Waste-to-Energy and RDF plants

Grate incineration / Procedures adapted to customers' needs

We offer developers and operators flexible and innovative approaches. The versatility of the systems, tailored to each customer, is not only evident in that incineration of residual waste is in a broad range of calorific values 6>20>30 MJ/kg-, but also in the variety of throughput rates per one-way-grate line from 15.000 > 250.000 t/year. One-way-grate to 10 m broad.

At the forefront of current ongoing research activities is optimisation of systems engineering for incineration plants, in particular in the field of firing technology, energy use and heat recovery. It goes without saying that this experience would also be incorporated to the benefit of your system during its many years of successful operation and would ensure that this too was operated successfully for decades to come.

Use of a wide range of fuels
The air-cooled grate incineration system is suitable for almost all solid fuels with a predominantly coarse structure and designed in particular for low calorific fuels. By targeted preheating with controlled air supply and flue gas recirculation, the fuel is processed so that it is suitable for ignition and incineration.

The incineration process takes place with a modern combustion control system. The combustion quality is controlled here by regulated intervention of combustion room temperature, O2 and CO measurement, as these affect the secondary and recirculation airflow. This ensures stable firing capacity and good burnout. The incineration plant with feed grate and combustion control thus achieves a reduction in emissions related to incineration below the statutory limits.

  • The typical features of this technology are:
  • great flexibility for calorific value and throughput
  • low amounts of residue
  • minimum emission figures
High-calorific fuels with water-cooled feed grate

With refuse-derived fuels or residues from paper production, for example, a water-cooled feed grate is used. Deciding in favour of one or the other depends on the planned thermal input and the available fuel.

The more viable procedure from a commercial aspect

It can be established that this is a proven technology for thermal use of waste for generating electricity and heat, which excels with its robust and reliable design and whose advantages can be exploited in particular when the available fuels tend to be varied and present problems. This is the more commercially viable procedure in the lower to mid power range in particular.