Operational experience: Bergmann lime plant using CT dosing systems

In the 3/2017 issue of the trade journal Cement International, the Junior Managing Director of Bergmann Kalk shares valuable operational experience regarding their new PFRK lime shaft kiln in Azendorf, Upper Franconia. Specifically, they highlight how a modern dosing machine stabilizes the entire combustion process. Indeed, this advanced plant in Germany has successfully burned lime for over a century, and this recent technological upgrade secures its production for the future.

Precise fuel dosing via Carbotechnik’s dosing machine

To achieve this, the high-precision dosing machine developed by Carbotechnik Energiesysteme GmbH plays a key role in the daily kiln operations. Consequently, the system supplies coal dust reliably to the six lances in each kiln shaft and ensures an exceptionally consistent fuel feed. Furthermore, this continuous supply prevents temperature fluctuations, which directly improves the final product quality.

In addition to the precise fuel feed, the mechanical layout optimizes the pneumatic transport. Specifically, a pre-mounted air manifold on the dosing machine distributes the conveying air and continuously monitors the individual air flows. As a result, operators can adjust the air flow for each lance individually by using robust ball valves. Therefore, this smart design allows precise control, supports stable combustion, and minimizes overall energy consumption.

Integrated dedusting and system benefits

Moreover, Carbotechnik also designed, engineered, and manufactured the specialized top-mounted filter. Consequently, this auxiliary unit efficiently removes dust from the fluidizing air to guarantee clean, environmentally friendly plant operations. Ultimately, these high-tech components form a fully integrated solution for precise coal dust dosing, reliable air distribution, and efficient kiln operation.

For readers who want to explore the complete technical report, the full article offers deep industrial insights. Indeed, you can find the detailed project review in Cement International, Issue 3/2017, starting on page 29.