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Tapioca starch production line and tapioca starch machine

December 13, 2018 by cassava processing machine  

The tapioca starch production line of Doing Company adopts the wet processing technology of starch production without any additives. The process is operated automatically from the whole process of cleaning, washing, grinding, separating, desanding, concentration and refining, dehydration and drying of raw materials.

cassava starch production line (2)

Tapioca starch production line

The following is the detail introduction of tapioca starch production line
1. Cassava cleaning section
Dry sieve is the firstly used cassava starch processing machine in tapioca starch production line. It meanly remove the dirt, stand, small stones, weeds and other impurities on the surface of the cassav

2. Cassava washing section
Paddle washing machine is the most widely used cassava washing machine whose main function is to further wash the attached dirt, mud, sand, ect in tapioca starch production line. This machine adopts the countercurrent washing principle so that the material can be washed completed and thoroughly.

3. Crushing section
This is the most important step in tapioca starch production line. The rasper is used to crush the cassava into slurry so as to release the free starch in the cassava cell. The extraction rate of starch is determined by this machine. DOING rasper is an advanced crushing machine which fully absorbs technology from home and abroad, and the breakage rate can reach at around 95%.

Paddle washing machine (5)

Cassava washing machine

4. Starch slurry separating section
Starch separating is another key unit for tapioca starch production line which has an important effect on the extraction rate of cassava starch. The good centrifuge sieve and processing technology can extract the free starch from the cassava cells.
Doing Company adopts four-stage centrifugal sieve group can ensure that most of the free starch is collected into the extraction system, which fully guarantees the extraction rate of starch.

5. Desanding section
This process is mainly for remove the sand content out of cassava slurry for it has a bad influence on the taste of cassava starch in tapioca starch production line. The desander utilizes the different specific gravity between the cassava starch and sand to remove the sand.

6. Concentration and refining section
After desanding, the cassava starch enters into hydrocyclone station. This process is mainly used for separate the fiber, protein and cell sap from starch in tapioca starch production line. DOING full hydrocyclone technology can achieve the concentration, recycling and refining of cassava milk.

starch refining hydrocyclone (13)

Cassava starch refining machine

7. Dehydrating section
And the next machine for tapioca starch production line is the peeler centrifuge which is a widely used starch dehydration machine. Due to this cassava starch processing machine absorbs the foreign and domestic advanced technology, it offers high dewatering rate.

8. Drying section
And the drying process is carried out by the principle of negative pressure in tapioca starch production line. The wet starch is mixed with hot air into the air duct, and after entering the drying requirement, it enters the cyclone separator and is then packaged into the storage.

 

 

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Extraction of starch from sweet potato machine

December 12, 2018 by cassava processing machine  

The production of starch from sweet potato 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 equipment to separate starch from water suspension to achieve the purpose of recovering starch. Doing Company extraction of starch from sweet potato can automatically complete the whole process of cleaning, washing, crushing, separating, concentration and refinement, dehydration, drying and packaging of sweet potato.

sweet potato processing line (2)

Extraction of starch from sweet potato

1. Transportation: The sweet potato is transported from the storage yard to the cleaning machine by using a conveyor, and it is required to ensure the sufficient supply of the raw materials in extraction of starch from sweet potato. In the process of transportation, it is necessary to prevent the inclusion of iron, nails, stones, wood and other debris. If debris is found, it should be picked up in time.

2. Sweet potato cleaning: 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 used for cleaning process which can effectively remove the sand, soil, weed and other debris in extraction of starch from sweet potato.

3. Sweet potato washing: The washing process in extraction of starch from sweet potato 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 in sweet potato starch processing plant.

cassava grinding machine (10)

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 process in extraction of starch from sweet potato 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 in 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 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. 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.

6. Concentration and refining: 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 machine in extraction of starch from sweet potato for this purpose. Hydrocyclone station can effectively separate non-starch substances such as protein, fiber and cell sap in starch.

flash dryer (22)

Sweet potato starch drying machine

7. Dewatering: The dewatering process is mainly for reduce the water content of the wet starch in extraction of starch from sweet potato. 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%.

8. Drying and packaging: 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 machine while the starch is transported into the packing machine in extraction of starch from sweet potato. Then the final sweet potato starch is packed by semi-automatic machine for storage.

 

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How to remove starch from potatoes ?

December 11, 2018 by cassava processing machine  

The process of how to remove starch from potatoes can be divided into the following process:
Potato cleaning and washing-crushing-separating-desanding and refining-dewatering-drying and packing

tarch processing plant (3)

Potato starch plant

1. Raw material choosing section
Choosing: The raw materials of potato starch include fresh potato and dried potato chips, which are the main substances for production. In how to remove starch from potatoes, it is required that the raw potato must be fresh. It will be better to purchase, transport and process the fresh raw material on the same day. The chosen raw potato should be no damage, not mildewed, not degraded, and free from insects.

2.Potato cleaning section
Dry sieve is a widely used cassava cleaning machine in how to remove starch from potatoes whose main function is to remove the sand, soil, weed and other impurities from cassava. This machine adopts multiple inner spirals design which achieve the transportation function during cleaning process. It can not only play the function of quantitative conveyance, but also control the size of material conveyance.

3. Potato washing section
Washing section in how to remove starch from potatoes is carried out by paddle washing machine. 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 in potato starch extraction process.

potato washing machine (2)

Potato washing machine

4. Potato crushing section
The process of how to remove starch from potatoes emphasize grinding as one of the most important working procedure in potato starch processing, it relates to the fresh potato starch yield and quality of starch. Therefore the grinding process requires to break potato cell as much as possible to release more free starch granules.

5.Starch and slag sepateting section
The crushed photo contains fiber, protein and other impurities, therefore it need to separate the starch from the impurities. Centrifuge sieve is mainly used machine to separate the fiber and starch slurry. The slurry separation is also an important process in how to remove starch from potatoes which determines the yield of starch. Therefore this process need to be repeat several times to improve the potato starch content.

6. 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 how to remove starch from potatoes. According to the different specific gravity of water, starch and yellow pulp protein, this machine can effectively remove the impurities.

dav

Potato starch refining machine

7. Starch milk dewatering section
After that, the potato starch need to be dewatered in how to remove starch from potatoes. Vacuum filer is the main machine for this process. It take use of negative pressure principle. When working, the starch is adsorbed on the filter cloth of the drum and is scraped off by the fixed scraper. While the filtrate enters the separator, so as to achieve the purpose of separation of starch and water.

8. Starch milk 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 remove starch from potatoes 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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Tapioca processing plant

December 10, 2018 by cassava processing machine  

The tapioca processing plant of Doing Company adopts the wet processing technology of starch production without any additives. The process is operated automatically from the whole process of cleaning, washing, grinding, separating, desanding, concentration and refining, dehydration and drying of raw materials.

OLYMPUS DIGITAL CAMERA

Tapioca processing plant

Here are the detail introduction of machines used in tapioca processing plant:
1. Cassava cleaning and washing process
The machine used for cassava cleaning and washing in tapioca processing plant includes the dry sieve and rotary washing machine. These machines carry out multi-stage cleaning of raw materials (cassavaes), fully remove the skin sediment and improve the purity of raw materials. These machine features with continuous work without burden, multiple cleaning processes have high cleanliness and low energy consumption.

2.Cassava grinding process
Grinding is an important process in tapioca processing plant. Therefore grinding machine is an important cassava starch processing machinery. DOING raper is an high efficient grinding machine which can fully grind cassava into slurry. This machine adopts bidirectional grinding design which ensures a higher grinding coefficient.

3. Starch and slag separating process
The next cassava starch processing machine used in tapioca processing plant is the centrifuge sieve and the fine fiber sieve. The centrifuge sieve is mainly used to separate the fiber and starch slurry. While the fine fiber sieve is used to further filter the small fibers.

Paddle washing machine (3)

Cassava washing machine

4. Desanding process
This process in tapioca processing plant is mainly for remove the sand content out of cassava slurry for it has a bad influence on the taste of cassava starch. The desander utilizes the different specific gravity between the cassava starch and sand to remove the sand.

5. Concentration and purification process
The main machine of this section is starch cyclone station. The main function of this machine in tapioca processing plant is high efficiency concentration and purification, separation of non-starch substances, improve the quality of starch whiteness. And the main features of this machine is easy operation, convenient maintenance and long service life.

6. Starch milk dewatering process
Cassava dewater machine is mainly used for reduce the water content of cassava starch in tapioca processing plant. The most widely used machine for this process is peeler centrifuge which is a continous operation machine. Afte the dewatering process, the water content of wet starch is about 38%.

starch refining hydrocyclone (12)

Cassava starch refining machine

7. Cassava starch drying process
The finally process in tapioca processing plant is drying process and the machine is flash dryer. The material contact parts of this machine is made of stainless steel which guarantees the high standards of the final cassava starch.

 

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Principle of isolation of starch from potato

December 7, 2018 by cassava processing machine  

The principle of isolation of starch from potato is a physical separation process which means that the starch in the potato raw material is separated from impurities of starch slurry thorough a series of processing procedure. And the production process is divided into weighing and conveying, cleaning, washing, grinding, separation,sand removal, protein separation, dehydrating, drying and packaging.

potato starch processing machine (4)

Principle of isolation of starch from potato

The following is the detail step for principle of isolation of starch from potato
1. Potato pretreatment stage
a. Frsh potato weighing and conveying: This is the first step for principle of isolation of starch from potato. The potatoes are weighed on the weighbridge and stored in the potato yard  of potato starch production plant. Then the raw materials are transported by conveyor to the potato cleaning and washing machine where the stones, sand and other attached objects are separated.

b. Cleaning and washing: In principle of isolation of starch from potato, potatoes are fed through the feed hopper and transported into cleaning machine for removing the small stones, dirt and other debris of raw materials. After stone removal, potatoes are washed in a rotary washing machine. The potatoes are constantly rolling and rubbing in the water, which can make the soil on the potato peel off to achieve a good washing effect. After washing, potatoes are transported to the temporary storage hopper through the inclined belt conveyor.

2.Starch extraction stage
a. Potato grinding: This is the most important procedure in principle of isolation of starch from potato of potato starch processing technology. For it determines the extraction rate of starch and starch yield. The role of grinding is to destroy the structure of the potato roots, so that tiny starch granules can be disintegrated and separated from the potato roots.

dav

Potato starch refining machine

b. Starch slurry separation: The grated potato slurry need to be further processed to remove the impurities from starch in principle of isolation of starch from potato. Centrifuge sieve is the widely used potato starch processing machine to separating fiber and potato starch. Multiple screening or countercurrent washing processes are generally adopted. It is required that after the separating and washing process, and the starch content of the residue should less than 35%.

c. Sand removal: After separating, there still exists sand in the potato starch. If the sediment concentration of the slurry is high, it will not only influence the taste of the starch but also affected the sales and price of starch. So the desanding process is a necessary principle of isolation of starch from potato. The desander can remove sediment in the starch, improve the make the product quality to a higher class.

d. Protein separation: In this process, we designed a 14-stage concentrated hydrocyclone station for principle of isolation of starch from potato. And the process water is pumped from the other end of the cyclone station 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.

flash dryer (21)

Potato starch drying machine

3. Starch dehydrating and drying stage
a. Dehydrating: The water content of starch milk coming out of hydrocyclone station is too large to dry directly. Therefore, it is necessary to dehydrate starch milk first in principle of isolation of starch from potato. Vacuum filter is the mainly used dewatering machine which utilize the negative press to dehydrate the potato starch. The DOING dewatering machine can reduce the moisture content of wet starch lower than 38% after dehydration.

b. Drying and packing: The wet starch is then conveyed into air flow flash dryer for frying. The steam pressure is controlled at 0.8 MPa. The principle of isolation of starch from 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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Tel: 0086 371 5677 1822

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Sweet potato starch preparation process

December 5, 2018 by cassava processing machine  

The sweet potato starch preparation 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 equipment to separate starch from water suspension to achieve the purpose of recovering starch. The Doing Company sweet potato starch processing plant can automatically complete the whole process of cleaning, washing, crushing, separating, concentration and refinement, dehydration, drying and packaging of sweet potato.

sweet potato processing line (2)

Sweet potato starch preparation process

a.Choosing and weighting of sweet potato
The quality of sweet potato starch is determined by the raw sweet potatoes. Therefore we need to choose high quality sweet potato without damage. Then the chosen sweet potatoes are weighed and stored in a sweet potato stack. After that, they are transported by a conveyor to a cleaning machine for sweet potato starch preparation.

b. Sweet potato cleaning: The sweet potato starch preparation 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.

c. Sweet potato washing: The washing process is carried out by paddle washing machine for sweet potato starch preparation. 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.

potato washing machine (2)

Sweet potato washing machine

d.Sweet potato crushing: This is the most important procedure for sweet potato starch preparation. The main purpose of this section is mainly for grate the sweet potato into starch slurry so as to release the starch in the cell of sweet potato. The grating rate determines the starch extraction rate and the end products yield. The higher the grating rate, the higher starch extraction rate.

e. Separating: Separating section is another key process for sweet potato starch preparation 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. And normally we use multi stage centrifuge sieve for the separating process so as to achieve better separating effect.

f. Concentration and refining: This process of sweet potato starch preparation is for the concentration, recycling and refining of the starch milk. To ensure a better washing effect, DOING sweet potato production line 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.

starch processing plant (1)

Sweet potato starch refining machine

g. 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. It is required that the wet starch has a low moisture content of 38% after dehydration for sweet potato starch preparation.

h. Starch drying and packing: This section is for quickly removing moisture from wet sweet potato starch. The equipped machine in this section for sweet potato starch preparation is flash dryer which has the features of high drying strength, strong evaporation capacity, short drying time and good starch quality. Then the dried starch is packed by semi-automatic packing machine for sale.

 

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Industrial potato starch production plant making machine

December 4, 2018 by cassava processing machine  

The potato starch production plant of Henan Doing Company adopts the wet processing technology of starch production which contains no additive. The whole process has the features of high degree of automation, mature technology, advanced equipment and scientific configuration. The process flow of potato starch production plant includes: raw material receiving process, potato cleaning & washing process, grinding process, separating process, concentration and refining process, dewatering process and drying and packing process.

tarch processing plant (3)

Potato starch production plant

(1). Raw material receiving process
The raw material receiving unit is the first step of potato starch production plant. The main purpose of this unit is to store potatoes in the raw material storage pool. In the potato starch extraction process, it is best to ensure the integrity of potatoes. Broken potatoes are easy to rot, and rotten potatoes will infect other potatoes. The quality of potato has a great influence on starch quality. Potatoes should not be stored for more than half a month. The longer the potato is stored, the more detrimental it is to starch production.

(2). Cleaning and washing process
The role of this process for potato starch production plant is mainly to remove the sediment from the outer skin of the potato, and wash away the epidermis of the roots of the potato. Cleaning the fresh potatoes as raw materials for the production of starch is the basis for ensuring the quality of the starch. The cleaner the raw material, the better the quality of the starch.

(3). Cassava grinding process
As the most process for potato starch production plant, the purpose of crushing is to destroy the structure of the potato, so that the tiny starch granules can be smoothly separated from the roots. The starch released from the cells is called free starch and the starch inside the cell in the dregs is called bound starch.

rasper (11)

Potato grating machine

(4). Sepateting process
The crushed photo contains fiber, protein and other impurities, therefore it need to separate the starch from the impurities. Centrifuge sieve is mainly used machine to separate the fiber and starch slurry. The slurry separation is also an important process in potato starch production plant which determines the yield of starch. Therefore this process need to be repeat several times to improve the potato starch content.

(5). Concentration and refining process
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 potato starch production plant. According to the different specific gravity of water, starch and yellow pulp protein, this machine can effectively remove the impurities.

(6). Dewatering process
After that, the potato starch need to be dewatered. Vacuum filer is the main potato starch processing machine for potato starch production plant. It take use of negative pressure principle. When working, the starch is adsorbed on the filter cloth of the drum and is scraped off by the fixed scraper. While the filtrate enters the separator, so as to achieve the purpose of separation of starch and water.

starch refining hydrocyclone (11)

Potato starch refining machine

(7). Drying and packing process
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 heat source of flash dryer is steam heat exchanger. The wet starch is heated by the high speed hot air and the water evaporates in potato starch production plant. After drying, the wet air leaves the cyclone separator and is discharged into the atmosphere by the ventilator. The collected starch is packaged into finished products by packaging machine.

 

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Cassava starch making production plant

December 3, 2018 by cassava processing machine  

As a high quality starch processing raw material in cassava starch industry, cassava root has high starch content, but little protein, oil and ash content, and the contents of starch in fresh cassava root accounts for 25-32%. Here is the introduction of cassava starch making production plant.

The process and main equipment for cassava starch making production plant
Fresh cassava (conveyor)-cleaning and washing(dry sieve, rotary washing machine)-crushing (rasper)-starch slurry separation (centrifugal sieve, fine fiber sieve)-sand removal (desander) -protein separation (hydrocyclone station)-dehydration(vacuum filter)-Drying (flash dryer)

tarch processing plant (2)

Cassava starch making production plant

Here is the brief introduction of cassava starch making production plant
1. Cleaning and washing section: This is the first step for the cassava starch making production plant. The mainly equipped cassava starch processing machine in this section includes: primary cleaning machine which is also called dry sieve and rotary washing machine for washing process. After the raw materials are processed separately in these machines, the washed cassavaes reach the requirement to enter the next stage. The main features of this section is: continuous workability, large processing capacity and low power and water consumption.

2. Cassava grating section: After that, the cassava will be grated by the rasper for cassava starch making production plant. The rasper introduces the new technology of the German and the Sweden which is an important achievement of Doing company cooperate with the advanced technology.

rasper (11)

Cassava grating machine

3. Starch slurry separation and refining section
a. Starch slurry separation: For cassava starch making production plant, the separation is another important procedure. We use multi stage centrifuge sieve for separating fiber from starch in tapioca processing plant. And fine fiber sieve is added for further removing the fine fibers out of starch slurry.

b. Desanding: Desander is an cassava starch making production plant mainly used for remove the sand content out of cassava slurry for it has a bad influence on the taste of cassava starch. The desander utilizes the different specific gravity between the cassava starch and sand to remove the sand.

c. Concerntration and refining: Hydrocyclone station is the mainly used machine for remove the protein, cell fiber, cell sap out of starch milk in cassava starch making production plant. And a complete hydrocyclone station contains the concerntration, refining and recycling.

starch refining hydrocyclone (11)

Cassava starch refining machine

4. Dehydration and drying section: Then it is the final step for cassava starch making production plant. The equipped machines are vacuum filter and flash dryer. The vacuum filter mainly for dehydrating water to reduce water content in starch milk. And the drying process is carried out by the principle of negative pressure. The wet starch is mixed with hot air into the air duct, and after entering the drying requirement, it enters the cyclone separator and is then packaged into the storage.

 

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Contact: Ms Elina
Email: market@doingmachinery.com
Tel: 0086 371 5677 1822

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Wheat gluten making machine for gluten making

December 1, 2018 by cassava processing machine  

Instructions on how to use the wheat gluten making machine
1. Before starting the machine, first press 1 kg of dry flour with 0.6-0.7 kg of water and pour into the bucket. Then, according to this ratio, pour the flour into the bucket and turn it on.
2, Knead dough: it takes 12 minutes, the dough must be rotated clockwise for 5-6 minutes, and then inverted for 5-6 minutes, then stop wheat gluten making machine.
3, Wakefulness : The waiting time is not less than 12 minutes.
4, Wash the dough: 12 minutes after the shutdown, you can pour 30 kg of water into the dough bucket, wash the dough, wash until 3 minutes, stop the wheat gluten making machine and discharge the wheat flour slurry.
5, Discharge the wheat flour slurry and filteration. The filter net of gluten washer machine must be inserted in the tip of the pan when the slurry is discharged. And it is advisable to finish the slurry. The second time of washing should not exceed 5 minutes, and the two time after washing can be longer. Wash, discharge and filter the four times as mentioned in 4 and 5. Remove the gluten and clean the surface hopper.
6, The wheat gluten making machine washes 50 kilograms of flour, about 45 minutes (not including downtime). Each kilogram of high-gluten dry flour can wash out 0.45 grams of wet gluten.

Tip: Knead dough and wakefulness must be done according to the time requirements in wheat gluten making machine instruction manual, so as not to avoid confusion. Before using the filter every time, the cold wheat flour can be brushed once with the edible oil (no stain).

gluten washing machine (66).jpg

Wheat gluten making machine

Features of wheat gluten making machine
1.Easy and stable operation.
2.The structure of the wheat gluten making machine is reasonable and the shape is beautiful.
3.Standard food grade 304 stainless steel plate, plate thickness of 8 thickness and 5 thickness combined, strong and durable.

 

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How to extract starch from potato ?

November 30, 2018 by cassava processing machine  

The process for how to extract starch from potato in Doing Company adopts the wet processing technology of starch production without any additives. The whole process features with matured technology, advanced equipment, scientific configuration and reasonable technology.

The process flow of how to extract starch from potato is designed according to seven stages: cleaning, washing, grinding, separating, concentration and refining, dehydrating, drying and packing.

potato starch (3)

How to extract starch from potato

1. Cleaning stage: Dry sieve is a widely used cassava cleaning machine whose main function is to remove the sand, soil, weed and other impurities from cassava in how to extract starch from potato. This potato starch manufacturing equipment adopts multiple inner spirals design which achieve the transportation function during cleaning process. It can not only play the function of quantitative conveyance, but also control the size of material conveyance.

2. Washing stage: The washing process is carried out by paddle washing machine in how to extract starch from potato. 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.

3. Grinding stage: After cleaning and washing in the how to extract starch from potato, the potato will be crushed. Through the screw feeder, the potato goes into the rasper-an efficient grinding machine and being crushed into potato slurry. Due to the grinding efficiency (the percentage of free starch available) is critical to the overall system rate, a special design has been made for this potato starch processing machine to achieve the highest possible photo grinding efficiency.

rasper (11)

Potato grinding machine

4.Separating stage: The separating process in how to extract starch from potato is mainly for the separation of fiber and the potato starch. The centrifuge sieve is used in this process. The centrifuge sieve utilizes the high speed centrifugal force to separate fiber and starch. Normally in order to achieve better separation effect, potato starch processing line adopts multi-stage centrifuge process.

5. Concentration and refining stage: In how to extract starch from potato, hydrocyclone station is widely used for this process. The hydrocyclone station is composed of multistage cyclone in a certain way. According to the processing function of each stage cyclone in the cyclone station, different number of cyclone pipes and a feed pump need to be installed. The whole unit is independent in the process, compact in structure and convenient in installation.

6. Dehydrating stage: After concentration and refining process, the concentrated starch milk still contains a large amount of water, and thus must be dehydrated to facilitate drying. Unlike the tradition dehydrating method, the how to extract starch from potato combines the peeler centrifuge and vacuum filter for dewatering. It is required that the wet starch has a low moisture content of 38% after dehydration in potato starch production plant.

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Potato starch refining machine

7.Drying and packing stage: After dewatering of how to extract starch from potato, the starch cake is dried in the flash dryer. The wet starch is heated by the hot wind and the water evaporates. After drying, starch is separated from air in a set of cyclone separators. Then the wet air leaves the cyclone separator and is discharged into the atmosphere by the ventilator. While the collected starch is transported by the screw conveyor to the packing unit. And the finished potato starch will be packed for storage.

 

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