Doing Company starch extraction technology developed
Recently, to make sure the starch yield reach to more than 94%, our starch processing machine technology developed, after this, our technology of starch extraction and production is no less than that of Europe, for the potato. sweet potato, and cassava starch extraction, the production process is similar, except the cleaning machine, the main machine adopted include the rasping machine, centrifugal sieve, fine fiber sieve, desanding machine, hydrocyclone, vacuum filter, flash dryer and starch sieving machine. This insist the one complete set of potato /sweet potato /cassava starch production line which is the most popular and most advanced technology for starch extraction. To guarantee the high yield and high quality, these machines all details design has been developed, below is the divided description of our new type machine(adopt potato as example):
Our engineer explain the new technology to our customer
1. Rasping machine: for raw material crushing to get starch slurry, different with the traditional hammer type or knife type crusher, this rasping machine can fully destroy the potato cell wall and the fiber, free the starch which is combined in the cell wall and fiber entirely. High crushing rate to transfer the combined starch to free starch, because of many starch was locked in the cell, this rasping machine adopted can fully free the starch, which is important to improve the starch yield.
2. Centrifugal sieve: it's screen mesh aperture more fine, high speed and longer time for the starch slurry and potato residue seperating, resonable progression make the extraction rate of starch is higher and extrication starch is least in potato residue. For another, compared with the previous trapezoid belt, our new technology design adopt the tooth belt which can fully cover the bearing, with long service life and large transmission coefficient
3. Fine fiber sieve: Weave a web of warp and weft in shape and slender hole, different with the centrifugal sieve, this is the low speed sieving, guarantee the small fine fiber sieve, because the rasping machine crushing effect is better,there are more fine fiber, so this design fine fiber sieve can make sure to remove the little fiber and other small impurities.
Machine for starch slurry washing
It's worth to say that our centrifuge sieve and fine fiber sieve all equipped with the back flush system, make sure the screen is not blocked, then guarantee the whole starch production is continuously. This back flush system is automatic control, save water.
4. Hydrocyclone: this hydrocyclone station function is for starch slurry washing, concentrating and recovering, each degree have its own function, the front stages of the hydrocyclone station can drain the non-starch liquid and recycle liquid containing small amounts of starch, avoid the starch loss, then flow stages can washing and concentrating the starch slurry to get clean starch liquid. Compared with the disc separator, the full hydrocyclone process can guarantee the continuity of the starch production.
5. Dewatering process: this section adopt the vacuum filter, the water collected in the dewatering section can be transferred to the front section. On the one hand, it is used for water recycling. On the other hand, it can prevent a small amount of starch from escaping then ensure the starch yield.
On the other side, our machine all equips with optibelt and SKF bearings, the starch production line adopts a fully closed system, which does not touch the air and the materials are not oxidized to ensure the whiteness of starch. No chemicals are added in the production process by our technology, no harmful substances are produced, starch whiteness can reach to more than 94%, and the starch products quality meet European health standards.
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