This mobility ensures that the system can adapt to variations in ore deposit locations and changes in production requirements, allowing mining operations to maximise ore recovery while ultimately minimising downtime.

Cost efficiency

Mobile equipment can significantly reduce both capital and operational expenses. With fixed or semi mobile systems, any change made in the heap leaching operation, such as expanding the pad or moving to a new location, requires substantial investment in new conveyors and support structures.

Mobile equipment, on the other hand, can be redeployed across multiple sites with minimal setup time, reducing the need for costly new installations. Additionally, mobile systems typically require less downtime for preventive maintenance than fixed systems, leading to further cost savings over the life of the project.

Improved material handling

In heap leaching, efficient material handling is crucial to ensuring the leaching solution is evenly distributed over the ore, maximising precious metal recovery.

Mobile stacking systems are designed to optimise material placement, ensuring a consistent and uniform heap, which is vital for effective leaching. The material is not compacted unlike stockpiling with trucks and dozers, and this soft stockpile allows the acid to permeate through the ore, giving better leaching rates.

These systems can also handle a wide variety of materials, from finely crushed ores to coarser aggregates, ensuring versatility in different mining environments.

Types of mobile systems

Telestack can supply a variety of systems, including ones:

• Fed by tripper conveyor via link conveyors, cross conveyors and horizontal index conveyors to the stacker
• Fed directly by ADT trucks to truck unloaders, link conveyors, cross conveyors and horizontal index conveyors to the stacker
• Fed directly by ADT trucks to truck unloader to stacker

Customisation

Telestack can supply units designed with componentry to handle impregnated ore with various acids including optional extras for upgraded paint, acid resistant belts, acid resistant scrapers and liners, stainless steel control panels and instrumentation.

Telestack can supply units designed with winterised componentry to handle operating temperatures of down to minus 40°C including winterised belts, lower temperature scrapers, insulated and heated control panels, low temperature oil, low temperature bearings, insulated hydraulic tanks and low temperature seals on hydraulic oil.

Increased operational safety

Safety is a top priority in mining operations, and mobile equipment contributes significantly to a safer work environment.

By reducing the need for extensive infrastructure and manual material handling, mobile systems minimise the risk of accidents. There is no need for dozers, wheel loaders or trucks to be working at heights which reduces potential for accidents.

Moreover, many modern mobile systems come equipped with advanced safety features such as remote operation and automated controls, further reducing the risk to on-site personnel and operators.

Environmental benefits

Mobile equipment can also offer environmental advantages in heap leaching operations. Since these systems are designed for minimal site disruption, they reduce the environmental footprint of mining activities.

The utilisation of mobile equipment reduces the need for wheel loaders, dozers and trucks and diesel consumption, reduces dust generation, and lower emissions compared to traditional fixed systems.

Furthermore, their efficiency in material handling helps ensure that the leaching process is as effective as possible, minimising waste and reducing the overall environmental impact.

Telestack: A leading manufacturer of mobile bulk handling equipment

When it comes to mobile equipment for heap leaching applications, Telestack stands out as a global leader. With installations worldwide, Telestack has established itself as a trusted provider of mobile stacking, conveying, and material handling solutions. Telestack equipment is renowned for its reliability, efficiency and adaptability.

Telestack’s extensive experience and commitment to innovation ensures that its products meet the highest standards of performance and safety. Whether it’s for a small-scale operation or a large-scale mining project, Telestack offers tailored solutions that maximise productivity and minimise costs.

The proven track record and global presence makes Telestack a reliable partner for any heap leaching operation looking to optimise its material handling processes.

OPS Screening & Crushing and Mineral Processing Solutions, part of the OPS Group of Companies, are the exclusive Australian dealers for Telestack. With full national coverage, the group provides sales, hire, technical support, spare parts, and service for the Telestack range across Australia.