A wiped film molecular distillation apparatus

Abstract

The application discloses a kind of scraper type thin film molecular distillation equipment, comprising: distillation tank, vibration structure is equipped in distillation tank, vibration structure is as the inner wall of distillation tank, vibration structure is used to reduce material residue;Down pressure structure, down pressure structure is set on vibration structure, down pressure structure is used to drive vibration structure, so that vibration structure can vibrate;Membrane scraping structure, membrane scraping structure is set to the inside of vibration structure, and membrane scraping structure is used to evenly spread material to the inside of vibration structure.The scraper type thin film molecular distillation equipment, membrane scraping structure is elastically matched by compression spring, sliding rod and bearing plate sliding groove, the rotational speed of reducer is adjusted, and the real-time detection of damping sensor to membrane scraping resistance can dynamically adapt different material characteristics, such as viscosity, adjust membrane scraping pressure and speed, realize the uniform controllable of liquid film thickness, effectively solve the problem that evaporation efficiency and separation selectivity are limited due to uneven liquid film of traditional equipment.

Description

Technical Field

[0001] This invention relates to the field of scraped thin film technology, specifically to a scraped thin film molecular distillation device. Background Technology

[0002] In traditional scraped-film molecular distillation equipment, the contact pressure between the scraper and the evaporation surface is usually a fixed value, making it difficult to dynamically adjust according to material characteristics such as viscosity, compositional differences, or process requirements. This easily leads to uneven liquid film thickness distribution, thus affecting evaporation efficiency and separation selectivity. Furthermore, the scraper suffers significant wear after long-term operation, and it is difficult to effectively clean material residues from the evaporation surface, shortening equipment lifespan and reducing separation efficiency. In addition, traditional evaporation surfaces lack a reasonable microstructure design, resulting in limited surface area and uneven liquid film spreading, low evaporation rates, and easy material accumulation on the surface, leading to insufficient molecular evaporation selectivity and limiting separation efficiency.

[0003] From a structural perspective, existing scraped film structures are mostly rigid connections, lacking real-time monitoring and feedback adjustment mechanisms for scraping pressure, making it impossible to precisely control the liquid film thickness. The evaporation surface also lacks a special structural design to promote uniform liquid film spreading, making it difficult to form an efficient evaporation path. Furthermore, in terms of reducing material residue, traditional equipment lacks effective vibration cleaning and other auxiliary structures, allowing residual material to easily adhere to the evaporation surface, further affecting the separation effect and equipment stability in subsequent distillation processes. These problems collectively restrict the performance improvement of scraped film molecular distillation equipment. Therefore, it is urgent to improve the scraping device, evaporation surface structure, and auxiliary functional modules to address the aforementioned technical deficiencies. Summary of the Invention

[0004] The purpose of this invention is to provide a scraped-film molecular distillation apparatus to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a scraped-film molecular distillation apparatus, comprising:

[0006] A distillation tank, wherein a vibration structure is provided inside the distillation tank, the vibration structure serving as the inner wall of the distillation tank, the vibration structure being used to reduce material residue;

[0007] A pressing structure is disposed on the vibrating structure, and the pressing structure is used to drive the vibrating structure so that the vibrating structure can vibrate;

[0008] A scraping structure is provided on the inner side of the vibrating structure, and the scraping structure is used to evenly apply material to the inner side of the vibrating structure;

[0009] A speed reducer is arranged on the film scraping structure, and is used to drive the film scraping structure, one end of the speed reducer is connected with a motor, and the speed reducer can adjust rotating speed.

[0010] Preferably, the film scraping structure comprises a connecting plate arranged at one end of the speed reducer, one side of the connecting plate is connected with a supporting strip, and a bearing plate is further arranged on the connecting plate, a sliding groove and a rotating shaft hole are arranged on the bearing plate, and a rotating shaft is connected with the rotating shaft hole.

[0011] Preferably, the rotating shaft is connected with a connecting block and a scraping plate.

[0012] One side of the connecting block is connected with a pressure resisting plate, and the pressure resisting plate is connected with a pressure resisting spring.

[0013] The other side of the connecting block is connected with a sliding rod, and the sliding rod is inserted into the sliding groove.

[0014] The scraping plate is connected with the pressure resisting spring.

[0015] Preferably, the vibration structure comprises an embedded frame arranged in the distillation tank, a movable plate is connected with the embedded frame, one side of the movable plate is provided with a vibration plate, and the vibration plate is arranged in the embedded frame in a surrounding array.

[0016] A connecting shaft is arranged on the movable plate, and the connecting shaft is used to rotate the movable plate on the embedded frame.

[0017] Preferably, a connecting hole is arranged on the movable plate, and the connecting hole is used to connect with the pressing structure.

[0018] The pressing structure comprises a transmission rod arranged on the connecting hole, the transmission rod is connected with the connecting hole through a rotating shaft, one end of the transmission rod is connected with a first bearing ring, an air pump is arranged on the first bearing ring, and the air pump is used to drive the transmission rod to move.

[0019] Preferably, the other end of the air pump is provided with a second bearing ring, a reset spring is arranged at the bottom of the second bearing ring, a base is arranged at the bottom of the reset spring, and the reset spring is used to reset the transmission rod.

[0020] Preferably, one side of the base is provided with a limiting shell, the limiting shell wraps the second bearing ring and the reset spring, and is used to limit the second bearing ring.

[0021] Preferably, the air pump is at least four, and is arranged in a surrounding array, a fixing ring is arranged at the top of the air pump, and the fixing ring is used to synchronously drive all the air pumps.

[0022] Preferably, a damping sensor is arranged on the speed reducer, and the damping sensor is used for detecting the resistance of the contact between the scraper and the material.

[0023] Preferably, the scraper is an arc-shaped plate, and the scraper does not collide with the vibration structure when the scraper rotates.

[0024] Compared with the prior art, the scraper type thin film molecular distillation equipment has the following beneficial effects: the scraping film structure is elastically matched with the compression spring, the sliding rod and the bearing plate sliding groove, the speed of the speed reducer is adjustable, and the damping sensor is used for real-time detection of the scraping film resistance, so that different material characteristics such as viscosity can be dynamically adapted, the scraping film pressure and speed can be adjusted, the liquid film thickness can be uniformly and controllably realized, the problems of limited evaporation efficiency and separation selectivity caused by uneven liquid film of the traditional equipment are effectively solved; the scraper is designed in an arc shape, and the scraper does not collide with the vibration structure when the scraper rotates, so that the stability and continuity of the scraping film process are ensured; the lower pressing structure drives the transmission rod by using the air pump, drives the movable plate and the vibration plate of the vibration structure to vibrate, cooperates with the scraping of the scraping film structure, and can efficiently remove the material residues on the evaporation surface to avoid the interference of the residues on the separation effect; meanwhile, the rigid wear between the scraping film device and the evaporation surface is reduced, and the overall service life of the equipment is significantly prolonged; the movable plate and the vibration plate of the vibration structure are arranged in a surrounding array on the inner wall of the distillation tank, cooperates with the uniform smearing of the material by the scraping film structure, can maximize the effective evaporation area, promotes the uniform spreading of the liquid film to improve the evaporation rate; the dynamic scraping and vibration cleaning mechanism formed by the cooperation of the structures also helps to build a more optimized evaporation path, further enhances the molecular evaporation selectivity, and improves the separation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 It is a schematic diagram of the scraping film structure of the present application;

[0027] Figure 3 It is a schematic diagram of the structure of the present application Figure 2 without the scraper;

[0028] Figure 4 It is an enlarged schematic diagram of A in the present application Figure 3 ;

[0029] Figure 5 It is a schematic diagram of the structure of the distillation tank of the present application;

[0030] Figure 6 It is an enlarged schematic diagram of B in the present application Figure 5 ;

[0031] Figure 7 It is a schematic diagram of the lower pressing structure of the present application;

[0032] Figure 8 For the invention Figure 7 Enlarged structural diagram at C in the invention;

[0033] Figure 9 For the invention Figure 7 Structural diagram of removing the limiting shell in the invention;

[0034] Figure 10 For the invention Figure 9 Enlarged structural diagram at D in the invention.

[0035] In the figure: 1, distillation tank; 2, speed reducer; 3, down pressure structure; 31, air pump; 32, first bearing ring; 33, transmission rod; 34, second bearing ring; 35, base; 36, reset spring; 37, limiting shell; 4, wiped film structure; 41, connecting plate; 42, support strip; 43, scraper; 44, bearing plate; 441, sliding groove; 45, connecting block; 46, rotating shaft hole; 47, pressure plate; 471, pressure spring; 472, sliding rod; 5, vibration structure; 51, vibration plate; 52, movable plate; 521, connecting hole; 53, embedded frame. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0037] Please refer to Figures 1-10 , the present application provides a technical solution: a scraper type thin film molecular distillation equipment, comprising:

[0038] The distillation tank 1 is used to connect the remaining structure of the device, and the outer side of the distillation tank 1 is provided with a metal plate connected with the connecting frame, which ensures that the distillation device can be fixed, and the bottom of the distillation tank 1 is provided with a connecting head for connecting with the remaining device, and the distillation tank 1 is provided with a vibration structure 5 for vibrating and shaking the residual material on the inner wall of the distillation tank 1, thereby preventing the adhesion of the material, and the vibration structure 5 is used as the inner wall of the distillation tank 1, and the vibration structure 5 is used to reduce the residual material, and the vibration structure 5 comprises an embedded frame 53 arranged in the distillation tank 1, the embedded frame 53 is used to bear a vibration plate 51 and a movable plate 52, the movable plate 52 is connected with the embedded frame 53, one side of the movable plate 52 is provided with the vibration plate 51, the vibration plate 51 is arranged in the embedded frame 53 in a surrounding array, the movable plate 52 is provided with a connecting shaft, the connecting shaft is used to rotate the movable plate 52 on the embedded frame 53, and the movable plate 52 is provided with a connecting hole 521, the connecting hole 521 is used to connect with the pressing structure 3, when the pressing structure 3 drives the movable plate 52 to move up and down, the movable plate 52 is driven to vibrate up and down through the vibration plate 51, so as to achieve the vibration effect.

[0039] The distillation tank 1 is used to connect the remaining structure of the device, and the outer side of the distillation tank 1 is provided with a metal plate connected with the connecting frame, which ensures that the distillation device can be fixed, and the bottom of the distillation tank 1 is provided with a connecting head for connecting with the remaining device, and the distillation tank 1 is provided with a vibration structure 5 for vibrating and shaking the residual material on the inner wall of the distillation tank 1, thereby preventing the adhesion of the material, and the vibration structure 5 is used as the inner wall of the distillation tank 1, and the vibration structure 5 is used to reduce the residual material, and the vibration structure 5 comprises an embedded frame 53 arranged in the distillation tank 1, the embedded frame 53 is used to bear a vibration plate 51 and a movable plate 52, the movable plate 52 is connected with the embedded frame 53, one side of the movable plate 52 is provided with the vibration plate 51, the vibration plate 51 is arranged in the embedded frame 53 in a surrounding array, the movable plate 52 is provided with a connecting shaft, the connecting shaft is used to rotate the movable plate 52 on the embedded frame 53, and the movable plate 52 is provided with a connecting hole 521, the connecting hole 521 is used to connect with the pressing structure 3, when the pressing structure 3 drives the movable plate 52 to move up and down, the movable plate 52 is driven to vibrate up and down through the vibration plate 51, so as to achieve the vibration effect.

[0040] The lower pressing structure 3 is arranged on the vibration structure 5, and is used to drive the vibration structure 5. The lower pressing structure 3 is used to drive the movable plate 52 to move on the embedded frame 53, so that the vibration structure 5 can vibrate. The lower pressing structure 3 comprises a transmission rod 33 arranged on the connecting hole 521. The transmission rod 33 is connected with the connecting hole 521 through a rotating shaft. One end of the transmission rod 33 is connected with a first bearing ring 32. The number of the transmission rod 33 is consistent with the number of the array of the vibration plate 51. The first bearing ring 32 is used to connect the ends of all the transmission rods 33. The first bearing ring 32 drives the transmission rod 33 to move downward collectively under the driving of the air pump 31. The air pump 31 is arranged on the first bearing ring 32 and is used to drive the transmission rod 33 to move. The other end of the air pump 31 is provided with a second bearing ring 34. The bottom of the second bearing ring 34 is provided with a reset spring 36. The bottom of the reset spring 36 is provided with a base 35. When the transmission rod 33 moves downward, the reset spring 36 is extruded through the second bearing ring 34. Then the reset spring 36 is reset upward, and the second bearing ring 34 drives the transmission rod 33 to reset upward. The air pump 31 is lifted upward, so that the reset effect is achieved. The reset spring 36 is used to reset the transmission rod 33. One side of the base 35 is provided with a limiting shell 37. The second bearing ring 34 and the reset spring 36 are wrapped by the limiting shell 37. In this way, when the second bearing ring 34 moves downward, deviation does not occur, and only moves upward and downward on the inside of the limiting shell 37. The limiting shell 37 is used to limit the second bearing ring 34. The air pump 31 is at least four. The air pump 31 is arranged in a surrounding array. The top of the air pump 31 is provided with a fixed ring. The fixed ring is used to synchronously drive all the air pumps 31. The four air pumps 31 can simultaneously press downward on the four sides of the first bearing ring 32. When the first bearing ring 32 is pressed downward, the first bearing ring 32 does not tilt.

[0041] The lower pressing structure 3 is arranged on the vibration structure 5. When the lower pressing structure 3 works, the fixed ring at the top of the air pump 31 synchronously drives at least four air pumps 31 arranged in a surrounding array, so that the air pump 31 simultaneously presses downward on the four sides of the first bearing ring 32, and the first bearing ring 32 does not tilt. The first bearing ring 32 drives the transmission rod 33 with the number consistent with the number of the array of the vibration plate 51 to move downward collectively. The transmission rod 33 is connected with the connecting hole 521 of the movable plate 52 through a rotating shaft, and drives the movable plate 52 to move on the embedded frame 53. When the transmission rod 33 moves downward, the reset spring 36 arranged on the base 35 is extruded through the second bearing ring 34. When the air pump 31 is lifted upward, the reset spring 36 rebounds upward, drives the second bearing ring 34 and the transmission rod 33 to reset upward, and realizes the up-and-down reciprocating movement of the transmission rod 33. At the same time, the limiting shell 37 on one side of the base 35 wraps the second bearing ring 34 and the reset spring 36, limits the second bearing ring 34, ensures that the second bearing ring 34 only moves upward and downward on the inside of the limiting shell 37 without deviation, and finally drives the vibration structure 5 to vibrate through the movement of the transmission rod 33.

[0042] In the vibration structure 5, the embedded frame 53 bears the vibration plate 51 and the movable plate 52, the movable plate 52 rotates on the embedded frame 53 through the connecting shaft, and the upper connecting hole 521 is connected with the pressing structure 3; when the pressing structure 3 works, the top fixed ring of the air pump 31 synchronously drives at least four air pumps 31 in a surrounding array, simultaneously presses down the four sides of the first bearing ring 32, the first bearing ring 32 drives the transmission rod 33 consistent with the array number of the vibration plate 51 to move downward, the transmission rod 33 is connected with the connecting hole 521 of the movable plate 52 through the rotating shaft, drives the movable plate 52 to move on the embedded frame 53, and further drives the vibration plate 51 in a surrounding array to fan up and down; when the transmission rod 33 moves downward, the second bearing ring 34 extrudes the reset spring 36 on the base 35, when the air pump 31 lifts up, the reset spring 36 rebounds to reset the transmission rod 33, the limiting shell 37 on one side of the base 35 limits the second bearing ring 34 to prevent deviation, and finally the vibration structure 5 shakes to shake off the residual material on the surface of the self as the inner wall of the distillation tank 1, and prevents the material from adhering.

[0043] The film scraping structure 4 is arranged on the inner side of the vibration structure 5, and is used for uniformly spreading the material to the inner side of the vibration structure 5. The film scraping structure 4 comprises a connecting plate 41 arranged at one end of the speed reducer 2, the connecting plate 41 and the supporting strip 42 are combined to form a rotating frame, the connecting plate 41 is used for connecting with the speed reducer 2, the film scraping structure 4 is driven by a motor, one side of the connecting plate 41 is connected with the supporting strip 42, the connecting plate 41 further has a bearing plate 44, the bearing plate 44 is used for bearing a compression plate 47 and a scraping plate 43, the bearing plate 44 is provided with a sliding groove 441 and a rotating shaft hole 46, the sliding groove 441 is used for limiting the compression plate 47, the rotating shaft hole 46 is connected with a rotating shaft, the rotating shaft is connected with a connecting block 45 and the scraping plate 43, so that the compression plate 47 and the scraping plate 43 rotate, the rotation is driven by the centrifugal force generated by the rotation of the connecting plate 41 and the supporting strip 42 driven by the motor, when the material is too hard, the motor can be accelerated to rotate, so that the scraping plate 43 rotates outwardly together with the compression plate 47, the sliding rod 472 moves to the outer side of the sliding groove 441, the scraping plate 43 is an arc plate, when the scraping plate 43 rotates, the scraping plate 43 does not collide with the vibration structure 5, after the arc-shaped scraping plate 43 contacts with the material, the scraping plate 43 moves backward after being resisted by the material, so as to be supported by the compression spring 471, the scraping plate 43 is effectively protected, and the scraping operation on the material is not affected, one side of the connecting block 45 is connected with the compression plate 47, the compression plate 47 is connected with the compression spring 471, the other side of the connecting block 45 is connected with the sliding rod 472, the sliding rod 472 is inserted into the sliding groove 441, and the scraping plate 43 is connected with the compression spring 471.

[0044] The scraping film structure 4 is arranged in the inside of the vibrating structure 5, and is driven by the motor to rotate the connecting plate 41 through the speed reducer 2, so that the rotating frame composed of the connecting plate 41 and the supporting strip 42 rotates; the load bearing plate 44 on the connecting plate 41 bears the compression plate 47 and the scraping plate 43, the rotating shaft fixedly connected with the connecting block 45 in the rotating shaft hole 46 and the scraping plate 43, so that they can rotate under the centrifugal force generated by the rotating frame; when the material is too hard, the centrifugal force can be increased by accelerating the motor to drive the scraping plate 43 and the compression plate 47 to rotate outward, so that the sliding rod 472 on the other side of the connecting block 45 moves to the outer end in the sliding groove 441 of the load bearing plate 44; the arc-shaped scraping plate 43 does not collide with the vibrating structure 5 when rotating, and moves backward under the resistance after contacting the material, and the supporting force of the compression spring 471 protects the scraping plate 43 and does not affect the scraping operation of the scraping plate 43 on the material, so that the material is finally evenly coated to the inside of the vibrating structure 5.

[0045] The speed reducer 2 is arranged on the scraping film structure 4, and is used for driving the scraping film structure 4; one end of the speed reducer 2 is connected with the motor, the speed reducer 2 can adjust the rotating speed, and the speed reducer 2 is provided with a damping sensor for detecting the resistance when the scraping plate 43 contacts the material.

[0046] The speed reducer 2 is arranged on the scraping film structure 4, and is connected with the motor at one end to drive the scraping film structure 4 by receiving the power transmitted by the motor; at the same time, the speed reducer 2 can adjust the output rotating speed according to the actual working condition to adapt to the scraping film demand of different materials; in addition, the damping sensor arranged on the speed reducer 2 can detect the resistance generated when the scraping plate 43 contacts the material in real time, so as to provide a basis for adjusting the rotating speed, so as to ensure that the scraping film structure 4 can work stably and efficiently under different resistance conditions.

[0047] When the scraping membrane structure 4 works with the speed reducer 2, the motor provides power, and the speed reducer 2 connected at one end receives power to drive the scraping membrane structure 4 to operate. The speed reducer 2 can adjust the output speed according to the actual working condition, and the damping sensor arranged thereon can detect the resistance of the scraper 43 in contact with the material in real time to provide a basis for speed adjustment. In the scraping membrane structure 4, the speed reducer 2 drives the connecting plate 41 to rotate, so that the rotating frame composed of the connecting plate 41 and the support strip 42 rotates. The load-bearing plate 44 on the connecting plate 41 bears the pressure plate 47 and the scraper 43. The rotating shaft in the rotating shaft hole 46 is fixedly connected with the scraper 43. The two rotate with the centrifugal force generated by the rotating frame. When the damping sensor detects that the material resistance is large, such as the material is too hard, the speed reducer 2 can adjust the speed to increase the centrifugal force to drive the scraper 43 and the pressure plate 47 to rotate outward, so that the sliding rod 472 on the other side of the connecting block 45 moves to the outer end in the sliding groove 441 of the load-bearing plate 44. The arc-shaped scraper 43 does not collide with the vibration structure 5 when rotating, moves backward after contacting the material under resistance, and the supporting force of the compression spring 471 protects the scraper 43 and does not affect the scraping operation, so that the material is finally uniformly applied to the inside of the vibration structure 5.

[0048] When the scraping membrane structure 4 works with the speed reducer 2, the motor provides power, and the speed reducer 2 connected at one end receives power to drive the scraping membrane structure 4 to operate. The speed reducer 2 can adjust the output speed according to the actual working condition, and the damping sensor arranged thereon can detect the resistance of the scraper 43 in contact with the material in real time to provide a basis for speed adjustment. In the scraping membrane structure 4, the speed reducer 2 drives the connecting plate 41 to rotate, so that the rotating frame composed of the connecting plate 41 and the support strip 42 rotates. The load-bearing plate 44 on the connecting plate 41 bears the pressure plate 47 and the scraper 43. The rotating shaft in the rotating shaft hole 46 is fixedly connected with the scraper 43. The two rotate with the centrifugal force generated by the rotating frame. When the damping sensor detects that the material resistance is large, such as the material is too hard, the speed reducer 2 can adjust the speed to increase the centrifugal force to drive the scraper 43 and the pressure plate 47 to rotate outward, so that the sliding rod 472 on the other side of the connecting block 45 moves to the outer end in the sliding groove 441 of the load-bearing plate 44. The arc-shaped scraper 43 does not collide with the vibration structure 5 when rotating, moves backward after contacting the material under resistance, and the supporting force of the compression spring 471 protects the scraper 43 and does not affect the scraping operation, so that the material is finally uniformly applied to the inside of the vibration structure 5.

[0049] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be made without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. An wiped thin-film molecular distillation apparatus, characterized in that, Include: Distillation tank (1), the distillation tank (1) is provided with vibration structure (5), the vibration structure (5) as the inner wall of the distillation tank (1), the vibration structure (5) is used to reduce material residue; The lower structure (3) is arranged on the vibration structure (5), the lower structure (3) is used to drive the vibration structure (5), so that the vibration structure (5) can vibrate; The membrane scraping structure (4) is arranged on the inner side of the vibration structure (5), the membrane scraping structure (4) is used to evenly spread the material to the inner side of the vibration structure (5); The reducer (2) is arranged on the membrane scraping structure (4), the reducer (2) is used to drive the membrane scraping structure (4), one end of the reducer (2) is connected with the motor, and the reducer (2) can adjust the rotating speed; The membrane scraping structure (4) comprises a connecting plate (41) arranged at one end of the reducer (2), one side of the connecting plate (41) is connected with a supporting strip (42), the connecting plate (41) further has a bearing plate (44), the bearing plate (44) is provided with a sliding groove (441) and a rotating shaft hole (46), and the rotating shaft hole (46) is connected with a rotating shaft; The rotating shaft is connected with a connecting block (45) and a scraper (43); One side of the connecting block (45) is connected with a pressure resisting plate (47), and the pressure resisting plate (47) is connected with a pressure resisting spring (471); The other side of the connecting block (45) is connected with a sliding rod (472), and the sliding rod (472) is inserted into the sliding groove (441); The scraper (43) and the pressure resisting spring (471) are connected.

2. A wiped thin film molecular distillation apparatus according to claim 1, characterized in that: The vibration structure (5) comprises an embedded frame (53) arranged in the distillation tank (1), the embedded frame (53) is connected with a movable plate (52), one side of the movable plate (52) is provided with a vibration plate (51), and the vibration plate (51) is arranged in the embedded frame (53) in a surrounding array; The movable plate (52) is provided with a connecting shaft, and the connecting shaft is used to rotate the movable plate (52) on the embedded frame (53).

3. A wiped thin film molecular distillation apparatus according to claim 2, wherein: The movable plate (52) is provided with a connecting hole (521), and the connecting hole (521) is used to connect with the lower structure (3); The lower structure (3) comprises a transmission rod (33) arranged on the connecting hole (521), the transmission rod (33) is connected with the connecting hole (521) through a rotating shaft, one end of the transmission rod (33) is connected with a first bearing ring (32), the first bearing ring (32) is provided with a gas pump (31), and the gas pump (31) is used to drive the transmission rod (33) to move.

4. A wiped film molecular distillation apparatus according to claim 3, wherein: The other end of the gas pump (31) is provided with a second bearing ring (34), the bottom of the second bearing ring (34) is provided with a reset spring (36), the bottom of the reset spring (36) is provided with a base (35), and the reset spring (36) is used to reset the transmission rod (33).

5. A wiped thin film molecular distillation apparatus according to claim 4, wherein: One side of the base (35) is provided with a limiting shell (37), the limiting shell (37) wraps the second bearing ring (34) and the reset spring (36), for limiting the second bearing ring (34).

6. A wiped thin film molecular distillation apparatus according to claim 3 or 4, characterised in that: The air pump (31) is at least four, arranged in a surrounding array, the top of the air pump (31) is provided with a fixed ring, the fixed ring is used for synchronous driving all the air pump (31).

7. A wiped thin film molecular distillation apparatus according to claim 1, wherein: The reducer (2) is provided with a damping sensor, and the damping sensor is used for detecting the resistance of the contact between the scraper (43) and the material.

8. A wiped thin film molecular distillation apparatus according to claim 1 or 7, characterised in that: The scraper (43) is an arc-shaped plate, when the scraper (43) rotates, no conflict with the vibration structure (5) occurs.

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