A fluid dynamic drying tower for processing fermented meal products

Abstract

This invention discloses a fluid dynamic drying tower for processing fermented meal products, comprising a drying tower body, a stirring unit at the top of the drying tower body, a first screen inside the top side of the drying tower body, a stirring assembly above the first screen, and a drive unit at the top of the drying tower body for providing power to the stirring assembly. The stirring assembly is used to stir the material on the first screen. When the material enters the first screen inside the drying tower body, it is screened by the first screen. The drive unit drives the stirring assembly to rotate, so that the stirring assembly stirs the material remaining on the screen, preventing the material from clumping during the drying process, which would affect the drying effect.

Description

Technical Field

[0001] This invention relates to the field of material drying technology, specifically a fluid dynamic drying tower for processing fermented meal products. Background Technology

[0002] As is widely known, fermented soybean meal, also known as bioactive peptides, bio-soybean meal, bioactive small peptides, and soybean peptides, contains abundant beneficial bacteria after microbial fermentation, while simultaneously degrading anti-nutritional factors. It possesses a mild to strong mellow aroma, exhibiting good palatability and appeal to animals. Probiotics reach the intestines, maintaining intestinal health through the synthesis of antibacterial substances and interactions with other bacteria and the host. Organic acids such as lactic acid and acetic acid significantly lower the intestinal pH, thereby inhibiting the growth of pathogens, making it a preferred direction for high-quality development in the feed industry towards low-antibiotic and antibiotic-free practices. During the fermentation process, the raw materials of fermented soybean meal require drying towers. Drying towers are devices primarily used for moisture and air removal, and are commonly used in industrial production. Their main function is to evaporate and remove moisture from materials by heating gas. Drying towers are widely used in chemical, petrochemical, food, and pharmaceutical industries. The working principle of a drying tower is mainly through the exchange of high-temperature dry air with wet materials, causing moisture to evaporate from the materials. Generally, wet materials in a drying tower are conveyed into the drying chamber via a conveyor belt or airflow. Hot air circulates within the chamber, transferring heat to the materials through heat exchange. Moisture then evaporates from the materials, while the air is carried away. Drying towers make full use of heat energy, ensuring even heating of the soybean meal. The resulting soybean meal has a good color, minimal nutrient loss, and improves the production quality of fermented soybean meal products.

[0003] For example, the active drying tower system disclosed in announcement number CN101672568A on March 17, 2010, relates to an active drying tower system and belongs to the field of material drying technology. The main feature of this invention is that several layers of perforated drying trays are fixed sequentially and equidistantly within the tower body. Each drying tray has staggered discharge ports, and each discharge port has a movable gate mechanism. A stirring shaft passes through the center of each drying tray from the bottom of the tower body. A motor drive device is engaged at the bottom end of the stirring shaft at the bottom of the tower body, corresponding to each drying tray. The invention comprises a stirring device fixed on the stirring shaft of the drying trays, circulating air inlets and outlets on the upper and lower sides of the tower body with alternating drying trays from top to bottom, each circulating air inlet and outlet connected to a circulating air duct, a circulating drying air device at 78-82°C connected in the circulating air duct, a drying cold air device connected from the bottom of the lowest drying tray of the tower body, a feed inlet at the top of the tower body and a discharge outlet at the bottom of the tower body; this invention is beneficial for reducing power consumption and steam consumption, adaptable to large-scale production, suitable for drying materials with high heat sensitivity, and has strong practicality.

[0004] The shortcoming of the existing technology is that when the meal material enters the drying tower for drying, the presence of a certain amount of moisture or, more accurately, a high humidity in the meal material causes it to clump together after entering the drying tower, which affects the drying effect and prevents the meal material from reaching the required degree of dryness. Summary of the Invention

[0005] The purpose of this invention is to provide a fluid dynamic drying tower for processing fermented meal products, thereby solving the technical problems in related technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fluid dynamic drying tower for processing fermented meal products, comprising a drying tower body, a stirring unit provided at the top of the drying tower body, a first screen provided on the top side inside the drying tower body, a stirring assembly provided above the first screen, and a drive unit provided at the top of the drying tower body for providing power to the stirring assembly, the stirring assembly being used to stir the material on the first screen.

[0007] As described above, the stirring assembly includes a drive shaft and a U-shaped frame. The output end of the drive component passes through the top of the drying tower body and is connected to the drive shaft. Two U-shaped frames are symmetrically arranged on the drive shaft. Each of the two U-shaped frames is rotatably mounted with a stirring roller via a stirring shaft. Multiple stirring blades are evenly installed on the outer wall of the two stirring rollers along their circumferential direction. The ends of the two stirring shafts near the inner wall of the drying tower body pass through their corresponding U-shaped frames and are each connected to a stirring gear. An annular tooth is provided on the inner wall of the drying tower body, and the annular tooth meshes with the two stirring gears.

[0008] As described above, two mounting brackets are symmetrically installed on the stirring shaft, and a smoothing roller is rotatably mounted on each of the two mounting brackets.

[0009] As described above, the tops of the two mounting brackets are arc-shaped structures, and each of the top ends of the two mounting brackets has an arc-shaped groove. A scraper is mounted in the middle of each of the two mounting brackets in a rotatable manner through a positioning shaft. The centers of the two positioning shafts coincide with the centers of their corresponding arc-shaped grooves. The two scrapers abut against their corresponding smoothing rollers. The top ends of the two scrapers are slidably mounted in their corresponding arc-shaped grooves. The side walls of the two scrapers and the inner walls of their corresponding arc-shaped grooves are connected by a first elastic element.

[0010] As mentioned above, a feed pipe is provided on one side of the top of the drying tower body, and an air outlet pipe is provided on the other side of the top of the drying tower body.

[0011] As described above, the inner wall of the drying tower body is provided with a first annular groove, a second annular groove, a third annular groove and a fourth annular groove from top to bottom. A second screen, a third screen, a fourth screen and a fifth screen are slidably installed in the first annular groove, the second annular groove, the third annular groove and the fourth annular groove, respectively. The second screen and the inner wall of the first annular groove, the third screen and the inner wall of the second annular groove, the fourth screen and the inner wall of the third annular groove, and the fifth screen and the inner wall of the fourth annular groove are all connected by second elastic members that are uniformly arranged in their circumferential direction.

[0012] As mentioned above, a driven shaft is rotatably provided at the top of the fifth screen. The top of the driven shaft passes through the fourth screen, the third screen, the second screen, and the first screen in sequence and is connected to the bottom of the transmission shaft. Multiple anti-blocking plates are provided on the outer wall of the driven shaft along its circumferential direction above the second screen, the third screen, the fourth screen, and the fifth screen, respectively.

[0013] As mentioned above, a first hot air duct is provided on the side wall of the drying tower body between the second and third screens.

[0014] As mentioned above, a second hot air duct is provided on the side wall of the drying tower body between the third and fourth screens.

[0015] As mentioned above, a cold air duct is provided on the side wall of the drying tower body between the fourth and fifth screens.

[0016] The beneficial effects of the present invention are as follows: when the meal material enters the first screen in the drying tower body, the meal material is screened through the first screen. The stirring component is driven by the driving component to rotate, so that the stirring component stirs the meal material remaining on the screen, preventing the material from clumping during the drying process, thereby affecting the drying effect of the material. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 For the present invention Figure 1 A schematic diagram of the cross-sectional structure;

[0020] Figure 3 For the present invention Figure 2A partial enlarged cross-sectional structural diagram at point K;

[0021] Figure 4 This is a partial three-dimensional structural schematic diagram of the stirring unit of the present invention;

[0022] Figure 5 For the present invention Figure 4 A schematic diagram of the cross-sectional structure;

[0023] Figure 6 This is a partial cross-sectional structural diagram of the scraper and mounting bracket of the present invention;

[0024] Figure 7 This is a three-dimensional structural diagram of the annular tooth of the present invention;

[0025] Figure 8 This is a partial three-dimensional structural schematic diagram of another embodiment of the present invention;

[0026] Figure 9 For the present invention Figure 8 A schematic diagram of the cross-sectional structure;

[0027] Figure 10 This is a three-dimensional structural diagram of the inclined groove of the present invention;

[0028] Figure 11 This is a partial three-dimensional structural schematic diagram of the chain plate of the present invention from a first perspective;

[0029] Figure 12 This is a partial three-dimensional structural schematic diagram of the chain plate of the present invention from a second perspective;

[0030] Figure 13 This is a partial three-dimensional structural diagram of the chain plate of the present invention in motion state;

[0031] Figure 14 This is a partial three-dimensional structural diagram of the flipping groove and chain plate of the present invention;

[0032] Figure 15 This is a partial three-dimensional structural diagram of the inverting groove of the present invention;

[0033] Figure 16 For the present invention Figure 15 A schematic diagram of the cross-sectional structure;

[0034] Figure 17 This is a partial cross-sectional structural diagram of the movement state of the chain plate in the tilting groove of the present invention;

[0035] Figure 18 This is a schematic diagram of the movement path of the pin on the top plate of the chain plate of the present invention within the flip groove.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Drying tower body; 2. Drive component; 3. First screen; 4. Transmission shaft; 5. U-shaped frame; 6. Stirring shaft; 7. Stirring roller; 8. Stirring blade; 9. Stirring gear; 10. Ring gear; 11. Mounting frame; 12. Smoothing roller; 13. Arc groove; 14. Positioning shaft; 15. Scraper; 16. First elastic element; 17. First annular groove; 18. Second annular groove; 19. Third annular groove; 20. Fourth annular groove; 21. Second screen; 22. Third screen; 23. Fourth screen; 24. Fifth screen; 25. Second elastic element; 26. Driven shaft; 27. Anti-blocking plate; 28. First hot air duct; 29. ​​Second hot air duct; 30. Cold air duct; 31. Arc-shaped through groove; 32. Arc-shaped groove; 33. Arc-shaped partition; 34. Third elastic element; 35. Arc-shaped sliding groove; 36. Arc-shaped baffle; 37. Straight plate; 38. Return plate; 39. Fourth elastic element; 40. Square rod; 41. First sealing plate; 42. Second sealing plate; 43. Third sealing plate; 44. Chain plate; 45. Pin shaft; 46. Inclined groove; 47. Flat plate; 48. Tilting groove; 481. Arc-shaped groove; 482. Outlet groove; 49. Flip plate. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solution of the present invention, the following will be described in conjunction with the appendix. Figure 1 To be continued Figure 18 The present invention will now be described in further detail.

[0039] One embodiment of the present invention relates to a fluid dynamic drying tower for processing fermented meal products, comprising a drying tower body 1, a stirring unit provided at the top of the drying tower body 1, a first screen 3 provided on the top side inside the drying tower body 1, a stirring assembly provided above the first screen 3, and a drive component 2 provided at the top of the drying tower body 1 for providing power to the stirring assembly. The stirring assembly is used to stir the material on the first screen 3.

[0040] Specifically, during the fermentation process of meal fermentation products, excessively low moisture content hinders fermentation, while excessively high moisture content hinders drying. Therefore, the meal raw material (i.e., the material itself) needs to be dried using the drying tower body 1. The dried material is then further processed to obtain the finished meal fermentation product. The drying tower body 1 is a device primarily used for moisture and air removal. The outer shell of the drying tower body 1 is mostly a hollow cylindrical structure, with the top and bottom hollow cylinders having roughly the same diameter. Inside the drying tower body 1, cold air and hot air are sequentially conveyed from bottom to top. The hot air is used for drying the material, and the cold air is used for cooling it. A feed pipe is located on one side of the top of the drying tower body 1, used to transport the material to the drying tower. Inside the drying tower body 1, an air outlet pipe is provided on the other side of the top of the drying tower body 1. The air outlet pipe is used to recover and reuse the hot and cold air inside the drying tower body 1. This is common knowledge in the field and will not be elaborated. The stirring assembly includes a drive shaft and a U-shaped frame. The output end of the drive component 2 passes through the top of the drying tower body 1 and is connected to the drive shaft 4. Two U-shaped frames 5 are symmetrically arranged on the drive shaft 4. Each of the two U-shaped frames 5 is rotatably mounted with a stirring roller 7 via a stirring shaft 6. Multiple stirring blades 8 are evenly installed on the outer wall of the two stirring rollers 7 along their circumferential direction. The first screen 3 is set on the top side inside the drying tower body 1. The first screen 3 is used for screening and holding materials. Since the materials need to be screened and held, The first screen 3 is designed as an upright conical structure, allowing the material to roll from its top to its bottom on the screen 3, facilitating screening. During this rolling process, the material is also partially broken up, preventing clumping due to high moisture content. Correspondingly, the drive shaft 4 is designed as a frustum-shaped structure, with the two U-shaped frames 5 on it also inclined. This allows the stirring rollers 7 and stirring blades 8 on the two U-shaped frames 5 to be parallel to and in contact with the inclined generatrix of the first screen 3, ensuring uniform stirring of the material. When the material enters the drying tower body 1 through the feed pipe, it falls onto the first screen 3, where it is screened. In the first screen 3, smaller materials fall off the screen, while larger or clump-like materials remain on the screen. When material remains on the first screen 3, the drive unit 2 (preferably a motor, a device that reverses direction) is activated, causing the transmission shaft 4 to rotate. The transmission shaft 4 then rotates the U-shaped frame 5, which in turn rotates the stirring roller 7 and stirring blades 8 via the stirring shaft 6. This causes the stirring blades 8 to stir the material remaining on the first screen 3, resulting in the material being compressed by the stirring rollers 7 and stirring blades 8. This process breaks up larger or clump-like materials, allowing them to fall off the first screen 3, thus achieving effective stirring and breaking up of the material.This allows the material to be dried and increases the drying area, thereby achieving the desired drying effect. However, a shortcoming of existing technologies is that when the material enters the drying tower, the presence of moisture or high humidity can cause clumping, affecting the drying effect and preventing the material from reaching the required dryness level. In this embodiment, after the material enters the first screen 3 inside the drying tower body 1, it is screened by the first screen 3. The driving component 2 drives the stirring assembly to rotate, causing the stirring assembly to agitate the material remaining on the screen, preventing clumping during drying and thus ensuring a better drying effect.

[0041] Furthermore, each of the two stirring shafts 6 has a corresponding U-shaped frame 5 extending through one end near the inner wall of the drying tower body 1 and is connected to a stirring gear 9. A ring tooth 10 is provided on the inner wall of the drying tower body 1, and the ring tooth 10 meshes with the two stirring gears 9. Specifically, when the driving component 2 drives the U-shaped frame 5 to rotate through the transmission shaft 4, and the U-shaped frame 5 drives the stirring roller 7 and stirring blade 8 to rotate, the U-shaped frame 5 drives the stirring shaft 6 to rotate, so that the stirring shaft 6 drives the stirring gear 9 to rotate along the trajectory of the ring tooth 10. Since the stirring gear 9 and the ring tooth 10 mesh with each other, while the U-shaped frame 5 drives the stirring shaft 6 to rotate, the stirring shaft 6 rotates under the drive of the stirring gear 9. The stirring shaft 6 drives the stirring roller 7 and stirring blade 8 to rotate, which improves the stirring effect of the stirring roller 7 and stirring blade 8 on the material, thereby improving the drying effect of the material. When the stirring roller 7 and stirring blade 8 rotate, they can throw off the material remaining on the stirring roller 7 and stirring blade 8, preventing the material from remaining on the stirring roller 7 and stirring blade 8.

[0042] Furthermore, two mounting brackets 11 are symmetrically mounted on the stirring shaft 6, and a smoothing roller 12 is rotatably mounted on each of the two mounting brackets 11. The top of each of the two mounting brackets 11 has an arc-shaped structure, and an arc-shaped groove 13 is opened at the top of each of the two mounting brackets 11. A scraper 15 is mounted in the middle of each of the two mounting brackets 11 in a rotatable manner through a positioning shaft 14. The center of the two positioning shafts 14 coincides with the center of the corresponding arc-shaped groove 13. The two scrapers 15 abut against their corresponding smoothing rollers 12. The tops of the two scrapers 15 are slidably mounted in their corresponding arc-shaped grooves 13. The side walls of the two scrapers 15 and the inner walls of their corresponding arc-shaped grooves 13 are connected by a first elastic member 16.

[0043] Specifically, since the first screen 3 has an upright conical structure and the drive shaft 4 has a frustum-shaped structure, the two mounting brackets 11 on the drive shaft 4 are also inclined, so that the smoothing rollers 12 and scrapers 15 on the two mounting brackets 11 can be parallel to and in contact with the inclined generatrix of the first screen 3. When the drive unit 2 drives the drive shaft 4 to rotate, the drive shaft 4 drives the mounting brackets 11 to rotate, and the mounting brackets 11 drive the smoothing rollers 12 to rotate, so that the smoothing rollers 12 squeeze and smooth the material remaining on the first screen 3, so that the material with a large volume or agglomerated on the first screen 3 is squeezed into a smaller volume by the smoothing rollers 12, so that the material can fall smoothly from the first screen 3 into the drying tower body 1 for drying. When the smoothing rollers 12 squeeze and smooth the material, some material may adhere to the smoothing rollers 12. During the rotation of the smoothing rollers 12, due to the interaction between the scrapers 15 and the smoothing rollers 12... The scraper 15 abuts against each other, allowing it to scrape away any residual material on the smoothing roller 12, ensuring no material remains on the smoothing roller 12. When the scraper 15 scrapes away the material on the smoothing roller 12, the smoothing roller 12 may drive the scraper 15 to rotate around the positioning shaft 14. During the rotation, the scraper 15 compresses and stretches the first elastic element 16 (the first elastic element 16 is a retractable and resetting element, preferably a spring), causing the scraper 15 to oscillate back and forth around the positioning shaft 14. This causes any residual material on the scraper 15 to be thrown into the drying tower body 1 during the oscillation, preventing material residue on the scraper 15 and the smoothing roller 12. Furthermore, the scraper 15 fanns the material during the oscillation, allowing it to move randomly and be uniformly stirred, resulting in uniform drying.

[0044] Furthermore, the inner wall of the drying tower body 1 is provided with a first annular groove 17, a second annular groove 18, a third annular groove 19, and a fourth annular groove 20 sequentially from top to bottom. A second screen 21, a third screen 22, a fourth screen 23, and a fifth screen 24 are slidably installed in the first annular groove 17, the second annular groove 18, the third annular groove 19, and the fourth annular groove 20, respectively. The second screen 21 and the inner wall of the first annular groove 17, the third screen 22 and the inner wall of the second annular groove 18, the fourth screen 23 and the inner wall of the third annular groove 19, and the fifth screen 24 and the inner wall of the fourth annular groove 20 are all connected by second elastic members 25 uniformly arranged along their circumferential direction.

[0045] Specifically, the second screen 21, third screen 22, fourth screen 23, and fifth screen 24 are all inverted frustum-shaped structures, allowing for better material handling. When material falls from the first screen 3, it falls onto the second screen 21, where it is screened. The material then falls onto the third screen 22, where it is screened again. Finally, it falls onto the fifth screen 24, where it is screened. This process allows for step-by-step screening of the material. When the material is placed on the third screen 22, the fourth screen 23, and the fifth screen 24, it exerts a certain amount of pressure on the second screen 21, the third screen 22, the fourth screen 23, and the fifth screen 24. This pressure causes the second screen 21, the third screen 22, the fourth screen 23, and the fifth screen 24 to exert a certain amount of pressure on the second elastic element 25 (the second elastic element 25 is a component capable of extension and retraction, preferably a spring). Because the second elastic element 25 can extend and retract, the second screen 21, the third screen 22, the fourth screen 23, and the fifth screen 24 can perform a certain amount of passive vibration. This allows the material on the second screen 21, the third screen 22, the fourth screen 23, and the fifth screen 24 to undergo a certain amount of vibration screening, preventing the material from clogging the screen holes of the second screen 21, the third screen 22, the fourth screen 23, and the fifth screen 24.

[0046] Furthermore, a driven shaft 26 is rotatably mounted in the central region of the fifth screen 24. The top of the driven shaft 26 passes through the fourth screen 23, the third screen 22, the second screen 21, and the first screen 3 in sequence and is connected to the bottom of the drive shaft 4. Multiple anti-blocking plates 27 are arranged circumferentially on the outer wall of the driven shaft 26 above the second screen 21, the third screen 22, the fourth screen 23, and the fifth screen 24, respectively. Specifically, when the driving component 2 drives the drive shaft 4 to rotate... When in operation, the drive shaft 4 drives the driven shaft 26 to rotate, and the driven shaft 26 drives the anti-blocking plate 27 to rotate, so that the anti-blocking plate 27 stirs the residual material on the second screen 21, the third screen 22, the fourth screen 23 and the fifth screen 24 respectively, so as to prevent the material from clogging the screen holes on the second screen 21, the third screen 22, the fourth screen 23 and the fifth screen 24.

[0047] Furthermore, a first hot air pipe 28 is provided on the side wall of the drying tower body 1 between the second screen 21 and the third screen 22; a second hot air pipe 29 is provided on the side wall of the drying tower between the third screen 22 and the fourth screen 23; and a cold air pipe 30 is provided on the side wall of the drying tower between the fourth screen 23 and the fifth screen 24. Specifically, when the material is transported into the drying tower body 1 from the feed pipe, hot air is supplied to the drying tower body 1 through the first hot air pipe 28 and the second hot air pipe 29, so that the material in the drying tower body 1 is dried by hot air. After the material is evenly dried, cold air is supplied to the drying tower body 1 through the cold air pipe 30, so that the cold air cools the dried material and prevents the temperature of the material from being too high during post-drying processing, which would affect the collection and processing of the material. This is common knowledge in the art and will not be elaborated further.

[0048] In another embodiment of the present invention, an arc-shaped through groove 31 is formed on the side wall of the drying tower body 1 on the same side as the first hot air pipe 28 and at the location of the second screen 21. An arc-shaped groove 32 is formed on the side wall of the drying tower body 1 at the top of the arc-shaped through groove 31. An arc-shaped baffle 33 is slidably installed in the arc-shaped groove 32. The arc-shaped baffle 33 and the inner wall of the top of the arc-shaped groove 32 are connected by a third elastic element 34. An arc-shaped sliding groove 35 is formed on the side wall of the drying tower body 1 at the bottom of the arc-shaped through groove 31. An arc-shaped baffle 36 is slidably installed in the arc-shaped through groove 31 and is slidably installed in the arc-shaped sliding groove 35. The first screen 3 is located between the top of the arc-shaped baffle 36 and the bottom of the arc-shaped baffle 33. A straight plate 37 is provided on the outer wall. A return plate 38 is installed on the outer wall of the drying tower body 1 at the bottom end of the straight plate 37. The straight plate 37 and the return plate 38 are connected by a fourth elastic element 39. Two square rods 40 are symmetrically installed on the side wall of the straight plate 37. The two square rods 40 extend to the position of the cold air duct 30. A first sealing plate 41 is slidably provided at the bottom end of the first hot air duct 28. The two ends of the first sealing plate 41 are respectively connected to the two square rods 40. A second sealing plate 42 is slidably provided at the bottom end of the second hot air duct 29. The two ends of the second sealing plate 42 are respectively connected to the two square rods 40. A third sealing plate 43 is slidably provided at the bottom end of the cold air duct 30. The two ends of the third sealing plate 43 are respectively connected to the bottom ends of the two square rods 40.

[0049] Specifically, the centers of the arc-shaped through groove 31, the arc-shaped groove 32, the arc-shaped partition 33, the arc-shaped sliding groove 35, and the arc-shaped baffle 36 all coincide with the center of the drying tower body 1 (or the second screen 21). That is, the arc-shaped through groove 31, the arc-shaped groove 32, the arc-shaped partition 33, the arc-shaped sliding groove 35, and the arc-shaped baffle 36 are all set on the circular outer wall of the drying tower body 1 on the same side as the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30. When the material falls from the first screen 3 onto the second screen 21, the material exerts a certain amount of pressure on the second screen 21, causing the second screen 21 to move towards the bottom of the drying tower body 1. The second screen 21 slides at one end of the section to squeeze the arc-shaped baffle 36 to a certain extent, so that the arc-shaped baffle 36 drives the straight plate 37 to move towards the bottom end of the drying tower body 1. The straight plate 37 squeezes the fourth elastic element 39 (the fourth elastic element 39 is an element that can extend and retract, preferably a spring) to a certain extent, so that the fourth elastic element 39 is in a compressed state; (1) The straight plate 37 drives the square rod 40 to move towards the bottom end of the drying tower body 1. Since the square rod 40 is connected to the first sealing plate 41, the second sealing plate 42 and the third sealing plate 43, the square rod 40 drives the first sealing plate 41, the second sealing plate 42 and the third sealing plate 43 towards the bottom end of the drying tower body 1. The bottom end of the drying tower body 1 moves, causing the first sealing plate 41 to open the opening of the first hot air pipe 28 or reduce the sealing area of ​​the first sealing plate 41 on the first hot air pipe 28 (the first sealing plate 41 does not completely seal the first hot air pipe 28, but rather blocks the hot air in the first hot air pipe 28 to a certain extent, thereby controlling the amount of hot air delivered from the first hot air pipe 28 into the drying tower body 1). Before the material enters the drying tower body 1, due to the elastic force of the fourth elastic element 39, the straight plate 37 presses the second screen 21 against the top of the arc-shaped through groove 31 through the arc-shaped baffle 36. At this time, the first sealing plate 41... Plate 41 performs most of the sealing treatment on the first hot air duct 28, rather than completely sealing it. Simultaneously, the second hot air duct 29, the second sealing plate, the cold air duct 30, and the third sealing plate have the same sealing effect as the first sealing plate 41 and the first hot air duct 28. This increases the air intake in the first hot air duct 28, the second hot air duct 29, and the cold air duct 30. As a result, the amount of material on the second screen 21 is matched with the amount of air intake in the first hot air duct 28, the second hot air duct 29, and the cold air duct 30. That is, the more material accumulates on the second screen 21, the greater the air intake in the first hot air duct 28, the second hot air duct 29, and the cold air duct 30.The less material accumulates on the second screen 21, the smaller the air intake in the first hot air duct 28, the second hot air duct 29, and the cold air duct 30. This allows the air intake in the first hot air duct 28, the second hot air duct 29, and the cold air duct 30 to be adjusted according to the amount of material, thereby reducing the waste of hot air conveyed in the first hot air duct 28 and the second hot air duct 29, and the waste of cold air conveyed in the cold air duct 30, thus saving energy. At the same time, due to the elasticity of the third elastic element 34 (the third elastic element 34 is a retractable and restorable element, preferably a spring) and the weight of the arc-shaped partition 33 itself, the arc-shaped partition 33 moves with the movement of the arc-shaped baffle 36, so that the arc-shaped partition is always pressed against the top of the second screen 21, making the arc-shaped partition... The plate seals the arc-shaped groove at the top of the second screen 21 to prevent material leakage from the arc-shaped groove at the top of the second screen 21; (2) When the material on the second screen 21 decreases, under the rebound action of the fourth elastic element 39, the fourth elastic element 39 drives the first sealing plate 41, the second sealing plate 42 and the third sealing plate 43 to move towards the top end of the drying tower body 1 through the straight plate 37 and the square rod 40, so that the first sealing plate 41 increases the sealing area of ​​the first hot air pipe 28, the second sealing plate 42 increases the sealing area of ​​the second hot air pipe 29, and the third sealing plate 43 increases the sealing area of ​​the cold air pipe 30, so that the air intake in the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30 is reduced, thereby reducing energy waste.

[0050] In another embodiment of the present invention, the first hot air duct 28, the second hot air duct 29, and the cold air duct 30 are all square tubes. Each of the first hot air duct 28, the second hot air duct 29, and the cold air duct 30 is provided with a step-by-step sealing mechanism. The step-by-step sealing mechanism includes a chain plate 44, which is formed by multiple flat plates 47 rotatably connected by pins 45. Each of the first hot air duct 28, the second hot air duct 29, and the cold air duct 30 has a through groove at its bottom end. Two inclined grooves 46 are symmetrically formed on the inner walls of both sides of the first hot air duct 28, the second hot air duct 29, and the cold air duct 30, located above the through grooves. Each of the inclined grooves 46 extends from near the drying end... One side of the tower body 1 is inclined downwards to the side away from the drying tower body 1. The flat plate 47 at one end of the chain plate 44 is rotatably connected to the inner wall of the two square rods 40. The flat plate 47 at the other end of the chain plate 44 abuts against the top of the inner wall of the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30. All the pins 45 of each chain plate 44 are slidably installed in their corresponding inclined grooves 46. The top of the flat plate 47 at the top and bottom of the chain plate 44 is inclined and parallel to the top inner wall of the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30. The flat plate 47 connected in the middle of the chain plate 44 is planar and is set parallel to the inclined groove 46.

[0051] Specifically, (1) when the straight plate 37 drives the square rod 40 to move towards the bottom end of the drying tower body 1, the square rod 40 drives the chain plate 44 to move towards the bottom end of the drying tower body 1. The pin 45 on the chain plate 44 slides along the trajectory of the inclined groove 46, so that the bottom of the chain plate 44 slides out of the inclined groove 46 from the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30, so that the chain plate 44 opens the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30, and the inclined setting of the chain plate 44 can direct the hot air or cold air in the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30 to the top of the drying tower body 1. The conveyor is tilted at the end and can gradually open the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30, thereby increasing the air intake of the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30. This allows the air supply of the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30 to be matched with the amount of material in the drying tower body 1. That is, the more material accumulates on the second screen 21, the greater the air intake of the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30 (the chain plate 44 reduces the blockage of the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30, thus increasing the air intake, such as...). Figure 13 (As shown); the less material accumulates on the second screen 21, the smaller the air intake in the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30 (the increased blockage of the chain plate 44 on the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30 reduces the air intake, such as...). Figure 12As shown), the air intake in the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30 can be transported according to the amount of material, thereby reducing the waste of hot air transported in the first hot air pipe 28 and the second hot air pipe 29 and the waste of cold air transported in the cold air pipe 30, thus saving energy; (2) When the straight plate 37 drives the square rod 40 to move towards the top end of the drying tower body 1, the square rod 40 drives the chain plate 44 to move towards the top end of the drying tower body 1, and the pin 45 on the chain plate 44 slides along the trajectory of the inclined groove 46, so that the bottom of the chain plate 44 slides from the inclined groove 46 into the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30, so that the chain plate 44 closes the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30, and the inclined setting of the chain plate 44 can tilt the hot air or cold air in the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30 towards the top end of the drying tower body 1. The inclined conveyor can gradually close the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30, reducing the air intake of the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30. This allows the air supply of the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30 to be matched with the amount of material in the drying tower body 1. The chain plate 44 is set in an inclined shape, making the chain plate 44 slide more smoothly in the inclined groove 46. Furthermore, since the chain plate 44 is connected by multiple pins 45, there is a certain range of motion between the component plates, which can reduce the probability of the chain plate 44 getting stuck when sliding in the inclined groove 46 (due to temperature rise or fall, the first sealing plate 41, the second sealing plate 42, and the third sealing plate 43 may deform, resulting in the first sealing plate 41, the second sealing plate 42, and the third sealing plate 43 getting stuck when sliding), thus extending the service life of the chain plate 44.

[0052] In another embodiment of the present invention, a turning groove 48 is further provided at the bottom end of the inner wall of the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30, located at the bottom end of the inclined groove 46. The turning groove is divided into an arc groove 481 and an outlet groove 482. The radius of the arc groove 481 is the distance between the center of the pin 45 on the top plate 47 of the chain plate 44 and the center of the pin 45 on the plate 47 connected to the top plate 47 of the chain plate 44 (that is, the distance between the top plate 47 of the chain plate 44). The distance between the centers of the two pins 45 at the end), the outlet groove 482 is inclined and connected to the arc groove 481, the ends of the arc groove 481 and the outlet groove 482 are both connected to the inclined groove 46, the radius of the pin 45 on the top plate 47 of the chain plate 44 is smaller than the radius of the pin 45 on the other plates 47, and the pin 45 on the top plate 47 of the chain plate 44 is slidably engaged with the flip groove 48, and a flip plate 49 is rotatably installed at the end of the outlet groove 482 connected to the inclined groove 46.

[0053] Specifically, (1) when the straight plate 37 drives the square rod 40 to move towards the bottom end of the drying tower body 1, the square rod 40 drives the chain plate 44 to move towards the bottom end of the drying tower body 1. The pin 45 on the chain plate 44 slides along the trajectory of the inclined groove 46, so that the bottom of the chain plate 44 slides out of the inclined groove 46 from the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30, so that the chain plate 44 opens the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30, and the inclined setting of the chain plate 44 can direct the hot air or cold air in the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30 to The top end of the drying tower body 1 is inclined for conveying, and the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30 can be gradually opened, thereby increasing the air intake of the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30. When the pin 45 on the plate 47 connected to the top plate 47 of the chain plate 44 moves to the bottom of the inclined groove 46, the pin 45 on the top plate 47 of the chain plate 44 slides into the tilting groove 48. Since the radius of the arc groove 481 is equal to the ratio of the pin 45 on the top plate 47 of the chain plate 44 to the flat plate 47 connected to the top plate 47 of the chain plate 44, the pin 45 on the top plate 47 of the chain plate 44 slides into the tilting groove 48. The distance between the centers of the pins 45 on plate 47, and the blowing of hot air (or cold air) in the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30, cause the pins 45 on the top plate 47 of the chain plate 44 to slide into the arc groove 481. (Because the radius of the pins 45 on the top plate 47 of the chain plate 44 is smaller than the radius of the pins 45 on other plates 47, when other pins 45 pass through the arc groove 481, the width of the flip groove 48 (i.e., the opening width of the flip groove 48) is smaller than that of the other pins 45 except for the pins 45 on the top plate 47 of the chain plate 44.) Shaft 45, so other pins 45 will not slide into the flip groove 48, and the pins 45 on the top plate 47 of the chain plate 44 will not slide into the outlet groove 482 due to the partition of the flip plate 49, until the pins 45 on the top plate 47 of the chain plate 44 slide to the connection position of the arc groove 481 and the outlet groove 482, so that the chain plate 44 can open the openings of the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30 more, thereby adapting to more material on the second screen 21, so that more material on the second screen 21 can get a larger air volume for drying and cooling;(2) When the straight plate 37 drives the square rod 40 to move towards the top end of the drying tower body 1, the square rod 40 drives the chain plate 44 to move towards the top end of the drying tower body 1. The pin 45 on the chain plate 44 slides along the trajectory of the inclined groove 46, causing the plate 47 at the bottom of the chain plate 44 to push the plate at the top step by step into the first hot air pipe 28, the second hot air pipe 29 and the cold air pipe 30. Under the push of the other plates 47, the pin 45 on the top plate 47 of the chain plate 44 slides along the trajectory of the outlet groove 482. When the pin 45 on the top plate 47 of the chain plate 44 slides... At the connection point between the movable outlet groove 482 and the inclined groove 46, the pin 45 on the top plate 47 of the chain plate 44 pushes the flap 49 to rotate, allowing the pin 45 on the top plate 47 of the chain plate 44 to slide out of the outlet groove 482. When the pin 45 on the top plate 47 of the chain plate 44 disengages from the flap 49, the flap 49, under its own gravity, re-closes the outlet groove 482, preventing the pin 45 on the top plate 47 from re-entering the outlet groove 482 from its end. This causes the chain plate 44 to gradually close the first hot air pipe 28, the second hot air pipe 29, and the cold air pipe 30.

[0054] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fluid dynamic drying tower for processing fermented meal products, comprising a drying tower body, wherein a stirring unit is provided at the top of the drying tower body, characterized in that, A first screen is provided on the top side inside the drying tower body, and a stirring assembly is provided above the first screen. A drive unit for providing power to the stirring assembly is provided at the top of the drying tower body. The stirring assembly is used to stir the material on the first screen. The drying tower body has a first annular groove, a second annular groove, a third annular groove, and a fourth annular groove sequentially formed from top to bottom on its inner wall. A second screen, a third screen, a fourth screen, and a fifth screen are slidably installed in the first annular groove, the second annular groove, the third annular groove, and the fourth annular groove, respectively. The second screen and the inner wall of the first annular groove, the third screen and the inner wall of the second annular groove, the fourth screen and the inner wall of the third annular groove, and the fifth screen and the inner wall of the fourth annular groove are all connected by second elastic members that are uniformly arranged along their circumferential direction. The top of the fifth screen is rotatably provided with a driven shaft. The top of the driven shaft passes through the fourth screen, the third screen, the second screen and the first screen in sequence and is connected to the bottom of the drive shaft. Multiple anti-blocking plates are provided on the outer wall of the driven shaft along its circumferential direction above the second screen, the third screen, the fourth screen and the fifth screen respectively. A first hot air duct is provided on the side wall of the drying tower body between the second and third screens. A second hot air duct is provided on the side wall of the drying tower body between the third and fourth screens. A cold air duct is installed on the side wall of the drying tower body between the fourth and fifth screens. An arc-shaped through groove is formed on the side wall of the drying tower body on the same side as the first hot air duct, at the portion adjacent to the second screen. An arc-shaped groove is formed on the side wall of the drying tower body at the top of the arc-shaped through groove. An arc-shaped baffle is slidably installed in the arc-shaped groove. The arc-shaped baffle and the inner wall of the top of the arc-shaped groove are connected by a third elastic element. An arc-shaped sliding groove is formed on the side wall of the drying tower body at the bottom of the arc-shaped through groove. An arc-shaped baffle is slidably installed in the arc-shaped through groove. The first screen is located between the top of the arc-shaped baffle and the bottom of the arc-shaped baffle. The outer wall of the arc-shaped baffle is provided with... The drying tower body has a straight plate, and a return plate is installed on the outer wall of the straight plate at the bottom end of the straight plate. The straight plate and the return plate are connected by a fourth elastic element. Two square rods are symmetrically installed on the side wall of the straight plate, and the two square rods extend to the position of the cold air duct. A first sealing plate is slidably installed at the bottom end of the first hot air duct, and the two ends of the first sealing plate are respectively connected to the two square rods. A second sealing plate is slidably installed at the bottom end of the second hot air duct, and the two ends of the second sealing plate are respectively connected to the two square rods. A third sealing plate is slidably installed at the bottom end of the cold air duct, and the two ends of the third sealing plate are respectively connected to the bottom ends of the two square rods.

2. The fluid dynamic drying tower for processing fermented meal products according to claim 1, characterized in that, The stirring assembly includes a drive shaft and a U-shaped frame. The output end of the drive unit passes through the top of the drying tower body and is connected to the drive shaft. Two U-shaped frames are symmetrically arranged on the drive shaft. Each of the two U-shaped frames is rotatably mounted with a stirring roller via a stirring shaft. Multiple stirring blades are evenly installed on the outer wall of the two stirring rollers along their circumferential direction. The stirring blades are located above the first screen. The ends of the two stirring shafts near the inner wall of the drying tower body pass through their corresponding U-shaped frames and are each connected to a stirring gear. An annular tooth is provided on the inner wall of the drying tower body, and the annular tooth meshes with the two stirring gears.

3. The fluid dynamic drying tower for processing fermented meal products according to claim 2, characterized in that, Two mounting brackets are symmetrically installed on the stirring shaft, and a smoothing roller is rotatably mounted on each of the two mounting brackets.

4. The fluid dynamic drying tower for processing fermented meal products according to claim 3, characterized in that, The tops of the two mounting brackets are arc-shaped structures, and each of the top ends of the two mounting brackets has an arc-shaped groove. A scraper is mounted in the middle of each of the two mounting brackets in a rotatable manner through a positioning shaft. The centers of the two positioning shafts coincide with the centers of their corresponding arc-shaped grooves. The two scrapers abut against their corresponding smoothing rollers. The top ends of the two scrapers are slidably mounted in their corresponding arc-shaped grooves. The side walls of the two scrapers and the inner walls of their corresponding arc-shaped grooves are connected by a first elastic element.

5. The fluid dynamic drying tower for processing fermented meal products according to claim 1, characterized in that, A feed pipe is provided on one side of the top of the drying tower body, and an air outlet pipe is provided on the other side of the top of the drying tower body.

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