High-efficient cement manufacturing with POLYCOM^® and SEPOL^® PC – Machine and System Concept –

1 Process flow sheet of a combi grinding system with POYLCOM^® and SEPOL^® PC

2 Design of high-pressure grinding roll POLYCOM^®

3 Comminution process in high-pressure grinding rolls

4 Wear protection system of the POLYCOM^®

5 Sectional view of the static-dynamic separator

6 Lower part of the SEPOL^® PC: cross current separator

7 Aeration floor of the cross current separator

8 Upper part of the SEPOL^® PC: high-efficiency separator SEPOL^® LM

9 Process flow sheet of a finish grinding system with POYLCOM^® and SEPOL^® PC

10 Process flow sheet of a finish grinding system with POYLCOM^®, SEPOL^® PC and existing ball mill circuit

11 Example of a Polysius plant layout of a raw grinding plant with feed hoppers and connection of kiln gases

12 Example of a Polysius plant layout of a finish grinding system

For cement grinding, the high-pressure grinding roll (HPGR) POLYCOM^® and the static-dynamic separator SEPOL^® PC can be installed as a finish-grinding circuit or, in combination with a ball mill, as a combi-grinding system.

1 Introduction:

The HPGR POLYCOM® from ThyssenKrupp Polysius has been successfully in operation for more than 25 years. More than 65 of the mills are producing high-grade cements in energy-efficient combi-grinding systems all around the world. The main characteristic of such a combi-grinding system is the pre-grinding of cement clinker in the POLYCOM®, which works in closed circuit with the static-dynamic separator SEPOL® PC, and afterwards finish grinding in a subsequent ball mill. One significant advantage of this system is the considerably lower specific power consumption compared to cement...