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A Case Study for Mineral Recovery: Port Talbot


map-tata.pngLOCATION: TATA, PORT TALBOT

SUMMARY

Within the steel industry the costly disposal of millscale, a waste material created when rolling steel, prompted the requirement for an economically effective solution. The Hydro Iron Master was able to separate high quality iron from the millscale, enabling it to be fed back into the steel production process.

BACKGROUND

Millscale contains a high percentage of Iron, however due to oil contamination the iron cannot be recovered / re-used therefore rendering it a waste product. Due to the large volumes of millscale generated per day the requirement to safely dispose of the waste formed an increasingly costly problem with landfill being the adopted method of disposal.

HYDRO'S SOLUTION

Hydro Industries developed a treatment method which was installed in the Port Talbot steel works in April 2014. The key to iron removal and the effectiveness of the treatment process was to mix the millscale with water. The Hydro Iron Master then separated the oil from the water, oil was floated off and the iron removed as sludge. The iron then undergoes a drying process prior to its re-use within the steel making process. The waste oil is also recoverable with the water being recycled through the system to maximise efficiency. For both projects in Port Talbot and Jamshedpur steel works a similar system was engineered to suit the requirements and volume of waste to be processed. The construction of the systems on both sites was set to ensure the systems were placed in optimum areas within the steel works to provide ease of transport of recovered material back to the steel making processing areas.tata-6-column-image-table.png

2015 TONNAGES

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With an average iron recovery rate of 339 tonnes per day, the Hydro Iron Master is a cost efficient method of transforming a once waste product into a useable resource. The value in this method is significant and Hydro Industries have been called upon to replicate this technology in the Jamshedpur Steel works in India.

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