AAC block plant:
1. Introduction
Aerated concrete block (light block ) is the light and porous building material. It has light weight, keeping temperature, cannot burn and other advantages. It can be made into many kinds of blocks(for example: 600× 200× 100, 80× 80× 180, 240× 115× 53, 600× 200× 125), they could be used industry building and common building. They are more and more popular in the world. In the future, they will replace the Clay brick completely.
2. Areated concrete common conception:
Common concrete density is usually 1600-2400kg/m3, but Areated concrete are 500kg/m3, 600kg/m3, 700kg/m3. It has not the big grain, main use silicon material (for example: Coal ash, sand, stone dust and others ), through making the material small for example sand, they can be used directly if has enough degree of small (for example coal ash. Mixing calcium material lime cement water to a special slop, then add the aluminum dust and the additive. Make the aluminum dust and the special slop have a Chemical reflect. Then produce Hydrogen to make the concrete slop to expanding or swell, foam. Next, put them into the curing room to concreting cutting steaming curing, last, there will become the light brick, the porous rate is 70-80%.
The Production Process Of Autoclaved Aerated Concrete Block
Raw material storage
Flyash, sand, cement, lime, gypsum and aluminum powder should be stored separately in the corresponding stock yard. Then they will be disposed separately and transported to each work section when used.
Raw material disposed
Flyash and sand will be transported into the wet ball mill by the conveyor belt. Afterwards by slurry pump the slurry will be transported into slurry tank.
Batching, mixing and pouring
The lime and cement will be transported successively by the screw conveyor into automatic weigher for weighs, and the slurry will be transported by the slurry pump into automatic weigher for weighs. Afte weighing the powder and slurry will be transported into the mixer for uniformity and pouring into the mould box.
Curing, Cutting
The slurry which be poured into the mould box will preharden in the curing room which temperature is 40-50 degrees in one or three hours. When the body meets hardness of being cut, it will be transported with the mould box by reversal crane into the cutting cart. Then it will move with the cutting cart for level and vertical cutting.
Autoclaved and Finished product
The cut body will be putted on marshalling site by the crane. The marshalling body will be transported into the autoclaved kettle by the hauling engine or mobile windlass for 8-10 hours maintenance. Afterwards the finished products will be pulled away from the the autoclaved kettle by the hauling engine, with separating and packing they transported into stock by forklift.
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