Safe and clean material transport

1 The most important part of the compressed-air treatment at Oetelshofen: The heat regenerated adsorption dryer EVERDRY FRA-V

2 The central compressor station

3 Phase 1

4 Phase 2

5 Remote online control of the EVERDRY FRA-V via Internet

Lime works H. Oetelshofen GmbH & Co. KG

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...