Protein fiber raw material screening and separating device

Abstract

The invention relates to the technical field of plant protein extraction equipment, in particular to a protein fiber raw material screening and separating device which comprises a screening barrel with supporting legs at the bottom, an opening is formed in one side of the screening barrel, a cover plate covering the opening is rotationally connected to one side of the screening barrel, and a handle is fixedly connected to the side, away from the screening barrel, of the cover plate. A multi-zone screening assembly for screening the soybean meal at different positions and repeatedly screening the soybean meal when the soybean meal moves in the length direction of the screening barrel is mounted in the screening barrel; the multi-area screening assembly comprises an inclined pipe with one end extending out of the screening barrel. The problems that due to the fact that existing soybean meal screening equipment is uneven in screening degree at different positions, time needed for completing one-time complete screening of soybean meal in a roller is long, otherwise, due to the low screening degree of the soybean meal at part of the positions, much small-particle soybean meal powder is left, and screening efficiency is high are solved. And the screening time is difficult to flexibly shorten according to the screening degree.

Description

Technical Field

[0001] The invention relates to the technical field of plant protein extraction equipment, in particular to a protein fiber raw material screening and separation device. Background Art

[0002] Soybean protein fiber is a new type of regenerated plant protein fiber. Its main raw material is soybean meal after oil extraction. First, the soybean meal is ground and crushed, and sieved to obtain soybean meal powder with a particle size of no more than 2 mm, and then the protein fiber is extracted. After searching, the patent with application number CN202323065312.4 discloses a drum screening device for screening soybean meal flakes. Material is added to the main screen body through the feeding hopper, and the screened material is discharged through the lower hopper and collected in the receiving box directly below the lower hopper.

[0003] In the above device, soybean meal is accumulated at the bottom of the drum. When the drum rolls, the soybean meal at the lowest position always rolls to the bottom of the drum first, resulting in a long time for the soybean meal at a high position to move to the bottom of the drum for screening. The soybean meal initially at the bottom of the drum is screened repeatedly due to its position, resulting in uneven screening of soybean meal at different positions. It takes a long time to complete a complete screening of the soybean meal in the drum. Otherwise, soybean meal at some positions will retain more small-particle soybean meal powder due to the low screening degree, and it is difficult to flexibly shorten the screening time according to the degree of screening. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a protein fiber raw material screening and separation device, which solves the problem that the existing soybean meal screening equipment has uneven screening degrees at different positions, resulting in a long time required to complete a complete screening of the soybean meal in the drum. Otherwise, soybean meal at some positions will have a low screening degree, resulting in a large amount of small-particle soybean meal powder remaining, making it difficult to flexibly shorten the screening time according to the degree of screening.

[0005] To achieve the above object, the present invention provides the following technical solutions: a protein fiber raw material screening and separation device, comprising a screening barrel with supporting legs at the bottom, an opening being opened on one side of the screening barrel, a cover plate covering the opening being rotatably connected to one side of the screening barrel, a handle being fixedly connected to the side of the cover plate away from the screening barrel, a multi-zone screening component being installed inside the screening barrel for screening soybean meal at different positions at the same time, and repeatedly screening the soybean meal when the soybean meal moves along the length direction of the screening barrel;

[0006] The multi-zone screening component includes an inclined tube with one end extending to the outside of the screening barrel, a support frame for supporting both ends of the inclined tube is installed at the inner bottom of the screening barrel, the inclined tube is rotatably connected to the support frame, a driving component for driving the inclined tube to rotate is installed at the inner bottom of the screening barrel, a plurality of side discharge components are provided on the outer side of the inclined tube along its length direction, and a plurality of feed ports are opened at one end of the inclined tube located outside the screening barrel.

[0007] Preferably, the side discharge assembly includes a plurality of coaxial intermediate tubes connected to the inclined tube, the end of the intermediate tube away from the inclined tube is connected to a rotating barrel with openings at both ends, a plurality of circular holes are opened on the outside of the rotating barrel, and the end of the rotating barrel away from the intermediate tube is provided with an elastic membrane covering its opening.

[0008] Preferably, a plurality of limit rods parallel to the inclined tube are fixedly connected to the inner wall of the screening barrel, the elastic membrane is slidably connected to the limit rods, and a side plate is fixedly connected between one end of the limit rod close to the cover plate and the screening barrel.

[0009] Preferably, the driving assembly includes a pad fixedly connected to the inner bottom of the screening barrel, the upper surface of the pad has the same inclination angle as the inclined tube, the top of the pad is fixedly connected to a motor, and a belt is connected between the output end of the motor and the inclined tube.

[0010] Preferably, a feed frame is fixedly connected to the side of the screening barrel away from the cover plate, the inclined tube movably passes through the feed frame, the lower half of the inclined tube is in contact with the inner bottom of the feed frame, the top of the feed frame is connected to a feed hopper, and the feed port on the inclined tube is located inside the feed frame.

[0011] Preferably, the end of the inclined tube close to the cover plate is provided with a plurality of limit plates movably extending into the interior thereof, the limit plates extend to one end of the inclined tube and are fixedly connected with a baffle for blocking the bottom opening of the inclined tube, and a plurality of elastic strips are fixedly connected between the baffle and the inclined tube.

[0012] Preferably, a storage box for accommodating soybean meal dropped from the bottom opening of the inclined tube is slidably connected to the inner bottom of the screening barrel, and handles are fixedly connected to both sides of the storage box.

[0013] Preferably, a discharge port is provided at the bottom of the screening barrel, a swing plate for covering the discharge port is rotatably connected to the bottom of the screening barrel, and a bending frame is fixedly connected to the bottom of the swing plate.

[0014] Preferably, one end of the rotating barrel close to the middle tube is connected with a sleeve, one end of the middle tube movably extends into the inside of the sleeve, and both sides of the sleeve are provided with a bolt with one end movably extending into the inside thereof.

[0015] Preferably, the support frame includes a longitudinal column sleeved on the outside of the inclined tube, the bottom of the longitudinal column is fixedly connected to a bottom plate, the bottom plate is slidably connected to the inner bottom of the screening barrel, and the top of the bottom plate is provided with a plurality of bolts 2 with one end movably extending into the interior of the screening barrel.

[0016] Compared with the prior art, the present invention provides a protein fiber raw material screening and separation device, which has the following beneficial effects:

[0017] 1. By setting up a multi-zone screening component, multiple groups of side discharge components along the length direction of the inclined tube can screen the soybean meal at the same time, and the soybean meal can be screened repeatedly by multiple groups of side screening components to ensure a more thorough screening. Compared with the existing drum screening equipment, the screening uniformity is improved, and the time required for a complete screening of the soybean meal in the drum can be reduced, and the early stopping of the screening can be prevented, resulting in more small-particle soybean meal powder remaining in some positions due to the low screening degree, and the screening time can be flexibly shortened according to the degree of screening.

[0018] 2. By setting up the side discharge component, the distance that the soybean meal moves and is screened inside the rotating barrel can be extended, and at the same time, the amplitude of the soybean meal movement is increased, making the soybean meal move more violently, thereby helping to improve the screening effect of the soybean meal.

[0019] 3. By setting the limit rod, the movement range of the soybean meal during screening can be increased, so that the soybean meal can move back and forth inside the rotating barrel, so that the soybean meal can be moved to different positions of the rotating barrel to produce a vibration effect for screening.

[0020] 4. Through the set feed hopper and feed frame, you only need to pour the soybean meal that needs to be screened into the feed hopper, and you can gradually replenish and screen it inside the multi-zone screening component. You can add the soybean meal that needs to be screened at any time, and you can replenish the soybean meal without interrupting the screening process of the soybean meal, so that the feeding and screening process of the soybean meal can be continuous.

[0021] 5. The baffles and elastic strips can prevent the soybean meal from falling directly into the storage box without being screened, so that the soybean meal stays in the inclined tube to complete a certain degree of screening, and then a small amount of soybean meal with a larger volume that has been screened at the bottom of the inclined tube is discharged each time, so that the discharge process of the soybean meal with a larger volume that has been screened is more uniform.

[0022] 6. Through the set sleeve and bolt, it is convenient to replace the rotating barrel with round holes of different diameters to adapt to the screening of soybean meal powder with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 A partial cutaway view of the present invention as a whole;

[0026] Figure 3 It is a schematic diagram of the structure of the internal components of the screening barrel of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the side discharge assembly of the present invention;

[0028] Figure 5 It is a partial cutaway view of the feed frame of the present invention;

[0029] Figure 6 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0030] Figure 7 is a cross-sectional view of the tilting tube, support frame and drive assembly of the present invention;

[0031] Figure 8 It is a partial cutaway view of the screening barrel of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the inclined tube, baffle and storage box of the present invention.

[0033] In the figure: 1. screening barrel; 2. cover plate; 3. handle; 4. multi-zone screening assembly; 41. tilting tube; 42. support frame; 421. longitudinal column; 422. bottom plate; 423. bolt two; 43. drive assembly; 431. pad; 432. motor; 433. belt; 44. side discharge assembly; 441. middle tube; 442. rotating barrel; 443. elastic membrane; 5. limit rod; 6. side plate; 7. feed frame; 8. feed hopper; 9. limit plate; 10. baffle; 11. elastic strip; 12. storage box; 13. handle; 14. swing plate; 15. bending frame; 16. sleeve; 17. bolt one. DETAILED DESCRIPTION

[0034] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0035] Embodiment 1

[0036] In order to screen soybean meal from multiple different positions at the same time and keep the screening degree of soybean meal at different positions uniform, so as to be able to stop screening at any time to obtain soybean meal and soybean powder with the same screening degree, Figure 1-Figure 4 As one embodiment of the present invention, a protein fiber raw material screening and separation device is proposed, comprising a screening barrel 1 with supporting legs at the bottom, an opening is opened on one side of the screening barrel 1, a cover plate 2 covering the opening is rotatably connected to one side of the screening barrel 1, a handle 3 is fixedly connected to the side of the cover plate 2 away from the screening barrel 1, a multi-zone screening component 4 is installed inside the screening barrel 1 for screening soybean meal at different positions at the same time, and repeatedly screening the soybean meal when the soybean meal moves along the length direction of the screening barrel 1, the multi-zone screening component 4 includes an inclined tube 41 with one end extending to the outside of the screening barrel 1, and the inside of the screening barrel 1 A support frame 42 for supporting both ends of the inclined tube 41 is installed at the side bottom, and the inclined tube 41 is rotatably connected to the support frame 42. A driving assembly 43 for driving the inclined tube 41 to rotate is installed at the inner bottom of the screening barrel 1. A plurality of side discharge assemblies 44 are provided on the outer side of the inclined tube 41 along its length direction. A plurality of feed ports are provided at one end of the inclined tube 41 located outside the screening barrel 1. When in use, the soybean meal to be screened is put into the inclined tube 41 from the feed port at one end of the inclined tube 41 located outside the screening barrel 1, and then the soybean meal moves inside the inclined tube 41 for screening. The process is as follows:

[0037] First, the soybean meal inside the inclined tube 41 rolls along the inclined pipe to the side discharge assembly 44 at the end farthest from the cover plate 2, and the driving assembly 43 drives the inclined tube 41 and the side discharge assembly 44 to rotate. When the side discharge assembly 44 rotates to the bottom of the inclined tube 41, the soybean meal inside the inclined tube 41 falls into the side discharge assembly 44 below it under the action of gravity, and then the side discharge assembly 44 continues to rotate with the inclined tube 41. In this process, the soybean meal with a larger internal diameter stays in the side discharge assembly 44, while the soybean meal powder with a smaller diameter leaks out from the side of the side discharge assembly 44.

[0038] As the side discharge assembly 44 is continuously raised and its angle is continuously changed, the soybean meal inside it gradually moves from the position farthest from the inclined tube 41 to the position closest to the inclined tube 41, so that the soybean meal is screened at different positions inside the side discharge assembly 44, and a certain position of the side discharge assembly 44 is prevented from being blocked by soybean meal with a larger diameter and unable to be screened, until the side discharge assembly 44 rotates to the top of the inclined tube 41. At this time, the opening of the side discharge assembly 44 faces downward, and the soybean meal inside it falls into the inclined tube 41. The soybean meal that falls into the inclined tube 41 will not only continue to fall downward into the side discharge assembly 44 below it, but also It will move along the length direction of the inclined tube 41 to the next group of side discharge components 44 for screening, so that multiple groups of side discharge components 44 along the length direction of the inclined tube 41 can screen the soybean meal at the same time, and the soybean meal will be screened repeatedly by multiple groups of side screening components to ensure more thorough screening. Compared with the existing drum screening equipment, the screening uniformity is improved, and the time required for a complete screening of the soybean meal in the drum can be reduced, and the early cessation of screening can be prevented, resulting in more small-particle soybean meal powder remaining in some positions due to the low screening degree, and the screening time can be flexibly shortened according to the degree of screening.

[0039] In order to increase the movement range of soybean meal inside the screening equipment and improve the screening effect of soybean meal, refer to Figure 4The side discharge assembly 44 includes a plurality of coaxial intermediate tubes 441 connected to the inclined tube 41, and one end of the intermediate tube 441 away from the inclined tube 41 is connected to a rotating barrel 442 with openings at both ends. The outer side of the rotating barrel 442 is provided with a plurality of circular holes, and the end of the rotating barrel 442 away from the intermediate tube 441 is provided with an elastic membrane 443 covering its opening. When in use, the soybean meal inside the inclined tube 41 passes through the intermediate tube 441 and enters the rotating barrel 442 rotated below it, and the elastic membrane 443 is squeezed downward by the weight of the soybean meal itself and the inertia of falling, and the elastic membrane 443 is squeezed downward and concave, so that the soybean meal drops to a lower position. It is specified that the end of the rotating barrel 442 close to the inclined tube 41 is the proximal end, and the end of the rotating barrel 442 away from the inclined tube 41 is the distal end. At this time, the soybean meal gathers at the distal end. The soybean meal powder with a smaller diameter falls from the circular hole at the far end to complete screening. When the rotating barrel 442 rotates with the tilting tube 41, the rotating barrel 442 gradually tilts, and the soybean meal originally gathered at the far end gradually moves toward the near end along the rotating barrel 442. In this process, the movement of the soybean meal causes the soybean meal powder with a smaller diameter inside it to fall downward, and finally passes through the circular hole to complete screening. After the rotating barrel 442 is tilted, a part of the weight of the soybean meal inside it is supported by the side wall of the rotating barrel 442, resulting in a reduction in the squeezing force on the elastic membrane 443. The soybean meal increases the amplitude of movement along the rotating barrel 442 under the push of the elastic force of the elastic membrane 443, which can extend the distance that the soybean meal moves for screening inside the rotating barrel 442, while increasing the amplitude of the soybean meal movement, making the soybean meal move more violently, thereby helping to improve the screening effect of the soybean meal.

[0040] In order to enhance the movement of soybean meal in the rotating drum 442, refer to Figure 3 and Figure 4The inner wall of the screening barrel 1 is fixedly connected with a plurality of limit rods 5 parallel to the inclined tube 41, the elastic membrane 443 is slidably connected with the limit rod 5, and a side plate 6 is fixedly connected between the end of the limit rod 5 close to the cover plate 2 and the screening barrel 1. When in use, the soybean meal inside the rotating barrel 442 is pushed away from the inclined tube 41 by the centrifugal effect of the rotation, so that the overall diameter of the multi-zone screening component 4 becomes larger. When the rotating barrel 442 rotates to the limit rod 5, the elastic membrane 443 that is squeezed and protruded outward is blocked by the limit rod 5. After being squeezed by the limit rod 5, the elastic membrane 443 moves toward the rotating barrel 442 until it is Until the elastic membrane 443 is attached to the rotating barrel 442, during this process, the elastic membrane 443 pushes the soybean meal to move toward the proximal end of the rotating barrel 442, until the rotating barrel 442 and the elastic membrane 443 pass through the limiting rod 5, and the elastic membrane 443 is no longer blocked by the limiting rod 5 and protrudes outward again under the centrifugal action of the soybean meal and itself, and the soybean meal inside the rotating barrel 442 can extend a distance to the outside of the rotating barrel 442, which can increase the movement amplitude of the soybean meal during screening, and make the soybean meal move back and forth inside the rotating barrel 442, so that the soybean meal moves to different positions of the rotating barrel 442 to produce a vibration effect for screening.

[0041] In order to achieve the purpose of driving the inclined pipe 41 and the side discharge assembly 44 to rotate for screening, refer to Figure 3 The driving assembly 43 includes a pad 431 fixedly connected to the inner bottom of the screening barrel 1, the upper surface of the pad 431 has the same inclination angle as the inclined tube 41, and the top of the pad 431 is fixedly connected to a motor 432, and a belt 433 is transmission-connected between the output end of the motor 432 and the inclined tube 41. When in use, the motor 432 drives the inclined tube 41 to rotate through the belt 433, and then drives the side discharge assembly 44 to rotate, so that the soybean meal continuously moves in the side discharge assembly 44 to complete the screening process.

[0042] Embodiment 2

[0043] In order to facilitate the addition of soybean meal that needs to be screened, refer to Figure 1-Figure 5On the basis of the first embodiment, a feeding frame 7 is fixedly connected to the side of the screening barrel 1 away from the cover plate 2, and an inclined tube 41 movably penetrates the feeding frame 7. The lower half of the inclined tube 41 fits with the inner bottom of the feeding frame 7, and the top of the feeding frame 7 is connected with a feeding hopper 8. The feeding port on the inclined tube 41 is located inside the feeding frame 7. When in use, the soybean meal to be screened is poured into the feeding hopper 8, and then falls from the feeding hopper 8 into the feeding frame 7. Since the lower half of the inclined tube 41 fits with the inner bottom of the feeding frame 7, the soybean meal cannot move to the bottom of the inclined tube 41 and all stays on the side and top of the inclined tube 41. During the rotation of the inclined tube 41, the feeding port on the inclined tube 41 gradually moves away from the feeding port. The lower half area of ​​the feed frame 7 is rotated to the side and top of the inclined tube 41, and the soybean meal in the feed frame 7 falls from the feed port into the inclined tube 41, and then slides along the inclined tube 41 to the end close to the cover plate 2 for screening, until the soybean meal in the feed hopper 8 and the feed frame 7 all enters the inclined tube 41. The staff can continue to replenish the soybean meal that needs to be screened into the feed hopper 8. It only needs to pour the soybean meal that needs to be screened into the feed hopper 8, and it can be gradually replenished and screened into the multi-zone screening component 4. The soybean meal that needs to be screened can be added at any time, and the soybean meal can be replenished without interrupting the screening process of the soybean meal, which can make the feeding and screening process of the soybean meal continuous.

[0044] Embodiment 3

[0045] As the soybean meal gradually moves along the inclined tube 41 toward the end close to the cover plate 2, the soybean meal with a larger volume after screening will gradually accumulate at the end of the inclined tube 41 close to the cover plate 2. If it is discharged directly, there is a situation where the soybean meal slides too quickly along the inclined tube 41 and is discharged without being thoroughly screened, causing part of the soybean meal to slide out of the inclined tube 41 too quickly. In order to make the soybean meal stay in the inclined tube 41 for a period of time to ensure sufficient screening, refer to Figure 1-Figure 9 The cam 10 is used to hold the cam 12 in place and the cam 11 is used to hold the cam 12 in place.

[0046] The weight of the soybean meal at the bottom end of the inclined tube 41 is increased until the amount of soybean meal moved to the bottom end of the inclined tube 41 increases, and the baffle 10 is pushed to move. The baffle 10 stretches and deforms the elastic strip 11. At this time, the bottom end of the inclined tube 41 is no longer blocked by the baffle 10 and opens. A portion of the soybean meal at the bottom end of the inclined tube 41 falls into the storage box 12. Since the remaining weight of the soybean meal inside the inclined tube 41 decreases after a portion of it falls, the elastic strip 11 pulls the baffle 10 again to block the bottom end of the inclined tube 41, so that the soybean meal accumulated at the bottom end of the inclined tube 41 cannot be discharged and continues to enter the side discharge assembly 44 for screening, which can prevent the soybean meal from falling directly into the storage box 12 without being screened, and allows the soybean meal to stay in the inclined tube 41 to complete a certain degree of screening, and then a small amount of soybean meal with a larger volume that is at the bottom of the inclined tube 41 is discharged each time, so that the discharge process of the soybean meal with a larger volume that has been screened is more uniform.

[0047] In order to more conveniently take away the soybean meal powder with smaller diameter, refer to Figure 8 The bottom of the screening barrel 1 is provided with a discharge port, and the bottom of the screening barrel 1 is rotatably connected to a swing plate 14 for covering the discharge port, and the bottom of the swing plate 14 is fixedly connected to a bending frame 15. When in use, the swing plate 14 blocks the discharge port at the bottom of the screening barrel 1. In the process of screening soybean meal by the multi-zone screening assembly 4, soybean meal with a smaller diameter passes through the round hole of the rotating barrel 442 and falls onto the swing plate 14 in the middle of the screening barrel 1. When the screening of the soybean meal is completed and the material needs to be taken, the staff puts the containing box under the swing plate 14, and then holds the bending frame 15 to open the swing plate 14, so that the soybean meal powder with a smaller diameter on the swing plate 14 falls into the containing box, and then opens the cover plate 2, and uses a brush to sweep the soybean meal powder remaining at the bottom of the inner side of the screening barrel 1 to the swing plate 14 and drop it into the containing box, so as to facilitate the material taking after the soybean meal is screened.

[0048] In order to facilitate the screening of soybean meal powder according to the required size, refer to Figure 2 and Figure 3, one end of the rotating barrel 442 close to the middle pipe 441 is connected with a sleeve 16, one end of the middle pipe 441 is movably extended into the sleeve 16, and both sides of the sleeve 16 are provided with a bolt 17 with one end movably extended into the inside thereof. When in use, open the swing plate 14, move the rotating barrel 442 with a round hole of the target size to the discharge port below the screening barrel 1, and then put the sleeve 16 on the rotating barrel 442 on the middle pipe 441, use the bolt 17 to fix the sleeve 16 and the rotating barrel 442 on the middle pipe 441, and then Rotate the inclined tube 41 to drive the intermediate tube 441 on which the rotating barrel 442 has not been installed to rotate to the bottom of the inclined tube 41, and then continue to install the rotating barrel 442 from the discharge port at the bottom of the screening barrel 1 to the intermediate tube 441, and then continue to rotate the inclined tube 41 until all the intermediate tubes 441 are installed with the rotating barrel 442, and then close the swing plate 14, and pour soybean meal into the inclined tube 41 for screening, so as to facilitate the replacement of the rotating barrel 442 with round holes of different diameters to adapt to the screening of soybean meal powder with different diameters.

[0049] In order to facilitate the installation of the multi-zone screening assembly 4 into the screening barrel 1, refer to Figure 7 The support frame 42 includes a longitudinal column 421 sleeved on the outside of the inclined tube 41, and a bottom plate 422 is fixedly connected to the bottom of the longitudinal column 421, and the bottom plate 422 is slidably connected to the inner bottom of the screening barrel 1. The top of the bottom plate 422 is provided with a plurality of bolts 423 with one end movably extending to the inside of the screening barrel 1. When in use, the longitudinal column 421 is first rotated along the inclined tube 41 to tilt at a certain angle to ensure that the inclined tube 41 can be inserted into the feed frame 7 at a certain tilt angle after entering the inside of the screening barrel 1, and then the inclined tube 41 with the support frame 42 is moved from the opening on one side of the screening barrel 1 to the inside of the screening barrel 1, and then the inclined tube 41 is inserted into the feeding frame 7. One end of 41 passes through the screening barrel 1 and the feed frame 7 until the feed port on the inclined tube 41 passes through the feed frame 7 and moves to the outside of the feed frame 7, then rotate the longitudinal column 421 along the inclined tube 41 to the vertical direction, and then move the inclined tube 41 toward the cover plate 2 until the bottom plate 422 is pressed against the inner bottom of the screening barrel 1. At this time, the feed port of the inclined tube 41 moves to the inside of the feed frame 7, and then use bolt 2 423 to fix the bottom plate 422, the longitudinal column 421 and the inclined tube 41 to the inside of the screening barrel 1, so that the multi-zone screening component 4 can be detachably installed in the screening barrel 1, which is convenient for the later disassembly and maintenance of the multi-zone screening component 4.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protein fiber raw material screening and separation device, comprising a screening barrel (1) with supporting legs at the bottom, characterized in that: The screening barrel (1) has an opening on one side, a cover plate (2) covering the opening is rotatably connected to one side of the screening barrel (1), a handle (3) is fixedly connected to the side of the cover plate (2) away from the screening barrel (1), and a multi-zone screening component (4) is installed inside the screening barrel (1) for screening soybean meal at different positions at the same time and repeatedly screening the soybean meal when the soybean meal moves along the length direction of the screening barrel (1); The multi-zone screening component (4) comprises an inclined tube (41) with one end extending to the outside of the screening barrel (1); a support frame (42) for supporting both ends of the inclined tube (41) is installed at the inner bottom of the screening barrel (1); the inclined tube (41) is rotatably connected to the support frame (42); a driving component (43) for driving the inclined tube (41) to rotate is installed at the inner bottom of the screening barrel (1); a plurality of side discharge components (44) are provided on the outer side of the inclined tube (41) along its length direction; and a plurality of feed ports are provided at one end of the inclined tube (41) located outside the screening barrel (1).

2. A protein fiber raw material screening and separation device according to claim 1, characterized in that: The side discharge assembly (44) comprises a plurality of coaxial intermediate tubes (441) connected to the inclined tube (41); one end of the intermediate tube (441) away from the inclined tube (41) is connected to a rotating barrel (442) with openings at both ends; a plurality of circular holes are provided on the outer side of the rotating barrel (442); and one end of the rotating barrel (442) away from the intermediate tube (441) is provided with an elastic membrane (443) covering the opening thereof.

3. A protein fiber raw material screening and separation device according to claim 2, characterized in that: A plurality of limit rods (5) parallel to the inclined tube (41) are fixedly connected to the inner wall of the screening barrel (1); the elastic membrane (443) is slidably connected to the limit rods (5); and a side plate (6) is fixedly connected between one end of the limit rod (5) close to the cover plate (2) and the screening barrel (1).

4. The protein fiber raw material screening and separation device according to claim 1, characterized in that: The driving assembly (43) comprises a cushion block (431) fixedly connected to the inner bottom of the screening barrel (1); the upper surface of the cushion block (431) has the same inclination angle as the inclined tube (41); the top of the cushion block (431) is fixedly connected to a motor (432); and a belt (433) is transmission-connected between the output end of the motor (432) and the inclined tube (41).

5. The protein fiber raw material screening and separation device according to claim 1, characterized in that: A feed frame (7) is fixedly connected to the side of the screening barrel (1) away from the cover plate (2); the inclined tube (41) movably penetrates the feed frame (7); the lower half of the inclined tube (41) is in contact with the inner bottom of the feed frame (7); the top of the feed frame (7) is connected to a feed hopper (8); and the feed port on the inclined tube (41) is located inside the feed frame (7).

6. The protein fiber raw material screening and separation device according to claim 1, characterized in that: The end of the inclined tube (41) close to the cover plate (2) is provided with a plurality of limit plates (9) movably extending into the interior thereof; the limit plates (9) extending to one end of the inclined tube (41) are fixedly connected with a baffle plate (10) for blocking the bottom opening of the inclined tube (41); and a plurality of elastic strips (11) are fixedly connected between the baffle plate (10) and the inclined tube (41).

7. The protein fiber raw material screening and separation device according to claim 1, characterized in that: The inner bottom of the screening barrel (1) is slidably connected to a storage box (12) for accommodating soybean meal dropped from the bottom opening of the inclined tube (41), and handles (13) are fixedly connected to both sides of the storage box (12).

8. The protein fiber raw material screening and separation device according to claim 1, characterized in that: The bottom of the screening barrel (1) is provided with a discharge port, the bottom of the screening barrel (1) is rotatably connected to a swing plate (14) for covering the discharge port, and the bottom of the swing plate (14) is fixedly connected to a bending frame (15).

9. The protein fiber raw material screening and separation device according to claim 2, characterized in that: One end of the rotating barrel (442) close to the middle tube (441) is connected to a sleeve (16), one end of the middle tube (441) movably extends into the interior of the sleeve (16), and bolts (17) are provided on both sides of the sleeve (16) at one end of which movably extends into the interior thereof.

10. The protein fiber raw material screening and separation device according to claim 1, characterized in that: The support frame (42) comprises a longitudinal column (421) sleeved on the outside of the inclined tube (41); the bottom of the longitudinal column (421) is fixedly connected to a bottom plate (422); the bottom plate (422) is slidably connected to the inner bottom of the screening barrel (1); and the top of the bottom plate (422) is provided with a plurality of bolts (423) with one end movably extending into the interior of the screening barrel (1).

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