Maximum performance, minimum costs, low emission rates and highest quality - when it comes to clinker production, our customers requirements are multifaceted.
In modern cement plants, the burning process is performed in three consecutive units. First, a multistage cyclone preheater with calciner, where the raw meal is preheated with kiln exhaust gas to approx. 800 to 900 °C and calcined. Then, there is the rotary kiln, where the sintering - a chemical-mineralogical process during which the cement clinker is formed - takes place at approx. 1,450 °C. Subsequently, the clinker minerals are "fixed" by the cooling process in the clinker cooler. The exhaust air from the cooler, which contains the recuperated heat, is used in the kiln as combustion air.
The POLFLAME burner incorporates numerous innovative, design ideas of ultramodern pyroprocessing technology. The unique patented burner design assures a high and precisely adjustable supply of oxygen to the heart of the flame. This guarantees good ignition and burnout of the different fuels. The high degree of standard fuel substitution by secondary fuels permitted by the burner reflects these performance advantages.
The POLRO rotary kiln has a statically determined support configuration on only two roller stations and has a direct drive system. The kiln shell with its splined tyres rotates on self-aligning rollers, which automatically adjust themselves to the momentary running conditions.
The POLYTRACK cooler is a combination of a static, horizontal aeration floor and an above-floor material transport system. Its convincing advantages are the very high material transporting efficiency and strict separation of the functions of transportation and aeration.