A drying device for fine chemical materials and a processing method thereof

Abstract

The application relates to the technical field of chemical material drying treatment, in particular to a fine chemical material drying treatment device and a treatment method thereof. The device comprises a device main cylinder body installed on supporting legs, a feeding pipe, an air inlet and outlet pipe and a washing liquid inlet pipe are installed on the device main cylinder body, a device heating jacket is arranged on the outer wall of the device main cylinder body, a stirring mechanism is arranged on the device main cylinder body, the stirring mechanism comprises a stirring shaft and multiple main stirring paddles, a manual gear lifting device capable of driving the whole stirring mechanism to lift is arranged on the top of the device main cylinder body. The application can realize integrated drying treatment of chemical materials, and the ailerons on the main stirring paddles can automatically change the angles in different time periods along with the rotation of the stirring shaft during the operation of the device, so that the stirring mode can adapt to the requirements of different process stages such as filtration, washing and drying, and the treatment efficiency and intelligent level are obviously improved.

Description

Technical Field

[0001] This invention relates to the field of chemical material drying technology, specifically a drying device and method for fine chemical materials. Background Technology

[0002] In laboratory research and pilot production in fields such as fine chemicals, pharmaceuticals, and new materials, it is often necessary to perform sequential processing of small batches of materials, including filtration, washing, and drying, for process exploration, parameter optimization, or sample preparation. Traditionally, these processes are often completed step by step using multiple independent devices such as centrifuges, vacuum filters, and ovens. However, this model has inherent defects. Frequent transfer of materials between devices not only leads to cumbersome operation and low efficiency, but also easily causes problems such as material exposure, loss, cross-contamination, and even denaturation. For toxic, easily oxidized, or highly active valuable materials, the potential risks in terms of safety, yield, and data reliability are particularly prominent.

[0003] To address these issues, three-in-one equipment integrating filtration, washing, and drying functions has emerged. This type of equipment integrates multiple processes into a sealed container, effectively avoiding the risks associated with material transfer. However, existing small three-in-one equipment is mostly a simplification of industrial models, resulting in complex structures, high costs, inconvenient operation, and poor adaptability. Furthermore, most equipment cannot achieve independent lifting of the cylinder and chassis, making internal cleaning and filter cake inspection difficult. Additionally, the single heating jacket design suffers from uneven temperature distribution, easily leading to incomplete drying of the filter cake. Moreover, some equipment has a fixed filtration structure, making it impossible to change the filter media according to material characteristics. In addition, the core stirring system of existing integrated equipment is still relatively simple or inconvenient to adjust. Although most equipment uses angle-adjustable stirring blades to try to adapt to different process stages, the adjustment usually requires manual adjustment after the equipment is stopped. This static and lagging adjustment method cannot achieve real-time and automatic switching of stirring modes within a process cycle.

[0004] Therefore, we provide a drying device and method for fine chemical materials to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a drying device and method for fine chemical materials to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A drying device for fine chemical materials includes a main cylinder mounted on a support leg. The main cylinder is equipped with a feed pipe, an air inlet / outlet pipe, and a washing liquid inlet pipe. A heating jacket is fitted on the outer wall of the main cylinder. A stirring mechanism is provided on the main cylinder, which includes a stirring shaft and multiple main stirring blades. A manual gear lifting device capable of driving the stirring mechanism to lift as a whole is provided at the top of the main cylinder. The bottom of the main cylinder of the equipment is provided with a chassis heating jacket, the chassis heating jacket is equipped with a chassis filter device, the bottom of the chassis heating jacket is equipped with a drain pipe, and the main cylinder of the equipment is equipped with a manual chassis lifting device that can drive the chassis heating jacket, chassis filter device and drain pipe to rise and fall. The main cylinder of the equipment is equipped with a manual discharge device on its side, which is used to discharge materials in a closed state. Each of the main stirring blades has an auxiliary wing rotatably mounted on one side. The auxiliary wing and the stirring shaft are connected by a linkage mechanism, so that when the stirring shaft rotates, it can drive each auxiliary wing to rotate at a specific angle in time intervals to dynamically change the working mode of the auxiliary wing.

[0007] A drying device for fine chemical materials as described above: the stirring mechanism further includes a motor reducer, a motor mounting base is provided on the top of the main cylinder of the equipment, a motor reducer is installed on the motor mounting base, the output end of the motor reducer is connected to a stirring shaft through a coupling, the stirring shaft passes through the top of the main cylinder of the equipment and extends into the interior of the main cylinder of the equipment, and multiple main stirring blades are installed at the bottom end of the stirring shaft; The bottom of the main cylinder of the equipment is detachably connected to the chassis heating jacket via a cylinder flange structure. The chassis filter device is detachably connected to the cylinder flange structure via a lifting eye nut. Both the equipment heating jacket and the chassis heating jacket have heat medium inlets and outlets on their side walls for heating and temperature control of the side walls and bottom of the main cylinder of the equipment.

[0008] A drying device for fine chemical materials as described above: The manual gear lifting device includes a top plate mounting seat installed on the top of the main cylinder of the equipment. Multiple lifting screws are rotatably mounted on the top plate mounting seat and are respectively threaded to a motor mounting seat. Synchronous shafts are rotatably mounted on the top plate mounting seat between adjacent lifting screws. The synchronous shafts and the lifting screws are driven by a first gear mechanism. A handwheel shaft is mounted on the top plate mounting seat. A handwheel shaft gear is mounted on the handwheel shaft. An intermediate gear that meshes with the handwheel shaft gear is mounted on one of the synchronous shafts. The first gear mechanism includes a synchronous shaft gear mounted at both ends of the synchronous shaft and a lifting screw gear mounted on the lifting screw and meshing with the synchronous shaft gear.

[0009] A drying device for fine chemical materials as described above: a limiting component for the lifting and lowering of a motor mounting base is installed on the top plate mounting base. The limiting component includes a guide post installed on the top plate mounting base, and the guide post passes through the motor mounting base.

[0010] A drying device for fine chemical materials as described above: the manual chassis lifting device includes a lifting device mounting frame installed on the main cylinder of the equipment, a chassis lifting screw rotatably mounted on the lifting device mounting frame, a chassis lifting block installed on the chassis heating jacket, and the chassis lifting block being threadedly connected to the chassis lifting screw.

[0011] A drying device for fine chemical materials as described above: the manual discharge device includes a discharge port opened on the main body of the equipment, a guide rod installed on the main body of the equipment, a sealing valve plate that is slidably disposed on the guide rod and seals the discharge port, and guide sleeves that are slidably sleeved on the guide rod are installed at both ends of the sealing valve plate. The guide rod is equipped with a manual drive device for driving the sealing valve plate to move linearly. The manual drive device includes a screw connecting block installed on the sealing valve plate, and a discharge screw that is threadedly connected to the screw connecting block is rotatably installed on the guide rod.

[0012] A drying device for fine chemical materials as described above: the linkage mechanism includes a driving gear sleeve and a driven gear shaft rotatably mounted on the top wall inside the main cylinder of the equipment. The driving gear sleeve is sleeved on the stirring shaft and engages with the stirring shaft through a first keyway structure. The driving gear sleeve and the driven gear shaft are engaged through a second gear mechanism. A driving sleeve is sleeved on the driven gear shaft and engages with the driving sleeve through a second keyway structure. A rotating wheel is mounted on the driving sleeve. The rotating wheel has a stepped groove, which is a stepped, closed groove with three sections of different depths. An outer gear is sleeved on the stirring shaft. The outer ring has a connecting arm mounted on it. The end of the connecting arm is fitted with a roller that slides into a stepped groove. An axial sliding sleeve is rotatably connected to the bottom of the outer ring. The axial sliding sleeve is fitted onto the stirring shaft and engages with the stirring shaft via a third keyway structure. A drive ring is mounted at the bottom of the axial sliding sleeve. A geared ring bushing is rotatably mounted on the stirring shaft. The drive ring and the geared ring bushing are engaged by a grooving mechanism. When the drive ring moves axially on the geared ring bushing, it drives the geared ring bushing to rotate. The geared ring bushing engages with multiple ailerons via a third gear mechanism, so that the rotation of the geared ring bushing drives the multiple ailerons to rotate.

[0013] A drying device for fine chemical materials as described above: the first keyway structure includes an upper stirring shaft key mounted on the stirring shaft and a keyway for the drive gear sleeve opened on the inner wall of the drive gear sleeve, wherein the upper stirring shaft key and the keyway for the drive gear sleeve are in sliding fit. The second keyway structure includes a driven gear shaft key mounted on the driven gear shaft and a drive sleeve keyway formed in the inner wall of the drive sleeve, wherein the driven gear shaft key and the drive sleeve keyway are in sliding engagement. The third keyway structure includes a lower stirring shaft key mounted on the stirring shaft and an axial sliding sleeve keyway formed in the inner wall of the axial sliding sleeve, wherein the lower stirring shaft key and the axial sliding sleeve keyway are in sliding fit. The grooving mechanism includes an arc-shaped groove formed on the gear ring bushing and balls embedded and engaged with the inner wall of the drive collar, wherein the balls slide in conjunction with the arc-shaped groove.

[0014] A drying device for fine chemical materials as described above: the second gear mechanism includes a driving gear mounted on a driving gear sleeve and a driven gear mounted on a driven gear shaft, wherein the driving gear meshes with the driven gear; The third gear mechanism includes an auxiliary wing shaft rotatably mounted on the main stirring blade, the auxiliary wing being mounted on the auxiliary wing shaft, a transition shaft rotatably mounted on the main stirring blade, a driving spur gear mounted on the transition shaft, a driven spur gear mounted on the auxiliary wing shaft, the driving spur gear meshing with the driven spur gear, a gear ring mounted on the gear ring bushing, and a transition shaft bevel gear mounted on the transition shaft, the gear ring meshing with the transition shaft bevel gear.

[0015] A method for drying fine chemical materials includes the following steps: S1. Filtration Stage: The mixture of material to be treated and liquid is added into the main cylinder of the equipment through the feed pipe. Air is pressurized into the main cylinder through the air inlet and outlet pipes. The material is separated into solid and liquid by the chassis filtration device. During this period, the motor reducer drives the stirring shaft to rotate at low speed. The stirring shaft drives each agitator to rotate periodically through the linkage mechanism. After the agitator rotates in the filtration stage, it is in a state of near perpendicularity with the main stirring blade, so that the agitator takes the shape of a scraper to scrape and level the filter cake, so that it is evenly compacted on the chassis heating jacket to prevent cracks from forming. S2, Washing stage: Washing liquid is added to the filter cake formed after filtration through the washing liquid inlet pipe. The motor reducer is started to drive the stirring shaft to rotate at high speed. At the same time, the linkage mechanism drives each aileron to rotate and maintains it in a fixed position with the main stirring blade at the first acute angle. The first acute angle is 30~60° to enhance the axial and radial mixing effect of stirring and promote the washing liquid to fully contact and mix with the filter cake. S3. Drying stage: The wet filter cake obtained after washing is placed in the sealed main cylinder of the equipment. Heat medium is introduced into the heating jacket of the equipment and the heating jacket of the chassis. Vacuum is drawn into the main cylinder of the equipment through the air inlet and outlet pipes. During this period, the motor reducer is started to drive the stirring shaft to rotate at low speed. At the same time, the linkage mechanism drives each auxiliary blade to rotate and keep it in a fixed position with the main stirring blade at the second acute angle. The second acute angle is 5~30°. This makes the auxiliary blades loosen and turn the filter cake, break the hard shell formed during the drying process, and promote uniform heating of the material and evaporation of moisture. S4. Discharge stage: After drying is completed, operate the manual discharge device to drive the sealing valve plate to move and release the seal on the discharge port. In a closed state, the dried solid material is discharged from the discharge port on the side of the equipment. S5. Maintenance Stage: After the drying process is completed, operate the manual gear lifting device to raise the stirring shaft and main stirring blades, remove the bolts and nuts of the cylinder flange structure to release the chassis heating jacket from the main cylinder of the equipment, and operate the manual chassis lifting device to lower the chassis heating jacket and chassis filter device. Clean or replace the inside of the main cylinder of the equipment and the chassis filter device.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention uses a rotatable and adjustable auxiliary wing set on the main stirring blade, and the auxiliary wing is linked with the rotation of the stirring shaft. This allows the auxiliary wing to automatically and in different time periods adjust its working angle according to the needs of different process stages such as filtration, washing, and drying during equipment operation. This replaces the traditional method of manually adjusting the stirring blade when the equipment needs to be stopped, and realizes the automatic matching of stirring function and process process, which significantly improves the automation and intelligence level of the equipment. (2) In the filtration stage, the auxiliary wing can be in the form of a scraper that is approximately perpendicular to the main stirring blade, effectively leveling and compacting the filter cake, preventing cracks, and ensuring stable and complete filtration. In the washing stage, the auxiliary wing is adjusted to the first acute angle position, which can enhance fluid turbulence and greatly improve the mixing efficiency and displacement effect of the washing liquid and the filter cake. In the drying stage, the auxiliary wing can be adjusted to the second acute angle state, which is conducive to loosening the material, effectively breaking the hard shell of the dry material, promoting heat and mass transfer, and making the material heated more evenly and thoroughly. Through the dynamic adaptation design of the blade, the fluid movement in each stage of the drying process is optimized, effectively improving the process efficiency of the drying process. (3) By setting up a sealed connection between the main cylinder of the equipment and the heating jacket flange of the chassis and a manual discharge device, the present invention ensures that the material is in a closed environment throughout the filtration, washing, drying and discharge process, which effectively reduces the risk of exposure, contamination or denaturation of toxic, easily oxidized or highly active materials during the processing. It is particularly suitable for occasions with strict requirements for safety and cleanliness in the fields of pharmaceuticals and fine chemicals. (4) By setting up a manual gear lifting device and a manual chassis lifting device, the present invention makes it very convenient to raise, lower and separate the stirring component and the chassis filter device, which facilitates cleaning, inspection or quick replacement of the filter medium inside the main cylinder of the equipment. It combines the advantages of automated intelligent stirring and convenient manual maintenance, enabling the equipment to better adapt to the needs of material changes and complex process changes. Attached Figure Description

[0017] Figure 1 A first-view schematic diagram of the overall structure of a drying device for fine chemical materials; Figure 2 This is a second-view schematic diagram of the overall structure of a drying device for fine chemical materials. Figure 3 A schematic diagram of the overall structure of a drying device for fine chemical materials from a third-person perspective; Figure 4 A schematic diagram of the structure of a manual gear lifting device in a drying process apparatus for fine chemical materials; Figure 5 for Figure 1 A schematic diagram of the decomposed partial structure; Figure 6 for Figure 5 One of the schematic diagrams of the partially decomposed structure; Figure 7 for Figure 5 The second schematic diagram of the decomposed partial structure; Figure 8 for Figure 7 A partial structural diagram after a cross-section; Figure 9 for Figure 8 A schematic diagram of the decomposed partial structure; Figure 10 for Figure 9 A schematic diagram of the decomposed partial structure; Figure 11 for Figure 10 A schematic diagram of the decomposed partial structure; Figure 12 for Figure 11 A schematic diagram of the decomposed partial structure; Figure 13 This is a partial cross-sectional view of a drying device for fine chemical materials.

[0018] In the diagram: 1. Support leg; 2. Main cylinder of the equipment; 3. Agitator shaft; 4. Motor reducer; 5. Main agitator blade; 6. Top plate mounting base; 7. Motor mounting base; 8. Lifting screw; 9. Synchronous shaft; 10. Lifting screw gear; 11. Synchronous shaft gear; 12. Handwheel shaft; 13. Intermediate gear; 14. Handwheel shaft gear; 15. Chassis heating jacket; 16. Chassis filtration device; 17. Drain pipe; 18. Lifting device mounting frame; 19. Chassis lifting screw; 20. Chassis lifting block; 21. Discharge port; 22. Guide rod; 23. Sealing valve plate; 24. Screw connecting block; 25. Guide sleeve; 26. Discharge screw; 27. Feed pipe; 28. Air inlet / outlet pipe; 29. ​​Washing liquid inlet pipe 30. Guide post; 31. Driven gear sleeve; 32. Driven gear shaft; 33. Driven gear; 34. Driven gear; 35. Drive sleeve; 36. Driven gear shaft key; 37. Drive sleeve keyway; 38. Rotating wheel; 39. Stepped groove; 40. Outer ring; 41. Connecting arm; 42. Roller; 43. Axial sliding sleeve; 44. Drive collar; 45. Gear ring bushing; 46. Arc groove; 47. Ball; 48. Gear ring; 49. Aileron shaft; 50. Aileron; 51. Transition shaft; 52. Transition shaft bevel gear; 53. Driven spur gear; 54. Driven spur gear; 55. Axial sliding sleeve keyway; 56. Lower stirring shaft key; 57. Upper stirring shaft key; 58. Driven gear sleeve keyway. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Please see Figure 1-13 As an embodiment of the present invention, a drying device for fine chemical materials includes a main cylinder 2 of the equipment mounted on a support leg 1. The main cylinder 2 is equipped with a feed pipe 27, an air inlet / outlet pipe 28 and a washing liquid inlet pipe 29. The outer wall of the main cylinder 2 is fitted with a heating jacket. The main cylinder 2 is equipped with a stirring mechanism, which includes a stirring shaft 3 and multiple main stirring blades 5. The top of the main cylinder 2 is equipped with a manual gear lifting device that can drive the stirring mechanism to lift as a whole. The bottom of the main cylinder 2 of the equipment is provided with a chassis heating jacket 15, the chassis heating jacket 15 is installed with a chassis filter device 16, the bottom of the chassis heating jacket 15 is installed with a drain pipe 17, and the main cylinder 2 of the equipment is equipped with a manual chassis lifting device that can drive the chassis heating jacket 15, chassis filter device 16, and drain pipe 17 to rise and fall. Manual discharge devices are installed on the two sides of the main cylinder of the equipment to discharge materials in a closed state; Auxiliary blades 50 are rotatably mounted on one side of multiple main stirring blades 5. The auxiliary blades 50 and the stirring shaft 3 are connected by a linkage mechanism, so that when the stirring shaft 3 rotates, it can drive each auxiliary blade 50 to rotate at a specific angle in time intervals to dynamically change the working mode of the auxiliary blades 50.

[0021] In this embodiment, the main cylinder 2 of the equipment is a vertical cylindrical structure. A mechanical seal is provided at the connection point between the stirring shaft 3 and the top of the main cylinder 2 to achieve a dynamic seal at the connection. During use, the material is first added to the main cylinder 2 through the feed pipe 27. During the filtration stage, air is pressurized into the main cylinder 2 through the air inlet and outlet pipes 28. Under high pressure, the material undergoes solid-liquid separation using the chassis filter device 16. When washing is required, the washing liquid is added through the washing liquid inlet pipe 29. During the drying stage, the heating jacket of the equipment and the chassis heating jacket 15 can be heated by introducing a heat medium. The temperature adjustment range can be set according to processing requirements to adapt to different materials. After all the drying processes are completed, the dried material can be discharged in a closed state by operating the manual discharge device. During maintenance, the stirring shaft 3, motor reducer 4, and main stirring blade 5 can be raised as a whole by operating the manual gear lifting device, and the chassis heating jacket 15, chassis filter device 16 and drain pipe 17 can be lowered as a whole by operating the manual chassis lifting device, so as to clean the inside of the main cylinder 2 of the equipment or replace the chassis filter device 16. The chassis filter device 16 has a detachable structure and can be replaced with different specifications of filter media such as filter cloth, filter screen, sintered plate, etc. according to the material particle size and filtration accuracy requirements, so as to adapt to various processing conditions such as solid-liquid separation, clarification filtration, and precision filtration. Auxiliary wing 50 is rotatably mounted on one side of the main stirring blade 5. The auxiliary wing 50 is connected and cooperates with the central stirring shaft 3 through a linkage mechanism. When the motor reducer 4 drives the stirring shaft 3 to rotate, the rotational motion not only drives the main stirring blade 5 to stir, but also drives each auxiliary wing 50 to rotate at a specific angle in a time-sharing and regular manner through the linkage mechanism. Therefore, within one cycle of continuous operation of the stirring shaft 3, the angle between the auxiliary wing 50 and the main stirring blade 5 is not fixed, but can dynamically change according to the specific process. Thus, in different process stages such as filtration, washing, and drying, the stirring system automatically presents different working modes to optimize the fluid dynamics effect at each stage. The whole process does not require manual intervention and is easy to operate with high processing efficiency.

[0022] As a further embodiment of the present invention, the stirring mechanism also includes a motor reducer 4. A motor mounting base 7 is provided on the top of the main cylinder 2 of the equipment. The motor reducer 4 is mounted on the motor mounting base 7. The output end of the motor reducer 4 is connected to a stirring shaft 3 through a coupling. The stirring shaft 3 passes through the top of the main cylinder 2 of the equipment and extends into the interior of the main cylinder 2 of the equipment. A plurality of main stirring blades 5 are installed at the bottom end of the stirring shaft 3. The bottom of the main cylinder 2 of the equipment is detachably connected to the chassis heating jacket 15 through the cylinder flange structure. The chassis filter device 16 is detachably connected to the cylinder flange structure through the lifting eye nut. The side walls of the equipment heating jacket and the chassis heating jacket 15 are provided with heat medium inlets and outlets that can be introduced into steam, hot water or heat transfer oil, so as to realize the heating and temperature control of the side walls and bottom of the main cylinder 2 of the equipment.

[0023] In this embodiment, the heating jacket of the equipment and the heating jacket of the chassis 15 can be circulated with heat medium independently or simultaneously to achieve uniform and all-round heating of the side walls and bottom of the main cylinder 2 of the equipment, effectively solving the problems of uneven temperature and incomplete drying caused by single-point heating.

[0024] As a further embodiment of the present invention, the manual gear lifting device includes a top plate mounting seat 6 installed on the top of the main cylinder 2 of the equipment. Multiple lifting screws 8 are rotatably mounted on the top plate mounting seat 6 and are respectively threaded to the motor mounting seat 7. Synchronous shafts 9 are rotatably mounted on the top plate mounting seat 6 between adjacent lifting screws 8. The synchronous shafts 9 and the lifting screws 8 are driven by a first gear mechanism, so that when one synchronous shaft 9 rotates, it can synchronously drive multiple lifting screws 8 and synchronous shafts 9 to rotate synchronously. A handwheel shaft 12 is installed on the top plate mounting seat 6, and a handwheel shaft gear 14 is installed on the handwheel shaft 12. An intermediate gear 13 that meshes with the handwheel shaft gear 14 is installed on one of the synchronous shafts 9. The first gear mechanism includes a synchronous shaft gear 11 installed at both ends of the synchronous shaft 9 and a lifting screw gear 10 installed on the lifting screw 8 and meshing with the synchronous shaft gear 11.

[0025] In this embodiment, a handwheel is installed on the handwheel shaft 12. Rotating the handwheel drives the handwheel shaft 12 to rotate, which in turn drives the handwheel shaft gear 14 to rotate. Through the intermediate gear 13 meshing with it, a synchronous shaft 9 is driven to rotate. The synchronous shaft gears 11 at both ends of the synchronous shaft 9 rotate synchronously, driving the lifting screw gear 10 meshing with it. This causes multiple lifting screws 8 to rotate synchronously. Since the lifting screws 8 are threadedly connected to the motor mounting base 7, the motor mounting base 7 can only move up and down under the constraint of the lifting screws 8, thereby realizing the synchronous lifting of the motor reducer 4 and the stirring shaft 3 on the motor mounting base 7.

[0026] As a further embodiment of the present invention, a limiting component for the motor mounting base 7 to be raised and lowered is installed on the top plate mounting base 6. The limiting component includes a guide post 30 installed on the top plate mounting base 6, and the guide post 30 is disposed through the motor mounting base 7.

[0027] In this embodiment, the guide post 30 is provided through the guide hole opened on the motor mounting base 7, which constrains the motor mounting base 7 so that it can only move in a straight line in the vertical direction during the lifting process, thereby improving the smoothness and reliability of the lifting process of the motor mounting base 7.

[0028] As a further embodiment of the present invention, the manual chassis lifting device includes a lifting device mounting frame 18 installed on the main cylinder 2 of the equipment, a chassis lifting screw 19 rotatably mounted on the lifting device mounting frame 18, a chassis lifting block 20 installed on the chassis heating jacket 15, and the chassis lifting block 20 being threadedly connected to the chassis lifting screw 19.

[0029] In this embodiment, a handwheel is installed on the chassis lifting screw 19. Rotating the handwheel drives the chassis lifting screw 19 to rotate, and the chassis lifting block 20, which is threadedly connected to the chassis lifting screw 19, performs linear lifting motion, thereby smoothly driving the chassis heating jacket 15, chassis filter device 16 and drain pipe 17 to lift as a whole.

[0030] As a further embodiment of the present invention, the manual discharge device includes a discharge port 21 opened on the main cylinder 2 of the equipment, a guide rod 22 installed on the main cylinder 2 of the equipment, a sealing valve plate 23 slidably disposed on the guide rod 22 and sealingly cooperating with the discharge port 21, and guide sleeves 25 slidably sleeved on the guide rod 22 at both ends of the sealing valve plate 23. The guide rod 22 is equipped with a manual drive device for driving the sealing valve plate 23 to move linearly. The manual drive device includes a screw connecting block 24 installed on the sealing valve plate 23, and a discharge screw 26 that is threadedly connected to the screw connecting block 24 is rotatably installed on the guide rod 22.

[0031] In this embodiment, a handwheel is installed on the discharge screw 26. Rotating the handwheel drives the discharge screw 26 to rotate, and the screw connecting block 24, which is threadedly connected to the discharge screw 26, will move linearly, thereby driving the sealing valve plate 23 to move linearly. When the sealing valve plate 23 moves forward, its end forms a tight planar seal with the discharge port 21, closing the channel of the discharge port 21. When the handwheel is rotated in the opposite direction, the sealing valve plate 23 moves backward, opening the discharge channel of the discharge port 21, and the material can be taken out from the discharge port 21. The guide sleeve 25 and the guide rod 22 slide together to guide the movement of the sealing valve plate 23.

[0032] As a further embodiment of the present invention, the linkage mechanism includes a driving gear sleeve 31 and a driven gear shaft 32 rotatably mounted on the top wall inside the main cylinder 2 of the equipment. The driving gear sleeve 31 is sleeved on the stirring shaft 3 and engages with the stirring shaft 3 through a first keyway structure. The driving gear sleeve 31 and the driven gear shaft 32 are engaged through a second gear mechanism. A driving sleeve 35 is sleeved on the driven gear shaft 32 and engages with the driving sleeve 35 through a second keyway structure. A rotating wheel 38 is mounted on the driving sleeve 35. The rotating wheel 38 has a stepped groove 39, which is a stepped, closed groove with three sections of different depths. An outer ring 40 is sleeved on the stirring shaft 3. A connecting arm 41 is installed, and a roller 42 that slides with a stepped groove 39 is installed at the end of the connecting arm 41. An axial sliding sleeve 43 is rotatably connected to the bottom of the outer ring 40. The axial sliding sleeve 43 is sleeved on the stirring shaft 3 and is engaged with the stirring shaft 3 through a third keyway structure. A drive collar 44 is installed at the bottom end of the axial sliding sleeve 43. A gear ring bushing 45 is rotatably installed on the stirring shaft 3. The drive collar 44 and the gear ring bushing 45 are engaged by a grooving mechanism. When the drive collar 44 moves axially on the gear ring bushing 45, it drives the gear ring bushing 45 to rotate. The gear ring bushing 45 is engaged with multiple ailerons 50 through a third gear mechanism, so that when the gear ring bushing 45 rotates, it drives multiple ailerons 50 to rotate.

[0033] In this embodiment, the stirring shaft 3 rotates, and after being decelerated by the gear pair on the driving gear sleeve 31 and the driven gear shaft 32, it drives the driven gear shaft 32 to rotate. Then, it drives the driving sleeve 35 to rotate, and the rotation of the driving sleeve 35 drives the rotating wheel 38 to rotate. By utilizing the cooperation between the stepped groove 39 and the roller 42, the rotation of the rotating wheel 38 is converted into the reciprocating linear motion of the roller 42 with three different stopping positions. This drives the outer ring 40 to move up and down reciprocally. The outer ring 40 then drives the axial sliding sleeve 43 and the driving ring 44 to move up and down reciprocally. Through the rolling groove cooperation between the driving ring 44 and the gear ring bushing 45, the linear reciprocating motion of the driving ring 44 is converted again into the reciprocating intermittent rotation of the gear ring bushing 45. Finally, this intermittent rotational motion synchronously drives all the ailerons 50 to oscillate periodically through the third gear mechanism, and stabilizes in three specific angular positions in sequence within one cycle. The entire process is realized by the mechanical structure without external control, realizing that the stirring shape of the ailerons 50 changes automatically and regularly with the rotation of the stirring shaft 3.

[0034] As a further embodiment of the present invention, the first keyway structure includes an upper stirring shaft key 57 mounted on the stirring shaft 3 and a driving gear sleeve keyway 58 formed in the inner wall of the driving gear sleeve 31, wherein the upper stirring shaft key 57 and the driving gear sleeve keyway 58 are in sliding engagement. The second keyway structure includes a driven gear shaft key 36 mounted on the driven gear shaft 32 and a drive sleeve keyway 37 opened on the inner wall of the drive sleeve 35. The driven gear shaft key 36 and the drive sleeve keyway 37 are in sliding engagement. The third keyway structure includes a lower stirring shaft key 56 mounted on the stirring shaft 3 and an axial sliding sleeve keyway 55 opened on the inner wall of the axial sliding sleeve 43. The lower stirring shaft key 56 and the axial sliding sleeve keyway 55 are in sliding engagement. The grooving mechanism includes an arcuate groove 46 formed on the gear ring bushing 45 and a ball 47 embedded and engaged in the inner wall of the drive collar 44. The ball 47 slides in conjunction with the arcuate groove 46.

[0035] In this embodiment, the first keyway structure ensures that the torque of the stirring shaft 3 can be transmitted to the driving gear sleeve 31, while the stirring shaft 3 can slide up and down within the driving gear sleeve 31. The second keyway structure ensures that the torque of the driven gear shaft 32 can be transmitted to the driving sleeve 35, while allowing the driving sleeve 35 to float axially relative to the driven gear shaft 32. The third keyway structure ensures that the axial sliding sleeve 43 can rotate synchronously with the stirring shaft 3, while allowing the axial sliding sleeve 43 to move axially up and down on the stirring shaft 3. When the driving collar 44 moves axially on the gear ring sleeve 45, it will drive the gear ring sleeve 45 to rotate through the sliding engagement of the ball 47 and the arc groove 46.

[0036] As a further embodiment of the present invention, the second gear mechanism includes a driving gear 33 mounted on the driving gear sleeve 31 and a driven gear 34 mounted on the driven gear shaft 32, wherein the driving gear 33 meshes with the driven gear 34; The third gear mechanism includes an auxiliary wing shaft 49 rotatably mounted on the main stirring blade 5, an auxiliary wing 50 mounted on the auxiliary wing shaft 49, a transition shaft 51 rotatably mounted on the main stirring blade 5, a driving spur gear 53 mounted on the transition shaft 51, a driven spur gear 54 mounted on the auxiliary wing shaft 49, the driving spur gear 53 meshing with the driven spur gear 54, a gear ring 48 mounted on the gear ring bushing 45, and a transition shaft bevel gear 52 mounted on the transition shaft 51, the gear ring 48 meshing with the transition shaft bevel gear 52.

[0037] In this embodiment, the second gear mechanism reduces the rotational speed from the stirring shaft 3 by one stage and then transmits it to the driven gear shaft 32 to ensure that the frequency of the subsequent aileron 50 oscillation is within a suitable range. When the gear ring bushing 45 rotates, it transmits the intermittent rotational motion of the gear ring bushing 45 to the transition shaft bevel gear 52 on each main stirring blade 5 through the gear ring 48 on it. The transition shaft bevel gear 52 drives the transition shaft 51 to rotate, and then transmits the motion to the aileron shaft 49 through the gear pair between the transition shaft 51 and the aileron shaft 49, thereby driving the aileron 50 to rotate.

[0038] The working principle of this invention is as follows: A mixture of material and liquid is added into the main cylinder 2 of the equipment through the feed pipe 27. Gas is introduced into the main cylinder 2 of the equipment through the air inlet and outlet pipes 28 to pressurize it. Driven by the pressure difference, the liquid passes through the chassis filter device 16 and is discharged out through the drain pipe 17, while the solid is trapped in the main cylinder 2 of the equipment to form a filter cake. The filter cake is then washed. During washing, the washing liquid is added through the washing liquid inlet pipe 29 and mixed with the filter cake. Stirring ensures that the washing liquid and the filter cake are in full contact to remove impurities. Solid-liquid separation is achieved again by passing through the chassis filter device 16. The filter cake is then dried, and the equipment heating jacket and chassis heating jacket are heated. Heating medium is introduced into sleeve 15, and a vacuum is drawn inside the main cylinder 2 of the equipment through inlet and outlet pipes 28. Under the combined action of heating and vacuum, the residual liquid in the filter cake evaporates, achieving drying. After drying, the manual discharge device is operated to open the sealed valve plate 23 on the discharge port 21, and the material is discharged through the discharge port 21. During maintenance, the manual gear lifting device is operated to raise the stirring shaft 3, motor reducer 4, and main stirring blade 5, and the manual chassis lifting device is operated to lower the chassis heating jacket 15 and chassis filter device 16, so as to thoroughly clean the inside of the main cylinder 2 of the equipment or replace the detachable chassis filter device 16.

[0039] The above embodiments are exemplary and not restrictive. Therefore, any technical solutions that can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention are included within the scope of the present invention.

Claims

1. A drying device for fine chemical materials, comprising a main cylinder (2) mounted on a support leg (1), wherein a feed pipe (27), an air inlet / outlet pipe (28), and a washing liquid inlet pipe (29) are mounted on the main cylinder (2), characterized in that, The outer wall of the main cylinder (2) of the equipment is fitted with a heating jacket. The main cylinder (2) of the equipment is equipped with a stirring mechanism, which includes a stirring shaft (3) and multiple main stirring blades (5). The top of the main cylinder (2) of the equipment is equipped with a manual gear lifting device that can drive the stirring mechanism to lift as a whole. The bottom of the main cylinder (2) of the equipment is provided with a chassis heating jacket (15), the chassis heating jacket (15) is equipped with a chassis filter device (16), the bottom of the chassis heating jacket (15) is equipped with a drain pipe (17), and the main cylinder (2) of the equipment is equipped with a manual chassis lifting device that can drive the chassis heating jacket (15), chassis filter device (16), and drain pipe (17) to rise and fall. The main cylinder (2) of the equipment is equipped with a manual discharge device on its side, which is used to discharge materials in a closed state; Auxiliary blades (50) are rotatably mounted on one side of each of the main stirring blades (5). The auxiliary blades (50) are connected to the stirring shaft (3) through a linkage mechanism, so that when the stirring shaft (3) rotates, it can drive each auxiliary blade (50) to rotate at a specific angle in time intervals to dynamically change the working mode of the auxiliary blades (50).

2. The drying apparatus for fine chemical materials according to claim 1, characterized in that, The stirring mechanism also includes a motor reducer (4). A motor mounting base (7) is provided on the top of the main cylinder (2) of the equipment. The motor reducer (4) is installed on the motor mounting base (7). The output end of the motor reducer (4) is connected to a stirring shaft (3) through a coupling. The stirring shaft (3) passes through the top of the main cylinder (2) of the equipment and extends into the interior of the main cylinder (2). Multiple main stirring blades (5) are installed at the bottom end of the stirring shaft (3). The bottom of the main cylinder (2) of the equipment is detachably connected to the chassis heating jacket (15) through the cylinder flange structure. The chassis filter device (16) is detachably connected to the cylinder flange structure through the lifting ring nut. The side walls of the equipment heating jacket and the chassis heating jacket (15) are provided with heat medium inlet and outlet, which are used to realize the heating and temperature control of the side walls and bottom of the main cylinder (2) of the equipment.

3. The drying apparatus for fine chemical materials according to claim 1, characterized in that, The manual gear lifting device includes a top plate mounting seat (6) installed on the top of the main cylinder (2) of the equipment. Multiple lifting screws (8) that are threadedly connected to the motor mounting seat (7) are rotatably mounted on the top plate mounting seat (6). Synchronous shafts (9) that are rotatably mounted on the top plate mounting seat (6) are respectively provided between adjacent lifting screws (8). The synchronous shafts (9) and the lifting screws (8) are driven by a first gear mechanism. A handwheel shaft (12) is installed on the top plate mounting seat (6). A handwheel shaft gear (14) is installed on the handwheel shaft (12). An intermediate gear (13) that meshes with the handwheel shaft gear (14) is installed on one of the synchronous shafts (9). The first gear mechanism includes a synchronous shaft gear (11) installed at both ends of the synchronous shaft (9) and a lifting screw gear (10) installed on the lifting screw (8) and meshing with the synchronous shaft gear (11).

4. The drying apparatus for fine chemical materials according to claim 3, characterized in that, The top plate mounting base (6) is equipped with a limiting component for the motor mounting base (7) during lifting and lowering. The limiting component includes a guide post (30) installed on the top plate mounting base (6) and the guide post (30) passes through the motor mounting base (7).

5. The drying apparatus for fine chemical materials according to claim 1, characterized in that, The manual chassis lifting device includes a lifting device mounting frame (18) installed on the main cylinder (2) of the equipment. A chassis lifting screw (19) is rotatably installed on the lifting device mounting frame (18). A chassis lifting block (20) is installed on the chassis heating jacket (15). The chassis lifting block (20) is threadedly connected to the chassis lifting screw (19).

6. The drying apparatus for fine chemical materials according to claim 1, characterized in that, The manual discharge device includes a discharge port (21) opened on the main cylinder (2) of the equipment. A guide rod (22) is installed on the main cylinder (2). A sealing valve plate (23) that is slidably disposed on the guide rod (22) and seals the discharge port (21) in a sealing fit is provided. Guide sleeves (25) that are slidably sleeved on the guide rod (22) are installed at both ends of the sealing valve plate (23). The guide rod (22) is provided with a manual drive device for driving the sealing valve plate (23) to move linearly. The manual drive device includes a screw connecting block (24) installed on the sealing valve plate (23). The guide rod (22) is rotatably mounted with a discharge screw (26) that is threadedly connected to the screw connecting block (24).

7. The drying apparatus for fine chemical materials according to claim 1, characterized in that, The linkage mechanism includes a drive gear sleeve (31) and a driven gear shaft (32) rotatably mounted on the top wall inside the main cylinder (2) of the equipment. The drive gear sleeve (31) is sleeved on the stirring shaft (3) and is engaged with the stirring shaft (3) through a first keyway structure. The drive gear sleeve (31) and the driven gear shaft (32) are engaged through a second gear mechanism. A drive sleeve (35) is sleeved on the driven gear shaft (32) and is engaged with the drive sleeve (35) through a second keyway structure. A rotating wheel (38) is mounted on the drive sleeve (35). A stepped groove (39) is formed on the rotating wheel (38). The stepped groove (39) is a stepped, closed groove with three sections of different depths. An outer ring (40) is sleeved on the stirring shaft (3). A connecting arm (4) is mounted on the outer ring (40). 1) The end of the connecting arm (41) is equipped with a roller (42) that slides with the stepped groove (39). The bottom of the outer ring (40) is rotatably connected to an axial sliding sleeve (43). The axial sliding sleeve (43) is sleeved on the stirring shaft (3) and is engaged with the stirring shaft (3) through a third keyway structure. The bottom end of the axial sliding sleeve (43) is equipped with a driving collar (44). A gear ring bushing (45) is rotatably mounted on the stirring shaft (3). The driving collar (44) and the gear ring bushing (45) are engaged by a grooving mechanism. When the driving collar (44) moves axially on the gear ring bushing (45), it drives the gear ring bushing (45) to rotate. The gear ring bushing (45) is engaged with multiple ailerons (50) through a third gear mechanism, so that when the gear ring bushing (45) rotates, it drives multiple ailerons (50) to rotate.

8. The drying apparatus for fine chemical materials according to claim 7, characterized in that, The first keyway structure includes an upper stirring shaft key (57) mounted on the stirring shaft (3) and an active gear sleeve keyway (58) opened on the inner wall of the active gear sleeve (31). The upper stirring shaft key (57) and the active gear sleeve keyway (58) are in sliding fit. The second keyway structure includes a driven gear shaft key (36) mounted on the driven gear shaft (32) and a drive sleeve keyway (37) formed on the inner wall of the drive sleeve (35), wherein the driven gear shaft key (36) and the drive sleeve keyway (37) are in sliding engagement; The third keyway structure includes a lower stirring shaft key (56) mounted on the stirring shaft (3) and an axial sliding sleeve keyway (55) formed on the inner wall of the axial sliding sleeve (43). The lower stirring shaft key (56) and the axial sliding sleeve keyway (55) are in sliding fit. The grooving mechanism includes an arcuate groove (46) formed on the gear ring bushing (45) and a ball (47) embedded and engaged with the inner wall of the drive collar (44), wherein the ball (47) slides in cooperation with the arcuate groove (46).

9. The drying apparatus for fine chemical materials according to claim 7, characterized in that, The second gear mechanism includes a driving gear (33) mounted on a driving gear sleeve (31) and a driven gear (34) mounted on a driven gear shaft (32), wherein the driving gear (33) meshes with the driven gear (34); The third gear mechanism includes an auxiliary wing shaft (49) rotatably mounted on the main stirring blade (5), an auxiliary wing (50) mounted on the auxiliary wing shaft (49), a transition shaft (51) rotatably mounted on the main stirring blade (5), a driving spur gear (53) mounted on the transition shaft (51), a driven spur gear (54) mounted on the auxiliary wing shaft (49), the driving spur gear (53) meshing with the driven spur gear (54), a gear ring (48) mounted on the gear ring bushing (45), and a transition shaft bevel gear (52) mounted on the transition shaft (51), the gear ring (48) meshing with the transition shaft bevel gear (52).

10. A method for drying fine chemical materials, using the drying apparatus for fine chemical materials as described in any one of claims 1-9, characterized in that, Includes the following steps: S1, Filtration stage: The mixture of material to be processed and liquid is added into the main cylinder (2) of the equipment through the feed pipe (27). The main cylinder (2) is pressurized by the air inlet and outlet pipes (28). The material is separated into solid and liquid by the chassis filter device (16). During this period, the motor reducer (4) is started to drive the stirring shaft (3) to rotate at low speed. The stirring shaft (3) drives each auxiliary wing (50) to rotate periodically through the linkage mechanism. After the auxiliary wing (50) rotates in the filtration stage, it is in a state of near perpendicularity with the main stirring blade (5), so that the auxiliary wing (50) presents a near scraper shape to scrape and level the filter cake, so that it is evenly compacted on the chassis heating jacket (15) to prevent cracks from forming. S2, Washing stage: Washing liquid is added to the filter cake formed after filtration through the washing liquid inlet pipe (29). The motor reducer (4) is started to drive the stirring shaft (3) to rotate at high speed. At the same time, the linkage mechanism drives each auxiliary blade (50) to rotate and maintains it in a fixed position with the main stirring blade (5) at the first acute angle. The first acute angle is 30~60° to enhance the axial and radial mixing effect of stirring and promote the washing liquid to fully contact and mix with the filter cake. S3, Drying stage: The wet filter cake obtained after washing is placed in the sealed main cylinder (2) of the equipment. Heat medium is introduced into the heating jacket of the equipment and the heating jacket of the chassis (15). Vacuum is drawn inside the main cylinder (2) of the equipment through the air inlet and outlet pipes (28). During this period, the motor reducer (4) is started to drive the stirring shaft (3) to rotate at low speed. At the same time, the linkage mechanism drives each auxiliary wing (50) to rotate and maintain it in a fixed position with the main stirring blade (5) at the second acute angle. The second acute angle is 5~30°, so that the auxiliary wing (50) loosens and turns the filter cake, breaks the hard shell formed during the drying process, and promotes the uniform heating of the material and the evaporation of moisture. S4. Discharge stage: After drying is completed, operate the manual discharge device to drive the sealing valve plate (23) to move and release the seal on the discharge port (21). In a closed state, the dried solid material is discharged from the discharge port (21) on the side of the equipment. S5. Maintenance stage: After the drying process is completed, operate the manual gear lifting device to raise the stirring shaft (3) and the main stirring blade (5), remove the bolts and nuts of the cylinder flange structure to release the chassis heating jacket (15) from the main cylinder (2) of the equipment, and operate the manual chassis lifting device to lower the chassis heating jacket (15) and the chassis filter device (16) to clean or replace the inside of the main cylinder (2) of the equipment and the chassis filter device (16).

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