WORLD PROSPECTS
The unique feature of the HMQ is the use of iMPD, the intelligent ABEL membrane pulsation damper. Pulsation dampers minimise pulsations in the system‘ s pipelines. Conventional membrane pulsation dampers must be set( pre-stressed) to a
FLSmidth SAGwise™ to revolutionise mill liner protection
FLSmidth has just launched a new SAG mill liner protection solution called SAGwise™ total process control, with an estimate of less than six months ROI. It has been shown in tests that it can reduce damage to the liners by over 40 %. FLSmidth told IM:“ Extending the life and availability of mill liners is crucial. Weighing up to 4 t a piece, mill liners require a lot of effort to replace when they are worn out, and SAG mill downtime can be around $ 130,000 / h, while lead times can span months. Overall it can cost well over $ 1 million dollars for a liner package.”
As stated, test results of the new product show reduced damage to the liners of 40 % and an ROI of six months( without factoring in reduced unscheduled maintenance). Added this are reduced energy consumption of 6 % – significant considering that mills use the by far largest amount of power required for minerals processing. The new solution also saw a production increase of 6 % and reduced process variability up to 30 %. The SAGwise™ total process control solution employs state of the art process control technologies to reduce critical impacts to the desired targets, stabilising and then optimising the operation of the SAG mill. Multiple process
Volvo Construction Equipment( Volvo CE) in a long expected announcement says that it will enter the rigid hauler market with its own Volvo brand of rigid haulers in the second quarter of 2018. The development of the new four-model range has relied heavily on the longstanding rigid hauler expertise of Volvo CE’ s subsidiary Terex Trucks, combined with the technological strength of the Volvo Group. The range, which will initially be launched in less regulated markets, consists of the 45-ton R45D, 60-ton R60D, 72-ton R70D and the flagship 100-ton R100E.
“ The E-Series R100E is a completely new Volvo CE 100-ton( 95-t) rigid hauler that combines a wealth of market and customer knowledge with proven components, new technologies and a striking new design – all providing a cost-effective and productive solution to fulfil the needs of today’ s mining and quarrying customers.”
Based on the existing and well-proven Terex Trucks TR-Series, development of the D-Series R45D, R60D and R70D Volvo rigid haulers follows an in-depth engineering review, ensuring that the machines meet the standards expected from Volvo products in their target markets and segments. Improvements include greater visibility and safety systems, along with Volvo technical support and branding. As a result of the launch of specific pressure range. Each time the operating pressure is changed, such as when the volumetric flow is changed, the pulsation damper‘ s pre-stress must be changed. However, the iMPD automatically adapts to changing operating pressures, providing
control technologies, such as model predictive control and fuzzy logic are embedded into the solution, modelling both the process and the human operators.
The system is based on acoustic sensors and proprietary process control software to predict and adjust the SAG mill operation according to impacts on the mill and other main process variables. King Becerra, FLSmidth Global
Product Line Manager – Process
Optimisation told IM:“ There are eight audio sensors on a bidirectional mill, four on each side. These have embedded microphones that listen for so-called critical steel on steel impacts between balls and liners rather than between ore and liners. Today, plant operators rely on the personnel close to the SAG mill listening to the mill load and undesirable steelon-steel impacts to manually adjust the SAG mill operation, reducing undesirable impacts, and run the mill smoothly. But the FLSmidth SAGwise™ system takes this digital audio data
Volvo CE enters rigid hauler market
the Volvo-branded rigid haulers, production of Terex Trucks rigid haulers will, over time, cease.
“ Our purchase of Terex Trucks in 2014 was a strategic decision that allowed Volvo to offer customers a rigid hauler option,” says Thomas Bitter, Senior Vice President of the Marketing and Product Portfolio( MaPP) function at Volvo CE.“ Since then, we’ ve been working to design a completely new rigid hauler that builds on Terex Trucks’ 84-year heritage, while also incorporating Volvo CE’ s industry-leading technology and core values of quality, safety and environmental care. Today we move to the next stage, and the new Volvo machines, especially the E-Series R100E, are the outcome of this work. We’ re confident that they will impress customers working in the mining and quarrying segments.”
The all-new flagship R100E has been designed to meet customer demands for a rigid hauler that delivers high performance and productivity, low total cost of ownership, easy serviceability and good operator comfort. With its high capacity and hauling speeds, new V-shaped body, efficient hydraulics, intelligent monitoring systems and operator environment, the R100E will help customers move more material in less time.
“ Terex Trucks’ rigid haulers are known for performing well in tough conditions, while also low residual pulsation over the entire pressure range. The iMPD automatically adapts to the actual operating conditions through the use of a piston compressor. www. abelpumps. com
and uses techniques such as model predictive control and fuzzy logic rules to assess the mill process parameters.”
“ Within seconds it has analysed the audio frequencies as well as taking on board power usage, mill weight and bearing pressure. It can then automatically take corrective action if needed and adjust parameters such as the mill ore feed rate, mill speed or water usage. Whereas an operator might make adjustments every few minutes, SAGwise™ can make more frequent( every 20 seconds or less) and less drastic adjustments.” The reduced damage improves mill availability and reduces downtime.“ This can translate to literally multiple millions more tonnes of ore milled,” says FLSmidth.
Jack Meegan, FLSmidth Global Product Line Manager – Mill Liners and Wear Parts told IM:“ We took technology that we already have and mated them together to make a solution. We can say to the customer, of course we want to sell you mill liners, but at the same time we want to make sure you are getting more value from your liners as well as your media. With many mines using $ 10 million or more of liners per year and three or four times this cost in terms of grinding media, the savings can be huge.” www. flsmidth. com
being easy to maintain and delivering low cost of ownership,” says Paul Douglas, Volvo CE’ s Vice President of Rigid Haulers and Terex Trucks.“ Our proven design has provided a strong DNA on which to help develop Volvo CE’ s innovative entry into this product line. The new E-Series R100E is a completely new machine that delivers stability, a long service life, high profitability, durability and comfort. And moreover, it’ s quick and simple to operate and maintain.”
The new Volvo-branded rigid haulers will be manufactured at the rebranded Volvo Motherwell production facility in Scotland and sold exclusively through the Volvo dealer network.“ This announcement has no bearing on Volvo CE’ s Terex Trucks-branded articulated hauler range. Terex Trucks-branded articulated haulers will continue to be designed, built and developed at the Motherwell facility, and distributed using the pre-existing Terex Trucks independent dealer network.” www. volvoce. com
6 International Mining | FEBRUARY 2018