Mathematical separator performance evaluation

1 Raw mill No. 6 with ring motor technology (Polysius)

2 Detailed view of the separators 1 and 2

3 Detailed view of the separators 1 and 2

4 Schematical route of the input and output through the mill and the separators

5 Parts of the separator where the operator can adjust the fineness of the product

6 Particle size distribution for samples of separator 1

7 Particle size distribution for samples of separator 2

8 Efficiency of separator 1

9 Efficiency of separator 2

10 Total efficiency

11 Tromp curve of separator 1

12 Tromp curve of separator 2

13 Particle size distribution separator 1

14 Particle size distribution separator 2

The lines 4, 5, 6 and 8 of the Teheran cement factory

Separators in the cement industry have the task of separating coarse from fine material, and it is worthwhile to fully understand the function of separators in raw and cement mills. Consequent troubleshooting, the elimination of technical barriers and optimum processing will result in an increase in the final product of the mill.

1 Introduction

The Teheran cement company was founded in 1954. At first, the plant production was started with a kiln capacity of 300 t/d clinker. Nowadays, the factory complex has eight cement production lines with a clinker output of around 12 100 t/d. Two smaller lines are already shut down, while a 9^th line is under construction. The production at the complex consists of Portland cement types 1, 2, 3 and 5, oil well cement classes A, B, D, E and G, Portland pozzolan cement (types 1 and 2) and masonry cement (225).

For the stable operation of a cement mill it is essential to know its...