Screening and separating device for superoxide dismutase

Abstract

The utility model relates to the technical field of superoxide dismutase production, in particular to a screening and separating device for superoxide dismutase. Comprising a screening box, a feeding mechanism is arranged on the screening box, the feeding mechanism is used for preliminarily filtering superoxide dismutase and enabling the superoxide dismutase to enter the screening box, and a screening mechanism is arranged in the screening box and used for screening the superoxide dismutase. According to the superoxide dismutase screening device, a worker puts superoxide dismutase into the feeding mechanism, at the moment, the screening mechanism works to drive the feeding mechanism to work, and the superoxide dismutase in the feeding mechanism evenly enters the screening box through preliminary filtering of the filtering plate and falls on the screening plate; and the screening mechanism works to enable the screening plate to rotate, so that the superoxide dismutase slides downwards along the screening plate and is screened, and the situation that the screening effect of the screening plate on the superoxide dismutase is reduced due to the fact that the superoxide dismutase is accumulated on the surface of the screening plate is avoided.

Description

Technical Field

[0001] This utility model relates to the field of superoxide dismutase production technology, and more specifically, to a screening and separation device for superoxide dismutase. Background Technology

[0002] Superoxide dismutase (SOD) is an antioxidant metalloenzyme found in living organisms. It catalyzes the dismutation of superoxide anion free radicals into oxygen and hydrogen peroxide, playing a crucial role in the body's oxidation-antioxidant balance and being closely related to the occurrence and development of many diseases. SOD can eliminate harmful substances produced during metabolism and has a special anti-aging effect on the human body. Currently, SOD production mainly involves extraction from plant tissues, and the processed SOD is mostly in powder form. This powder is prone to impurities. To improve the purity of the SOD powder, workers typically use a screening and separation device to sieve the powder, removing excess superoxide dismutase. Impurities in enzyme powder are sieved out to facilitate the subsequent use of superoxide dismutase (SOD) powder. However, existing screening and separation devices use sieves to sieve SOD powder. If the sieves do not sieve the SOD powder in time after it is poured into the screening and separation device, a large amount of SOD powder will accumulate on the sieves. Under the action of gravity, the SOD powder particles on the sieves rub and squeeze against each other, causing the SOD powder particles near the sieves to become entangled and unable to pass through the sieve holes, thus reducing the sieving effect of the sieves on the SOD powder. In view of this, we propose a screening and separation device for superoxide dismutase. Summary of the Invention

[0003] The purpose of this invention is to provide a screening and separation device for superoxide dismutase, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, one objective of this utility model is to provide a screening and separation device for superoxide dismutase (SOD), comprising a screening box, a collection box disposed at the bottom of the screening box, one side of the collection box extending to the outside of the screening box, the collection box for collecting the screened SOD, a feeding mechanism on the screening box for initially filtering the SOD and allowing it to enter the interior of the screening box, a screening mechanism inside the screening box for screening the SOD, the screening mechanism including a sieve plate hinged to an inclined arrangement inside the screening box, the lower end of the sieve plate being connected to the sieve... The screening box is hinged, and a connecting rod is fixedly installed at the higher end of the screen plate. A circular groove penetrating the screening box is opened on the side wall of the screening box. A turntable is coaxially rotatably connected inside the circular groove. An installation groove offset from the axis of the turntable is opened on the surface of the turntable near the screen plate. The installation groove is connected to the circular groove. A gear is rotatably connected inside the installation groove. A half-tooth ring is coaxially fixedly installed on the inner surface of the circular groove. The half-tooth ring meshes with the gear. An installation tube is fixedly installed on the surface of the gear near the screen plate. A connecting frame is slidably installed inside the installation tube. The end of the connecting frame away from the gear extends to the outside of the installation tube. The end of the connecting frame away from the gear is slidably connected to the connecting rod.

[0005] As a further improvement to this technical solution, a chute penetrating the screening box is provided on the upper surface of the screening box. The feeding mechanism includes an inclined bucket slidably connected inside the chute. The top and bottom of the inclined bucket are located on the outside and inside of the screening box, respectively. The inclined bucket is used to slow down the falling speed of superoxide dismutase. A vertical bucket connected to the inclined bucket is fixedly provided at the top of the inclined bucket. A filter plate is fixedly provided inside the vertical bucket. The filter plate performs preliminary screening and filtration of superoxide dismutase.

[0006] As a further improvement to this technical solution, a moving groove penetrating the screening box is provided on one side of the upper surface of the screening box. An installation shell is fixedly installed on the surface of the inclined bucket near the moving groove. The lower end of the installation shell extends through the moving groove into the interior of the screening box. A movable rod is slidably connected inside the installation shell. The lower end of the movable rod extends to the outside of the installation shell. The length of the movable rod inside the installation shell is greater than the diameter of the turntable. The lower end of the movable rod is rotatably connected to the installation pipe. Bellows covers are provided inside both the sliding groove and the moving groove. The two ends of the bellows covers are fixedly installed on the inclined bucket, the installation shell, and the screening box, respectively.

[0007] As a further improvement to this technical solution, the upper surface of the screening box is fixedly provided with guide rails on both sides of the chute, and the surface of the inclined bucket near the guide rail is fixedly provided with a slider corresponding to the position of the guide rail. The slider is slidably connected to the guide rail and moves along the axial direction of the guide rail.

[0008] As a further improvement to this technical solution, a mounting frame is fixedly installed on the outer surface of the screening box near the turntable, and a motor is fixedly installed on the top of the mounting frame. The output shaft of the motor is fixedly connected to the rotation center of the turntable near the motor via a coupling, and the rotating motor output shaft drives the turntable to rotate.

[0009] As a further improvement to this technical solution, an inclined baffle is rotatably connected inside the screening box via a torsion spring. The torsion spring drives the lower end of the baffle to approach the screen plate, and the bottom of the baffle is in close contact with the upper surface of the screen plate. The baffle is located below the inclined hopper. A discharge port that penetrates the screening box is opened on the surface of the screening box away from the turntable. The discharge port corresponds to the hinged position of the screen plate and the screening box. A side door is rotatably connected inside the discharge port.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This screening and separation device for superoxide dismutase (SOD) involves the operator placing SOD into the feeding mechanism. The screening mechanism then drives the feeding mechanism, allowing the SOD inside the feeding mechanism to pass through the initial filtration of the filter plate and enter the screening box evenly, landing on the sieve plate. The screening mechanism causes the sieve plate to rotate around the hinged position with the screening box, causing the end of the sieve plate away from the hinged position to reciprocate upwards and downwards. During this reciprocating motion, the sieve plate vibrates slightly and is tilted, allowing the SOD on the sieve plate to slide downwards and be screened. This prevents SOD from accumulating on the sieve plate surface, which would reduce the screening efficiency of the sieve plate. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0014] Figure 3 This is a cross-sectional three-dimensional structural diagram of the screening box in this utility model;

[0015] Figure 4 This is a three-dimensional structural diagram of the screening mechanism in this utility model;

[0016] Figure 5 This is a cross-sectional three-dimensional structural diagram of the screening mechanism in this utility model;

[0017] Figure 6 This is a cross-sectional three-dimensional structural diagram of the feeding mechanism in this utility model.

[0018] The meanings of the labels in the diagram are as follows:

[0019] 1. Screening box; 11. Collection box; 12. Discharge port; 121. Side door; 13. Baffle; 14. Slide chute; 15. Moving chute; 16. Bellows cover; 17. Circular trough; 18. Semi-toothed ring; 19. Guide rail;

[0020] 2. Screening mechanism; 21. Screen plate; 22. Connecting rod; 23. Turntable; 24. Gear; 25. Mounting pipe; 26. Connecting frame; 27. Mounting frame; 28. Motor;

[0021] 3. Feeding mechanism; 31. Inclined hopper; 32. Mounting shell; 33. Movable rod; 34. Sliding block; 35. Vertical hopper; 36. Filter plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0023] Please see Figures 1-6 As shown, one of the objectives of this embodiment is to provide a screening and separation device for superoxide dismutase (SOD), including a screening box 1. The screening box 1 has a screening mechanism 2 inside, which is used to screen SOD. The screening mechanism 2 includes a sieve plate 21 hinged inside the screening box 1. One end of the sieve plate 21 at its lower position is hinged to the screening box 1. A discharge port 12 penetrating the screening box 1 is opened on the surface of the screening box 1 away from the turntable 23. The discharge port 12 corresponds to the hinged position of the sieve plate 21 and the screening box 1. A side door 121 is rotatably connected inside the discharge port 12. A collection box 11 is provided at the bottom of the screening box 1, with one side extending to the outside of the screening box 1. The collection box 11 is used to collect the screened SOD. The superoxide dismutase (SOD) to be screened is poured into the screening box 1. The SOD is then screened by the sieve plate 21 inside the screening box 1. The screened SOD passes through the sieve holes on the sieve plate 21 and falls into the collection box 11 for storage, preventing the SOD from scattering and facilitating subsequent processing by the staff. When there are many impurities screened on the sieve plate 21, the staff opens the side door 121 corresponding to the position of the sieve plate 21, connecting the inside of the screening box 1 with the outside, making it easier for the staff to remove the impurities screened on the sieve plate 21 and preventing the accumulation of impurities on the sieve plate 21, which would reduce the screening effect of the sieve plate 21 on the SOD.

[0024] If the sieve plate 21 fails to screen the superoxide dismutase in time, the superoxide dismutase accumulates on the sieve plate 21. Under the action of gravity, the superoxide dismutase rubs and squeezes against each other, causing the superoxide dismutase near the sieve plate 21 to become entangled and unable to pass through the sieve holes, resulting in a decrease in the screening effect of the sieve plate 21 on the superoxide dismutase. To improve the screening effect of the sieve plate 21 on the superoxide dismutase, a connecting rod 22 is fixedly installed at the higher end of the sieve plate 21. A circular groove 17 penetrating the sieve box 1 is opened on the side wall of the sieve box 1. A turntable 23 is coaxially rotatably connected inside the circular groove 17. An installation groove offset from the axis of the turntable 23 is opened on the surface of the turntable 23 near the sieve plate 21. The installation groove is connected to the circular groove 17. A gear 24 is rotatably connected inside the installation groove. At this time, the axis of the gear 24 and the axis of the turntable 23 are not aligned. On the same straight line, a semi-toothed ring 18 is coaxially fixed on the inner surface of the circular groove 17. The semi-toothed ring 18 meshes with the gear 24. An installation tube 25 is fixedly installed on the surface of the gear 24 near the screen plate 21. The axis of the installation tube 25 and the axis of the gear 24 are not on the same straight line. That is, the installation tube 25 is eccentrically installed on the side wall of the gear 24. A connecting frame 26 is slidably installed inside the installation tube 25. The connecting frame 26 slides linearly along the axis of the installation tube 25. The end of the connecting frame 26 away from the gear 24 extends to the outside of the installation tube 25. The end of the connecting frame 26 away from the gear 24 is slidably connected to the connecting rod 22. An installation frame 27 is fixedly installed on the outer surface of the screening box 1 near the turntable 23. A motor 28 is fixedly installed on the top of the installation frame 27. The output shaft of the motor 28 is fixedly connected to the rotation center of the turntable 23 through a coupling.

[0025] The output shaft of the rotating motor 28 drives the turntable 23 to rotate. As the motor 28's shaft rotates, it drives the turntable 23 to rotate as well. Simultaneously, the rotating turntable 23 drives the gear 24 to rotate as well. During this rotation, the gear 24, aided by the force of the turntable 23's rotation, meshes with the semi-gear ring 18, causing it to rotate inside the turntable 23. The rotation of the turntable 23 and the gear 24 drives the mounting tube 25 to rotate. The mounting tube 25 is connected to the connecting rod 22 via the connecting frame 26. The rotating mounting tube 25 drives the connecting frame 26 to rotate. During the rotation of the connecting frame 26, it pulls on the connecting rod 22, causing it to move with the frame. When the connecting frame 26 moves downwards, it pulls the connecting rod 22 downwards as well. When the frame 26 moves upward, the connecting frame 26 drives the connecting rod 22 to move upward. Because the rotating connecting rod 22 makes a circular motion, the connecting rod 22 has a horizontal position during its movement. During the up-and-down movement of the connecting rod 22, the connecting frame 26 slides on the connecting rod 22. During the up-and-down movement of the connecting rod 22, the connecting rod 22 drives one end of the sieve plate 21 to swing up and down around the hinge position between the sieve plate 21 and the screening box 1. During the swinging of the sieve plate 21, the sieve plate 21 will pull the connecting rod 22 away from the turntable 23. At this time, the connecting rod 22 pulls the connecting frame 26, causing the connecting frame 26 to slide in the mounting tube 25. Through the up-and-down swinging of the sieve plate 21, the superoxide dismutase powder falling on the sieve plate 21 is shaken, thereby causing the superoxide dismutase to be screened by the sieve plate 21.

[0026] Simultaneously, during the rotation of the turntable 23, the meshing of gear 24 and the semi-toothed ring 18 causes gear 24 to rotate as well. During this rotation, gear 24 changes the distance between the mounting tube 25 and the central axis of the turntable 23. This change in distance alters the circumferential dimension of the mounting tube 25's rotation. Consequently, the amplitude of the oscillation of the screen plate 21 caused by the mounting tube 25 changes. When gear 24 and the semi-toothed ring 18 are not meshing, the circumferential trajectory of the mounting tube 25 remains unchanged because the interior of the semi-toothed ring 18 is half toothed and half toothless. As the turntable 23 rotates... During the week, the installation tube 25 changes its movement trajectory and does not change its movement trajectory. When the turntable 23 continues to rotate, the movement trajectory of the installation tube 25 will keep changing. At this time, the sieve plate 21 inside the screening box 1 will continuously change the amplitude of its swing, so as to make the sieve plate 21 vibrate at different amplitudes. During the lifting and shaking of the sieve plate 21, the superoxide dismutase on the sieve plate 21 slides down along the inclined sieve plate 21, thereby avoiding the superoxide dismutase on the sieve plate 21 from squeezing, rubbing and pulling against each other, so that the superoxide dismutase can pass through the sieve holes on the sieve plate 21 better, thereby improving the screening effect of the sieve plate 21 on the superoxide dismutase.

[0027] A feeding mechanism 3 is provided on the screening box 1. The feeding mechanism 3 is used to initially filter superoxide dismutase and allow superoxide dismutase to enter the interior of the screening box 1. A chute 14 is provided on the upper surface of the screening box 1, which runs through the screening box 1. The feeding mechanism 3 includes an inclined bucket 31 that is slidably connected to the inside of the chute 14 and is inclined. The top and bottom of the inclined bucket 31 are located on the outside and inside of the screening box 1, respectively. The inclined bucket 31 slows down the falling speed of superoxide dismutase. When superoxide dismutase passes through the feeding mechanism 3, if the feeding mechanism 3 cannot move, the superoxide dismutase falling from the feeding mechanism 3 onto the sieve plate 21 will accumulate together. The superoxide dismutase that accumulates together is not easy to screen. At this time, some positions on the sieve plate 21 will not be able to screen superoxide dismutase, and some places will not be able to screen superoxide dismutase completely. This will cause superoxide dismutase to accumulate on the sieve plate 21.

[0028] To ensure the screening effect of sieve plate 21 on superoxide dismutase, a vertical bucket 35 connected to the inclined bucket 31 is fixedly installed at the top of the inclined bucket 31. A filter plate 36 is fixedly installed inside the vertical bucket 35. The filter plate 36 performs preliminary screening and filtration of superoxide dismutase. Inside the screening box 1, a baffle 13 is rotatably connected via a torsion spring. The torsion spring drives the lower end of the baffle 13 to approach the sieve plate 21, and the bottom of the baffle 13 is in close contact with the upper surface of the sieve plate 21. The baffle 13 is located below the inclined bucket 31. A movable opening penetrating the screening box 1 is provided on one side of the upper surface of the screening box 1. A mounting shell 32 is fixedly installed on the surface of the trough 15 and the inclined bucket 31 near the moving trough 15. The lower end of the mounting shell 32 extends through the moving trough 15 into the interior of the screening box 1. A movable rod 33 is slidably connected inside the mounting shell 32. The lower end of the movable rod 33 extends to the outside of the mounting shell 32. The length of the movable rod 33 inside the mounting shell 32 is greater than the diameter of the turntable 23. The lower end of the movable rod 33 is rotatably connected to the outside of the mounting tube 25. During the rotation of the mounting tube 25 driven by the turntable 23 and the gear 24, the rotation of the mounting tube 25 will drive the movable rod 33 to rotate circumferentially. During the circular motion of the movable rod 33, it slides up and down reciprocally inside the mounting shell 32. Simultaneously, the movable rod 33 moves horizontally, causing the mounting shell 32 and the inclined hopper 31 to reciprocate. The operator pours superoxide dismutase into the vertical hopper 35. The reciprocating movement of the inclined hopper 31 and the vertical hopper 35 causes the superoxide dismutase inside the vertical hopper 35 to shake. The feeding mechanism 3 uses this shaking force to perform preliminary screening of the superoxide dismutase inside the hopper. The time-sharing feeding mechanism 3 moves back and forth in the chute 14. At this time, the superoxide dismutase falling from the feeding mechanism 3 is dispersed, so that the superoxide dismutase in the feeding mechanism 3 is evenly separated, avoiding the accumulation of superoxide dismutase. The superoxide dismutase coming out of the feeding mechanism 3 falls on the baffle 13 and slides along the baffle 13 onto the sieve plate 21, so that the superoxide dismutase is gradually spread on the surface of the sieve plate 21, avoiding the accumulation of a large amount of superoxide dismutase on the sieve plate 21 in a short time, and improving the sieving effect of the sieve plate 21 on superoxide dismutase.

[0029] Meanwhile, guide rails 19 are fixedly installed on both sides of the inclined bucket 31 on the upper surface of the screening box 1. A slider 34 is fixedly installed on the surface of the inclined bucket 31 near the guide rails 19. The slider 34 is slidably connected to the guide rails 19 and moves along the axis of the guide rails 19. During the reciprocating movement of the inclined bucket 31, the guide rails 19 and slider 34 restrict the position and movement path of the inclined bucket 31, causing it to move along the axis of the guide rails 19, increasing the stability of the inclined bucket 31 during reciprocating movement. Simultaneously, in the chute 14 and the moving chute... Each of the 15 is equipped with a bellows cover 16. The two ends of the bellows cover 16 are fixedly mounted on the inclined bucket 31, the mounting shell 32 and the screening box 1, respectively. During the reciprocating movement of the inclined bucket 31 and the mounting shell 32, the inclined bucket 31 and the mounting shell 32 drive the bellows cover 16 to extend and retract. The bellows cover 16, which extends and retracts, seals the slide chute 14 and the moving chute 15, blocking dust from the outside of the screening box 1 and preventing dust from entering the interior of the screening box 1 through the slide chute 14 and the moving chute 15, which would cause the superoxide dismutase to be contaminated.

[0030] The working principle of this scheme is as follows: Motor 28 drives turntable 23 to rotate, and the rotating turntable 23 drives gear 24 to rotate. At the same time, under the restriction of semi-gear ring 18, gear 24 rotates inside turntable 23. The rotating turntable 23 and gear 24 drive mounting tube 25 to rotate. During the rotation of mounting tube 25, the connecting frame 26 drives screen plate 21 to reciprocate around the hinge with screening box 1. With the cooperation of semi-gear ring 18, screen plate 21 vibrates slightly during reciprocating rotation. At the same time, the rotating mounting tube 25 drives inclined bucket 31 to reciprocate through movable rod 33 and mounting shell 32, so that inclined bucket 31 reciprocates along the axis of guide rail 19. The operator pours superoxide dismutase into the interior of vertical bucket 35. The reciprocating movement of inclined bucket 31 and vertical bucket 35 shakes the superoxide dismutase inside. The superoxide dismutase is initially filtered by filter plate 36 inside vertical bucket 35. Superoxide dismutase (SOD) slides slowly down the inclined surface inside the hopper 31 onto the baffle 13 and then slides along the baffle 13 onto the sieve plate 21. The SOD on the sieve plate 21 slides down the inclined surface of the sieve plate 21. The sieve plate 21, through reciprocating rotation and shaking, performs sieving of the pre-filtered SOD, thereby preventing SOD from accumulating on the surface of the sieve plate 21 and improving the sieving effect of the sieve plate 21 on SOD. The sieved SOD falls into the collection box 11 for storage, which is convenient for subsequent processing by the staff. When there are many impurities sieved on the sieve plate 21, the staff opens the side door 121 corresponding to the position of the sieve plate 21, so that the staff can remove the impurities sieved on the sieve plate 21 through the discharge port 12, thus preventing impurities from accumulating on the sieve plate 21 and reducing the sieving effect of the sieve plate 21 on SOD.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A screening and separating device for superoxide dismutase, comprising a screening box (1), a collecting box (11) is arranged at the bottom of the screening box (1), one side of the collecting box (11) extends to the outside of the screening box (1), and the collecting box (11) is used for collecting screened superoxide dismutase, characterized in that: The screening box (1) is provided with a feeding mechanism (3), which is used for preliminarily filtering superoxide dismutase and making the superoxide dismutase enter the inside of the screening box (1), the inside of the screening box (1) is provided with a screening mechanism (2), which is used for screening the superoxide dismutase, the screening mechanism (2) comprises a sieve plate (21) which is hingedly arranged in the inside of the screening box (1) and is arranged obliquely, one end of the sieve plate (21) at the low position is hingedly connected with the screening box (1), and the higher end of the sieve plate (21) is fixedly provided with a connecting rod (22), a circular groove (17) penetrating through the screening box (1) is formed in the side wall of the screening box (1), a rotating disc (23) is coaxially and rotatably connected in the inside of the circular groove (17), an installation groove deviating from the axis of the rotating disc (23) is formed in the surface of the rotating disc (23) close to the sieve plate (21), the installation groove is in communication with the circular groove (17), a gear (24) is rotatably connected in the inside of the installation groove, a half-tooth ring (18) is coaxially and fixedly arranged on the inner surface of the circular groove (17), the half-tooth ring (18) is engaged with the gear (24), an installation pipe (25) is fixedly arranged on the surface of the gear (24) close to the sieve plate (21), a connecting frame (26) is slidably arranged in the inside of the installation pipe (25), and one end of the connecting frame (26) away from the gear (24) extends to the outside of the installation pipe (25). ​ 2. The screening device for superoxide dismutase according to claim 1, wherein: The upper surface of the screening box (1) is provided with a sliding groove (14) penetrating through the screening box (1), the feeding mechanism (3) comprises an inclined hopper (31) which is obliquely arranged in the inside of the sliding groove (14) and is slidably connected, the top and bottom of the inclined hopper (31) are located outside and inside the screening box (1) respectively, the obliquely arranged inclined hopper (31) is used for slowing down the falling speed of the superoxide dismutase, the top of the inclined hopper (31) is fixedly provided with a vertical hopper (35) which is in communication with the inclined hopper (31), and a filter plate (36) is fixedly arranged in the inside of the vertical hopper (35), so that the superoxide dismutase is preliminarily screened and filtered.

3. The screening device for superoxide dismutase according to claim 2, wherein: The upper surface of the screening box (1) is provided with a sliding groove (14) penetrating through the screening box (1), the feeding mechanism (3) comprises an inclined hopper (31) which is obliquely arranged in the inside of the sliding groove (14) and is slidably connected, the top and bottom of the inclined hopper (31) are located outside and inside the screening box (1) respectively, the obliquely arranged inclined hopper (31) is used for slowing down the falling speed of the superoxide dismutase, the top of the inclined hopper (31) is fixedly provided with a vertical hopper (35) which is in communication with the inclined hopper (31), and a filter plate (36) is fixedly arranged in the inside of the vertical hopper (35), so that the superoxide dismutase is preliminarily screened and filtered.

4. The screening device for superoxide dismutase according to claim 2, wherein: The upper surface of the screening box (1) is fixed with guide rails (19) on both sides of the chute (14), the surface of the hopper (31) close to the guide rails (19) is fixed with sliding blocks (34) corresponding to the positions of the guide rails (19), the sliding blocks (34) are slidingly connected to the guide rails (19), and the sliding blocks (34) move along the axis direction of the guide rails (19).

5. The screening device for superoxide dismutase according to claim 1, wherein: The outer surface of the screening box (1) close to the rotating disc (23) is fixed with a mounting rack (27), the top of the mounting rack (27) is fixed with a motor (28), the output shaft of the motor (28) is fixedly connected to the coaxial rotating center of the rotating disc (23) through a shaft coupling, and the rotating output shaft of the motor (28) drives the rotating disc (23) to rotate.

6. The screening device for superoxide dismutase according to claim 1, wherein: The inside of the screening box (1) is rotationally connected with an inclined baffle (13) through a torsion spring, the lower end of the baffle (13) is driven by the torsion spring to be close to the screen plate (21), the bottom of the baffle (13) is in close contact with the upper surface of the screen plate (21), the baffle (13) is located below the hopper (31), the surface of the screening box (1) away from the rotating disc (23) is provided with a discharge port (12) penetrating through the screening box (1), the discharge port (12) corresponds to the hinged position of the screen plate (21) and the screening box (1), and the inside of the discharge port (12) is rotationally connected with a side door (121).

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