Distillation recovery device for producing lubricating oil

Abstract

The utility model relates to the technical field of lubricating oil production, and discloses a distillation recovery device for producing lubricating oil, which comprises a distillation box, a stirring mechanism for stirring the lubricating oil is arranged on the inner side of the distillation box, and a recovery mechanism for cooling gaseous lubricating oil is further arranged on the outer side of the distillation box. When the device is used, a user can heat materials in the distillation box through the electric heating plate and then distill the materials in the distillation box under the cooperation of the stirring mechanism, and gaseous lubricating oil after distillation can be conveyed into the recycling box through the air pump. Then, a user can recycle gaseous lubricating oil through the recycling mechanism, so that the inner wall of the distillation box can be cleaned by utilizing the stirring mechanism after distillation while the materials are stirred, the practicability of the stirring mechanism is improved, the problem of material caking is avoided, and the service life of the distillation box is prolonged. And the recovery effect and the recovery efficiency of the lubricating oil can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lubricating oil production, and in particular to a distillation recovery device for producing lubricating oil. Background Art

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the role of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering. As long as it is used between two relatively moving objects and can reduce the friction and wear caused by the contact between the two objects, it is a lubricating oil. Distillation is a thermodynamic separation process. It uses the different boiling points of components in a mixed liquid or liquid-solid system to evaporate the low-boiling point component and then condense it to separate the entire component. It is a unit operation process. It is a combination of evaporation and condensation unit operations. When producing lubricating oil, a distillation unit for lubricating oil production is required.

[0003] The Chinese utility model patent with application number: CN202120980048.9 discloses a distillation device for lubricating oil production, which includes a distillation box, both sides of the inner cavity of the distillation box are fixedly connected with electric heating layers, the electric heating wires are arranged inside the electric heating layers, a pressure sensor is fixedly installed on the upper section of one side of the inner cavity of the distillation box, and a temperature sensor is fixedly connected to the upper section of the distillation box away from the pressure sensor. One side of the top of the distillation box is connected to a pressure relief pipe, and the circumference of the pressure relief pipe is fixedly sleeved with a pressure relief solenoid valve, and the top of the distillation box and one side close to the pressure relief pipe are connected to a feed pipe. The utility model has a novel structure, simplifies the work procedures of the staff, improves the production efficiency of lubricating oil, and improves the practicality of the device.

[0004] When the above technical solution is in use, since its electric heating layer is distributed inside the distillation box, it will come into direct contact with the material. This will cause part of the material in contact with the electric heating layer to agglomerate on the inner side of the electric heating layer when the material is heated, and thus adhere to the electric heating layer, thereby affecting the distillation effect of the material. The stirring device provided can only stir the material but cannot achieve other functions, resulting in low functionality. Moreover, since the cooling pipes provided are distributed on the outside of the collecting box and there are gaps between adjacent cooling pipes, although it can achieve cooling and condensation of gaseous lubricating oil, its cooling effect and efficiency on the gaseous lubricating oil are low, thereby affecting the recovery effect and efficiency of the lubricating oil. Utility Model Content

[0005] The purpose of the utility model is to provide a distillation recovery device for producing lubricating oil, so as to solve the problem that when the above technical solution is in use, since its electric heating layer is distributed inside the distillation box, it will directly contact with the material, which will cause part of the material in contact with the electric heating layer to agglomerate on the inner side of the electric heating layer when the material is heated, and thus adhere to the electric heating layer, thereby affecting the distillation effect of the material, and the stirring device set therein can only stir the material but cannot realize other functions, resulting in its low functionality, and since the cooling pipes set therein are distributed on the outside of the collecting box, although it can realize the cooling and condensation of the gaseous lubricating oil, its cooling effect and efficiency on the gaseous lubricating oil are low, thereby affecting the problem of limited recovery effect and efficiency of the lubricating oil.

[0006] The utility model provides the following technical solution: a distillation recovery device for producing lubricating oil, comprising a distillation box, a controller is fixedly connected to the outside of the distillation box, a discharge pipe is fixedly connected to the bottom of the distillation box, a feed pipe is fixedly connected to the top of the distillation box, a stirring mechanism for stirring the lubricating oil is arranged on the inside of the distillation box, and a recovery mechanism for cooling the gaseous lubricating oil is also arranged on the outside of the distillation box.

[0007] As a preferred embodiment of the above technical solution, a pressure relief pipe is fixedly connected to the top of the distillation box, a pressure relief solenoid valve is fixedly connected to the top of the pressure relief pipe, a temperature sensor and a pressure sensor are also fixedly connected to the inner wall of the distillation box, an installation groove is opened on the inner side of the distillation box, and an electric heating plate is installed on the inner side of the installation groove.

[0008] As a preferred embodiment of the above technical solution, the stirring mechanism includes a motor fixedly connected to the top of the distillation box, the output shaft of the motor passes through the distillation box and is fixedly connected to a stirring shaft with spiral blades on the surface, the outside of the stirring shaft is fixedly connected to three fixed cylinders, the inner side of the fixed cylinder is fixedly connected to a spring, the end of the spring away from the fixed cylinder is fixedly connected to a slide plate, the outside of the slide plate is fixedly connected to a support rod, and the end of the support rod away from the slide plate is fixedly connected to a scraper, the user can pour the material into the distillation box through the feed pipe, and then the material in the distillation box can be heated by the electric heating plate, and the motor can be started at the same time, the motor drives the stirring shaft to rotate, the rotation of the stirring shaft drives the fixed cylinder to rotate, and the rotation of the fixed cylinder will drive the support rod and the slide plate to move under the action of centrifugal force. The movement of the skateboard will squeeze the spring, and the movement of the support rod will drive the scraper to move. When the scraper moves to a certain position, it will contact the inner wall of the distillation box. Then the scraper, fixed cylinder and stirring shaft will stir the material, thereby realizing the distillation of the material with the cooperation of the electric heating plate, and the scraper can scrape off the material attached to the distillation box, thereby improving the distillation effect. When the distillation box needs to be cleaned, the user can pour the detergent into the distillation box through the feed pipe, and then clean the distillation box through the stirring mechanism, thereby realizing heating and stirring of the material, and cleaning the distillation box through the stirring mechanism, thereby improving the convenience of use, and the electric heating plate will not directly contact the material, thereby avoiding the problem of material agglomeration.

[0009] As a preferred embodiment of the above technical solution, the stirring shaft is distributed on the inner side of the distillation box, the three fixed cylinders are fixedly connected to the outer side of the stirring shaft, and the three fixed cylinders are respectively distributed between adjacent blades of the spiral blade, and the specifications and sizes of the three fixed cylinders are the same.

[0010] As a preferred embodiment of the above technical solution, there are three springs, three slide plates and three support rods, one end of the three springs are fixedly connected to the inner side of the fixed cylinder, and the other ends of the three springs are respectively fixedly connected to the three slide plates, the three slide plates are respectively distributed on the inner sides of the three fixed cylinders, one end of the three support rods are respectively fixedly connected to the outer sides of the three slide plates, and the other ends of the three support rods pass through the three fixed cylinders and are fixedly connected to the outer sides of the scrapers, and the height of the scrapers is adapted to the inner height of the distillation box.

[0011] As a preferred embodiment of the above technical solution, the recovery mechanism includes an exhaust pipe fixedly connected to the top of the distillation box, an air pump is fixedly installed on the exhaust pipe, a connecting pipe is fixedly connected to the top of the air pump, the outer end of the connecting pipe is fixedly connected to a recovery box, a water cavity is opened on the inner side of the recovery box, a cylinder is fixedly connected to the outer side of the recovery box, a connecting plate is fixedly connected to the output shaft of the cylinder, a box cover is fixedly connected to the inner side of the connecting plate, a collecting box is fixedly connected to the inner side of the box cover, a support plate is fixedly connected to the bottom of the recovery box, the bottom of the support plate is fixedly connected to a water tank, the outside of the water tank is connected to a water pump, the outside of the water pump is fixedly connected to a water inlet pipe, and the side of the water tank away from the water pump is fixedly connected to a water outlet pipe. When in use, the user can heat and distill the material through the electric heating plate and the stirring mechanism, and then pump the water tank The cold water in the water is transported to the water cavity in the recovery box through the connecting pipe and the water inlet pipe, and then transported to the water tank again through the water outlet pipe. Then, with the operation of the water pump, a circulating water supply effect is achieved. Then, the gaseous lubricant can be transported to the recovery box through the exhaust pipe and the connecting pipe by the air pump. At this time, the cold water in the water cavity can cool and shape the gaseous lubricating oil in the recovery box. After that, the lubricating oil will fall into the collection box. The user can start the cylinder to drive the connecting plate and the box cover to move, and then take the collection box out of the recovery box, so as to recycle the lubricating oil in the collection box. While realizing the recycling of the gaseous lubricating oil, the setting of the water cavity greatly increases the contact area with the gaseous lubricating oil, thereby improving the cooling effect and efficiency of the gaseous lubricating oil, and thus improving the recycling effect.

[0012] As a preferred embodiment of the above technical solution, the connecting pipe is connected to the recycling box, and a rubber sealing ring is also provided on the inner side of the box cover. The length, width and height of the rubber sealing ring are adapted to the length, width and height of the inner side of the recycling box. The collection boxes are distributed on the inner side of the recycling box. A connecting pipe is fixedly connected to the outer side of the water tank. The end of the connecting pipe away from the water tank is connected to the water pump. The water pump is fixedly connected to the bottom of the support plate. The end of the water inlet pipe away from the water pump is connected to the water cavity. The end of the water outlet pipe away from the water tank is connected to the water cavity. A filling pipe for filling cold water is also provided on the outer side of the water tank.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is provided with a distillation box, a stirring mechanism and a recovery mechanism. When in use, the user can discharge the material to be distilled into the distillation box through the feed pipe, and then the material in the distillation box can be heated through the electric heating plate, and then the material in the distillation box can be distilled with the cooperation of the stirring mechanism, and the gaseous lubricating oil after distillation can be transported to the recovery box through the air pump, and then the user can transport the cold water in the water tank to the water cavity in the recovery box through the water pump, at this time, the cooling effect of the gaseous lubricating oil can be improved, and then the gaseous lubricating oil can be condensed and formed, so as to recover the lubricating oil, when the distillation box needs to be cleaned, the user can scrape the agglomerated material attached to the inner wall of the distillation box through the stirring mechanism, and then the distillation box can be discharged through the discharge pipe, so that the material can be stirred at the same time, and the inner wall of the distillation box can be cleaned by the stirring mechanism after the distillation is completed, so as to improve the practicality of the stirring mechanism, and the electric heating plate will not directly contact with the material, so as to avoid the problem of material agglomeration, and the water cavity can greatly improve the cooling effect of the gaseous material, so as to improve the recovery effect and recovery efficiency of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a distillation recovery device for producing lubricating oil from a first perspective;

[0016] Figure 2 A schematic diagram of a distillation recovery device for producing lubricating oil from a second perspective;

[0017] Figure 3 It is a schematic side cross-sectional view of the overall structure of a distillation recovery device for producing lubricating oil;

[0018] Figure 4 A schematic diagram of a distillation recovery device for producing lubricating oil from a third perspective;

[0019] Figure 5 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0021] In the figure: 1. distillation box; 2. controller; 3. discharge pipe; 4. feed pipe; 5. pressure relief pipe; 6. pressure relief solenoid valve; 7. mounting groove; 8. electric heating plate; 11. motor; 12. stirring shaft; 13. fixed cylinder; 14. spring; 15. slide plate; 16. support rod; 17. scraper; 21. exhaust pipe; 22. air pump; 23. connecting pipe; 24. recovery box; 25. water cavity; 26. cylinder; 27. connecting plate; 28. box cover; 29. ​​collection box; 210. support plate; 211. water tank; 212. water pump; 213. water inlet pipe; 214. water outlet pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] Embodiment 1

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a technical solution: a distillation recovery device for producing lubricating oil, comprising a distillation box 1, a controller 2 is fixedly connected to the outside of the distillation box 1, a discharge pipe 3 is fixedly connected to the bottom of the distillation box 1, a feed pipe 4 is fixedly connected to the top of the distillation box 1, a stirring mechanism for stirring the lubricating oil is arranged on the inside of the distillation box 1, a recovery mechanism for cooling the gaseous lubricating oil is also arranged on the outside of the distillation box 1, a pressure relief pipe 5 is fixedly connected to the top of the distillation box 1, a pressure relief solenoid valve 6 is fixedly connected to the top of the pressure relief pipe 5, and a temperature control valve 6 is fixedly connected to the inner wall of the distillation box 1. A temperature sensor and a pressure sensor are provided, and an installation groove 7 is opened on the inner side of the distillation box 1. An electric heating plate 8 is installed on the inner side of the installation groove 7, so that when in use, the user can pour the material into the distillation box 1 through the feeding pipe 4, and then start the electric heating plate 8 to heat the material in the distillation box 1, and the temperature sensor in the distillation box 1 can detect the temperature in the distillation box 1 in real time, and the pressure sensor can detect the pressure in the distillation box in real time, so that the user can release the pressure in the distillation box 1 in time through the controller 2, the pressure relief solenoid valve 6 and the pressure relief pipe 5, so as to facilitate actual use.

[0025] It should be noted that the air pump 22, water pump 212 and motor 11 are all electrically connected to the controller 2. The air pump 22, controller 2, pressure relief pipe 5, pressure relief solenoid valve 6, temperature sensor, pressure sensor, electric heating plate 8 in this application are the same as the specifications, models, connection methods and functions of the air pump, controller, pressure relief pipe, pressure relief solenoid valve, temperature sensor, pressure sensor, and electric heating layer in the distillation device for lubricating oil production in the comparative document CN202120980048.9. Since the comparative document has been described in detail, it will not be elaborated on.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the stirring mechanism includes a motor 11 fixedly connected to the top of the distillation box 1, the output shaft of the motor 11 passes through the distillation box 1 and is fixedly connected to a stirring shaft 12 with spiral blades on the surface, the outside of the stirring shaft 12 is fixedly connected to three fixed cylinders 13, the inner side of the fixed cylinder 13 is fixedly connected to a spring 14, the end of the spring 14 away from the fixed cylinder 13 is fixedly connected to a slide plate 15, the outside of the slide plate 15 is fixedly connected to a support rod 16, and the end of the support rod 16 away from the slide plate 15 is fixedly connected to a scraper 17, the stirring shaft 12 is distributed on the inner side of the distillation box 1, the three fixed cylinders 13 are fixedly connected to the outer side of the stirring shaft 12, and the three fixed cylinders 13 are fixedly connected to the outer side of the stirring shaft 12. The cylinders 13 are respectively distributed between adjacent blades of the spiral blade, the three fixed cylinders 13 have the same specifications and sizes, there are three springs 14, three slide plates 15 and three support rods 16, one end of the three springs 14 is fixedly connected to the inner side of the fixed cylinder 13, and the other ends of the three springs 14 are respectively fixedly connected to the three slide plates 15, the three slide plates 15 are respectively distributed on the inner sides of the three fixed cylinders 13, one end of the three support rods 16 is respectively fixedly connected to the outer sides of the three slide plates 15, and the other ends of the three support rods 16 pass through the three fixed cylinders 13 and are fixedly connected to the outer sides of the scrapers 17, and the height of the scrapers 17 is adapted to the inner height of the distillation box 1.

[0027] Through the above technical solution, when in use, the user can pour the material into the distillation box 1 through the feed pipe 4, and then the material in the distillation box 1 can be heated through the electric heating plate 8, and the motor 11 can be started at the same time. The motor 11 drives the stirring shaft 12 to rotate, and the rotation of the stirring shaft 12 drives the fixed cylinder 13 to rotate. The rotation of the fixed cylinder 13 will drive the support rod 16 and the slide plate 15 to move under the action of centrifugal force. The movement of the slide plate 15 will squeeze the spring 14, and the movement of the support rod 16 will drive the scraper 17 to move. The scraper 17 moves to a certain position and contacts the inner wall of the distillation box 1. Then the scraper 17, the fixed cylinder 13 and The stirring shaft 12 will stir the material, thereby realizing distillation of the material with the cooperation of the electric heating plate 8, and the scraper 17 can scrape off the material attached to the distillation box 1, thereby improving the distillation effect. When the distillation box 1 needs to be cleaned, the user can pour the cleaning agent into the distillation box 1 through the feed pipe 4, and then clean the distillation box 1 through the stirring mechanism, thereby realizing heating and stirring of the material, and cleaning the distillation box 1 through the stirring mechanism, thereby improving the convenience of use, and the electric heating plate 8 will not directly contact the material, thereby avoiding the problem of material agglomeration.

[0028] Embodiment 2

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, the utility model provides a technical solution: a distillation recovery device for producing lubricating oil, comprising a distillation box 1, a controller 2 is fixedly connected to the outside of the distillation box 1, a discharge pipe 3 is fixedly connected to the bottom of the distillation box 1, a feed pipe 4 is fixedly connected to the top of the distillation box 1, a stirring mechanism for stirring the lubricating oil is arranged on the inner side of the distillation box 1, and a recovery mechanism for cooling the gaseous lubricating oil is also arranged on the outer side of the distillation box 1, the recovery mechanism comprises an exhaust pipe 21 fixedly connected to the top of the distillation box 1, an air pump 22 is fixedly installed on the exhaust pipe 21, a connecting pipe 23 is fixedly connected to the top of the air pump 22, a recovery box 24 is fixedly connected to the outer end of the connecting pipe 23, a water cavity 25 is opened on the inner side of the recovery box 24, a cylinder 26 is fixedly connected to the outer side of the recovery box 24, a connecting plate 27 is fixedly connected to the output shaft of the cylinder 26, a box cover 28 is fixedly connected to the inner side of the connecting plate 27, a collecting box 29 is fixedly connected to the inner side of the box cover 28, and a recovery box 24 is fixedly connected to the outer end of the box cover 28. The bottom of the collection box 24 is fixedly connected with a support plate 210, the bottom of the support plate 210 is fixedly connected with a water tank 211, the outside of the water tank 211 is connected with a water pump 212, the outside of the water pump 212 is fixedly connected with a water inlet pipe 213, the side of the water tank 211 away from the water pump 212 is fixedly connected with a water outlet pipe 214, the connecting pipe 23 is connected with the collection box 24, and the inner side of the box cover 28 is also provided with a rubber sealing ring, the length, width and height of the rubber sealing ring are the same as the length of the inner side of the collection box 24 , width and height are adapted, the collecting box 29 is distributed on the inner side of the recovery box 24, the outer side of the water tank 211 is fixedly connected with a connecting pipe, the end of the connecting pipe away from the water tank 211 is connected to the water pump 212, the water pump 212 is fixedly connected to the bottom of the support plate 210, the end of the water inlet pipe 213 away from the water pump 212 is connected to the water cavity 25, the end of the water outlet pipe 214 away from the water tank 211 is connected to the water cavity 25, and a filling pipe for filling cold water is also provided on the outer side of the water tank 211.

[0030] Through the above technical solution, when in use, the user can heat and distill the material through the electric heating plate 8 and the stirring mechanism, and then the cold water in the water tank 211 is transported to the water cavity 25 in the recovery box 24 through the water pump 212 through the connecting pipe and the water inlet pipe 213, and then transported to the water tank 211 again through the water outlet pipe 214. Then, with the operation of the water pump 212, a circulating water supply effect is achieved. Then, the gaseous lubricant can be transported to the recovery box 24 through the exhaust pipe 21 and the connecting pipe 23 through the air pump 22. At this time, the lubricant in the water cavity 25 Cold water can cool and shape the gaseous lubricating oil in the recovery box 24, and then the lubricating oil will fall into the collection box 29. The user can start the cylinder 26 to drive the connecting plate 27 and the box cover 28 to move, and then take the collection box 29 out of the recovery box 24, so as to recycle the lubricating oil in the collection box 29, thereby realizing the recovery of the gaseous lubricating oil. At the same time, the setting of the water cavity 25 greatly increases the contact area with the gaseous lubricating oil, thereby improving the cooling effect and efficiency of the gaseous lubricating oil, and then improving the recovery effect.

[0031] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A distillation recovery device for producing lubricating oil, comprising a distillation box (1), a controller (2) fixedly connected to the outside of the distillation box (1), a discharge pipe (3) fixedly connected to the bottom of the distillation box (1), and a feed pipe (4) fixedly connected to the top of the distillation box (1), characterized in that: The inside of the distillation box (1) is provided with a stirring mechanism for stirring the lubricating oil, and the outside of the distillation box (1) is also provided with a recovery mechanism for cooling the gaseous lubricating oil; The recovery mechanism comprises an exhaust pipe (21) fixedly connected to the top of the distillation box (1), an air pump (22) fixedly mounted on the exhaust pipe (21), a connecting pipe (23) fixedly connected to the top of the air pump (22), a recovery box (24) fixedly connected to the outer end of the connecting pipe (23), a water cavity (25) formed on the inner side of the recovery box (24), a cylinder (26) fixedly connected to the outer side of the recovery box (24), a connecting plate (27) fixedly connected to the output shaft of the cylinder (26), and the connecting plate A box cover (28) is fixedly connected to the inner side of the box cover (27), a collection box (29) is fixedly connected to the inner side of the box cover (28), a support plate (210) is fixedly connected to the bottom of the recovery box (24), a water tank (211) is fixedly connected to the bottom of the support plate (210), a water pump (212) is fixedly connected to the outside of the water tank (211), a water inlet pipe (213) is fixedly connected to the outside of the water pump (212), and a water outlet pipe (214) is fixedly connected to the side of the water tank (211) away from the water pump (212); The connecting pipe (23) is in communication with the recovery box (24); a rubber sealing ring is further provided on the inner side of the box cover (28); the length, width and height of the rubber sealing ring are adapted to the length, width and height of the inner side of the recovery box (24); the collecting box (29) is arranged on the inner side of the recovery box (24); a connecting pipe is fixedly connected to the outer side of the water tank (211); an end of the connecting pipe away from the water tank (211) is connected to a water pump (212); the water pump (212) is fixedly connected to the bottom of the support plate (210); an end of the water inlet pipe (213) away from the water pump (212) is in communication with the water cavity (25); an end of the water outlet pipe (214) away from the water tank (211) is in communication with the water cavity (25); and a filling pipe for filling cold water is further provided on the outer side of the water tank (211).

2. A distillation recovery device for producing lubricating oil according to claim 1, characterized in that: The top of the distillation box (1) is fixedly connected to a pressure relief pipe (5), the top of the pressure relief pipe (5) is fixedly connected to a pressure relief solenoid valve (6), the inner wall of the distillation box (1) is also fixedly connected to a temperature sensor and a pressure sensor, the inner side of the distillation box (1) is provided with a mounting groove (7), and the inner side of the mounting groove (7) is provided with an electric heating plate (8).

3. A distillation recovery device for producing lubricating oil according to claim 1, characterized in that: The stirring mechanism comprises a motor (11) fixedly connected to the top of a distillation box (1); an output shaft of the motor (11) passes through the distillation box (1) and is fixedly connected to a stirring shaft (12) having spiral blades on its surface; three fixed cylinders (13) are fixedly connected to the outside of the stirring shaft (12); a spring (14) is fixedly connected to the inside of the fixed cylinder (13); a slide plate (15) is fixedly connected to one end of the spring (14) away from the fixed cylinder (13); a support rod (16) is fixedly connected to the outside of the slide plate (15); and a scraper (17) is fixedly connected to one end of the support rod (16) away from the slide plate (15).

4. A distillation recovery device for producing lubricating oil according to claim 3, characterized in that: The stirring shaft (12) is distributed on the inner side of the distillation box (1), the three fixed cylinders (13) are all fixedly connected to the outer side of the stirring shaft (12), and the three fixed cylinders (13) are respectively distributed between adjacent blades of the spiral blade, and the three fixed cylinders (13) have the same specifications and sizes.

5. A distillation recovery device for producing lubricating oil according to claim 3, characterized in that: There are three springs (14), slide plates (15) and support rods (16), one end of each of the three springs (14) is fixedly connected to the inner side of the fixed cylinder (13), and the other ends of the three springs (14) are fixedly connected to the three slide plates (15), respectively. The three slide plates (15) are respectively distributed on the inner sides of the three fixed cylinders (13), one end of each of the three support rods (16) is fixedly connected to the outer sides of the three slide plates (15), and the other ends of the three support rods (16) pass through the three fixed cylinders (13) and are fixedly connected to the outer sides of the scrapers (17), and the height of the scrapers (17) is adapted to the inner side height of the distillation box (1).

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