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concrete block machine, 1.professional manufacturer, 2.variousl capacity available, 3.good service system, 4.fast delivery - details see: https://www.machineto.com/2013-china-new-developed-autoclaved-aerated-concrete-block-machine-kehai-brand-10076139

2013 China New Developed Autoclave Aerated Concrete Block Machine

1. Introduction of Concrete Block Machine:
Autoclave areated concrete block machine (aac block making machine) is the whole production line for producing aac block, which is a kind of light and porous buidling material. It has lightkeeping temperature cant burn and other advantages. It can be made into many kinds of bricks(for example:600×200×100,80×80×180,240×115×53,600×200×125). They could be used for industry building and common building. Being more and more popular in the world, they will replace the clay brick completely in the future.

2. Brief Introduction of Concrete Block Machine:

2.1 Processing and storage of raw material:

Sand will be delivered to the plant via self-dumping truck and stored on the open yard. Bagged lime will be delivered to the plant by truck .Bagged gypsum powder will be delivered to the plant by truck Cement will be delivered to the plant via bulk tank truck .Aluminum powder or aluminum paste packaged in either barrel or bag will be delivered to the plant for temporary storage.

2.2 Batching and pouring:

When all kinds of raw material are ready, batching can be performed. Material in powder form (including lime, cement and gypsum) will be sent to powder metering scale for metering and weighing according to the given proportion. Sand slurry and recycled scrapped slurry will be sent to liquid metering hopper for scaling to the given proportion. As to the aluminum suspending liquid, Then the slurry will be poured into one mould.

2.3 Pre-curing (stopping and maintenance):

Slurry begins to foam after it is being poured into the mould and become preliminary curing. It will become the “cake” in 2 to 3 hours after stopping and pre-curing in the pre-curing room.

2.4 Cutting:

Cutting of “cake” shall be implemented after completion of foaming to form various sizes of product. Scraps formed during cutting will drop into the trench beneath the cutting machine and will be flushed by water into the scrap. Cutting and preparation of recycled scrap slurry will be controlled by the microcomputer program.

2.5 Autoclaving (steaming):

After completion of grouping the queued “cake” will enter the autoclave for steaming and hardening. Normally the autoclaving is in one cycle of 12 hours,

2.6 Post-autoclaving and finished product:

When the hardened finished product is hauled out of the autoclave, it will be handled onto the return line for side panel by use of the crane, then will stop at the block separating machine for separating. And then the finished product will be moved onto the wooden pallet placed onto the conveying line .

3. Features of Concrete Block Machine:

3.1 The operation of our aac block production line plant is simple and practical.

3.2 Waste materials and water can be recycled during operation process, it is environment-friendly.

3.3 The whole equipment has higher degree of automation.

3.4 The final products of aac block prodction line are high in precision, qualified product rate ≥ 98%.

3.5 Our AAC plant has good cost performance

4. Related Parameters of Concrete Block Machine:

(1) Product weight is according to 600kg/m³to control;
(2) annual capacity 300,000m³;
(3) set raw material proportion: cement 6.5%, raw lime 23%, flyash 68%, gypsum 3%, aluminum paste powder 350g/m³;
(4) water and material rate 0.631;
(5) one mould product 2.88m³;
(6) Casting slurry cycle time 5-6 minutes, cut cycle time 5 minutes;
(7) casting slurry temperature 38-42 degree;
(8) body quiet stop. Time is 1.5-2.5hours, temperature 50-90 degree, after quiet stop body strength is 0.15-0.18Mpa;
(9) Steam curing cycle time, come in and out autoclave about 0.5hour, steam curing cycle time about is 6 hours/1.6Mpa, total 6.5 hours;
(10) Cement lime fly ash style aerated block raw material proportion.

5. Relevant Raw Material Proportion of Concrete Block Machine:

5.1 Cement lime fly ash style aerated block raw material proportion

name	unit	Cement lime fly ash
flash	%	65-70
cement	%	6-15
lime	%	18-25
gypsum	%	3-5
Aluminum powder paste(600kg/m3)	1/10000	8
Water & material rate		0.60-0.65
Casting system	OC	36-40
Aluminum mixing time	S	30-40

5.2 Cement lime Sand style aerated block raw material proportion

Name	Unit	Cement Lime Sand
Sand	%	55-65
Cement	%	10-20
Lime	%	20-30
Gypsum	%	2-3
Aluminum powder paste(600kg/m3)	1/10000	8
Water & material rate		0.65-0.75
Casting system	OC	35-38
Aluminum mixing time	S	30-40