Dry Grinding

Rounding Unit GyRho

Efficient and Economical Spheroidization

Process Technology for the Rounding of Graphite

The system developed from NETZSCH overcomes all disadvantages of the standard technology and delivers an elegant solution for an efficient, processtechnology optimized graphite rounding. In a first step, the flake graphite is pre-ground to the optimum initial particle size for spheroidization in a classifier mill or fluidized bed jet mill. The actual particle rounding takes place directly downstream in the newly designed NETZSCH GyRho Rounding Unit, which is available in various construction sizes and can be specially designed to suit the necessary output quantity. For larger throughput volumes two (or more) machines can be operated simultaneously and replace a train of 40 machines or more.

The NETZSCH Process

Setting the desired product parameters is significantly simpler due to the reduced plant complexity and at the same time availability also increases.

In principle the process is divided into three phases: Filling, rounding and discharging. During the filling phase, the maximum product volume is conveyed into the processing chamber. During the rounding phase, the particles are stressed until rounded by optimum geometry and process parameters. In the discharging phase, the processing chamber is emptied by a suction unit with cyclone and separated.

NETZSCH Rounding Unit GyRho

Your Benefits

Plant data for the NETZSCH GyRho System compared to competitors´ systems

30 % higher plant availability
in comparison to previously used processes 
65 % total yield*
thanks to the innovative plant concept, optimized grinding chamber- and classifier design
 * up to 65 % total yield based on amount of raw material and depending on its origin and type
35 % lower operating costs*
compared to standard plant trains
 * Opportunity-, working-, spare part-, electricity costs, depreciation and costs for graphite concentrate
90 % lower maintenance costs
thanks to a significantly lower number of machines
60 % smaller surfaces
at identical production capacity thanks to compact setup
60 % less energy
for identical production capacity (half of installed power and optimized operation mode)

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