Basic Introduction Of AAC Block Making Production Line:
Autoclaved Aerated Concrete (AAC) is a siliceous material (sand, fly ash and silicon tailings such as waste porcelain clay, stone processing waste materials, blast furnace slag, etc.) and calcareous materials (lime, cement) as the main raw material, mixing fat gas agent (aluminum powder), by ingredients, mixing, casting, preraising, cutting, autoclave, curing process made of light porous silicate products, because by the hair contains a lot of gas even after the small pores, hence the name of aerated concrete.
Normal size of AAC block:
Length (mm): 600
Width (mm): 75, 100, 125, 150, 175, 200, 250
60, 120, 180, 240
Height (mm): 200, 240, 250, 300
Remarks: the size can be customized
Main raw material of AAC block:
1, Sand: meet standard JC/T622-1996, technical requirements: SiO2s >65%, 0.08mm residue on sieve <20%, CaCO3<10%, So3<2%, clay<8%, no impurity.
2, Lump quick lime: meet standard JC/T621-1996, technical requirements: A-CaO>65%, slacking time 8-15min, slacking temperature >65°C, burnt lime content <8%, ash content <10%, MgO <5%.
3, Gypsum: technical requirement: Dihydrate gypsum or phosphogypsum, SO2 content >35%.
4, Aluminium powder or aluminum paste: solids content >65%,
5, Cement: meet standard GB175-92, 32.5R bulk cement.
1, Sand: meet standard JC/T622-1996, technical requirements: SiO2s >65%, 0.08mm residue on sieve <20%, CaCO3<10%, So3<2%, clay<8%, no impurity.
2, Lump quick lime: meet standard JC/T621-1996, technical requirements: A-CaO>65%, slacking time 8-15min, slacking temperature >65°C, burnt lime content <8%, ash content <10%, MgO <5%.
3, Gypsum: technical requirement: Dihydrate gypsum or phosphogypsum, SO2 content >35%.
4, Aluminium powder or aluminum paste: solids content >65%,
5, Cement: meet standard GB175-92, 32.5R bulk cement.
1, Equipments For The AAC Block Making Production Line:
a. Crusher: Lime, gypsum, and such kind of bulk material need to be crushed as the first step in AAC Plant.
b. Ball mill: The AAC material must be fully grinded in order to make better reaction. Ball Mill is used widely, it has two types: dry and wet, can be chosen upon requirement.
2, Material Metering Equipments: Computer Control Automatic Metering System is commonly used as measurement of raw materials.
3, Material mixing and casting equipments: Mixer, it’s the slurry mixing machine, also is slurry casting machine.
4, Cutting Machine: the AAC blank is formed after casting and precuring, as the size is too large, it must be cut to achieve the required product size.
5, Autoclave: Autoclave is a device for silicate hydration products to get physical and mechanical properties.
6, Boiler: the boiler supports for the autoclave and preheat furnace and other facilities with heat.