A kind of adsorption decolorization device of stevia extract

Abstract

The invention provides an adsorption decolorization device for stevioside extract, which relates to the field of decolorization devices. The device comprises two boxes; two U-shaped cavities are provided, and the two U-shaped cavities are respectively opened on the inner sides of the two boxes; two U-shaped filter plates are provided, and the two U-shaped filter plates are respectively fixedly connected to the inner sides of the two boxes; two discharge cavities are provided, and the two discharge cavities are respectively opened on the inner sides of the two boxes; two groups of support legs are provided, and the two groups of support legs are respectively fixedly connected to the lower end surfaces of the two boxes; two groups of connecting rollers are provided, and the two groups of connecting rollers are respectively rotatably connected to the inner sides of the two boxes, so as to solve the problem that the decolorization resin in the existing adsorption decolorization device for stevioside extract usually needs to be replaced after being used for a period of time, which affects the decolorization efficiency, and improve the decolorization efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of decolorization devices, in particular to an adsorption decolorization device for stevioside extract. Background Art

[0002] Stevia is a natural sweetener extracted from the leaves of stevia. In the processing of stevia, the stevia extract obtained from stevia is usually first transported to a special adsorption decolorization equipment, with the help of which the pigment contained in the extract is adsorbed and decolorized to improve the quality and appearance of stevia.

[0003] According to the application number: CN201921845553.1, a glucosamine hydrochloride decolorization device is disclosed, including a decolorization tank body, a tank cover is arranged on the top of the decolorization tank body, and the outer surface of the upper side of the decolorization tank body and the outer surface of the lower side of the tank cover are both provided with connecting rings fixedly connected thereto, and the left and right sides of the decolorization tank body and the tank cover are connected by a connecting assembly. In this scheme, a crude aqueous solution of glucosamine hydrochloride product is passed into the decolorization tank body through a feed pipe, and the crude aqueous solution of glucosamine hydrochloride product is preliminarily decolorized by the macroporous adsorption resin column in the decolorization assembly. By energizing the driving motor, the macroporous adsorption resin plate in the auxiliary decolorization device is driven to rotate, and the solution after the initial decolorization and adsorption is stirred, so that the solution is subjected to secondary adsorption and decolorization by the macroporous adsorption resin plate, and the residual colored substances in the solution are completely removed, so that the decolorization effect is good and the decolorization purity is higher.

[0004] However, most of the existing adsorption decolorization devices for stevia extract rely on decolorization resin to achieve the decolorization operation of stevia extract. However, after a period of use, the decolorization performance of the decolorization resin will decline. In view of this, the decolorization resin usually needs to be replaced. When replacing, the decolorization of the stevia extract needs to be stopped, which greatly affects the decolorization efficiency. Summary of the invention

[0005] In view of this, the present invention provides an adsorption decolorization device for stevia extract, which has the advantages of improving decolorization efficiency and reducing labor.

[0006] The present invention provides an adsorption decolorization device for stevioside extract, which specifically comprises a box body, a U-shaped cavity, a U-shaped filter plate, a discharge cavity, a support leg, a connecting roller, a driving motor, a feeding pipe, a discharging pipe, a decolorization and cleaning mechanism and a connecting mechanism; the box body is provided with two; the U-shaped cavity is provided with two, and the two U-shaped cavities are respectively opened on the inner sides of the two boxes; the U-shaped filter plate is provided with two, and the two U-shaped filter plates are respectively fixedly connected on the inner sides of the two boxes; the discharge cavity is provided with two, and the two discharge cavities are respectively opened on the inner sides of the two boxes; the support leg is provided with two groups, and the two groups of support legs are respectively provided with a plurality of support legs. The two connecting rollers are respectively fixedly connected to the lower end surfaces of the two boxes; there are two groups of connecting rollers, which are rotatably connected to the inner sides of the two boxes; there are two driving motors, which are respectively fixedly connected to the outer sides of the two boxes, and the rotating shafts of the driving motors are concentrically fixedly connected to the connecting rollers; there are two feeding pipes, which are respectively fixedly connected to the outer sides of the two boxes; there are two discharging pipes, which are respectively fixedly connected to the outer sides of the two boxes; the decolorization and cleaning mechanism is arranged on the inner side of the box; the connecting mechanism is arranged on the outer side of the box.

[0007] Furthermore, the decolorization and cleaning mechanism includes: an elution chamber, an eluent injection tube and an eluent discharge tube; the elution chamber is provided with two, and the two elution chambers are respectively opened on the inner sides of the two boxes; the eluent injection tube is provided with two, and the two eluent injection tubes are respectively fixedly connected to the outer sides of the two boxes; the eluent discharge tube is provided with two, and the two eluent discharge tubes are respectively fixedly connected to the lower end surfaces of the two boxes.

[0008] Furthermore, the decolorization and cleaning mechanism also includes: a flushing chamber, a flushing tube and a flushing and excretion tube; there are two flushing chambers, which are respectively opened on the inner sides of the two boxes; there are two flushing tubes, which are respectively fixedly connected to the outer sides of the two boxes; there are two flushing and excretion tubes, which are respectively fixedly connected to the lower end surfaces of the two boxes.

[0009] Furthermore, the decolorization and cleaning mechanism also includes: a decolorization transmission belt and a decolorization resin; two decolorization transmission belts are provided, and the two decolorization transmission belts are respectively wrapped on the outside of two groups of connecting rollers; two groups of decolorization resins are provided, and the two groups of decolorization resins are respectively filled on the inside of the two decolorization transmission belts.

[0010] Furthermore, the decolorization and cleaning mechanism also includes: a driving gear and a connecting gear; the driving gear is provided with two groups, and the two groups of driving gears are respectively rotatably connected to the outside of the two boxes, and the driving gear is fixedly connected to the connecting roller; the connecting gear is provided with two groups, and the two groups of connecting gears are respectively rotatably connected to the outside of the two boxes, and the connecting gear is meshed with the driving gear.

[0011] Furthermore, the decolorization and cleaning mechanism also includes: a connecting pulley, a cleaning pulley, a connecting belt and a cleaning roller; the connecting pulley is provided with two groups, and the two groups of connecting pulleys are respectively fixedly connected to the outside of the two groups of connecting gears; the cleaning pulley is provided with two groups, and the two groups of cleaning pulleys are respectively rotatably connected to the outside of the two boxes; the connecting belt is provided with two groups, and the two groups of connecting belts are respectively covered on the outside of the two groups of connecting pulleys and the two groups of cleaning pulleys; the cleaning roller is provided with two groups, and the two groups of cleaning rollers are respectively rotatably connected to the inside of the two boxes, and the two groups of cleaning rollers are respectively fixedly connected to the two groups of cleaning pulleys.

[0012] Furthermore, the connecting mechanism includes: a connecting piece, a connecting pipe, a connecting groove, a limiting groove and a sealing gasket; the connecting piece is installed in the middle of the two boxes; there are multiple connecting pipes, and the multiple connecting pipes are fixedly connected to the outside of the connecting piece; there are multiple groups of connecting grooves, and the multiple groups of connecting grooves are respectively opened on the inner sides of the multiple groups of connecting pipes; there are multiple groups of limiting grooves, and the multiple groups of limiting grooves are respectively opened on the inner sides of the multiple groups of connecting grooves; there are multiple sealing gaskets, and the multiple sealing gaskets are respectively slidably connected to the inner sides of the multiple connecting pipes.

[0013] Furthermore, the connecting mechanism also includes: a fixed protrusion, a limiting slider, a fixed push plate and a compression spring; the fixed protrusion is provided with two groups, and the two groups of fixed protrusions are respectively fixedly connected to the outer sides of the two feed pipes and the two discharge pipes; the limiting slider is provided with two groups, and the two groups of limiting sliders are respectively slidably connected to the inner sides of the two groups of fixed protrusions; the fixed push plate is provided with two groups, and the two groups of fixed push plates are respectively fixedly connected to the outer sides of the two groups of limiting sliders; the compression spring is provided with two groups, one end of the two groups of compression springs are respectively fixedly connected to the outer sides of the two groups of limiting sliders, and the other end of the two groups of compression springs are respectively fixedly connected to the inner sides of the two groups of fixed protrusions. Beneficial Effects

[0014] The present invention realizes the rapid replacement of decolorizing resin by setting up the decolorizing and cleaning mechanism. The stevioside extract is injected into the U-shaped cavity through the feed pipe. The stevioside extract in the U-shaped cavity will then fully contact with the decolorizing resin. After the decolorizing resin plays a decolorizing role, the liquid passes through the U-shaped filter plate and enters the discharge cavity, and the impurities in the extract are filtered and removed by the decolorizing transmission belt. The stevioside extract entering the discharge cavity is finally discharged through the discharge pipe. After the drive motor is started, the drive motor drives the connecting roller to start rotating. The rotation of the connecting roller drives the decolorizing transmission belt to transmit. In this way, the U-shaped cavity can be replaced smoothly. The decolorization transmission belt and decolorization resin inside the cavity ensure the decolorization effect of the decolorization resin on the stevia extract and maintain a high decolorization efficiency. Moreover, during the rotation of the connecting roller, it will also drive the driving gear to rotate together. The driving gear will drive the connecting pulley to rotate under the action of mutual meshing with the connecting gear. The connecting pulley will rotate the cleaning pulley driven by the connecting belt, and then the cleaning roller will rotate. In this way, the impurities attached to the outside of the decolorization transmission belt can be cleaned up, which effectively guarantees the decolorization adsorption performance of the decolorization resin, not only improves the decolorization efficiency, but also avoids the trouble of frequent manual replacement, improves work efficiency, and reduces labor.

[0015] In addition, through the setting of the connecting mechanism, the connection of multiple decolorization devices is realized. The connecting tube on one side of the connecting piece is connected to the feed pipe, and the connecting tube on the other side is connected to the discharge pipe, so as to achieve the connection between the two decolorization devices. When the two decolorization devices are connected by using the connecting piece, the limit slider will be inserted into the inner side of the limit groove under the action of the compression spring, thereby completing the installation of the connecting piece. The whole operation is very simple, which further improves the work efficiency.

[0016] In addition, through the setting of the above-mentioned mechanism, the rapid replacement of the decolorization resin is achieved, the decolorization adsorption performance is effectively guaranteed, the decolorization efficiency is improved, the frequent manual replacement is reduced, the work efficiency is improved and the labor workload is reduced, and the connection of multiple decolorization devices is realized, and the overall work efficiency is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 It is a schematic structural diagram of the main body of the first embodiment of the present invention.

[0020] Figure 2It is a schematic structural diagram of the feed pipe of the first embodiment of the present invention.

[0021] Figure 3 It is a schematic structural diagram of a box body cross-section according to the first embodiment of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the decolorizing transmission belt of the first embodiment of the present invention.

[0023] Figure 5 It is a schematic structural diagram of a cleaning roller according to the first embodiment of the present invention.

[0024] Figure 6 It is a schematic structural diagram of a U-shaped filter plate according to the first embodiment of the present invention.

[0025] Figure 7 It is a schematic structural diagram of a cross-section of a connecting piece according to a second embodiment of the present invention.

[0026] Figure 8 The second embodiment of the present invention Figure 6 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0027] Reference numerals list 1. Box body; 101. U-shaped cavity; 102. U-shaped filter plate; 103. Discharge cavity; 104. Elution cavity; 105. Flushing cavity; 2. Support legs; 3. Connecting roller; 301. Driving gear; 4. Driving motor; 5. Feed pipe; 6. Discharge pipe; 7. Eluent injection pipe; 8. Eluent discharge pipe; 9. Flushing pipe; 10. Flushing discharge pipe; 11. Decolorization transmission belt; 12. Decolorization resin; 13. Connecting gear; 14. Connecting pulley; 15. Cleaning pulley; 16. Connecting belt; 17. Cleaning roller; 18. Connecting piece; 1801. Connecting pipe; 1802. Connecting groove; 1803. Limiting groove; 19. Sealing gasket; 20. Fixed protrusion; 2001. Limiting slider; 2002. Fixed push plate; 2003. Compression spring. DETAILED DESCRIPTION

[0028] Example 1: Please refer to Figure 1-Figure 6 As shown: The present invention provides an adsorption decolorization device for stevioside extract, comprising a box body 1, a U-shaped cavity 101, a U-shaped filter plate 102, a discharge cavity 103, a support leg 2, a connecting roller 3, a driving motor 4, a feeding pipe 5, a discharging pipe 6 and a decolorization and cleaning mechanism; the box body 1 is provided with two; the U-shaped cavity 101 is provided with two, and the two U-shaped cavities 101 are respectively opened on the inner sides of the two box bodies 1; the U-shaped filter plates 102 are provided with two, and the two U-shaped filter plates 102 are respectively fixedly connected on the inner sides of the two box bodies 1; the discharge cavity 103 is provided with two, and the two discharge cavities 103 are respectively opened on the inner sides of the two box bodies 1; the supporting legs 2, the connecting rollers 3, the driving motor 4, the feeding pipe 5, the discharging pipe 6 and the decolorization and cleaning mechanism; the box body 1 is provided with two; the U-shaped cavity 101 is provided with two, and the two U-shaped cavities 101 ... U-shaped filter plates 102 are provided with two, and the two U-shaped filter plates 102 are respectively fixedly connected on the inner sides of the two box bodies 1; the discharging cavity 103 is provided with two, and the two discharging cavities 103 are respectively opened on the inner sides of the two box bodies 1; the supporting legs 2 There are two groups of support legs 2, which are respectively fixedly connected to the lower end surfaces of the two box bodies 1; there are two groups of connecting rollers 3, which are respectively rotatably connected to the inner sides of the two box bodies 1; there are two drive motors 4, which are respectively fixedly connected to the outer sides of the two box bodies 1, and the rotating shafts of the drive motors 4 are concentrically fixedly connected to the connecting rollers 3; there are two feed pipes 5, which are respectively fixedly connected to the outer sides of the two box bodies 1; there are two discharge pipes 6, which are respectively fixedly connected to the outer sides of the two box bodies 1; the decolorization and cleaning mechanism is arranged on the inner side of the box body 1.

[0029] The decolorization and cleaning mechanism includes: an elution chamber 104, a flushing chamber 105, a driving gear 301, an eluent injection tube 7, an eluent discharge tube 8, a flushing tube 9, a flushing discharge tube 10, a decolorization transmission belt 11, a decolorization resin 12, a connecting gear 13, a connecting pulley 14, a cleaning pulley 15, a connecting belt 16 and a cleaning roller 17; two elution chambers 104 are provided, and the two elution chambers 104 are respectively opened on the inner sides of the two boxes 1; two flushing chambers 105 are provided, and the two flushing chambers 105 are respectively opened On the inner side of the two boxes 1; there are two sets of driving gears 301, which are rotatably connected to the outer sides of the two boxes 1, and the driving gears 301 are fixedly connected to the connecting roller 3; there are two eluent injection pipes 7, which are fixedly connected to the outer sides of the two boxes 1; there are two eluent discharge pipes 8, which are fixedly connected to the lower end surfaces of the two boxes 1; there are two flushing pipes 9, which are fixedly connected to the outer sides of the two boxes 1 ; Two flushing and drainage pipes 10 are provided, and the two flushing and drainage pipes 10 are fixedly connected to the lower end surfaces of the two boxes 1; two bleaching transmission belts 11 are provided, and the two bleaching transmission belts 11 are respectively covered on the outside of the two groups of connecting rollers 3; two groups of bleaching resins 12 are provided, and the two groups of bleaching resins 12 are respectively filled on the inside of the two bleaching transmission belts 11; two groups of connecting gears 13 are provided, and the two groups of connecting gears 13 are respectively rotatably connected to the outside of the two boxes 1, and the connecting gears 13 are meshed with the driving gear 301; the connecting pulley 1 4 are provided with two groups, and the two groups of connecting pulleys 14 are respectively fixedly connected to the outer sides of the two groups of connecting gears 13; two groups of cleaning pulleys 15 are provided, and the two groups of cleaning pulleys 15 are respectively rotatably connected to the outer sides of the two boxes 1; two groups of connecting belts 16 are provided, and the two groups of connecting belts 16 are respectively covered on the outer sides of the two groups of connecting pulleys 14 and the two groups of cleaning pulleys 15; two groups of cleaning rollers 17 are provided, and the two groups of cleaning rollers 17 are respectively rotatably connected to the inner sides of the two boxes 1, and the two groups of cleaning rollers 17 are respectively fixedly connected to the two groups of cleaning pulleys 15.

[0030] The specific usage and function of this embodiment are as follows: the stevioside extract is injected into the U-shaped cavity 101 through the feed pipe 5, the stevioside extract in the U-shaped cavity 101 will be decolorized by the decolorizing resin 12, and then pass through the U-shaped filter plate 102 to enter the discharge cavity 103, and the impurities in the stevioside extract will be filtered out by the decolorizing transmission belt 11, and the stevioside extract entering the discharge cavity 103 will be discharged through the discharge pipe 6, and the drive motor 4 will be started, and the drive motor 4 will drive the connecting roller 3 to rotate, and the rotation of the connecting roller 3 will drive the decolorizing transmission belt 11 to drive, and the decolorizing transmission belt 11 and the decolorizing resin 12 in the U-shaped cavity 101 are replaced to ensure the decolorizing efficiency of the stevioside extract by the decolorizing resin 12, and at the same time, when the connecting roller 3 rotates, the connecting roller 3 will also drive the driving gear 301 to rotate, and the rotation of the driving gear 301 will drive the connecting pulley 14 to rotate under the action of meshing with the connecting gear 13, and the connecting pulley 14 The rotation will drive the cleaning pulley 15 to rotate under the action of the connecting belt 16, so that the cleaning pulley 15 drives the cleaning roller 17 to rotate, and the impurities attached to the outside of the bleaching transmission belt 11 are cleaned, and the eluent is injected into the elution chamber 104 through the eluent injection tube 7. When the bleaching transmission belt 11 drives the bleaching resin 12 to enter the elution chamber 104, the eluent will dissolve the pigment adsorbed in the bleaching resin 12, and the eluent discharge tube 8 can discharge the used eluent in the elution chamber 104, and then inject clean water into the flushing chamber 105 through the flushing tube 9. When the bleaching transmission belt 11 drives the bleaching resin 12 to enter the flushing chamber 105, the clean water will flush the residual eluent in the bleaching transmission belt 11 and the bleaching resin 12, and the waste liquid after flushing will be discharged through the flushing discharge tube 10.

[0031] Embodiment 2: Based on Embodiment 1, Figure 7-Figure 8As shown, the connection mechanism includes: a connection member 18, a connection pipe 1801, a connection groove 1802, a limiting groove 1803, a sealing gasket 19, a fixed protrusion 20, a limiting slider 2001, a fixed push plate 2002 and a compression spring 2003; the connection mechanism is arranged on the outside of the box body 1; the connection member 18 is installed in the middle of the two boxes 1; there are multiple connection pipes 1801, and the multiple connection pipes 1801 are fixedly connected to the outside of the connection member 18; there are multiple groups of connection grooves 1802, and the multiple groups of connection grooves 1802 are respectively opened on the inner sides of the multiple connection pipes 1801; there are multiple groups of limiting grooves 1803, and the multiple groups of limiting grooves 1803 are respectively opened on the inner sides of the multiple groups of connection grooves 1802; the sealing gasket 19 is provided with multiple , multiple sealing gaskets 19 are respectively slidably connected to the inner sides of multiple connecting tubes 1801; two groups of fixed protrusions 20 are provided, and the two groups of fixed protrusions 20 are respectively fixedly connected to the outer sides of the two feed pipes 5 and the two discharge pipes 6; two groups of limit sliders 2001 are provided, and the two groups of limit sliders 2001 are respectively slidably connected to the inner sides of the two groups of fixed protrusions 20; two groups of fixed push plates 2002 are provided, and the two groups of fixed push plates 2002 are respectively fixedly connected to the outer sides of the two groups of limit sliders 2001; two groups of compression springs 2003 are provided, and one ends of the two groups of compression springs 2003 are respectively fixedly connected to the outer sides of the two groups of limit sliders 2001, and the other ends of the two groups of compression springs 2003 are respectively fixedly connected to the inner sides of the two groups of fixed protrusions 20.

[0032] The specific usage and function of this embodiment: by connecting the connecting tube 1801 on one side of the connecting piece 18 to the feed pipe 5, and connecting the connecting tube 1801 on the other side to the discharge pipe 6, the connection between the two decolorization devices is realized. When the connecting piece 18 is used to connect the two decolorization devices, the limiting slider 2001 will be inserted into the inner side of the limiting groove 1803 under the action of the compression spring 2003 to realize the installation of the connecting piece 18.

[0033] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0034] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0035] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An adsorption decolorization device for stevioside extract, comprising a housing (1), a U-shaped cavity (101), a U-shaped filter plate (102), a discharge cavity (103), support legs (2), a connecting roller (3), a drive motor (4), a feed pipe (5), a discharge pipe (6), a decolorization and cleaning mechanism and a connecting mechanism; the housing (1) is provided with two; the U-shaped cavity (101) is provided with two, and the two U-shaped cavities (101) are respectively opened on the inner sides of the two housings (1); the U-shaped filter plates (102) are provided with two, and the two U-shaped filter plates (102) are respectively fixedly connected to the inner sides of the two housings (1); the discharge cavity (103) is provided with two, and the two discharge cavities (103) are respectively opened on the inner sides of the two housings (1); the support legs (2) are provided with two groups, and the two groups of support legs (2) are respectively fixedly connected to the lower end surfaces of the two housings (1); the characteristics are: The connecting rollers (3) are provided in two groups, and the two groups of connecting rollers (3) are rotatably connected to the inner sides of the two boxes (1); the driving motors (4) are provided in two groups, and the two driving motors (4) are respectively fixedly connected to the outer sides of the two boxes (1), and the rotating shafts of the driving motors (4) are concentrically fixedly connected to the connecting rollers (3); the feeding pipes (5) are provided in two groups, and the two feeding pipes (5) are respectively fixedly connected to the outer sides of the two boxes (1); the discharging pipes (6) are provided in two groups, and the two discharging pipes (6) are respectively fixedly connected to the outer sides of the two boxes (1); the decoloring and cleaning mechanism is arranged on the inner side of the box (1); and the connecting mechanism is arranged on the outer side of the box (1).

2. The adsorption decolorization device for stevioside extract according to claim 1, characterized in that: The decolorizing and cleaning mechanism comprises: an elution chamber (104), an eluent injection tube (7) and an eluent discharge tube (8); two elution chambers (104) are provided, and the two elution chambers (104) are respectively opened on the inner sides of the two boxes (1); two eluent injection tubes (7) are provided, and the two eluent injection tubes (7) are respectively fixedly connected to the outer sides of the two boxes (1); two eluent discharge tubes (8) are provided, and the two eluent discharge tubes (8) are respectively fixedly connected to the lower end surfaces of the two boxes (1).

3. The adsorption decolorization device for stevioside extract according to claim 2, characterized in that: The decolorizing and cleaning mechanism further comprises: a flushing chamber (105), a flushing pipe (9) and a flushing and excretion pipe (10); two flushing chambers (105) are provided, and the two flushing chambers (105) are respectively opened on the inner sides of the two boxes (1); two flushing pipes (9) are provided, and the two flushing pipes (9) are respectively fixedly connected to the outer sides of the two boxes (1); two flushing and excretion pipes (10) are provided, and the two flushing and excretion pipes (10) are respectively fixedly connected to the lower end surfaces of the two boxes (1).

4. The adsorption decolorization device for stevioside extract according to claim 3, characterized in that: The decolorizing and cleaning mechanism further comprises: a decolorizing transmission belt (11) and a decolorizing resin (12); two decolorizing transmission belts (11) are provided, and the two decolorizing transmission belts (11) are respectively wrapped around the outside of two groups of connecting rollers (3); and two groups of decolorizing resin (12) are provided, and the two groups of decolorizing resin (12) are respectively filled on the inside of the two decolorizing transmission belts (11).

5. The adsorption decolorization device for stevioside extract according to claim 4, characterized in that: The decolorizing and cleaning mechanism further comprises: a driving gear (301) and a connecting gear (13); the driving gear (301) is provided with two groups, the two groups of driving gears (301) are respectively rotatably connected to the outsides of the two boxes (1), and the driving gear (301) is fixedly connected to the connecting roller (3); the connecting gear (13) is provided with two groups, the two groups of connecting gears (13) are respectively rotatably connected to the outsides of the two boxes (1), and the connecting gear (13) is meshed with the driving gear (301).

6. The adsorption decolorization device for stevioside extract according to claim 5, characterized in that: The decolorizing and cleaning mechanism further comprises: a connecting pulley (14), a cleaning pulley (15), a connecting belt (16) and a cleaning roller (17); the connecting pulley (14) is provided with two groups, and the two groups of connecting pulleys (14) are respectively fixedly connected to the outside of the two groups of connecting gears (13); the cleaning pulley (15) is provided with two groups, and the two groups of cleaning pulleys (15) are respectively rotatably connected to the outside of the two boxes (1); the connecting belt (16) is provided with two groups, and the two groups of connecting belts (16) are respectively covered on the outside of the two groups of connecting pulleys (14) and the two groups of cleaning pulleys (15); the cleaning roller (17) is provided with two groups, and the two groups of cleaning rollers (17) are respectively rotatably connected to the inside of the two boxes (1), and the two groups of cleaning rollers (17) are respectively fixedly connected to the two groups of cleaning pulleys (15).

7. The adsorption decolorization device for stevioside extract according to claim 1, characterized in that: The connection mechanism comprises: a connection piece (18), a connection pipe (1801), a connection groove (1802), a limiting groove (1803) and a sealing gasket (19); the connection piece (18) is installed in the middle of the two boxes (1); a plurality of connection pipes (1801) are provided, and the plurality of connection pipes (1801) are fixedly connected to the outside of the connection piece (18); a plurality of connection grooves (1802) are provided, and the plurality of connection grooves (1802) are respectively opened on the inner sides of the plurality of connection pipes (1801); a plurality of limiting grooves (1803) are provided, and the plurality of limiting grooves (1803) are respectively opened on the inner sides of the plurality of connection grooves (1802); a plurality of sealing gaskets (19) are provided, and the plurality of sealing gaskets (19) are respectively slidably connected to the inner sides of the plurality of connection pipes (1801).

8. The adsorption decolorization device for stevia extract according to claim 7, characterized in that: The connection mechanism further comprises: a fixed protrusion (20), a limiting slider (2001), a fixed push plate (2002) and a compression spring (2003); the fixed protrusion (20) is provided in two groups, and the two groups of fixed protrusions (20) are respectively fixedly connected to the outer sides of the two feeding pipes (5) and the two discharging pipes (6); the limiting slider (2001) is provided in two groups, and the two groups of limiting sliders (2001) are respectively slidably connected to the inner sides of the two groups of fixed protrusions (20); the fixed push plate (2002) is provided in two groups, and the two groups of fixed push plates (2002) are respectively fixedly connected to the outer sides of the two groups of limiting sliders (2001); the compression spring (2003) is provided in two groups, and one end of the two groups of compression springs (2003) is respectively fixedly connected to the outer sides of the two groups of limiting sliders (2001), and the other end of the two groups of compression springs (2003) is respectively fixedly connected to the inner sides of the two groups of fixed protrusions (20).

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