Henan Zhongke Engineering & Technology Co., Ltd.
Zhongke Machinery--Chinese professional manufacturer of rotary kiln !
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Long lifetime Economic And Efficient Zhongke Machine AAC plant At Good Price
Introduction of AAC Block Production Line:
1. Storing and supplying of raw materials of AAC blocks:
All raw materials are carried into factory by trucks, such as Fly ash, sand or lime are gathered in specified raw materials field waiting for use. Sacks of cement and bulk cements stored in cement warehouse. Chemicals and aluminium powder are separately keeped in chemical warehouse and aluminium ware hours.When used, these raw materials are carried into workshop respectively.
2. Processing of raw materials:
Fly ash, sand or limestone is sent into ball mills by vibration feeders and belt conveyor.Then fine powders of flyash,sand or lime are pumped into slurry tank.
Quick lime is sent by vibrating feeder and belt conveyor into jaw crushers to smash. Smashed lime is sent into lime silo by bucket elevator and then is transported into ball mills by screw conveyor. Fined materials are sent into proportion bin by screw conveyor and bucket elevator.
3. Aerated block ingredients,stiring and casting
Flyash (or sand or stone powder )and waste slurrry are measured in measuring tank.After the measuring and mould in their place,slurry stirring begins. Slurry temperature should reach about 40°c.
4. Aerated block’s procuring and cutting.
Fly ash style aerated block raw material proportion
| Parameter Name | Parameter Value |
| flash | 65-70% |
| cement | 6-15% |
| lime | 18-25% |
| gypsum | 3-5% |
| Aluminum powder paste | 8 |
| Water & material rate | 0.60-0.65 |
| Casting temperature | 36-40°C |
| Aluminum mixing time | 30-40s |
Sand style aerated block raw material proportion
| Parameter Name | Parameter Value |
| Sand | 55-65% |
| cement | 10-20 |
| lime | 20-30% |
| gypsum | 2-3% |
| Aluminum powder paste | 8 |
| Water & material rate | 0.65-0.75 |
| Casting temperature | 35-38°C |
| Aluminum mixing time | 30-40s |
Introducing the domestic and international advanced technology, the manufactured autoclave aerated concrete (AAC)is divided into ground flip (hydraulic flip) cutting machine, overhead flip (YiTong type mechanical flip) cutting machine according to different cutting process, which can produce aerated concrete block and boards with not more than 6 M length.
Provide the complete set of production line shared by the aerated concrete block and limesand brick, applicable for the annual output of 100000 + 100000 cubic meters
Provide the complete set of production line of the sand aerated concrete blocks and boards, applicable for the annual output of 50000 -200000 cubic meters
Provide the complete set of production line of fly-ash aerated concrete blocks and boards, applicable for the annual output of 50000 -200000 cubic meters
Autoclave aerated concrete block is a porous concrete product, using sand(or fly ash), cement, lime, aluminum (or aluminum paste), gypsum and othermaterials, through grinding, measuring, mixing,pouring, curing, cutting, autoclave and other processes, it belongs to silicate concrete. It is known as autoclave aerated concrete, but generally referred to AAC. It is mainly used for the frame structure building, inner wall partition, external walls orinsulation composite wall.
Advantages of AAC
light weight : The dry weight of AAC block is 400-700kg / m³, which is only 28% of clay
brick , and 20% of concrete block, reducing the weight of the building.
Convenient and fast construction:
the volume of one AAC block
equal to 18 pieces clay
bricks, can greatly improve the speed of construction. Can be easily sawing, drilling,
nailing, hanging, engraving, which makes pipelines laying, re-decoration more simple.
Exact dimensions:
Product dimensions precise,making the tolerance
of length, width and
height can be controlled within ±1.0mm. These precise size makes mortar layer thinner
and reduce the cracking problem.
Fire retardant:
AAC block is a non-combustible inorganic material
with excellent fire
resistance, fire resistance is more than 700℃. Fire resistance of AAC block wall (200mm
thick) can up to 8 hours, which is the first grade refractories.
Production process Description
Raw material processing
1. The cement is bulk cement, which is pneumatically transported to the cement storage bin bya bulk cement truck. The cement storage capacity considered in this design is 90t.
2. After the lime and gypsum are crushed by the jaw crusher by calculation, the elevatorenters the storage bin, is fed by electromagnetic vibration, enters the mill, and the finely mixed ash is transported by the elevator to the ash storage bin for backup.
3. The sand is transported into the slurry storage tank through ball milling and water wet milling into a slurry storage tank, and after the slurry specific gravity required for production is reached, it is pumped to a stirring pouring machine through a slurry pump.
Ingredients pouring
After the materials are ready, measure them separately, mix and stir with a stirring pouring machine,
add the metered and stirred aluminum powder suspension, stir for 30-45 seconds, and then pour into the mold.
Cutting Section.
After pouring and foaming, the green body is statically stopped to a certain hardness (about 1.2-2h), that is, cutting is performed, and the green body is lifted to a steaming cart by a marshalling spreader, and then marled into a kettle.
Autoclave
After cutting the green bodies, they can be marshalled to a certain number by driving and then enter
the autoclave for autoclaving.
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Company Introduction