• Model NO.：WDAAC2.4
• Trademark：Weida
• Origin：Linyi
• HS Code：8474802000
• Production Capacity：30000 to 50000m3 Per Year

NO.

Main Equipment

Model

Qty.

1

Ball mill

 

No need

2

Slurry tank

15m3

3

3

Slurry pump

80YS80-20

4

4

Pouring mixer

Dia1.6m,37kw

1

5

Ferry car

3kw

1

6

Cement silo

50t

1

7

Lime silo

50t

1

8

Batching Control system

PLC: Siemens

Inventor:Schneider  

1

9

Demould crane

Travel,lift,open mold semiautomatic

1

10

mold

2.4*1.2*0.6

14

11

Side plate

2.4*1.2*0.6

62

12

Steam trolley

2.4*1.2*0.6

24

13

autoclave

Dia2*16m

2

14

boiler

3ton,coal

1

Basic Introduction:

Lightweight Autoclaved Aerated Concrete AAC Block Machine and Good Price

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, pre-raising, 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.

Advantage of AAC:

1. Lightweight: Porosity achieve 70% to 85%, volume density is generally 500 ~ 900kg/m3, as 1/5 of
general concrete the 1/4of clay, the 1/3 of hollow brick, and similar with wood can float in water. It can
reduce building weight, reduction in the cost of integrated building.

2. Fireproof: Most of the major raw materials is inorganic materials, so it has good fire resistance,
and do not emit harmful gases when meet fire. Fire 650 degrees, as a refractory material, the thick
up of 90mm walls can reach to 245 minutes fire resistance, 300mm thick up wall can reach to 520
minutes fire resistance.

3. Sound insulation: Due to a unique porous structure, so it has a sound absorption capacity. The
sound absorption capacity can reach of 10mm thick wall up to 41 db.

4. Insulation: As the material inside has a large numbers of the pores and porous, which has a
good thermal insulation properties. The Thermal conductivity is 0.11-0.16W/MK, as 1/4-1/5 of
brick. Typically, the insulation effect of 20cm thick aerated concrete wall is equivalent to 49cm
thick solid brick walls ordinary.

5. Permeability: Result of material by the composition of many independent small pores,
the moisture absorption is slow, in the volume of absorbent is 5 times of clay saturation do.
When used in the bathroom, the wall can be treated to interface directly paste tiles.

6. Anti-seismic: The same building structure, improve the two seismic than the brick level.

7. Green: Manufacturing, transportation, all use the process of pollution, to protect arable land,
saving energy, is one kind of a green building material.

8. Durability: material strength is stability, in the specimens tested after one year of atmospheric
exposure; the intensity increased by 25%, and remained stable after ten years.

9. Shortcut: it has good machinability, can be sawed, planed, drilled, nailed, and available
appropriate as bonding of adhesive material, so create favorable conditions for building construction.

10. Economies: An integrated lower cost than using more than 5% of solid clay bricks, and can
increase the usable area, greatly enhance the utilization of floor space.
 

Requirements for Raw Materials:

1

Sand 

JC/T622-1996

    

Excellent goods

First-class goods

Qualified goods

SiO2

silicon dioxide

≥

85%

75%

65%

K2O+Na2O

kalia+sodium oxide

≤

1.50%

3.00%

5.00%

SO3

sulfur trioxide

≤

1.00%

2.00%

 

clay

≤

3.00%

5.00%

8.00%

 

water ratio

≤

8.00%

 

calcium carbonate 
(coral, sehll, etc.)

≤

10.00%

 

impurity (bark, grass roots)

 

N/A

2

Flyash 

JC409-91

    

Excellent goods

First-class goods

Qualified goods

 

Finess(0.045mm square screen left)

 

≤

30%

45%

55%

 

Water requirement of normal consistency

 

≤

50%

58%

60%

 

loss on ignition

 

≤

7%

12%

15%

  

SiO2

≥

40%

40%

40%

  

SO3

≥

2%

2%

2%

3

Lime

JC/T621-1996

    

Excellent goods

First-class goods

Qualified goods

A(CaO+MgO)

Available calcium

≥

90%

75%

0.65

MgO

magnesia

≤

2%

5%

8%

SiO2

silicon dioxide

≤

CO2

carbon dioxide

≤

0.07

 

degesting speed  min

≤

5--15

 

degesting temperature ºC

≥

60--90

 

undigested residue 

≤

5%

10%

0.15

Fineness of finished product (remainder above 0.08mm hole screen)

 

≤

10%

15%

0.2

4

Cement

GB175-1999

    

Chemical composition

 

SiO2

silicon dioxide

 

21-23  %

 

Al2O3

aluminium sesquioxide

 

5-7    %

 

Fe2O3

iron sesquioxide

 

3-5    %

 

CaO

calcium oxide

 

64-48  %

 

MgO

magnesia

 

4-5    %

 

5

Aluminium powder

JC407-2000

 

Type

Code

Solids content

activated aluminium
in solids

Foaming rate (%)

≥  

≥  

4min 

16min 

30min

Oil-based formulation

GLY-75

75%

90%

50-80%

90%

99%

GLY-65

65%

Water-based formulation

GLS-70

70%

85%

40-60%

GLS-65

65%

 

Main Equipments in AAC Production Line:

· Material-milling Equipments:

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.
· Material Metering Equipments: Computer Control Automatic Metering System is commonly used as measurement of raw materials.
· Material mixing and casting equipments: Mixer, it's the slurry mixing machine, also is slurry casting machine.
· Cutting Machine: the AAC block is formed after casting and pre-curing, as the size is too large, it must be cut to achieve the required product size.
· Autoclave: Autoclave is a device for silicate hydration products to get physical and mechanical properties.
· Boiler: the boiler supports for the autoclave and pre-heat furnace and other facilities with heat.
· Auxiliary Equipments: 

 a. Mould Frame, Mould Bottom and Mould Car, they composed together to form the Casting Mould, which is the main forming equipments in AAC Production line. 
 b. steam trolley, Ferry Cart and Hangers, they must be equipped as auxiliary equipments in autoclave curing system.
c. Block Separator. The separator is a special machine whose function is to separator the plaste block into piece,in order to be transfered and used. 
d. Block packing machine.
 

Pre-Sales Service

1. Providing detailed information and serious introduction of our products for customers, to make customers fully understand the product performances according to their requirements; supplying professional technician for site inspection (field, raw material, local marketing etc.); providing factory programming and industrial designing for customers.

2. Service hotline for aswering all questions for customers.

In-Sales Service

1. Managing contract review carefully to make sure the supplied products meet customers' requirements; communicating with customers and delivering their information in time.

 

2. Delivering products on time according to contract requirements. The Marking Dept. will contact customer to inquire about the products inspection situation after products arrive there. Dispatching professional technician for installation conducting and testing till the equipments run normally and providing technical training service if customer requires.

After-Sales Service

1. We will give an answer within 24 hours if there is any quality problem of the products, the technician will be dispatched to solve the problem on site within 48 hours (same province) (3 days for other provinces).

 

2. Quality guarantees are carried out for all products, we will take the responsibility and perform the contract strictly if any quality problem occurs during the warranty period, and we will provide spare parts and maintaining service for the machines beyond the warranty period.