Safe and clean material transport

Summary: With the exchange of the two cold-regenerated adsorption dryers for the powerful heat-regenerated adsorption dryer, Andreas Jaculy’s planning team, the selected maintenance partner of the H. Oetelshofen GmbH & Co. KG, created an exceptional win-win situation for both companies – for the lime works and for its maintenance partner. While the lime works saves enormous energy costs, the maintenance partner profits from the significantly reduced maintenance requirements at the compressors. The benefits for all those involved result from the different operating principles of cold- and heat-regenerated adsorption dryers.

1 Introduction

Just imagine a kind of pneumatic tube in the XXL size. In the H. Oetelshofen GmbH & Co. KG lime works, limestone powder is transported according to the plug-conveying principle from the production sites to the storage silos. Compressed air serves as the transport medium and in this respect one thing is of utmost importance: it must be absolutely dry. With its ­
Osterholz stone quarry in Wuppertal-Hahnenfurth/Germany, and the adjacent works, the medium-sized enterprise ranks among the pioneers and pacemakers of industrial lime production. Situated in the heart of one of the most...

Related articles:

Issue 2012-02

Second lime kiln for Karadeniz

Karadeniz Madencilik San. ve Tic. Ltd. S¸ti., domiciled in Istan­bul, Turkey, placed an order with Maerz for the supply of engineering, license, know-how and equipment as well as technical...

Issue 2011-09

Weighing technology in Europe’s biggest lime works

Rheinische Kalksteinwerke GmbH was founded by August Thyssen in 1903. Since 1999 Rheinkalk GmbH has been part of the Belgian Lhoist group which owns more than 90 plants and is the world’s leading...

Issue 2018-9 GEBR. PFEIFFER SE

Gebr. Pfeiffer supporting long-time customer’s modernization project

When it comes to processing the most different types of rock, Hermann Trollius GmbH has been relying upon Pfeiffer’s long-lasting products ever since the 1960s. In the lime and crushed stone works in...


Clean, dry compressed air at the point of use

There are high demands on the processing of compressed air, which is required in large volume flows for cement production. In central compressed air stations, adsorption dryers and filters downstream...


Maerz Ofenbau projects in Mexico and Russia

A third kiln for the lime plant Mexicana de Cobre/Mexico Not far away from the Sonora desert, in the same-named federal state of Mexico, two Maerz kilns erected in 2009 and 2014 are performing to the...