Small machined sweet potato starch

The method of small-scale mechanical processing of sweet potato white starch is very simple, and can be processed in large quantities, and one family can also produce in small batches. However, it is necessary to use sweet potato varieties with high starch content and use more advanced processing machinery for fine processing. The specific method is as follows:

1. Select a variety of sweet potato varieties with high starch rate, and select starch varieties for making starch, and use starch-based fine varieties of white meat for better. These varieties are grown on sandy soil, hillsides, hills, and low-lying clay lands. The flour production rate is generally 18% to 25%.

2. Selecting advanced processing machines Currently, there are various types and types of potato processing machines on the market, depending on the size of the processing and the amount of processing, the mechanical performance is good, the degree of automation is high, the powder extraction rate is high, and the durability is strong. Strong, easy to operate, easy to use potato refining separator, slag separator, automatic flanging machine, Luohe automatic roll-off machine and other machinery. The small potato refining separator manufactured by Lulong County, Qinhuangdao, can complete the refining and separation at a time and the extraction rate can reach 83%, which is suitable for bulk starch processing.

3. The production of starch sedimentation tank depending on the size of the processing scale, the number of how much, can be used to wipe cement, can also be used brick or soil piled (inside covered with plastic sheeting). It is made into a pool or a machine with multiple pools of starch slurry sedimentation tanks, or a starch precipitation tank for refining starches. Leave the outlet on the pool side.

4. Harvesting sweet potato early in time will reduce the rate of flour production, and late harvest of frozen sweet potato will reduce the rate of flour production. Generally, it is appropriate to harvest in the middle of frosty season and frost fall, and harvesting should be carried out according to the geographical location. The harvested sweet potatoes should be cleaned and processed in time, not to be stored for too long, so as to prevent saccharification from reducing the rate of flour production, and not to reprocess the sweet potatoes stored in the lower cellar.

5. Before cleaning the potato chips, the diseased potatoes, rotten potatoes, and sand and gravel must be removed to prevent mechanical damage in the potatoes. When cleaning, the potato pieces can be washed with water on the cement platform, and the potato pieces can also be placed in cement pools and large cylinders to be cleaned. The mixing of soil will affect the quality of the starch.

6. Slurry grinding, starch separation using 80 to 90 mesh nylon screen, water supply should be sufficient, the smashed filter residue, the slurry into the large pool. The slurry that has flowed into the large pool, after 6 to 7 hours of sedimentation, is discharged from the water outlet to leave behind the starch.

7. After a few times, the sedimentation of the starch accumulated in the large pool in the sedimentation pond of Xiaoluo Kochi was performed after the fermentation of the small hair powder eyes. Replace the machine with a 100 to 120 mesh nylon screen. In the small pond, put the drip water after 6 to 7 hours of sedimentation in a large pool, about 1/3 of the pool volume, then re-shatter the starch in the large pool and re-crush it into the small pool, precipitate for 24 to 36 hours, and release it after precipitation. Above the drowning and surface yellow sticky material, the pure white starch is left. If dirt is found in the starch layer in the tank, it must be re-filtered.

8. The starch that can be dried in a timely manner in a small pool can be loaded into a powder pocket made of 120 mesh nylon mesh 1 meter square, and then hung up and suspended, and the slurry is filtered and filtered to form a mortar. Dried in time, stored in bags, or for sale.

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