High-gluten flour fine processing and multi-stage proportioning process

Abstract

The application provides a high-gluten flour fine processing and multi-stage proportioning process, and relates to the field of flour processing equipment.The high-gluten flour fine processing and multi-stage proportioning process comprises the following steps: the following steps are included: step one, removing impurities, sand or metal residues in the wheat by a vibrating screen, a stoning machine or a magnetic separator device; step two, detecting the protein content in the wheat; step three, grinding the wheat in step two into powder by a grinding device, and conveying the wheat flour with large particle size back to the grinding device for secondary grinding by an air flow conveying mechanism to obtain high-gluten fine flour; and step four, bagging the fine processed high-gluten flour proportioned in step three.In the application, the multi-stage proportioning of flour can be realized by one-time grinding, the fine high-gluten flour can be processed at one time, the number of devices is small, the cost is low, the efficiency is high, and the process is short.

Description

Technical Field

[0001] This invention relates to the field of flour processing technology, specifically to a process for fine processing and multi-stage blending of high-gluten flour. Background Technology

[0002] To allow different flours to have different protein contents for processing into different types of pasta products, people select wheat with different protein contents to process flour. If the flour protein content is insufficient, people will add wheat gluten to increase the protein content of the flour, which is what we commonly call high-gluten flour.

[0003] In the current production of high-gluten flour, manufacturers use multiple types of grinding equipment to perform multi-stage grinding of the flour in order to ensure the fineness of the flour, or they change to finer milling tools to process the flour, or they use multiple types of sieving machines to sift the flour to different finenesses, and then add an appropriate proportion of protein to the flour to achieve a certain gluten strength. This operation method uses a lot of equipment, requires downtime to change milling tools, and the multi-stage sieving and mixing process of flour is cumbersome, time-consuming, labor-intensive and costly.

[0004] In addition, many existing flour processing processes use separate sieving equipment, which is directly driven by motors and vibrating devices. This results in high noise, high energy consumption, short lifespan, and high wear between the machines. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a high-gluten flour fine processing and multi-stage proportioning process, which solves the problems of existing flour fine processing processes involving multiple pieces of equipment, the need to change different grinding molds, the need for multiple mixing and sieving processes for adding gluten, and the high noise, short lifespan, and rapid wear of the equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-gluten flour fine processing and multi-stage proportioning process, comprising the following steps:

[0007] Step 1: Pass the wheat through a vibrating screen, destoner, or magnetic separator to remove impurities, sand, or metal residues. Then wash the wheat and humidify it until the moisture content is between 14% and 16%.

[0008] Step 2: Detect the protein content in wheat to obtain the percentage of protein content in wheat;

[0009] Step 3: Grind the wheat from Step 2 into flour using a grinding equipment. After grinding, sieve out the wheat bran. The larger wheat flour particles are transported back to the grinding equipment for secondary grinding through an air conveyor. While grinding the wheat, introduce gluten powder into the grinding equipment according to the protein ratio of high-gluten refined flour and grind it together. After grinding, sieve through a 200-300 mesh sieve until all the high-gluten refined flour passes through the sieve to obtain high-gluten refined flour.

[0010] Step 4: Pack the finely processed high-gluten flour from Step 3 into bags;

[0011] The grinding equipment in step three includes a frame, a feed hopper at the top of the frame, an outer grinding wheel at the upper part of the frame, the inner side of the outer grinding wheel being conical and hollow with grinding wheel teeth on the inner wall, an inner grinding wheel for grinding wheat flour being fitted on the inner side of the outer grinding wheel, a grinding wheel adjustment component being provided on the outer grinding wheel, a sieving component for sieving wheat flour being provided at the lower part of the frame, a vibration mechanism being provided below the sieving component and at the lower part of the frame, and the outer grinding wheel being hollow inside.

[0012] The grinding wheel adjustment assembly includes multiple supports and grinding wheel blocks. Multiple supports are circumferentially distributed inside the outer grinding wheel and are parallel to the inner wall of the outer grinding wheel. Each support has a support arm on the side away from the conical wall of the outer grinding wheel. Multiple limiting grooves are formed on the upper part of the inner conical grinding surface of the outer grinding wheel in a vertical conical manner. Multiple grinding wheel blocks are slidably disposed within the limiting grooves. The grinding wheel blocks are circumferentially distributed on the side wall of the outer grinding wheel. A connecting rod is fixedly connected to the middle of the side of each grinding wheel block away from the other side. A square sliding rod is fixedly connected to the other end of each connecting rod. The outer side of each square sliding rod is slidably connected to… Each of the square sliding rods is connected to a sliding sleeve, and the outer sides of the sliding sleeves are fixedly connected to the brackets. The ends of the square sliding rods away from the connecting rods are fixedly connected to threaded rods. The outer sides of the threaded rods are threaded to worm gears. One side of the worm gears is meshed with a worm. The worm is installed at the end of the support arm away from the bracket. Adjacent worms are connected to flexible shafts. A first bevel gear is fixedly connected to one of the flexible shafts. The first bevel gear is rotatably connected to one of the support arms. The first bevel gear is meshed with a second bevel gear. The second bevel gear is fixedly connected to a first motor. The first motor is installed on one of the brackets.

[0013] The upper and lower sides of the limiting groove are provided with circular grooves, and the two ends of the mold block are provided with limiting posts, and the limiting posts are slidably disposed in the circular grooves of the limiting groove.

[0014] The sliding sleeve has symmetrically arranged rotating seats on the side near the worm gear, and the ends of the rotating seats away from the sliding sleeve are rotatably connected to one side of the worm gear.

[0015] Preferably, the screening assembly includes a screen and a base plate disposed below the screen. One side of the screen and the base plate are connected to each other in a transverse V-shape. A slider is provided on both the side of the screen and the base plate that are connected and the other side that is not connected. The sliders are slidably disposed in buffer grooves. The buffer grooves are disposed on both sides of the inner wall of the frame. The bottom and top ends of the sliders are connected to the inner wall of the buffer grooves by springs. A dust cover is provided on the side of the sliders that are close to each other, and the dust cover is disposed inside the buffer groove.

[0016] Preferably, the vibration mechanism includes a movable box disposed at the bottom of the frame, an electromagnet slidably disposed inside the movable box, an iron block disposed directly above the electromagnet and at the bottom of the base plate, a rocker arm rotatably connected to the middle of the bottom end of the electromagnet, the rocker arm passing through the bottom of the movable box and the bottom of the frame and rotatably connected to a circular plate, a connecting shaft fixedly connected to the circular plate, the connecting shaft being rotatably connected to the bottom wall of the frame via a mounting rod, a fourth bevel gear fixedly connected to the end of the connecting shaft away from the circular plate, the fourth bevel gear meshing with a third bevel gear, the third bevel gear being fixedly connected to the drive end of a second motor, and the second motor being mounted on the bottom wall of the frame via a mounting plate.

[0017] Preferably, a second pulley is connected to the top of the drive end of the second motor, a drive rod is fixedly connected to the middle of the bottom end of the inner mold, the bottom end of the drive rod passes through the frame and is fixedly connected to a first pulley, the first pulley and the second pulley are connected by a belt, a stabilizing sleeve is fitted on the lower outer periphery of the drive rod, the stabilizing sleeve is fixedly connected to the inner bottom wall of the frame, and a sliding sleeve is slidably fitted on the upper part of the stabilizing sleeve, the sliding sleeve being fixedly connected through the screen and the bottom plate.

[0018] Preferably, a return pipe is provided through the side wall of the frame and above the screen, the other end of the return pipe is provided through the lower side of the feed hopper, a proportioning pipe is connected to the return pipe, and an air conveying system is connected to the return pipe.

[0019] Preferably, a hemispherical drop cone is mounted on the top of the inner grinding mold.

[0020] Working Principle: During the fine processing of high-gluten flour, clean wheat with a certain moisture content from step one is poured into the feed hopper. Simultaneously, the corresponding proportion of gluten powder or protein powder is fed into the feed hopper through the proportioning pipe and return pipe. The wheat and gluten powder in the feed hopper enter between the inner and outer grinding mills. While the grinding mills are processing the high-gluten flour, the second motor operates. The second motor drives the first pulley to rotate via the second pulley and belt. The first pulley, through the drive rod, rotates the inner grinding mill. The wheat and gluten powder fall from the discharge cone between the inner and outer grinding mills and are crushed, achieving the milling of wheat to obtain flour and bran. After being crushed, the gluten powder can be fully mixed with the flour, eliminating the need for secondary sieving. The flour and bran then fall into the... On the sieve, fine flour is sieved to obtain refined flour. Incompletely ground wheat flour and bran are conveyed by airflow through the return pipe. Bran is output, and wheat flour is transported between the inner and outer grinding mills for repeated grinding. During wheat flour production, gluten powder or vital wheat gluten is introduced into the feed hopper through a proportioning pipe to achieve the proportions needed for fine processing. This ensures that the gluten content of the wheat flour is cyclically proportioned from the beginning, resulting in high-gluten flour characteristics. There is no need to separately proportion the gluten content, and the high-gluten flour is directly mixed without secondary mixing. When further fine grinding is required, the first motor drives the first bevel gear to rotate via the second bevel gear. The first bevel gear, through a flexible shaft, causes multiple worm gears to rotate simultaneously around the support arm. The worm gear drives the threaded rod to slide the square sliding rod within the sliding sleeve. The square sliding rod, via a connecting rod, moves the grinding block within a limiting groove, adjusting the distance between the grinding block and the inner grinding mold to regulate the grinding distance. At this point, wheat flour can be directly processed into fine powder. Afterward, it undergoes cyclic sieving and grinding by a screening component until all wheat flour is ground. This grinding equipment eliminates the need for multiple grinding mill models and avoids delays in flour processing due to grinding mold changes. Furthermore, by combining pre-detection of wheat protein content with the subsequent direct addition of wheat gluten, it eliminates the need for secondary mixing and sieving of wheat flour and wheat gluten. The equipment has low cost, requires minimal equipment, and features a simple process, eliminating the need for multiple mixing steps. The process of feeding and sieving eliminates the need for frequent mold changes, resulting in highly efficient high-gluten flour processing and proportioning in a single operation. During flour sieving, a second motor drives a third bevel gear, which in turn drives a fourth bevel gear via a connecting shaft to rotate a circular plate. This plate, in turn, causes a rocker arm to move within a movable box, periodically sliding an electromagnet. This electromagnet attracts an iron block on the base plate, causing the base plate to move up and down periodically. The base plate, via a slider and spring, slides up and down within a buffer groove, enabling the sieve to sieve the fine flour. This magnetic periodic attraction method, which eliminates direct mechanical connections, results in low noise during flour sieving. The absence of direct mechanical connections leads to less wear, longer lifespan, and lower energy consumption. The setup of sieving and grinding multiple times in one operation makes the equipment highly integrated and efficient.

[0021] This invention provides a process for refining high-gluten flour and a multi-stage proportioning method. It has the following beneficial effects:

[0022] In this invention, when processing high-gluten fine wheat flour, a first motor drives a first bevel gear to rotate via a second bevel gear. The first bevel gear, via a flexible shaft, causes multiple worm gears to rotate simultaneously around a support arm. The worm gears drive a worm wheel to rotate, and the worm wheel causes a threaded rod to slide a square sliding rod within a sliding sleeve. The square sliding rod, via a connecting rod, moves the grinding block within a limiting groove, adjusting the distance between the grinding block and the inner grinding wheel. This adjusts the grinding distance and length between the inner and outer grinding wheels, increasing the fineness of the grinding block. At this point, the wheat flour can be directly processed into fine powder, which is then sieved. The component-based circulating screening and grinding system, combined with a return pipe and a proportioning pipe, adjusts the protein ratio of wheat, enabling high-gluten fine flour to be obtained in a single grinding process and directly achieving multi-stage proportioning. This eliminates the need for separate mixing, multiple types of grinding equipment, and the delay in flour processing caused by changing grinding mills. Furthermore, by pre-testing the wheat protein content and directly adding gluten powder afterward, the system avoids the need for secondary mixing and screening of wheat flour and gluten powder. The equipment is low-cost, requires minimal equipment, and simplifies the flour proportioning process by eliminating the need for multi-stage screening. The single screening and mixing process saves time, labor, and costs.

[0023] In this invention, the second motor drives the fourth bevel gear via the third bevel gear, which in turn rotates the circular plate via the connecting shaft. The circular plate, in turn, drives the rocker arm to move the electromagnet periodically within the moving box. The electromagnet, due to its magnetism, attracts the iron block on the base plate, causing it to periodically move the base plate up and down. The base plate, via a slider and a spring, slides up and down within a buffer groove. This eliminates the need for direct mechanical connection when sieving fine flour. The combination of magnetic attraction and the sliding of the spring slider enables the sieve to sieve the fine flour. This method, which avoids direct mechanical connection, results in low noise during sieving. The absence of direct mechanical connection reduces wear and extends the lifespan of the equipment. The single-stage sieving setup allows for highly integrated and efficient use of the equipment. Attached Figure Description

[0024] Figure 1 This is the front view of the present invention;

[0025] Figure 2 This is a perspective view of the mold adjustment assembly of the present invention;

[0026] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 4 This is a top view of the connection of the flexible shaft of the present invention;

[0028] Figure 5 for Figure 1 Enlarged view of point B in the middle.

[0029] The components include: 1. Frame; 2. Feed hopper; 3. Outer abrasive; 4. Support; 5. Inner abrasive; 6. Screen; 7. First motor; 8. First bevel gear; 9. Discharge cone; 10. Proportioning pipe; 11. Return pipe; 12. Drive rod; 13. Stabilizing sleeve; 14. Sliding sleeve; 15. First pulley; 16. Belt; 17. Second motor; 18. Limiting post; 19. Abrasive block; 20. Connecting rod; 21. Square slide rod; 22. Sliding sleeve; 23. Worm gear; 24. Threaded rod; 25. Flexible shaft. 26. Worm gear; 27. Support arm; 28. Limiting groove; 29. ​​Rotating seat; 30. Second bevel gear; 31. Base plate; 32. Buffer groove; 33. Dust cover; 34. Slider; 35. Iron block; 36. Electromagnet; 37. Moving box; 38. Rocker arm; 39. Circular plate; 40. Mounting rod; 41. Second pulley; 42. Third bevel gear; 43. Fourth bevel gear; 44. Connecting shaft; 45. Mounting plate; 46. Grinding mold adjustment assembly; 47. Screening assembly; 48. Vibration mechanism. Detailed Implementation

[0030] 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.

[0031] Example:

[0032] like Figure 1-5 As shown, this embodiment of the invention provides a process for refining high-gluten flour and multi-stage proportioning, including the following steps:

[0033] Step 1: Pass the wheat through a vibrating screen, destoner, or magnetic separator to remove impurities, sand, or metal residues. Then wash the wheat and humidify it until the moisture content is between 14% and 16%. This process removes impurities, sand, and metal residues to improve the purity of the wheat flour and to protect the lifespan of the grinding tools.

[0034] Step 2: Detect the protein content in wheat to obtain the protein content percentage of wheat. This is to ensure that wheat has a specific protein content so that it is more suitable for making corresponding food products.

[0035] Step 3: Grind the wheat from Step 2 into flour using a grinding equipment. After grinding, sieve out the wheat bran. The larger wheat flour particles are transported back to the grinding equipment for secondary grinding via an air conveyor. While grinding the wheat, introduce gluten powder into the grinding equipment according to the protein ratio of high-gluten refined flour and grind it together. After grinding, sieve through a 200-300 mesh sieve until all the high-gluten refined flour passes through the sieve to obtain high-gluten refined flour. Here, only the bran needs to be sieved out, which retains all the nutrients of wheat while also accurately measuring the protein content of wheat.

[0036] Step 4: Pack the finely processed high-gluten flour from Step 3 into bags;

[0037] The grinding equipment in step three includes a frame 1. A feed hopper 2 is located at the top of the frame 1. An outer grinding wheel 3 is located in the upper part of the frame 1. The inner side of the outer grinding wheel 3 is conical and hollow, with grinding wheel teeth on its inner wall. The density of the grinding wheel teeth on the inner side of the outer grinding wheel 3 is less than the density of the grinding block 19. This is because when the grinding block 19 is adjusted to the outside of the outer grinding wheel 3, it is to increase the fineness of the wheat grinding. Therefore, the density is less than, but the density can also be the same. Because the grinding block 19 and the inner teeth of the outer grinding wheel 3 are in close contact when grinding wheat, the distance between the wheat grinding particles is increased, thus improving the fineness of the wheat grinding. An inner grinding wheel 5 for grinding wheat is provided on the inner side of the outer grinding wheel 3. The inner grinding wheel 5 is combined with the grinding block 19 or the outer grinding wheel 3 to achieve wheat grinding. The grinding block 19 is parallel to the inner teeth of the outer grinding wheel 3 and parallel to the grinding wheel teeth of the inner grinding wheel 5, facilitating wheat grinding. The outer grinding wheel 3 is equipped with a grinding wheel adjustment mechanism. Component 46, a screening component 47 for screening wheat flour is set in the lower part of the frame 1, and a vibration mechanism 48 is set below the screening component 47 and in the lower part of the frame 1. The outer grinding wheel 3 is hollow inside to facilitate the installation of grinding wheel block 19. The clean wheat with a certain moisture in step one is poured into the grinding equipment through the feed hopper 2. The second motor 17 works and drives the first pulley 15 to rotate through the second pulley 41 and belt 16. The first pulley 15 drives the inner grinding wheel 5 to rotate through the drive rod 12. The wheat falls from the discharge cone 9 between the inner grinding wheel 5 and the outer grinding wheel 3 and is crushed to achieve the milling of wheat flour and wheat bran. The flour and wheat bran fall onto the screen 6. The screen 6 screens the fine flour to obtain refined flour. The wheat flour and bran that are not ground sufficiently are sent through the airflow of the return pipe 11. The bran is output and the wheat flour is transported between the inner grinding wheel 5 and the outer grinding wheel 3 for repeated grinding.

[0038] The grinding wheel adjustment assembly 46 includes multiple supports 4 and grinding wheel blocks 19. Multiple supports 4 are circumferentially distributed inside the outer grinding wheel 3, and all supports 4 are parallel to the inner wall of the outer grinding wheel 3. Support arms 27 are provided on the side of each support 4 away from the conical wall of the outer grinding wheel 3. Multiple limiting grooves 28 are formed on the upper part of the inner conical grinding surface of the outer grinding wheel 3 in a vertical conical manner. The limiting grooves 28 and the grinding wheel blocks 19 are in close sliding contact. The grinding wheel blocks 19 are parallel to the side wall of the outer grinding wheel 3, so the distance between the grinding wheel blocks 19 and the inner grinding wheel 5 is large. During this process, wheat flour will not enter the inner cavity of the outer abrasive mold 3. Only after the abrasive block 19 is pushed by the square slide rod 21 will it approach the inner abrasive mold 5 in the limiting groove 28 to perform fine grinding of the wheat. Here, the fine grinding of wheat by the abrasive block 19 is mainly achieved by increasing the area between it and the inner abrasive mold 5 and increasing the grinding distance. Multiple abrasive blocks 19 are slidably arranged in the limiting groove 28. The abrasive blocks 19 are arranged in a conical circumferential distribution on the side wall of the outer abrasive mold 3. A connecting rod is fixedly connected to the middle of the abrasive block 19 on the side furthest from each other. 20. A square slide rod 21 is fixedly connected to the other end of each connecting rod 20. A sliding sleeve 22 is slidably connected to the outer side of each square slide rod 21. The outer side of each sliding sleeve 22 is fixedly connected to the bracket 4. A threaded rod 24 is fixedly connected to the end of each square slide rod 21 away from the connecting rod 20. A worm gear 23 is threadedly connected to the outer side of the threaded rod 24. A worm 26 is meshed on one side of the worm gear 23. The worm 26 is installed at the end of the support arm 27 away from the bracket 4. Each adjacent worm 26 is connected to a flexible shaft 25. The flexible shaft 25 can non- Axially driven worm gear 26, with flexible shaft 25 acting as a circle fitted inside the inner cavity of outer grinding mold 3, drives grinding blocks 19 circumferentially distributed within the limiting groove 28 of outer grinding mold 3, causing them to synchronously move closer to or away from inner grinding mold 5. A first bevel gear 8 is fixedly connected to one end of flexible shaft 25, and the first bevel gear 8 is rotatably connected to one of the support arms 27. The first bevel gear 8 is meshed with a second bevel gear 30, and the second bevel gear 30 is fixedly connected to a first motor 7, which is mounted on one of the brackets 4. Circular grooves are provided on both the upper and lower sides of the limiting groove 28, and limiting posts 18 are provided at both ends of the grinding blocks 19, with the limiting posts 18 slidably positioned within the circular grooves of the limiting groove 28.A rotating seat 29 is symmetrically arranged on the side of the sliding sleeve 22 near the worm gear 23. The end of the rotating seat 29 away from the sliding sleeve 22 is rotatably connected to one side of the worm gear 23. During wheat flour production, gluten powder or wheat gluten powder is fed into the feed hopper 2 through the proportioning pipe 10 to achieve the proportioning of finely processed wheat flour. This allows the gluten in the wheat flour to be cyclically proportioned from the beginning, resulting in wheat flour with the characteristics of high-gluten flour, without the need for separate proportioning of gluten content. When the wheat flour needs to be ground more finely, the first motor 7 drives the first bevel gear 8 to rotate through the second bevel gear 30. The first bevel gear 8 causes multiple worms 26 to rotate simultaneously around the support arm 27 through the flexible shaft 25. The worms 26 drive the worm gear 23 to rotate, and the worm gear 23 enables the threaded rod 24 to drive the square sliding rod 21 within the sliding sleeve 22. The square sliding rod 21 can move the grinding block 19 within the limiting groove 28 via the connecting rod 20, adjusting the distance between the grinding block 19 and the inner grinding mold 5 to achieve grinding mold adjustment. At this time, wheat flour can be directly processed into fine flour, and then circulated through the screening component 47 for screening and grinding until all wheat flour is ground. This grinding equipment does not require the use of multiple types of grinding equipment, and does not delay the flour processing progress by changing grinding molds. At the same time, combined with the method of pre-detecting wheat protein content and directly adding gluten powder, it does not require secondary mixing and screening of wheat flour and gluten powder. The equipment has low cost, small equipment usage, simple process, no need for multiple mixing and screening, no need for multiple grinding mold changes, and is very efficient, achieving fine processing and proportioning of high-gluten flour in one go.

[0039] The screening assembly 47 includes a screen 6 and a base plate 31 disposed below the screen 6. One side of the screen 6 and the base plate 31 are connected to each other in a transverse V-shape. A slider 34 is provided on both the connected side of the screen 6 and the unconnected side. The sliders 34 are slidably disposed within buffer grooves 32, which are disposed on both sides of the inner wall of the frame 1. The bottom and top ends of the sliders 34 are connected to the inner wall of the buffer grooves 32 by springs. A dust cover 33 is provided on the side of the sliders 34 that are close to each other, and the dust cover 33 is disposed within the buffer groove 32. On the side, the dust cover 33 prevents flour from adhering to the surface and thus prevents it from reciprocating. The circular plate 39 slides periodically within the moving box 37 via the rocker arm 38, adsorbing the iron block 35 on the bottom plate 31, causing it to periodically move the bottom plate 31 up and down. The bottom plate 31 slides up and down within the buffer groove 32 via the slider 34 and spring, thus achieving the sieving of fine flour. This method of not directly connecting mechanical equipment results in low noise during sieving. The absence of direct connection between the machines reduces wear and extends the lifespan. The single-stage sieving setup makes the equipment highly integrated and efficient.

[0040] The vibration mechanism 48 includes a movable box 37 located at the bottom of the frame 1. An electromagnet 36 is slidably disposed inside the movable box 37. An iron block 35 is disposed directly above the electromagnet 36 and at the bottom of the base plate 31. A rocker arm 38 is rotatably connected to the middle of the bottom end of the electromagnet 36. The rocker arm 38 passes through the bottom of the movable box 37 and the bottom of the frame 1 and is rotatably connected to a circular plate 39. A connecting shaft 44 is fixedly connected to the circular plate 39. The connecting shaft 44 is rotatably connected to the bottom wall of the frame 1 via a mounting rod 40. A fourth bevel gear 43 is fixedly connected to the end of the connecting shaft 44 away from the circular plate 39. The fourth bevel gear 43 meshes with a third bevel gear 42. The third bevel gear 42 is fixedly connected to the drive end of the second motor 17. The second motor 17 is mounted on the bottom wall of the frame 1 via a mounting plate 45. The top of the drive end of the second motor 17 is connected to a second pulley 41. A drive rod 12 is fixedly connected to the middle of the bottom end of the inner mold 5. The bottom end of the drive rod 12 passes through the frame 1 and is fixedly connected to a first pulley 15. The first pulley 15 and the second pulley 41 are connected by a belt 16. A stabilizing sleeve 13 is fitted around the lower outer periphery of the drive rod 12. The stabilizing sleeve 13 is fixedly connected to the inner bottom wall of the frame 1. A sliding sleeve 14 is slidably fitted onto the upper part of the stabilizing sleeve 13. The sliding sleeve 14 is fixedly connected through the sieve 6 and the bottom plate 31. When sieving flour, the second motor 17 drives the first pulley 15 through the second pulley 16. The third bevel gear 42 drives the fourth bevel gear 43 to rotate the circular plate 39 via the connecting shaft 44. The circular plate 39 periodically slides within the moving box 37 via the rocker arm 38, attracting the iron block 35 on the bottom plate 31, causing it to periodically move the bottom plate 31 up and down. The bottom plate 31 slides up and down within the buffer groove 32 via the slider 34 and spring, thus achieving the sieving of fine flour. This method of not directly connecting mechanical equipment results in low noise during sieving. The absence of direct connection between the machines reduces wear and extends the lifespan. The single-stage sieving setup makes the equipment highly integrated and efficient.

[0041] A return pipe 11 is inserted through the side wall of the frame 1 and above the screen 6. The other end of the return pipe 11 is inserted through the lower side of the feed hopper 2. A proportioning pipe 10 is connected to the return pipe 11. An air conveying system is connected to the return pipe 11. The air conveying system can separate the wheat bran separately through air separation, and at the same time can convey the wheat flour that has not reached the fineness to the frame 1 for secondary grinding.

[0042] The top of the inner grinding wheel 5 is equipped with a hemispherical drop cone 9, which facilitates the material to fall and grind.

[0043] 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 high-gluten flour fine processing and multi-stage proportioning process, characterized in that: Includes the following steps: Step 1: Pass the wheat through a vibrating screen, destoner, or magnetic separator to remove impurities, sand, or metal residues. Then wash the wheat and humidify it until the moisture content is between 14% and 16%. Step 2: Detect the protein content in wheat to obtain the percentage of protein content in wheat; Step 3: Grind the wheat from Step 2 into flour using a grinding equipment. After grinding, sieve out the wheat bran. The larger wheat flour particles are transported back to the grinding equipment for secondary grinding through an air conveyor. While grinding the wheat, introduce gluten powder into the grinding equipment according to the protein ratio of high-gluten refined flour and grind it together. After grinding, sieve through a 200-300 mesh sieve until all the high-gluten refined flour passes through the sieve to obtain high-gluten refined flour. Step 4: Pack the finely processed high-gluten flour from Step 3 into bags; The grinding equipment in step three includes a frame (1), a feed hopper (2) is provided on the top of the frame (1), an outer grinding wheel (3) is provided in the upper part of the frame (1), the inner side of the outer grinding wheel (3) is conical and hollow and the inner wall is provided with grinding wheel teeth, an inner grinding wheel (5) for grinding wheat is provided in the inner side of the outer grinding wheel (3), a grinding wheel adjustment component (46) is provided on the outer grinding wheel (3), a screening component (47) for screening wheat flour is provided in the lower part of the frame (1), a vibration mechanism (48) is provided below the screening component (47) and in the lower part of the frame (1), and the outer grinding wheel (3) is hollow inside; The grinding tool adjustment assembly (46) includes multiple supports (4) and grinding tool blocks (19). The supports (4) are multiple and circumferentially distributed inside the outer grinding tool (3), and the supports (4) are parallel to the inner wall of the outer grinding tool (3). Each support (4) is provided with a support arm (27) on the side away from the conical wall of the outer grinding tool (3). Multiple limiting grooves (28) are opened on the upper part of the inner conical grinding surface of the outer grinding tool (3) in a vertical conical manner. Multiple grinding tool blocks (19) are slidably disposed in the limiting grooves (28). Each grinding tool block (19) is disposed on the side wall of the outer grinding tool (3) in a conical circumferential distribution. A connecting rod (20) is fixedly connected to the middle part of the side away from the grinding tool block (19). A square slide rod (21) is fixedly connected to the other end of each connecting rod (20). A sliding sleeve (22) is slidably connected to the outer side of each square slide rod (21). The outer sides of each sliding sleeve (22) are fixedly connected to the bracket (4) one by one. The square sliding rod (21) is fixedly connected to a threaded rod (24) at the end away from the connecting rod (20). The outer side of the threaded rod (24) is threadedly connected to a worm wheel (23). A worm (26) is meshed on one side of the worm wheel (23). The worm (26) is installed at the end of the support arm (27) away from the bracket (4). Each adjacent worm (26) is connected to a flexible shaft (25). A first bevel gear (8) is fixedly connected to one of the flexible shafts (25). The first bevel gear (8) is rotatably connected to one of the support arms (27). The first bevel gear (8) is meshed with a second bevel gear (30). The second bevel gear (30) is fixedly connected to a first motor (7). The first motor (7) is installed on one of the brackets (4). The upper and lower sides of the limiting groove (28) are provided with circular grooves, and the two ends of the grinding block (19) are provided with limiting posts (18), and the limiting posts (18) are slidably disposed in the circular groove of the limiting groove (28). The sliding sleeve (22) is symmetrically provided with a rotating seat (29) on the side near the worm gear (23), and the end of the rotating seat (29) away from the sliding sleeve (22) is rotatably connected to the side of the worm gear (23).

2. The high-gluten flour fine processing and multi-stage proportioning process according to claim 1, characterized in that: The screening assembly (47) includes a screen (6) and a base plate (31) disposed below the screen (6). One side of the screen (6) and the base plate (31) are connected to each other in a transverse V-shape. A slider (34) is provided on both the side where the screen (6) and the base plate (31) are connected and the other side where they are not connected. The sliders (34) are all slidably disposed in the buffer grooves (32). The buffer grooves (32) are all disposed on both sides of the inner wall of the frame (1). The bottom and top ends of the sliders (34) are connected to the inner wall of the buffer grooves (32) by springs. A dust cover (33) is provided on the side of the sliders (34) that are close to each other, and the dust cover (33) is disposed on the inner side of the buffer grooves (32).

3. The high-gluten flour fine processing and multi-stage proportioning process according to claim 2, characterized in that: The vibration mechanism (48) includes a movable box (37) located at the bottom of the frame (1). An electromagnet (36) is slidably disposed inside the movable box (37). An iron block (35) is disposed directly above the electromagnet (36) and at the bottom of the base plate (31). A rocker arm (38) is rotatably connected to the middle of the bottom end of the electromagnet (36). The rocker arm (38) passes through the bottom of the movable box (37) and the bottom of the frame (1) and is rotatably connected to a circular plate (39). A connecting shaft (44) is fixedly connected to the bottom wall of the frame (1) via a mounting rod (40). A fourth bevel gear (43) is fixedly connected to one end of the connecting shaft (44) away from the circular plate (39). The fourth bevel gear (43) meshes with a third bevel gear (42). The third bevel gear (42) is fixedly connected to the drive end of a second motor (17). The second motor (17) is mounted on the bottom wall of the frame (1) via a mounting plate (45).

4. The high-gluten flour fine processing and multi-stage proportioning process according to claim 3, characterized in that: The top of the drive end of the second motor (17) is connected to a second pulley (41). The bottom middle of the inner mold (5) is fixedly connected to a drive rod (12). The bottom end of the drive rod (12) passes through the frame (1) and is fixedly connected to a first pulley (15). The first pulley (15) and the second pulley (41) are connected by a belt (16). The lower outer periphery of the drive rod (12) is fitted with a stabilizing sleeve (13). The stabilizing sleeve (13) is fixedly connected to the inner bottom wall of the frame (1). The upper part of the stabilizing sleeve (13) is fitted with a sliding sleeve (14). The sliding sleeve (14) is fixedly connected to the screen (6) and the bottom plate (31).

5. The high-gluten flour fine processing and multi-stage proportioning process according to claim 4, characterized in that: A return pipe (11) is passed through the side wall of the frame (1) and above the screen (6). The other end of the return pipe (11) passes through the lower side of the feed hopper (2). A proportioning pipe (10) is connected to the return pipe (11). An airflow conveying system is connected to the return pipe (11).

6. The high-gluten flour fine processing and multi-stage proportioning process according to claim 4, characterized in that: The top of the inner abrasive (5) is fitted with a hemispherical drop cone (9).

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