Third Technical Seminar in Duesseldorf 2014

The LOESCHE Training Center organised from 14 to 16 October 2014 already the third open Technical Seminar in Dusseldorf.

In October 2014, the LOESCHE Training Center organised the third open Technical Seminar in Dusseldorf, which focused mainly on members of the cement industry. More than 50 participants from all over the world (customers, suppliers and colleagues from subsidiaries) joined this sold-out seminar for a two-day knowledge exchange in the architecturally interesting hotel Innside Hafen in Dusseldorf’s most modern part, the Media Harbour.

Loesche-Technical-Seminar-Düsseldorf-2014The first get-together took place on 14 October 2014 in the View Skylounge & Bar on the 16th floor of the seminar hotel. The bar offers a stunning view over the Media Harbour, the Rhine and its waterside promenade. During this first evening all participants already started to exchange experiences with LOESCHE experts and customers.

The seminar itself started on 15 October with a warm welcome by Theodora Bruns, head of the LOESCHE Training Center. Dr Daniel Strohmeyer, director of Process Technology, LOESCHE GmbH, moderated all sessions. The main theme of this year’s seminar was ‚cement – from raw material to product‘. Eight experts presented interesting lectures.

Volker Konradi from KC-Konradi Consulting started with a practice-oriented presentation on raw material benefication. Dr Klaus Eichas, senior consultant at VDZ gGMbH (German CementLoesche-Technical-Seminar-Düsseldorf-2014(2) Association), continued with a thematically related lecture on raw material homogenisation and its advantages with regard to the cement production process.

After the lunch break, the seminar continued with the first interactive part: Dr. Regina Krammer, LOESCHE Training Center, organised a group work called ‘World Café’, which already proved to be successful in the last year. All lecturers of the first seminar day hosted several panels (the so-called World Café tables) where all delegates had the chance to discuss their own specific questions with experts and other participants in small groups. These interactive sessions were accepted very well and vivid debates took place at the different tables. Not only delegates, but also the LOESCHE experts learned a lot during the World Café sessions.

After this very active part, Christian-Martin Ruthenberg, LOESCHE Training Center, gave a presentation on processes in a LOESCHE mill considering different feed materials. Finally, the last lecture was given by Hartmut Nitsche, LOESCHE Design Department, who introduced the new LOESCHE star wheel feeder.

The first day ended in the Classic Remise Düsseldorf, a center for vintage cars in a historic roundhouse for locomotives. All participants had the unique chance to see beautiful vintage cars and motorbikes in a spectacular atmosphere. Hundreds of photos were taken and all delegates enjoyed the tour filled with stories. It was obvious that cars are the most emotional masterpieces of engineering.

The second seminar day was opened by Hartmut Nitsche and Dietmar Kasel, both from LOESCHE Design Department, who compared mill designs adaptions in consideration of different feed materials. Afterwards, Stefan Tübergen, LOESCHE Process Technology, explained the influence of the process gas properties on the grinding process and the product transport within the mill.

The first session after the lunch break focused on hydraulics. At first, Dirk Grube, LOESCHE Design Department, explained the different hydraulic systems, before he answered typical FAQs about hydraulic spring systems used in LOESCHE mills in a practice-oriented way. After the second ‘World Café‘ round, Christian-Marin Ruthenberg and Dr Karl-Heinrich Zysk, Loesche Process Technology Department, gave an insight into clinker parameters and their influence on the grinding process. At the end of the second seminar day, the moderator Dr Daniel Strohmeyer summarised all technical topics. Theodora Bruns and Dr. Regina Krammer provided an outlook for the upcoming seminars in 2015.


As an innovation in this year, a voluntary after-event was offered. On Friday, interested participants had the opportunity to choose between two options: André Bätz, head of the LOESCHE Test Center in Neuss, invited to a tour through the Test Center. There, all visitors had the opprtunity to see LOESCHE`s test mills and to learn a lot about grinding tests. Especially the mobile grinding plant aroused great interest. A second group of participants visited the Ruhr Museum at the impressive mine Zollverein (‘Zeche Zollverein’) in Essen. A historian explained the origin, the historical development, and the potential of mining in Germany’s most important coal field, the Ruhr District (‚Ruhrgebiet‘):

The Third Technical Seminar Dusseldorf offered again a great opportunity to join a network of experts, to foster the personal knowledge and to establish interesting contacts within the cement industry. The networking continued virtually after the end of the seminar. The Training Center team wants to thank all presenters and participants for their support and effort. The planning for next year‘s Technical Seminar has already started.