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Corn Starch Processing Machines
We provide corn starch production line with
Capacity of 50-10000ton per day. Steps are as following:


1) Purifying: Before going to storage bin,
Pre-purifying is done to eliminate big and small foreign substance which will
Be sent to germ cake collection section. There is a device near storage bin, it
Has clean, de-stone, de-dust functions. Purified corn is sent to steeping
Section.


2) Steeping: Counter current steeping
Principle is adopted to make corn become soft in steeping tank. Acid is heated
And remains 50° C when circulating in all tanks. Dipped corn is pumped to
Crashing stage, sending to wet corn storage after dewatering.


3) Sulfurous acid making: Sulfur is burned
In furnace, getting SO2 gas, goes to absorption tower with china rings. Water
Is sprayed down, mixed with rising SO2 gas to get sulfurous acid.


4) Crash and germ separation: Steeped corn
Is sent to 1st germ mill from wet corn storage bin. Crashed corn is pumped into
1st germ cyclone and screen, and then goes to 2nd mill for further crush. Germ
Goes to 2nd germ cyclone then back to previous tank.


5) Finely milling and fiber wash, dewater,
Drying: In pin mill, the degermed corn is multi--strongly crashed to remove
Fiber off. Fiber is sent to multi-stage washing screen for recovering the balance
Starch. Cleaned fiber goes to screw presser for dewatering then goes into
Bundle dryer for drying to mix with corn slurry for making animal feed product.


6) Protein separation and starch washing:
Starch milk goes to primary separator for gluten separation. Cleaned starch
Goes to 12 stages cyclones for final washing to remove the tiny foreign items.


7) Starch dewater and drying: Fine starch
Milk is dewatered by peeler centrifuge, the starch is sent to air flow dryer
For making dry starch product in which moisture should be less than 14%.


8) Germ washing, dewater, drying, extraction
Oil and oil refinery: Germs from cyclone go to gravity arc screen for washing,
Dewatering. Washed germs are sent to bundle dryer. Dried germ is fried and
Extracted then oil is filtered. Coarse oil is gotten at the end.


9) Gluten concentration, dewater, drying:
Gluten is concentrated by air floating vessels then goes to vacuum filter for
Further dewatering. Dewatered gluten goes to bundle dryer for making gluten
Meal product.


10) Processing water recovery and steeping
Liquid evaporation: Process water from concentrator, dewater machine which
Contains SO2 and some insoluble material, can be used again to the whole system
Such as steeping and washing. Corn steeping liquid is sent to evaporator for
Concentration then goes to fiber bundle dryer to make mixed animal feed.