ONESTONE CONSULTING S.L.

Drives for large vertical roller mills

1 Mill market development in the cement industry, excl. China OneStone Research
2 Supply gap mill deliveries to/from China OneStone Research
3 VRM orders by size OneStone Research
4 OK cement mills program FLSmidth
5 Conventional 8600 kW 3-stage WPV gearbox FLSmidth Maag Gear
6 Siemens/Flender EMPP gearbox Siemens Drives
7 CEM 6000 kW drive for a raw material mill FLSmidth Maag Gear
8 MultiDrive with four drive units GPSE
9 COPE 8800 kW gearbox Renk/Loesche
10 MAX drive FLSmidth Maag Gear
11 Quadropol TD and RD roller drive concepts TKIS
12 Quadropol RD 1800 kW drive unit TKIS
13 Illustration OK 54-6 mill FLSmidth
14 MVR 6700 C-6 in Brazil GPSE
15 MVR 6700 C-6 in Algeria GPSE
16 LM 70.4+4 CS cement mill with COPE drive in Nigeria Loesche
17 LM 72.4+4 CS cement mill illustration Loesche
18 Quadropol QMC2 48/24 3RD in France TKIS
19 Quadropol QMC2 64/30 4RD in Mexico TKIS
Conventional and new drive solutions for VRM Siemens Drives

The continuing development in the size of vertical roller mills and their corresponding increase in market share when compared to other mill types in the cement industry is only feasible with adequate drive solutions. In this article we profile the different solutions and review projects where these new drive solutions are already integrated.

1 Introduction

Vertical roller mills (VRM) have dominated raw materials and coal grinding for many years, and in cement and slag grinding the market share of VRM is constantly growing with larger mill sizes. In the period 2009 to 2015, of the 1209 new mills that were ordered by the cement industry outside China, 661 units or 55 % were VRM, the remaining 45 % were other types such as ball mills, high-pressure grinding rollers (HPGR) and horizontal mills. Figure 1 shows how the mill market potential developed and how the market share of VRM changed. A large quantity of mills outside China has...

TEXT Dr. Joachim Harder, OneStone Consulting S.L., Barcelona/Spain
This article appeared in

ZKG 1-2/2017

This article appeared in

ZKG 1-2/2017

Ressort:  Markets and Trends
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