KR102437860B1 - Apparatus for extracting natural starch from plant and extracting method thereof - Google Patents

Abstract

The present invention provides starch from a plant that contains medicinal ingredients including starch and has a lot of fiber like arrowroot (hereinafter referred to as 'arrowhead'), so that the sap (juice) can be obtained by crushing or crushing it and pressing it quickly and easily with high yield. A natural starch extraction apparatus capable of extracting and a method for extracting natural starch using the same, in which a washing and dehydration unit, a rinsing stirring unit, and a precipitation unit are integrated to extract only raw juice and then extract natural starch from waste plant extract To provide a natural starch extraction apparatus and a method for extracting natural starch using the same, which can greatly increase the extraction yield of natural starch while minimizing the time and labor required.

Description

Natural starch extraction apparatus and natural starch extraction method using same {Apparatus for extracting natural starch from plant and extracting method thereof}

The present invention relates to a starch extractor and a method for extracting starch using the same. In particular, it contains medicinal ingredients including starch and has a lot of fiber like arrowroot root (hereinafter referred to as 'arrowhead'), so it must be crushed or crushed and then compressed for sap (juice). It relates to a natural starch extraction apparatus capable of extracting starch easily and quickly in high yield from a plant from which it can be obtained, and a method for extracting natural starch using the same.

As the number of raw or natural foods using things such as arrowroot or fruit increases, a crusher for extracting the juice or liquid has been provided so that they can be consumed by extracting them as juice or liquid.

However, it was difficult to crush a plant having a firm fibrous structure, such as arrowroot, without cutting it to a predetermined size.

Plants crushed through a crusher are compressed using a hydraulic press to obtain fresh juice, and the fresh juice is subjected to a precipitation process to remove impurities and starch (starch) contained in the fresh juice in order to enhance the taste and taste of the drinker. . This precipitation process is a process to separate the sap from the solid by stabilizing the raw juice for a certain period of time in order to take only the sap part.

1 is a schematic diagram of a arrowroot juice extraction process according to the prior art. When the arrowroot juice extraction process is described with reference to FIG. 1 , first, a certain amount of water is supplied from the water supply 6 and the arrowroot crusher 1 finely chops arrowroot juice. After crushing, put it in the press (2) and extract the arrowroot juice using hydraulic pressure. Since the extracted arrowroot juice contains about 10% of the starch contained in the arrowroot juice, the extracted arrowroot juice is transferred to the settling unit 3 to separate the starch from the starch-free arrowroot juice. The arrowroot juice from which the starch has been removed is transferred to the sterilizer 7 and heated to an appropriate temperature to remove bacteria that may be contained in the raw juice, and after removing the odor and aging it for a certain period of time to adjust the taste and aroma, and add additives such as honey After adding an appropriate amount, it is packaged in a pouch or bottle.

On the other hand, the starch separated in the precipitation unit 3 is dried through a dryer 4, powdered in a pulverizer 5, and then packaged. At this time, since the initial starch separated in the sedimentation part 3 has the inherent black color of arrowroot, it does not match the taste of general consumers. When the white starch becomes white, it is sent to the dryer (4).

The starch obtained as a by-product of the above-mentioned arrowroot juice extraction process is a natural starch containing useful ingredients of arrowroot. .

Accordingly, in extracting fresh juice from various healthy plants as well as the arrowroot juice extraction process, the raw juice is smoothly extracted and the yield is only about 10% with respect to starch, which was conventionally obtained as a by-product during the raw juice extraction process. There is an urgent need for a method for extracting natural starch in a high yield and convenient manner.

KR 20-2008-0006634 U (2008.12.31.) KR 20-0454998 Y1 (2011.08.03.) KR 10-0796267 B1 (2008.01.14.) KR 10-2018-0111232 A (2018.10.11.)

Accordingly, the present inventor comprehensively considers the above-mentioned issues and focuses on solving the limitations and problems associated with extracting natural starch from the existing raw juice extraction process, thereby greatly increasing the yield of natural starch without interfering with the extraction of raw juice. In order to develop a new natural starch extraction device, the present invention was devised as a result of continuous research.

Accordingly, it is an object and technical problem to be solved by the present invention to provide a natural starch extraction apparatus capable of greatly increasing the extraction yield of natural starch and a method for extracting natural starch using the same.

In addition, the technical problem and object to be solved by the present invention is to provide an apparatus for extracting natural starch that can minimize the time and effort required for extraction of natural starch, and a method for extracting natural starch using the same.

Here, the technical problems and objects to be solved by the present invention are not limited to the technical problems and objects mentioned above, and other technical problems and objects not mentioned will be clearly understood by those skilled in the art from the following description.

The natural starch extraction apparatus according to the present invention for achieving the above object includes a lid 111 that opens and closes when inputting or taking out the crushed bundle remaining after being juiced from a press, and a crushed bundle for maximum separation of starch from the crushed bundle. For washing and dehydration, a first drain pipe 116 and a drain valve that form the outer tube of the washing tub 112 having a plurality of dewatering holes, the washing and dewatering unit 110, and leading to the rinsing and agitating unit 120 at the bottom are installed The water supply tube 113 to be used, the water supply pipe 114 that receives the water (washing water) required for washing from the first driving unit 115 and the water supply unit 60 composed of a motor and a transmission to rotate the washing tub 112, and the acquisition Washing and dewatering unit 110 consisting of a valve; The first conveying pipe 122 through which the juice compressed in the presser 20 is transferred, the juice transferred from the presser 20, and the washing and dehydrating unit 110 wash the crushed bundle and wash the discharged washing water together. The first precipitation tank 121 for precipitating starch by putting it in, the second transfer pipe 125 for transferring the juice (A) separated on the first precipitated starch to the sterilizer 70, and the juice (A) in the sterilizer ( 70), the blade 123 for stirring the rinsing water and starch in order to rinse the starch in the rinsing water newly supplied from the water supply unit 60, and a second driving unit ( 124), the first drain port 126 for discharging the rinsing water turbid by mixing arrowroot juice extracted from the starch after precipitating the starch after the rinsing and stirring operation of the blade 123; a rinsing agitator 120 comprising a second drain pipe 127 for discharging the mixed water mixed with water to the settling part 130 and a drain valve; and a second precipitation tank 131 for secondary precipitation of starch by containing mixed water in which the starch and rinsing water whitened in the rinsing agitator 120 are mixed, and the rinsing water (B) separated on the secondary precipitated starch to the outside A starch tray 133 and a starch tray ( 133), characterized in that it consists of a settling part 130 consisting of a handle 134 for withdrawing.

In addition, in the apparatus for extracting natural starch according to the present invention, the control of the first driving unit 115 for rotating the washing tank 112 in the washing and dehydration operation of the washing and dehydrating unit 110 and the rinsing and stirring unit 120 ), control of the second driving unit 124 for rotating the blade 123 in the rinse and agitation operation, water and juice supplied to the washing and dewatering unit 110 and the rinse and agitating unit 120, and washing and dehydration Control of a valve for controlling supply and discharge of juice, washing water, and rinsing water discharged from the unit 110, the rinsing agitator 120, and the settling unit 130, and a valve for discharging the rinsing water from the settling unit 130 and a control unit for controlling the operation of the natural starch extracting apparatus by controlling locking and unlocking for the control of the starch tray 133 and taking out the starch tray 133 .

In addition, in the method for extracting natural starch according to the present invention for achieving the above object, when the crushed bundles remaining after being juiced in the press are input, washing water is supplied to the water supply tank 113 (step 411), and the washing tub 112 is Through drum-type rotation, the crushed bundles are released into fibers to release the starch aggregated in the fibers into the washing water (413). ) to the washing and dehydration process 410 for discharging to the rinse agitator 120 through the first drain pipe 116; The juice flowing in from the washing and dehydration unit 110 and the starch contained in the juice flowing in from the press 20 are first precipitated (421), and the starch-free juice (A) separated on the primary precipitated starch is secondarily precipitated (421). It is transferred to the sterilizer 70 through the transfer pipe 125 (423), and when the transfer is completed, rinsing water is supplied from the water supply unit 60 (425), and the precipitated starch is stirred (427) to precipitate again. a rinsing stirring process 420 of draining 429 of the separated rinsing water; White special transfer process 430 of receiving rinsing water again (425) and stirring with whitened starch to make mixed water (433), and transferring it to the settling unit 130 (435); a starch precipitation process 420 of discharging rinsing water B after precipitating white starch by secondary precipitating mixed water in which whitened starch and rinsing water are mixed in the rinsing and agitating unit 120 (441); and a step 451 of collecting the starch contained in the starch tray 133 by pulling the handle 134 when the rinsing water B is discharged from the settling unit 130 .

In addition, in the method for extracting natural starch according to the present invention for achieving the above object, steps 425 to 429 are repeated several times until the juice contained in the starch is rinsed and the black starch is whitened.

As described above, the present invention has the effect of easily and quickly and efficiently extracting natural starch from plant extract residues that were discarded after extracting only raw juice.

Accordingly, the present invention can significantly increase the extraction yield of natural starch and minimize the time and effort required for extraction of natural starch, thereby improving the income of producers and saving consumer spending, and providing safe food ingredients. effect that can be provided.

1 is a view briefly showing a arrowroot juice extraction process according to the prior art;
2 is a view briefly showing the process before extracting raw juice and extracting natural starch according to the present invention;
3 is a cross-sectional view of a natural starch extraction device used in the raw juice extraction process according to the present invention;
4 is a flowchart of a natural starch extraction method using the natural starch extraction apparatus according to the present invention.

Hereinafter, an embodiment of an apparatus for extracting natural starch and a method for extracting natural starch using the same according to the present invention will be described in detail with reference to the drawings. The embodiments described below are provided to fully inform those of ordinary skill in the scope of the invention, and the present invention is not limited to the embodiments disclosed below and may be implemented in various forms.

Like elements in the drawings refer to like numerals wherever possible. Specific specific details are shown in the following description, which are provided to help a more general understanding of the present invention, and are not intended to limit the present invention to specific embodiments, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes. In the description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Here, the accompanying drawings are illustrated by exaggerating or simplifying a part for convenience and clarity of explanation and understanding of the configuration and operation of the technology, and reveals that each component does not exactly match the actual size.

Terms such as first, second, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. should be On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, when it is said that a part includes a certain component, it does not exclude other components unless otherwise stated, but it means that other components may be further included, and the meaning of the term "part" denotes a unit or module form that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary are defined in consideration of the function in the present invention, which should be interpreted as a concept consistent with the technical idea of the present invention and a meaning commonly or commonly recognized in the art. and shall not be construed in an ideal or excessively formal sense unless explicitly defined in the present application.

Combinations of each block in the accompanying block diagram and each step in the flowchart may be performed by computer program instructions. These computer program instructions may be embodied in a processor of a general-purpose computer, special-purpose computer, or other programmable data processing equipment, such that the instructions executed by the processor of the computer or other programmable data processing equipment correspond to each block in the block diagram or in the flowchart. Each step creates a means for performing the described functions.

2 is a diagram schematically illustrating the process before extraction of raw juice and extraction of natural starch according to the present invention, and the process of extracting arrowroot juice will be described in detail as an example.

As shown in FIG. 2 , the raw juice and natural starch extraction process according to the present invention includes a arrowroot crusher 10 , a presser 20 , a natural starch extraction device 100 , a dryer 40 , a grinder 50 , and a water supply unit. (60) and the sterilizer (70) is performed through the extraction system.

The arrowroot crusher 10 receives water from the water supply unit 60 and crushes the arrowroot into small pieces so that arrowroot juice is well extracted during compression.

The presser 20 squeezes the crushed arrowroot juice from the crushed arrowroot by pressing the crushed arrowroot finely chopped in the arrowroot crusher 10 with the same pressure as the hydraulic press. After squeezing arrowroot juice in the press 20, crushed arrowroot bundles are made. In this crushed arrowroot bundle, most of the arrowroot juice is extracted by the high pressure of the pressing machine 20, but the starch remaining between the arrowroot fibers is aggregated in the crushed arrowroot bundle together with the crushed arrowroot fiber. The starch remaining in the crushed arrowroot bundle remains mostly about 90%, assuming that 10% is the starch that has escaped with the arrowroot juice.

The natural starch extraction apparatus 100 is an apparatus for efficiently extracting the starch remaining in the crushed arrowroot bundle, and will be described in detail below with reference to FIG. 3 .

The dryer 40 dries the moisture contained in the starch extracted by the natural starch extraction apparatus 100 according to the present invention, and the grinder 50 pulverizes the starch dried in the dryer 40 into powder.

The water supply unit 60 supplies water to the arrowroot crusher 10 to smoothly crush the arrowroot, and the natural starch extraction apparatus 100 according to the present invention extracts the crushed arrowroot bundle from the crushed arrowroot bundle. Water required for washing is supplied to the washing and dehydrating unit 110 as well as washing water and rinsing water necessary for rinsing the initially black arrowroot starch and washing with white starch to the rinsing and stirring unit 120 .

The sterilizer 70 precipitates starch in the precipitation unit 130 of the natural starch extraction device 100 according to the present invention and heats the remaining starch-free arrowroot juice to 80 to 100° C. for 1 to 8 hours to be mixed with the raw juice. In addition to eradicating various insects and bacteria, moisture is properly removed to control the concentration of arrowroot juice, and it is aged for a certain period of time to maximize taste and aroma. The aging time may be 1 to 2 hours or 1 day or more according to the characteristics of the product to be finally made.

On the other hand, if you want to add an additive such as honey according to the consumer's taste or a specific purpose, it can be added directly to the sterilizer 70, or transferred to a separate stirrer 80 to add the additive and then mix it in the packaging container. It can also be recharged.

At this time, when the additive is directly added to the sterilizer 70, the sterilizer 70 is preferably further provided with a stirring function for mixing the arrowroot juice and the additive.

3 is a cross-sectional view of a natural starch extraction apparatus used in the raw juice extraction process according to the present invention, and FIG. 4 is a flowchart of a natural starch extraction method using the natural starch extraction apparatus according to the present invention. See FIGS. 2 to 4 below. Thus, the natural starch extraction apparatus and the natural starch extraction method using the same according to the present invention will be described in detail.

The apparatus 100 for extracting natural starch according to the present invention includes a washing and dehydrating unit 110 , a rinsing stirring unit 120 , and a precipitation unit 130 . In addition, the natural starch extracting apparatus 100 controls the first driving unit 115 for rotating the washing tub 112 in the washing and dehydrating operation of the washing and dehydrating unit 110 , and rinsing stirring operation of the rinsing stirring unit 120 . control of the second driving unit 124 for rotating the blade 123 in the Control of the valve for controlling the supply and discharge of arrowroot juice, washing water, and rinsing water discharged from the unit 120 and the settling unit 130, and controlling the valve discharging the rinsing water from the settling unit 130 and the starch tray 133 ), such as control of locking and unlocking for withdrawal, further includes a control unit (not shown) for controlling the operation of the natural starch extraction apparatus 100 .

The washing and dehydrating unit 110 is a lid 111 that opens and closes when putting in or taking out the crushed arrowroot bundle, which is an example of the remaining plant residue after being juiced in the press 20, and the crushed arrowroot bundle to separate the starch from the crushed arrowroot bundle as much as possible. The first drain pipe 116 and drain that forms the outer tube of the washing tub 112, the washing and dewatering unit 110, and the washing and dewatering unit 110 having a plurality of dehydration holes to accommodate and wash and dehydrate and lead to the rinsing and agitating unit 120 on the floor. A water supply pipe 113 in which a valve is installed, a water supply pipe 114 that receives water (washing water) required for washing from the first driving unit 115 comprising a motor and a transmission and a water supply unit 60 to rotate the washing tub 112 . ) and an inlet valve.

The washing and dehydration unit 110 supplies the washing water to the water supply tank 113 when the crushed arrowroot bundle is input in step 401 (step 411), and turns the crushed arrowroot bundle into fibers through the drum-type rotation of the washing tub 112. A washing and dehydration process in which the starch aggregated in the fibers is released into the washing water (413), and when the washing is completed, the washing tank 112 is rapidly rotated to dehydrate (415) the remaining starch remaining in the fibers of the crushed arrowroot. (410) is performed. The washing water containing the starch separated from the crushed arrowroot is discharged to the rinse and stirrer 120 through the first drain pipe 116 along with dehydration.

The rinsing and agitating unit 120 washes the crushed bundle from the first conveying pipe 122 through which the arrowroot juice compressed by the presser 20 is transferred, the arrowroot juice transferred from the presser 20, and the washing and dehydrating unit 110, and The first precipitation tank 121 for first precipitating the starch by putting the discharged and flowing washing water together, the second transfer pipe 125 for transferring the arrowroot juice (A) separated on the firstly precipitated starch to the sterilizer 70; After the arrowroot juice (A) is completely transferred to the sterilizer 70, the blade 123 and blade 123 are rinsed with agitating the rinsing water and arrowroot starch to rinse the arrowroot starch in the rinsing water newly supplied from the water supply unit 60. After the rinsing and stirring operation of the second driving unit 124 and the blade 123 for controlling the stirring operation, starch is precipitated, and the arrowroot juice extracted from the starch is mixed with the first drain port 126 for discharging the turbid rinse water to the outside; and rinsing. It is composed of a second drain pipe 127 and a drain valve for discharging the mixed water obtained by mixing the white starch and the last rinse water to the settling unit 130 .

The reason for discharging the mixed water obtained by mixing the white starch and the last rinse water after rinsing in the rinsing and agitating unit 120 to the precipitating unit 130 is that when the starch is finally precipitated in the rinsing and agitating unit 120, rinsing agitation This is to facilitate the collection and cleaning of starch because it is not easy to collect the starch due to the blade 124 performing the operation, and it is difficult to maintain cleanliness because it is not easy to clean.

As shown in FIG. 4 , the rinsing and agitating unit 120 first precipitates the starch contained in the arrowroot juice introduced from the washing and dehydrating unit 110 and the arrowroot juice introduced from the press 20 ( 421 ), and the first The starch-free arrowroot juice (A) separated on the precipitated starch is transferred to the sterilizer 70 through the second transfer pipe 125 (423), and when the transfer is completed, rinsing water is supplied from the water supply unit 60 (425). ), the precipitated arrowroot starch is stirred (427) to re-precipitate, and then a rinse-stirring process (420) of draining (429) the separated rinse water is performed. Steps 425 to 429 are repeated several times until the arrowroot juice contained in the arrowroot starch is rinsed and the black starch becomes white. On the other hand, an inlet pipe through which the rinsing agitation unit 120 receives rinsing water from the water supply unit 60 may be separately provided, but may also be supplied through the washing and dehydration unit 110 .

Then, the rinsing agitator 120 receives rinsing water again (425), stirs it with the whitened starch to make mixed water (433), and transfers it to the settling unit 130 (435). ) is performed.

The settling unit 130 includes a second precipitation tank 131 for secondary precipitation of starch by containing the mixed water in which the starch and rinsing water whitened in the rinsing and agitating unit 120 are mixed, and rinsing water separated on the secondary precipitated starch ( A second drain port 132 for discharging B) to the outside, white starch in the mixed water is precipitated, and a starch tray 133 provided in a drawer type that can be inserted and drawn into the second settling tank 131 after the rinsing water (B) is discharged. ) and a handle 134 for taking out the starch tray 133 .

As shown in FIG. 4 , the settling unit 130 precipitates white starch by secondary precipitating the mixed water in which the white starch and rinsing water are mixed in the rinse and agitating unit 120 ( 441 ), and then the rinsing water (B) ), and finally, when the rinsing water B is discharged from the settling unit 130, the starch contained in the starch tray 133 is collected by pulling the handle 134 (451). ).

Thereafter, the starch separated in the precipitation unit 130 is dried through a dryer 40 , and is then powdered in the pulverizer 50 and then packaged as described above.

As described above, the apparatus for extracting natural starch and the method for extracting natural starch using the same according to the present invention minimize the time and labor required for extracting natural starch from plant extract residues that were discarded after extracting only raw juice, while minimizing the time and labor required for natural starch can significantly increase the extraction yield of

On the other hand, although the detailed description of the present invention has been described in detail with reference to preferred embodiments referenced by the accompanying drawings, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments and should be defined by the claims described below as well as the claims and equivalents.

100: natural starch extraction device 110: washing and dehydration unit
111: lid 112: washing tank
113: water tank 114: water inlet pipe
115: first driving unit 116: first drain pipe
120: rinsing stirring unit 121: first precipitation tank
122: first transfer pipe 123: blade
124: second driving unit 125: second transfer pipe
126: first drain 127: second drain
130: settling unit 131: second settling tank
132: second drain 133: starch tray
134: handle A: starch-free arrowroot juice

Claims (4)

A lid 111 that opens and closes when putting in or taking out the crushed bundles juiced from the press, and a washing tub 112 with a plurality of dehydration holes for storing, washing and dehydrating the crushed bundles in order to separate starch from the crushed bundles as much as possible; washing and a first drain pipe 116 that forms an outer tube of the dewatering unit 110 and leads to the rinsing and agitating unit 120 on the floor, a water supply tank 113 in which a drain valve is installed, a motor and a washing tub 112 to rotate a washing and dewatering unit 110 composed of a water inlet pipe 114 receiving water (washing water) required for washing from the first driving unit 115 and the water supply unit 60 composed of a transmission and an inlet valve;
The first conveying pipe 122 through which the juice compressed in the presser 20 is transferred, the juice transferred from the presser 20, and the washing and dehydrating unit 110 wash the crushed bundle and wash the discharged washing water together. The first precipitation tank 121 for precipitating starch by putting it in, the second transfer pipe 125 for transferring the juice (A) separated on the first precipitated starch to the sterilizer 70, and the juice (A) in the sterilizer ( 70), a blade 123 that stirs the rinsing water and starch to rinse the starch in rinsing water newly supplied from the outside, a second driving unit 124 that controls the rinsing stirring operation of the blade 123, the blade After the rinsing and stirring operation of (123), starch is precipitated, and the first drain port 126 for discharging the rinsing water that has become cloudy mixed with arrowroot juice from the starch, and the starch and the last rinsing water that have been whitened after rinsing are mixed. a second drain pipe 127 for discharging the mixed water to the settling part 130 and a rinsing agitator 120 comprising a drain valve; and
The second precipitation tank 131 for secondary precipitation of starch by containing the mixed water in which the whitened starch and rinsing water are mixed in the rinsing stirring unit 120, and the rinsing water (B) separated on the secondary precipitated starch is discharged to the outside A starch tray 133 and a starch tray 133 provided in a drawer type that can be inserted and withdrawn into the second settling tank 131 after the second drain port 132, where white starch in the mixed water is precipitated, and the rinsing water (B) is discharged. ), a natural starch extraction device characterized in that it consists of a settling part (130) consisting of a handle (134) for withdrawing.
The method of claim 1,
control of the first driving unit 115 for rotating the washing tub 112 in the washing and dehydration operation of the washing and dehydrating unit 110;
Control of the second driving unit 124 for rotating the blade 123 in the rinsing stirring operation of the rinse stirring unit 120,
Water and juice supplied to the washing and dewatering unit 110 and the rinsing and agitating unit 120, and the juice and washing water discharged from the washing and dewatering unit 110, the rinsing and agitating unit 120 and the settling unit 130, and Control of the valve that controls the supply and discharge of rinsing water and
and a control unit for controlling the operation of the natural starch extraction device by controlling the valve for discharging the rinsing water from the settling unit 130 and locking and unlocking the starch tray 133 for withdrawal. natural starch extraction device.
When the crushed bundles that have been juiced from the press are put in, the washing water is supplied to the water supply tank 113 (411), and the crushed bundles are released into fibers through the drum-type rotation of the washing tub 112, and the starch accumulated in the fibers is released into the washing water. When washing is completed, the washing tub 112 is quickly rotated to dehydrate (415) with washing water until the remaining starch remaining in the fibers, and the washing is discharged to the rinse and stirrer 120 through the first drain pipe 116. and a dehydration process 410;
The juice flowing in from the washing and dehydration unit 110 and the starch contained in the juice flowing in from the press 20 are first precipitated (421), and the starch-free juice (A) separated on the primary precipitated starch is secondarily precipitated (421). It is transferred to the sterilizer 70 through the transfer pipe 125 (423), and when the transfer is completed, fresh rinsing water is supplied from the outside (425), and the precipitated starch is stirred (427) to precipitate again and then rinsed separately a rinse-stirring process 420 for draining the water 429;
White special transfer process 430 of receiving rinsing water again (425) and stirring with whitened starch to make mixed water (433), and transferring it to the settling unit 130 (435);
A starch precipitation process 420 of discharging rinsing water B after precipitating white starch by secondary precipitating mixed water in which whitened starch and rinsing water are mixed in the rinsing and agitating unit 120 (441); and
When the rinsing water (B) is discharged from the settling unit 130, pulling the handle 134 to collect the starch contained in the starch tray 133 (451).
4. The method of claim 3,
Steps 425 to 429 are repeated several times until the juice contained in the starch is rinsed and the black starch is whitened.

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