{"id":7795,"date":"2023-09-07T18:07:00","date_gmt":"2023-09-07T16:07:00","guid":{"rendered":"https:\/\/www.coralynne.co.za\/blog\/?p=7795"},"modified":"2023-10-11T18:21:05","modified_gmt":"2023-10-11T16:21:05","slug":"keeping-mill-circuit-pumps-running-the-key-to-efficient-operations","status":"publish","type":"post","link":"https:\/\/www.coralynne.co.za\/blog\/keeping-mill-circuit-pumps-running-the-key-to-efficient-operations\/","title":{"rendered":"KEEPING MILL CIRCUIT PUMPS RUNNING: THE KEY TO EFFICIENT OPERATIONS"},"content":{"rendered":"\n

The requisite levels of support are critical to ensure optimal performance of a mill circuit, as is the correct selection of the mill circuit pump. Attention to both these aspects will facilitate cost efficient and optimum operation of the circuit; however, cautions Marnus Koorts, General Manager Pump Products at Weir Minerals Africa, each is as important as the other. <\/p>\n\n\n\n

Weir Minerals Africa has a focus on delivering reliable solutions to customers that will provide the required performance while facilitating the lowest total cost of ownership. This, Koorts says, has seen the Warman\u00ae mill circuit pump become the preferred choice across numerous plants in Africa.<\/p>\n\n\n\n

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Commenting further, Koorts says that the requisite support level often requires significant investment by the pump Original Equipment Manufacturer and means having the correct parts readily available on or close to a customer site. This should be backed by the technical competency required to keep the pump running, he says.  <\/p>\n\n\n\n

\u201cWhat is essential to understand is that a mill circuit pump is not an off-the-shelf solution. Mill circuit pumps are engineered to provide optimum performance under the arduous operating conditions on individual customer sites and need to be configured to achieve the requisite hours between scheduled maintenance shutdowns,\u201d he says. <\/p>\n\n\n\n

\u201cClose collaboration with customers and a comprehensive understanding of the plant’s operating parameters are crucial to ensure the solution provided will meet the operational requirements,\u201d he says. <\/p>\n\n\n\n

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One of the primary considerations when it comes to mill circuit pumps is the ability to handle large particles and high flow rates. Wear and tear in these pumps are directly proportional to the size of particles passing through, necessitating specific construction materials and design features. <\/p>\n\n\n\n

Koorts says a major differentiator is that the Warman\u00ae mill circuit pumps are physically larger for the same flow rate, reducing wear by operating at lower speeds. This strategy has paid major dividends for customers and is one of the reasons for the popularity of the Warman\u00ae brand in Africa. <\/p>\n\n\n\n

\u201cAnother crucial aspect is the engineering of the hydraulic chamber, which enhances wear resistance and increases efficiency. This is achieved through the unique design of the vanelet which significantly minimises unwanted turbulence and reduces both wear and energy consumption,\u201d he explains. The reduced energy consumption not only contributes to the bottom line but also ensures a relatively short payback period for the capital investment.<\/p>\n\n\n\n

\u201cMaterial selection for mill pumps often sparks debate, but experience in the field has shown the undeniable benefits of rubber liners,\u201d Koorts says. \u201cRubber liners extend wear life, handle impact associated with large particles, and are more cost effective and easier to handle.\u201d Recognising the advantages, Weir Minerals has made substantial investments in rubber production facilities to manufacture these liners for customers. <\/p>\n\n\n\n

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However, when applications demand it, a wide range of metal options are also available. Koorts says good examples would be Hyperchrome\u00ae A61 alloy which is particularly good for fine particle wear that\u2019s often seen between the impeller and the throat bush, and Ultrachrome\u00ae A05 alloy which would be used for the shell as it works well with general coarse particle abrasion. <\/p>\n\n\n\n

\u201cIf the wear characteristics are higher than anticipated in an application, this is where the interchangeability of components plays an important role. Most of our designs allow for interchangeability between metal and rubber components based on specific wear characteristics.\u201d <\/p>\n\n\n\n

Koorts also points out that over time, changes in the slurry composition or ore grade processed by a plant can affect pump efficiency and increase wear. He says that Warman\u00ae mill circuit pumps offer standard and low flow liner capabilities, enabling operators to adjust the flow rate as needed without compromising the original installation.<\/p>\n\n\n\n

Retrofit optimisations are increasingly common as mineral processing plants evolve and seek to reduce their total cost of ownership. Weir Minerals Africa has made substantial investments in an engineering team capable of seamlessly integrating the Warman\u00ae mill circuit pumps into existing installations, and they work closely with engineering, procurement, construction management (EPCM) contractor, and project houses ensuring all stakeholders can make an informed decision regarding pump selection and configuration.<\/p>\n\n\n\n

With over 20 branches across Africa and the Middle East, Weir Minerals Africa ensures local technical support is readily available to customers. This proximity allows the Weir Minerals Africa teams to gain a deep understanding of each customer’s operation and provide comprehensive support to ensure uninterrupted pump operation. To facilitate easy access to parts, the company recommends a strategic parts list and encourages customers to keep these components on-site. Critical parts are also stocked at the nearest Weir Minerals Africa branch.<\/p>\n","protected":false},"excerpt":{"rendered":"

Weir Minerals Africa emphasises the critical importance of support levels and pump selection for mill circuit operations. These factors are essential for achieving optimal performance, cost efficiency, and the lowest total cost of ownership. As a result, the Warman\u00ae mill circuit pump has emerged as the preferred choice for numerous plants across Africa.<\/p>\n","protected":false},"author":2,"featured_media":7801,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[41],"class_list":["post-7795","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-client-focus","tag-weir"],"_links":{"self":[{"href":"https:\/\/www.coralynne.co.za\/blog\/wp-json\/wp\/v2\/posts\/7795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.coralynne.co.za\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.coralynne.co.za\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.coralynne.co.za\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.coralynne.co.za\/blog\/wp-json\/wp\/v2\/comments?post=7795"}],"version-history":[{"count":0,"href":"https:\/\/www.coralynne.co.za\/blog\/wp-json\/wp\/v2\/posts\/7795\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.coralynne.co.za\/blog\/wp-json\/wp\/v2\/media\/7801"}],"wp:attachment":[{"href":"https:\/\/www.coralynne.co.za\/blog\/wp-json\/wp\/v2\/media?parent=7795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.coralynne.co.za\/blog\/wp-json\/wp\/v2\/categories?post=7795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.coralynne.co.za\/blog\/wp-json\/wp\/v2\/tags?post=7795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}