Hoisting system material

The shaft hoisting system is a critical infrastructure system for an underground mine. The hoisting system or systems, provides access to the underground workings for employees and materials as well as lifts the product of the mine (ore) to the surface. 

With a hoisting system, there needs to be a loading pocket to feed the skips. The installation includes a pair of loading flasks fed by a single chute with a vibratory feeder to properly load the belt. The chute is equipped with an in-line chute that includes a chain gate to help meter the flow of material and an arc gate to shut off the flow entirely. The chute loads a vibratory feeder that loads the conveyor evenly to a flask to provide a metered amount of material to the skips. This portion of the system is illustrated in Figure 3. 

The orientation of surface shaft hoisting system components needing to match the underground materials handling system layout... 

As the largest structures in the L72 hoisting system, the headframe and skyshaft design were candidates for pre-assembly and optimisation of material use. This and several other factors were significant in the refinement of the structural concept accepted at Feasibility Study stage, which was a similar concept to the Telfer structure (Figure 4). 

Using two motors on the Rock Hoist, which are interchangeable with the motor on the Personnel/Material Hoist, provided a motor rating in excess of optimal duty cycle requirements for the Rock hoist. Calculations have been produced to estimate the effect of using overrated versus optimcd size motors on the rock hoisting system power consiunption. 

Transfer point Location in the materials handling system, either haulage or hoisting, where bulk material is transferred between conveyances. 

Plant expansion shall be carried out with more attention to safety since some of the existing systems may get overloaded such as conveyors for materials, refrigeration plants, electrical main bus bars, cables, incoming transformer, pressure vessels, heat exchangers, condensers, effluent treatment plants, and hoists even when operated carefully—because they may be already operating near their maximum capacity— and this can create dangerous situations. 

Material and utilities requirements for new products—will they overload existing system Can staggering of their running time be done to distribute the load more uniformly on motor control centres, electrical cables, hoists, DG sets, belt conveyors. Reactors, and cooling systems—if there are some common ingredients for old and new products ... 

Reduce movement of materials to and fro, or up and down while designing feed systems by hoists or EOT cranes to reactors and process vessels. 

Auxiliary systems which exist in the HCF include material handling equipment (cranes hoists, transporters, etc.), low pressure nitrogen, compressed air, hydraulic systems, process waste water collection system, rainwater collection drains, communications systems, and oxygen monitors. Additionally, HCF activities are supported by operations in B6595, B6596, and B6597. 

AECOM Australia was awarded the task of completing the installation design of the structures and facilities to allow the hoist to be integrated into the GFN materials handling system and meet the site-specific design requirements. Several of these are described in the following text. 

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