JP2020058301A - Refiner and refining method of sugar solution - Google Patents

Abstract

To provide a refiner and a refining method of sugar solution capable of reducing cost of installation by reducing the amount of generated sweet water.SOLUTION: There is provided a sugar solution refiner for refining sugar solution. The sugar solution refiner 1 includes a resin tower 10 formed by filling a single bed layer 12 of a cation exchange resin in contact with the upper side of a mixed bed layer 14 formed by mixing the cation exchange resin and an anion exchange resin.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sugar liquid purification apparatus and a purification method.

  In the purification process such as desalting and decolorization in the production process of sugar solution, a resin tower composed of a single bed of cation exchange resin (hereinafter sometimes referred to as “K tower”), a cation exchange resin and an anion exchange resin are mixed. A method of removing ionic substances derived from raw materials and manufacturing processes by supplying a raw sugar solution in the order of a resin tower composed of a mixed bed (hereinafter sometimes referred to as “MB tower”) is used (for example, , Patent Document 1).

  In this method, two resin towers, K tower and MB tower, are required as the resin tower, and it is required to reduce the equipment cost.

  When an ion exchange resin is used in the sugar liquid purification step, the ion exchange resin is used while being wet with water in order to efficiently generate an ion exchange reaction, and when the ion exchange resin is packed in a resin tower. It is generally practiced to keep the water level higher than the filled layer of ion exchange resin at a predetermined height.

  However, in this case, it is necessary to keep the water level high for each of the resin towers, and in the process of replacing the water in the resin towers with sugar solution when starting up the equipment, sugar solution with a thin concentration (hereinafter, (Sometimes called "sweet water"), the yield of products deteriorates, equipment startup is delayed, and the amount of drainage increases, resulting in a high environmental load.

JP-A-2-295500

  An object of the present invention is to provide an apparatus and a method for refining a sugar solution, which can reduce the amount of sweet water generated and reduce the facility cost.

  The present invention relates to a sugar solution purification device for purifying a sugar solution, which is in contact with an upper part of a mixed bed layer formed by mixing a cation exchange resin and an anion exchange resin to form a single bed of the cation exchange resin. A sugar liquid refining apparatus comprising a resin tower filled with layers.

  In the sugar liquid purification device, after purification of the sugar liquid, in the resin tower, a cation exchange resin layer containing the cation exchange resin of the single bed layer and the cation exchange resin of the mixed bed layer, and an anion of the mixed bed layer. Separation means for separating and forming an anion exchange resin layer containing an exchange resin, regeneration means for regenerating the cation exchange resin of the cation exchange resin layer and the anion exchange resin of the anion exchange resin layer, and the regenerated regeneration Formed by mixing the regenerated cation exchange resin and the regenerated anion exchange resin from a state in which the regenerated cation exchange resin layer containing the cation exchange resin and the regenerated anion exchange resin layer containing the regenerated regenerated anion exchange resin are separated. And a reconstructing means for contacting above the regenerated mixed bed layer and reconstituting the regenerated single bed layer of the regenerated cation exchange resin into a filled state. Preferably comprises a.

  In the sugar liquid purification device, the reconstructing unit transfers a resin storage tank for storing the regenerated cation exchange resin and a part of the regenerated cation exchange resin from the resin tower to the resin storage tank. A transfer means, and transfers a part of the regenerated cation exchange resin from the resin tower to the resin storage tank, and the regenerated cation exchange resin and the regenerated anion exchange resin remaining in the resin tower. It is preferable that the regenerated single bed layer is formed by filling the regenerated cation exchange resin so that the regenerated mixed bed layer is in contact with the upper side of the regenerated mixed bed layer from the resin storage tank.

  In the sugar liquid purification apparatus, the transfer means includes a resin transfer port provided in a lower portion of the resin tower, and by supplying transfer water from the lower portion of the resin tower, the regenerated anion exchange resin having a low specific gravity It is preferable that the regenerated cation exchange resin having a high specific gravity is floated above the resin transfer port and transferred from the resin transfer port to the resin storage tank.

  In the sugar liquid purification apparatus, the transfer means is a lower part of the resin tower and includes a resin transfer port provided in the regenerated cation exchange resin layer, and after water is extracted from the lower part of the resin tower, It is preferable that the regenerated cation exchange resin is transferred from the resin transfer port to the resin storage tank by supplying transfer water from a lower portion of the resin tower.

  Further, the present invention is a method for purifying a sugar solution for purifying a sugar solution, which is in contact with an upper portion of a mixed bed layer formed by mixing a cation exchange resin and an anion exchange resin, It is a method for purifying a sugar solution, which uses a resin tower filled with a single bed layer.

  In the sugar liquid purification method, after purification of the sugar liquid, in the resin tower, a cation exchange resin layer containing the cation exchange resin of the single bed layer and the cation exchange resin of the mixed bed layer, and an anion of the mixed bed layer. A separation step of separately forming an anion exchange resin layer containing an exchange resin, a regeneration step of regenerating the cation exchange resin of the cation exchange resin layer and the anion exchange resin of the anion exchange resin layer, and the regenerated regeneration Formed by mixing the regenerated cation exchange resin and the regenerated anion exchange resin from a state in which the regenerated cation exchange resin layer containing the cation exchange resin and the regenerated anion exchange resin layer containing the regenerated regenerated anion exchange resin are separated. A reconstructing step in which the regenerated single bed layer of the regenerated cation exchange resin is reconstituted so as to be filled with the regenerated mixed bed layer. It will be preferable to include.

  In the sugar liquid purification method, the reconstitution step includes a transfer step of transferring a part of the regenerated cation exchange resin from the resin tower to a resin storage tank, and reconstructing a part of the regenerated cation exchange resin. Transferred from the resin tower to the resin storage tank, the regenerated mixed bed layer is constituted by the regenerated cation exchange resin and the regenerated anion exchange resin remaining in the resin tower, and the regenerated mixed bed is formed from the resin storage tank. It is preferable to fill the regenerated cation exchange resin so as to be in contact with the upper side of the bed layer to form the regenerated single bed layer.

  In the sugar liquid purification method, in the transfer step, by supplying transfer water from the lower part of the resin tower, the regenerated anion exchange resin having a low specific gravity is moved upward from a resin transfer port provided in the lower part of the resin tower. It is preferable that the regenerated cation exchange resin having a high specific gravity is floated and transferred from the resin transfer port to the resin storage tank.

  In the sugar liquid purification method, in the transferring step, after the water is extracted from the lower part of the resin tower, the transferred water is supplied from the lower part of the resin tower, so that the regenerated cation exchange resin is supplied to the lower part of the resin tower. Therefore, it is preferable to transfer the resin from the resin transfer port provided in the regenerated cation exchange resin layer to the resin storage tank.

  INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a sugar solution refining apparatus and a refining method capable of reducing the amount of sweet water generated and reducing the facility cost.

It is a schematic block diagram which shows an example of the refinement | purification apparatus of the sugar solution which concerns on embodiment of this invention, and is a schematic diagram which shows an example of the operating method of the refinement | purification apparatus of a sugar solution. It is a schematic diagram showing an example of the operating method of the refinement | purification apparatus of the sugar solution which concerns on embodiment of this invention. It is a schematic diagram showing an example of the operating method of the refinement | purification apparatus of the sugar solution which concerns on embodiment of this invention. It is a schematic diagram showing an example of the operating method of the refinement | purification apparatus of the sugar solution which concerns on embodiment of this invention. It is a schematic diagram showing an example of the operating method of the refinement | purification apparatus of the sugar solution which concerns on embodiment of this invention. 7 is a graph showing the results of measuring the Brix value (%) with respect to the liquid passing amount in Example 1 and Comparative Example 1.

  Embodiments of the present invention will be described below. The present embodiment is an example for carrying out the present invention, and the present invention is not limited to this embodiment.

  An outline of an example of a sugar solution purification apparatus according to an embodiment of the present invention is shown in FIG. 1, and its configuration will be described.

  The sugar liquid refining device 1 is a device for purifying a sugar liquid, and is in contact with an upper portion of a mixed bed layer 14 formed by mixing a cation exchange resin and an anion exchange resin to remove the cation exchange resin. A resin tower 10 filled with a single bed layer 12 is provided. The sugar liquid refining apparatus 1 further includes a resin storage tank 24.

  In the purification apparatus 1 of FIG. 1, a pipe 16 is connected to the liquid inlet of the resin tower 10 and a pipe 18 is connected to the liquid outlet. A collector 20 is installed at a predetermined position inside the resin tower 10 as a discharging means for discharging the liquid in the resin layer to the outside, and a pipe 22 is connected to the collector 20. A resin transfer port 26 is provided on the lower side surface of the resin tower 10, and the resin transfer port 26 and the inlet of the resin storage tank 24 are connected by a resin transfer pipe 28. The outlet of the resin storage tank 24 and the resin outlet of the upper side surface of the resin tower 10 are connected by a resin transfer pipe 30.

  The operation of the sugar solution refining method and the refining device 1 according to the present embodiment will be described.

  In the purification apparatus 1 of FIG. 1, the sugar solution to be purified is supplied from the upper part of the resin tower 10 through a pipe 16, and a single bed layer 12 of a cation exchange resin and a mixed bed layer 14 of a cation exchange resin and an anion exchange resin 14 are supplied. The liquid is passed in this order, and is recovered as a purified sugar solution from the lower part of the resin tower 10 through the pipe 18 for purification such as desalting and decoloring (purification step).

  In the method for purifying a sugar solution and the purifying apparatus 1 according to the present embodiment, by filling the single bed layer 12 of the cation exchange resin with being in contact with the upper side of the mixed bed layer 14 of the cation exchange resin and the anion exchange resin, the K tower , MB tower in this order, the same purification as the device for supplying the sugar solution can be carried out in one tower. Since the purification can be performed in one tower, the amount of sweet water generated can be reduced and the facility cost can be reduced. By reducing the number of resin towers to one, the amount of sweet water generated can be reduced, the amount of drainage can be reduced, the start-up of equipment can be shortened, and the product yield can be improved.

  When preparing a sugar solution refining apparatus in which the single bed layer 12 of the cation exchange resin is filled so as to be in contact with the mixed bed layer 14 of the cation exchange resin and the anion exchange resin, after the regeneration step of the ion exchange resin, It has been difficult in the prior art to fill the single bed layer 12 of the cation exchange resin with being in contact with the upper side of the mixed bed layer 14 of the cation exchange resin and the anion exchange resin. On the other hand, in the sugar solution purification method and the purification apparatus 1 according to the present embodiment, as described below, the cation exchange resin and the anion exchange resin after the purification treatment are separated and regenerated, and a part of the regenerated cation exchange resin is obtained. Is transferred to the outside of the resin tower 10, the regenerated cation exchange resin and the regenerated anion exchange resin remaining in the resin tower 10 are mixed again to form a regenerated mixed bed layer, and the regenerated cation exchange transferred to the outside of the resin tower 10. The ion-exchange resin can be reused by refilling the resin so that it is in contact with the upper side of the regenerated mixed bed layer to form a regenerated single bed layer.

  Further, by reducing the K tower, as will be described later, the inside of the resin tower can be made alkaline in the regeneration of the ion exchange resin, so that the contamination of the resin tower by the acid-resistant microorganisms can be suppressed.

  After completion of the purification step, washing water is supplied from the upper part of the resin tower 10 through the pipe 16 and discharged from the lower part of the resin tower 10 through the pipe 18 to replace the sugar solution in the resin tower 10 with water. Next, as shown in FIG. 2, in the resin tower 10, the cation exchange resin layer 34 containing the cation exchange resin of the single bed layer 12 and the cation exchange resin of the mixed bed layer 14 of FIG. 1 and the mixed bed of FIG. The layer 14 is formed separately from the anion exchange resin layer 32 containing the anion exchange resin (see FIG. 2, separation step). For example, washing water (backwash water) is supplied from the lower part of the resin tower 10 through a pipe 18 so that the cation exchange resin and the anion exchange resin flow, and is discharged through the pipe 16 to remove the cation exchange resin and the anion exchange resin. The anion exchange resin layer 32 containing the anion exchange resin having a low specific gravity is formed by being stirred and in contact with the upper side of the cation exchange resin layer 34 containing the cation exchange resin having a high specific gravity. By the washing with the washing water (backwashing water), the sugar liquid remaining inside the resin tower 10, the sugar liquid adhering to the cation exchange resin and the anion exchange resin, and the like are removed. Here, the collector 20 is installed in the resin tower 10 so as to be below the separation surface of the anion exchange resin layer 32 and the cation exchange resin layer 34.

  The pipe 18 for supplying the backwash water functions as a separating means for separating and forming the cation exchange resin layer 34 and the anion exchange resin layer 32 in the resin tower 10 after the purification of the sugar solution.

  After completion of the separation step, the cation exchange resin of the cation exchange resin layer 34 and the anion exchange resin of the anion exchange resin layer 32 are regenerated (regeneration step). In FIG. 2, for example, the anion exchange resin regenerant is supplied from the upper portion of the resin tower 10 through the pipe 16 so as to pass through the anion exchange resin layer 32, and is discharged from the collector 20 through the pipe 22. At this time, water is supplied from the lower part of the resin tower 10 through the pipe 18 so that the cation exchange resin layer 34 is not contacted with the anion exchange resin regenerant as much as possible, and water is discharged from the collector 20 through the pipe 22 together with the anion exchange resin regenerant. Thereafter, while the water is being supplied from the lower part of the resin tower 10 through the pipe 18, the cleaning water is supplied from the upper part of the resin tower 10 through the pipe 16 and is discharged from the collector 20 through the pipe 22 to remain in the anion exchange resin layer 32. Remove the anion exchange resin regenerant. Next, the cation exchange resin regenerant is supplied from the lower portion of the resin tower 10 through the pipe 18 so as to pass through the cation exchange resin layer 34, and is discharged from the collector 20 through the pipe 22. At this time, water is supplied from the upper part of the resin tower 10 through the pipe 16 so that the cation exchange resin regenerant does not come into contact with the anion exchange resin layer 32 as much as possible, and the water is discharged from the collector 20 through the pipe 22 together with the cation exchange resin regenerant. Next, wash water and backwash water are passed from the upper part of the resin tower 10 through the pipe 16 and the bottom part through the pipe 18, respectively, and discharged from the collector 20 through the pipe 22 and washed.

  In the regeneration step, since the inside of the resin tower 10 can be made alkaline by the anion exchange resin regenerant during the regeneration of the ion exchange resin, it is possible to suppress the contamination of the resin tower by the acid-resistant microorganisms.

  Note that the pipe 16 for supplying the anion exchange resin regenerant, the pipe 18 for supplying the cation exchange resin regenerant, and the like regenerate the cation exchange resin of the cation exchange resin layer 34 and the anion exchange resin of the anion exchange resin layer 32. Will function as.

  Thus, as shown in FIG. 3, the regenerated anion exchange resin layer 36 containing the regenerated regenerated anion exchange resin is formed in contact with the regenerated cation exchange resin layer 38 containing the regenerated cation exchange resin. It will be in the formed state.

  After the regeneration step, the state where the regenerated cation exchange resin layer 38 and the regenerated anion exchange resin layer 36 are separated is located above the regenerated mixed bed layer formed by mixing the regenerated cation exchange resin and the regenerated anion exchange resin. In contact with each other, the regenerated single bed layer of the regenerated cation exchange resin is reconstituted so as to be filled (reconstitution step). In FIG. 3, for example, by supplying transfer water from the lower part of the resin tower 10 through the pipe 18, the regenerated anion exchange resin having a low specific gravity is floated above the resin transfer port 26 installed on the side surface of the lower part of the resin tower 10. A part of the regenerated cation exchange resin having a high specific gravity of the regenerated cation exchange resin layer 38 is transferred from the resin transfer port 26 to the resin storage tank 24 through the resin transfer pipe 28 (transfer step). Alternatively, a part of the regenerated cation exchange resin of the regenerated cation exchange resin layer 38 can be obtained by extracting water inside from the lower part of the resin tower 10 through the pipe 18 and then supplying transfer water from the lower part of the resin tower 10 through the pipe 18. Is transferred from the resin transfer port 26 provided in the regenerated cation exchange resin layer 38 below the resin tower 10 to the resin storage tank 24 through the resin transfer pipe 28 (transfer step). After the completion of the transfer, the regenerated cation exchange resin of the regenerated cation exchange resin layer 38 and the regenerated anion exchange resin of the regenerated anion exchange resin layer 36 flow through the pipe 18 from the lower portion of the resin tower 10 through a pipe 18 and a gas such as air. As described above, the regenerated cation exchange resin and the regenerated anion exchange resin are agitated by supplying the replenished cation exchange resin and the regenerated cation exchange resin remaining in the resin tower 10 after the transfer step as shown in FIG. Regenerated mixed bed layer 40 containing resin is formed (mixing step). The regenerated cation exchange resin and the regenerated anion exchange resin may be stirred by vibration, stirring using a stirrer, or the like. On the other hand, the resin storage tank 24 is filled with the regenerated cation exchange resin 42 transferred in FIG.

  Next, in FIG. 4, the regenerated cation exchange resin 42 is transferred from the resin storage tank 24 to the upper side of the regenerated mixed bed layer 40 through the resin transfer pipe 30 by a pump (not shown) or the like. Fill (filling step). As a result, as shown in FIG. 5, the regenerated mixed bed layer 40 is in contact with the upper side and reconstituted so as to be filled with the regenerated single bed layer 44 of the regenerated cation exchange resin, and the purification apparatus 1 shown in FIG. The same state as. Alternatively, in FIG. 4, the resin storage tank 24 is installed above the upper surface of the regenerated mixed bed layer 40, and the regenerated cation exchange resin 42 is transferred from the resin storage tank 24 to the upper side of the regenerated mixed bed layer 40 through the resin transfer pipe 30. However, it may be filled above the regenerated mixed bed layer 40.

  The resin storage tank 24, the resin transfer port 26, the resin transfer pipes 28 and 30, the transfer water, the stirring water, the gas supply pipe 18, and the pump separate the regenerated cation exchange resin layer from the regenerated anion exchange resin layer. From the state described above, the regenerated cation exchange resin and the regenerated anion exchange resin are mixed to be in contact with the upper side of the regenerated mixed bed layer to be reconstituted into a state in which the regenerated single bed layer of the regenerated cation exchange resin is filled. It will function as a reconstruction means. The resin transfer port 26, the resin transfer pipe 28, the pipe 18 for supplying the transfer water, and the like function as a transfer means for transferring a part of the regenerated cation exchange resin from the resin tower 10 to the resin storage tank 24. Become.

  Examples of the anion exchange resin used in the mixed bed layer include a strongly basic anion exchange resin and a weakly basic anion exchange resin, but when the sugar solution is a starch sugar solution, from the viewpoint of isomerization, a weak base is used. It is preferable to use a strong anion exchange resin, and when the sugar liquid is a sugar liquid other than the starch sugar liquid, a strong basic anion exchange resin or a weak basic anion exchange resin may be used.

  Examples of the strongly basic anion exchange resin include Amberlite (registered trademark, the same applies hereinafter) IRA900, IRA400, IRA402BL, IRA404J, IRA458RF, Diaion (registered trademark) SA10A, SA11A, SA12A, PA406, PA408, PA306, PA308 and the like. I type strong basic anion exchange resin and the like. Examples of the weakly basic anion exchange resin include Amberlite XE583, Amberlite FPA95, FPA96 and the like.

  Examples of the cation exchange resin used in the mixed bed layer and the single bed layer include strong acid cation exchange resins and weak acid cation exchange resins, but strong acid cation exchange resins are preferable from the viewpoints of flow-through capacity and regeneration efficiency.

  Examples of the strong acid cation exchange resin include Amberlite 120B, 200CT, FPC10, FPC20, Diaion SK1B, SK110, PK216, PK212 and the like. Examples of the weakly acidic cation exchange resin include Amberlite IRC76, FPC76J, Diaion WK10, WK11, Dowex MAC-3 and the like.

  An aqueous sodium hydroxide solution or the like is used as the anion exchange resin regenerant.

  Acids such as hydrochloric acid and sulfuric acid are used as the cation exchange resin regenerant.

  The collector 20 is not particularly limited as long as it has a configuration capable of discharging the liquid in the resin layer to the outside. It is more preferable that the collector 20 is installed at a position below the separation surface of the anion exchange resin layer 32 and the cation exchange resin layer 34 after the separation step.

  Sugar liquids (raw sugars) to be refined include starch sugar liquids such as glucose, isomerized sugar, starch syrup, sugar alcohols such as sorbitol and maltitol, lactose-containing sugar liquids, sucrose liquids, and various oligosaccharide liquids. Is mentioned. The method and apparatus for purifying a sugar solution according to this embodiment can be suitably applied to the purification of a starch sugar solution.

  Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples.

<Example 1>
Here, how much the amount of sweet water at the time of starting the apparatus can be reduced as compared with the conventional technique (Comparative Example 1) was examined.

  A column (φ1) packed with 20 mL of a strongly acidic cation exchange resin (Amberlite FPC20) from the upper side in contact with a mixed bed of 10 mL of a strongly acidic cation exchange resin (Amberlite FPC20) and 40 mL of a weakly basic anion exchange resin (Amberlite XE583) 0.5 cm × H100 cm) was prepared. The liquid surface height was 15 cm, the ionic type of the strongly acidic cation exchange resin was H type, and the ionic type of the weakly basic anion exchange resin was FB type.

  The column was heated at 40 ° C., a starch sugar solution having a Brix value of 30% was supplied at 160 mL / h, the column outlet liquid was recovered, and the Brix value of the column outlet liquid was measured by a Brix refractometer (manufactured by Atago Co., Ltd., It was measured using RX-5000i). Results are shown in FIG.

  The Brix value is defined as a value corresponding to the mass percentage of the sucrose solution at 20 ° C., and the reading Brix value is 1% when the Brix refractometer measures 100 g of an aqueous solution containing only 1 g of sucrose as a solute. is there. That is, a sucrose solution with a mass fraction of 30% (30 g of sucrose and 70 g of water in a 100 g aqueous solution) has a Brix value of 30%. However, it should be noted that in a solution containing a solid component other than sucrose, the Brix value is used as a measure of the solid component concentration and does not necessarily represent the mass fraction.

<Comparative Example 1>
A column a filled with 20 mL of a strongly acidic cation exchange resin (Amberlite FPC20) and a column b filled with 10 mL of a strongly acidic cation exchange resin (Amberlite FPC20) and 40 mL of a weakly basic anion exchange resin (Amberlite XE583) were prepared. The outlet of column a and the inlet of column b were connected with a silicon tube.

  The column a and the column b were heated at 40 ° C., a starch sugar solution having a Brix value of 30% was supplied at 160 mL / h, the column outlet liquid was recovered, and the Brix value of the column outlet liquid was measured. Results are shown in FIG.

  As shown in FIG. 6, in Example 1, the Brix value was detected from the double flow rate of 0.3, whereas in Comparative Example 1, the Brix value was not detected up to the double flow rate of 1. Further, in Example 1, the Brix value of the column outlet liquid was equal to Brix of the supplied starch sugar solution at the liquid passing amount of 2.5, whereas in Comparative Example 1, the liquid passing amount was up to 3. From the above results, it was found that the refining apparatus of Example 1 can reduce the amount of sweet water as compared with the conventional refining apparatus of Comparative Example 1.

  As described above, with the refining device having the configuration as in Example 1, the amount of sweet water generated was able to be reduced and the facility cost could be reduced.

  DESCRIPTION OF SYMBOLS 1 purification apparatus, 10 resin tower, 12 single bed layer, 14 mixed bed layer, 16,18,22 piping, 20 collector, 24 resin storage tank, 26 resin transfer port, 28,30 resin transfer piping, 32 anion exchange resin layer , 34 cation exchange resin layer, 36 regenerated anion exchange resin layer, 38 regenerated cation exchange resin layer, 40 regenerated mixed bed layer, 42 regenerated cation exchange resin layer, 44 regenerated single bed layer.

Claims (10)

A sugar liquid refining device for purifying a sugar liquid,
A sugar liquid refining apparatus comprising a resin tower which is in contact with an upper part of a mixed bed layer formed by mixing a cation exchange resin and an anion exchange resin and is filled with a single bed layer of the cation exchange resin. The sugar liquid purification device according to claim 1, wherein
After purification of the sugar liquid, in the resin tower, a cation exchange resin layer containing the cation exchange resin of the single bed layer and the cation exchange resin of the mixed bed layer, and an anion exchange resin containing the anion exchange resin of the mixed bed layer. A separation means for separately forming a layer,
Regenerating means for regenerating the cation exchange resin of the cation exchange resin layer and the anion exchange resin of the anion exchange resin layer,
From the state where the regenerated cation exchange resin layer containing the regenerated cation exchange resin and the regenerated anion exchange resin layer containing the regenerated regenerated anion exchange resin are separated, the regenerated cation exchange resin and the regenerated anion exchange resin are separated. In contact with the upper side of the regenerated mixed bed layer formed by mixing the reconstituted means for reconstituted in a state of being filled with the regenerated single bed layer of the regenerated cation exchange resin,
A sugar liquid refining apparatus comprising: The sugar liquid purification device according to claim 2,
The reconstructing means is
A resin storage tank for storing the regenerated cation exchange resin,
Transfer means for transferring a part of the regenerated cation exchange resin from the resin tower to the resin storage tank,
Equipped with
A part of the regenerated cation exchange resin is transferred from the resin tower to the resin storage tank, and the regenerated mixed bed layer is formed by the regenerated cation exchange resin and the regenerated anion exchange resin remaining in the resin tower. A sugar liquid refining apparatus comprising the above-mentioned regenerated single bed layer by filling the above-mentioned regenerated cation exchange resin so as to come into contact with the upper side of the above regenerated mixed bed layer from the resin storage tank. The sugar liquid purification device according to claim 3,
The transfer means is
A resin transfer port provided at the bottom of the resin tower,
By supplying transfer water from the lower part of the resin tower, the regenerated anion exchange resin having a low specific gravity is floated above the resin transfer port, and the regenerated cation exchange resin having a high specific gravity is stored from the resin transfer port to the resin storage port. A sugar liquid refining device characterized by being transferred to a tank. The sugar liquid purification device according to claim 3,
The transfer means is
At the bottom of the resin tower, provided with a resin transfer port provided in the regenerated cation exchange resin layer,
Sugar extracted from the lower part of the resin tower and then supplied with transfer water from the lower part of the resin tower to transfer the regenerated cation exchange resin from the resin transfer port to the resin storage tank. Liquid purification device. A sugar solution purification method for purifying a sugar solution, comprising:
A method for purifying a sugar solution, which comprises using a resin tower in which a single bed layer of a cation exchange resin is filled in contact with an upper part of a mixed bed layer formed by mixing a cation exchange resin and an anion exchange resin. The sugar solution purification method according to claim 6, wherein
After purification of the sugar liquid, in the resin tower, a cation exchange resin layer containing the cation exchange resin of the single bed layer and the cation exchange resin of the mixed bed layer, and an anion exchange resin containing the anion exchange resin of the mixed bed layer. A separation step of separately forming the layers,
A regeneration step of regenerating the cation exchange resin of the cation exchange resin layer and the anion exchange resin of the anion exchange resin layer,
From the state where the regenerated cation exchange resin layer containing the regenerated cation exchange resin and the regenerated anion exchange resin layer containing the regenerated regenerated anion exchange resin are separated, the regenerated cation exchange resin and the regenerated anion exchange resin are separated. Contacting the upper side of the regenerated mixed bed layer formed by mixing the reconstituted single bed layer of the regenerated cation exchange resin is reconstituted in a filled state,
A method for purifying a sugar solution, which comprises: The method for purifying sugar solution according to claim 7,
The reconstruction step is
A transfer step of transferring a part of the regenerated cation exchange resin from the resin tower to a resin storage tank,
A part of the regenerated cation exchange resin is transferred from the resin tower to the resin storage tank, and the regenerated mixed bed layer is formed by the regenerated cation exchange resin and the regenerated anion exchange resin remaining in the resin tower. A method for refining a sugar liquid, characterized in that the regenerated single bed layer is constituted by filling the regenerated cation exchange resin so as to come in contact with the upper side of the regenerated mixed bed layer from the resin storage tank. The sugar solution purification method according to claim 8, wherein
The transfer step is
By supplying the transfer water from the lower part of the resin tower, the regenerated anion exchange resin having a low specific gravity is floated above the resin transfer port provided in the lower part of the resin tower, and the regenerated cation exchange resin having a high specific gravity is removed. A method for purifying a sugar solution, which comprises transferring from the resin transfer port to the resin storage tank. The sugar solution purification method according to claim 8, wherein
The transfer step is
After the water is extracted from the lower part of the resin tower, the regenerated cation exchange resin is provided in the regenerated cation exchange resin layer at the lower part of the resin tower by supplying the transfer water from the lower part of the resin tower. A method for purifying a sugar solution, which comprises transferring the resin from the obtained resin transfer port to the resin storage tank.