Multifunctional drying machine and drying method thereof

Abstract

The invention belongs to the technical field of drying machines, and particularly relates to a multifunctional drying machine and a drying method thereof. A stirring mechanism, a filtering mechanism and a heating mechanism comprising a jacket assembly mounted on the surface of the tank body, a first heating assembly mounted in the stirring mechanism and a second heating assembly mounted at the bottom of the filtering mechanism are mounted in the tank body, and the stirring mechanism is connected with a driving mechanism for driving the stirring mechanism to rotate forwards and backwards; the filtering mechanism is located below the stirring mechanism, a vacuumizing opening is formed in the tank body, the vacuumizing opening is connected with a vacuumizing mechanism, and a washing spray head is installed in the tank body; by arranging the filtering mechanism, the washing nozzle and the heating mechanism in the tank body, the drying machine can filter, wash and dry materials at the same time, the treatment efficiency is greatly improved, the energy consumption is greatly reduced, the whole process is carried out in the tank body, powder can be prevented from being transferred, and the risk of pollution to the powder or environmental protection is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of dryers, and in particular relates to a multifunctional dryer and a drying method thereof. Background Art

[0002] With the continuous advancement of science and technology and the rapid development of the pharmaceutical industry, the quality and production efficiency of drugs have become the focus of pharmaceutical companies. Powders, as an important dosage form of drugs, are widely used in the production of raw materials, traditional Chinese medicines, biological products and preparations. In the powder manufacturing process, the drying process is one of the key steps to ensure the quality and stability of drugs.

[0003] Traditional drying equipment often has a single function and cannot meet the needs of modern pharmaceutical companies for high efficiency, energy saving, and environmental protection. For example, filtering, washing, and drying of powders often need to be carried out in different equipment, which not only leads to a more complicated process and high energy consumption, but also poses a risk of contamination to the powder or the environment during the powder transfer process. Summary of the invention

[0004] The purpose of the present invention is to provide a multifunctional dryer and a drying method thereof in order to solve the above-mentioned technical problems, so as to achieve the goal of filtering, washing and drying in the same device, effectively improve the processing efficiency and reduce energy consumption, and avoid the transfer of powder, thereby causing the risk of powder or environmental pollution.

[0005] In view of this, the present invention provides a multifunctional drying machine, comprising:

[0006] The tank body is provided with a feed inlet and a discharge outlet;

[0007] A stirring mechanism is installed in the tank;

[0008] A driving mechanism is installed on the tank body and is used to drive the stirring mechanism to rotate forward and reverse;

[0009] The filtering mechanism is installed in the tank body and is located below the stirring mechanism;

[0010] The heating mechanism comprises a jacket assembly installed on the surface of the tank body, a first heating assembly installed in the stirring mechanism, and a second heating assembly installed at the bottom of the filtering mechanism;

[0011] A vacuum port is provided on the tank body, and the vacuum port is connected to a vacuum mechanism, and a washing nozzle is installed in the tank body.

[0012] In the above technical solution, further, the stirring mechanism includes:

[0013] The drive shaft is installed in the tank body and has a hollow structure inside, and extends out of the tank body to be transmission-connected with the output end of the drive mechanism;

[0014] The stirring rod is installed at one end of the driving shaft located inside the tank body and is S-shaped;

[0015] The discharge port is arranged on the side wall of the tank body close to the filtering mechanism.

[0016] In the above technical solution, further, it also includes:

[0017] The first lifting mechanism is installed on the tank body and is used to drive the driving shaft to rise and fall.

[0018] In the above technical solution, further, the first heating component includes:

[0019] The corrugated tube body is sleeved on the surface of the driving shaft located inside the tank body and forms a first heating chamber between the corrugated tube body and the driving shaft;

[0020] Wherein, a mechanical seal is adopted between the driving shaft and the tank body, and a hot water supply unit is connected via a rotary joint, and is used to connect the hot water supply unit and the first heating chamber.

[0021] In the above technical solution, further, the filtering mechanism includes:

[0022] A filter plate is installed in the tank and is located below the stirring mechanism;

[0023] The support plate is installed in the tank body and is located below the filter plate, and a filter cavity is formed between the support plate and the filter plate;

[0024] A second heating chamber is formed between the support plate and the inner wall of the tank body, and the second heating chamber is connected to the hot water supply unit.

[0025] In the above technical solution, further, it also includes:

[0026] The chassis is installed at the bottom of the tank body and is detachably connected to the tank body, and a sealing member is provided between the chassis and the tank body;

[0027] The second lifting mechanism is installed on the side of the tank body and is used to drive the chassis to rise and fall;

[0028] Wherein, the filter plate and the support plate are both installed on the chassis.

[0029] The present invention provides a drying method of a multifunctional drying machine, comprising the following steps:

[0030] S1: inject the material to be processed into the tank through the feed port until the set amount is reached;

[0031] S2: nitrogen is introduced into the tank to pressurize or filter, and the material is filtered through the filtering mechanism;

[0032] S3: Turn on the washing nozzle to inject washing water into the tank until the set amount is reached;

[0033] S4: The first lifting mechanism drives the driving shaft to lift and lower back and forth, and at the same time, the driving mechanism drives the stirring rod to rotate forward;

[0034] S5: lift the stirring rod to discharge the filtrate through the filter plate;

[0035] S6: Repeat S4-S5 until the material washing meets the requirements;

[0036] S7: Slowly lower the stirring rod to make it fit the upper end surface of the material, and reverse the stirring rod to level the material. After the material is leveled, slightly lift the stirring rod;

[0037] S8: inject hot water into the jacket assembly, the first heating assembly and the second heating assembly to heat and dry the material, and lower the stirring rod to get close to the material and rotate it forward at a slow speed;

[0038] S9: sampling through the sampling port, and judging whether to continue drying or complete drying through sampling;

[0039] S10: After drying is completed, stop injecting hot water, introduce cooling water, lower the stirring rod close to the material and rotate it forward slowly;

[0040] S11: Inject nitrogen to balance the pressure inside and outside the tank, and discharge the material through the discharge port after the tank reaches normal pressure.

[0041] In the above technical solution, further:

[0042] In S1, the stirring rod is in the high position or low position and rotates forward at a low speed.

[0043] In the above technical solution, further:

[0044] At the beginning of S8 and S11, the tank body is vacuumed, and the pressure is balanced through the balance pipe on the upper and lower sides of the filter plate.

[0045] In the above technical solution, further:

[0046] The stirring rods are first rotated slowly and then approached to the material, and at the same time are first lifted away from the material and then stopped.

[0047] The beneficial effects of the present invention are:

[0048] 1. By arranging a filtering mechanism in the tank body for filtering, a washing nozzle for washing, and a heating mechanism for heating and drying, the dryer can filter, wash and dry the material at the same time, which greatly improves the processing efficiency and reduces energy consumption. The whole process is carried out in the tank body, which can avoid the transfer of powder and the risk of pollution to the powder or the environment. The driving mechanism drives the stirring mechanism, and the vacuum mechanism vacuums the tank body, which can further improve the processing efficiency and improve the product quality of the powder.

[0049] 2. By heating the surface of the tank, the inside of the stirring mechanism and the bottom of the filtering mechanism, the heating efficiency and uniformity of the powder can be improved, thereby improving the product quality.

[0050] 3. The first lifting mechanism lifts the drive shaft and the second lifting mechanism lifts the chassis on which the filter plate and the support plate are installed, which can improve the uniformity of material mixing and facilitate the cleaning of residual materials on the filter plate.

[0051] 4. Through the above drying method, the filtering, washing and drying effects of the material can be guaranteed, thereby ensuring the product quality of the material, and the processing effect and processing efficiency are high and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the structure of the present invention;

[0053] Figure 2 The present invention Figure 1 The enlarged view of point A in the middle;

[0054] Figure 3 is a side view of the filter of the present invention;

[0055] Figure 4 The present invention Figure 3 Cross-sectional view of the middle BB;

[0056] Figure 5 is an exploded view of the filter of the present invention;

[0057] The markings in the figure are as follows: 1. tank body; 2. feed inlet; 3. discharge outlet; 4. stirring mechanism; 40. drive shaft; 41. stirring rod; 5. driving mechanism; 6. filtering mechanism; 60. filter plate; 61. support plate; 62. filter chamber; 63. chassis; 64. second lifting mechanism; 7. jacket assembly; 8. first heating assembly; 80. bellows body; 81. first heating chamber; 82. rotary joint; 9. second heating chamber; 10. vacuum port; 11. washing nozzle; 12. first lifting mechanism; 13. cylinder body; 14. connecting pipe; 15. mounting groove; 16. fixing ring; 17. vent; 18. filter screen; 19. fixing block; 20. block; 21. top column; 22. slide plate; 23. slide groove; 24. pull rod; 25. limit plate; 26. cover body; 27. limit protrusion; 28. spring; 29. ​​rubber gasket. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0059] Embodiment 1:

[0060] This embodiment provides a multifunctional drying machine, comprising:

[0061] The tank body 1 is provided with a feed inlet 2 and a discharge outlet 3;

[0062] A stirring mechanism 4 is installed in the tank body 1;

[0063] The driving mechanism 5 is installed on the tank body 1 and is used to drive the stirring mechanism 4 to rotate forward and reverse;

[0064] The filtering mechanism 6 is installed in the tank body 1 and is located below the stirring mechanism 4;

[0065] The heating mechanism comprises a jacket assembly 7 installed on the surface of the tank body 1, a first heating assembly 8 installed in the stirring mechanism 4, and a second heating assembly installed at the bottom of the filtering mechanism 6;

[0066] The tank body 1 is provided with a vacuum port 10, and the vacuum port 10 is connected to a vacuum mechanism, and a washing nozzle 11 is installed in the tank body 1;

[0067] At the same time, the driving mechanism 5 can adopt a motor, and the specific structure of the motor, the vacuuming mechanism and the washing nozzle 11 is an existing mature technology and will not be repeated here.

[0068] It can be seen from the present embodiment that by arranging a filtering mechanism 6 for filtering, a washing nozzle 11 for washing, and a heating mechanism for heating and drying in the tank body 1, the dryer can simultaneously filter, wash, and dry the material, which greatly improves the processing efficiency and reduces energy consumption. The entire process is carried out in the tank body 1, which can avoid the transfer of the powder and the risk of pollution to the powder or the environment. The driving mechanism 5 drives the stirring mechanism 4, and the vacuum mechanism vacuums the tank body 1, which can further improve the processing efficiency and improve the product quality of the powder.

[0069] Embodiment 2:

[0070] This embodiment provides a multifunctional dryer, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the stirring mechanism 4 includes:

[0071] The drive shaft 40 is installed in the tank body 1 and has a hollow structure inside. It extends out of the tank body 1 and is transmission-connected to the output end of the drive mechanism 5.

[0072] The stirring rod 41 is installed at one end of the driving shaft 40 located in the tank body 1 and is S-shaped;

[0073] The discharge port 3 is opened on the side wall of the tank body 1 close to the filtering mechanism 6;

[0074] At the same time, the surfaces of the stirring rod 41 in both the positive and reverse stirring directions along the circumference are both inclined surfaces, and the angles between the surfaces and the bottom surface are acute.

[0075] It can be seen from the present embodiment that by driving the driving shaft 40 to rotate the stirring rod 41, the uniformity of the distribution of the material in the tank body 1 can be improved, and the efficiency and effect of filtering, washing and drying can be improved. In addition, the stirring rod 41 is S-shaped, and the discharge port 3 is opened on the side wall of the tank body 1, which can improve the discharge efficiency of the material through the stirring rod 41.

[0076] Embodiment 3:

[0077] This embodiment provides a multifunctional dryer, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including:

[0078] The first lifting mechanism 12 is installed on the tank body 1 and is used to drive the driving shaft 40 to move up and down;

[0079] The first lifting mechanism 12 may adopt a hydraulic cylinder, and its specific structure is prior art and will not be described in detail here.

[0080] It can be seen from this embodiment that the lifting and lowering of the driving shaft 40 by the first lifting mechanism 12 can further improve the uniformity of material stirring and improve the efficiency and effect of filtering, washing and drying.

[0081] Embodiment 4:

[0082] This embodiment provides a multifunctional dryer, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the first heating component 8 includes:

[0083] The bellows body 80 is sleeved on the surface of the driving shaft 40 located inside the tank body 1, and forms a first heating chamber 81 between the bellows body 80 and the driving shaft 40;

[0084] Among them, a mechanical seal is adopted between the driving shaft 40 and the tank body 1, and a hot water supply unit is connected through a rotary joint 82, and is used to connect the hot water supply unit and the first heating chamber 81;

[0085] At the same time, the hollow structure inside the drive shaft 40 is a double-layer structure, and the first heating chamber 81 is connected through the hollow structure inside the stirring shaft, and the hot water enters the stirring shaft through the rotary joint 82, and then is diverted to the first heating chamber 81 and then discharged from the rotary joint 82 to form a circulating flow. The specific structure is the existing technology and will not be repeated here.

[0086] It can be seen from the present embodiment that by adopting the bellows body 80 as the outer surface of the first heating chamber 81, the contact area between the first heating chamber 81 and the material can be effectively increased, thereby improving the heat transfer efficiency, and the setting of the bellows body 80 can be extended and retracted when the drive shaft 40 is raised and lowered, so that the first heating chamber 81 can be deformed following the rise and fall of the drive shaft 40, thereby avoiding the first heating chamber 81 affecting the rise and fall of the drive shaft 40.

[0087] Embodiment 5:

[0088] This embodiment provides a multifunctional dryer, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the filter mechanism 6 includes:

[0089] The filter plate 60 is installed in the tank body 1 and is located below the stirring mechanism 4;

[0090] The support plate 61 is installed in the tank body 1 and is located below the filter plate 60, and a filter cavity 62 is formed between the support plate 61 and the filter plate 60;

[0091] A second heating chamber 9 is formed between the support plate 61 and the inner wall of the tank body 1, and the second heating chamber 9 is connected to the hot water supply unit;

[0092] Meanwhile, the filter plate 60 is a sintered filter plate, and the specific material thereof is determined according to different materials to be processed, which is a conventional choice and will not be described in detail here.

[0093] It can be seen from this embodiment that by setting the filter chamber 62 between the filter plate 60 and the support plate 61, the discharge efficiency of the filtrate can be improved when filtering the material, and the second heating chamber 9 can improve the uniform heating of the material at the bottom of the tank body 1, thereby improving the drying efficiency and drying effect.

[0094] Embodiment 6:

[0095] This embodiment provides a multifunctional dryer, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including:

[0096] The chassis 63 is installed at the bottom of the tank body 1 and is detachably connected to the tank body 1, and a sealing member is provided between the chassis 63 and the tank body 1;

[0097] The second lifting mechanism 64 is installed on the side of the tank body 1 and is used to drive the chassis 63 to rise and fall;

[0098] Wherein, the filter plate 60 and the support plate 61 are both mounted on the chassis 63;

[0099] At the same time, the detachable connection between the chassis 63 and the tank body 1 can be connected by a hook, and the sealing member is made of rubber material, and the specific structure is the existing technology, so as to achieve the sealing between the chassis 63 and the tank body 1, which will not be repeated here;

[0100] Furthermore, the second lifting mechanism 64 may adopt a hydraulic cylinder, and its specific structure is an existing mature technology and will not be described in detail here.

[0101] It can be seen from this embodiment that the second lifting mechanism 64 lifts and lowers the chassis 63 on which the filter plate 60 and the support plate 61 are installed, so as to facilitate the cleaning of residual materials on the filter plate 60 and avoid residual materials on the filter plate 60, thereby affecting the quality of the subsequent dried material products.

[0102] Embodiment 7:

[0103] This embodiment provides a multifunctional dryer, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including:

[0104] A filter is installed at the vacuum port 10 of the tank body 1 and is used to block the material during vacuuming;

[0105] The filters include:

[0106] The cylinder 13 is connected to the vacuum port 10 through a connecting pipe 14, and the inner wall of one end close to the connecting pipe 14 is tapered, and a mounting groove 15 is opened on the inner wall parallel to the axial direction;

[0107] A fixing ring 16 is installed in the cylinder 13 and a vent hole 17 is formed at the axis;

[0108] The filter screen 18 is mounted on a side of the fixing ring 16 close to the tank body 1;

[0109] A fixing block 19 is fixed in the mounting groove 15 and is used to lock the fixing ring 16 in the axial direction, and a clamping block 20 is formed at one end away from the fixing ring 16;

[0110] The top column 21 is axially slidably installed in the cylinder 13, and one end close to the fixed part is hemispherical, and the other end is provided with a slide plate 22, and a slide groove 23 slidably connected to the fixed block 19 is provided on the slide plate 22, and the clamping block 20 is used to limit the highest moving position of the slide plate 22;

[0111] The pull rod 24 is axially arranged on the slide plate 22, and a limit plate 25 is arranged at one end away from the slide plate 22;

[0112] The cover 26 is mounted on the end of the cylinder 13 away from the connecting pipe 14, and has a limiting protrusion 27 formed radially on the surface of the pull rod 24, and is used to abut against the limiting plate 25 in one direction and limit the axial movement of the top column 21;

[0113] The spring 28 is installed between the cover plate and the slide plate 22 and is used to push the top column 21 axially to move toward the filter screen 18 when no vacuum is drawn;

[0114] The filter screen 18 forms a first arc surface at the vent hole 17 when the vacuum is applied, and forms a second arc surface in the opposite direction of the first arc surface in the axial direction under the action of the top column 21 when the vacuum is not applied.

[0115] At the same time, a rubber gasket 29 is provided on one side of the limiting plate 25 close to the annular protrusion and on one side of the sliding plate 22 close to the fixing ring 16 .

[0116] It can be seen from this embodiment that the filter can be set to block floating materials during vacuuming, effectively reducing the materials from being drawn to the vacuum pump during vacuuming, thereby reducing the service life of the vacuum pump.

[0117] At the same time, the top column 21 follows the opening and closing of the vacuum pump to push the filter 18 and cause it to deform, which can effectively prevent materials from accumulating on the surface of the filter 18, effectively extend the service life of the filter, and avoid clogging during vacuum pumping. When the filter 18 is vacuum pumped, a first curved surface is formed at the vent 17, which can effectively increase the filtration area, ensure the air flow, and reduce the impact of filtration on the vacuum pumping efficiency. When the vacuum pump is not pumped, under the action of the top column 21, a second curved surface is formed in the opposite axial direction to the first curved surface, thereby effectively ensuring that the materials that may be accumulated on the filter 18 are efficiently shaken off, effectively improving the cleaning effect of the filter 18 and extending the service life.

[0118] In addition, the spring 28 is provided, and the side of the limit plate 25 close to the annular protrusion and the side of the slide plate 22 close to the fixing ring 16 are all provided with rubber washers 29. After the vacuuming is stopped, the vacuuming port 10 can be closed, thereby reducing the vacuum degree in the tank body 1 affected by leakage in the external pipeline of the tank body 1, thereby ensuring the control of the vacuum. In addition, the spring 28 can also push the top column 21 to clean the filter screen 18 when the suction force decreases due to the accumulation of materials on the filter screen 18 at the vent hole 17 and is less than the reset force of the spring 28, thereby effectively ensuring the self-cleaning effect, further extending the maintenance cycle, and extending the service life.

[0119] Embodiment 8:

[0120] This embodiment provides a drying method of a multifunctional drying machine, comprising the following steps:

[0121] S1: inject the material to be processed into the tank body 1 through the feed port 2 until the set amount is reached;

[0122] S2: nitrogen is introduced into the tank body 1 to pressurize or filter, and the material is filtered through the filtering mechanism 6;

[0123] S3: Turn on the washing nozzle 11 to inject washing water into the tank body 1 until the set amount is reached;

[0124] S4: The first lifting mechanism 12 drives the driving shaft 40 to lift and reciprocate, and at the same time the driving mechanism 5 drives the stirring rod 41 to rotate forward;

[0125] S5: lifting the stirring rod 41 to discharge the filtrate through the filter plate 60;

[0126] S6: Repeat S4-S5 until the material washing meets the requirements;

[0127] S7: Slowly lower the stirring rod 41 to make it fit the upper end surface of the material, and reverse the stirring rod 41 to level the material. After the material is leveled, slightly lift the stirring rod 41;

[0128] S8: inject hot water into the jacket assembly 7, the first heating assembly 8 and the second heating assembly to heat and dry the material, and lower the stirring rod 41 to get close to the material and rotate it forward at a slow speed;

[0129] S9: sampling through the sampling port, and judging whether to continue drying or complete drying through sampling;

[0130] S10: After drying is completed, stop injecting hot water, introduce cooling water, lower the stirring rod 41 to get close to the material and rotate it forward slowly;

[0131] S11: Inject nitrogen to balance the pressure inside and outside the tank body 1, and discharge the material through the discharge port 3 after the pressure inside the tank body 1 reaches normal pressure;

[0132] S12: After the discharge is completed, the tank body 1 is cleaned by the washing nozzle 11, and the washing water is discharged after the cleaning is completed. At the same time, the bottom basin is lowered to clean the surface of the filter plate 60 on the bottom basin.

[0133] Among them, in S1, the stirring rod 41 is in a high position or a low position and rotates forward at a low speed;

[0134] At the beginning of S8 and S11, the tank body 1 is vacuumed, and the pressure is balanced through the balance pipe on the upper and lower sides of the filter plate 60;

[0135] The stirring rod 41 first rotates slowly and then approaches the material, and at the same time is first lifted away from the material and then stops.

[0136] It can be seen from this embodiment that the above drying method can ensure the effects of filtering, washing and drying the material, thereby ensuring the product quality of the material, and the treatment effect and treatment efficiency are high and the operation is simple;

[0137] Furthermore, in S1, if the stirring rod 41 is in a low position and rotates forward at a low speed, the distribution uniformity of the material injected into the tank body 1 can be improved;

[0138] The vacuuming operation in the tank body 1 in S8 can reduce the evaporation temperature of the material solvent, and at the same time reduce the heating temperature required for drying, reduce energy consumption, and the pressure difference generated can drive the evaporated solvent to be quickly extracted, which can effectively improve the drying efficiency. The vacuuming operation in the tank body 1 at the beginning of S11 can quickly extract the heat and hot air, which has the effect of accelerating cooling;

[0139] At the same time, the pressure on the upper and lower sides of the filter plate 60 is balanced by a balance pipe, which can reduce the impact of vacuum on the filter plate 60 and improve safety;

[0140] In addition, the stirring rod 41 first rotates slowly and then approaches the material, and then stops after it separates from the material. This can prevent the material from accumulating on the stirring rod 41, and further prevent blockage when the stirring rod 41 starts to rotate or stops, thereby avoiding affecting the normal operation of the equipment and protecting the stirring rod 41 and the equipment, thereby extending the service life of the equipment.

[0141] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A multifunctional dryer, characterized in that: include: The tank body (1) is provided with a feed inlet (2) and a discharge outlet (3); A stirring mechanism (4) is installed in the tank body (1); A driving mechanism (5) is mounted on the tank body (1) and is used to drive the stirring mechanism (4) to rotate forward and reverse; A filtering mechanism (6) is installed in the tank body (1) and is located below the stirring mechanism (4); The heating mechanism comprises a jacket assembly (7) installed on the surface of the tank body (1), a first heating assembly (8) installed in the stirring mechanism (4), and a second heating assembly installed at the bottom of the filtering mechanism (6); The tank body (1) is provided with a vacuum port (10), the vacuum port (10) is connected to a vacuum mechanism, and a washing nozzle (11) is installed in the tank body (1).

2. The multifunctional dryer according to claim 1, characterized in that: The stirring mechanism (4) comprises: The drive shaft (40) is installed in the tank body (1) and has a hollow structure inside. It extends out of the tank body (1) and is drivingly connected to the output end of the drive mechanism (5); A stirring rod (41) is mounted on one end of the driving shaft (40) located inside the tank body (1) and is S-shaped; Wherein, the discharge port (3) is opened on the side wall of the tank body (1) close to the filtering mechanism (6).

3. The multifunctional dryer according to claim 2, characterized in that: Also includes: The first lifting mechanism (12) is installed on the tank body (1) and is used to drive the driving shaft (40) to move up and down.

4. The multifunctional dryer according to claim 3, characterized in that: The first heating component (8) comprises: The bellows body (80) is sleeved on the surface of the drive shaft (40) located inside the tank body (1), and forms a first heating chamber (81) between the bellows body and the drive shaft (40); A mechanical seal is used between the drive shaft (40) and the tank body (1), and a rotary joint (82) is provided to connect the hot water supply unit and the first heating chamber (81).

5. The multifunctional dryer according to claim 4, characterized in that: The filtering mechanism (6) comprises: A filter plate (60) is installed in the tank body (1) and is located below the stirring mechanism (4); A support plate (61) is installed in the tank body (1) and is located below the filter plate (60), and a filter cavity (62) is formed between the support plate (61) and the filter plate (60); Wherein, the second heating assembly comprises a second heating chamber (9) formed between the support plate (61) and the inner wall of the tank body (1), and the second heating chamber (9) is connected to the hot water supply unit.

6. The multifunctional dryer according to claim 5, characterized in that: Also includes: A chassis (63) is mounted on the bottom of the tank body (1) and is detachably connected to the tank body (1), and a sealing member is provided between the chassis and the tank body (1); A second lifting mechanism (64) is installed on the side of the tank body (1) and is used to drive the chassis (63) to rise and fall; Wherein, the filter plate (60) and the support plate (61) are both installed on a chassis (63).

7. A drying method applied to the multifunctional dryer according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: injecting the material to be processed into the tank (1) through the feed port (2) until the set amount is reached; S2: nitrogen is introduced into the tank body (1) to pressurize or filter the tank body (1) and the material is filtered through the filtering mechanism (6); S3: opening the washing nozzle (11) to inject washing water into the tank (1) until a set amount is reached; S4: the first lifting mechanism (12) drives the driving shaft (40) to lift and reciprocate, and at the same time the driving mechanism (5) drives the stirring rod (41) to rotate forward; S5: lifting the stirring rod (41) to discharge the filtrate through the filter plate (60); S6: Repeat S4-S5 until the material washing meets the requirements; S7: Slowly lower the stirring rod (41) to make it fit the upper end surface of the material, and reverse the stirring rod (41) to level the material. After the material is leveled, slightly lift the stirring rod (41); S8: injecting hot water into the jacket assembly (7), the first heating assembly (8) and the second heating assembly to heat and dry the material, and lowering the stirring rod (41) to be close to the material and rotating it forward at a slow speed; S9: sampling through the sampling port, and judging whether to continue drying or complete drying through sampling; S10: After drying is completed, stop injecting hot water, introduce cooling water, lower the stirring rod (41) close to the material and rotate it forward slowly; S11: Nitrogen is injected to balance the pressure inside and outside the tank body (1), and after the pressure inside the tank body (1) reaches normal pressure, the material is discharged through the discharge port (3).

8. The drying method of the multifunctional dryer according to claim 7, characterized in that: In S1, the stirring rod (41) is in a high position or a low position and rotates forward at a low speed.

9. The drying method of the multifunctional dryer according to claim 7, characterized in that: At the beginning of S8 and S11, the tank body (1) is vacuumed, and the pressure is balanced on the upper and lower sides of the filter plate (60) through a balance pipe.

10. The drying method of the multifunctional dryer according to claim 7, characterized in that: The stirring rod (41) is first rotated at a slow speed and then approaches the material, and at the same time is first lifted and separated from the material and then stops.

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