Kurrajong Pastoral Company have engaged Dowdens Pumping & Water Treatment [Rockhampton branch] to design, install and commission a large solar powered stock watering system on one of their rural properties located near Alpha, QLD.
The solar powered stock watering system is required to transfer onsite bore water to existing water storage tanks. These water tanks are used by Kurrajong Pastoral Co. primarily to water the 1,000 head of cattle onsite.
Kurrajong Pastoral Co. specified each head of cattle was to be allocated a minimum of 10gal per day (approx. 45L/day), meaning the pumping system needed to deliver over 10,000gal per day (45,461L).
Water is pumped from the 5" onsite bore (pump set at 35m) with 75m total head into 3 storage tanks via poly line pipe.
The Kurrajong Pastoral Co. solar pumping system was designed to keep overall operating costs down whilst still delivering a regular supply of water to cattle with negligible ongoing service or labour required. Dowdens Pumping & Water Treatment [Rockhampton] designed the system to be more cost effective than running additional wiring and connecting any onsite pumps to mains power.
The new solar pump replaces a B Head Mono Column and Shaft pump - originally powered by an onsite diesel engine. Dowdens solar powered system has thereby significantly lowered the environmental footprint of the entire pumping system.
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Dowdens Pumping & Water Treatment would like to congratulate local Mackay resident Sam Sheehan who won a prize in the 46th Lucky Buys Rewards Major Prize Draw.
Dowdens Pumping & Water Treatment together with 15 other local Mackay retailers operate an in-store loyalty program, 'Lucky Buys Rewards' which is provided and managed by The Loyalty Group, operating loyalty programs in Australia since 1988.
Sam won this fantastic prize simply by shopping at Dowdens and presenting his Lucky Buys Rewards card at the sales counter. Every purchase made with a Dowdens Rewards card automatically enters the shopper into the regular Major Prize Draw for a chance to win cars, holidays and other major prizes.
Dowdens Rewards cards can also be used when shopping at any of the other 15 local participating retailers for even more chances to win. The Dowdens loyalty program encourages shoppers to support locally owned businesses, which in turn helps build strong communities and create more jobs locally.
The Lucky Buys Rewards program gives local businesses a strong competitive advantage, required when competing with larger shopping chains, online shopping and dealing with the Mackay region's current economic downturn.
Anglo American have engaged Dowdens Pumping & Water Treatment's [Mackay] Engineering Department & Fabrication Workshop to rectify an issue with a new valve station installation that was experiencing water hammer, resulting in the longwall mining operation being suspended at their Grasstree Coal Mine, located at Middlemount in the centre of the Bowen Basin, QLD.
Underground mines require water management systems in place to manage working water that is utilised for production, dust suppression, hydraulic jacks etc. Mines employ various methods of underground water transportation systems including Longwall Boost Pump Stations & filtered water from the mine surface networks. The filtered water system is an important piece of infrastructure for underground coal mine providing clean water for dust suppression & feeding the powerful hydraulic piston pumps that are used to jack up the roof in the longwall mining process.
When water is fed into an underground mine it is received at a very high pressures due to the vertical drop to the mine workings. This pressure needs to be reduced & controlled to levels that can be safely managed in the underground operations. Dowdens Pumping & Water Treatment has provided Grasstree Coal Mine with several Pressure Reducing Valve Stations over the life of the mine, enabling reliable & trouble free operation.
Responding to the urgent help request from Grasstree Mine, Dowdens immediately travelled to site to undertake system 'fault finding' & begin planning the delivery of a timely & cost effective solution to the problem.
As a direct result of Dowdens Pumping & Water Treatment's long standing & responsive working relationship with Anglo American's Grasstree underground coal mine, the Dowdens Engineering Department was called on to assist with a new valve station installation that was experiencing water hammer resulting in the longwall mining operation being suspended. Dowdens Engineers attended the mine site & listened/observed the problems that were being experienced such as pressure surges & water hammer in the feed pipes leading to the longwall operation.
Dowdens Engineering Dept. designed & developed a Pressure Setting Spool sized specifically to meet the specific duty required. The spool was custom designed using engineered fluid mechanics to reduce the pressure before it entered the valve station, taking part of the load off the station. Pipe supports were also engineered to provide a secure installation of the station.
The timeline to find the solution & manufacture the components was very tight. Engineering - Concept Design - Drawings & In-House Fabrication of the unique Pressure Setting Spool Piece [with roof bolt anchoring points] were completed & delivered to Grasstree Mine within 5 days from the first site meeting! No other pumping / manufacturing / engineering firm in Queensland was able to deliver such an all-encompassing product solution in the above mentioned time-frame.
Dowdens design philosophy for this project was: Fast Turnaround - Cost Effectiveness - Ease of Installation - Simple Plant Operation - Plant Reliability & Reduced Maintenance.
The unique system required at Grasstree Coal Mine needed to address the following issues:
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Dowdens Pumping & Water Treatment are proud to announce securing Australia-wide exclusivity of the MIRACELL Rotating Biological Contactors (RBCs) Sewage Treatment Systems. MIRACELL RBCs are the systems are most preferred globally by customers who clearly understand the economic value in purchasing an expertly designed and professionally built Sewage Treatment System!
MIRACELL RBC Sewage Treatment Systems are fully automatic, modular designed Rotating Biological Contactor (RBC) treatment systems specifically designed for sewage treatment applications in capacities ranging from 50 to 20,000 equivalent people (treatment of between 10m3 up to 4000m3 / day). Representing the ultimate in Sewage Treatment Systems, a MIRACELL RBC consumes as little as one fifth of the electricity and requires as little as one third of the space of its competitors based on the activated sludge technology.
Having exclusive rights to MIRACELL RBCs has increased Dowdens capacity to design, supply, install and service large scale Sewage Treatment Systems suitable for use by municipalities, caravan parks, mining camps and a wide range of other commercial / industrial sites where onsite sewage treatment is needed.
Dowdens Pumping & Water Treatment employs an experienced team of WTP and STP Project Specialists comprising of Mechanical and Process Engineers, Project Managers, Draftsmen with 3D Autocad skills and qualified installation and service crews, together with our in-house workshop facilities for the fabrication of steel and stainless steel skids and bases, Dowdens has little to nil reliance on outside contractors when delivering complex Water and Sewage Treatment systems - in essence we are a 'one-stop pumping, water and sewage treatment shop'.
Examples of Dowdens Water and Sewage Treatment projects:
Dowdens Pumping & Water Treatment have successfully designed, installed and commissioned a specialised Ultraviolet filtration system for the Queensland Health Mackay Renal Unit.
Project Requirements: The original system operated by pumping town water to individual filtering stations where the water would pass through a 5 micron, 1 micron and carbon filter on its way to the dialysis machine (which has an internal reverse osmosis filter).
The issue Dowdens faced was the original system filters were only lasting between 5 - 15 hours, and by this stage they were black and needed to be replaced!
After reviewing detailed water test results, Dowdens designed a compact, reliable system where the existing pump was upgraded, a water softening unit was added to remove iron, calcium and manganese. Large cartridge filters were also installed to pre-filter the water before it entered a dedicated UV steriliser.
Using the above system the Mackay Renal Unit now only needs to replace the systems filters every 7 to 10 days - saving thousands of dollars in ongoing system maintenance costs!
Wilmar Sugar Australia Limited employed Dowdens Pumping & Water Treatment [Mackay] to deliver a broad acre irrigation system at their Gibson Creek sugarcane farm. Wilmar Sugar Australia Limited is Australia's largest raw sugar producer and one of the top 10 producers in the world.
The Gibson Creek sugarcane farm has a total area of 2,000ha, with works completed by Dowdens to date delivering irrigation to over 750ha of sugarcane - this project is still ongoing with the aim to irrigate the full 2,000ha upon completion. The broad acre irrigation system was designed, sourced, installed and commissioned by the Dowdens Pumping & Water Treatment Agricultural Sales Team, which has over 125 years combined agriculture irrigation experience.
The system is required to pump water stored in Wilmar's onsite dam (which when completed will hold a total of 2,000ML) to various irrigation devices watering 2,000ha of sugarcane.CLICK IMAGES TO VIEW FULL PROJECT GALLERY
To date the project has seen the team at Dowdens construct, install and commission six Valley Center Pivot Irrigators, with spans ranging from 520m down to 410m, and three hard hose poly line traveling irrigators.
Water for the irrigation system (sourced from Wilmar's 2,000ML onsite dam) required Dowdens to lay an extensive network of poly and PVC mains pipework ranging from 500mm to 150mm in diameter. In total over 12kms of mains pipe has been laid so far.
The entire system is gravity fed from the large onsite dam with a 6-cylinder John Deere diesel engine centrifugal pump feeding the six pivots, and three IVECO-Caprari multistage diesel booster pumps [pictured below] kicking in to raise mains pressure when water is required at the three hard hose poly line travelling irrigators.
The entire project was overseen and managed by Glenn Agnew from the Dowdens Pumping & Water Treatment [Mackay] Agricultural Sales Team.
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