Sand lime brick

The patent for the production of sand-lime brick has existed since 1880. Eirich has contributed
to the sand-lime brick success story since its earliest industrial beginnings.

We supply material preparation equipment for state-of-the-art wall construction material

• mixing systems
• a full range of conveying, weighing and feeding equipment
• control and process control systems
• machinery and systems engineering
• a broad service portfolio
   

Premixing

• homogeneous distribution of all materials in the mix as well as a uniform coating of lime on the sand
• intensive wetting of the lime with water
• the full surface of the sand grains is activated to form calcium silicate
• clay agglomerates, which inhibit the formation of high-density calcium silicate with fine pores, are broken down
• lime agglomerates are reliably separated
• uniform brick structure when light aggregates or fly ash are mixed in
• outstanding, reproducible mixing quality
   

Secondary mixing 

• reliable separation of reactor material agglomerates
• accurate control of the moisture for pressing
• continuous material stream up to brick removal on the press
• no streaking when pigments are mixed in
• adaptation of the mixing power to changes in pressing output associated with different brick sizes