A drying device for the preparation of ferrous sulfate

Abstract

The present invention discloses a drying device for the preparation of ferrous sulfate, belonging to the technical field of drying devices, including a speed reduction mechanism and a drying mechanism connected to the speed reduction mechanism. The driving assembly includes a drying cylinder, and sealing plates are arranged on both sides of the drying cylinder. A first rotating shaft is arranged on the first bearing, and a driven pulley is arranged on the first rotating shaft. The driven pulley is connected to a belt. A second bearing is arranged on the other sealing plate, and a second rotating shaft is arranged on the second bearing. One end of each of the first rotating shaft and the second rotating shaft extends into the drying cylinder. A drying assembly is arranged between the first rotating shaft and the second rotating shaft, and a plurality of material turning assemblies are evenly distributed along the circumferential direction on the drying assembly. The present invention can ensure that no ferrous sulfate powder remains in the material turning assembly every time the material turning assembly throws down the ferrous sulfate powder, enabling the material turning assembly to hold the maximum amount of ferrous sulfate powder in the next scoop-up, and making the drying efficiency higher after multiple turnings.

Description

Technical Field

[0001] The present invention relates to the technical field of drying devices, and specifically to a drying device for the preparation of ferrous sulfate. Background Art

[0002] In the preparation of ferrous sulfate, the raw materials need to be reacted and purified, and then the ferrous sulfate solution is evaporated and concentrated, followed by cooling and crystallization to obtain ferrous sulfate crystals (or ferrous sulfate powder). Then, the ferrous sulfate powder is dried. There are various drying devices for ferrous sulfate powder. Among them, the device in which the powder falls on the heating pipe for drying has the best drying effect. It dries the ferrous sulfate powder through heat exchange with the pipe, avoiding direct contact between the air flow and the ferrous sulfate powder to prevent the water vapor in the air flow from having a secondary impact on the ferrous sulfate powder. However, after the ferrous sulfate powder directly falls on the heating pipe and is briefly heated, it will slide down along the arc surface of the pipe and fall into the drying cylinder, resulting in low drying efficiency. Therefore, in the prior art, while drying the ferrous sulfate crystal powder, a rotating turning mechanism is also used to continuously scoop up the ferrous sulfate crystal powder that has fallen into the drying cylinder and, through a high-throwing motion, make the scooped-up ferrous sulfate powder fall on the heating pipe again for repeated heating to remove moisture and dry it. However, due to the slight moisture in the ferrous sulfate powder, every time the turning mechanism turns to the highest point, a part of it will remain in the turning mechanism. Over time, the space in the turning mechanism becomes smaller, the amount of material scooped each time is less, and the amount of ferrous sulfate powder thrown onto the heating pipe by high-throwing also becomes less, resulting in a lower drying efficiency of the ferrous sulfate powder in the high-throwing form. Summary of the Invention

[0003] In order to solve the technical problems mentioned in the above background art, the present invention provides a drying device for the preparation of ferrous sulfate, and the technical solution adopted is as follows:

[0004] It includes a speed reduction mechanism and a drying mechanism connected to the speed reduction mechanism. The speed reduction mechanism includes a speed reduction motor. A driving pulley is arranged on the output shaft of the speed reduction motor, and a belt is arranged on the driving pulley. The drying mechanism includes a driving component. The driving component includes a drying cylinder. Sealing plates are arranged on both sides of the drying cylinder. A first bearing is arranged on one of the sealing plates, a first rotating shaft is arranged on the first bearing, a driven pulley is arranged on the first rotating shaft, and the driven pulley is connected to the belt. A second bearing is arranged on the other sealing plate, a second rotating shaft is arranged on the second bearing. One end of each of the first rotating shaft and the second rotating shaft extends into the drying cylinder. A drying component is arranged between the first rotating shaft and the second rotating shaft, and a number of turning components are evenly distributed along the circumferential direction on the drying component.

[0005] Further, a group of arc-shaped fixing plates are arranged at the bottom of the drying cylinder. Legs are arranged at the bottom of the arc-shaped fixing plates, and a fixing base is arranged at the bottom of the legs. The speed reduction motor is fixed on the fixing base.

[0006] Furthermore, a number of feed pipes are evenly distributed directly above the drying cylinder. One end of each feed pipe extends into the drying cylinder and faces the drying assembly.

[0007] Furthermore, the drying assembly includes a first rotary joint and a second rotary joint. A heating pipe is arranged between the first rotary joint and the second rotary joint. The heating pipe is located at the center inside the drying cylinder. The first rotary joint and the second rotary joint are respectively connected to a first rotating shaft and a second rotating shaft. An air inlet pipe is arranged directly above the first rotary joint, and an air outlet pipe is arranged directly above the second rotary joint. Both the air inlet pipe and the air outlet pipe penetrate through the drying cylinder and extend to the outside of the drying cylinder.

[0008] Furthermore, the material turning assembly includes a number of material turning parts evenly distributed along the circumferential direction of the heating pipe. A vibrating part is arranged on the material turning part. It also includes a limiting rod arranged on the inner wall of the drying cylinder. The end of the limiting rod is dome-shaped, and the limiting rod is in sliding contact with the vibrating part.

[0009] Furthermore, the material turning part includes a number of fixed rods evenly distributed along the circumferential direction of the heating pipe. A square sleeve is arranged on the fixed rod, and a dustpan is arranged on the square sleeve. A vibrating part is arranged on one side of the dustpan.

[0010] Furthermore, the vibrating part includes a lower sleeve arranged on one side of the dustpan. Both the upper and lower parts of the lower sleeve are open structures. An upper sleeve is arranged on the lower sleeve. Both the upper and lower parts of the upper sleeve are closed structures. A shifting rod is arranged inside the upper sleeve. Both ends of the shifting rod respectively penetrate through and extend to the upper and lower sides of the upper sleeve. Both ends of the shifting rod are dome-shaped. A circular pressing plate and a spring are arranged inside the upper sleeve. The spring is located between the upper sleeve and the circular pressing plate. The shifting rod passes through the center of the spring and the circular pressing plate, and the shifting rod is fixed to the circular pressing plate.

[0011] Furthermore, a fixing frame is arranged on one of the sealing plates. A limiting hole is arranged on the fixing frame. A threaded rod is arranged inside the limiting hole. A handwheel is arranged on the threaded rod. A sealing door is arranged on the threaded rod. A threaded hole is arranged on the sealing door. The threaded rod is in threaded connection with the threaded hole. A sliding rod is also arranged on the fixing frame. The sliding rod penetrates through the sealing door and is in sliding connection with the sealing door.

[0012] The present invention has the following advantages: The drying component is driven to rotate slowly by a speed reduction mechanism, and the turning component is driven to rotate by the drying component. Hot air is introduced into the drying component, so that the ferrous sulfate powder falls on the drying component and is heated, and the moisture is removed to become dry, and then it falls into the drying cylinder. The turning component scoops up the ferrous sulfate powder falling in the drying cylinder and throws it into the air and onto the drying component, so that the ferrous sulfate powder in the drying cylinder is repeatedly heated and dried. When the turning component rotates to the highest point, it is automatically impacted, so that the accumulated ferrous sulfate powder that has not been completely poured out in the turning component is shaken off. The present invention can ensure that no ferrous sulfate powder remains in the turning component every time the turning component throws the ferrous sulfate powder, so that the turning component has the largest space to hold the ferrous sulfate powder when it scoops up the ferrous sulfate powder next time, and the drying efficiency is higher after multiple turnings.

[0013] The residual ferrous sulfate powder in the turning component is shaken off every time it rotates to the highest point, and the shaken-off residual ferrous sulfate powder just falls on the drying component and is heated and dried, further improving the drying efficiency.

[0014] The ferrous sulfate powder scooped up by the turning component each time falls on the rotating drying component, so that the ferrous sulfate powder falling on the drying component can always fall into the drying cylinder, avoiding some ferrous sulfate powder from accumulating on the drying component, resulting in low heat exchange efficiency between the drying component and other falling ferrous sulfate powder, and thus affecting the drying efficiency. Description of the Drawings

[0015] Figure 1 Stereoscopic display of the present invention without the drying cylinder Figure 1 ;

[0016] Figure 2 Partial enlarged view of the a position of the present invention;

[0017] Figure 3 Stereoscopic view of the turning component of the present invention;

[0018] Figure 4 Partial longitudinal-sectional stereoscopic view of the vibrating part on the turning part of the present invention;

[0019] Figure 5 For the present invention Figure 4 Partial enlarged view of the b position in;

[0020] Figure 6 Stereoscopic display of the present invention without the drying cylinder Figure 2 ;

[0021] Figure 7 Stereoscopic of the present invention Figure 1 ;

[0022] Figure 8 Stereoscopic of the present invention Figure 2 ;

[0023] Figure 9 For the present invention Figure 8 Partial enlarged view at position c in the present invention.

[0024] Attached drawings: 1. Reducing motor, 2. Driving pulley, 3. Belt, 4. Drying cylinder, 5. Sealing plate, 6. First bearing, 7. First rotating shaft, 8. Driven pulley, 9. Second bearing, 10. Second rotating shaft, 11. Leg, 12. Fixed seat, 13. Feed pipe, 14. First rotary joint, 15. Second rotary joint, 16. Heating pipe, 17. Air inlet pipe, 18. Air outlet pipe, 19. Limiting rod, 20. Fixed rod, 21. Square sleeve, 22. Dustpan, 23. Lower sleeve, 24. Upper sleeve, 25. Poking rod, 26. Circular pressing plate, 27. Spring, 28. Fixed frame, 29. Limiting hole, 30. Threaded rod, 31. Handwheel, 32. Sealing door, 33. Threaded hole, 34. Slide bar, 35. Arc-shaped fixing plate. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-6, the present invention provides a drying device for the preparation of ferrous sulfate, comprising a speed reduction mechanism and a drying mechanism connected to the speed reduction mechanism. The speed reduction mechanism drives the drying mechanism. The speed reduction mechanism includes a reduction motor 1. A driving pulley 2 is arranged on the output shaft of the reduction motor 1. The reduction motor 1 drives the driving pulley 2 to rotate. A belt 3 is arranged on the driving pulley 2. The driving pulley 2 drives the belt 3, and the belt 3 drives the driven pulley 8 to rotate. The drying mechanism includes a driving assembly. The driving assembly includes a drying cylinder 4. Sealing plates 5 are arranged on both sides of the drying cylinder 4. Both sides of the drying cylinder 4 are of an open structure. The drying cylinder 4 is fixed to the sealing plates 5. A first bearing 6 is arranged on one of the sealing plates. A first rotating shaft 7 is arranged on the first bearing 6. A driven pulley 8 is arranged on the first rotating shaft 7. The driven pulley 8 is connected to the belt 3. The driven pulley 8 drives the first rotating shaft 7 to rotate on the first bearing 6. A second bearing 9 is arranged on the other sealing plate 5. A second rotating shaft 10 is arranged on the second bearing 9. One end of each of the first rotating shaft 7 and the second rotating shaft 9 extends into the drying cylinder 4. A drying assembly is arranged between the first rotating shaft 7 and the second rotating shaft 10. The drying assembly is respectively fixed to the first rotating shaft 7 and the second rotating shaft 10. Therefore, when the first rotating shaft 7 rotates, it drives the drying assembly and the second rotating shaft 10 to rotate on the second bearing 9. A plurality of material turning assemblies are evenly distributed along the circumferential direction on the drying assembly. The drying assembly drives the material turning assemblies to rotate.

[0027] A group of arc-shaped fixing plates 35 are arranged at the bottom of the drying cylinder 4. The arc-shaped fixing plates 35 are fixed to the bottom of the drying cylinder 4. Legs 11 are arranged at the bottom of the arc-shaped fixing plates 35. The legs 11 are fixed to the arc-shaped fixing plates 35. A fixing seat 12 is arranged at the bottom of the legs 11. The legs 11 are fixed on the fixing seat 12. The reduction motor 1 is fixed on the fixing seat 12. A plurality of feed pipes 13 are evenly distributed directly above the drying cylinder 4. One end of the feed pipe 13 extends into the drying cylinder 4 and faces the drying assembly directly. The ferrous sulfate powder enters the drying cylinder 4 through a plurality of evenly arranged feed pipes 13 and falls on the drying assembly for uniform drying.

[0028] The drying assembly includes a first rotary joint 14 and a second rotary joint 15. Both the first rotary joint 14 and the second rotary joint 15 are fixed on their respective sealing plates 5. A heating pipe 16 is arranged between the first rotary joint 14 and the second rotary joint 15. The heating pipe 16 is located at the center inside the drying cylinder 4. The first rotary joint 14 and the second rotary joint 15 are respectively connected to the first rotating shaft 7 and the second rotating shaft 10. Since the first rotary joint 14 and the second rotary joint 15 are both fixed on their respective sealing plates 5, the outer shells of the first rotary joint 14 and the second rotary joint 15 are fixed and immovable. The two ends of the pipe fittings inside them are respectively connected to the corresponding first rotating shaft 7 and the heating pipe 16, and the second rotating shaft 10 and the heating pipe 16. The first rotating shaft 7 drives the pipe fittings inside the first rotary joint 14 to rotate, and the pipe fittings inside it drive the heating pipe 16 to rotate. An air inlet pipe 17 is arranged directly above the first rotary joint 14, and an air outlet pipe 18 is arranged directly above the second rotary joint 15. Both the air inlet pipe 17 and the air outlet pipe 18 penetrate through the drying cylinder 4 and extend to the outside of the drying cylinder 4. The hot air flows into the first rotary joint 14 through the air inlet pipe 17 and then into the heating pipe 16, causing the heating pipe 16 to heat up. The air flow inside the heating pipe 16 is then discharged through the air outlet pipe 18. The use of pipe fittings and rotary joints is prior art, such as rotary water pipe joints, etc., and will not be elaborated here too much.

[0029] The material turning assembly includes a number of material turning members evenly distributed along the circumferential direction of the heating pipe 16. A vibrating member is arranged on the material turning member. When the material turning member rotates with the heating pipe 16, the material turning member shovels the ferrous sulfate powder inside the drying cylinder 4 and turns it to a high place and drops it. It also includes a limiting rod 19 arranged on the inner wall of the drying cylinder 4. The end of the limiting rod 19 is dome-shaped. The limiting rod 19 is in sliding contact with the vibrating member. When the vibrating member is in sliding contact with the limiting rod 19, the vibrating member impacts the material turning member, causing the ferrous sulfate powder remaining inside the material turning member to fall off when the material turning member rotates to the highest point. The material turning member includes a number of fixing rods 20 evenly distributed along the circumferential direction of the heating pipe 16. A square sleeve 21 is arranged on the fixing rod 20. The square sleeve 21 is fixed on the fixing rod 20. A dustpan 22 is arranged on the square sleeve 21. The dustpan 22 is fixed on the square sleeve 21. A vibrating member is arranged on one side of the dustpan 22. When the dustpan 22 rotates to the lowest point, the opening part is facing directly upwards. When the dustpan 22 rotates to the highest point, the opening part of the dustpan 22 is facing directly downwards.

[0030] The vibrating part includes a lower sleeve 23 disposed on one side of the dustpan 22. Both the upper and lower parts of the lower sleeve 23 are open structures. An upper sleeve 24 is provided on the lower sleeve 23. Both the upper and lower parts of the upper sleeve 24 are closed structures. A lever 25 is disposed inside the upper sleeve 24. Both ends of the lever 25 penetrate and extend to the upper and lower sides of the upper sleeve 24 respectively. Both ends of the lever 25 are dome-shaped. When the lever 25 is in sliding contact with the limiting rod 19, the lever 25 is pressed and its other end impacts the bottom of the dustpan 22. A circular pressing plate 26 and a spring 27 are disposed inside the upper sleeve 24. The spring 27 is located between the upper sleeve 24 and the circular pressing plate 26. The lever 25 passes through the center of the spring 27 and the circular pressing plate 26 and the lever 25 is fixed to the circular pressing plate 26. When the lever 25 is pressed, it drives the circular pressing plate 26 to press together, compressing the spring 27. When the lever 25 disengages from the limiting rod 19, the spring 27 rebounds, driving the lever 25 to return to its original position.

[0031] Please refer to Figures 8-9 , on one of the sealing plates 5, a fixing frame 28 is provided. A limiting hole 29 is provided on the fixing frame 28. A threaded rod 30 is disposed inside the limiting hole 29. A handwheel 31 is provided on the threaded rod 30. A sealing door 32 is provided on the threaded rod 30. A threaded hole 33 is provided on the sealing door 32. The threaded rod 30 is threadedly connected to the threaded hole 33. A sliding rod 34 is also provided on the fixing frame 28. The sliding rod 34 penetrates the sealing door 32 and is slidably connected to the sealing door 32. When the ferrous sulfate powder needs to be taken out after drying is completed in a certain time, the worker only needs to rotate the handwheel 31. The handwheel 31 drives the threaded rod 30 to rotate in the threaded hole 33, and the sealing door 32 then moves from left to right on the threaded rod 30. At the same time, the sealing door 32 moves on the sliding rod 34, and the sealing door 32 opens. At this time, the ferrous sulfate powder inside the drying cylinder 4 can be taken out.

[0032] Working principle of the present invention: Start the reduction motor 1. The output shaft of the reduction motor 1 drives the driving pulley 2 to rotate. Through the connection of the belt 3, the driven pulley 8 also rotates. The driven pulley 8 drives the first rotating shaft 7 to rotate on the first bearing 6. The first rotating shaft 7 drives the heating pipe 16 to rotate through the first rotary joint 14, and enables the second rotating shaft 10 to rotate on the second bearing 9 through the second rotary joint 15. The hot air flow enters through the air inlet pipe 17, enters the heating pipe 16 through the first rotary joint 14, heats the heating pipe 16, and enters the air outlet pipe 18 through the second rotary joint 15 and is discharged from the air outlet pipe 18. The ferrous sulfate powder enters through each feed pipe 13 and falls on the rotating heating pipe 16, and exchanges heat with the hot air flow in the heating pipe 16, so that the ferrous sulfate powder is dried and falls off into the drying cylinder 4. While rotating, the heating pipe 16 drives the entire material turning assembly to rotate counterclockwise, so that when the dustpan 22 makes a circular motion and rotates from a high place to a low place, it shovels the ferrous sulfate powder in the drying cylinder 4. When it continues to rotate from a low place to a high place after shoveling, the ferrous sulfate powder in the dustpan 22 is thrown from the shovel opening of the dustpan 22 onto the heating pipe 16, so that the ferrous sulfate powder is repeatedly dried. When the dustpan 22 rotates to the highest place, the lever 25 makes sliding contact with the limiting rod 19. The lever 25 is pressed to drive the circular pressing plate 26 to contract inward, and the spring 27 is compressed. The other end of the lever 25 hits the bottom of the dustpan 22. At this time, the dustpan 22 is exactly in a completely inverted state, and the residual and deposited ferrous sulfate powder inside it is shaken off and just falls on the heating pipe 16 and is also heated and dried.

[0033] The operation of the present invention is simple and convenient to use, and is suitable for comprehensive promotion and application. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying device for preparing ferrous sulfate, comprising a speed reduction mechanism and a drying mechanism connected to the speed reduction mechanism, characterized in that, The deceleration mechanism includes a deceleration motor (1). A driving pulley (2) is arranged on the output shaft of the deceleration motor (1), and a belt (3) is arranged on the driving pulley (2). The drying mechanism includes a driving component. The driving component includes a drying cylinder (4). Sealing plates (5) are arranged on both sides of the drying cylinder (4). A first bearing (6) is arranged on one of the sealing plates. A first rotating shaft (7) is arranged on the first bearing (6). A driven pulley (8) is arranged on the first rotating shaft (7). The driven pulley (8) is connected to the belt (3). A second bearing (9) is arranged on the other sealing plate (5). A second rotating shaft (10) is arranged on the second bearing (9). One end of each of the first rotating shaft (7) and the second rotating shaft (10) extends into the drying cylinder (4). A drying component is arranged between the first rotating shaft (7) and the second rotating shaft (10). A plurality of material turning components are evenly distributed along the circumferential direction on the drying component. The material turning component includes a plurality of material turning parts evenly distributed along the circumferential direction of the heating pipe (16). A vibrating part is arranged on the material turning part. It also includes a limiting rod (19) arranged on the inner wall of the drying cylinder (4). The end of the limiting rod (19) is dome-shaped. The limiting rod (19) is in sliding contact with the vibrating part. The material turning part includes a plurality of fixing rods (20) evenly distributed along the circumferential direction of the heating pipe (16). A square sleeve (21) is arranged on the fixing rod (20). A dustpan (22) is arranged on the square sleeve (21). A vibrating part is arranged on one side of the dustpan (22). A plurality of feed pipes (13) are evenly distributed directly above the drying cylinder (4). One end of the feed pipe (13) extends into the drying cylinder (4) and faces the drying component directly. The drying component includes a first rotary joint (14) and a second rotary joint (15). A heating pipe (16) is arranged between the first rotary joint (14) and the second rotary joint (15). The heating pipe (16) is located at the center inside the drying cylinder (4). The first rotary joint (14) and the second rotary joint (15) are respectively connected to the first rotating shaft (7) and the second rotating shaft (10). An air inlet pipe (17) is arranged directly above the first rotary joint (14). An air outlet pipe (18) is arranged directly above the second rotary joint (15). Both the air inlet pipe (17) and the air outlet pipe (18) penetrate through the drying cylinder (4) and extend to the outside of the drying cylinder (4). The vibrating part includes a lower sleeve (23) arranged on one side of the dustpan (22). Both the upper and lower parts of the lower sleeve (23) are open structures. An upper sleeve (24) is arranged on the lower sleeve (23). Both the upper and lower parts of the upper sleeve (24) are closed structures. A shifting rod (25) is arranged inside the upper sleeve (24). Both ends of the shifting rod (25) respectively penetrate through and extend to the upper and lower sides of the upper sleeve (24). Both ends of the shifting rod (25) are dome-shaped. A circular pressing plate (26) and a spring (27) are arranged inside the upper sleeve (24). The spring (27) is located between the upper sleeve (24) and the circular pressing plate (26). The shifting rod (25) passes through the center of the spring (27) and the circular pressing plate (26), and the shifting rod (25) is fixed to the circular pressing plate (26).

2. The drying device for preparing ferrous sulfate according to claim 1, wherein, A set of arc-shaped fixing plates (35) are arranged at the bottom of the drying cylinder (4). Legs (11) are arranged at the bottom of the arc-shaped fixing plates (35). A fixed seat (12) is arranged at the bottom of the legs (11). The reduction motor (1) is fixed on the fixed seat (12).

3. The drying device for preparing ferrous sulfate according to claim 1, characterized in that, A fixing frame (28) is arranged on one of the sealing plates (5). A limiting hole (29) is arranged on the fixing frame (28). A threaded rod (30) is arranged in the limiting hole (29). A handwheel (31) is arranged on the threaded rod (30). A sealing door (32) is arranged on the threaded rod (30). A threaded hole (33) is arranged on the sealing door (32). The threaded rod (30) is in threaded connection with the threaded hole (33). A sliding rod (34) is also arranged on the fixing frame (28). The sliding rod (34) penetrates through the sealing door (32) and is in sliding connection with the sealing door (32).

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