Drawing Revisions

Orana Engineering was engaged by MMG's Century Mine to design an upgrade within the concentrator for increased flow from a flotation cell to a tailings trough. Orana Engineering conducted a concept investigation of available options to increase the flow rate. Results were presented for a range of design and operating conditions, and a preferred option was selected for detailed design. Orana Engineering design staff created a 3D model of the new pipeline using Autodesk Inventor. The 3D model was used to produce fabrication drawings for pipe supports, new platform and new pipe bridge. Drawings also included isometric pipe spool drawings and revised P&ID drawings.

Orana Engineering was requested by the BMA Projects Department to assist in completing an audit of air, water and wastewater services at BMA Blackwater Mine in Central Queensland. The work was required in order to determine if the addition of new go-line infrastructure would adversely impact the existing mine industrial area services, and if additional infrastructure or infrastructure upgrades were required.

The purpose of the Reagent System Upgrade at Oaky Creek was installation of new reagent storage tanks, discharge / delivery pumping systems and automated flow control distribution manifolds for the delivery of each reagent to the nominated process connections. Orana Engineering performed mechanical, electrical and control systems design, drafting and engineering for the project. The primary deliverables included scope of works, construction drawings, functional specification, BOM, spares lists and equipment / instrument data sheets. Orana Engineering managed the onsite commissioning of the system and provided a system handover to operations for implementation. An Operation & Maintenance Manual and Hazardous Area Dossier were provided on project completion.

The IMT project team at MMG’s Century Zinc operations enlisted the assistance of Orana Engineering to produce a set of fabrication drawings for an existing gear box frame which required replacing. Although the frame itself had been in operation for quite some time, there were no detailed drawings available that could be used for the construction of a replacement unit.

Orana Engineering was engaged by Oaky Creek Coal to assist in design and construction of onsite camp accommodation, including an HV substation for power and potable water supply. Our brief included mechanical, electrical and control systems design, drafting and engineering for the project. Deliverables included scope of works, construction drawings, functional specification, drawing and equipment registers, commissioning and operating spares lists and equipment and instrument data sheets. Orana Engineering provided PLC configuration and commissioning assistance for pump control, acted as Client Representative during construction, managed onsite commissioning of the system, and provided a handover to operations for implementation. Operation & Maintenance Manuals for potable water storage and the HV substation were provided upon completion.

To improve the maintainability of plant electrical systems and personnel safety, Hail Creek Mine employed the drawing revision services of Orana Engineering to redraw electrical power, control and termination diagrams associated with its Dragline 7 into AutoCAD format. Having electrical drawings in CAD (computer aided design) format, is one of the most efficient ways to capture site electrical modifications, installations or as-building changes for ready access by site personnel involved in maintenance and operations. Working closely with site contacts and onsite electricians, Orana Engineering was able to accurately reproduce 247 electrical drawings into AutoCAD for Dragline 7.

To ensure plant maintainability and personnel safety, Dyno Nobel employed Orana Engineering to redraw its low voltage and high voltage single line diagrams, while also confirming their accuracy and functionality. Through the use of client photos, documentation and discussions Orana Engineering was able to accurately redraw 52 low voltage single line diagrams as well as 6 high voltage single line diagrams. During the redraw process Orana Engineering identified that a larger size drawing template was required to ensure critical information was easily readable on a single drawing. An A0 size drawing template was designed to meet Dyno Nobel's drawing standards with the template providing links for the document management system to easily access drawing metadata.

BHP Billiton Cannington Mine, located in North West Queensland is a significant miner and exporter of silver and lead concentrate via the Port of Townsville.   Orana Engineering was engaged by Cannington site maintenance to provide workshop fabrication drawings for a replacement cover to address the issue of corrosion that was present around flanges and access openings on the existing SAG mill trommel sump cover.

To increase productivity and maintain compliance with legislative standards, Glencore Coal employed the services of Orana Engineering to design and manage the electrical aspects of an upgrade to their existing sewage treatment plant. The project was managed on-site by others, with Orana Engineering providing electrical engineering, design, project management and construction / commissioning assistance. Upon completion of installation, Orana Engineering updated all drawings to reflect any changes made, thus providing Glencore Coal with as-built drawings which will make any future maintenance or fault-finding work more efficient and cost effective, as well as providing legislative compliance.

At the completion of Tailings Pumping Upgrades of the Main CHPP and Module 4 CHPP at Oaky Creek Coal, Orana Engineering received As Built drawings from site and was requested to make electronic revisions for upload into the client’s Drawing Management System. Over 80 drawings had received red pen site mark-ups indicating either that the design had been constructed as per the drawings, or highlighting design changes made during the construction phase of the project. Orana Engineering reviewed these mark-ups and formally revised all drawings to As Built status, incorporating the site mark-ups. The final set of drawings was uploaded to the client’s Drawing Management System ensuring site personnel had access to the latest As Built drawings.