Metso’s large mill discharge offering began comparatively later than other companies, with the smallest size launched only in 2015. As a result of this more modern development, many of the sustainability benefits that competitors have recently began retrofitting on their pumps have already been incorporated in the MD Series Pumps from their beginning stages.
“Water consumption, energy, material use, logistics, inventory, all of these play a role in the total sustainability picture,” says Diwakar Aduri, Global Product Manager, Mill Discharge Pumps at Metso. “Our idea was to minimize those impacts at every leg of the journey in the life cycle of the product.”
Metso has ambitious sustainability targets that are validated by the Science Based targets initiative and come under our Planet Positive approach. The design and operation of slurry pumps play a critical role in the mining process and deserves considerable attention in regards to increasing sustainability within operations.
Reducing water consumption with EnviroSet™
The MD Series pumps are designed to minimize water consumption, which is becoming a scarce resource in many mining regions. With a range of features that aim to decrease the environmental impact while improving efficiency and productivity, MD pumps can reduce water consumption by up to 50% in specific applications.
“Water has become more of a luxury these days for mine sites, so that was a critical factor we took into play when we designed the MD pumps,” says Diwakar. “Soon enough, the water will be mostly sea water, which is not fresh water. This means there will be a lot of cleaning of the processed water involved in order to safety flush your seals. Minimizing the requirement of fresh water has a significant sustainability impact.”
Metso’s MD series pumps come with the EnviroSet™ gland as a standard feature. This sealing solution is made up of high-quality packing and a unique throat bushing that controls the internal stuffing box environment, reducing gland water consumption by up to 50%. The EnviroSet™ seal has been in place on these pumps for seven years and has proven to be an effective solution for maximizing water consumption efficiency.
The latest MD Series innovations, such as the recently released MDM900, includes using a low-flow shaft seal to minimize the pump’s freshwater requirement during operation. By implementing sustainable elements in slurry pumps, Metso is in the unique position to ensure improved process efficiency, increased pump uptime and reduced energy and water consumption.