Achieve More With Fewer Resources
Producers of materials for the building and primary production industries, face the challenge of processing crude materials with a high level of impurities, which tends to result in the requirement for washing.
This requirement results in significant increases in water usage, power consumption and operating costs. Given the remote locations of most operations in Australia, the required volumes of fresh water for wet processing can be near impossible to achieve.
The innovative Hydro-Clean system represents a technology that offers a cost effective and eco-sensitive way to clean any crude materials and material blends with a grain size distribution of 0 – 120 mm that are contaminated with adhesive clay, silt and other impurities.
Haver Australia Business Development Manager Steffen Silge says, many producers use our Hydro-Clean unit to turn material,which was once dirty and unsellable, into a product of value.
Power requirements for the Hydro-Clean are no greater than 225 kilowatts, based on the largest model.
The machines experience little wear, and have a maintenance friendly design.
The Hydro-Clean is available in four model sizes that produce 20-400 tonnes per hour, depending on the application.
In addition, the machine has a small footprint and its lightweight design when compared to traditional washers makes it a portable solution.
“Water consumption ranges from 100 – 800 l/min, depending on application and model size. This is significantly lower when compared to traditional washers, which could use up to 3000 l/min,” he explains.
The Hydro-Clean is ideal for use in clay-heavy material deposits. The dirty material is fed via the hopper to a vertical washing drum, where high-pressure nozzles mounted at the top rotate and spray the material with high- pressure water up to 160 bar.
“The high-pressure washing action effectively breaks-up agglomerates and cleans the particles of stubborn material,” Silge says. High-pressure streams of water are injected into the pores of the material. This creates a cleaner product that generates better revenue.
“The turbulence in the drum creates additional scrubbing and abrasive forces that enhance the cleaning process as the material travels down the drum cylinder,” he says.
“The dirty water then flows through the polyurethane screen media, which is installed on the sides of the washing drum.
“The washed material then exits onto a discharge conveyor, which leads to a rinse screen that removes any remaining dirt or clay on the product as it fractionates the material.
“The water is then collected by a waste water pipe, which can send the water to a process water treatment system.”
“We are always looking into ways where we can cut down operating costs, while reducing the environmental impact by recycling the water from a process water treatment system back into the main process,” Silge says.
The main components of a complex washing and classifying plant can be broken down into the washing and classifying unit, the sand recovery unit and the process water treatment unit.
“In order to determine other potential cost savings, systematisation and rating of those units are necessary, considering the water and power consumption for an equivalently sized system.
“Case studies by the Haver Group demonstrate that by optimal selection of those three main components an average reduction of 20 per cent of the power consumption and 30 per cent of the water consumption in regards to the whole process is possible.”
The Hydro-Clean will be on display at the Western Australian Mining and Engineering Exhibition from May 6-8 this year at the Perth Exhibition Centre.
07 3630 0310
Marketing Coordinator Haver Australia
+61 8 6240 6904