Abstract
The article is devoted to the question of improving the efficiency of grinding cement clinker. To improve the efficiency of grinding in ball mills closed circuit is proposed in the separation system to introduce fresh air. It is proposed to discharge excess separation air into a high-capacity filter. To solve this problem, the article makes a number of assumptions. For the calculation of the separation system, the expressions of the conversion of the initial product in the separator and flues of the system are given. The values of the concentration of the solid phase in different parts of the gas path of the separator are determined. On the basis of the obtained formulas, a system of equations is obtained, which allows to find the mass flow rate of fresh air. It is necessary to maintain the desired temperature of the separation process and the finished product. The dependence of the temperature of the finished cement on the volume of fresh air is obtained by the example of a closed circuit cement ball mill of the Belgorod cement plant.
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