The large and medium-sized sweet potato starch processing equipment produced by the company adopts a purification cyclone production line, an airflow collision drying equipment, and a complete set of production lines with a daily output of 5 tons of starch, 10 tons of starch, 20 tons of starch, 30 tons of starch, 50 tons of starch, and 10 tons of starch for sale. It now has a complete set of production and manufacturing equipment testing equipment (all large conversion equipment undergoes dynamic balance testing).
Main equipment and process flow for sweet potato starch processing:

Sweet potatoes → (cleaning conveyor) → cleaning (cleaning cage) → crushing (hammer mill or file mill) → slurry separation (pressure curve screen or centrifugal screen, slurry separation circular screen) → desanding (desander) → protein fiber separation (disc separator, concentration and purification cyclone unit) → dehydration (centrifuge or vacuum dehydrator) → drying (low-temperature low tower airflow collision starch dryer) → packaging and storage.

Processing flow of sweet potato starch

2、 Automatic crystal vermicelli production line
Process flow: Preheating → Spiral stirring (constant temperature storage) → Vacuum stirring → Scraper cutting and forming → Steaming (steam) → Cooling → Separation → Room temperature aging → Low temperature aging (cold storage) → Vertical cutting → Low temperature high air volume shaping and drying → Cooling (cold air intake) → Fixed length cross cutting → Packaging.

Processing process of sweet potato vermicelli

Introduction to the main equipment of sweet potato starch processing production line

1. Cleaning and conveying feeding: For small ones, use secondary cleaning and conveying. For larger scales, three-level cleaning is used. In order to clean the raw materials thoroughly, a cleaning cage or a stone removal machine must be used to remove impurities such as sediment, stones, and iron objects. This can also achieve the goal of saving manpower and water resources.
2. Crushing: Fresh potatoes are crushed once using a file grinder or hammer crusher. The crushed particles are moderate, the starch particles are large, the quality is good, and the yield is high or low. Different specifications of equipment can be selected according to needs. It is a hammer crusher with good durability, low damage, and easy maintenance.

3. Desanding: Nowadays, a considerable number of small factories have developed from manual workshop production. Starch has a high sand content and poor taste, which affects the sales volume and price of starch, and dampens the enthusiasm of producers. Using our desander for desanding can remove sand from starch at once, improving product quality. This equipment is easy to use and has obvious effects, which can reduce the sand content of starch to below 0.3%, while the desanding process is continuous.

4. Slurry separation: Slurry separation is an important step in starch production, and this process and crushing process determine the yield of starch. Our factory puts ourselves in the shoes of the receiving party and has designed and produced a series of slurry separation equipment from small to large. In terms of small size, due to various objective conditions such as site and economic conditions, as well as production scale, it is necessary to produce more while saving costs and ensuring clean separation of pulp and slag. Therefore, a horizontal extended horizontal screen is both economical and practical. Even medium-sized manufacturers have been using centrifugal screens (with a speed of 1800-2000 revolutions per minute), which use the centrifugal force generated by high-speed rotation to separate pulp and slag. Large scale manufacturers have further improved the separation effect of slurry and slag by using stainless steel pressure curved screens and vertical centrifugal screens.

Sweet Potato Starch Cyclone

5. Protein separation: In the processing of sweet potato starch, the proteins contained in sweet potatoes must be separated, and this separation process is called purification in the processing technology. The equipment used is also known as purification equipment. It includes a butterfly separator and a cyclone separator, which are used to separate protein from starch slurry. The dry matter is commonly known as yellow powder. The content of yellow flour in starch is not strictly required in the food industry, while in industrial grade starch, it is quite strict in modified starch. Therefore, in order to produce better starch, purification equipment must be used as a guarantee.
6. Dehydration: There are three types of dehydration: three legged centrifuge, automatic scraper centrifuge, and vacuum filter. Among them, the vacuum filter has excellent performance. It not only works smoothly (3-5 revolutions per minute), but also saves energy and has a good dehydration effect at 35% moisture.

7. Drying: Our company's starch drying equipment is a low-temperature low tower airflow collision starch dryer, which is popular both domestically and internationally. Its characteristics include easy installation, centralized heating, large heat supply, significant energy-saving effect, and low-temperature drying of starch at 50 degrees Celsius. The dried starch is further processed into vermicelli, effectively maintaining the high quality of the product.

Sweet Potato Starch Drying Machine

Automatic Crystal Fan Production Line

The production line of crystal vermicelli (strips) is fully enclosed and automated, from starch entering the machine to finished vermicelli exiting the machine. The entire production process does not use any additives (alum), preservatives, or food coloring, and is pollution-free and pollution-free, fully reflecting the production concept of green, environmental protection, nature, safety, high quality, and nutrition. It can produce various types of crystal vermicelli according to different production areas, market demands, and consumer groups. The products produced have a neat appearance, uniform shape, uniform color, crystal clear and transparent, clean and hygienic, easy storage, and convenient transportation. Resistant to boiling and soaking, with a strong and refreshing taste, it is a nutritious, green, safe, and reassuring food that people pursue for health. The equipment is not affected by weather and seasons during the production process. The yield rate is over 95%. The equipment operates at low speed, with a line speed of around 3.5 meters per minute, making it easy and safe to operate.
2、 Advantages of energy-saving process and automation
1. Automatic vacuum extraction process improves product brightness, reduces bubbles, and is resistant to boiling and foaming.
2. Stainless steel paste scraper molding reduces thickness errors and ensures that product thickness is completely controllable.
3. Steel belt full chain transmission improves the service life and flatness of steel belts, mesh belts (driven by conveyor belts), and powder belts.
4. Aging: Once used at room temperature, closed brake, constant temperature and humidity, natural aging automatically switches to low-temperature aging system.
5. The drying oven adopts multi-layer drying, which improves the heat utilization rate and adds a steam heat exchanger waste heat reuse device, making it more energy-efficient.
6. From raw material input to finished vermicelli output, a closed and programmed operation is adopted.
7. Emissions during production are pollution-free.
3、 Project benefit analysis: (Taking the production line of 10 tons of crystal vermicelli per day as an example)
1. Personnel: 5 people/shift, two shift system, 5 people x 2 shifts x 80 yuan/person ÷ 10 tons=labor cost of 80 yuan per ton
The packaging cost is 120 yuan per ton, totaling 200 yuan
2. Electricity fee: installed capacity of 90kWh, boiler capacity of 27kWh, hourly power consumption (90+27) x 24 hours x 0.75 yuan/kw ÷ 10 tons=210.6 yuan
3. Coal consumption: A 2T boiler is required for a steam consumption of 1.5T/h, with a daily coal consumption of 6.5T. The coal cost is 700 yuan/ton, and the amount is 700 × 6.5 ÷ 10=455 yuan
4. Water volume: 2T/h, water fee 5 yuan/ton, 2 × 24 × 5 ÷ 10=24 yuan
5. Direct production cost: 200 yuan (labor)+210.6 yuan (electricity)+455 yuan (coal)+24 yuan (water=889.6 yuan)
6. Benefit: The direct production process cost plus raw material process cost and packaging material cost is the comprehensive product process cost, and other expenses (depreciation, bank interest, sales expenses, taxes, etc. are calculated according to their respective local conditions).
4、 Infrastructure requirements: 1. Factory design: (low requirement size)
A. 9-10 ton vermicelli production line: 75 meters long, 8 meters wide, and 6 meters high
B、 7-8 ton vermicelli production line: 75 meters long, 7 meters wide, and 6 meters high
C. 4-5 ton vermicelli production line: 50 meters long, 7 meters wide, and 6 meters high
D、 2-3 ton vermicelli machine production line: 40 meters long, 7 meters wide, and 6 meters high
2. The indoor floor is flat and can be secured with foot screws;
3. Ventilation and transparency, no dust pollution, convenient water supply and drainage, equipped with water, electricity, and steam that match the equipment.
5、 Pre sales and after-sales service of the company
Our company produces crystal vermicelli machine, noodle machine, flour machine, Hot dry noodles, Rice noodles machine, potato starch equipment, wheat starch equipment, airflow dryer and other equipment, all of which provide customers with pre-sales services such as plant layout design, market analysis, feasibility study report, etc. Company installation technicians go to the user's site to install and test the machine, ensuring the quality of the entire machine installation; Train technical operators for users to be able to operate and produce normally; Establish user profiles and track services at any time. The company provides year-round tracking services for the operation status of sold equipment, user needs, and opinions. Any problems found are promptly resolved by the company's technical personnel on-site; The equipment is guaranteed for one year from the date of self debugging, and long-term after-sales services such as supplying various accessories on the equipment (charging a cost) are provided.

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