Design Drafting

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 ensure the CHPP reagent tank farm lighting protection systems complied with Australian Standards, Moranbah North requested Orana Engineering to undertake a review and design an upgrade of the lightning protection systems for the tank farm area. With the area encompassing fuel storage tanks, it was classified as having structures with "explosive or highly flammable contents" and was therefore required to comply with AS1768 : 2008 Lightning Protection. Orana Engineering’s audit of the installation and its lightning protection systems confirmed that an upgrade of the facility was needed to comply with current lightning protection standards. Using its team of detailed draftsmen Orana Engineering created a set of drawings detailing the work required to comply with AS1768 : 2008 Lightning Protection.

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, is a significant miner and exporter of silver and lead concentrate. Orana Engineering was engaged to provide workshop fabrication drawings for a replacement cover to address corrosion issues around flanges and access openings on the existing SAG mill trommel sump cover. Following a site visit to obtain measurements, photos, drawings and documentation, the Orana Engineering design drafting team created a detailed 3D model of the existing structure incorporating new components to produce a set of detailed shop fabrication drawings while also revising multiple existing drawings. These drawings were reissued for construction after receiving client approval. The new cover sections and access panels improved the safety of trommel operation while also reducing inspection and maintenance time.

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.

Melbourne Bio Diesel’s James Cook University research facility required an elevated level area for installation of fresh sea water storage tanks. Orana Engineering was requested to design a solution that increased efficiency with tank drainage and improved safety around the tanks. A site visit was performed to gather measurements of the nominated tank farm area. This included identifying trees requiring removal and determining required tank heights and current ground levels. From the information gathered Orana Engineering used AutoCAD to model ground levels and the fill required to lift tanks to a suitable level for gravity drainage. The design incorporated a conical base on each tank for drainage and the introduction of buried control valves accessible via covered pits.

Management at Carpentaria Gold’s Ravenswood Operation enlisted Orana Engineering to design a fall arrest system that could be easily removed and repositioned above multiple leach tanks, allowing for safe removal and servicing of tank agitators. From a site visit, Orana Engineering identified the need for an arrangement that could be easily disassembled and relocated to each leach tank. The design was challenging due to the varying nature of access structure members above tanks. Orana Engineering designers proposed an assembly utilising a common set of supporting columns with struts of varying lengths depending on the work location. A full set of shop fabrication and assembly drawings were issued with the final design providing safety for personnel working above open tanks.

Carborough Downs Coal Mine is an underground operation utilising conveyors to transport raw material to the surface for processing. As operations progress new trunk conveyor extensions are required. Orana Engineering was engaged to assist with the process of extending an underground trunk conveyor. This involved using survey data of the conveyor heading and designing a suitable belt profile, utilising minimum conveyor curves identified in the conveyor power and tension analysis. Orana Engineering produced a set of drawings detailing the belt profile, conveyor structures and locations for roof bolts that the structures would be suspended from. These drawings enabled site engineers to complete the conveyor structure installation and conveyor extension with minimal risk of error and conveyor tracking problems.

The Glencore Port Operations in Townsville operate an export facility for minerals concentrate and refined copper within the Port of Townsville precinct. The concentrate in-loading rotaside tippler was identified as being at end of life and a feasibility study was commissioned to review a like-for-like replacement option for refurbishment of the tippler. To facilitate feasibility-level costing, Orana Engineering was asked to provide electrical engineering and mechanical engineering assistance with provision of a concept design for the proposed refurbishment and upgrade. By working closely with Glencore, and other consultants engaged on the project, Orana Engineering was able to contribute as part of a collective "owners engineering team" to the feasibility assessment of a significant engineering project in the Townsville Region.