Changing trends: the alternative to the stacker/reclaimer system
Typical operations in either developing a green-field site or upgrading a current stockyard operation would use a stacker/ reclaimer system for all their needs in terms of stockpiling and reclaiming of the bulk material. There are many manufacturers of stacker/reclaiming systems worldwide, with varying associated capital costs depending on the customer’s requirements. Also, other substantial costs associated with this type of installation include civil requirements, planning permission, government legislation and so on, which further increases the capital expenditure and time frame of the project.
The Telestack mobile systems can offer a cost-efficient alternative to stacker/reclaimer systems. Telestack equipment is designed for operators handling up to 5,000,000 tonnes per year with a single system, while still maintaining the required production capacities.
For those upgrading their current system from an older stacker/reclaimer system to a new design, the robust design of the equipment ensures that the operator can maintain their current tonnage per annum while limiting their capital expenditure. For those developing new greenfield sites, the Telestack equipment is perfect for the initial start-up phase of the project. The lower capital costs and no civil requirements or limited planning permission are the main advantages in comparison to fixed stacker/reclaiming systems. The equipment allows the operator to begin phase one of the stockyard very quickly and easily, with equipment lead times as short as 12 weeks from order. All Telestack units can be packed into 40-foot containers for shipping globally and fully built on site within one week, with limited planning permission, civil requirements, and so on.
Range of mobile equipment for stockpiling, reclaiming, truck unloading and linking for an efficient stockyard system
The mobile equipment allows for a range of stockpiling requirements depending on the customer needs and height restrictions within the stockyard. The radial telescopic conveyors are heavy duty stockpiling conveyors up to 58 meters length (190 feet), which allow for a maximum stockpile height of 20 meters and up to 200,000+ tonnes (based on 1.6t/m3 density).
The luffing (up/down) facility of the units allows the operator to use the units even in areas with restricted stockpile height. Also, the automatic PLC stockpiling system reduces the labor required to operate the equipment, while reducing the degradation, segregation, contamination and compaction of the material. The robust heavy-duty design stockpiles up to 2500tph with the ability to handle a complete range of materials from coal or pet coke to iron ore, which is ideal for multi-material stockyards. The mobility of the units are key to ensure production rates are maintained when changing from one stockpile to another, as Telestack’s integrated tracked dolly units (see Figure 2) ensure a highly mobile independent unit on harsh ground conditions within the stockyard. As seen in Figure 3, the radial telescopic can be fed directly from the mobile link, reclaim and truck unloading conveyors to stockpile in the yard. The mobility allows the units to move back and around the stockyard to maximize the space and efficiency in the yard (see Figure 3) as required, while limiting downtime in the stockpiling process.
Reclaiming: Utilizing the Telestack equipment for your reclaim system
The Telestack equipment is ideally suited for either the stockpiling process or the reclaiming process, the multifunctionality of the equipment limits the capital expenditure, while still maintaining the production capacities.
The mobility of the units allows the changeover from stockpiling mode to reclaiming mode very easily. When the stockpiles are built, the mobile reclaim hopper is situated next to the stockpile with multiple link conveyors utilized to limit the haulage distance of the wheel loaders. These link conveyors can then feed directly onto the overland conveyor system. The mobile reclaim hopper and truck unloader can both be used to feed directly on to the overland conveyor system if required, (see Figure 5), which eliminates the double of the material.
The mobile truck unloader can also be fed directly from trucks in the stockyard to feed the overland conveyor system, again to increase production capacities during the reclaiming process. The mobile reclaim hopper, truck unloaders and link conveyors already used in the stockpiling process give the operator the complete package for an efficient stockyard system. The customized nature of the Telestack units ensures they meet the needs of any application, with capacities up to 2500tph for both stockpiling and reclaiming. The overall benefit in the reclaiming process is the limitation of haulage distance of the wheels loaders and trucks to reduce fuel, labor and dust and emissions.
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