A German cement plant commissioned Lechler to optimize the injection system of the gas cooling tower (GTC). The aim was to further increase the control range of the spillback nozzles (control ratio 10:1) in order to achieve a minimum volume of 1.5 m³/h without switching off nozzle lances. At the same time, efficiency should be increased and energy costs reduced.

• Optimization of the gas cooling tower's injection system
• General increase in efficiency
• Reduction in energy consumption

• Heterogeneity of the GTC injection system (different spillback nozzle lances)
• Inefficiency of the droplet spectrum and existing nozzle technology
• Associated high energy costs

• Installation of 12 spillback nozzle lances RS II-3
• Replacement of the existing pump with a precisely tuned pump with frequency converter
• Much finer droplet spectrum of the newly developed spillback nozzle enables
  • reduction of the supply pressure from 35 to 25 bar
  • reduction in pump output

• Sustainable and long-term reduction in energy and operating costs
• Tangible and measurable benefits for the customer by the use of technical innovations and customized solutions