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voestalpine Stahl GmbH,

The lime plant of voestalpine Stahl GmbH in Steyrling is one of Maerz's longest-standing customers. Recently, lime kiln no. 7 was completely renovated and brought up to the latest state of the art.
voestalpine Steyrling Maerz PFR kiln no. 6 revamped photomontage

Lime for the voestalpine steel plant in Linz

The lime produced in Steyrling is used for voestalpine's own steel plant in Linz. As early as 1962, voestalpine commissioned Maerz Ofenbau AG to build its first modern lime kiln - a PFR kiln with a capacity of 160 tpd. Further kilns followed in the 1970s and 1990s, and in the years that followed, the individual kilns were repeatedly upgraded to the latest technical standards - for example, by installing a completely new kiln control system.

In 2017, lime kiln no. 6, which was by now getting on in years, was rebuilt from the foundation upwards in a turnkey project together with Maerz - a logistical challenge due to the extremely cramped space conditions, after all the ongoing lime plant operations were not to be disturbed.

But that was not all: lime kiln no. 7 had also become outdated in the meantime and was getting more than just a "facelift". In the spring of 2021, voestalpine decided to upgrade the 250 t/d kiln and renew the kiln peripherals such as the kiln charging system, the exhaust gas filter and the entire electrical engineering and kiln control system. Maerz was again responsible for the implementation of the project with the proven team of companies from 2017.

Despite the difficult conditions caused by the Corona pandemic, the kiln was fired on schedule in December 2021.

Kiln type of kiln no. 7
Maerz PFR kiln with ring channel and refractory lining with pillars
250 t/d
Kiln capacity
Natural gas