Black sand through crushing technology from BHS-Sonthofen

Published 19/4, 2022 at 10:10

Cement manufacturer Amreyah Cement relies on crushing technology from BHS-Sonthofen at its plant in Egypt. The company uses a BHS RSMX 1222 rotor centrifugal crusher to recover high quality additives from previously unused slag to make its cement production more sustainable.

Superior crushing capacity

The RSMX 1222 is a high performance crusher with its vertical shaft being particularly suitable for crushing and refining both minerals and highly abrasive materials with a very high hardness such as slag. The input material, which has a maximum particle size of 50mm, is accelerated to a very high speed in the twin chamber rotor and then hurled against a fixed anvil ring. This reduces the output material to the required particle size.

One particular advantage of the BHS machine is that a material bed of slag forms along the centrifugal chambers in the twin chamber rotor that provides autogenous wear protection. This drastically reduces wear on the rotor, which is essential with the highly abrasive input material. As the input material leaves the rotor, it passes through centrifugal profiles made of particularly hard tungsten carbide which withstand the highly abrasive properties of the slag and further reduce wear on the machine. The result can be adjusted by selecting the appropriate speed to achieve Amreyah Cement’s target throughput rate of 150t/h with a particle size of 0mm to 4mm.


Experience from Abu Dhabi ensures success

A similar project has already been realised with the RSMX 1222 in Abu Dhabi, whilst in the past BHS successfully carried out crushing tests at its test centre in Sonthofen with EAF slag that was supplied. The expertise gained in the process paid off and at the plant in Egypt, BHS-Sonthofen was able to not only refer to the test results from Abu-Dhabi, but also draw on the experience gained in setting up the slag processing machine.

“The RSMX has proven itself as a standard crusher for processing abrasive materials,” explains Hans Traut, the responsible project manager at BHS-Sonthofen. Amreyah Cement Co. is very satisfied with its decision to use crushing technology from BHS-Sonthofen and the company plans to work with BHS on other projects in the future.

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