Evolute feedwell case study
Evolute feedwell case study
Description
FLSmidth designed and constructed a new Evolute™ feedwell to replace an older design at Carpentaria Gold in Queensland, Australia. The improvements in settling rate and overflow clarity resulted in lower operational expenditure on chemical, electricity, water and maintenance, and improving the efficiency and availability of the gravity concentrator.

Related Resources

Part 4 - Information Systems and Maintenance Work Control
PAUL D TOMLINGSON
Part 4 – Information Systems and Maintenance Work Control - Parts 1, 2 and 3 of this series established that many existing fully-integrated information systems do not provide adequate support of supervisor’s maintenance work control needs. Work order elements are too complex and time consuming for use in the ‘pressure-cooker’ working environment of maintenance supervisors. As a result many supervisors are using ineffective work control procedures that neither control work nor provide field data for required information. In turn, maintenance planners are compelled to prepare ‘official’ work order documents to capture missing data. Many planners are simply ‘work order administrators’ with no time left to plan. When management requires information, these planners may be ‘creating’ bogus information misleading management decision-makers. Since not all work requires planning, a simpler work order element for supervisors can meet their work control needs and also allow them to control all non-planned work. Information system problems are acknowledged by system developers but without being corrected. However, many maintenance organizations have contributed by not developing a well-defined maintenance programs and specifying their information needs. Instead, they have accepted and tried to use the generic information output of overly complex package systems. This ‘log jam’ requires corrective actions. An outstanding PC-based system that satisfies the supervisors work control requirements, returns planners to their full time planning tasks and creates essential information has been identified. The system developer’s introductory presentation was obtained and is attached.
Gold Mill Grinding—Example of a Detailed eLearning Operator Training Module
PERFORMANCE ASSOCIATES INTERNATIONAL
This video provides an example of the content and structure of a Performance Associates International computer-based operator training program. In this video, we focus on the user experience of our eLearning module for operators in a gold mill grinding circuit. This example demonstrates the following program features: • Language toggle controls. • Interactive process flowsheets. • Process descriptions. • Principles of operation. • Workbook feature. • Equipment (SAG mill) 3D animation. • Process variables. • Control loops. • Interlocks. • Alarms. • Interactive plot plan. The grinding circuit is just one of 11 modules included in the complete plant operator training program. Each individual module covers the technical aspects of a specific plant area. The program also contains modules presenting basic introductions to many applicable unit operations and a variety of basic mechanical skills. Additionally, detailed maintenance training modules cover each significant piece of equipment in the plant. A comprehensive training component to develop supervisory skills is included as well. Building, running, and maintaining a new plant is a significant investment. A work-force well-trained from top to bottom is the best way to protect that investment by ensuring a successful start-up and continued operations at peak performance. If you are building a plant and preparing your operators and supervisors for start-up and operation, please stop and ask the question “what components of this training program do I NOT want my operations team to be thoroughly familiar with?”
Performance Associates International Assists Torex Gold With Start-Up Success
PERFORMANCE ASSOCIATES INTERNATIONAL
Far too often, natural resource companies start up new plants without a properly trained operations and maintenance team. The results can be disastrous for both safety and revenue. Obviously the ultimate objective is a plant that operates in a safe and profitable manner. In most cases, the pre-start-up safety training is satisfactory, resulting in few if any accidents during start-up and ongoing operations. However, many plants drop the ball when it comes to properly training operations and maintenance personnel. The payback on a properly executed training program far outweighs the cost. If you are going to budget for high-quality engineering, efficient procurement, and experienced and proven construction management (including commissioning), why leave training open to chance? Performance Associates International (PAI) developed an extensive operations and maintenance training program for Torex Gold’s El Limón-Guajes project in the state of Guerrero, Mexico. In 2015, PAI industry training specialists traveled to the project site to carry out the training for Torex Gold employees in anticipation of plant start-up and gold production. The venture was a “massive success,” according to Nelson Bodnarchuk, Director, Operational Systems. This video tells the story of that success, including generous feedback from the executive officers at Torex recognizing our role in the partnership.
Superior Maintenance Performance: Three Conditions - One Answer
PAUL D TOMLINGSON
I have attached a PowerPoint (PPT) presentation on how to implementing a Mine Maintenance Management Program. But before you study it please understand that superior maintenance performance is built on three conditions: 1 - Maintenance proficiency – Maintenance personnel from manager to worker are proficient in all aspects of management, control and work execution. 2 - Knowledgeable support – All mining departments understand the help needed to make maintenance successful and provide it. 3 - Strategic direction – Mine managers assign mutually–supporting departmental objectives, provide policies to guide interdepartmental actions and verify performance. The one proven answer that meets these conditions is a quality maintenance program. That program must spell out who does what, how, when and why. These guidelines must be applied to the nine essential maintenance management phases: How to (1) Request or (2) Identify work, (3) Classify it to determine the best reaction, then how to (4) Plan, (5) Schedule, (6) Assign, (7) Control and (8) Measure the resulting work and finally, (9) Assess accomplishments against goals such as performance standards and budgets. All personnel in maintenance as well as those who interact with maintenance must be included in the program since every maintenance action requires a supporting or cooperative interdepartmental reaction. Just as the maintenance planner follows specific planning procedures, so must the purchasing agent who orders major component replacements for the job the planner is organizing. After 44 years as a mining maintenance management consulting in all types of mining operations, I can confidently state that the absence of a quality program will preclude meeting these three conditions and frustrate all efforts to achieve superior maintenance performance.
On Demand Webinar: Mud Management with the Multiflo Mudflo Pump
SEMCO Publishing
The webinar, moderated by North American Mining magazine editor Donna Schmidt, will feature Weir Minerals Australia applications engineering business manager AARON SCHOT, who will discuss diverse problems dealing with mud, sludge and spoils in mining and how they can be transported safely and efficiently across sites continuously without impacting machinery – and while minimizing personnel involvement in that process for greater miner safety. Hear more about the Multiflo Mudflo solution, its history, and how the pump can be integral to an advanced sites’ dredging plans. About Aaron Schot:Aaron, business manager for Applications Engineering at Weir Minerals Australia, joined the company as a graduate engineer after completing a Bachelor of Engineering (Mechanical) in 2014 at Queensland University of Technology (QUT). Since then, Aaron has held multiple roles within Weir Minerals working primarily with the Multiflo product, specializing in formulating the engineering design of electric and diesel dewatering pumping solutions for both domestic (Australia) and international customers across the mining, municipal and agriculture industries. During his tenure with Weir Minerals, Aaron has also completed a significant amount of work developing and designing new fuel management systems within the Hydrau-Flo™ brand. About the moderator:Donna Schmidt, editor of North American Miningmagazine and the globally focused Miners News weekly e-newsletter and news editor for The ASIA Miner, has been a part of the trade press community for nearly 18 years and has hosted a number of webinars for mining suppliers and partners on a various topics including digitalization, automation and site efficiency, among others. Part of the editorial staff of SEMCO Publishing, which is also home to titles such as Rock Products, Concrete Products and Cement Products magazines, has directed editorial at both NAM and MinersNews.net since their respective inceptions in 2021.