Extraction of starch from sweet potato solution

Sweet potato, as a high quality starch raw material, is widely used in extraction of starch from sweet potato industry. With the development of sweet potato starch industry, sweet potato starch processing technology and sweet potato starch processing machine have been updated to meet higher market standard. As a professional manufacturer of sweet potato starch processing machine, our sweet potato starch processing technology is the result of our company's many years of experience and the efforts of our engineers.

Extraction of starch from sweet potato

1. Pretreatment of sweet potato
a. Sweet potato weighing and conveying: This is the first step for extraction of starch from sweet potato process. The sweet potatoes are weighed on the weighbridge and stored in the sweet potato yard. Then the raw materials are transported by conveyor to the sweet potato cleaning and washing machine where the stones, sand and other attached objects are separated.

b.Cleaning and washing: In extraction of starch from sweet potato process, the main purpose of this process is to remove the sediment from the outer cortex of sweet potatoes and wash the epidermis of sweet potatoes. The fresh sweet potato is cleaned in dry sieve in which the impurities are cleaned such as sand and small stones. Then we use the rotary washing machine for removing the soil, sand and other impurities. This process is the basis of guarantee the quality of starch, the cleaner the raw sweet potatoes are cleaned, the better the starch quality is in sweet potato starch processing plant.

Sweet potato washing machine

2. Starch extraction process
a. Crushing: The role of crushing is to destroy the structure of sweet potato, so that tiny starch granules can be disintegrated and separated from the roots of sweet potato. In extraction of starch from sweet potato process, the widely used crushing machine is rasper. The machine relies on high-speed operation to disintegrate sweet potato so that the starch granules are continuously separated.  And the disintegrated sweet potato is processed into starch slurry by using water as a medium.

b. Separating: Separating section is another key process for extraction of starch from sweet potato that affects the extraction rate of sweet potato starch. Its main purpose is to separate the fiber from starch.And normally we use multi stage centrifuge sieve for the separating process so as to achieve better separating effect.

c. Protein separation: In this process, we designed a 14-stage concentrated hydrocyclone station for extraction of starch from sweet potato. And the process water is pumped from the other end of the sweet potato starch machine to wash the starch in a countercurrent manner. The multi-stage washing can ensure the washing effect of the cyclone station, better remove the impurities such as fiber and protein contained in the starch milk.

Sweet potato starch dewatering machine

3.Starch dehydration and drying process
a. Dehydration: The dewatering process  for extraction of starch from sweet potato is mainly for reduce the water content of the wet starch. By adopting negative press principle, vacuum filter can effectively reduce the water content of starch so that it can be dried in the  flash dryer. After dewatering, the water content of starch milk first should be about 38%-40%.

b. Drying and packing: The wet starch dehydrated by vacuum filter is transferred to flash dryer for drying. It is required the moisture content of the finished starch is about 13.5% after drying process for extraction of starch from sweet potato. Then the starch is packed for storage. And this process requires a sufficient number of bags, a firm package, and timely storage.



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How to extract starch from sweet potato ?

A entire how to extract starch from sweet potato process is composed of the following process:
receiving-cleaning-washing-grinding-separating-concentration and refining-dewatering-drying and packing

How to extract starch from sweet potato 

1. Pretreatment of raw material
The pretreatment of raw material includes the raw material receiving, cleaning and washing section:
a. Raw material receiving section: Raw materials are the material basis of how to extract starch from sweet potato. The quality of raw materials is directly related to the quality of products. Therefore it will be better to choose high quality raw sweet potato without damage.

b. Sweet potato cleaning section: how to extract starch from sweet potato requires the raw material be cleaned thoroughly. For the cleanness of raw material has an influence on the following separation and purification of sweet potato starch. Dry sieve is used for cleaning process which can effectively remove the sand, soil, weed and other debris.

Sweet potato washing machine

c. Sweet potato washing section: The washing process is carried out by paddle washing machine for how to extract starch from sweet potato. sweet potato raw material is rolled along with the wall of the cylinder, and is sprayed, washed, bathed, mixed, and peeled with water as a medium for extraction of starch from sweet potato.

2. Extraction of sweet potato starch
a. Grinding section: The grinding unit is one of the most important part for how to extract starch from sweet potato which determines the sweet potato starch extraction rate. High-efficiency grinding machine allows the starch granules in sweet potato cells to be completely released, ensuring that the combined starch content in the sweet potato residue is minimized. DOING rasper is a high efficient machine which fully absorbs international advanced technology and has the features of high extraction rate and high grinding rate.

b. Separating section: Separating section is another key process for how to extract starch from sweet potato that affects the extraction rate of sweet potato starch. Its main purpose is to separate the fiber from starch. And the widely used separating machine includes centriguge sieve and fine fiber sieve. Good centrifugal sieve and centrifugal technology can allow the extraction of free starch from cassava cells.

c. Concentration and refining section: This process is for the concentration, recycling and refining of the starch milk. To ensure a better washing effect, DOING how to extract starch from sweet potato adopts 13-stage hydrocyclone station which can better remove the impurities of fiber, protein and other impurities contained in the starch milk. In this way, all the indicators of starch produced can be guaranteed to meet the standards.

Sweet potato starch dewatering machine 

3. Dewatering and drying of sweet potato starcha. Dewatering section: For how to extract starch from sweet potato, the main function of this section is to dewater the refined starch. Due to the high water content of refined starch, it need to be dewatered in vacuum filter so as to reach the desired quality for the next drying section. As a high efficient machine, vacuum filter has the features of high dehydration rate, energy saving and stable operation.

b. Drying and packing section: The wet starch is then conveyed into air flow flash dryer for frying. The steam pressure is controlled at 0.8 MPa. The how to extract starch from sweet potato requires that the moisture content of the finished starch is about 13.5% after drying. Packing and warehousing requires a sufficient number of bags, and timely packing for storage.


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sweet potato starch machine
sweet potato starch processing plant
sweet potato starch production in Nigeria
how to make starch from sweet potato

Sweet potato starch processing plant and sweet potato starch machine

A entire production process of sweet potato starch processing plant is composed of the following process:
Choosing and receiving-cleaning and washing-cutting and crushing-separating-concentration and refining-dewatering-drying and packing

Sweet potato starch processing plant

Here is the detail analysis of DOING sweet potato starch production line
1. Raw material choosing and receiving:  As the first section for sweet potato starch processing plant, the raw material choosing plays an important role in the final starch quality.  The breaken sweet potato is easy to rot which will influence the other good materials. Therefore it will be better to choose high quality sweet potato without damage, no deterioration and no moth. Then the chosen sweet potatos are hauled to the storage yard after being weighed.

2. Stone removal and cleaning: Clean raw materials play an important role in the process of sweet potato starch processing plant, so the stone removal and cleaning units is the most important in the pretreatment stage of the raw materials. This unit is to completely remove the sand, mud and other foreign materials in the sweet potato. Then the cleaned sweet potato is transported into rotary washing machine for further washing process.

3. Sweet potato washing: The washing process for sweet potato starch processing plant is carried out by paddle washing machine. sweet potato raw material is rolled along with the wall of the cylinder, and is sprayed, washed, bathed, mixed, and peeled with water as a medium.

Sweet potato crushing machine

4.Cutting and crushing: Due to the size of the sweet potato, it need to be cut into small pieces before crushing so that the crushing process can be easier. Crushing is a vital sweet potato starch machine for sweet potato starch processing plant because it determines the extraction rate of starch. Doing Company independent research and development of high efficient crusher which can obtain higher percentage of free starch. After crushing, the sweet potato is crushed into starch slurry.

5. Separating: Separating section is another key process for sweet potato starch processing plant that affects the extraction rate of sweet potato starch. Its main purpose is to separate the fiber from starch. And the widely used separating machine includes centriguge sieve and fine fiber sieve. Good centrifugal sieve and centrifugal technology can allow the extraction of free starch from cassava cells.

6. Concentration and refining: Concentration and refining is another most important unit of sweet potato starch processing plant, and the quality starch are completely guaranteed in the cyclone refining unit. The impurities in the starch slurry are completely removed by physical means so as not to affect the quality of the starch product. The 13-stage washing can ensure the washing effect of the cyclone station, which can better remove the impurities such as fibers and proteins contained in the starch milk, and ensure that there is no impurity in the starch milk coming out from the cyclone station.

Sweet potato starch refining machine

7. Dewatering: After concentration and refining process, the concentrated starch milk still contains a large amount of water, and thus must be dehydrated to facilitate drying for sweet potato starch processing plant. It is required that the wet starch has a low moisture content of 38% after dehydration.

8. Drying and packing: Then it is the drying and packing process for sweet potato starch processing plant. In sweet potato starh production line, factory usually use flash dryer for drying of starch. The high speed hot air fully mixed with wet starch, by heat exchanging, the wet starch is dried. The whole drying process is completed in an instant. After that, the collected starch is packed into 25kg or 50kg finished products.



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sweet potato starch machine
sweet potato starch production in Nigeria
extraction of starch from sweet potato
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Sweet potato starch machine

The production process of sweet potato starch is a physical separation process, which is to separate the starch from cellulose, protein, inorganic substance and so on. By by taking use of the proprety that starch is insoluble in cold water and is heavier than water in proportion, we use special mechanical sweet potato starch machine to separate starch from water suspension to achieve the purpose of recovering starch. The Doing Company sweet potato starch machine can automatically complete the whole process of cleaning, washing, crushing, separating, concentration and refinement, dehydration, drying and packaging of sweet potato.

Sweet potato starch machine 

1. Sweet potato cleaning machine: The  sweet potato starch processing technology requires the raw material be cleaned thoroughly. For the cleanness of raw material has an influence on the following separation and purification of sweet potato starch. Dry sieve is widely used sweet potato starch machine for cleaning process which can effectively remove the sand, soil, weed and other debris.

2. Sweet potato washing machine: The washing process is carried out by paddle washing machine. Sweet potato raw material is rolled along with the wall of the sweet potato starch machine, and is sprayed, washed, bathed, mixed, and peeled with water as a medium.

3. Cutting and crushing machine: Due to the size of the sweet potato, it need to be cut into small pieces before crushing so that the crushing process can be easier. Crushing is a vital process in sweet potato starch production line because it determines the extraction rate of starch. Doing Company independent research and development of high efficient sweet potato starch machine for crushing which can obtain higher percentage of free starch. After crushing, the sweet potato is crushed into starch slurry.

Sweet potato crushing machine

4. Separating machine: Separating section is another key process in hot sale sweet potato production line that affects the extraction rate of sweet potato starch. Its main purpose is to separate the fiber from starch. And the widely used sweet potato starch machine for separating includes centriguge sieve and fine fiber sieve. Good centrifugal sieve and centrifugal technology can allow the extraction of free starch from cassava cells. And normally we use multi stage centrifuge sieve for the separating process so as to achieve better separating effect. The fine fiber sieve is a low speed centrifugal device which is mainly for the separation of fine fiber from starch.

5. Concentration and refining machine: Instead of traditional precipitation process, the concentration and refining process can separate non-starch substances with high efficiency, thus to improve the quality and whiteness of sweet potato starch. And hydrocyclone station is the widely used sweet potato starch machine in sweet potato starch production line for this purpose. Hydrocyclone station can effectively separate non-starch substances such as protein, fiber and cell sap in starch.

6. Dewatering machine: The dewatering process is mainly for reduce the water content of the wet starch. By adopting negative press principle, this sweet potato starch machine can effectively reduce the water content of starch so that it can be dried in the  flash dryer. After dewatering, the water content of starch milk first should be about 38%-40%.

Sweet potato starch refining machine

7. Drying and packaging machine: The purpose of this section is to dry the dehydrated starch to the desired moisture content to meet market standard. The air is heated to the required temperature through the filter net through the heat exchanger, and the hot air is sucked into the flash dryer by the fan. Then the high speed hot air mixes with the wet starch and dry the starch by heat exchange. The air and starch are separated in the cyclone separation device. The air is discharged out of the sweet potato starch machine while the starch is transported into the packing machine. Then the final sweet potato starch is packed by semi-automatic machine for storage.

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Related:
sweet potato starch processing plant
sweet potato starch production in Nigeria
extraction of starch from sweet potato
how to make starch from sweet potato

Extraction of starch from sweet potato processing line

Sweet potato starch is one of the main products of sweet potato processing. The extraction of starch from sweet potato process can automatically complete the whole process of cleaning, washing, crushing, rasping, separation, concentration and refinement, dehydration, drying and packaging of sweet potato.

Sweet potato & sweet potato starch 

1. Cleaning and washing: For extraction of starch from sweet potato, the first step is cleaning. Cleaning process is for removing the stone, seed and dirt of sweet potato. Dry sieve is mainly used for this purpose in sweet potato starch production line. Then the potato need to be washed in rotary washing machine. After the two process, the sweet potato is completely and thoroughly washed.

2.Cutting and crushing: After cleaning and washing process, the sweet potato is converted to the sweet potato starch processing machine for cutting. The main purpose of cutting sweet potato is to make the crushing easier for extraction of starch from sweet potato. By cutting the sweet potato into small pieces, it not only make the crushing more thoroughly but also reduce the possible damage caused to the rasper machine. After cutting, the broken pieces goes into the crushing machine. The extensively used crushing machine is rasper. As an important sweet potato starch processing machine, DOING rasper adopts Sweden SKF and Germany Optibelt technology which offers high crushing efficiency and longer service life.

3. Starch slurry screening: starch slurry is also an important procedure for extraction of starch from sweet potato. By sieving, the purpose of separating and purifying starch is achieved. To achieve better screening effect, multiple screening or countercurrent washing processes are adopted throughout the process.

Sweet potato crushing machine

4. Desanding: After the separating section, the starch slurry still contains sand which need to be removed by desander machine. The function of desander in extraction of starch from sweet potato is to fully remove the fine impurities in starch so as to ensure the taste and quality of starch.

5. Concentration and refining: After the separation section, the sweet potato slurry need to be further refined. This process mainly removes the protein, fine fiber and cell sap. In this process of extraction of starch from sweet potato, the mainly used machine is hydrocyclone station. A full hydrocyclone technology includes the concentration, refining and recycling.

6. Dehydrating: The dehydrating is used to reduce the water content of cassava milk so that is can be dried. Vacuum filter take use of negative pressure to achieve the purpose of dehydrating for extraction of starch from sweet potato. The starch milk is sucked onto the drum, and the filtrate is sucked into the filtrate separation tank and pumped away by the filtrate pump. The filter cake is scraped down by the scraper and transported into the feed hopper of the starch drying machine with food-grade conveyor belt.

Sweet potato starch dewatering machine

7.Drying: The dewatered starch need to be dried to meet the standard starch for extraction of starch from sweet potato. This sweet potato starch machine is called flash dryer. The flash air utilizes the high speed hot air to dry the starch which is complete in seconds. DOING flash dryer has the advantages of fast drying speed, high efficiency, high equipment production capacity and low equipment cost.

The above is the complete introduction of extraction of starch from sweet potato of Doing Company. The sweet potato starch production line has the characteristics of large processing capacity and short production cycle. The raw material takes only less than thirty minutes from cleaning to finished product, effectively avoiding the pollution of dust and microorganisms, improving product production efficiency and product quality. Should you have any further question about the new technology, welcome to contact us.

Click here to give you the best price
Whatsapp/Phone:+86 135 2661 5783
Email: market@doinggroup.com
Tel: 0086 371 5677 1822
View more:
sweet potato starch machine
sweet potato starch processing plant
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how to make starch from sweet potato

Sweet potato starch processing plant

The following is the introduction of DOING production process in sweet potato starch processing plant
Cleaning and washing-cutting and rasping-separating-concentration and refining-dehydrating-drying and packing

Sweet potato starch processing plant 

1. Cleaning and washing section: The sweet potato is firstly be cleaned in dry sieve to remove the sand, weed and other dirty materials. The dry sieve is a high effective sweet potato starch machine which will not damage the raw material. And the washed sweet potato is transported into rotary washing machine to further wash the attached impurities, such as soil and sand in sweet potato starch processing plant. This washing machine adopts countercurrent washing principle which can ensure the raw material be washed cleanly and thoroughly.

2. Cutting and crushing section: After cleaning and washing process, the sweet potato is converted to the sweet potato starch processing machine for cutting. The main purpose of cutting sweet potato is to make the crushing easier. By cutting the sweet potato into small pieces, it not only make the crushing more thoroughly but also reduce the possible damage caused to the rasper machine. After cutting, the broken pieces goes into the crushing machine. The extensively used crushing machine is rasper in sweet potato starch processing plant.

3. Starch slurry screening section: Starch slurry is also an important procedure in sweet potato starch processing plant. By sieving, the purpose of separating and purifying starch is achieved. To achieve better screening effect, multiple screening or countercurrent washing processes are adopted throughout the process.

Sweet potato crushing machine 

4. Concentration and refining section: The function of this process is to remove insoluble protein and residual soluble protein and other impurities from the starch slurry, thereby achieving the purpose of washing, refining and concentrating the starch milk. At present, the hydrocyclone station is commonly used for washing, refining and concentrating in sweet potato starch processing plant. According to the different specific gravity of water, starch and yellow pulp protein, this machine can effectively remove the impurities.

5. Dewatering section: The moisture content of the starch milk coming out from the cyclone station is too large to be directly dried in sweet potato starch processing plant. Therefore, the starch milk should be dehydrated first, so that the moisture content of the starch is about 40%. The starch milk is pumped into the vacuum filter tank, and the vacuum pump forms a negative pressure in the vacuum drum. When the starch milk is in contact with the vacuum drum, the starch is sucked on the drum surface and  is scraped off by a scraper. While the filtrate is sucked into the filtrate separation tank, pumped away by the filtrate pump.

Sweet potato starch drying machine 

6. Drying and packing section: The final process in sweet potato starch processing plant is the drying and packing. The dehydrated starch cake is transported to the feed inlet of the flash dryer through the conveyor belt and enters the hoist through the feeder. The wet starch is heated by the high speed hot air and the water is evaporated. Finally, the dried starch is then transported to semi-automatic packaging machine and packaged into finished products.



Chat online (inquiry)
Whatsapp/Phone:+86 135 2661 5783
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Related:
sweet potato starch making machine
sweet potato starch production in Nigeria
extraction of starch from sweet potato
how to make sweet potato starch

Sweet potato starch making machine

Sweet potato starch is one of the main products of sweet potato processing. Nowadays, the extraction of starch from sweet potato is normally completed by sweet potato starch making machine. Doing Company is a professional starch deeply processing equipment manufacturer, the sweet potato starch making machine can automatically complete the whole process of cleaning, washing, crushing, rasping, separation, concentration and refinement, dehydration, drying and packaging of sweet potato.

Click here to see VIDEO for sweet potato starch processing plant operation

Sweet potato starch making machine 

1. Cleaning and washing machine: For extraction of starch from sweet potato procedure, the first sweet potato starch making machine is for cleaning. Cleaning process is for removing the stone, seed and dirt of sweet potato. Dry sieve is mainly used for this purpose. Then the potato need to be washed in rotary washing machine. After the two process, the sweet potato is completely and thoroughly washed.

2.Cutting and crushing machine: After cleaning and washing process, the sweet potato is converted to sweet potato starch making machine for cutting. The main purpose of cutting sweet potato is to make the crushing easier. By cutting the sweet potato into small pieces, it not only make the crushing more thoroughly but also reduce the possible damage caused to the rasper machine. After cutting, the broken pieces goes into the crushing machine. The extensively used crushing machine is rasper. As an important sweet potato starch processing machine, DOING rasper adopts Sweden SKF and Germany Optibelt technology which offers high crushing efficiency and longer service life.

3. Separation machine: This section is mainly used for separating fiber. The mainly used sweet potato starch making machine includes centrifuge sieve and fine fiber sieve. The centrifuge sieve is mainly used for removing fiber and fine fiber sieve is for further removing fine fiber.  This is also an important procedure of extraction of starch from sweet potato.

Sweet potato starch separating machine 

4. Concentration and refining machine: The starch slurry from the desander unit is transferred to the multi-stage concentration and refining unit. In sweet potato starch processing plant, hydrocyclone station is mainly used sweet potato starch making machine for this process. The process water is pumped in from the other end of the hydrocyclone station to wash the starch in a countercurrent way. Usually a full process includes the concentration, recycling and refining of starch milk.

5.Dewatering machine: Even after the concentration, the water content in the starch milk in still high. The vacuum filter is used for the dehydration of the starch milk. The vacuum filter is a continuous running sweet potato starch making machine which using the moving filter cloth as the filter medium and using the negative pressure and gravity provided to separate the solid from liquid. After the dewatering process, the water content of the starch should below 40%.

6.Drying and packing machine: The dehydrated starch is then transported into flash dryer for drying. The flash dryer is a sweet potato starch making machine takes use of negative pressure principle which effectively controls the loss of the starch and ensures cleaning operation environment.

Sweet potato starch drying machine

The sweet potato starch making machine produced by Doing Company can complete the whole process from the input of raw materials to the production of finished starch. It can also be customized according to the actual situation and special requirements of users. We provide large, medium and small processing lines for extraction of starch from sweet potato with various configurations to meet the needs of different customer groups.


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Whatsapp

Welcome to make an inquiry of our machine by following contacts:
Contact: Ms Elina
Email: market@doinggroup.com                                          
Tel: 0086 371 5677 1822                                                
Whatsapp/Phone:+86 135 2661 5783                                                  
View more:
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cassava starch machine

China sweet potato starch machine for sale

The following is the introduction of our production technology and main sweet potato starch machine for sweet potato starch processing plant
Cleaning and washing-cutting and rasping-separating-concentration and refining-dehydrating-drying and packing

Sweet potato starch machine

1. Cleaning and washing machineThe sweet potato is firstly be cleaned in dry sieve to remove the sand, weed and other dirty materials for how to make sweet potato starch. The dry sieve is a high effective sweet potato starch machine which will not damage the raw material. And the washed sweet potato is transported into rotary washing machine to further wash the attached impurities, such as soil and sand. This washing machine adopts countercurrent washing principle which can ensure the raw material be washed cleanly and thoroughly.

2. Rasping machine
This sweet potato starch machine is the key machine in the extraction of starch from sweet potato. In this process, the sweet potato is crushed into slurry. And the bound starch in sweet potato turns to free starch. And the extraction rate of sweet potato determines the final starch yield. DOING rasper is an advanced rasping machine with high rasping rate and high extraction rate.

 Sweet potato rasping machine

3. Separating and desanding machine
After crushing, the fiber, protein, cell sap and other materials are released from cell wall. Therefore the separating is needed to separate starch from fiber and other impurities. Separating process mainly remove fiber from starch. And the mainly used sweet potato starch machine contains centrifuge sieve and fine fiber sieve which remove fiber and small fiber respectively. After that, the sweet potato starch slurry is pumped by a screw pump into a desander to remove sand particles.

4. Concentraction and refining machine
After a series of separating process, the fiber is almost removed. Then it is concentration and refining process. Hydrocyclone station is the mainly used sweet potato starch machine in these process. The function of hydrocyclone station is to remove the fine fibers, protein and cell sap out of starch milk so as to achieve the purpose of concentration and refining. Hydrocyclone station is composed of a series of hydrocyclone which can remove the impurities better. which ensures the final product meet the standard.

Sweet potato starch dewatering machine  

5. Dehydration machine
In the process of extraction of starch from sweet potato, the purpose of dehydration is to reduce the water content of sweet potato milk. And vacuum filter is mainly used sweet potato starch machine for this process. After dehydration by DOING vacuum filter, the moisture content of wet starch is around 38%.

6. Drying and packing machine
 The next sweet potato starch machine in sweet potato starch production plant is flash dryer. The dehydrated starch cake is transported to the feed inlet of the flash dryer through the conveyor belt and enters the hoist through the feeder. The wet starch is heated by the high speed hot air and the water is evaporated. Finally, the dried starch is then transported to semi-automatic packaging machine and packaged into finished products.


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Tel: 0086 371 5677 1822

Related:
Sweet potato starch processing machine
Isolation of starch from sweet potato
Sweet potato starch preparation
How to extract starch from sweet potato

How is sweet potato starch made?

The process for how is sweet potato starch made is a physical separation process, which separate the starch from the fiber, protein and other impurities by sweet potato starch processing machine. The process of sweet potato manufacturing mainly includes the following part:
sweet potato choosing-cleaning-washing-cutting and crushing-separating-concentration and refining-dewatering-drying-packing

How is sweet potato starch made

Accordingly, here is the sweet potato starch machine used for how is sweet potato starch made
dry sieve for cleaning-rotary washing machine-cutting machine-rasper for crushing-centrifuge sieve and fine fiber sieve for separating-hydrocyclone station for concentration and refining-vacuum filter for dewatering-flash dryer for drying

1. Cleaning and washing: The sweet potato is firstly be cleaned in dry sieve to remove the sand, weed and other dirty materials for how is sweet potato starch made. The dry sieve is a high effective washing machine which will not damage the raw material. And the washed sweet potato is transported into rotary washing machine to further wash the attached impurities, such as soil and sand. This sweet potato starch machine adopts countercurrent washing principle which can ensure the raw material be washed cleanly and thoroughly.

2. Cutting and crushing: After washing, the sweet potato is firstly cut into small pieces so that it can be crushed fully. After cutting, the sweet potato is crushed into slurry for further processing. Crushing plays an important role for how is sweet potato starch made for it determines the starch yield. DOING rasper is a high efficient sweet potato starch machine with high rasping coefficient and high extraction rate.

Sweet potato cleaning machine 

3.Starch and residue separating: After crushing, the sweet potato slurry includes many fiber, protein, cell sap and other impurities for how is sweet potato starch made. They need to be separated from starch in extraction of starch from sweet potato. And in this process, centrifuge sieve and fine fiber sieve are mainly used sweet potato starch machine. The centrifuge is used to separate the fiber and starch by using the high speed centrifugal force. While the fine fiber sieve is low speed sieve which is mainly used for the separation of the small fiber. Normally in order to separate the impurities better, the centrifugal process will repeat several times.

4. Concentration and refining: After the separation section, the sweet potato slurry need to be further refined for how is sweet potato starch made. This process mainly removes the protein, fine fiber and cell sap. In this process, the mainly used sweet potato starch machine for the extraction of starch from sweet potato is hydrocyclone station. A full hydrocyclone technology includes the concentration, refining and recycling.

5. Starch milk dehydration: In the process of how is sweet potato starch made, the purpose of dehydration is to reduce the water content of sweet potato milk. And vacuum filter is mainly used sweet potato starch machine for this process. After dehydration by DOING vacuum filter, the moisture content of wet starch is around 38%.

Sweet potato starch separating machine 

6. Drying and packing: The final process about how is sweet potato starch made is the drying and packing. The dehydrated starch cake is transported to the feed inlet of the flash dryer through the conveyor belt and enters the hoist through the feeder. The wet starch is heated by the high speed hot air and the water is evaporated. Finally, the dried starch is then transported to sweet potato starch machine for packaging.

The whole production process for how is sweet potato starch made adopts Doing Company's new automatic sweet potato starch production line, from fresh sweet potato to starch products are all automated production, high quality, high efficiency, energy saving and labor saving. Should you have any concern about sweet potato starch machine, welcome consult our engineer.


Click here to give you the best price
Whatsapp

Welcome to make an inquiry of our machine by following contacts:
Contact: Ms Elina
Email: market@doinggroup.com                                          
Tel: 0086 371 5677 1822                                                
Whatsapp/Phone:+86 135 2661 5783                                                  
View more:
http://www.starchprojectsolution.com
cassava starch machine