In recent years, JOEST Australia has increased its footprint within the Australian battery metals industry. JOEST Australia has delivered a package of 20 new machines comprising 18 different sizes and configurations, from dry scalping and sizing through to wet screening applications, to process the spodumene ore used in the conversion process to yield lithium hydroxide for the expanding battery industry. Due to the project‘s specific requirements, JOEST Australia personnel worked in close collaboration with the customer’s process design team to optimise the feeding and screening equipment used in this latest landmark greenfield project.
Recently, JOEST Australia has successfully supplied and commissioned its largest single package of machines, under contract to a major iron ore supplier. This contract comprised seven double deck multi-slope screens and vibrating feeders. The customer’s iron ore processing facility is purported to be one of the most technically advanced iron ore mines in operation. The collaboration of JOEST Australia personnel with the customer’s Engineering Procurement Contract Managers (EPCM) enabled the condition monitoring for the equipment package to be integrated into the plant process control.
To dose dry ice pellets from their transportation boxes into special isolation containers, JOEST delivered a system solution to the global specialist ASCO Carbon Dioxide this year. Realistic tests at the JOEST Test Center gave insight to the handling of dry ice at extremely low temperatures – at standard pressure -78°C – and the effects it has on the equipment. This data was analyzed by product specialists at JOEST and implemented in the details of the engineering design. The client’s demand was to dose the dry ice pellets with high precision, but without destroying them. A big challenge was the large difference in temperature between the product and the environment. Varying transportation boxes on the feed end, adjustable batch sizes and intermediate storage of the box volume were additional features demanded for the system solution.
For several years, JOEST has been working on the optimization of thermal treatment plants with regard to energy consumption.The optimization of energy consumption is the main focus in thermal treatment. The JOEST Fluidized Bed Dryer is already equipped with an exhaust air heat exchanger to preheat the process air. In specific cases, the drying systems can be designed with exhaust air recirculation. In this case, the exhaust air is partially returned to the drying system after being cleaned by a filter or cyclone. This reduces the energy consumption by more than 40 %. Such measures were previously not available for the JOEST Fluidized Bed Cooler, as the warm exhaust air cannot be recycled in the cooling process itself.