A crude glycerol molecular distillation device

Abstract

The present invention discloses a crude glycerol molecular distillation device, which includes a distillation table, a rough distillation cylinder, a fine distillation cylinder, a layered heat separation mechanism and a water-insoluble rough distillation mechanism. The rough distillation cylinder is arranged at the middle position of the upper wall of the distillation table, and multiple groups of the fine distillation cylinders are arranged on the upper wall of the distillation table outside the rough distillation cylinder. The layered heat separation mechanism is arranged on the rough distillation cylinder, and the water-insoluble rough distillation mechanism is arranged inside the rough distillation cylinder. The layered heat separation mechanism includes an external heating mechanism and an internal heat separation mechanism, and the external heating mechanism is arranged on the side wall of the rough distillation cylinder. The present invention belongs to the technical field of crude glycerol distillation, and specifically refers to a crude glycerol molecular distillation device. The present invention provides a crude glycerol molecular distillation device that can reduce the contact area between water vapor and crude glycerol, and can perform secondary extraction of glycerol in the water vapor to reduce the glycerol emission.

Description

Technical Field

[0001] The present invention belongs to the technical field of crude glycerol distillation, and specifically refers to a crude glycerol molecular distillation device. Background Art

[0002] The process of producing refined glycerol by vaporizing and condensing crude glycerol is called glycerol distillation. The glycerol distillation device consists of a distillation tank, multiple groups of series-connected condensers, and a container. Generally, it operates using an intermittent or semi-continuous process. Glycerol is first vaporized under reduced pressure in the distillation tank, and then the glycerol vapor enters the condenser for fractional condensation.

[0003] Currently, the existing crude glycerol molecular distillation devices have the following problems:

[0004] During the distillation operation of crude glycerol, there is a large amount of water vapor evaporated inside it. When a large amount of water vapor comes into contact with a large amount of glycerol, it is easy for the water vapor to dissolve back into the glycerol again, thereby reducing the distillation effect of crude glycerol. Secondly, there may be a certain amount of glycerol in the water vapor distilled from crude glycerol. Traditional glycerol distillation devices do not have the function of collecting glycerol in the water vapor, resulting in a large amount of glycerol flowing into the air. Therefore, there is an urgent need for a crude glycerol molecular distillation device that can reduce the contact area between water vapor and crude glycerol and can extract glycerol in the water vapor for a second time. Summary of the Invention

[0005] In view of the above situation, to overcome the defects of the prior art, this solution provides a crude glycerol molecular distillation device that can reduce the contact area between water vapor and crude glycerol, can extract glycerol in the water vapor for a second time, and reduce the glycerol emission.

[0006] The technical solution adopted in this solution is as follows: A crude glycerol molecular distillation device proposed in this solution includes a distillation table, a rough distillation cylinder, a rectification cylinder, a layer-type heat separation mechanism, and a waterproof and soluble rough distillation mechanism. The rough distillation cylinder is located in the middle of the upper wall of the distillation table. Multiple groups of rectification cylinders are arranged on the upper wall of the distillation table outside the rough distillation cylinder. The layer-type heat separation mechanism is arranged on the rough distillation cylinder. The waterproof and soluble rough distillation mechanism is arranged inside the rough distillation cylinder. The layer-type heat separation mechanism includes an external heating mechanism and an internal heat separation mechanism. The external heating mechanism is arranged on the side wall of the rough distillation cylinder. The internal heat separation mechanism is arranged on the inner wall of the rough distillation cylinder. The waterproof and soluble rough distillation mechanism includes a crude glycerol conveying mechanism, a rotation force stretching type evaporation mechanism, a rectification liquid collection mechanism, and a steam cotton absorption type discharge mechanism. The crude glycerol conveying mechanism is arranged on the upper wall of the rough distillation cylinder. The rotation force stretching type evaporation mechanism is arranged inside the rough distillation cylinder. The rectification liquid collection mechanism is arranged on the bottom wall of the rough distillation cylinder. The steam cotton absorption type discharge mechanism is arranged outside the rough distillation cylinder.

[0007] As a further optimization of the solution of this case, the external heating mechanism includes a heating plate, a metal rod, a high-frequency coil and an outer guard plate. A plurality of groups of the heating plates are symmetrically arranged up and down between the top side wall and the bottom side wall of the rough distillation cylinder. The metal rod is arranged between the heating plates. The high-frequency coil is arranged between the heating plates outside the metal rod. The outer guard plate is arranged on the side of the heating plate away from the rough distillation cylinder. The internal heat distribution mechanism includes a heating port, a heat conduction block, an annular evaporation plate and a diversion groove. A plurality of groups of the heating ports are arranged on the side of the rough distillation cylinder close to the metal rod. The heat conduction block is arranged inside the heating port. The annular evaporation plate is arranged on the side of the heat conduction block away from the metal rod. The annular evaporation plate is arranged inside the rough distillation cylinder. A plurality of groups of the diversion grooves are arranged on the inner wall of the annular evaporation plate, and the diversion grooves are arranged in a through manner.

[0008] During use, the high-frequency coil is energized to heat the metal rod. The outer guard plate blocks the heat of the metal rod. The temperature of the metal rod rises to heat the heat conduction block, and the heat conduction block heats the annular evaporation plate inside the rough distillation cylinder.

[0009] Preferably, the crude glycerol conveying mechanism includes a crude glycerol cylinder, an oil inlet joint, an oil pipeline, and a rotary force stretching type evaporation mechanism. The crude glycerol cylinder is arranged on the upper wall of the rough distillation cylinder. A plurality of groups of the oil inlet joints are communicatively arranged on the upper wall of the crude glycerol cylinder. The oil pipeline is communicatively arranged between the crude glycerol cylinder and the rough distillation cylinder. The rotary force stretching type evaporation mechanism includes a support pipe, an oil outlet, an oil separation cylinder, a separation seat, a rotary separation pipe, a tension plate, a rotary tension spring, a magnetic block, a sealing block, a bypass plate, an attracting magnet, a sleeve, a rotating block, a driving magnet, a rotating rod, a rotating plate, and a driving coil. The support pipe is arranged between the upper wall and the bottom wall of the rough distillation cylinder. A plurality of groups of the oil outlets are arranged on the side wall of the support pipe. The oil separation cylinder is rotatably arranged at one end of the support pipe close to the oil outlet. A plurality of groups of the separation seats are arranged on the side wall of the oil separation cylinder. The rotary separation pipe penetrates through the separation seat and is communicatively arranged on the side wall of the oil separation cylinder. The tension plate is arranged on the side wall of the oil separation cylinder on one side of the separation seat. The rotary tension springs are symmetrically arranged on both sides of the tension plate. The magnetic block is arranged between the sides of the rotary tension springs away from the tension plate. The sealing block is arranged on the side of the magnetic block close to the rotary separation pipe. The sealing block is clamped inside the rotary separation pipe. A plurality of groups of the bypass plates are arranged on the upper wall of the oil separation cylinder. The attracting magnet is arranged on the bottom wall of the end of the bypass plate away from the oil separation cylinder. The sleeve is arranged between the oil separation cylinder outside the support pipe. The rotating block is arranged on the outside of the sleeve. The rotating rod is arranged on the side wall of the rotating block. The rotating plate is arranged on the side of the rotating rod away from the rotating block. A plurality of groups of the driving magnets are arranged on the inner wall of the rough distillation cylinder between the annular evaporation plates. The driving coil is arranged on the side of the rotating plate away from the rotating rod. The driving coil and the driving magnet are horizontally arranged. The rectifying liquid collecting mechanism includes a liquid guiding groove, a buoyancy spring, a buoyancy ball, a fuel pump, and an oil pipeline. The liquid guiding groove is arranged on the bottom wall of the rough distillation cylinder. The liquid guiding groove is open at the upper end. The buoyancy spring is arranged on the bottom wall of the liquid guiding groove. The buoyancy ball is arranged on the side of the buoyancy spring away from the liquid guiding groove. The fuel pump is arranged on the side wall of the rectifying cylinder. The power output end of the fuel pump penetrates through and is arranged on the inner wall of the rectifying cylinder. The oil pipeline penetrates through the rough distillation cylinder and is communicatively arranged between the power input end of the fuel pump and the liquid guiding groove. The steam cotton absorption type discharging mechanism includes a pipeline block, an annular pipeline, an exhaust valve, an adsorption cotton layer, an exhaust pipe, a lower oil threaded hole, and a sealing bolt. The pipeline block is arranged on the side of the outer protection plate away from the heating plate. The annular pipeline is arranged at the end of the pipeline block away from the outer protection plate. A plurality of groups of the exhaust valves are communicatively arranged on the upper wall of the annular pipeline. The adsorption cotton layer is arranged on the inner wall of the annular pipeline. The exhaust pipe penetrates through the pipeline block and is communicatively arranged between the annular pipeline and the top side wall of the rough distillation cylinder. The lower oil threaded hole is arranged on the bottom wall of the pipeline block and the bottom wall of the annular pipeline. The sealing bolt is arranged inside the lower oil threaded hole. The sealing bolt is threadedly connected with the lower oil threaded hole.

[0010] During use, the crude glycerol to be processed is transported through the oil inlet connector into the interior of the crude glycerol cylinder. The crude glycerol inside the crude glycerol cylinder enters the interior of the support pipe through the oil delivery pipe. The support pipe diverts the crude glycerol into the interior of the oil separation cylinder through the oil outlet. In the initial state, the pulling spring is in a shortened state, and the sealing block is engaged inside one end of the rotating pipe away from the oil separation cylinder. At this time, when the drive coil is energized, a magnetic field is generated between the drive magnet. Under the action of the magnetic field, the pulling plate drives the oil separation cylinder to rotate around the support pipe through the sleeve. As the rotation speed of the oil separation cylinder increases, the pulling spring undergoes elastic deformation under the rotational force, and the pulling spring elongates to drive the sealing block to be pulled out from the interior of the rotating pipe through the magnetic block. The sealing block drives the magnetic block to elongate and attract below the magnet under the elasticity of the pulling spring. The attracting magnet and the magnetic block are arranged with opposite polarities. The attracting magnet is fixed on the bottom wall of the bypass plate and adsorbs the magnetic block through magnetic force. The magnetic block deviates from the throwing route of the crude glycerol under the deformation of the pulling spring, thereby avoiding blocking the throwing route of the crude glycerol, so that the crude glycerol can accurately reach the inner wall of the annular evaporation plate. At this time, the crude glycerol inside the oil separation cylinder is thrown into the inner wall of the annular evaporation plate through the rotating pipe under centrifugal motion. The crude glycerol flows along the liquid guide groove towards the bottom of the crude distillation cylinder. The annular evaporation plate heats the crude glycerol. During the flow of the crude glycerol, the water inside it evaporates into the interior of the crude distillation cylinder, and the water vapor is discharged into the interior of the annular pipe through the exhaust pipe. The adsorption cotton layer in the annular pipe adsorbs the water in the water vapor. During the distillation of crude glycerol, the evaporated water vapor may carry a small amount of glycerol. Therefore, the adsorption cotton layer is provided to filter and discharge the crude glycerol remaining in the water vapor. The crude glycerol inside the crude distillation cylinder flows along the liquid guide groove to the bottom of the crude distillation cylinder for storage. When there is a certain amount of glycerol at the bottom of the crude distillation cylinder, the buoyancy force received by the buoyancy ball is greater than the elastic retraction force of the buoyancy spring, causing the buoyancy ball to float by overcoming the elasticity of the buoyancy spring. At this time, the liquid guide groove is in a conductive state, and the glycerol at the bottom of the crude distillation cylinder enters the interior of the liquid guide groove. The oil pump extracts the glycerol inside the liquid guide groove through the oil extraction pipe. The glycerol enters the interior of the rectification cylinder through the power output end of the oil pump for storage. Glycerol and water are extremely easy to mix together. To prevent water vapor from entering the interior of the rectification cylinder, the inlet for rectified glycerol is blocked by the buoyancy ball. At the same time, in the way that the oil separation cylinder rotates to drive the rotating pipe to spray, the contact area between the water vapor and the glycerol can be reduced, so as to ensure that the distilled water vapor will not be dissolved into the glycerol again. After the crude glycerol inside the crude distillation cylinder is processed, the glycerol adsorbed by the adsorption cotton layer is collected. The adsorption cotton layer adsorbs and dries the water vapor inside the annular pipe. The annular pipe surrounds the outer side of the metal rod, and the heat dissipated by the metal rod heats the annular pipe. The temperature of the annular pipe rises to heat the water vapor inside the adsorption cotton layer, and the water vapor evaporates and is discharged from the interior of the annular pipe through the exhaust valve, thereby reducing the emission of glycerol in the water vapor. Rotate the sealing bolt, and the sealing bolt is screwed out from the interior of the lower oil threaded hole. The glycerol remaining inside the annular pipe flows out of the interior of the annular pipe through the lower oil threaded hole.

[0011] Specifically, a controller is provided on the upper wall of the distillation table.

[0012] Among them, the controller is electrically connected to the drive magnet, the drive coil, and the oil pump respectively.

[0013] The beneficial effects achieved by this solution with the above structure are as follows:

[0014] Compared with the prior art, this solution adopts the method of rotary diversion heating, which can reduce the contact area between the evaporated water vapor and the crude glycerol, avoid the large amount of contact between the distilled glycerol and the water vapor, reduce the probability of water vapor flowing back into the glycerol, and can perform secondary extraction on part of the glycerol carried in the steam, reducing the concentration of glycerol discharged to the outside with the water vapor during the crude distillation operation. Furthermore, it improves the operation efficiency of the distillation equipment, thereby completing the distillation operation of crude glycerol without contacting water vapor. The liquid guide groove is in a conducting state, and the glycerol at the bottom of the crude distillation cylinder enters the inside of the liquid guide groove. The oil pump extracts the glycerol inside the liquid guide groove through the oil suction pipe, and the glycerol enters the inside of the rectification cylinder through the power output end of the oil pump for storage. Glycerol and water are extremely easy to mix together. To prevent water vapor from entering the inside of the rectification cylinder, the buoyancy ball is used to block and cut off the inlet of the rectified glycerol. At the same time, in the way of the rotating and spraying of the rotating pipe driven by the rotation of the oil separation cylinder, the contact area between the water vapor and the glycerol can be reduced, so as to ensure that the distilled water vapor will not be dissolved into the glycerol again. When the crude glycerol inside the crude distillation cylinder is processed, the glycerol adsorbed by the adsorption cotton layer is collected. The adsorption cotton layer adsorbs and dries the water vapor inside the annular pipeline. The annular pipeline surrounds the outside of the metal rod, and the heat emitted by the metal rod heats the annular pipeline. The temperature of the annular pipeline rises to heat the water vapor inside the adsorption cotton layer, and the water vapor evaporates and is discharged from the inside of the annular pipeline through the exhaust valve. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of this solution;

[0016] Figure 2 is the top-down perspective view of this solution;

[0017] Figure 3 is the bottom-up perspective view of this solution;

[0018] Figure 4 is the front view of this solution;

[0019] Figure 5 is the side view of this solution;

[0020] Figure 6 is the top view of this solution;

[0021] Figure 7 is the exploded structural schematic diagram of this solution;

[0022] Figure 8 is a schematic diagram of the internal structure of this solution;

[0023] Figure 9 is a schematic diagram of the structure of the rotational force stretching type evaporation mechanism of this solution;

[0024] Figure 10 is Figure 6 a partial sectional view of part A-A of

[0025] Figure 11 is Figure 6 a partial sectional view of part B-B of

[0026] Figure 12 is Figure 6 a partial sectional view of part C-C of

[0027] Figure 13 is Figure 9 an enlarged schematic diagram of part I of

[0028] Among them, 1. distillation table, 2. rough distillation cylinder, 3. rectification cylinder, 4. layer type heat separation mechanism, 5. external heating mechanism, 6. heating plate, 7. metal rod, 8. high-frequency coil, 9. outer protection plate, 10. internal heat separation mechanism, 11. heating port, 12. heat conduction block, 13. annular evaporation plate, 14. diversion groove, 15. water-insoluble rough distillation mechanism, 16. crude glycerol conveying mechanism, 17. crude glycerol cylinder, 18. oil inlet joint, 19. oil pipeline, 20. rotational force stretching type evaporation mechanism, 21. support pipe, 22. oil outlet, 23. oil separation cylinder, 24. separation seat, 25. swirl separation pipe, 26. tension plate, 27. tension spring, 28. magnetic block, 29. sealing block, 30. bypass plate, 31. attracting magnet, 32. sleeve, 33. rotating block, 34. driving magnet, 35. rotating rod, 36. rotating plate, 37. driving coil, 38. rectification liquid collection mechanism, 39. liquid guide groove, 40. buoyancy spring, 41. buoyancy ball, 42. oil pump, 43. oil suction pipe, 44. steam cotton absorption type discharge mechanism, 45. pipeline block, 46. annular pipeline, 47. exhaust valve, 48. adsorption cotton layer, 49. exhaust pipe, 50. lower oil threaded hole, 51. sealing bolt, 52. controller.

[0029] The attached drawings are used to provide a further understanding of this solution, and constitute a part of the specification. Together with the embodiments of this solution, they are used to explain this solution and do not constitute a limitation to this solution. Specific implementation manners

[0030] Next, the technical solutions in the embodiments of this solution will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this solution. Obviously, the described embodiments are only a part of the embodiments of this solution, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this solution without creative efforts belong to the scope of protection of this solution.

[0031] In the description of this solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this solution.

[0032] As Figures 1-13 shown, a crude glycerol molecular distillation device proposed by this solution includes a distillation table 1, a rough distillation cylinder 2, a fine distillation cylinder 3, a layered heat separation mechanism 4, and a water-insoluble rough distillation mechanism 15. The rough distillation cylinder 2 is arranged at the middle position of the upper wall of the distillation table 1. Multiple groups of the fine distillation cylinders 3 are arranged on the upper wall of the distillation table 1 outside the rough distillation cylinder 2. The layered heat separation mechanism 4 is arranged on the rough distillation cylinder 2. The water-insoluble rough distillation mechanism 15 is arranged inside the rough distillation cylinder 2. The layered heat separation mechanism 4 includes an external heating mechanism 5 and an internal heat separation mechanism 10. The external heating mechanism 5 is arranged on the side wall of the rough distillation cylinder 2. The internal heat separation mechanism 10 is arranged on the inner wall of the rough distillation cylinder 2. The water-insoluble rough distillation mechanism 15 includes a crude glycerol conveying mechanism 16, a rotational force stretching type evaporation mechanism 20, a fine distillation liquid collection mechanism 38, and a steam cotton absorption type discharge mechanism 44. The crude glycerol conveying mechanism 16 is arranged on the upper wall of the rough distillation cylinder 2. The rotational force stretching type evaporation mechanism 20 is arranged inside the rough distillation cylinder 2. The fine distillation liquid collection mechanism 38 is arranged on the bottom wall of the rough distillation cylinder 2. The steam cotton absorption type discharge mechanism 44 is arranged outside the rough distillation cylinder 2.

[0033] The external heating mechanism 5 includes a heating plate 6, a metal rod 7, a high-frequency coil 8, and an outer protection plate 9. Multiple groups of the heating plates 6 are symmetrically arranged up and down between the top side wall and the bottom side wall of the rough distillation cylinder 2. The metal rod 7 is arranged between the heating plates 6. The high-frequency coil 8 is arranged between the heating plates 6 outside the metal rod 7. The outer protection plate 9 is arranged on the side of the heating plate 6 away from the rough distillation cylinder 2. The internal heat separation mechanism 10 includes a heating port 11, a heat conduction block 12, an annular evaporation plate 13, and a diversion groove 14. Multiple groups of the heating ports 11 are arranged on the side of the rough distillation cylinder 2 close to the metal rod 7. The heat conduction block 12 is arranged inside the heating port 11. The annular evaporation plate 13 is arranged on the side of the heat conduction block 12 away from the metal rod 7. The annular evaporation plate 13 is arranged inside the rough distillation cylinder 2. Multiple groups of the diversion grooves 14 are arranged on the inner wall of the annular evaporation plate 13. The diversion grooves 14 are arranged in a through manner.

[0034] The crude glycerol conveying mechanism 16 includes a crude glycerol cylinder 17, an oil inlet connector 18, an oil delivery pipe 19, and a rotary force stretching type evaporation mechanism 20. The crude glycerol cylinder 17 is arranged on the upper wall of the crude distillation cylinder 2. A plurality of groups of the oil inlet connectors 18 are communicatively arranged on the upper wall of the crude glycerol cylinder 17. The oil delivery pipe 19 is communicatively arranged between the crude glycerol cylinder 17 and the crude distillation cylinder 2. The rotary force stretching type evaporation mechanism 20 includes a support pipe 21, an oil outlet 22, an oil separation cylinder 23, a separation seat 24, a rotary separation pipe 25, a tension plate 26, a rotary tension spring 27, a magnetic block 28, a sealing block 29, a bypass plate 30, an attracting magnet 31, a sleeve 32, a rotating block 33, a driving magnet 34, a rotating rod 35, a rotating plate 36, and a driving coil 37. The support pipe 21 is arranged between the upper wall and the bottom wall of the crude distillation cylinder 2. A plurality of groups of the oil outlets 22 are arranged on the side wall of the support pipe 21. The oil separation cylinder 23 is rotatably arranged at one end of the support pipe 21 close to the oil outlet 22. A plurality of groups of the separation seats 24 are arranged on the side wall of the oil separation cylinder 23. The rotary separation pipe 25 penetrates through the separation seat 24 and is communicatively arranged on the side wall of the oil separation cylinder 23. The tension plate 26 is arranged on the side wall of the oil separation cylinder 23 on one side of the separation seat 24. The rotary tension springs 27 are symmetrically arranged on both sides of the tension plate 26. The magnetic block 28 is arranged between the sides of the rotary tension springs 27 far away from the tension plate 26. The sealing block 29 is arranged on the side of the magnetic block 28 close to the rotary separation pipe 25. The sealing block 29 is snap-fitted inside the rotary separation pipe 25. A plurality of groups of the bypass plates 30 are arranged on the upper wall of the oil separation cylinder 23. The attracting magnet 31 is arranged on the bottom wall of the end of the bypass plate 30 far away from the oil separation cylinder 23. The sleeve 32 is arranged between the oil separation cylinder 23 outside the support pipe 21. The rotating block 33 is arranged on the outside of the sleeve 32. The rotating rod 35 is arranged on the side wall of the rotating block 33. The rotating plate 36 is arranged on the side of the rotating rod 35 far away from the rotating block 33. A plurality of groups of the driving magnets 34 are arranged on the inner wall of the crude distillation cylinder 2 between the annular evaporation plates 13. The driving coil 37 is arranged on the side of the rotating plate 36 far away from the rotating rod 35. The driving coil 37 and the driving magnet 34 are horizontally arranged. The rectifying liquid collecting mechanism 38 includes a liquid guiding groove 39, a buoyancy spring 40, a buoyancy ball 41, a fuel pump 42, and an oil suction pipe 43. The liquid guiding groove 39 is arranged on the bottom wall of the crude distillation cylinder 2, and the liquid guiding groove 39 is open at the upper end. The buoyancy spring 40 is arranged on the bottom wall of the liquid guiding groove 39. The buoyancy ball 41 is arranged on the side of the buoyancy spring 40 far away from the liquid guiding groove 39. The fuel pump 42 is arranged on the side wall of the rectifying cylinder 3. The power output end of the fuel pump 42 penetrates through and is arranged on the inner wall of the rectifying cylinder 3. The oil suction pipe 43 penetrates through the crude distillation cylinder 2 and is communicatively arranged between the power input end of the fuel pump 42 and the liquid guiding groove 39.The steam cotton absorption type discharge mechanism 44 includes a pipeline block 45, an annular pipeline 46, an exhaust valve 47, an adsorption cotton layer 48, an exhaust pipe 49, a lower oil threaded hole 50 and a sealing bolt 51. The pipeline block 45 is arranged on the side of the outer guard plate 9 away from the heating plate 6. The annular pipeline 46 is arranged at one end of the pipeline block 45 away from the outer guard plate 9. A plurality of groups of exhaust valves 47 are communicated and arranged on the upper wall of the annular pipeline 46. The adsorption cotton layer 48 is arranged on the inner wall of the annular pipeline 46. The exhaust pipe 49 penetrates through the pipeline block 45 and is communicated and arranged between the annular pipeline 46 and the top side wall of the rough distillation cylinder 2. The lower oil threaded hole 50 is arranged on the bottom wall of the pipeline block 45 and the bottom wall of the annular pipeline 46. The sealing bolt 51 is arranged inside the lower oil threaded hole 50, and the sealing bolt 51 is threadedly connected with the lower oil threaded hole 50.;

[0035] Specifically, a controller 52 is arranged on the upper wall of the distillation table 1.

[0036] Among them, the controller 52 is electrically connected to the driving magnet 34, the driving coil 37 and the oil pump 42 respectively.

[0037] During specific use, in Embodiment 1, when in use, the controller 52 controls the high-frequency coil 8 to start. The high-frequency coil 8 is energized to heat the metal rod 7. The outer guard plate 9 blocks the heat of the metal rod 7. The temperature of the metal rod 7 rises to heat the heat conduction block 12, and the heat conduction block 12 heats the annular evaporation plate 13 inside the rough distillation cylinder 2.

[0038] Specifically, the crude glycerol to be processed is transported to the inside of the crude glycerol cylinder 17 through the oil inlet joint 18. The crude glycerol inside the crude glycerol cylinder 17 enters the inside of the support pipe 21 through the oil delivery pipe 19. The support pipe 21 diverts the crude glycerol to the inside of the oil separation cylinder 23 through the oil outlet 22. In the initial state, the tension spring 27 is in a shortened state, and the sealing block 29 is clamped inside one end of the rotating pipe 25 away from the oil separation cylinder 23. At this time, the controller 52 controls the driving coil 37 to start. The driving coil 37 is energized to generate a magnetic field with the driving magnet 34. Under the action of the magnetic field, the tension plate 26 drives the oil separation cylinder 23 to rotate around the support pipe 21 through the sleeve 32. As the rotation speed of the oil separation cylinder 23 increases, the tension spring 27 undergoes elastic deformation under the action of the rotational force. The tension spring 27 elongates to drive the sealing block 29 to be pulled out from the inside of the rotating pipe 25 through the magnetic block 28. The sealing block 29 drives the magnetic block 28 to elongate and attract the lower part of the attracting magnet 31 under the elasticity of the tension spring 27. The attracting magnet 31 and the magnetic block 28 are arranged with opposite polarities. The attracting magnet 31 is fixed on the bottom wall of the bypass plate 30 and adsorbs the magnetic block 28 through magnetic force. The magnetic block 28 deviates from the throwing route of the crude glycerol under the deformation of the tension spring 27, thereby avoiding blocking the throwing and separating route of the crude glycerol, so that the crude glycerol can accurately reach the inner wall of the annular evaporation plate 13;

[0039] At this time, the crude glycerol inside the oil separation cylinder 23 is thrown into the inner wall of the annular evaporation plate 13 by the rotating centrifuge through the swirl tube 25. The crude glycerol flows along the liquid guide groove 39 towards the bottom of the crude distillation cylinder 2. The annular evaporation plate 13 heats the crude glycerol. During the flow of the crude glycerol, the water inside it evaporates into the crude distillation cylinder 2. The water vapor is discharged into the annular pipeline 46 through the exhaust pipe 49. The adsorption cotton layer 48 in the annular pipeline 46 adsorbs the water in the water vapor. During the distillation of the crude glycerol, a small amount of glycerol may be carried by the evaporated water vapor. Therefore, the adsorption cotton layer 48 is provided to filter and discharge the remaining crude glycerol in the water vapor. The crude glycerol inside the crude distillation cylinder 2 flows along the liquid guide groove 39 to the bottom of the crude distillation cylinder 2 for storage;

[0040] When a certain amount of glycerol is stored at the bottom of the crude distillation cylinder 2, the buoyancy force received by the buoyancy ball 41 is greater than the elastic retraction force of the buoyancy spring 40, causing the buoyancy ball 41 to float up by overcoming the elasticity of the buoyancy spring 40. At this time, the liquid guide groove 39 changes from a blocked state to a conducting state, and the glycerol at the bottom of the crude distillation cylinder 2 enters the liquid guide groove 39. The controller 52 controls the start of the oil pump 42. The oil pump 42 extracts the glycerol inside the liquid guide groove 39 through the oil suction pipe 43. The glycerol enters the rectification cylinder 3 through the power output end of the oil pump 42 for storage. Glycerol and water are extremely easy to mix together. To prevent water vapor from entering the rectification cylinder 3, the buoyancy ball 41 is set to block and cut off the inlet of the rectified glycerol. When the glycerol at the bottom of the crude distillation cylinder 2 is completely extracted, the resilience of the buoyancy spring 40 is greater than the buoyancy force of the buoyancy ball 41;

[0041] At the same time, in the way that the rotation of the oil separation cylinder 23 drives the swirl tube 25 to spray, the contact area between the water vapor and the glycerol can be reduced, so as to ensure that the distilled water vapor will not dissolve into the glycerol again. After the crude glycerol inside the crude distillation cylinder 2 is processed, the glycerol adsorbed by the adsorption cotton layer 48 is collected. The adsorption cotton layer 48 dries and adsorbs the water vapor inside the annular pipeline 46. The annular pipeline 46 surrounds the outer side of the metal rod 7. The heat emitted by the metal rod 7 heats the annular pipeline 46. The temperature of the annular pipeline 46 rises to heat the water vapor inside the adsorption cotton layer 48. The water vapor is heated and evaporated and discharged from the inside of the annular pipeline 46 through the exhaust valve 47, so as to reduce the discharge amount of glycerol in the water vapor. Manually rotate the sealing bolt 51, and the sealing bolt 51 is screwed out from the lower oil thread hole 50. The glycerol remaining inside the annular pipeline 46 flows out of the annular pipeline 46 through the lower oil thread hole 50; Repeat the above operations when using next time.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0043] Although embodiments of the present solution have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present solution. The scope of the present solution is defined by the appended claims and their equivalents.

[0044] The above description of the present solution and its implementation manners is not restrictive. What is shown in the drawings is only one of the implementation manners of the present solution, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the creative purpose of the present solution, they shall fall within the protection scope of the present solution.

Claims

1. A crude glycerol molecular distillation device, comprising a distillation table, a rough distillation cylinder and a fine distillation cylinder, characterized in that: It further includes a layered heat separation mechanism and a water-insoluble rough distillation mechanism. The rough distillation cylinder is arranged at the middle position of the upper wall of the distillation table, and multiple groups of the fine distillation cylinders are arranged on the upper wall of the distillation table outside the rough distillation cylinder; the layered heat separation mechanism includes an external heating mechanism and an internal heat separation mechanism; the external heating mechanism is arranged on the side wall of the rough distillation cylinder, and the internal heat separation mechanism is arranged on the inner wall of the rough distillation cylinder; the water-insoluble rough distillation mechanism includes a crude glycerol conveying mechanism, a rotary force stretching evaporation mechanism, a fine distillation liquid collection mechanism and a steam cotton absorption discharge mechanism; the crude glycerol conveying mechanism is arranged on the upper wall of the rough distillation cylinder, the rotary force stretching evaporation mechanism is arranged inside the rough distillation cylinder, the fine distillation liquid collection mechanism is arranged on the bottom wall of the rough distillation cylinder, and the steam cotton absorption discharge mechanism is arranged outside the rough distillation cylinder; The external heating mechanism includes a heating plate and a metal rod; multiple groups of the heating plates are symmetrically arranged up and down between the top side wall and the bottom side wall of the rough distillation cylinder, and the metal rod is arranged between the heating plates; The internal heat separation mechanism includes a heating port, a heat conduction block and an annular evaporation plate; multiple groups of the heating ports are arranged on one side of the rough distillation cylinder close to the metal rod, the heat conduction block is arranged inside the heating port, and the annular evaporation plate is arranged on the side of the heat conduction block away from the metal rod; The rotary force stretching evaporation mechanism includes a support pipe, an oil outlet, an oil separation cylinder, a separation seat, a rotary separation pipe, a tension plate, a rotary tension spring, a magnetic block, a sealing block, a bypass plate, an attracting magnet, a sleeve, a rotating block, a driving magnet, a rotating rod, a rotating plate and a driving coil; The support pipe is arranged between the upper wall and the bottom wall of the rough distillation cylinder, multiple groups of the oil outlets are arranged on the side wall of the support pipe, the oil separation cylinder is rotatably arranged at one end of the support pipe close to the oil outlet, multiple groups of the separation seats are arranged on the side wall of the oil separation cylinder, the rotary separation pipe penetrates through the separation seat and is communicated with the side wall of the oil separation cylinder, and the tension plate is arranged on the side wall of the oil separation cylinder on one side of the separation seat; The rotary tension springs are symmetrically arranged on both sides of the tension plate, the magnetic block is arranged between the sides of the rotary tension springs away from the tension plate, the sealing block is arranged on the side of the magnetic block close to the rotary separation pipe, the sealing block is clamped inside the rotary separation pipe, multiple groups of the bypass plates are arranged on the upper wall of the oil separation cylinder, the attracting magnet is arranged on the bottom wall of the end of the bypass plate away from the oil separation cylinder, and the sleeve is arranged between the oil separation cylinders outside the support pipe; The rotating block is arranged outside the sleeve, the rotating rod is arranged on the side wall of the rotating block, the rotating plate is arranged on the side of the rotating rod away from the rotating block, multiple groups of the driving magnets are arranged on the inner wall of the rough distillation cylinder between the annular evaporation plates, and the driving coil is arranged on the side of the rotating plate away from the rotating rod.

2. A crude glycerol molecular distillation device according to claim 1, characterized in that: The external heating mechanism further includes a high-frequency coil and an outer protection plate. The high-frequency coil is arranged between the heating plates outside the metal rod, and the outer protection plate is arranged on the side of the heating plate away from the rough distillation cylinder.

3. A crude glycerol molecular distillation device according to claim 2, characterized in that: The internal heat separation mechanism further includes a diversion groove. The annular evaporation plate is arranged inside the rough distillation cylinder, and multiple groups of the diversion grooves are arranged on the inner wall of the annular evaporation plate. The diversion grooves are arranged in a through manner.

4. A crude glycerol molecular distillation device according to claim 3, characterized in that: The crude glycerol conveying mechanism includes a crude glycerol cylinder, an oil inlet joint, an oil pipeline, and a rotational force stretching type evaporation mechanism. The crude glycerol cylinder is arranged on the upper wall of the crude distillation cylinder. A plurality of groups of the oil inlet joints are communicatively arranged on the upper wall of the crude glycerol cylinder. The oil pipeline is communicatively arranged between the crude glycerol cylinder and the crude distillation cylinder.

5. A crude glycerol molecular distillation device according to claim 4, characterized in that: The driving coil and the driving magnet are horizontally arranged.

6. A crude glycerol molecular distillation device according to claim 5, characterized in that: The rectifying liquid collecting mechanism includes a liquid guide groove, a buoyancy spring, a buoyancy ball, an oil pump, and an oil pipeline. The liquid guide groove is arranged on the bottom wall of the crude distillation cylinder and has an open upper end. The buoyancy spring is arranged on the bottom wall of the liquid guide groove. The buoyancy ball is arranged on the side of the buoyancy spring away from the liquid guide groove. The oil pump is arranged on the side wall of the rectifying cylinder. The power output end of the oil pump penetrates through the inner wall of the rectifying cylinder. The oil pipeline penetrates through the crude distillation cylinder and is communicatively arranged between the power input end of the oil pump and the liquid guide groove.

7. A crude glycerol molecular distillation device according to claim 6, characterized in that: The steam cotton absorption type discharge mechanism includes a pipeline block, an annular pipeline, an exhaust valve, an adsorption cotton layer, an exhaust pipe, a lower oil threaded hole, and a sealing bolt. The pipeline block is arranged on the side of the outer protection plate away from the heating plate. The annular pipeline is arranged at the end of the pipeline block away from the outer protection plate. A plurality of groups of exhaust valves are communicatively arranged on the upper wall of the annular pipeline.

8. A crude glycerol molecular distillation device according to claim 7, characterized in that: The adsorption cotton layer is arranged on the inner wall of the annular pipeline. The exhaust pipe penetrates through the pipeline block and is communicatively arranged between the annular pipeline and the top side wall of the crude distillation cylinder. The lower oil threaded hole is arranged on the bottom wall of the pipeline block and the bottom wall of the annular pipeline. The sealing bolt is arranged inside the lower oil threaded hole, and the sealing bolt is threadedly connected to the lower oil threaded hole.

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