AERZNER MASCHINENFABRIK GMBH

Pneumatic conveying technology
for Dyckerhoff

1 Aerzen Delta Screw unit for the transport of cement dust from the electric filter

2 The crushed rocks are piled up into a stockpile so that they can be fed into the process in a more homogeneous form

3 The vertical mill crushes the mineral mixture before it is conveyed into the rotary kiln

4 Trio of Delta Blowers: Aerzen blower technology plays an important role in all processes in Lengerich

5 Dyckerhoff operates about 130 units. The requirements for availability and energy efficiency are high

All Sienk

The company uses limestone from the surrounding area in the manufacture of high-quality cement mixtures

All Sienk

Pneumatic conveying technology features prominently in handling the flow of materials in the cement industry. Blowers convey the fine material in pipelines throughout the production process. The requirements for the availability of the assembled units are high, as production would come to a standstill without blower air. Dyckerhoff has used Aerzen solutions for decades in its Lengerich cement plant, convinced by the innovative approach to air compression.

Hot process air is one of the most important energy sources in a cement plant. Dyckerhoff uses fuel oil for heating up, and then switches to pulverised lignite which is blown into the rotary kiln by means of a burner lance. The lignite burns immediately. In its kilns, Dyckerhoff can also burn derived fuels like fluff, a fibrous and high-calorific mass that consists mainly of chlorine-free plastics.

1 Blower technology for fuel supply

Dyckerhoff also uses the principle of pneumatic conveying technology to supply the burner. Positive Displacement Blowers (GM 25, 304 to 1452 m³/h, 55 kW max) of the...