Decoloration device and decoloration method for extracting oyster peptide

Abstract

The invention discloses a decoloring device and a decoloring method for extracting oyster peptide, and belongs to the field of oyster peptide decoloring. The filtering part is arranged in the decolorizing barrel and is positioned at the bottom end of the stirring part; the supporting circular plate is arranged between the stirring part and the filtering part so as to isolate the space between the stirring part and the filtering part; and the sealing connecting part is arranged on the supporting circular plate so as to ensure communication or closing between the stirring part and the filtering part. According to the invention, the filtering part is arranged to filter a decolored solution so as to realize solid-liquid separation, and the sealing connection part is arranged to be cooperatively connected with the stirring part and the scraping part, so that during filtering, the scraping part automatically and repeatedly scrapes the filter cartridge so as to prevent solids from blocking meshes of the filter cartridge, and the filtering efficiency is improved; by arranging the cleaning part, the exterior of the filter cartridge is regularly cleaned, so that the filter cartridge is ensured to be clean and tidy.

Description

Technical Field

[0001] The invention relates to the field of oyster peptide decolorization, and more specifically to a decolorization device and a decolorization method for extracting oyster peptides. Background Art

[0002] Oyster peptides are made by applying peptide molecular biotechnology to the oyster processing process and enzymatically hydrolyzing them. The small molecule oligopeptides formed by this production method completely retain the original vitamins, trace elements, taurine and other nutrients of the oysters, making the oysters rich in nucleic acids more quickly absorbed by the human body than single amino acids or proteins, and more easily absorbed by the body. They have more important biological activity in human metabolism and can effectively increase male serum testosterone levels. They have higher biological efficacy and more important physiological functions than ordinary oyster products. The extract extracted by rough processing has a certain color and needs to be decolorized.

[0003] During decolorization, an enzymatic hydrolyzate containing oyster peptides is first obtained through an enzymatic hydrolysis process, and then the decolorizing agent and the enzymatic hydrolyzate are fully mixed, and then the enzymatic hydrolyzate is filtered out to complete the decolorization; during the decolorization process, solids are easy to clog the mesh during filtration, resulting in poor filtration; at the same time, the filter is difficult to clean conveniently.

[0004] In view of this, in view of the above-mentioned deficiencies, the present invention improves and optimizes the filtration in the prior art, and develops a decolorization device and a decolorization method for extracting oyster peptides. Summary of the invention

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A decolorization device and decolorization method for extracting oyster peptides, comprising: a decolorization barrel; and also comprising: A top cover, arranged on the top of the decolorizing barrel; A conical bottom plate, arranged at the bottom end of the decolorizing barrel; A feeding part, arranged on the decolorizing barrel; A stirring part is arranged in the decolorizing barrel to stir the extract; A filtering part, which is arranged inside the decolorizing barrel and is located at the bottom end of the stirring part; A supporting circular plate is disposed between the stirring portion and the filtering portion to isolate the space between the stirring portion and the filtering portion; A sealing connection part, arranged on the supporting circular plate, to ensure the connection or closure between the stirring part and the filtering part; A scraping part is arranged in the filtering part to ensure the filtering effect of the filtering part; A cleaning part connected to the sealing connection part to clean the filter part; A discharge portion, disposed on the conical bottom plate, to separate solid impurities; The sealing connection portion comprises: A rubber ring, sleeved on the central through hole of the supporting circular plate; A sealing plug, arranged on the rubber ring; There are two electromagnets, which are symmetrically arranged on the supporting circular plate; A first limiting groove is provided on the sealing plug to cooperate with the scraping portion.

[0007] Furthermore, the stirring unit comprises: A first motor is arranged at the center of the top cover; A first rotating shaft, one end of which is connected to the output end of the first motor; Stirring rods are provided in a plurality of groups, and the plurality of stirring rod arrays are provided on the first rotating shaft; The first square groove is formed on an end of the first rotating shaft away from the first motor.

[0008] Furthermore, the filter unit comprises: A second limiting groove is provided on the conical bottom plate; A filter cartridge, one end of which is placed in the second limiting groove; A limiting ring is arranged at the bottom end of the supporting circular plate and is limitedly connected to the top end of the filter cartridge.

[0009] Furthermore, the scraping part comprises: A second limiting block slides in the first limiting groove; A second limiting square rod, one end of which is connected to the second limiting square block and is limitedly and slidably connected to the first limiting groove; A support block, disposed on the conical bottom plate; A second rotating shaft, one end of which is connected to the other end of the second limiting square rod, and the other end of which is placed on the supporting block; A plurality of movable connecting shafts are provided, wherein the plurality of movable connecting shafts are connected to the second rotating shaft via movable parts; The scraper plate is hinged to the other end of the movable connecting shaft.

[0010] Furthermore, the movable part comprises: A first rotating groove is provided on the second rotating shaft and is hinged to one end of the second rotating shaft; A stopper, arranged on the movable connecting shaft; A limit spring has one end connected to the inside of the first rotation groove and the other end connected to the stopper.

[0011] Furthermore, the cleaning unit comprises: A water inlet pipe is arranged on the outer surface of the decolorizing barrel; A water trough is provided on the supporting circular plate and is connected with the water inlet pipe; A connecting water pipe is arranged at the bottom end of the supporting circular plate and is connected with the water trough; A plurality of groups of high-pressure nozzles are provided, and the plurality of groups of high-pressure nozzles are sequentially arranged on the connecting water pipes, and the high-pressure nozzles face the filter cartridge.

[0012] Furthermore, the discharging part comprises: A discharge pipe connected to the bottom end of the conical bottom plate; A first ball valve is arranged inside the discharge pipe; a second motor, which is disposed on the discharge pipe and has an output end connected to the first ball valve to control the opening or closing of the first ball valve; a second ball valve, disposed in the discharge pipe and located at the bottom end of the first ball valve; The third motor is arranged on the discharge pipe, and the output end of the third motor is connected to the second ball valve to control the opening or closing of the second ball valve.

[0013] Furthermore, the feeding part comprises: A feeding pipe is arranged on the top cover and is used for placing a decolorizing agent; A liquid inlet pipe is arranged on the top cover at one end away from the feed pipe for placing the enzymolysis solution.

[0014] Furthermore, the sealing connection portion further comprises: A magnetic disc, disposed on the sealing plug and cooperatively connected with the electromagnet; A connecting square rod is disposed on the magnetic disc and is cooperatively connected with the first rotating shaft; The connecting square cone is arranged on the other end of the connecting square rod to be matched and connected with the first square groove.

[0015] The present invention also provides a decolorization method applicable to the above-mentioned decolorization device for extracting oyster peptides, comprising the following steps: S1. Prepare an enzymatic hydrolysate containing oyster peptides, and put the enzymatic hydrolysate into the stirring part of the decolorizing barrel from the liquid inlet pipe, and at the same time put the prepared decolorizing agent into the stirring part of the decolorizing barrel from the feed pipe; S2, start the first motor to drive the first rotating shaft to rotate, and then drive the stirring rod to rotate, so that the enzymatic solution and the decolorizing agent are fully mixed; S3, the fully mixed liquid flows into the filter part, the electromagnet is started, the magnetic disc is driven to move upward, thereby driving the connecting square rod and the connecting square cone to move upward into the first square groove, so that the connecting square rod and the connecting square cone rotate with the first rotating shaft, the connecting square rod drives the second rotating shaft to rotate through the magnetic disc, the sealing plug and the first limiting groove, thereby driving the scraping plate to rotate through the movable connecting rod, and repeatedly scraping the inner wall of the filter cartridge; S4. The decolorized enzymatic hydrolyzate flows out from the liquid outlet pipe through the filter cartridge, and the filtered solid impurities are separated from the discharge part, completing the decolorization.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by providing a filtering part, the solution after decolorization is filtered to separate the solid and the liquid; by providing a sealing connection part that is connected with the stirring part and the scraping part, during filtering, the scraping part automatically and repeatedly scrapes the filter cartridge to prevent solids from being blocked on the mesh of the filter cartridge, thereby improving the filtering efficiency; by providing a cleaning part, the outside of the filter cartridge is regularly cleaned to ensure that the filter cartridge is clean and tidy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a first stereogram of the present invention; Figure 2 is a second stereogram of the present invention; Figure 3 It is a first exploded perspective view of the present invention; Figure 4 It is a first partial stereogram of the present invention; Figure 5 It is a second partial stereogram of the present invention; Figure 6 For the present invention Figure 5 A in the enlarged view; Figure 7 It is a third partial stereogram of the present invention; Figure 8 It is a cross-sectional perspective view of the present invention; Fig. 9 For the present invention Figure 8 The enlarged view of point B in the figure; Fig.10 For the present invention Figure 8 The enlarged view of point C in the figure; Fig.11It is a partial cross-sectional stereoscopic view of the present invention.

[0019] Description of the numbers in the figure: 1. Decolorizing barrel; 101. Top cover; 102. Conical bottom plate; 103. Support frame; 104. Liquid inlet pipe; 105. Feed pipe; 106. Liquid outlet pipe; 107. Water inlet pipe; 201. First motor; 202. First rotating shaft; 203. Stirring rod; 204. First square groove; 301. Supporting circular plate; 302. Connecting square rod; 303. Connecting square cone; 304. Magnetic disc; 305. Electromagnet; 306. Rubber ring; 307. Sealing plug; 308. First limit groove; 3 09, water trough; 310, connecting water pipe; 311, high-pressure nozzle; 401, second rotating shaft; 402, second limiting square rod; 403, second limiting block; 404, movable connecting rod; 405, scraper plate; 406, first rotating groove; 407, stopper; 408, limiting spring; 501, discharge pipe; 502, first ball valve; 503, second motor; 504, second ball valve; 505, third motor; 6, filter cartridge; 601, second limiting groove; 602, limiting ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 11As shown, a decolorization device for extracting oyster peptides comprises: a decolorization barrel 1; further comprising: a top cover 101, arranged at the top end of the decolorization barrel 1; a conical bottom plate 102, arranged at the bottom end of the decolorization barrel 1; a feeding part, arranged on the decolorization barrel 1; a stirring part, arranged in the decolorization barrel 1, to stir the extract; a filtering part, arranged inside the decolorization barrel 1 and at the bottom end of the stirring part; a supporting circular plate 301, arranged between the stirring part and the filtering part, to isolate the space between the stirring part and the filtering part; a sealing connection part, arranged on the supporting circular plate 301, to ensure that the stirring part and the filtering part The connection or closure between them; the scraping part is arranged in the filter part to ensure the filtering effect of the filter part; the cleaning part is connected to the sealing connection part to clean the filter part; the discharging part is arranged on the conical bottom plate 102 to separate the solid impurities; the sealing connection part includes: a rubber ring 306, which is sleeved on the central through hole of the supporting circular plate 301; a sealing plug 307, which is arranged on the rubber ring 306; two electromagnets 305 are arranged, and the two electromagnets 305 are symmetrically arranged on the supporting circular plate 301; a first limiting groove 308 is opened on the sealing plug 307 to cooperate with the scraping part.

[0022] In the embodiment of the present invention, a stirring portion is provided so that the enzymatic hydrolyzate and the decolorizing agent are fully mixed during decolorization, and the decolorization is more complete; at the same time, a filtering portion is provided to filter the solution after decolorization, so as to separate the solid and the liquid; a sealing connection portion is provided to cooperate with the stirring portion and the scraping portion, so that during filtering, the scraping portion automatically and repeatedly scrapes the filter cartridge 6 to prevent solids from clogging the mesh of the filter cartridge 6, thereby improving the filtration efficiency; a cleaning portion is provided to regularly clean the outside of the filter cartridge 6 to ensure that the filter cartridge 6 is clean and tidy.

[0023] like Figures 1 to 11 As shown, the stirring part includes: a first motor 201, which is arranged at the center of the top cover 101; a first rotating shaft 202, one end of which is connected to the output end of the first motor 201; a stirring rod 203, which is provided in a plurality of groups, and a plurality of groups of the stirring rod 203 are arrayed on the first rotating shaft 202; a first square groove 204, which is opened on one end of the first rotating shaft 202 away from the first motor 201.

[0024] In the embodiment of the present invention, the enzymatic hydrolysate containing oyster peptides is prepared and put into the stirring part in the decolorizing barrel 1 from the liquid inlet pipe 104, and the prepared decolorizing agent is put into the stirring part in the decolorizing barrel 1 from the feed pipe 105; at this time, the sealing plug 307 is tightly connected with the rubber ring 306 to ensure that the liquid does not leak into the filtering part; then the first motor 201 is started to drive the first rotating shaft 202 to rotate, thereby driving the stirring rod 203 to rotate, stirring the liquid, so that the enzymatic hydrolysate and the decolorizing agent are fully mixed.

[0025] like Figures 4 to 6 As shown, the filter part includes: a second limiting groove 601, which is opened on the conical bottom plate 102; a filter cartridge 6, one end of which is placed in the second limiting groove 601; a limiting ring 602, which is arranged at the bottom end of the supporting circular plate 301 and is limitedly connected to the top end of the filter cartridge 6.

[0026] In the embodiment of the present invention, the filter cartridge 6 is placed in the second limiting groove 601, and the top of the filter cartridge 6 is limited by the limiting ring 602, so that when the filter cartridge 6 rotates, it will always be in the second limiting groove 601, so that the filter cartridge 6 rotates around its own axis, avoiding vibration during rotation.

[0027] like Figures 4 to 10 As shown, the scraping part includes: a second limiting block 403, sliding in the first limiting groove 308; a second limiting square rod 402, one end of which is connected to the second limiting block 403 and is limitedly and slidably connected to the first limiting groove 308; a support block, which is arranged on the conical bottom plate 102; a second rotating shaft 401, one end of which is connected to the other end of the second limiting square rod 402 and the other end is placed on the support block; a movable connecting shaft, which is provided with a plurality of groups, and the plurality of groups of the movable connecting shafts are connected to the second rotating shaft 401 via movable parts; a scraping plate 405, which is hinged to the other end of the movable connecting shaft.

[0028] like Figures 4 to 10 As shown, the sealing connection part also includes: a magnetic disk 304, which is arranged on the sealing plug 307 and is connected with the electromagnet 305; a connecting square rod 302, which is arranged on the magnetic disk 304 and is connected with the first rotating shaft 202; and a connecting square cone 303, which is arranged on the other end of the connecting square rod 302 to be connected with the first square groove 204.

[0029] In the embodiment of the present invention, after the enzymatic hydrolysate and the decolorizing agent are fully mixed, the first gear of the electromagnet 305 is started, the electromagnet 305 is energized, and the magnetic disc 304 is repelled, thereby driving the magnetic disc 304 to move upward, and the magnetic disc 304 drives the sealing plug 307 to move upward, so that the sealing plug 307 and the rubber ring 306 are separated, and the liquid will flow from the through hole in the middle of the supporting circular plate 301 to the filter cartridge 6 in the filtration part; after the liquid flows into the filter cartridge 6, it will pass through the filter cartridge 6 and flow out from the liquid outlet pipe 106, that is, the enzymatic hydrolysate containing oyster peptides after decolorization is completed, and the solids are either adhered to the filter cartridge 6 or The particles are deposited at the bottom of the conical bottom plate 102; at the same time, the magnetic disc 304 moves upward, driving the connecting square rod 302 and the connecting square cone 303 to move upward into the first square groove 204, so that the connecting square rod 302 and the connecting square cone 303 rotate with the first rotating shaft 202, and the connecting square rod 302 drives the second rotating shaft 401 to rotate through the magnetic disc 304, the sealing plug 307 and the first limiting groove 308, thereby driving the scraping plate 405 to rotate through the movable connecting rod 404, and repeatedly scraping the inner wall of the filter cartridge 6 to avoid solids adhering to the filter cartridge 6 during filtration, thereby affecting the filtration efficiency.

[0030] A support block (not shown) is provided and connected to the conical bottom plate 102 to support the bottom end of the second rotating shaft 401 to avoid unstable rotation.

[0031] like Figures 4 to 10 As shown, the movable part includes: a first rotating groove 406, which is opened on the second rotating shaft 401 and hinged to one end of the second rotating shaft 401; a stopper 407, which is arranged on the movable connecting shaft; and a limit spring 408, one end of which is connected to the inside of the first rotating groove 406 and the other end is connected to the stopper 407.

[0032] In the embodiment of the present invention, at the hinge between the movable connecting shaft and the second rotating shaft 401, the movable connecting shaft is angled upward compared to the horizontal plane. Thus, under the action of gravity, the movable connecting shaft drives the scraper plate 405 to move outward. At the same time, the limit spring 408 is provided to exert an outward elastic force on the movable connecting shaft, so that the scraper plate 405 can be tightly pressed against the inner wall of the filter screen; the scraper plate 405 can effectively scrape off impurities adhering to the filter screen.

[0033] like Figures 4 to 10As shown, the cleaning part includes: a water inlet pipe 107, which is arranged on the outer surface of the decolorization barrel 1; a water trough 309, which is opened on the supporting circular plate 301 and is connected with the water inlet pipe 107; a connecting water pipe 310, which is arranged at the bottom end of the supporting circular plate 301 and is connected with the water trough 309; a high-pressure nozzle 311, which is provided with several groups, and several groups of the high-pressure nozzles 311 are sequentially arranged on the connecting water pipe 310, and the high-pressure nozzle 311 is facing the filter cartridge 6.

[0034] In the embodiment of the present invention, when the filter cartridge 6 is subjected to high-pressure cleaning, high-pressure water is connected through the water inlet pipe 107, so that the high-pressure water is sprayed from the high-pressure nozzle 311 through the water trough 309 and the connecting water pipe 310, thereby spraying on the outer surface of the filter cartridge 6; the filter cartridge 6 is rotated to clean the entire filter cartridge 6; the sleeve is rotated to start the second gear of the electromagnet 305, so as to drive the magnetic disc 304 to continue to move upward, thereby driving the sealing plug 307 to move upward. Since the second limiting block 403 has moved along the first limiting groove 308 to the end facing the first limiting groove 308 when the electromagnet 305 of the first gear is energized, the sealing plug 307 continues to move upward, which will drive the second limiting block 403 to move upward, thereby passing The second limiting square rod 402 drives the second rotating shaft 401 to move upward, and the upward movement of the second rotating shaft 401 will drive the movable connecting rod 404 to rotate. Since the end of the movable connecting rod 404 close to the second rotating shaft 401 is slightly lower than the end of the scraper plate 405, the scraper plate 405 is driven to move outward. Since the scraper plate 405 has been attached to the inner wall of the filter cartridge 6, the scraper plate 405 clamps the filter screen under the action of the thrust of the movable connecting rod 404, thereby driving the filter screen to rotate together. When the filter screen rotates, it will always be in the second limiting groove 601, so that the filter cartridge 6 rotates around its own axis, avoiding vibration during rotation. At this time, the high-pressure nozzle 311 can cooperate with the rotating filter screen to fully clean the filter cartridge 6.

[0035] like Fig.11 As shown, the discharge part includes: a discharge pipe 501, connected to the bottom end of the conical bottom plate 102; a first ball valve 502, arranged inside the discharge pipe 501; a second motor 503, arranged on the discharge pipe 501, and the output end is connected to the first ball valve 502 to control the opening or closing of the first ball valve 502; a second ball valve 504, arranged in the discharge pipe 501, and at the bottom end of the first ball valve 502; a third motor 505, arranged on the discharge pipe 501, and the output end is connected to the second ball valve 504 to control the opening or closing of the second ball valve 504.

[0036] In the embodiment of the present invention, the filtered solids will eventually settle at the bottom of the conical bottom plate 102. After a certain amount of solid impurities are precipitated at the bottom, the second motor 503 is started to drive the first ball valve 502 to rotate, so that the discharge pipe 501 is connected. At this time, the solid impurities at the bottom of the conical bottom plate 102 will move between the first ball valve 502 and the second ball valve 504, and only a small amount of liquid will come in with the impurities. After closing the first ball valve 502, the third motor 505 is started to drive the second ball valve 504 to rotate, so that the channel of the second ball valve 504 is opened, thereby allowing the impurities between the first ball valve 502 and the second ball valve 504 to fall to the outside; thereby avoiding direct discharge from bringing out more liquid.

[0037] like Figure 1 As shown, the feed part includes: a feed pipe 105, which is arranged on the top cover 101 for placing a decolorizing agent; and a liquid inlet pipe 104, which is arranged on one end of the top cover 101 away from the feed pipe 105 for placing an enzymatic solution.

[0038] In the embodiment of the present invention, the decolorizing agent and the enzymatic solution are introduced through the feed pipe 105 and the liquid inlet pipe 104 ; meanwhile, a triangular support frame 103 is provided to support the decolorizing barrel 1 .

[0039] The present invention also provides a decolorization method applicable to the above-mentioned decolorization device for extracting oyster peptides, characterized in that it comprises the following steps: S1, prepare an enzymatic hydrolyzate containing oyster peptides, put the enzymatic hydrolyzate into the stirring part in the decolorization barrel 1 from the liquid inlet pipe 104, and at the same time put the prepared decolorant into the stirring part in the decolorization barrel 1 from the feed pipe 105; S2, start the first motor 201, drive the first rotating shaft 202 to rotate, and then drive the stirring rod 203 to rotate, so that the enzymatic solution and the decolorizing agent are fully mixed; S3, the fully mixed liquid flows into the filter part, the electromagnet 305 is started, the magnetic disc 304 is driven to move upward, thereby driving the connecting square rod 302 and the connecting square cone 303 to move upward into the first square groove 204, so that the connecting square rod 302 and the connecting square cone 303 rotate with the first rotating shaft 202, the connecting square rod 302 drives the second rotating shaft 401 to rotate through the magnetic disc 304, the sealing plug 307 and the first limiting groove 308, thereby driving the scraping plate 405 to rotate through the movable connecting rod 404, and repeatedly scraping the inner wall of the filter cartridge 6; S4. The decolorized enzymatic hydrolyzate flows out from the liquid outlet pipe 106 through the filter cartridge 6, and the filtered solid impurities are separated from the discharge portion, completing the decolorization.

[0040] The above is only a preferred specific implementation of the present invention; however, 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 solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A decolorization device for extracting oyster peptides, comprising: The decolorizing barrel (1) is characterized by further comprising: A top cover (101) is arranged on the top of the decolorizing barrel (1); A conical bottom plate (102) arranged at the bottom end of the decolorizing barrel (1); A feeding part, arranged on the decolorizing barrel (1); A stirring unit, arranged in the decolorizing barrel (1) to stir the extract; A filtering part, arranged inside the decolorizing barrel (1) and located at the bottom end of the stirring part; A supporting circular plate (301) is arranged between the stirring portion and the filtering portion to isolate the space between the stirring portion and the filtering portion; A sealing connection portion, arranged on the supporting circular plate (301), to ensure the connection or closure between the stirring portion and the filtering portion; A scraping part is arranged in the filtering part to ensure the filtering effect of the filtering part; A cleaning part connected to the sealing connection part to clean the filter part; A discharge portion, arranged on the conical bottom plate (102) to separate solid impurities; The sealing connection portion comprises: A rubber ring (306) is sleeved on the central through hole of the supporting circular plate (301); A sealing plug (307) is disposed on the rubber ring (306); Two electromagnets (305) are provided, and the two electromagnets (305) are symmetrically arranged on the supporting circular plate (301); A first limiting groove (308) is formed on the sealing plug (307) to cooperate with and connect to the scraping portion.

2. A decolorization device for extracting oyster peptides according to claim 1, characterized in that: The stirring part comprises: A first motor (201) is arranged at the center of the top cover (101); A first rotating shaft (202), one end of which is connected to an output end of the first motor (201); A plurality of stirring rods (203) are provided, wherein the plurality of stirring rods (203) are arranged in an array on the first rotating shaft (202); The first square groove (204) is formed on an end of the first rotating shaft (202) away from the first motor (201).

3. A decolorization device for extracting oyster peptides according to claim 2, characterized in that: The filter unit comprises: A second limiting groove (601) is formed on the conical bottom plate (102); A filter cartridge (6), one end of which is placed in the second limiting groove (601); A limiting ring (602) is arranged at the bottom end of the supporting circular plate (301) and is connected to the top end of the filter cartridge (6) in a limiting manner.

4. A decolorization device for extracting oyster peptides according to claim 3, characterized in that: The scraping part comprises: A second limiting block (403) slides in the first limiting groove (308); A second limiting square rod (402), one end of which is connected to the second limiting square block (403) and is limitedly slidably connected to the first limiting groove (308); A support block, arranged on the conical bottom plate (102); A second rotating shaft (401), one end of which is connected to the other end of the second limiting square rod (402), and the other end of which is placed on the supporting block; A plurality of movable connecting shafts are provided, wherein the plurality of movable connecting shafts are connected to the second rotating shaft (401) via movable parts; The scraper plate (405) is hinged to the other end of the movable connecting shaft.

5. A decolorization device for extracting oyster peptides according to claim 4, characterized in that: The movable parts include: A first rotating groove (406) is formed on the second rotating shaft (401) and is hinged to one end of the second rotating shaft (401); A stopper (407) is arranged on the movable connecting shaft; A limit spring (408) has one end connected to the interior of the first rotation groove (406) and the other end connected to the stopper (407).

6. A decolorization device for extracting oyster peptides according to claim 5, characterized in that: The cleaning unit comprises: A water inlet pipe (107) is arranged on the outer surface of the decolorizing barrel (1); A water channel (309) is provided on the supporting circular plate (301) and is cooperatively connected to the water inlet pipe (107); A connecting water pipe (310) is arranged at the bottom end of the supporting circular plate (301) and is cooperatively connected to the water channel (309); A plurality of groups of high-pressure nozzles (311) are provided, and the plurality of groups of high-pressure nozzles (311) are sequentially arranged on the connecting water pipe (310), and the high-pressure nozzles (311) are directed toward the filter cartridge (6).

7. A decolorization device for extracting oyster peptides according to claim 6, characterized in that: The discharging part comprises: A discharge pipe (501) connected to the bottom end of the conical bottom plate (102); A first spherical valve (502) is arranged inside the discharge pipe (501); A second motor (503) is disposed on the discharge pipe (501), and an output end thereof is connected to the first spherical valve (502) to control the opening or closing of the first spherical valve (502); A second spherical valve (504) is disposed in the discharge pipe (501) and is located at the bottom end of the first spherical valve (502); The third motor (505) is arranged on the discharge pipe (501), and the output end is connected to the second spherical valve (504) to control the opening or closing of the second spherical valve (504).

8. A decolorization device for extracting oyster peptides according to claim 7, characterized in that: The feeding part comprises: A feeding pipe (105) is arranged on the top cover (101) and is used for placing a decolorizing agent; A liquid inlet pipe (104) is arranged on the top cover (101) at one end away from the feed pipe (105) for placing the enzymatic hydrolysis solution.

9. A decolorization device for extracting oyster peptides according to claim 8, characterized in that: The sealed connection portion further comprises: A magnetic disc (304) is disposed on the sealing plug (307) and is cooperatively connected with the electromagnet (305); A connecting square rod (302) is disposed on the magnetic disc (304) and is cooperatively connected to the first rotating shaft (202); A connecting square cone (303) is arranged on the other end of the connecting square rod (302) to cooperate with and connect to the first square groove (204).

10. A decolorization method applicable to the decolorization device for extracting oyster peptides according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Prepare an enzymatic hydrolysate containing oyster peptides, and put the enzymatic hydrolysate into the stirring part of the decolorizing barrel (1) from the liquid inlet pipe (104), and at the same time put the prepared decolorizing agent into the stirring part of the decolorizing barrel (1) from the feed pipe (105); S2, starting the first motor (201), driving the first rotating shaft (202) to rotate, and then driving the stirring rod (203) to rotate, so that the enzymatic solution and the decolorizing agent are fully mixed; S3, the fully mixed liquid flows into the filter part, the electromagnet (305) is started, and the magnetic disc (304) is driven to move upward, thereby driving the connecting square rod (302) and the connecting square cone (303) to move upward into the first square groove (204), so that the connecting square rod (302) and the connecting square cone (303) rotate along with the first rotating shaft (202), and the connecting square rod (302) drives the second rotating shaft (401) to rotate through the magnetic disc (304), the sealing plug (307) and the first limiting groove (308), thereby driving the scraping plate (405) to rotate through the movable connecting rod (404), and repeatedly scraping the inner wall of the filter cartridge (6); S4. The decolorized enzymatic hydrolyzate flows out from the liquid outlet pipe (106) through the filter cartridge (6), and the filtered solid impurities are separated from the discharge portion, thereby completing the decolorization.

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