Sophorolipid fermentation product decolorizing device and method suitable for industrial application

Abstract

The invention discloses a sophorolipid fermentation product decolorizing device and method suitable for industrial application, and belongs to the technical field of microbiological processing decolorizing devices and methods.The sophorolipid fermentation product decolorizing device comprises a barrel, and a stand column arranged on the ground is installed at the bottom of the barrel; the rotary stirring mechanism comprises a motor fixed to the center of the bottom of the barrel, an output shaft of the motor penetrates through the barrel and sequentially extends to a reciprocating lead screw and a transmission shaft, a first sliding block is arranged on the outer wall of the reciprocating lead screw in a spiral transmission mode, and a conical rod is installed on the first sliding block through a cross beam in an inserted connection mode; the upper and lower ends of the outer wall of the transmission shaft are respectively connected with a first stirring rod and a fixing sleeve. The device can solve the technical problems that a solution cannot be fully contacted and fused with a sophorolipid fermentation product, so that the decoloration work of materials is influenced, the product quality is reduced, an independent separation structure is needed between magnetic ferroferric oxide nano microspheres and the solution for separation work, and the working efficiency is not favorably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of microbial processing decolorization devices and methods, and specifically relates to a decolorization device and method for a sophorolipid fermentation product suitable for industrial application. Background Art

[0002] Sophorolipids are microbial secondary metabolites produced by Candida albicans through fermentation of carbon sources such as sugars and vegetable oils, and belong to the glycolipid class of biosurfactants. The molecular structure of sophorolipids is composed of hydrophilic sophorose and hydrophobic saturated or unsaturated long-chain hydroxy fatty acids, and is divided into lactone type and acid type. Lactone type sophorolipids have good surface tension reduction and antibacterial activity, while acid type sophorolipids have good foam formation ability and solubility.

[0003] The principle of decolorization of the sophorolipid fermentation product mainly includes the following steps: adding PBS phosphate buffer: PBS phosphate buffer is used to maintain the pH value of the solution stable, adding hydrogen peroxide solution: hydrogen peroxide, as a strong oxidant, can oxidize the pigment molecules in the fermentation product, thereby achieving the decolorization effect, and magnetic ferroferric oxide nanoparticles can be added: these nanoparticles have strong magnetism, can adsorb and aggregate pigment molecules, and further promote the decolorization process. However, in the above process, if the solution cannot fully contact and fuse with the sophorolipid fermentation product, it will affect the decolorization of the material and reduce the product quality. In addition, the magnetic ferroferric oxide nanoparticles also need to be separated from the solution after the pigment adsorption is completed, so as to facilitate subsequent reuse, but the existing mechanism requires a separate separation structure for separation, which is not conducive to improving work efficiency. Summary of the invention

[0004] The object of the present invention is to provide a decolorization device and method for a sophorolipid fermentation product suitable for industrial application, so as to solve the technical problems that the solution cannot fully contact and fuse with the sophorolipid fermentation product, which affects the decolorization of the material and reduces the product quality, and the magnetic ferroferric oxide nanospheres and the solution need a separate separation structure for separation, which is not conducive to improving the work efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The decolorization device of sophorolipid fermentation product suitable for industrial application includes:

[0007] A cylinder, wherein a column placed on the ground is installed at the bottom of the cylinder;

[0008] A rotary stirring mechanism, the rotary stirring mechanism comprises a motor fixed at the center of the bottom of the cylinder, the output shaft of the motor penetrates the cylinder and extends to the reciprocating screw and the transmission shaft in sequence, the outer wall of the reciprocating screw is spirally driven with a first slider, and a tapered rod is installed on the first slider through a crossbeam;

[0009] The upper and lower ends of the outer wall of the transmission shaft are respectively connected to a first stirring rod and a fixed sleeve, a cam is fixedly installed on the first stirring rod, and the outer wall of the cam is in contact with a work-shaped block installed on the panel, and the notches at both ends of the work-shaped block are provided with arc surfaces connected to the cam, and an arc groove is formed between the arc surface and the inner wall of the work-shaped block, and the outer wall of the panel is provided with a sliding groove along the height direction of the inner wall of the cylinder, and one side of the bottom end of the panel is connected to a fixed plate placed on the side wall of the cylinder through a compression spring, and the other side is installed on the filter plate through a synchronous rod, and a filter hole adapted for matching with the conical rod is provided on the filter plate, a through hole placed on the fixed sleeve is provided at the center of the filter plate, and protrusions are integrally formed and connected at both ends of the center of the filter plate, and the protrusions are connected with strip grooves along the height direction of the fixed sleeve, and an anti-slip pad is installed on the edge of the outer wall of the filter plate.

[0010] Furthermore, an outer gear ring is fixedly mounted at one end of the first stirring rod, and the outer gear ring is meshed with an inner gear ring disposed on the side wall of the cylinder. The top of the inner gear ring is connected to a second stirring rod disposed inside the cylinder through a telescopic assembly, and the first stirring rod and the second stirring rod are arranged to rotate in opposite directions.

[0011] Furthermore, the telescopic assembly includes a telescopic cylinder, and the upper and lower ends of the telescopic cylinder are integrally formed with a fixing part, and the two ends of the fixing part are respectively abutted and connected to the upper cover plate and the lower cover plate, and one end of the upper cover plate and the lower cover plate is provided with a concave opening, and the inner walls of the upper cover plate and the lower cover plate are movably connected with a guide wheel that contacts and fits with the fixing part.

[0012] Furthermore, a bending plate is fixedly installed on one end of the upper cover plate and the lower cover plate near the side wall of the cylinder, and one end of the bending plate is connected to a second slider via a swing rod. The swing rod is symmetrically arranged relative to the center of the second slider, and both sides of the swing rod are connected to the bending plate and the second slider by a rotational connection, and the second slider is connected to a limiting groove along the length direction of the side wall of the cylinder.

[0013] Furthermore, a movable opening is formed between the bending plate, the swing rod and the side wall of the cylinder, and the outer wall of the bending plate is detachably mounted on the upper cover plate and the lower cover plate, and the upper cover plate and the lower cover plate are connected to the telescopic cylinder by limiting the covering. When the motor is started and the telescopic cylinder moves inward, the swing rod drives the guide wheels connected to the upper cover plate and the lower cover plate to move inward synchronously.

[0014] Furthermore, the reciprocating screw and the transmission shaft are fixedly connected via a coupling, and the vertical center axes of the reciprocating screw and the transmission shaft are maintained on the same axis.

[0015] Furthermore, a rolling groove disposed on the top of the inner wall of the cylinder is provided at the top of the transmission shaft, and a sealing ring disposed on a fixed sleeve is provided at the center of the filter plate.

[0016] A method for decolorizing a sophorolipid fermentation product suitable for industrial application comprises the following steps:

[0017] S1.1, the fermented sophorolipid product is put into the cylinder, the weight ratio of the sophorolipid product to the PBS phosphate buffer is set according to the setting, and the PBS phosphate buffer is added to maintain the pH value of the solution stable;

[0018] S1.2. The weight of the sophorolipid product and the hydrogen peroxide solution is set according to the setting, and the addition of hydrogen peroxide solution can oxidize the pigment molecules in the fermentation product, and the rotating stirring mechanism is started to allow the sophorolipid product and the solution to be fully in contact, so as to achieve the decolorization effect;

[0019] S1.3. Add an appropriate amount of magnetic ferroferric oxide nanoparticles to further promote the decolorization process through adsorption, and under the up and down movement of the filter plate, the magnetic ferroferric oxide nanoparticles are separated from the sophorolipid product, thereby achieving the purpose of reuse.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] (1) A rotating stirring mechanism is provided. After the motor is started, it can drive the rotation of the transmission shaft. During the rotation process, the transmission shaft can drive the first stirring rod to rotate, so that the solution and the sophorolipid fermentation product are uniformly stirred. In addition, the outer gear ring on the transmission shaft can allow the second stirring rod on the inner gear ring to keep rotating in the opposite direction to the first stirring rod through the gear meshing transmission effect, so that the solution and the sophorolipid fermentation product can be further stirred and fused, thereby improving the decolorization quality. At the same time, during the rotation process, the transmission shaft can be in contact with the I-shaped block on the panel. Under the action of the compression spring, the filter plate can be moved up and down. The filter holes on the filter plate are mainly used to effectively separate the magnetic ferroferric oxide nano-microspheres from the solution, so as to facilitate the reuse of the magnetic ferroferric oxide nano-microspheres. In addition, the filter plate can contact with the conical rod during the movement, thereby effectively preventing the filter holes from being blocked, thereby improving the stability of the device.

[0022] (2) A screw rotation mechanism is provided. When the motor drives the reciprocating screw to rotate, the power can be stably transmitted to the transmission shaft under the action of the coupling. Moreover, the reciprocating screw can drive the tapered rod on the crossbeam to move up and down under the action of the spiral transmission, so that the tapered rod can move in the filter hole, thereby further preventing the filter hole from being blocked. At the same time, the fixed sleeve connected to the protrusion on the filter plate can facilitate the free rotation of the transmission shaft and avoid interference between structural parts. On the other hand, when the filter plate moves up and down, the strip groove can effectively ensure the accuracy of the filter plate movement and prevent position deviation.

[0023] (3) A telescopic assembly is provided, and an upper cover plate and a lower cover plate movably connected at the upper and lower ends of the telescopic cylinder are rotated under the action of rolling friction through the provided fixed part cooperating with the guide wheel. The telescopic cylinder can effectively reduce friction during the rotation process, reduce friction damage, and increase the service life of the device. The upper cover plate and the lower cover plate can be easily detachably connected to the telescopic cylinder, which is convenient for personnel operation and timely replacement when damaged. In addition, when the telescopic cylinder moves up and down under the action of centrifugal force and friction during the rotation process, in order to avoid separation from the upper cover plate and the lower cover plate, a second slider connected to a swing rod is provided, so that the guide wheels on the upper cover plate and the lower cover plate can fit tightly on the telescopic cylinder. At the same time, when the telescopic cylinder moves up and down, it can also drive the second stirring rod to move up and down accordingly. In this way, the second stirring rod can perform adaptive stirring work at different heights, greatly improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic structural diagram of a sophorolipid fermentation product decolorization device suitable for industrial application of the present invention;

[0026] Figure 2 It is a cross-sectional schematic diagram of a sophorolipid fermentation product decolorization device suitable for industrial application in the front view direction of the present invention;

[0027] Figure 3 The structure diagram of the rotary stirring mechanism of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 4 The structure diagram of the rotary stirring mechanism of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 5 It is a structural schematic diagram of the I-shaped block of the present invention;

[0030] Figure 6 It is a schematic diagram of the connection between the filter plate and the fixed sleeve of the present invention;

[0031] Figure 7 is a schematic diagram of the connection between the internal gear ring and the telescopic assembly of the present invention;

[0032] Figure 8 The present invention Figure 2 A magnified image of point A;

[0033] Fig. 9 The present invention is a schematic flow diagram of a method for decolorizing a sophorolipid fermentation product suitable for industrial application.

[0034] 1. The present invention relates to a cylinder; a rotating stirring mechanism; a motor; a reciprocating screw; a transmission shaft; a first slider; a conical rod; a first stirring rod; a fixing sleeve; a cam; a panel; a I-shaped block; a curved surface; a compression spring; a fixing plate; a synchronous rod; a filter plate; a filter hole; a through hole; a protrusion; a strip groove; a outer gear ring; a inner gear ring; a telescopic assembly; a second stirring rod; a telescopic cylinder; a fixing portion; a top cover; a bottom cover; a guide wheel; a bending plate; a swing rod; a second slider; a coupling; a coupling. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Reference Manual Attached Figure 1 and attached Figure 2 As shown, a decolorization device for sophorolipid fermentation products suitable for industrial application comprises: a cylinder 1, a column placed on the ground is installed at the bottom of the cylinder 1;

[0037] The rotary stirring mechanism 2 includes a motor 3 fixed at the bottom center of the cylinder 1, the output shaft of the motor 3 passes through the cylinder 1 and extends to the reciprocating screw 4 and the transmission shaft 5 in sequence, the outer wall of the reciprocating screw 4 is spirally driven with a first slider 6, and a tapered rod 7 is installed on the first slider 6 through a crossbeam;

[0038] The upper and lower ends of the outer wall of the transmission shaft 5 are respectively connected to the first stirring rod 8 and the fixed sleeve 9, the first stirring rod 8 is fixedly installed with a cam 10, the outer wall of the cam 10 is in contact with a protruding block 12 installed on the panel 11, and the notches at both ends of the protruding block 12 are provided with arc surfaces 13 connected to the cam 10, and an arc groove is formed between the arc surface 13 and the inner wall of the protruding block 12, and the outer wall of the panel 11 is provided with a slide groove along the height direction of the inner wall of the cylinder 1, and one side of the bottom end of the panel 11 is connected to a fixed plate 15 placed on the side wall of the cylinder 1 through a compression spring 14, and the other side is installed on the filter plate 17 through a synchronous rod 16, and the filter plate 17 is provided with a filter hole 18 adapted to the conical rod 7, and a through hole 19 placed on the fixed sleeve 9 is opened at the center of the filter plate 17, and the two ends of the center of the filter plate 17 are integrally formed with a protrusion 20, and the protrusion 20 is connected with a strip groove 21 along the height direction of the fixed sleeve 9, and an anti-slip pad is installed on the edge of the outer wall of the filter plate 17.

[0039] Specifically, when the protrusion 20 on the filter plate 17 moves in the strip groove 21, the filter plate 17 can be ensured to move up and down accurately, and position deviation can be prevented. At the same time, the anti-slip pad on the outer wall of the filter plate 17 can effectively reduce friction damage when the filter plate 17 moves normally on the inner wall of the cylinder 1, and avoid wear of structural parts. At the same time, the through hole 19 on the filter plate 17 is conducive to the free rotation of the transmission shaft 5, and can provide corresponding activity space for the rotation of the transmission shaft 5.

[0040] The transmission shaft 5 is movably connected in the fixed sleeve 9, and the fixed sleeve 9 is fixed to the side wall of the cylinder 1 through a bracket, so that the bracket can provide corresponding supporting force for the fixed sleeve 9, and the protrusion 20 on the filter plate 17 is also movably connected in the strip groove 21 of the fixed sleeve 9, which can effectively avoid interference between moving parts.

[0041] A rotating stirring mechanism 2 is provided. After the motor 3 is started, it can drive the rotation of the transmission shaft 5. The transmission shaft 5 can drive the first stirring rod 8 to rotate during the rotation process, so that the solution and the sophorolipid fermentation product are evenly stirred. In addition, the outer gear ring 22 on the transmission shaft 5 can allow the second stirring rod 25 on the inner gear ring 23 to keep rotating in the opposite direction to the first stirring rod 8 through the gear meshing transmission effect, so that the solution and the sophorolipid fermentation product can be further stirred and fused, thereby improving the decolorization quality. At the same time, during the rotation process, the transmission shaft 5 can be in contact with the I-shaped block 12 on the panel 11. Under the action of the compression spring 14, the filter plate 17 can be moved up and down. The filter hole 18 on the filter plate 17 is mainly to effectively separate the magnetic ferroferric oxide nano-microspheres from the solution, so as to facilitate the reuse of the magnetic ferroferric oxide nano-microspheres, and the filter plate 17 can contact with the tapered rod 7 during the movement, so as to effectively prevent the filter hole 18 from being blocked, thereby improving the stability of the device.

[0042] refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 An outer gear ring 22 is fixedly mounted at one end of the first stirring rod 8, and an inner gear ring 23 disposed on the side wall of the cylinder 1 is meshed and driven on the outer gear ring 22. The top of the inner gear ring 23 is connected to a second stirring rod 25 disposed inside the cylinder 1 through a telescopic assembly 24, and the first stirring rod 8 and the second stirring rod 25 are arranged to rotate in opposite directions.

[0043] Specifically, the meshing transmission between the inner gear ring 23 and the outer gear ring 22 allows the first stirring rod 8 and the second stirring rod 25 to maintain reverse rotation. The reverse rotation setting allows the sophorolipid fermentation product and the solution to be fully stirred and mixed, which is beneficial to improving the decolorization quality. During the rotation process, the first stirring rod 8 can be in contact with the I-shaped block 12 on the panel 11 through the cam 10, so that the panel 11 can be moved up and down in cooperation with the compression spring 14 on the fixed plate 15, and the arc surface 13 on the I-shaped block 12 is set to cooperate with the contact connection of the cam 10. Due to the large contact area between the two, the force pressure can be reduced during the contact and fitting process, and the collision damage can be reduced. At the same time, the cam 10 can also rotate normally and smoothly.

[0044] In addition, the synchronization rod 16 on the panel 11 can not only effectively support the connection filter plate 17, but also drive the filter plate 17 to move up and down. The connection between the filter plate 17 and the synchronization rod 16 can be connected by a bolt assembly or a positioning pin locking and fixing method, which can facilitate personnel to carry out effective installation and disassembly work, and has good positioning effect and stable structural connection.

[0045] A screw rotation mechanism is provided. When the motor 3 drives the reciprocating screw 4 to rotate, under the action of the coupling 34, the power can be stably transmitted to the transmission shaft 5, and the reciprocating screw 4 can drive the tapered rod 7 on the crossbeam to move up and down under the action of the spiral transmission, so that the tapered rod 7 can move in the filter hole 18, thereby further preventing the filter hole 18 from being blocked. At the same time, the fixing sleeve 9 connected to the protrusion 20 on the filter plate 17 can facilitate the free rotation of the transmission shaft 5 and avoid interference between structural parts. On the other hand, when the filter plate 17 moves up and down, the strip groove 21 can effectively ensure the accuracy of the movement of the filter plate 17 and prevent position deviation.

[0046] refer to Figure 2 , Figure 7 and Figure 8The telescopic assembly 24 includes a telescopic cylinder 26, and the upper and lower ends of the telescopic cylinder 26 are integrally formed with a fixing portion 27, and the two ends of the fixing portion 27 are respectively abutted and connected to the upper cover plate 28 and the lower cover plate 29. One end of the upper cover plate 28 and the lower cover plate 29 is provided with a concave opening, and the inner walls of the upper cover plate 28 and the lower cover plate 29 are movably connected with a guide wheel 30 that contacts and fits with the fixing portion 27.

[0047] A bending plate 31 is fixedly installed on one end of the upper cover plate 28 and the lower cover plate 29 near the side wall of the cylinder 1, and one end of the bending plate 31 is connected to the second slider 33 through a swing rod 32. The swing rod 32 is symmetrically arranged relative to the center of the second slider 33, and the bending plate 31 and the second slider 33 are connected to both sides of the swing rod 32 in a rotationally connected manner. The second slider 33 is connected to a limiting groove along the length direction of the side wall of the cylinder 1.

[0048] During the rotation of the swing rod 32, by means of the rotation connection, the guide wheel 30 connected to the bending plates 31 at both ends can be closely attached to the telescopic cylinder 26, thereby providing corresponding rolling friction therefor, thereby reducing friction damage.

[0049] Specifically, a movable opening is formed between the bending plate 31, the swing rod 32 and the side wall of the cylinder 1. The outer wall of the bending plate 31 is detachably mounted on the upper cover plate 28 and the lower cover plate 29, and the upper cover plate 28 and the lower cover plate 29 are connected to the telescopic cylinder 26 by limiting the covering. When the motor 3 is started and the telescopic cylinder 26 moves inward, the swing rod 32 drives the guide wheel 30 connected to the upper cover plate 28 and the lower cover plate 29 to move inward synchronously. The reciprocating screw 4 and the transmission shaft 5 are fixedly connected by a coupling 34, and the vertical central axes of the reciprocating screw 4 and the transmission shaft 5 are maintained on the same axis. A rolling groove is provided on the top of the inner wall of the cylinder 1, and a sealing ring is provided on the fixed sleeve 9 at the center of the filter plate 17.

[0050] A telescopic assembly 24 is provided, and an upper cover plate 28 and a lower cover plate 29 are movably connected at the upper and lower ends of the telescopic cylinder 26. The fixed portion 27 is provided to cooperate with the guide wheel 30 to rotate under the action of rolling friction, so that the telescopic cylinder 26 can effectively reduce friction during the rotation process, reduce friction damage, and improve the service life of the device. The upper cover plate 28 and the lower cover plate 29 can be easily detachably connected to the telescopic cylinder 26, which is convenient for personnel operation and convenient for timely replacement when damaged. In addition, when the telescopic cylinder 26 moves up and down under the centrifugal and friction effects during the rotation process, in order to avoid separation between the upper cover plate 28 and the lower cover plate 29, a second slider 33 connected to the swing rod 32 is provided, so that the guide wheels 30 on the upper cover plate 28 and the lower cover plate 29 can be tightly fitted on the telescopic cylinder 26. At the same time, when the telescopic cylinder 26 moves up and down, it can also drive the second stirring rod 25 to move up and down accordingly, so that the second stirring rod 25 can perform adaptive stirring work at different height positions, which greatly improves the applicability of the device.

[0051] refer to Fig. 9 , a method for decolorizing a sophorolipid fermentation product suitable for industrial application, comprising the following steps:

[0052] S1.1, the fermented sophorolipid product is put into the cylinder 1, the sophorolipid product and PBS phosphate buffer are prepared according to a weight ratio of 1:3, and PBS phosphate buffer is added to maintain the pH value of the solution stable;

[0053] S1.2, the weight of the sophorolipid product and the hydrogen peroxide solution is set at 1:2, and the addition of hydrogen peroxide solution can oxidize the pigment molecules in the fermentation product, and the rotating stirring mechanism 2 is started to allow the sophorolipid product and the solution to be fully in contact, so as to achieve the decolorization effect;

[0054] S1.3. Add an appropriate amount of magnetic ferroferric oxide nano-microspheres to further promote the decolorization process through adsorption, and under the up and down movement of the filter plate 17, the magnetic ferroferric oxide nano-microspheres are separated from the sophorolipid product, thereby achieving the purpose of reuse.

[0055] The entire sophorolipid fermentation product decolorization method is reasonably designed and has strong integrated performance. The sophorolipid fermentation product can be effectively recovered and decolorized, and the resources can be effectively recycled and reused, which is energy-saving and environmentally friendly. The efficient recovery of the sophorolipid fermentation product is achieved, and the magnetic ferric oxide nanospheres are separated from the solution and the sophorolipid fermentation product through a screening and separation mechanism for reuse, which effectively reduces the waste of resources.

[0056] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0057] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A decolorization device for sophorolipid fermentation products suitable for industrial application, characterized in that: include: A cylinder (1), wherein a column placed on the ground is installed at the bottom of the cylinder (1); A rotary stirring mechanism (2), the rotary stirring mechanism (2) comprising a motor (3) fixed at the bottom center of the cylinder (1), the output shaft of the motor (3) passing through the cylinder (1) and extending to a reciprocating screw (4) and a transmission shaft (5) in sequence, the outer wall of the reciprocating screw (4) being spirally driven with a first slider (6), and a tapered rod (7) being installed on the first slider (6) through a crossbeam; The upper and lower ends of the outer wall of the transmission shaft (5) are respectively connected to a first stirring rod (8) and a fixed sleeve (9); a cam (10) is fixedly mounted on the first stirring rod (8); the outer wall of the cam (10) is abutted against and connected to an I-shaped block (12) mounted on a panel (11); arcuate surfaces (13) connected to the cam (10) are provided at notches at both ends of the I-shaped block (12).

2. The decolorization device for sophorolipid fermentation products suitable for industrial application according to claim 1, characterized in that: An outer gear ring (22) is fixedly mounted on one end of the first stirring rod (8), and the outer gear ring (22) is meshed with an inner gear ring (23) disposed on the side wall of the cylinder (1). The top of the inner gear ring (23) is connected to a second stirring rod (25) disposed inside the cylinder (1) via a telescopic assembly (24), and the first stirring rod (8) and the second stirring rod (25) are arranged to rotate in opposite directions.

3. The decolorization device for sophorolipid fermentation products suitable for industrial application according to claim 2, characterized in that: The telescopic assembly (24) comprises a telescopic cylinder (26), the upper and lower ends of the telescopic cylinder (26) are integrally formed with a fixing portion (27), the two ends of the fixing portion (27) are respectively abutted against and connected to an upper cover plate (28) and a lower cover plate (29), one end of the upper cover plate (28) and the lower cover plate (29) are provided with a concave opening, and the inner walls of the upper cover plate (28) and the lower cover plate (29) are movably connected with a guide wheel (30) that contacts and fits with the fixing portion (27).

4. The decolorization device for sophorolipid fermentation products suitable for industrial application according to claim 3, characterized in that: A bending plate (31) is fixedly mounted on one end of the upper cover plate (28) and the lower cover plate (29) close to the side wall of the cylinder (1); one end of the bending plate (31) is connected to a second slider (33) via a swing rod (32); the swing rod (32) is symmetrically arranged relative to the center of the second slider (33); and both sides of the swing rod (32) are connected to the bending plate (31) and the second slider (33) in a rotatable manner; the second slider (33) is connected to a limiting groove along the length direction of the side wall of the cylinder (1).

5. The decolorization device for sophorolipid fermentation products suitable for industrial application according to claim 4, characterized in that: A movable opening is formed between the bending plate (31), the swing rod (32) and the side wall of the cylinder (1); the outer wall of the bending plate (31) is detachably mounted on the upper cover plate (28) and the lower cover plate (29); and the upper cover plate (28) and the lower cover plate (29) are connected to the telescopic cylinder (26) by means of a limited cover. When the motor (3) is started and the telescopic cylinder (26) telescopes inward, the swing rod (32) drives the guide wheels (30) connected to the upper cover plate (28) and the lower cover plate (29) to move inward synchronously.

6. The decolorization device for sophorolipid fermentation products suitable for industrial application according to claim 1, characterized in that: The reciprocating screw (4) and the transmission shaft (5) are fixedly connected via a coupling (34), and the vertical center axes of the reciprocating screw (4) and the transmission shaft (5) are maintained on the same axis.

7. The decolorization device for sophorolipid fermentation products suitable for industrial application according to claim 1, characterized in that: The top of the transmission shaft (5) is provided with a rolling groove placed on the top of the inner wall of the cylinder (1), and the center of the filter plate (17) is provided with a sealing ring placed on the fixing sleeve (9).

8. The decolorization device for sophorolipid fermentation products suitable for industrial application according to claim 1, characterized in that: An arcuate groove is formed between the arcuate surface (13) and the inner wall of the I-shaped block (12); a slide groove is provided on the outer wall of the panel (11) along the height direction of the inner wall of the cylinder (1); one side of the bottom end of the panel (11) is connected to a fixing plate (15) disposed on the side wall of the cylinder (1) via a compression spring (14); and the other side is mounted on a filter plate (17) via a synchronization rod (16); and a filter hole (18) adapted to the conical rod (7) is provided on the filter plate (17).

9. The decolorization device for sophorolipid fermentation products suitable for industrial application according to claim 8, characterized in that: A through hole (19) disposed on the fixing sleeve (9) is provided at the center of the filter plate (17), and protrusions (20) are integrally formed and connected at both ends of the center of the filter plate (17), the protrusions (20) are connected to strip grooves (21) along the height direction of the fixing sleeve (9), and an anti-slip pad is installed on the outer wall edge of the filter plate (17).

10. A method for decolorizing a sophorolipid fermentation product suitable for industrial application, applied to a device for decolorizing a sophorolipid fermentation product suitable for industrial application according to any one of claims 1 to 9, characterized in that: The steps include: S1.

1. The fermented sophorolipid product is put into the cylinder (1), the sophorolipid product and PBS phosphate buffer are mixed in a weight ratio of 1:3, and PBS phosphate buffer is added to maintain the pH value of the solution stable; S1.2, the weight ratio of the sophorolipid product to the hydrogen peroxide solution is set at 1:2, and the addition of hydrogen peroxide solution can oxidize the pigment molecules in the fermentation product, and the rotating stirring mechanism (2) is started to allow the sophorolipid product and the solution to be fully in contact, so as to achieve the decolorization effect; S1.

3. Add an appropriate amount of magnetic ferroferric oxide nanoparticles to further promote the decolorization process through adsorption, and under the up and down movement of the filter plate (17), the magnetic ferroferric oxide nanoparticles are separated from the sophorolipid product, thereby achieving the purpose of reuse.

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