1.Raw material storage and treatment

2.Batching, mixing and casting

Lime, cement and gypsum powder are separately conveyed by single-tube feeder at the bottom of storage silo into electric scale for powder material. After accumulated measuring, they are conveyed into casting mixer by discharge device on scale.

After the valve under the slurry tank opens, the fly ash slurry is directly put into slurry electric scale in batching plant for accumulated measuring. When the slurry weight reaches the requirement of batching, the automatic-control system will close discharge valve of slurry pump Measured slurry is directly put into casting mixer for mixing according to the instruction.

After manually measuring, aluminum powder is poured into aluminum powder mixer to make into suspension. Make once for one mould. The mixed suspension is directly put into casting mixer.

The slurry's temperature should reach requirement for technology before casting. If temperature is not enough, steam shall be used here to heat. When casting, moulds are carried by ferry push car to be in place under casting mixer for casting. 

3.Cutting and grouping

After stopping and maintaining to reach cutting strength, and is lifted by turning toplift of turn hoist (16t) and turned onto stationary support of cutter, to make the green blocks headstand when demoulding. Horizontal cutting and cross cutting will be done by cutting device to finish cut work.

 The grouped green blocks together with side board will be lifted by semi-finished toplift of load hoist(8t) before autoclave to trolley before autoclave. One trolley three mould. The stacked trolleys are pulled by slow-motion windlass to the railway before autoclave for grouping. Put six trolleys on every railway.

4.Steam curing&finished product

The grouped green blocks are pulled into autoclave by slow-motion windlass for steam curing. The constant voltage curing time is about 7.5 h with pressure of 1.3Mpa and temperature of about 190℃.

After steam curing, the products are pulled out of autoclave by windlass and lifted onto transport trolley by toplift for out of autoclave and then delivered out of factory or  transported to stock dump for storage..

5.Motherboard returning and mould-grouping&oiling

After lifting the finished products, curing trolley and motherboard are lifted by finished product toplift to trolley returning line and return to one side of cutting machine. The toplift hangs motherboard, at the same time, it hangs mould frame and motherboard for mould-grouping and then returns to put moulds on mould returning railway for cleaning and oiling and then do circulation casting.