What is Aac blocks production line?

1. Production Line of AAC blocks

AAC Aerated concrete is the lightweight artificial stone, adopting the calcareous material and the siliceous material as components, forming the porous structures by the way of chemical gas generation, and obtaining the intensity after autoclaved curing. The calcareous material is mainly lime and cement, the siliceous material generally is industrial waste in China, such as fly-ash, tailings etc, or quartz sand. 

2. AAC blocks production line Main Process Flow:
1. Raw material: fly-ash (tailings etc), lime and gypsum after milling to the needed fineness (200 mesh)
2. Mixing the fly-ash, cement, lime, gypsum and water in the pot after batching.
3. Promote the slurry temperature to 40-50 degree by steam, and mill with aluminum powder for 1min.
4. Pour the slurry into the mould, and still in the curing room for frothing in 2-2.5h.
5. Cut it in to needed size by the cutter after the slurry approach the cutting intensity, and place the block on the trolley.
6. Autoclaved curing after the trolley enter into the autoclave (vacuum, rise the pressure, keep the pressure, reduce the pressure),keeping the constant pressure 1.2MPa. The whole process needs about 12h.
7. The products out of the autoclave are placed in a stack. We can recycle the scrap and the waste water from the whole productio