Storage Tanks were Built to be Earthquake-Proof
From the initial idea to on-site assembly, everything came from a single source and everything from our own company.
The Hollu Systemhygiene company is modernising and expanding its production. Eight new storage tanks for alcohols were needed. Condition: The condition: The supplier should have across-the-board competence from engineering and production to transport and assembly to be able to provide all services himself - a requirement that could have been specifically a tailored for the “United Services of Kremsmueller". Based on the plans drawn up by us, five 30m³ storage tanks with a diameter of 2.5m each and three 60m³ tanks with a diameter of 3.5m each were fabricated. All the tanks are about 8m high.
Two facts make the project stand out. Firstly, Zirl (near Innsbruck) is located in Austria's highest earthquake zone 4. Therefore, ground movements had to be considered in the calculations (with regard to lateral acceleration etc.). The connection of the pipe supports to the vessel had to be of sufficient size. The thickness of the lower bottom, at 8mm, is now twice as thick as normally required. Secondly, ground stainless steel was used for the tanks. Up to then, Kremsmueller had rarely ever worked on such shiny sheets in production. Machine-ground material has a very even surface. Every scratch, even a fingerprint, is almost irrevocable. So there was a need for caution and care in handling.
A special transport carried the eight tanks a distance of 300km to Zirl. After lifting them into place, special technology was used to prevent damage to the finish-sealed floor. A modular air cushion transport system, and not the classic heavy-duty rollers, was used to move the tanks and place them in exactly the right position, where they were fixed with special adhesive anchors.
"Getting everything from a single source was a basic condition for Hollu. Furthermore, with our modern machinery, we were certain of being able to also produce the desired tanks in appealing quality. After all, the customer is highly satisfied with the tidy work and smooth processing á la Kremsmueller. We will possibly be back in action for the next expansion step in a year or two," the Kremsmueller project manager says confidently.
Walter Primus, Technology Division Head, Hollu Systemhygiene: "Throughout the entire course of the project, we felt that we were being perfectly supported by Kremsmueller's Sales and Technology departments!"