Optimization of the air flow rate in a laboratory scale horizontal continuous dry stirred media mill

Rácz, Ádám and Tamás, László (2018) Optimization of the air flow rate in a laboratory scale horizontal continuous dry stirred media mill. In: 9th Internation Sympozium on Fine Grinding and Dispersing, 2018.10.11-12., Braunschweig, Németország. (In Press)

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Abstract

Dry grinding in stirred media mill comes to the front in the recent years, as the demand grows for the production of fine products. The present paper deals with the operation of a self-developed laboratory scale horizontal continuous dry stirred media mill. The mill was equipped with a measurement and data acquisition system, so the air flow rate and pressure drop in the mill can be measured continuously. In the recent period notable developments were carried out in the milling system, and as a result the air flow rate was significantly increased. To evaluate the operation of the new design grinding experiments were carried out at different air flow rates, and its effect on the product fineness was investigated. The applied grinding media diameter and rotor tip speed has a remarkable influence on the air flow rate of the mill, which influences the residence time and thus the product fineness.

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