A latex protein removal device and method

Abstract

The application discloses a latex protein eliminating device and method, and relates to the technical field of latex product processing equipment. The device comprises a rack, a cover fixed on the rack, a centrifugal module for eliminating most protein degradation fragments in latex enzyme solution, and a conical rotating drum fixed at one end of the centrifugal module. The device further comprises a plurality of slag discharge sleeves uniformly distributed on the outer side of the conical rotating drum. A spiral unloader in the centrifugal module discharges the protein degradation fragments generated after separation from the slag discharge sleeves. Each slag discharge sleeve is provided with a blockage removal and discharging assembly. The centrifugal module and the blockage removal and discharging assembly cooperate with each other. When the centrifugal module works, the conical rotating drum rotates at a high speed. The spiral unloader pushes the separated protein degradation fragments to the slag discharge sleeves. The blockage removal and discharging assembly performs real-time rotary cutting and pushing on the blockages possibly formed in the slag discharge sleeves, ensures the smoothness of the slag discharge channel, and improves the separation efficiency of the centrifugal module.

Description

Technical Field

[0001] This invention relates to the field of latex product processing equipment technology, specifically to a latex protein elimination device and method. Background Technology

[0002] Natural latex is widely used in medical devices, household goods, and other fields due to its excellent elasticity, breathability, and biocompatibility. However, various proteins contained in natural latex, such as α-lactalbumin and β-lactoglobulin, are major allergens that trigger allergic reactions in humans, severely limiting its application in certain sensitive populations.

[0003] Traditional methods for removing latex proteins, such as washing and enzymatic hydrolysis, suffer from low efficiency, incomplete protein removal, significant damage to latex properties, or complex processes. Washing requires large amounts of water and struggles to completely remove poorly water-soluble proteins. Enzymatic hydrolysis often targets only specific proteins, offering limited effectiveness in complex latex protein systems. Furthermore, protein degradation fragments generated after enzymatic hydrolysis may remain in the latex system, affecting product quality and safety. In addition, during subsequent processing of the hydrolysate, especially the centrifugation of protein degradation fragments, these fragments easily accumulate and clog the discharge port, impacting separation efficiency and continuous equipment operation. Some fragments may also adhere to the inner walls of the equipment, making cleaning difficult, reducing protein removal efficiency, and potentially causing cross-contamination. Summary of the Invention

[0004] The purpose of this invention is to provide a latex protein elimination device and method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a latex protein elimination device, comprising: A frame, on which a cover is fixed, and inside the cover is a centrifugation module that eliminates most of the protein degradation debris in the latex hydrolysate, and a conical drum is fixed to one end of the centrifugation module; Also includes: Multiple discharge sleeves are evenly distributed on the outside of the conical drum. A screw feeder within the centrifugal module discharges protein degradation fragments generated after separation from these discharge sleeves. Each discharge sleeve is equipped with a clearing and discharging component, which is used to clear blockages inside the discharge sleeve in real time during the discharge of protein degradation fragments. A rotating shell is fixed to the end of the conical drum; and... A revolution drive assembly is disposed within the rotating shell and is driveably connected to the unblocking and discharging assembly. An anti-accumulation assembly is also provided on one side of the slag discharge sleeve. The anti-accumulation assembly is used to promptly blow away protein degradation fragments cleaned by the unblocking and discharging assembly from the slag discharge sleeve area. Multiple sets of scraping components are fixed to the outside of the rotating shell. The scraping components are used to scrape and clean the residual protein degradation fragments attached to the inner wall of the shell in the slag discharge area.

[0006] Preferably, the unblocking and discharge assembly includes an unblocking spiral blade that contacts the inner wall of the slag discharge sleeve. The surface of the unblocking spiral blade is provided with a discharge groove. One end of the unblocking spiral blade is fixed with a connecting shaft. The connecting shaft passes through the rotating shell and extends into the interior of the rotating shell and is rotatably connected to the rotating shell through a bearing. The output end of the revolution drive assembly is drively connected to the connecting shaft.

[0007] Preferably, the revolution drive assembly includes a fixed gear ring disposed inside the rotating housing, the fixed gear ring having teeth on its inner side, the fixed gear ring being connected to a revolution gear through tooth meshing, a rotating shaft being fixed inside the central hole of the revolution gear, a driving bevel gear being fixed to one end of the rotating shaft, the driving bevel gear being meshed with a driven bevel gear, a limiting seat being rotatably connected to the middle of the rotating shaft through a bearing, the limiting seat being fixed to the inner wall of the rotating housing, the driven bevel gear being fixedly sleeved with the connecting shaft, and the anti-accumulation assembly being drively connected to the rotating shaft.

[0008] Preferably, the anti-accumulation component includes a drive pulley fixedly sleeved with the first rotating shaft, the drive pulley being synchronously driven to connect a driven pulley, a second rotating shaft being fixedly sleeved in the central hole of the driven pulley, the second rotating shaft being rotatably connected to the rotating shell through a bearing, and a fan being fixedly attached to one end of the second rotating shaft extending outside the rotating shell, the fan being located obliquely above the slag discharge sleeve.

[0009] Preferably, the scraping assembly includes a polymer elastic scraper that fits against the inner wall of the housing, a connecting block is fixed to one side of the polymer elastic scraper, and an abutment is provided at the bottom of the connecting block.

[0010] Preferably, the abutment includes a guide rod fixedly connected to the bottom of the connecting block, an end block fixedly attached to the bottom end of the guide rod, an L-shaped plate slidably sleeved on the outer side of the guide rod, the L-shaped plate being fixedly connected to the rotating shell, and a compression spring provided between the L-shaped plate and the end block.

[0011] Preferably, a fixing shell is fixed to the outer side of the fixing gear ring, one end of the fixing shell passes through the rotating shell and is fixedly connected to the inner wall of the cover.

[0012] Preferably, an annular baffle is fixed at one edge of the rotating shell, and a slewing bearing is rotatably connected to the end of the annular baffle away from the rotating shell, and the outer ring of the slewing bearing is fixed to the inner wall of the shell.

[0013] Preferably, the scraping edge of the polymer elastic scraper has an arc-shaped structure, and its surface is coated with a polytetrafluoroethylene anti-stick coating.

[0014] A method for eliminating latex proteins includes the following steps: S1: Take natural latex raw material, add deionized water to dilute to 22%-25% dry content, adjust the pH value to 7.2-7.8, then add composite stabilizer, and stir at 30℃ for 30 minutes; S2: Add a compound enzyme preparation to the pretreated latex. The amount of enzyme added is 0.8%-1.2% of the latex mass. Then, purge with nitrogen and start the ultrasonic generator. React at 35-40℃ for 40-60 minutes. The ultrasonic action destroys the spatial structure of the sensitizing protein. The compound enzyme system specifically hydrolyzes the peptide bonds of sensitizing proteins such as α-globulin to generate small molecule peptides with a molecular weight of <1kDa. S3: The enzymatic hydrolysate obtained from the above treatment is sent to the centrifugation module and centrifuged at 800-1000 r / min for 20 min to remove most of the protein degradation fragments. The supernatant obtained is then passed through the ultrafiltration membrane module and filtered at a pressure of 0.3-0.5 MPa to retain latex particles and separate small molecule peptides and residual enzyme solution. S4: Add 0.1%-0.2% epichlorohydrin to the retained latex, react at 45°C for 20 minutes to inactivate residual enzyme activity, and finally concentrate under vacuum to a dry content of 60%-65% to obtain low protein latex.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a centrifugal module and a blockage-clearing and discharge assembly in conjunction. When the centrifugal module is working, the conical drum rotates at high speed, and the screw unloader pushes the separated protein degradation fragments to the slag discharge sleeve. The blockage-clearing and discharge assembly then performs real-time cutting and pushing of any blockages that may form in the slag discharge sleeve, ensuring that the slag discharge channel is unobstructed, thereby improving the separation efficiency of the centrifugal module.

[0016] The anti-accumulation component of this invention is linked with the revolution drive component, which can generate directional airflow above the slag discharge sleeve. This can promptly blow the protein degradation fragments discharged from the slag discharge sleeve away from the discharge area, preventing the fragments from accumulating and agglomerating at the outlet of the slag discharge sleeve. This prevents secondary blockage caused by accumulation or additional resistance to discharge, and ensures a smooth discharge process.

[0017] This invention utilizes a scraping component driven by a rotating shell to thoroughly remove residual protein degradation fragments adhering to the inner wall of the casing within the slag discharge area. This prevents the accumulation and deterioration of these residual fragments, avoiding cross-contamination of subsequent batches and ensuring the cleanliness of the equipment's interior. This contributes to maintaining stable separation performance and extending the equipment's service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the centrifuge module of the present invention; Figure 3 This is a schematic diagram of the conical drum and rotating shell of the present invention; Figure 4 This is a schematic diagram of the structure of the unblocking and discharging assembly of the present invention; Figure 5 This is a side sectional view of the rotating shell of the present invention; Figure 6 This is a schematic diagram of the orbital drive component and anti-stacking component of the present invention; Figure 7 This is a schematic diagram of the scraping component of the present invention; Figure 8 for Figure 7 Enlarged schematic diagram of the structure of region A in the middle.

[0019] In the diagram: 1. Frame; 2. Housing; 3. Centrifugal module; 4. Conical drum; 5. Slag discharge sleeve; 6. Unblocking and discharge assembly; 7. Rotating shell; 8. Revolution drive assembly; 9. Anti-accumulation assembly; 10. Scraping assembly; 11. Unblocking spiral blade; 12. Discharge chute; 13. Connecting shaft; 14. Fixed gear ring; 15. Revolution gear; 16. Rotating shaft one; 17. Driving bevel gear; 18. Driven bevel gear; 19. Limit seat; 20. Driving pulley; 21. Driven pulley; 22. Rotating shaft two; 23. Fan; 24. Polymer elastic scraper; 25. Connecting block; 26. Abutment part; 27. Guide rod; 28. End block; 29. ​​L-shaped plate; 30. Compression spring; 31. Fixed shell; 32. Annular baffle; 33. Slewing bearing. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1 - Figure 8The diagram illustrates a latex protein elimination device, comprising: a frame 1, a housing 2 fixed on the frame 1, a centrifugal module 3 inside the housing 2 for eliminating most protein degradation fragments in the latex hydrolysate, and a conical drum 4 fixed to one end of the centrifugal module 3; further comprising: multiple discharge sleeves 5 evenly distributed outside the conical drum 4, a spiral unloader inside the centrifugal module 3 discharging the separated protein degradation fragments from the discharge sleeves 5, and a clearing and discharging component 6 within each discharge sleeve 5 for clearing blockages and discharging material during the protein degradation fragment discharge process. The slag discharge sleeve 5 is cleaned in real time. The end of the conical drum 4 is fixed with a rotating shell 7. A revolution drive component 8 is installed inside the rotating shell 7 and is connected to the slag discharge component 6. An anti-accumulation component 9 is also provided on one side of the slag discharge sleeve 5. The anti-accumulation component 9 is used to blow away the protein degradation fragments cleaned by the slag discharge component 6 from the area of ​​the slag discharge sleeve 5 in a timely manner. Multiple scraping components 10 are fixed on the outside of the rotating shell 7. The scraping components 10 are used to scrape and clean the residual protein degradation fragments attached to the inner wall of the cover 2 in the discharge area of ​​the slag discharge sleeve 5.

[0022] In this solution, the cooperation between the centrifugal module 3 and the unblocking and discharge component 6 effectively solves the problem of easy clogging of the discharge sleeve 5 in the traditional centrifugal separation process. When the conical drum 4 rotates at high speed under the drive of the centrifugal module 3, the protein degradation fragments in the latex hydrolysate are thrown towards the inner wall of the conical drum 4 under the action of centrifugal force, and pushed to the discharge sleeve 5 by the screw unloader. The unblocking and discharge component 6 then performs real-time rotary cutting and pushing of any blockages that may form in the discharge sleeve 5, ensuring that the discharge channel is unobstructed. This improves the separation efficiency of the centrifugal module 3 and can also perform real-time rotary cutting and crushing of any possible flocculent blockages, ensuring that the discharge channel is always unobstructed and avoiding downtime for cleaning due to blockage. The revolution drive component 8 provides power to the unblocking and discharge component 6 and also drives the anti-accumulation component 9 to work, generating a directional airflow above the discharge sleeve 5. When the white degradation fragments are discharged from the slag discharge sleeve 5, the airflow can promptly blow them away from the outlet area of ​​the slag discharge sleeve 5, preventing the fragments from accumulating, clumping, or even falling back into the equipment at the outlet. This avoids the additional resistance caused by the accumulated material to the discharge and reduces the risk of equipment contamination caused by the deterioration of the accumulated material, further ensuring the smoothness of the discharge process. Driven by the rotating shell 7, the scraping component 10 can completely scrape off the residual protein degradation fragments attached to the inner wall of the cover 2 in the discharge area of ​​the slag discharge sleeve 5, preventing the accumulation and deterioration of these residual fragments. This not only avoids cross-contamination of subsequent batches but also ensures the cleanliness of the equipment, which is conducive to maintaining a stable separation effect and extending the service life of the equipment.

[0023] For further details, please refer to [link / reference]. Figures 3-5The unblocking and discharge assembly 6 includes an unblocking spiral blade 11 that contacts the inner wall of the slag discharge sleeve 5. The surface of the unblocking spiral blade 11 is provided with a discharge groove 12. One end of the unblocking spiral blade 11 is fixed with a connecting shaft 13. The connecting shaft 13 passes through the rotating shell 7 and extends into the interior of the rotating shell 7 and is rotatably connected to the rotating shell 7 through a bearing. The output end of the revolution drive assembly 8 is connected to the connecting shaft 13 for transmission.

[0024] It should be noted that, through the close contact between the unblocking spiral blade 11 and the inner wall of the slag discharge sleeve 5, when the connecting shaft 13 rotates under the drive of the revolution drive component 8, the unblocking spiral blade 11 rotates synchronously within the slag discharge sleeve 5. The discharge trough 12 on its surface not only guides and pushes the protein degradation fragments, continuously discharging them along the axial direction of the slag discharge sleeve 5, but also, the rotation of the unblocking spiral blade 11 mechanically cuts and stirs any localized blockages or agglomerations of fragments that may occur within the slag discharge sleeve 5, breaking larger fragment clumps into smaller particles and preventing them from forming blockages in the narrow channel of the slag discharge sleeve 5. This allows the unblocking and discharge processes to proceed simultaneously, eliminating the need for additional unblocking operation time and effectively improving slag discharge efficiency and the continuity of equipment operation. For example, when the protein degradation fragments separated by centrifugation contain a lot of sticky substances that easily adhere to and gradually accumulate on the inner wall of the slag discharge sleeve 5, the continuous rotation of the unblocking spiral blade 11 can promptly scrape off these adhering substances and discharge them through the discharge trough 12, ensuring that the interior of the slag discharge sleeve 5 remains unobstructed at all times.

[0025] For further details, please refer to [link / reference]. Figure 5 and Figure 6 The revolution drive assembly 8 includes a fixed gear ring 14 disposed inside the rotating housing 7. The fixed gear ring 14 has teeth on its inner side. The fixed gear ring 14 is connected to a revolution gear 15 through the meshing of the teeth. A rotating shaft 16 is fixed in the middle hole of the revolution gear 15. A driving bevel gear 17 is fixed at one end of the rotating shaft 16. The driving bevel gear 17 is meshed with a driven bevel gear 18. The middle part of the rotating shaft 16 is rotatably connected to a limiting seat 19 through a bearing. The limiting seat 19 is fixed to the inner wall of the rotating housing 7. The driven bevel gear 18 is fixedly sleeved with the connecting shaft 13. The anti-accumulation assembly 9 is connected to the rotating shaft 16 through a transmission.

[0026] In this design, when the conical drum 4 in the centrifugal module 3 rotates, the rotating shell 7 rotates together with the conical drum 4. The limiting seat 19 drives the rotating shaft 16 and the revolving gear 15 to revolve around the central axis of the fixed gear ring 14. Since the fixed gear ring 14 is fixed to the cover 2 and its position remains stationary, the revolving gear 15 will mesh with the inner teeth of the fixed gear ring 14 during its revolution, thereby generating a rotational motion. The rotation of the revolving gear 15 drives the rotating shaft 16 to rotate synchronously, which in turn causes the active bevel gear 17 at the end of the rotating shaft 16 to rotate. The active bevel gear 17 meshes with the passive bevel gear 18, transmitting power to the connecting shaft 13, and finally driving the unblocking spiral blade 11 to rotate within the slag discharge sleeve 5 to achieve the real-time unblocking and material discharge function. The unblocking and material discharge component 6 utilizes the rotation of the rotating shell 7 itself as a power source, eliminating the need for an additional independent drive device, simplifying the equipment structure, reducing energy consumption, and ensuring the coordination and synchronization of the unblocking and material discharge component 6 and the centrifugal module 3. For example, when the rotational speed of the conical drum 4 changes, the rotational speed of the rotating shell 7 also changes accordingly. Through the gear meshing relationship, the rotational speed of the unblocking spiral blade 11 will also be adjusted accordingly to ensure that the unblocking capacity matches the slag discharge volume.

[0027] It should be noted that, for reference Figure 6 A fixed shell 31 is fixed to the outer side of the fixed gear ring 14. One end of the fixed shell 31 passes through the rotating shell 7 and is fixedly connected to the inner wall of the cover 2. The fixed shell 31 can provide stable support for the fixed gear ring 14, ensuring that it remains in a fixed position during the high-speed rotation of the rotating shell 7, and avoiding displacement due to vibration or centrifugal force. This ensures the meshing accuracy and transmission stability between the revolving gear 15 and the fixed gear ring 14, thereby ensuring the normal operation of the unblocking and discharging assembly 6.

[0028] For further details, please refer to [link / reference]. Figure 5 An annular baffle 32 is fixed at one edge of the rotating shell 7. The end of the annular baffle 32 away from the rotating shell 7 is rotatably connected to a slewing bearing 33. The outer ring of the slewing bearing is fixed to the inner wall of the cover 2.

[0029] It should be noted that the cooperation between the annular baffle 32 and the slewing bearing 33 provides stable support and guidance for the high-speed rotation of the rotating shell 7, enabling the rotating shell 7 to rotate smoothly around a fixed axis as it rotates with the conical drum 4, effectively reducing radial runout and axial movement during the rotation of the rotating shell 7. At the same time, the high-precision rolling element design of the slewing bearing 33 ensures the flexibility and smoothness of the rotation of the rotating shell 7.

[0030] A method for eliminating latex proteins includes the following steps: S1: Take natural latex raw material, add deionized water to dilute to dry content 22%-25%, adjust pH value to 7.2-7.8, then add compound stabilizer (potassium alginate 3-5 parts + sodium lauryl 2-3 parts, according to latex weight), stir at 30℃ for 30 minutes; S2: Add a compound enzyme preparation to the pretreated latex. The amount of enzyme added is 0.8%-1.2% of the latex mass. Then, purge with nitrogen and start the ultrasonic generator. React at 35-40℃ for 40-60 minutes. The ultrasonic action destroys the spatial structure of the sensitizing protein. The compound enzyme system specifically hydrolyzes the peptide bonds of sensitizing proteins such as α-globulin to generate small molecule peptides with a molecular weight of <1kDa. S3: The enzymatic hydrolysate obtained from the above treatment is sent to centrifugation module 3 and centrifuged at 800-1000 r / min for 20 min to remove most of the protein degradation fragments. The supernatant obtained is then passed through an ultrafiltration membrane module and filtered at a pressure of 0.3-0.5 MPa to retain latex particles and separate small molecule peptides and residual enzyme solution. S4: Add 0.1%-0.2% epichlorohydrin to the retained latex, react at 45°C for 20 minutes to inactivate residual enzyme activity, and finally concentrate under vacuum to a dry content of 60%-65% to obtain low protein latex.

[0031] Example 2: Refer to Figure 6 As shown, this embodiment further illustrates Example 1, with the difference being that the airflow guiding structure of the anti-accumulation component 9 is optimized, making its blowing effect on protein degradation fragments more precise.

[0032] Specifically, the anti-accumulation component 9 includes a drive pulley 20 fixedly sleeved with the rotating shaft 16. The drive pulley 20 is synchronously driven and connected to a driven pulley 21. A rotating shaft 22 is fixedly sleeved in the central hole of the driven pulley 21. The rotating shaft 22 is rotatably connected to the rotating shell 7 through a bearing. A fan 23 is fixed at one end of the rotating shaft 22 that extends outside the rotating shell 7. The fan 23 is located obliquely above the slag discharge sleeve 5.

[0033] It should be noted that, through the setting of the anti-accumulation component 9, the rotating shaft 16 in the revolution drive component 8 is used as the power input. When the rotating shaft 16 rotates under the drive of the revolution gear 15, the driving pulley 20 rotates synchronously and transmits power to the driven pulley 21 through the synchronous belt, thereby driving the rotating shaft 22 and the fan 23 to rotate. The fan 23 is located diagonally above the slag discharge sleeve 5. When it rotates, it can generate a directional airflow. The direction of this airflow is directly towards the outlet area of ​​the slag discharge sleeve 5. When the protein degradation fragments are pushed out of the slag discharge sleeve 5 by the unblocking spiral blade 11, the airflow generated by the fan 23 can promptly blow these newly discharged fragments away from the outlet of the slag discharge sleeve 5, preventing the fragments from accumulating and agglomerating at the outlet due to gravity or airflow disturbance. For example, for some protein degradation fragments with low density or certain viscosity, if they are not blown away in time, they are very likely to form an accumulation layer near the outlet of the slag discharge sleeve 5. This will not only obstruct the subsequent discharge of fragments and increase the discharge resistance, but may even cause some fragments to fall back into the equipment, affecting the separation effect.

[0034] Example 3: Refer to Figure 7 and Figure 8 As shown, this embodiment further explains the first embodiment, the difference being that the elastic adaptive structure of the scraping component 10 is optimized, making it fit better with the inner wall of the cover 2 and the scraping effect more thorough.

[0035] Specifically, the scraping assembly 10 includes a polymer elastic scraper 24 that fits against the inner wall of the housing 2. A connecting block 25 is fixed to one side of the polymer elastic scraper 24, and an abutment 26 is provided at the bottom of the connecting block 25. The abutment 26 includes a guide rod 27 that is fixedly connected to the bottom of the connecting block 25. An end block 28 is fixed to the bottom end of the guide rod 27. An L-shaped plate 29 is slidably sleeved on the outside of the guide rod 27. The L-shaped plate 29 is fixedly connected to the rotating housing 7, and a compression spring 30 is provided between the L-shaped plate 29 and the end block 28.

[0036] It should be noted that, through the arrangement of the scraping component 10, when the rotating shell 7 rotates with the conical drum 4, the L-shaped plate 29 drives the guide rod 27 and the polymer elastic scraper 24 to move in a circular motion around the inner wall of the cover 2 in sync. The polymer elastic scraper 24 is made of a polymer material with high elasticity and wear resistance, and its edges can fit tightly against the inner wall of the cover 2. Under the elastic force of the compression spring 30, the end block 28 is subjected to an upward thrust, which is transmitted to the connecting block 25 through the guide rod 27, so that the polymer elastic scraper 24 always presses against the inner wall of the cover 2 with appropriate pressure, ensuring that the residual protein degradation fragments attached to the discharge area of ​​the slag sleeve 5 can be completely scraped off during the rotation. For example, when protein degradation fragments are attached to the inner wall of the cover 2 due to static electricity or stickiness, these residual fragments will be peeled off from the inner wall with the continuous scraping of the scraper, preventing them from gradually accumulating and forming a thick layer of dirt. The compression spring 30 also serves as a buffer. When the scraper encounters unevenness or small protrusions on the inner wall, the compression spring 30 will compress and deform, allowing the scraper to adjust its position adaptively, thus avoiding rigid collision between the scraper and the inner wall and preventing damage, while ensuring that the scraping effect is not affected.

[0037] It should also be noted that the scraping edge of the polymer elastic scraper 24 has an arc-shaped structure, and its surface is coated with a polytetrafluoroethylene (PTFE) anti-stick coating. The arc-shaped structure of the scraping edge can better fit the curvature of the inner wall of the cover 2, ensuring a larger and more uniform contact area with the inner wall, thereby improving the thoroughness of scraping and avoiding scraping dead corners. The PTFE anti-stick coating can effectively reduce the probability of protein degradation debris adhering to the scraper surface, reduce the cleaning frequency of the scraper itself, and ensure the continuity and efficiency of the scraping process. Even for highly adhesive residual debris, it can easily scrape it off the inner wall and prevent it from sticking to the scraper.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A latex protein removal device, comprising: A frame (1) is provided with a cover (2) fixed on the frame (1). The cover (2) is provided with a centrifugation module (3) for eliminating most of the protein degradation fragments in the latex hydrolysate. A conical drum (4) is fixed at one end of the centrifugation module (3). Its characteristic is that it further includes: Multiple slag discharge sleeves (5) are evenly distributed on the outside of the conical drum (4). The spiral unloader in the centrifugal module (3) discharges the protein degradation fragments generated after separation from the slag discharge sleeves (5). Each slag discharge sleeve (5) is equipped with a blockage clearing and discharge assembly (6). The blockage clearing and discharge assembly (6) is used to clear the blockage inside the slag discharge sleeve (5) in real time during the discharge of protein degradation fragments. A rotating shell (7) is fixed to the end of the conical drum (4); and, A revolution drive assembly (8) is installed inside the rotating shell (7) and is connected to the unblocking and discharging assembly (6) for transmission. An anti-accumulation assembly (9) is also provided on one side of the slag discharge sleeve (5). The anti-accumulation assembly (9) is used to promptly blow away the protein degradation fragments cleaned out by the unblocking and discharging assembly (6) from the area of ​​the slag discharge sleeve (5). Multiple scraping components (10) are fixed on the outside of the rotating shell (7). The scraping components (10) are used to scrape and clean the residual protein degradation fragments attached to the inner wall of the cover (2) in the discharge area of ​​the slag sleeve (5).

2. The latex protein elimination device according to claim 1, characterized in that: The unblocking and discharge assembly (6) includes an unblocking spiral blade (11) that contacts the inner wall of the slag discharge sleeve (5). The surface of the unblocking spiral blade (11) is provided with a discharge groove (12). One end of the unblocking spiral blade (11) is fixed with a connecting shaft (13). The connecting shaft (13) passes through the rotating shell (7) and extends into the interior of the rotating shell (7) and is rotatably connected to the rotating shell (7) through a bearing. The output end of the revolution drive assembly (8) is connected to the connecting shaft (13) for transmission.

3. The latex protein elimination device according to claim 2, characterized in that: The revolution drive assembly (8) includes a fixed gear ring (14) disposed inside the rotating shell (7). The fixed gear ring (14) has teeth on its inner side. The fixed gear ring (14) is connected to a revolution gear (15) through tooth meshing. A rotating shaft (16) is fixed in the middle hole of the revolution gear (15). A driving bevel gear (17) is fixed at one end of the rotating shaft (16). The driving bevel gear (17) is meshed with a driven bevel gear (18). A limiting seat (19) is rotatably connected to the middle part of the rotating shaft (16) through a bearing. The limiting seat (19) is fixed to the inner wall of the rotating shell (7). The driven bevel gear (18) is fixedly sleeved with the connecting shaft (13). The anti-accumulation assembly (9) is connected to the rotating shaft (16) through transmission.

4. The latex protein elimination device according to claim 3, characterized in that: The anti-accumulation component (9) includes an active pulley (20) fixedly sleeved with the first rotating shaft (16). The active pulley (20) is connected to a driven pulley (21) through synchronous drive transmission. A second rotating shaft (22) is fixedly sleeved in the middle hole of the driven pulley (21). The second rotating shaft (22) is rotatably connected to the rotating shell (7) through a bearing. A fan (23) is fixed at one end of the second rotating shaft (22) that extends outside the rotating shell (7). The fan (23) is located obliquely above the slag discharge sleeve (5).

5. The latex protein elimination device according to claim 1, characterized in that: The scraping assembly (10) includes a polymer elastic scraper (24) that fits against the inner wall of the cover (2). A connecting block (25) is fixed on one side of the polymer elastic scraper (24), and an abutment (26) is provided at the bottom of the connecting block (25).

6. The latex protein elimination device according to claim 5, characterized in that: The abutment (26) includes a guide rod (27) fixedly connected to the bottom of the connecting block (25). An end block (28) is fixed to the bottom end of the guide rod (27). An L-shaped plate (29) is slidably sleeved on the outside of the guide rod (27). The L-shaped plate (29) is fixedly connected to the rotating shell (7). A compression spring (30) is provided between the L-shaped plate (29) and the end block (28).

7. The latex protein elimination device according to claim 3, characterized in that: A fixing shell (31) is fixed to the outside of the fixing gear ring (14). One end of the fixing shell (31) passes through the rotating shell (7) and is fixedly connected to the inner wall of the cover (2).

8. The latex protein elimination device according to claim 7, characterized in that: An annular baffle (32) is fixed at one edge of the rotating shell (7). The end of the annular baffle (32) away from the rotating shell (7) is rotatably connected to a slewing bearing (33). The outer ring of the slewing bearing is fixed to the inner wall of the cover (2).

9. The latex protein elimination device according to claim 5, characterized in that: The scraping edge of the polymer elastic scraper (24) has an arc-shaped structure, and its surface is coated with a polytetrafluoroethylene anti-stick coating.

10. A method for eliminating latex proteins, characterized in that, Includes the following steps: S1: Take natural latex raw material, add deionized water to dilute to dry content 22%-25%, adjust pH value to 7.2-7.8, then add compound stabilizer (potassium alginate 3-5 parts + sodium lauryl 2-3 parts, according to latex weight), stir at 30℃ for 30 minutes; S2: Add a compound enzyme preparation to the pretreated latex. The amount of enzyme added is 0.8%-1.2% of the latex mass. Then, purge with nitrogen and start the ultrasonic generator. React at 35-40℃ for 40-60 minutes. The ultrasonic action destroys the spatial structure of the sensitizing protein. The compound enzyme system specifically hydrolyzes the peptide bonds of sensitizing proteins such as α-globulin to generate small molecule peptides with a molecular weight of <1kDa. S3: The enzymatic hydrolysate obtained from the above treatment is sent to the centrifugation module (3) and centrifuged at 800-1000 r / min for 20 min to remove most of the protein degradation fragments. The supernatant obtained is then passed through the ultrafiltration membrane module and filtered at a pressure of 0.3-0.5 MPa to retain latex particles and separate small molecule peptides and residual enzyme solution. S4: Add 0.1%-0.2% epichlorohydrin to the retained latex, react at 45°C for 20 minutes to inactivate residual enzyme activity, and finally concentrate under vacuum to a dry content of 60%-65% to obtain low protein latex.

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