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News

Vertical milling system for high quality powders combines low energy consumption with compact size

International Innovative Technologies : 12 April, 2011  (New Product)
New technology for grinding bulk raw materials into fine powders has the potential to bring significant cost and production benefits.
International Innovative Technologies (IIT) has developed a patented new milling technology for fine grinding minerals and other hard materials.

The new vertical milling system combines low energy consumption with a compact size to provide a highly efficient and versatile grinding system for a wide range of minerals processing applications.

Importantly‚ the low energy performance of the new mill and the potential to convert what might currently be regarded as waste material into a commercial product also gives the technology significant ‘green’ credentials. The compact size‚ ease of installation and the opportunity to use the mill for localised milling solutions add to the system’s environmental advantages.

The new m-series is suitable for the milling of a wide range of natural raw materials and other industrial products including metal oxides‚ bauxite‚ calcium carbonate and limestone products‚ silicon carbide‚ coal‚ fly ash‚ blast furnace slag‚ nickel slag and steel slag. The technology also has applications in glass‚ polymers and plastics sectors.

Compact and powerful‚ the centrifugal grinding mechanism of the m-series is extremely efficient with the vertical material flow path and special roller assembly ensuring that the force produced is translated into maximum particle grinding power.

As a result‚ the new technology is capable of grinding hard materials of up to 9.5 on the Mohs scale with 90% passing 45 microns and below. Extremely low electrical energy input is required relative to particle size and volume of powder output‚ with specific energy consumption typically between 5kWh/T and 10kWh/T.

Typically‚ a standard 600mm barrel operating at 300 rpm produces a very fine powder output at up to 5 tonnes per hour and multi-mill configurations are available to meet capacities of up to 50 tonnes per hour.

The self- contained grinding modules comprise very hard rollers linked to swinging arms and an innovative centrifugal mechanism which develops very high grinding forces.

Multi stage grinding is achieved through the incorporation of a number of grinding modules in series with particle size controlled by the number of modules and rotational speed.

Fully integrated electronic control and process monitoring systems for the new technology have been developed in collaboration with Siemens Industry Sector in the UK and Siemens motors, drives and control and instrumentation systems are an integral part of the new milling and processing systems.
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