A separation device for dioxane

Abstract

The present invention belongs to the technical field of dioxane separation, and mainly relates to a separation device for dioxane, comprising a heating sleeve, an evaporation sleeve, a central shaft and a driving member, wherein a feed plate, an adjusting plate and a scraper assembly are arranged on the central shaft; the circumferential edge of the feed plate is connected to the evaporation sleeve, a plurality of feed holes are arranged near the circumferential edge of the feed plate, and an adjusting hole is arranged on the adjusting plate; the scraper assembly comprises a central sleeve and a plurality of material scrapers, a plurality of circumferential tension springs are arranged between the central sleeve and the central shaft; a transmission structure is arranged between the central sleeve and the adjusting plate, and the size of the overlapping area between the feed hole and the adjusting hole can be self-adjusted according to the size of the resistance to which the material scraper is subjected, so as to ensure the adaptation of the amount of material entering the evaporation sleeve per unit time and the resistance to which the material scraper is subjected, ensure the uniform distribution of the material film on the inner wall of the evaporation sleeve, and improve the separation effect of dioxane.

Description

Technical Field

[0001] The invention belongs to the technical field of dioxane separation, and mainly relates to a separation device for dioxane. Background Art

[0002] Dioxane is an organic compound. It is a colorless liquid with a slight fragrance and is a slightly toxic substance. Dioxane is irritating to the skin, eyes and respiratory system, and may cause damage to the liver, kidneys and nervous system. Acute poisoning may lead to death. Dioxane usually forms a high-viscosity mixture with other substances, and dioxane needs to be separated from the mixture during production.

[0003] At present, the commonly used method for separating dioxane from a mixture is distillation, and dioxane is separated by distilling the mixture through a scraper film evaporator, such as a material scraper film evaporator disclosed in a Chinese patent application with application publication number CN111013172A, which includes a heating sleeve, an evaporation sleeve, a secondary treatment box, a transmission shaft, and a distributor, the evaporation sleeve is arranged in the heating sleeve, the secondary treatment box is arranged on the top of the heating sleeve, a rotatable transmission shaft is arranged in the middle of the inner cavity of the evaporation sleeve, and a rotary joint located above the secondary treatment box is fixedly sleeved on the top of the transmission shaft. The material scraper film evaporator, through the design of the transmission shaft, stirring mechanism, fixed through pipe, sealing plug, linkage shaft, stirring shaft and guide mechanism, when in use, the dry steam after evaporation treatment is sprayed obliquely upward from the bottom of the evaporation sleeve, which slows down the downflow rate of the material to a certain extent and improves the evaporation effect of the material. At the same time, the dry steam heats the inner material, further improving the heating effect, which is conducive to the full heating of the material.

[0004] However, when using the above-mentioned scraped film evaporator to separate dioxane, a large amount of material may enter the evaporator per unit time, which may cause a large amount of material to accumulate in front of the stirring mechanism. The large amount of material may cause uneven distribution of the film, and even part of the material may fall directly to the bottom without being heated and separated. The above situations may result in the incomplete separation of dioxane from the material, resulting in a poor separation effect. Summary of the invention

[0005] The present invention provides a separation device for dioxane, so as to solve the problem in the prior art that the dioxane separation effect is poor due to a large amount of materials entering the evaporator per unit time.

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] A separation device for dioxane, comprising a heating sleeve, an evaporation sleeve arranged in the heating sleeve, a central shaft rotatably assembled in the evaporation sleeve, and a driving member connected to the central shaft in a transmission manner, wherein a material discharge plate, an adjusting plate, and a scraper assembly are sequentially sleeved on the central shaft from top to bottom; the circumferential edge of the material discharge plate is connected to the evaporation sleeve, a plurality of material discharge holes are arranged near the circumferential edge of the material discharge plate, and an adjusting hole corresponding to each of the material discharge holes is arranged on the adjusting plate; the scraper assembly comprises a central sleeve coaxially sleeved outside the central shaft and a plurality of material scrapers evenly distributed in the circumferential direction of the central sleeve, and the material scrapers are spaced from each other by the evaporation sleeve. A gap is left between the inner walls for forming a thin film, and a plurality of circumferential tension springs evenly distributed in the circumferential direction of the central axis are connected between the central sleeve and the central axis. The circumferential tension springs are in a natural state when the resistance encountered by the material scraper is within a set range, so that the material scraper rotates with the central axis; the circumferential tension springs are in a stretched state when the resistance encountered by the material scraper exceeds a set range, so that the central sleeve rotates relative to the central axis; a transmission structure is provided between the central sleeve and the adjustment plate, so as to drive the adjustment plate to rotate when the central sleeve rotates relative to the central axis, and the adjustment plate rotates to adjust the size of the overlapping area between the discharge hole and the corresponding adjustment hole.

[0008] Beneficial effects: the central axis and the central sleeve are connected by a circumferential tension spring. When the amount of material entering the evaporator per unit time is normal, the resistance of the material falling onto the inner wall of the evaporation sleeve to the material scraper is less than the tension of the circumferential tension spring, the circumferential tension spring is in a natural state, and the central axis and the central sleeve do not rotate relative to each other; when the amount of material entering the evaporator per unit time is too much, the resistance of the material falling onto the inner wall of the evaporation sleeve to the material scraper is greater than the tension of the circumferential tension spring, the circumferential tension spring is in a stretched state, the central axis and the central sleeve rotate relative to each other, the transmission structure drives the adjustment plate to rotate, the size of the overlapping area between the discharge hole and the adjustment hole is reduced, that is, the amount of material entering the evaporator per unit time is reduced, and the size of the overlapping area between the discharge hole and the adjustment hole can be adjusted according to the size of the resistance to the material scraper, thereby ensuring the adaptation of the amount of material entering the evaporator per unit time and the resistance to the material scraper, ensuring the uniform distribution of the material film on the inner wall of the evaporation sleeve, and improving the separation effect of dioxane.

[0009] Furthermore, the transmission structure includes a driving plate, a first transmission plate and a second transmission plate, the driving plate is connected to the center sleeve, and a plurality of first guide inclined surfaces evenly distributed on the circumference are provided on the driving plate, the first transmission plate and the center shaft are slidably matched in the axial direction of the center shaft and are stopped in the radial direction of the center shaft, a first guide block corresponding to the first guide inclined surfaces is provided on the lower side of the first transmission plate, and a plurality of second guide blocks for pushing the second transmission plate to move upward are provided on the upper side of the first transmission plate; the second transmission plate is sleeved outside the center shaft, and a plurality of telescopic parts are connected between the second transmission plate and the blanking plate, a plurality of second guide inclined surfaces are provided on the lower side of the adjustment plate, and a plurality of third guide blocks corresponding to the second guide inclined surfaces are provided on the upper side of the second transmission plate, so as to push the second guide inclined surfaces to drive the adjustment plate to rotate when the second transmission plate moves upward.

[0010] Beneficial effects: The transmission structure is simple, no manpower and driving parts are required, and resources are saved.

[0011] Furthermore, a return volute spring is provided between the adjustment plate and the blanking plate, the inner end of the return volute spring is connected to the adjustment plate, the outer end of the return volute spring is connected to the blanking plate, the inner end height of the return volute spring is lower than the outer end height, and is used to drive the adjustment plate to reverse.

[0012] Beneficial effect: when the resistance of the material scraper is reduced, the second transmission plate descends, and the baffle is reset by a reset volute spring, which has a simple structure and strong practicality.

[0013] Furthermore, the aperture of the adjusting hole is equal to the aperture of the feeding hole.

[0014] Furthermore, a plurality of wing plates corresponding to the circumferential tension springs are provided on the shaft section corresponding to the central sleeve on the central shaft, and support blocks corresponding to the wing plates are provided on the central sleeve, and spring grooves are formed between the support blocks, the wing plates and the central sleeve, and an arc-shaped guide shaft is also provided between the wing plates and the corresponding support blocks for the circumferential tension springs to pass through.

[0015] Beneficial effect: The arc-shaped guide shaft ensures the stretching direction of the circumferential tension spring.

[0016] Furthermore, a baffle is provided on the lower side of the adjustment plate, and a falling slope with a decreasing height from the inside to the outside is provided on the outer side of the baffle. The baffle is coaxially fixed with the central axis, and an escape opening is provided on the baffle for the second guide block to pass through.

[0017] Beneficial effect: The baffle prevents the material from falling directly due to the position of the material falling toward the central axis, and the outer side of the baffle is provided with a falling slope with a decreasing height from the inside to the outside, which is conducive to the material falling on the baffle sliding to a position close to the inner wall of the evaporation sleeve according to the gravity of the material itself.

[0018] Furthermore, a cleaning plate for cleaning residual materials on the inner wall of the evaporation sleeve is movably mounted on the material scraper along the radial direction of the central sleeve, and a cleaning slope is provided on the cleaning plate near the inner wall of the evaporation sleeve.

[0019] Beneficial effect: A cleaning slope is provided at a position of the cleaning plate close to the inner wall of the evaporator sleeve, thereby enhancing the cleaning effect of the cleaning plate on the inner wall of the evaporator sleeve.

[0020] Furthermore, a liquid pipe is provided between the material scraper and the corresponding supporting block, one end of the liquid pipe is connected to the supporting block, and the other end is connected to the material scraper, and both ends of the liquid pipe are respectively slidably sealed and equipped with pistons with rods, and liquid is provided in the liquid pipe, the piston with rod close to the cleaning plate is connected to the cleaning plate, and the piston with rod close to the wing plate moves under the pressure of the wing plate; a plurality of reset springs arranged at intervals up and down are connected between the cleaning plate and the corresponding material scrapers, and the reset springs can be expanded and contracted in the radial direction of the center sleeve to reset the cleaning plate.

[0021] Beneficial effect: When the separation device has been running for a certain period of time, due to the certain viscosity of the material, a certain amount of material will accumulate on the inner wall of the evaporator sleeve, causing the resistance of the material scraper to increase. At this time, the central shaft and the central sleeve rotate relatively, and the wing plate will press the piston with rod on the support block to push it into the liquid pipe. The liquid will press the piston with rod at the other end to push the cleaning plate toward the inner wall of the evaporator sleeve. The cleaning plate reaches a position close to the inner wall of the evaporator sleeve, and the central shaft drives the cleaning plate to clean the accumulated material. This solution adopts a feedback self-adjusting structure. When there is too much residual material on the inner wall of the evaporator sleeve, the resistance of the material scraper increases, and the cleaning plate automatically extends to clean the residual material. It has strong automation and real-time performance, does not require manual labor, and saves manpower.

[0022] Furthermore, a plurality of supporting legs distributed in a circle are connected to the outer wall of the heating sleeve to set the heating sleeve in an overhead position, and the lower ends of the heating sleeve and the evaporating sleeve are detachably connected with a base; a material collecting chamber connected to the tube cavity of the evaporating sleeve is provided in the base, a residue collecting seat is provided in the material collecting chamber, and a buffer groove corresponding to the material scraper is movably mounted on the residue collecting seat in the radial direction of the central axis, the buffer groove is connected to the corresponding cleaning plate, and the bottom surface of the buffer groove is a sliding slope inclined toward the inner side of the residue collecting seat.

[0023] Beneficial effects: a plurality of supporting legs distributed in a circle are connected to the outer wall of the heating sleeve to overhead the heating sleeve, thereby enhancing the stability of the placement of the heating sleeve, and when the material separation is completed, the base is manually disassembled and lowered, so as to facilitate further processing of the separated materials and residual materials; when the cleaning plate is extended, the cleaning plate drives the buffer groove to extend, and the residual materials scraped off by the residue scraper fall into the buffer groove, and the residual materials scraped off by the cleaning plate on the inner wall of the evaporation sleeve also fall into the buffer groove, thereby ensuring that the residual materials are not mixed with the separated materials, and the bottom surface of the buffer groove is a sliding slope inclined toward the inner side of the residue collecting seat, which is conducive to sliding the scraped residual materials onto the residue collecting seat by the gravity of the residual materials themselves.

[0024] Furthermore, the material scraper is provided with a corresponding residue scraper on the side facing away from the cleaning plate, which is used to clean the material residue on the material scraper. The cleaning plate is provided with a transmission rack extending radially along the center sleeve, and the top of the material scraper is rotatably equipped with a transmission gear meshing with the transmission rack. The transmission gear is coaxially connected with an external threaded column extending in the up and down directions, the external threaded column is arranged close to the center sleeve, and the upper and lower ends are respectively rotatably assembled with the material scraper, and the residue scraper is provided with an internal threaded hole that cooperates with the thread of the external threaded column.

[0025] Beneficial effect: When the separation device works for a certain period of time, due to the certain viscosity of the material, a certain amount of residual material will accumulate on the material scraper. When the cleaning plate is extended, the transmission rack drives the external threaded column to rotate, and the external threaded column drives the residue scraper to slide up and down along the surface of the material scraper to clean the residual material on the material scraper. This solution does not require a drive part or manpower, saves resources, has a simple structure, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0027] Figure 1 It is a front view of the present invention;

[0028] Figure 2 for Figure 1 AA section view in;

[0029] Figure 3 for Figure 2 The enlarged schematic diagram of the center C;

[0030] Figure 4 for Figure 2 The enlarged schematic diagram of point D in the middle;

[0031] Figure 5 This is a schematic diagram of the structure of the present invention after the base, top base, evaporation sleeve and heating sleeve are omitted;

[0032] Figure 6 for Figure 5 The enlarged schematic diagram of point E in the middle;

[0033] Figure 7 It is a schematic diagram of the assembly of the driven disc, the driving disc, the first transmission disc and the second transmission disc;

[0034] Figure 8 A top view of the present invention;

[0035] Fig. 9 for Figure 8 BB section view in;

[0036] Fig.10 It is a schematic diagram of the connection between the adjustment plate and the return scroll spring;

[0037] Fig.11 It is a schematic diagram of the connection between the blanking plate and the circular enclosure plate;

[0038] Fig.12 It is a schematic diagram of the assembly of the buffer seat and the residue collection seat;

[0039] Fig.13 It is the assembly diagram of the center sleeve, material scraper and cleaning plate;

[0040] Fig.14 Schematic diagram of the structure of the baffle.

[0041] Description of reference numerals:

[0042] 1. Driving motor; 2. Feeding pipe; 3. Heating sleeve; 4. Support leg; 5. Base; 6. Liquid inlet pipe; 7. Top seat; 8. Liquid outlet pipe; 9. Center sleeve; 10. Liquid passage pipe; 11. Support block; 12. First piston with rod; 13. Wing plate; 14. Circular tension spring; 15. Arc guide shaft; 16. Center shaft; 17. Cleaning plate; 18. Baffle; 19. Buffer seat; 20. Residue collection seat; 21. Transmission rack; 22. Transmission gear; 23. External thread column; 24. Residue scraper; 25. Material scraper; 26. Second transmission disc; 27. First transmission disc; 28. First guide block ; 29. ​​Third guide block; 30. Telescopic rod; 31. Second guide slope; 32. First guide slope; 33. Second guide block; 34. Feed chute; 35. Adjustment plate; 36. Connecting column; 37. Residue collection chute; 38. Material collection chamber; 39. Reset scroll spring; 40. Adjustment hole; 41. Coil spring chamber; 42. Feed hole; 43. Feed plate; 44. Enclosure; 45. Sleeve; 46. Slide slope; 47. Second piston with rod; 48. Evaporation sleeve; 49. Heating chamber; 50. Driving disk; 51. Driven disk; 52. Reset tension spring; 53. Avoidance; 54. Drop slope. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0044] Various non-limiting embodiments of the present invention are described in detail below. Any number of elements in the accompanying drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0045] An embodiment of a dioxane separation device provided by the present invention:

[0046] like Figure 1 , Figure 7 , Fig. 9 , Fig.10 and Fig.11 As shown, a separation device for dioxane includes a driving member, a top seat 7, a heating sleeve 3, an evaporation sleeve 48, a base 5, a central shaft 16, a discharge plate 43, an adjustment plate 35, a baffle 18, a scraper assembly and a transmission structure.

[0047] like Figure 1 , Figure 8 and Fig. 9 As shown, in this embodiment, the driving member is a driving motor 1, which is fixed to the upper end of the top seat 7. The top seat 7 is provided with a material conveying pipe 2 for conveying materials in the evaporation sleeve 48. The top seat 7, the heating sleeve 3, the evaporation sleeve 48 and the base 5 are detachably connected by fastening bolts, which is convenient for the installation and disassembly of the device. A heating chamber 49 for heating the inner wall of the evaporation sleeve 48 is formed between the heating sleeve 3 and the evaporation sleeve 48. A liquid inlet pipe 6 is provided at the upper end of the heating sleeve 3 for conveying heated liquid in the heating chamber 49. A liquid outlet pipe 8 is provided at the lower end of the heating sleeve 3 for conveying the heated liquid with reduced temperature. Four supporting legs 4 distributed in a circle are connected to the outer wall of the heating sleeve 3 to set the heating sleeve 3 overhead to enhance the stability of the placement of the heating sleeve 3. When the material separation is completed, the base 5 is manually disassembled and lowered to facilitate further processing of the separated materials and residual materials.

[0048] like Fig. 9 As shown, the lower end of the central shaft 16 is connected to the base 5 via a rotating bearing, and the upper end of the central shaft 16 is connected to the output end of the above-mentioned driving motor 1, and the driving motor 1 drives the central shaft 16 to rotate.

[0049] like Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the scraper assembly includes a central sleeve 9 coaxially sleeved outside the central axis 16 and four material scrapers 25 evenly distributed in the circumferential direction of the central sleeve 9. The material scraper 25 is fixedly connected to the central sleeve 9 by seven connecting columns 36 evenly spaced along the axial direction of the central axis 16. A gap for forming a thin film is left between the material scraper 25 and the inner wall of the evaporation sleeve 48. Four circumferential tension springs 14 are evenly distributed in the circumferential direction of the central shaft 16 between the central sleeve 9 and the central shaft 16. Four wing plates 13 corresponding to the circumferential tension springs 14 are provided on the central shaft 16 on the shaft section corresponding to the central sleeve 9. A support block 11 corresponding to the wing plate 13 is provided on the central sleeve 9. A spring groove is formed between the support block 11, the wing plate 13 and the central sleeve 9. An arc guide shaft 15 for the circumferential tension spring 14 to pass through is also provided between the wing plate 13 and the corresponding support block 11. The four circumferential tension springs 14 are passed through the arc guide shaft 15 and fixed one by one in the above-mentioned spring groove. One end of the circumferential tension spring 14 is welded to the wing plate 13. The other end is welded on the support block 11, and three groups of the above-mentioned circumferential tension springs 14 are arranged at equal intervals in the axial direction between the central shaft 16 and the central sleeve 9, one group is arranged at the upper end of the central sleeve 9, one group is arranged at the lower end of the central sleeve 9, and the other group is arranged in the middle of the central sleeve 9, and the four material scrapers 25 correspond to the four support blocks 11 one by one. When the circumferential tension spring 14 is in a natural state when the resistance suffered by the material scraper 25 is within a set range, the material scraper 25 rotates with the central shaft 16; when the circumferential tension spring 14 is in a stretched state when the resistance suffered by the material scraper 25 exceeds the set range, the central sleeve 9 rotates relative to the central shaft 16.

[0050] like Figure 5 , Fig.10 and Fig.11 As shown, the circumferential edge of the unloading plate 43 is fixedly connected to the evaporation sleeve 48, and a surrounding plate 44 and a sleeve 45 sleeved outside the central axis 16 are provided on the unloading plate 43. The unloading plate 43, the surrounding plate 44 and the sleeve 45 form a unloading trough 34 for storing materials. A plurality of unloading holes 42 are provided near the circumferential edge of the unloading plate 43, and the adjusting plate 35 is provided with adjusting holes 40 corresponding to the unloading holes 42 one by one, and the aperture of the adjusting hole 40 is equal to the aperture of the unloading hole 42. The adjustment plate 35 is sleeved outside the central axis 16 and attached to the lower side of the blanking plate 43. A reset volute spring 39 is provided between the adjustment plate 35 and the blanking plate 43. The inner end of the reset volute spring 39 is connected to the adjustment plate 35, and the outer end of the reset volute spring 39 is connected to the blanking plate 43. The inner end height of the reset volute spring 39 is lower than the outer end height, which is used to drive the adjustment plate 35 to reverse. The lower end of the sleeve 45 is provided with a coil spring cavity 41 for placing the reset volute spring 39.

[0051] like Figure 5 and Figure 7As shown, the transmission structure includes a driving plate 50, a driven plate 51, a first transmission plate 27 and a second transmission plate 26, which are all sleeved outside the central axis 16. The driving plate 50 is fixed to the upper end of the central sleeve 9, and the driven plate 51 is fixed to the lower end of the adjustment plate 35. The first transmission plate 27 is provided with a slider extending axially along the central axis 16, and the central axis 16 is provided with a slide groove adapted to the slider. The first transmission plate 27 and the central axis 16 are slidably assembled in the axial direction of the central axis 16 through the slider and the slide groove. Two telescopic rods 30 are provided between the second transmission plate 26 and the blanking plate 43 to ensure that the second transmission plate 26 only slides axially along the central axis 16. One end of the telescopic rod 30 is connected to the second transmission plate 26, and the other end is connected to the blanking plate 43.

[0052] like Figure 5 and Figure 7 As shown, the driving disk 50 is provided with four first guide bevels 32 evenly distributed on the circumference, the lower side of the first transmission disk 27 is provided with a first guide block 28 corresponding to the first guide bevels 32 one by one, the upper side of the first transmission disk 27 is provided with four second guide blocks 33 for pushing the second transmission disk 26 to move upward, the lower side of the driven disk 51 is provided with four second guide bevels 31, and the upper side of the second transmission disk 26 is provided with four third guide blocks 29 corresponding to the second guide bevels 31 one by one, so as to push the second guide bevels 31 when the second transmission disk 26 moves upward to drive the adjustment plate 35 to rotate.

[0053] like Figure 5 , Fig. 9 and Fig.14 As shown, the baffle 18 is fixed on the central shaft 16 and is located between the first transmission disc 27 and the second transmission disc 26. The baffle 18 is provided with an avoidance opening 53 for the second guide block 33 to pass through. The baffle 18 is used to prevent the position of the material falling from being biased towards the position of the central shaft 16 when the material falls, that is, the baffle 18 is used to prevent the material from falling directly, and the outer side of the baffle 18 is provided with a falling slope 54 with a height decreasing from the inside to the outside, which is conducive to the material falling on the baffle 18 to slide to a position close to the inner wall of the evaporation sleeve 48 according to the gravity of the material itself.

[0054] like Figure 3 , Figure 4 , Fig. 9 and Fig.13As shown, a cleaning plate 17 is provided on the material scraper 25 for cleaning the residual material on the inner wall of the evaporation sleeve 48. A cleaning slope is also provided on the cleaning plate 17 near the inner wall of the evaporation sleeve 48. A liquid passage 10 is provided between the material scraper 25 and the corresponding support block 11. One end of the liquid passage 10 is fixed to the support block 11 on the side opposite to the spring groove, and the other end is fixed to the material scraper 25. Pistons with rods are provided at both ends of the liquid passage 10. The piston with rod defined on the support block 11 is the first piston with rod 12, and the piston with rod defined on the material scraper 25 is the second piston with rod 47. A conducting liquid is provided in the liquid passage 10. When the central sleeve 9 rotates relative to the central axis 16, the circumferential tension spring 14 stretches The wing plate 13 pushes the first piston with rod 12, and the first piston with rod 12 squeezes the liquid to increase the pressure of the liquid, and then pushes the second piston with rod 47 to move through the liquid, and the second piston with rod 47 pushes the cleaning plate 17 to move toward the inner wall of the evaporation sleeve 48, and even closely adheres to the inner wall of the evaporation sleeve 48 to clean the inner wall of the evaporation sleeve 48, and two reset springs 52 are arranged axially at equal intervals along the central axis 16 between the cleaning plate 17 and the corresponding material scraper 25, and the reset springs 52 are used to reset the cleaning plate 17. In other embodiments, the number of reset springs 52 on each material scraper 25 can be reasonably selected according to actual needs.

[0055] like Figure 6 As shown, a corresponding residue scraper 24 is provided on the material scraper 25 on the side facing away from the cleaning plate 17, which is used to clean the residual material on the material scraper 25. A transmission rack 21 extending radially along the central sleeve 9 is provided on the cleaning plate 17. A transmission gear 22 meshing with the transmission rack 21 is also provided on the material scraper 25. An external threaded column 23 extending in the up-and-down direction is coaxially provided on the transmission gear 22. The external threaded column 23 is rotatably assembled with the material scraper 25 through a rotating bearing. The external threaded column 23 is arranged close to the central sleeve 9. An internal threaded hole matching the external threaded column 23 is provided on the residue scraper 24. The residue scraper 24 and the external threaded column 23 slide up and down to cooperate, so as to clean the residual material on the material scraper 25 when the cleaning plate 17 is extended.

[0056] like Fig. 9 and Fig.12As shown, the base 5 has a material collection chamber 38 in communication with the tube cavity of the evaporation sleeve 48, and a residue collection seat 20 is provided in the material collection chamber 38. The residue collection seat 20 is fixedly sleeved on the central shaft 16, and a residue collection groove 37 is provided on the residue collection seat 20 to collect the scraped residual materials. A buffer seat 19 corresponding to the material scraper 25 is movably mounted on the residue collection seat 20 along the radial direction of the central shaft 16, and the buffer seat 19 is connected to the corresponding cleaning plate 17. The buffer seat 19 is provided with a buffer groove, and the bottom surface of the buffer groove is a sliding slope 46 inclined toward the inside of the residue collection seat 20, so as to slide the residual materials scraped on the sliding slope 46 into the residue collection groove 37 by the gravity of the residual materials themselves. The width of the buffer seat 19 is greater than the length of the spring groove to prevent the buffer seat 19 from rotating to a position away from the material scraper 25 when the central shaft 16 and the material scraper 25 rotate relative to each other. In other embodiments, on the premise of ensuring that the number of material scrapers 25, buffer seats 19 and circumferential tension springs 14 is consistent, the number of material scrapers 25, buffer seats 19 and circumferential tension springs 14 can be reasonably selected according to actual needs.

[0057] The working process of the present invention is as follows:

[0058] When the material falls at a faster speed, more material falls on the inner wall of the evaporation sleeve 48, and the resistance of the material scraper 25 becomes larger. When it is greater than the tension of the circumferential tension spring 14, the circumferential tension spring 14 begins to stretch, the central sleeve 9 and the central axis 16 rotate relatively, the driving disc 50 drives the first transmission disc 27 to slide upward, the first driving disc 50 pushes the second transmission disc 26 to move upward, and the second transmission disc 26 drives the adjustment plate 35 to rotate, and the size of the overlapping area between the discharge hole 42 and the adjustment hole 40 becomes smaller to reduce the amount of material falling per unit time, thereby ensuring that the amount of material entering the evaporation sleeve 48 per unit time is adapted to the resistance of the material scraper 25, ensuring that the material film on the inner wall of the evaporation sleeve 48 is evenly distributed, and ensuring the separation effect of dioxane.

[0059] At the same time, the wing plate 13 pushes the first piston with rod 12 to make the cleaning plate 17 extend to clean the inner wall of the evaporation sleeve 48, the transmission rack 21 on the cleaning plate 17 drives the external thread column 23 to rotate, and the residue scraper 24 slides along the material scraper 25 in the up and down direction to clean the residual material on the material scraper 25. When the material scraper 25 has finished cleaning the accumulated material on the evaporation sleeve 48, the resistance to the material scraper 25 disappears, the circumferential tension spring 14 returns to the natural state, the central sleeve 9 rotates synchronously with the central shaft 16, the reset scroll spring 39 drives the adjustment plate 35 to restore the initial position, and the reset tension spring 52 drives the cleaning plate 17 to restore the initial position, and the cleaning plate 17 drives the residue scraper 24 to restore the initial position.

[0060] This solution can adjust the size of the overlapping area between the discharge hole 42 and the adjustment hole 40 according to the size of the resistance encountered by the material scraper 25, that is, adjust the amount of material entering the evaporation sleeve 48 per unit time, ensure the adaptation of the amount of material entering the evaporation sleeve 48 per unit time and the resistance encountered by the material scraper 25, ensure the uniform distribution of the material film on the inner wall of the evaporation sleeve 48, and improve the separation effect of dioxane.

[0061] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0062] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dioxane separation device, comprising a heating sleeve, an evaporation sleeve arranged in the heating sleeve, a central shaft rotatably mounted in the evaporation sleeve, and a driving member connected to the central shaft, characterized in that: The central axis is provided with a blanking plate, an adjusting plate and a scraper assembly in sequence from top to bottom; The circumferential edge of the blanking plate is connected to the evaporation sleeve, a plurality of blanking holes are provided near the circumferential edge of the blanking plate, and the adjustment plate is provided with adjustment holes corresponding to the blanking holes one by one; The scraper assembly includes a central sleeve coaxially sleeved outside the central axis and a plurality of material scrapers uniformly distributed in the circumferential direction of the central sleeve, a gap for forming a film is left between the material scraper and the inner wall of the evaporation sleeve, a plurality of circumferential tension springs uniformly distributed in the circumferential direction of the central axis are connected between the central sleeve and the central axis, the circumferential tension spring is in a natural state when the resistance of the material scraper is within a set range, so that the material scraper rotates with the central axis; the circumferential tension spring is in a stretched state when the resistance of the material scraper exceeds the set range, so that the central sleeve rotates relative to the central axis; A transmission structure is provided between the central sleeve and the adjustment plate, so that when the central sleeve rotates relative to the central axis, the adjustment plate is driven to rotate, and the adjustment plate rotates to adjust the size of the overlapping area between the feeding hole and the corresponding adjustment hole; The transmission structure comprises a driving disk, a first transmission disk and a second transmission disk, the driving disk is connected to a central sleeve, a plurality of first guide inclined surfaces uniformly distributed on the circumference are provided on the driving disk, the first transmission disk and the central shaft are slidably matched in the axial direction of the central shaft and are non-rotatably matched in the radial direction of the central shaft, a first guide block corresponding to the first guide inclined surface is provided on the lower side of the first transmission disk, and a plurality of second guide blocks for pushing the second transmission disk to move upward are provided on the upper side of the first transmission disk; the second transmission disk is sleeved outside the central shaft, and a plurality of telescopic parts are connected between the second transmission disk and the blanking plate, a plurality of second guide inclined surfaces are provided on the lower side of the adjusting plate, and a plurality of third guide blocks corresponding to the second guide inclined surfaces are provided on the upper side of the second transmission disk, so as to push the second guide inclined surface to drive the adjusting plate to rotate when the second transmission disk moves upward; A return volute spring is provided between the adjusting plate and the blanking plate, the inner end of the return volute spring is connected to the adjusting plate, the outer end of the return volute spring is connected to the blanking plate, the inner end height of the return volute spring is lower than the outer end height, and is used to drive the adjusting plate to reverse.

2. A separation device for dioxane according to claim 1, characterized in that: The aperture of the adjusting hole is equal to the aperture of the feeding hole.

3. A separation device for dioxane according to claim 1, characterized in that: The central shaft is provided with a plurality of wing plates corresponding to the circumferential tension springs on the shaft section corresponding to the central sleeve, the central sleeve is provided with support blocks corresponding to the wing plates, a spring groove is formed between the support blocks, the wing plates and the central sleeve, and an arc-shaped guide shaft is also provided between the wing plates and the corresponding support blocks for the circumferential tension springs to pass through.

4. A device for separating dioxane according to any one of claims 1 to 3, characterized in that: A baffle is provided at the lower side of the adjustment plate, and a falling slope with a decreasing height from the inside to the outside is provided on the outer side of the baffle. The baffle is coaxially fixed with the central axis, and an escape opening is provided on the baffle for the second guide block to pass through.

5. A separation device for dioxane according to claim 3, characterized in that: A cleaning plate for cleaning residual materials on the inner wall of the evaporation sleeve is movably mounted on the material scraper along the radial direction of the central sleeve, and a cleaning inclined surface is arranged near the inner wall of the evaporation sleeve on the cleaning plate.

6. A separation device for dioxane according to claim 5, characterized in that: A liquid pipe is provided between the material scraper and the corresponding supporting block, one end of the liquid pipe is connected to the supporting block, and the other end is connected to the material scraper, and both ends of the liquid pipe are respectively slidably sealed and equipped with pistons with rods, and liquid is provided in the liquid pipe, the piston with rod close to the cleaning plate is connected to the cleaning plate, and the piston with rod close to the wing plate moves under the pressure of the wing plate; a plurality of reset tension springs arranged at intervals up and down are connected between the material scrapers corresponding to the cleaning plates, and the reset tension springs can be expanded and contracted in the radial direction of the central sleeve, and are used for resetting the cleaning plate.

7. A separation device for dioxane according to claim 6, characterized in that: A plurality of supporting legs distributed in a circumference are connected to the outer wall of the heating sleeve to overhead the heating sleeve, and the lower ends of the heating sleeve and the evaporating sleeve are detachably connected with a base; a material collecting cavity connected to the tube cavity of the evaporating sleeve is provided in the base, a residue collecting seat is provided in the material collecting cavity, and a buffer groove corresponding to the material scraper is movably mounted on the residue collecting seat along the radial direction of the central axis, the buffer groove is connected to the corresponding cleaning plate, and the bottom surface of the buffer groove is a sliding slope inclined toward the inner side of the residue collecting seat.

8. A dioxane separation device according to claim 7, characterized in that: The material scraper is provided with a corresponding residue scraper on the side facing away from the cleaning plate, which is used to clean the material residue on the material scraper. The cleaning plate is provided with a transmission rack extending radially along the central sleeve. The top of the material scraper is rotatably equipped with a transmission gear meshing with the transmission rack. An external threaded column extending in the up and down directions is coaxially connected to the transmission gear. The external threaded column is arranged close to the central sleeve, and the upper and lower ends are respectively rotatably assembled with the material scraper. The residue scraper is provided with an internal threaded hole that cooperates with the thread of the external threaded column.

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