Founded under the name Kalkwerk und Steinbruch Karl Rygol, the company is now one of the leading manufacturers of dry mortar in Bavaria. The company also offers a wide range of burnt lime and limestone products. Rygol has been a licensee and shareholder of the German Sakret Group since 1976. At the Kalkwerk Rygol GmbH & Co KG site in Painten near Kelheim, two micro gas turbines with a total output of 265kW(el) are used to operate the drum dryer. "The hot exhaust air from the micro gas turbines is fed directly into the drying process via a new hot gas generator specially developed by Gammel Engineering," explains project manager Christian Blendl. "This reduces the fuel requirement for the dryer's natural gas burner. The electricity generated is consumed in the plant's own power grid." Gammel Engineering was entrusted with the entire project, from the energy concept to commissioning: system, approval and implementation planning, tendering, project management and construction management. The total investment is around 600,000 euros.
As always with Gammel projects, standard is not enough: "With conventional CHP gas engine applications, a large proportion of the waste heat is generated as low temperature, which cannot be sensibly accommodated in the Rygol lime works over the lifetime of the plant. This is why the microturbine technology was chosen. The innovative aspect of micro gas turbines is the highly efficient technology for decentralized power generation. The great advantage is that only a waste heat flow in the range of 250°C-300°C is generated, which can be used directly in the drying process," reports Christan Blendl. To further increase efficiency, the electronic cooling air is also used as preheated combustion air for the natural gas burner on the dryer, which saves additional energy and costs. The innovative energy and environmental project is the new benchmark in the industry and sustainably improves the competitiveness of Kalkwerk Rygol.
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Rising energy and raw material prices can be counteracted by using sustainable energy technologies and thus reducing CO2 emissions. This not only significantly reduces cost explosions, but also reduces your own ecological footprint. Pioneers in the dairy industry are also focusing on this.
Some people are simply indispensable in a company - Thomas "Tom" Winkler is one of them. He started with us around 25 years ago as a young engineer and grew from project manager to project manager to authorized signatory. With a great deal of passion and dedication, he has become a permanent fixture in our management team. But above all, Tom is a real team player who always has an open ear, is always willing to help and makes everyday life easier with his good humor.