An epoxy resin concentration device

Abstract

The present invention belongs to the technical field of epoxy resins, and particularly relates to an epoxy resin concentration device, which includes an outer cylinder, a support frame, a first motor, a pump impeller, a first collection component, a second collection component, and an inner cylinder. In the present invention, the spiral heating plate will be driven to rotate during operation, and the solvent passing through it is stirred by the rotating spiral heating plate, so as to improve the evaporation and concentration efficiency of the solvent through stirring; in addition, by rotating, the heat receiving points of the solvent on the spiral heating plate can be continuously changed. At the same time, because the spiral heating plate is spiral, the spiral heating plate can push the solvent passing through it to flow inward or outward along the spiral grooves on it through the spiral grooves on it during rotation, and the heat receiving points are continuously changed through the flow; that is, the present invention can improve the uniformity of solvent heating by designing the rotation of the spiral heating plate. The spiral heating plate designed in the present invention has both the functions of stirring and heating at the same time, and such an integrated design can greatly reduce the equipment cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of epoxy resins, and particularly relates to an epoxy resin concentration device. Background Art

[0002] Epoxy resin is a kind of polymer, which refers to the general name of a class of polymers containing more than two epoxy groups in the molecule. It is a polycondensation product of epichlorohydrin and bisphenol A or polyol. Due to the chemical activity of the epoxy group, it can be ring-opened by a variety of compounds containing active hydrogen and cured and crosslinked to form a network structure. Therefore, it is a thermosetting resin.

[0003] Waste water is generated during the production of epoxy resin. The waste water contains a large amount of sodium chloride and unreacted sodium hydroxide. In subsequent treatment, it needs to go through oil-water separation, evaporation concentration, and centrifugal separation to finally produce 30% liquid caustic soda.

[0004] For the evaporation concentration process, a concentration device is currently used; during the evaporation concentration process, there is an optimal arrangement position for the heating wires or heating plates. Under such an arrangement, the heating uniformity can reach the limit, that is, when the heating wires and heating plates are reasonably arranged, the evaporation rate of the solvent can reach the highest; through analysis, it can be seen that the evaporation of the solvent needs to occur on the surface of the solvent. When steam is generated during the evaporation of the solvent, it will be absorbed by the cold solvent in the upper part and the steam cannot be discharged in time. This is a key factor restricting the improvement of the evaporation concentration efficiency.

[0005] The present invention designs a multi-layer steam collection structure in the solvent. The designed steam collection structure can timely take away the steam through reasonable air passage design. Summary of the Invention

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An epoxy resin concentration device, which includes an outer cylinder, a support frame, a first motor, a pump impeller, a first collection component, a second collection component, and an inner cylinder. The outer cylinder is installed on the upper side of the support frame, and the vertically communicating inner cylinder is fixedly installed inside the outer cylinder; a pump impeller is rotatably installed inside the inner cylinder, and a first motor capable of driving the pump impeller to rotate is fixedly installed on the outer wall of the outer cylinder; two first collection components and one second collection component are sequentially installed between the inner cylinder and the outer cylinder from top to bottom.

[0008] The first collection component includes a first collection cover and a spiral heating plate. The spiral heating plate is installed between the inner cylinder and the outer cylinder, and the first collection cover is installed between the inner cylinder and the outer cylinder and is located above the spiral heating plate. Two annular partitions are installed on the inner side of the first collection cover, and the internal space of the first collection cover is divided into three areas: inner, middle, and outer by the two annular partitions. The bottom surface of the annular partition is higher than the bottom surface of the first collection cover. The upper end of the inner area has an air inlet, and the upper end of the outer area has an exhaust outlet.

[0009] The second collection component includes a second collection cover, heating wires, and an annular mounting plate. The annular mounting plate is fixedly installed between the inner cylinder and the outer cylinder, and multiple layers of heating wires are evenly arranged on the annular mounting plate from top to bottom. A plurality of second collection covers are fixedly installed circumferentially and evenly on the annular mounting plate and are distributed layer by layer. A diversion plate is fixedly and eccentrically installed on the inner side of the second collection cover. The upper end of the second collection cover has an air inlet, and an exhaust outlet is provided on the side wall surface of the second collection cover where the diversion plate is installed.

[0010] As a preferred solution, a circular feeding port is opened at the top of the outer cylinder, and a top cover is installed on the circular feeding port. The bottom of the outer cylinder has a discharging port, and a switching valve is installed on the discharging port. The inner cylinder is fixedly installed inside the outer cylinder through a second support structure.

[0011] As a preferred solution, a pump impeller is rotatably installed inside the inner cylinder through two third support structures distributed vertically. The upper end of the rotation shaft of the pump impeller is fixedly installed with a fourth gear. The second rotating shaft is rotatably installed on the outer cylinder, and one end of the second rotating shaft penetrates into the inner cylinder and is fixedly installed with a third gear. The third gear meshes with the fourth gear. The first motor is fixedly installed on the outer side of the outer cylinder, and the output shaft of the first motor is fixedly connected to the second rotating shaft.

[0012] As a preferred solution, the spiral heating plates in the upper and lower layers of the first collection component are rotatably installed between the inner cylinder and the outer cylinder. A second motor is fixedly installed on the outer wall of the outer cylinder, and the second motor can drive the two spiral heating plates in the upper and lower layers of the first collection component to rotate.

[0013] As a preferred solution, two groups of guide rings are fixedly installed vertically on both the inner wall surface of the outer cylinder and the outer wall surface of the inner cylinder. The inner installation ring is rotatably installed outside the inner cylinder through the guide ring on the inner cylinder, and the outer installation ring is rotatably installed on the inner wall of the outer cylinder through the guide ring on the outer cylinder. The spiral heating plate is installed between the inner installation ring and the outer installation ring. The inner end of the spiral heating plate is fixedly connected to the inner installation ring, and the outer end of the spiral heating plate is fixedly connected to the outer installation ring.

[0014] As a preferred solution, the inner installation ring and the outer installation ring are fixedly connected through multiple connecting plates evenly distributed circumferentially.

[0015] As a preferred solution, the annular inner partition is fixedly installed on the outer side of the inner cylinder, and the annular outer partition is fixedly installed on the inner wall of the outer cylinder. Both the annular inner partition and the annular outer partition are located above the spiral heating plate and below the first collection cover.

[0016] As a preferred solution, the first collection cover is of an annular structure, and the unilateral cross-section of the first collection cover is bowl-shaped; the upper end of the first collection cover is provided with an inner and outer distributed first intake pipe and a first exhaust pipe through a support piece. A plurality of first connecting pipes are fixedly installed between the first intake pipe, the first exhaust pipe and the first collection cover in a circumferentially uniform manner; the lower end of the first connecting pipe connecting the first intake pipe and the first collection cover communicates with the innermost space among the three spaces separated by two annular partitions in the first collection cover; the lower end of the first connecting pipe connecting the first exhaust pipe and the first collection cover communicates with the outermost space among the three spaces separated by two annular partitions in the first collection cover; the middle of the first collection cover is installed on the inner cylinder, and the outer side of the first collection cover is fixedly installed on the inner wall surface of the outer cylinder.

[0017] As a preferred solution, the fixing ring is installed on the outer side of the inner cylinder; an installation ring is fixedly installed in the middle of the first collection cover; the middle of the first collection cover is rotatably installed on the fixing ring through the installation ring; a first rotating shaft is rotatably installed in the material discharge port at the lower end of the outer cylinder through a first support structure. A first gear is fixedly installed at the lower end of the first rotating shaft; a second motor is fixedly installed on the outer wall surface at the lower end of the outer cylinder, and the output shaft of the second motor penetrates into the material discharge port and is fixedly installed with a second gear, and the second gear meshes with the first gear; a connecting structure is fixedly installed at the upper end of the first rotating shaft, and the upper end of the connecting structure is fixedly connected with the installation inner ring in the lower collection assembly one; the fixing ring in the lower collection assembly one is rotatably installed on the inner cylinder, and the fixing ring and the installation inner ring in this collection assembly one are fixedly connected through a plurality of circumferentially uniformly distributed connecting pieces; the fixing ring in the lower collection assembly one and the installation inner ring in the upper collection assembly one are fixedly connected through a plurality of circumferentially uniformly distributed transmission connecting rods; the fixing ring in the upper collection assembly one is fixedly installed on the inner cylinder.

[0018] As a preferred solution, the cross-section of the annular installation plate is formed by connecting a plurality of inverted V-shapes; each layer of the second collection covers is circumferentially uniformly distributed in the V-shaped grooves of the annular installation plate; the second collection cover is bowl-shaped, and a second connecting pipe is fixedly installed on the upper side of the second collection cover. A third connecting pipe is fixedly installed at a lower position on the outer wall surface of the second collection cover where the drainage plate is installed; a second intake pipe is fixedly installed on the upper side of all the second connecting pipes installed on all the second collection covers in the same layer, and a second exhaust pipe is fixedly installed on the upper side of all the third connecting pipes installed on all the second collection covers in the same layer.

[0019] Compared with the existing technologies, the advantages of the present invention are as follows:

[0020] 1. In the present invention, the spiral heating disk will be driven to rotate during operation. The rotating spiral heating disk stirs the solvent passing through it, and the evaporation and concentration efficiency of the solvent is improved through stirring. In addition, by rotating, the heat receiving points of the solvent on the spiral heating disk can be continuously changed. At the same time, because the spiral heating disk is spiral, the spiral heating disk can push the solvent passing through it to flow inward or outward along the spiral groove on it during rotation, and the heat receiving points are continuously changed through the flow. That is, the present invention can improve the uniformity of solvent heating by designing the rotation of the spiral heating disk. The spiral heating disk designed in the present invention has both the functions of stirring and heating at the same time. Such an integrated design can greatly reduce the equipment cost.

[0021] 2. In the present invention, three layers of collection components are arranged between the outer cylinder and the inner cylinder, and two different gas flow paths are designed in the collection cover of the collection components. Through this series of designs, it is ensured that the equipment has a high evaporation and concentration effect.

[0022] 3. The present invention designs two different collection components. The first collection component is suitable for solvents with low concentration, and the second collection component is suitable for solvents with high concentration. However, because the second collection component is relatively complex and the cost is relatively high, while the first collection component has a relatively simple structure and a relatively low cost. Therefore, two first collection components and one second collection component are arranged from bottom to top between the outer cylinder and the inner cylinder of the present invention. The solvent is preliminarily concentrated through the two first collection components, and the solvent after preliminary concentration is then concentrated again through the second collection component. While ensuring the concentration effect, the equipment cost is reduced to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall component appearance.

[0024] Figure 2 It is a schematic diagram of the support frame structure.

[0025] Figure 3 It is a schematic diagram of the first rotating shaft drive.

[0026] Figure 4 It is a schematic diagram of the distribution of the first collection component.

[0027] Figure 5 It is a schematic diagram of the distribution of the second collection component.

[0028] Figure 6 It is a schematic diagram of the outer cylinder structure.

[0029] Figure 7 It is a schematic diagram of the pump drive.

[0030] Figure 8It is a schematic diagram of the connection of the upper and lower two collecting components 1.

[0031] Figure 9 It is a schematic diagram of the structure of the upper collecting component 1.

[0032] Figure 10 It is a schematic diagram of the structure of the lower collecting component 1.

[0033] Figure 11 It is a schematic diagram of the structure of the first collecting cover.

[0034] Figure 12 It is a schematic diagram of the installation of the spiral heating plate.

[0035] Figure 13 It is a schematic diagram of the connection of the installation inner ring and the installation outer ring.

[0036] Figure 14 It is a schematic diagram of the installation of the transmission connecting rod.

[0037] Figure 15 It is a schematic diagram of the structure of the collecting component 2.

[0038] Figure 16 It is a schematic diagram of the distribution of the second collecting cover.

[0039] Figure 17 It is a schematic diagram of the appearance of the annular mounting plate.

[0040] Figure 18 It is a schematic diagram of the structure of the annular mounting plate.

[0041] Figure 19 It is a schematic diagram of the structure of the second collecting cover.

[0042] Names of the reference numerals in the figure: 1. Outer cylinder; 2. First motor; 3. Support frame; 4. Second motor; 5. On-off valve; 6. Pump impeller; 7. Collecting component 1; 8. Collecting component 2; 9. First support structure; 10. First rotating shaft; 11. First gear; 12. Second gear; 13. Inner cylinder; 14. Second support structure; 15. Top cover; 16. Guide ring; 17. Discharge port; 18. Second rotating shaft; 19. Third gear; 20. Fourth gear; 21. Third support structure; 22. Transmission connecting rod; 23. Installation inner ring; 24. Connecting plate; 25. Installation outer ring; 26. Annular outer partition; 27. First collecting cover; 28. First air outlet pipe; 29. Fixed ring; 30. First air inlet pipe; 31. Annular inner partition; 32. Connection structure; 33. Spiral heating plate; 34. Support piece; 35. First connecting air pipe; 36. Installation ring; 37. Connecting piece; 38. Second collecting cover; 39. Heating wire; 40. Annular mounting plate; 41. Second air inlet pipe; 42. Second exhaust pipe; 43. Second connecting air pipe; 44. Third connecting air pipe; 45. Drainage plate; 46. Annular partition. Detailed implementation manners

[0043] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments or drawings are used to illustrate the present invention, but not to limit the scope of the present invention.

[0044] An epoxy resin concentration device, as Figure 1 shown, it includes an outer cylinder 1, a first motor 2, a support frame 3, a switching valve 5, a pump impeller 6, a first collection assembly 7, a second collection assembly 8, and an inner cylinder 13. Among them, as Figure 1 、 2 shown, the outer cylinder 1 is installed on the upper side of the support frame 3. As Figure 6 shown, a circular feeding port is opened at the top of the outer cylinder 1, and a top cover 15 is installed on the circular feeding port. A discharging port 17 is provided at the bottom of the outer cylinder 1, and a switching valve 5 is installed on the discharging port 17; Two groups of guide rings 16 are fixedly installed on the inner wall surface of the outer cylinder 1 up and down; As Figure 5 shown, an inner cylinder 13 that is vertically communicated is fixedly installed in the outer cylinder 1 through a second support structure 14, and two groups of guide rings 16 are fixedly installed on the outer wall of the inner cylinder 13 up and down; As Figure 4 、 7 shown, the pump impeller 6 is rotatably installed in the inner cylinder 13 through two third support structures 21 distributed up and down. The upper end of the rotating shaft of the pump impeller 6 is fixedly installed with a fourth gear 20. The second rotating shaft 18 is rotatably installed on the outer cylinder 1, and one end of the second rotating shaft 18 penetrates into the inner cylinder 13 and is fixedly installed with a third gear 19. The third gear 19 meshes with the fourth gear 20; The first motor 2 is fixedly installed on the outside of the outer cylinder 1, and the output shaft of the first motor 2 is fixedly connected to the second rotating shaft 18; As Figure 1 、 4 、5 shown, two first collection assemblies 7 and one second collection assembly 8 are sequentially installed between the outer cylinder 1 and the inner cylinder 13 from top to bottom.

[0045] A sealing structure is installed between the top cover 15 and the circular feeding port; After adding the original solvent to be concentrated into the outer cylinder 1, the top cover 15 is covered on the circular feeding port, and the circular feeding port is sealed by the top cover 15 to ensure the sealing performance of the outer cylinder 1 during the subsequent evaporation and concentration process.

[0046] In the present invention, the solvent after evaporation and concentration is discharged through the discharging port 17, and the function of the switching valve 5 is to control the opening and closing of the discharging port 17.

[0047] When the first motor 2 operates, it can drive the second rotating shaft 18 to rotate. The rotation of the second rotating shaft 18 drives the third gear 19 to rotate, the rotation of the third gear 19 drives the fourth gear 20 to rotate, and the rotation of the fourth gear 20 drives the pump impeller 6 to rotate. The rotating pump impeller 6 provides flowing power for the original solvent added into the outer cylinder 1, so that the original solvent in the outer cylinder 1 circulates inside and outside the inner cylinder 13. In the present invention, since the cross-sectional area of the inner cylinder 13 is much smaller than the cross-sectional area between the inner cylinder 13 and the outer cylinder 1, the flow rate of the solvent in the inner cylinder 13 will inevitably decrease after flowing into the space between the inner cylinder 13 and the outer cylinder 1. Therefore, during the operation of the present invention, it is necessary to drive the pump impeller 6 to rotate at a high speed through the second motor 4 to ensure the normal circulation of the original solvent inside and outside the inner cylinder 13.

[0048] As Figure 9 、 10 shown, the first collecting component 7 includes an installation inner ring 23, a connecting plate 24, an installation outer ring 25, an annular outer partition plate 26, a first collecting cover 27, a first air outlet pipe 28, a fixing ring 29, a first air inlet pipe 30, an annular inner partition plate 31, a spiral heating plate 33, a first connecting air pipe 35, and an installation ring 36. Among them, as Figure 4 shown, the installation inner ring 23 is rotatably installed on the outer side of the inner cylinder 13 through a guiding ring 16 on the inner cylinder 13, and the installation outer ring 25 is rotatably installed on the inner wall of the outer cylinder 1 through a guiding ring 16 on the outer cylinder 1; as Figure 12 、 13 shown, the installation inner ring 23 and the installation outer ring 25 are fixedly connected through a plurality of connecting plates 24 evenly distributed in the circumferential direction; the spiral heating plate 33 is installed between the installation inner ring 23 and the installation outer ring 25, the inner end of the spiral heating plate 33 is fixedly connected to the installation inner ring 23, and the outer end of the spiral heating plate 33 is fixedly connected to the installation outer ring 25; as Figure 1 、 4 shown, the annular inner partition plate 31 is fixedly installed on the outer side of the inner cylinder 13, and the annular outer partition plate 26 is fixedly installed on the inner wall of the outer cylinder 1. Both the annular inner partition plate 31 and the annular outer partition plate 26 are located above the spiral heating plate 33; the fixing ring 29 is installed on the outer side of the inner cylinder 13, as Figure 11As shown, the first collection cover 27 is of an annular structure, and the unilateral cross-section of the first collection cover 27 is bowl-shaped; two annular partitions 46 are installed inside the first collection cover 27, and the inner space of the first collection cover 27 is divided into three parts by the two annular partitions 46. The bottom surface of the annular partition 46 is higher than the bottom surface of the first collection cover 27; at the upper end of the first collection cover 27, a first intake pipe 30 and a first exhaust pipe 28 distributed inside and outside are installed through a support piece 34. A plurality of first connecting air pipes 35 are fixedly installed circumferentially and uniformly between the first intake pipe 30 and the first exhaust pipe 28 and the first collection cover 27 respectively; the lower end of the first connecting air pipe 35 connected between the first intake pipe 30 and the first collection cover 27 communicates with the inner space among the three parts separated by the two annular partitions 46 inside the first collection cover 27; the lower end of the first connecting air pipe 35 connected between the first exhaust pipe 28 and the first collection cover 27 communicates with the outer space among the three parts separated by the two annular partitions 46 inside the first collection cover 27; an installation ring 36 is fixedly installed in the middle of the first collection cover 27; as Figure 4 shown, the middle of the first collection cover 27 is rotatably installed on the fixed ring 29 through the installation ring 36, and the outside of the first collection cover 27 is fixedly installed on the inner wall surface of the outer cylinder 1.

[0049] In order to ensure the evaporation and concentration efficiency of the present invention, the diameter difference between the inner cylinder 13 and the outer cylinder 1 designed is relatively large, so the diameter difference between the inner installation ring 23 and the outer installation ring 25 installed on the inner cylinder 13 and the outer cylinder 1 is also relatively large; in order to ensure that the inner installation ring 23 and the outer installation ring 25 at both ends of the fixed spiral heating plate 33 can rotate in a relatively stable state when being driven to rotate, therefore, in the present invention, a plurality of connecting plates 24 distributed circumferentially and uniformly are fixedly connected between the inner installation ring 23 and the outer installation ring 25, and the inner installation ring 23 and the outer installation ring 25 are fixedly connected through the connecting plates 24; when the inner installation ring 23 rotates, it can drive the outer installation ring 25 to rotate together through the connecting plates 24, that is, when the spiral heating plate 33 is driven to rotate, the inner end and the outer end can rotate simultaneously together, and there will be no phenomenon of sequential delay between the inner end and the outer end; that is, in the present invention, the spiral heating plate 33 will not shrink during the rotation process, and the strength of the spiral heating plate 33 will not be affected by the shrinkage, which protects the spiral heating plate 33 to a certain extent.

[0050] In the present invention, the spiral heating plate 33 is driven to rotate during operation. The rotating spiral heating plate 33 stirs the solvent passing through it, thereby improving the evaporation and concentration efficiency of the solvent through stirring. Additionally, the reasons for designing the rotation of the spiral heating plate 33 include: First, by rotating, the heat-receiving points of the solvent on the spiral heating plate 33 are continuously changed. Assuming that a certain portion of the solvent remains stationary, during the rotation of the spiral heating plate 33, this portion of the solvent will be uniformly heated by all the circumferential regions of the spiral heating plate 33 in contact with it, rather than being heated point by point. Second, since the spiral heating plate 33 is spiral-shaped, during rotation, the spiral heating plate 33 can push the solvent passing through it to flow inward or outward along the spiral grooves on it, and the heat-receiving points are continuously changed through the flow. That is, by designing the rotation of the spiral heating plate 33 in the present invention, the uniformity of solvent heating can be improved.

[0051] The spiral heating plate 33 in the present invention has a certain thickness. Since heating components are uniformly arranged inside the spiral heating plate 33, the entire surface of the spiral heating plate 33 can be heated. That is, the thicker the spiral heating plate 33, the larger the heat-receiving area exerted on the solvent, and the better the heat-induced evaporation effect of the solvent. Additionally, the thicker the spiral heating plate 33, the greater the stirring effect and the inward and outward pushing effects on the solvent during rotation.

[0052] The spiral heating plate 33 designed in the present invention simultaneously has two functions: stirring and heating. Such an integrated design can greatly reduce the equipment cost.

[0053] The first collection cover 27 and the second collection cover 38 in the present invention are both bowl-shaped. When the original solvent is poured into the outer cylinder 1, the gas inside the first collection cover 27 and the second collection cover 38 cannot be discharged. Therefore, a liquid surface will form on the lower sides of the first collection cover 27 and the second collection cover 38.

[0054] In the present invention, an annular inner partition 31 and an annular outer partition 26 are provided on the inner cylinder 13 and the outer cylinder 1. The functions of the annular inner partition 31 and the annular outer partition 26 are that when the solvent flows upward from the lower side of the spiral heating plate 33 through the annular inner partition 31 and the annular outer partition 26, the annular inner partition 31 and the annular outer partition 26 play a role in guiding the flowing solvent, ensuring that all the solvent flowing upward through the spiral heating plate 33 can pass through the first collection cover 27. That is, by designing the annular inner partition 31 and the annular outer partition 26 in the present invention, a flow path is created between the spiral heating plate 33 and the first collection cover 27, ensuring that the solvent heated by the spiral heating plate 33 can all flow into the lower side of the first collection cover 27, and the steam generated in the solvent is collected and discharged through the first collection cover 27.

[0055] The internal space of the first collection cover 27 of the present invention is divided into inner, middle and outer regions by two annular partitions 46. The inner region is externally connected to a first intake pipe 30 through a plurality of first connecting air pipes 35 evenly distributed circumferentially. The outer region is externally connected to a first outlet pipe 28 through a plurality of first connecting air pipes 35 evenly distributed circumferentially. When the first intake pipe 30 is inflated, the gas enters the inner region through the corresponding first connecting air pipes 35, then passes through the middle region and the outer region in sequence, and finally enters the first outlet pipe 28 through the corresponding first connecting air pipes 35 and is finally discharged. The gas in the flow will carry away the steam evaporated from the solvent liquid surface and heated by the vortex heating plate 33 located under the first collection cover 27. During the inflation process of the present invention, it is necessary to ensure that there is enough gas in the middle region, that is, the gas in the middle region has sufficient pressure to ensure the stability of the solvent liquid surface under the first collection cover 27 and prevent the occurrence of pulsation easily. In addition, the gas in the middle region will form a turbulent flow phenomenon during the flow, which will disturb the solvent under the first collection cover 27 and increase the uniformity of solvent heating.

[0056] In the present invention, the distance between the upper end of the vortex heating plate 33 and the lower end of the first collection cover 27 is 2-3 cm. Such a design can increase the efficiency of the steam being driven away by the gas flowing in the first collection cover 27.

[0057] As Figure 3 shown, a first rotating shaft 10 is rotatably installed in the blanking port 17 at the lower end of the outer cylinder 1 through a first support structure. A first gear 11 is fixedly installed at the lower end of the first rotating shaft 10. A second motor 4 is fixedly installed on the outer wall surface at the lower end of the outer cylinder 1. The output shaft of the second motor 4 penetrates into the blanking port 17 and is fixedly installed with a second gear 12. The second gear 12 meshes with the first gear 11. As Figure 8 、 14 shown, a connecting structure 32 is fixedly installed at the upper end of the first rotating shaft 10. The upper end of the connecting structure 32 is fixedly connected to the installation inner ring 23 in the lower collection assembly 7. The fixed ring 29 in the lower collection assembly 7 is rotatably installed on the inner cylinder 13. And the fixed ring 29 and the installation inner ring 23 in the lower collection assembly 7 are fixedly connected through a plurality of connecting members 37 evenly distributed circumferentially. The fixed ring 29 in the lower collection assembly 7 and the installation inner ring 23 in the upper collection assembly 7 are fixedly connected through a plurality of transmission connecting rods 22 evenly distributed circumferentially. The fixed ring 29 in the upper collection assembly 7 is fixedly installed on the inner cylinder 13.

[0058] When the second motor 4 operates, it can drive the second gear 12 to rotate. The rotation of the second gear 12 drives the first gear 11 to rotate. The rotation of the first gear 11 drives the first rotating shaft 10 to rotate. The rotation of the first rotating shaft 10 drives the connecting structure 32 at the upper end to rotate. The connecting structure 32 drives the installation inner ring 23 in the first collection assembly 7 located on the lower side to rotate. The rotation of the installation inner ring 23 drives the fixed ring 29 in the first collection assembly 7 located on the lower side to rotate through the connecting member 37. The rotation of the fixed ring 29 drives the installation inner ring 23 located on the upper side to rotate through the transmission connecting rod 22.

[0059] As Figure 15 , 16 shown, the second collection assembly 8 includes a second collection cover 38, a heating wire 39, an annular mounting plate 40, a second intake pipe 41, a second exhaust pipe 42, a second connecting pipe 43, a third connecting pipe 44, and a drainage plate 45. As Figure 17 , 18 shown, the inner and outer ends of the annular mounting plate 40, whose cross-section is formed by connecting multiple inverted V-shaped shapes in a ring, are respectively fixedly installed on the inner cylinder 13 and the outer cylinder 1; the pointed corner area at the upper end of the annular mounting plate 40 has openings evenly distributed circumferentially. Multiple layers of heating wires 39 and second collection covers 38 are evenly installed in the V-shaped grooves of the annular mounting plate 40 from top to bottom. Each layer of the second collection covers 38 is evenly distributed circumferentially in the V-shaped grooves of the annular mounting plate 40. As Figure 19 shown, the second collection cover 38 is bowl-shaped, and an eccentrically-mounted drainage plate 45 is fixedly installed on the inner side of the second collection cover 38; a second connecting pipe 43 is fixedly installed on the upper side of the second collection cover 38, and a third connecting pipe 44 is fixedly installed at a position near the lower part on the outer wall surface of the second collection cover 38 on the side where the drainage plate 45 is installed. As Figure 16 shown, a second intake pipe 41 is fixedly installed on the upper side of the second connecting pipes 43 installed on all the second collection covers 38 in the same layer, and a second outlet pipe is fixedly installed on the upper side of the third connecting pipes 44 installed on all the second collection covers 38 in the same layer.

[0060] The annular mounting plate 40 designed in the present invention has a certain height. The higher the annular mounting plate 40, the more the number of second collection covers 38 and heating wires 39 that can be installed on it, and the higher the evaporation and concentration efficiency.

[0061] In the present invention, since the second collection cover 38 is relatively small, the solvent below the second collection cover 38 is prone to pulsation and enters the second collection cover 38; when inflating the second intake pipe 41, the gas enters the second collection cover 38 through the corresponding second connecting pipe 43 and blows directly downward on the liquid surface below the second collection cover 38, impacting the liquid surface below the second collection cover 38; the pulsation of the liquid surface below the second collection cover 38 is reduced through the impact; the gas entering the second collection cover 38 will flow from the side through the third connecting pipe 44 into the second exhaust pipe 42 and be discharged under the guiding action of the guiding plate 45; the gas in the flow will carry away the steam remaining on the solvent liquid surface evaporated by the heating wire 39 located below the second collection cover 38. The function of the guiding plate 45 designed in the present invention is to increase the acting force and acting time of the directly blown gas on the liquid surface.

[0062] In the collection assembly one 7 and the collection assembly two 8 designed in the present invention, the first collection cover 27 and the second collection cover 38 with different sizes are respectively adopted, and their shapes are both bowl-shaped; however, due to their different sizes, the structures arranged inside are also different. For the larger first collection cover 27, its internal space is larger, and the flowing solvent is not easily introduced into its interior, and the blown gas can be directly discharged from the upper side; while for the relatively smaller second collection cover 38, its internal space is relatively small, and the flowing solvent is easily introduced into its interior, affecting the collection of steam. Therefore, in the present invention, a guiding plate 45 is specifically arranged inside the second collection cover 38, and the blown gas directly impacts the liquid surface, and the pulsation of the liquid surface below the second collection cover 38 is reduced through the impact; that is, two different gas flow paths are designed according to the different sizes of the collection covers.

[0063] In the present invention, three layers of collection assemblies are arranged between the outer cylinder 1 and the inner cylinder 13, and two different gas flow paths are designed in the collection covers in the collection assemblies. Through this series of designs, it is ensured that the device has a high evaporation and concentration effect.

[0064] The present invention designs two different collection assemblies. The collection assembly one 7 is applicable to solvents with low concentration, and the collection assembly two 8 is applicable to solvents with high concentration; however, since the collection assembly two 8 is relatively complex and the cost is relatively high, while the collection assembly one 7 has a relatively simple structure and a relatively low cost; therefore, in the present invention, two collection assemblies one 7 and one collection assembly two 8 are arranged from bottom to top between the outer cylinder 1 and the inner cylinder 13. The solvent is preliminarily concentrated through the two collection assemblies one 7, and the solvent after preliminary concentration is then re-concentrated through the collection assembly two 8; while ensuring the concentration effect, the equipment cost is reduced to a certain extent.

[0065] In the present invention, the cross-section of the inner cylinder 13 is smaller than the cross-section between the inner cylinder 13 and the outer cylinder 1. Although the pump impeller 6 is driven to rotate at a high speed, the solvent still flows upward at a relatively slow speed when entering the space between the inner cylinder 13 and the outer cylinder 1, which can ensure that the spiral heating plate 33 and the heating wire 39 can fully heat the solvent.

[0066] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

[0067] Embodiment: When using the device designed by the present invention, during use, the original solvent is slowly added into the outer cylinder 1 through the addition port. When the solvent passes through the first collection cover 27 and the second collection cover 38 during the addition process, a liquid level will be formed on the lower sides of the first collection cover 27 and the second collection cover 38.

[0068] When starting evaporation and concentration, control the first motor 2 and the second motor 4 to operate. When the first motor 2 operates, it can drive the second rotating shaft 18 to rotate. The rotation of the second rotating shaft 18 drives the third gear 19 to rotate. The rotation of the third gear 19 drives the fourth gear 20 to rotate. The rotation of the fourth gear 20 drives the pump impeller 6 to rotate. The rotating pump impeller 6 provides the flow power for the original solvent added into the outer cylinder 1, so that the original solvent in the outer cylinder 1 circulates inside and outside the inner cylinder 13. When the second motor 4 operates, it can drive the second gear 12 to rotate. The rotation of the second gear 12 drives the first gear 11 to rotate. The rotation of the first gear 11 drives the first rotating shaft 10 to rotate. The rotation of the first rotating shaft 10 drives the connecting structure 32 at the upper end to rotate. The connecting structure 32 drives the installation inner ring 23 in the first collection assembly 7 located on the lower side to rotate. The rotation of this installation inner ring 23 drives the fixed ring 29 in the first collection assembly 7 located on the lower side to rotate through the connecting member 37. The rotation of this fixed ring 29 drives the installation inner ring 23 located on the upper side to rotate through the transmission connecting rod 22. When the installation inner ring 23 rotates, it can drive the installation outer ring 25 to rotate together through the connecting plate 24, that is, when the spiral heating plate 33 is driven to rotate, the inner end and the outer end can rotate simultaneously; the rotating spiral heating plate 33 stirs the solvent passing through it, and improves the evaporation and concentration efficiency of the solvent through stirring; at the same time, it can also ensure the uniformity of solvent heating.

[0069] Inflate the first intake pipe 30 and the second intake pipe 41 simultaneously. The gas inflated into the first intake pipe 30 enters the inner area of the first collection cover 27 through the corresponding first connecting pipe 35, then passes through the middle area and the outer area in sequence, and finally enters the first outlet pipe 28 through the corresponding first connecting pipe 35 and is finally discharged; the steam remaining on the solvent liquid surface evaporated by the spiral heating plate 33 located under the first collection cover 27 will be carried away by the gas during its flow. The gas entering the second intake pipe 41 will enter the second collection cover 38 through the corresponding second connecting pipe 43 and directly blow the liquid surface under the second collection cover 38 vertically downward to impact the liquid surface under the second collection cover 38; the pulsation of the liquid surface under the second collection cover 38 is reduced through the impact; then the gas will be discharged through the third connecting pipe 44 from the side and enter the second exhaust pipe 42 under the guiding action of the diversion plate 45; the steam remaining on the solvent liquid surface evaporated by the heating wire 39 located under the second collection cover 38 will be carried away by the gas during its flow.

Claims

1. An epoxy resin concentration device, characterized in that: It includes an outer cylinder, a support frame, a first motor, a pump impeller, a first collection component, a second collection component, and an inner cylinder. The outer cylinder is installed on the upper side of the support frame, and the inner cylinder, which is connected up and down, is fixedly installed inside the outer cylinder; the pump impeller is rotatably installed inside the inner cylinder, and the first motor capable of driving the pump impeller to rotate is fixedly installed on the outer wall of the outer cylinder; two first collection components and one second collection component are sequentially installed between the inner cylinder and the outer cylinder from top to bottom; The first collection component includes a first collection cover and a spiral heating plate. The spiral heating plate is installed between the inner cylinder and the outer cylinder, and the first collection cover is installed between the inner cylinder and the outer cylinder and is located above the spiral heating plate; two annular partitions are installed inside the first collection cover, and the internal space of the first collection cover is divided into inner, middle, and outer three regions by the two annular partitions. The bottom surface of the annular partition is higher than the bottom surface of the first collection cover; the upper end of the inner region has an air inlet, and the upper end of the outer region has an exhaust port; The second collection component includes a second collection cover, heating wires, and an annular mounting plate. The annular mounting plate is fixedly installed between the inner cylinder and the outer cylinder, and multiple layers of heating wires are evenly arranged on the annular mounting plate from top to bottom; a plurality of second collection covers are fixedly installed on the annular mounting plate circumferentially and evenly and are arranged layer by layer; a diversion plate is fixedly and eccentrically installed inside the second collection cover, the upper end of the second collection cover has an air inlet, and the side wall surface of the second collection cover where the diversion plate is installed has an exhaust port; The spiral heating plates in the upper and lower two first collection components are rotatably installed between the inner cylinder and the outer cylinder; a second motor is fixedly installed on the outer wall of the outer cylinder, and the second motor can drive the two spiral heating plates in the upper and lower two first collection components to rotate.

2. An epoxy resin concentration device according to claim 1, characterized in that: A circular feeding port is opened at the top of the outer cylinder, a top cover is installed on the circular feeding port, a discharging port is provided at the bottom of the outer cylinder, and a switching valve is installed on the discharging port; the inner cylinder is fixedly installed inside the outer cylinder through a second support structure.

3. An epoxy resin concentration device according to claim 1, characterized in that: The pump impeller is rotatably installed inside the inner cylinder through two third support structures distributed up and down. The upper end of the pump impeller rotating shaft is fixedly installed with a fourth gear. The second rotating shaft is rotatably installed on the outer cylinder, and one end of the second rotating shaft penetrates into the inner cylinder and is fixedly installed with a third gear. The third gear meshes with the fourth gear; the first motor is fixedly installed on the outside of the outer cylinder, and the output shaft of the first motor is fixedly connected with the second rotating shaft.

4. An epoxy resin concentration device according to claim 1, characterized in that: Two groups of guide rings are fixedly installed up and down on the inner wall surface of the outer cylinder and the outer wall surface of the inner cylinder; the installation inner ring is rotatably installed outside the inner cylinder through the guide ring on the inner cylinder, and the installation outer ring is rotatably installed on the inner wall of the outer cylinder through the guide ring on the outer cylinder; the spiral heating plate is installed between the installation inner ring and the installation outer ring, and the inner end of the spiral heating plate is fixedly connected with the installation inner ring, and the outer end of the spiral heating plate is fixedly connected with the installation outer ring.

5. An epoxy resin concentration device according to claim 4, characterized in that: The installation inner ring and the installation outer ring are fixedly connected through a plurality of connecting plates evenly distributed circumferentially.

6. The epoxy resin concentration device according to claim 1, wherein: An annular inner partition is fixedly installed outside the inner cylinder, and an annular outer partition is fixedly installed on the inner wall of the outer cylinder. The annular inner partition and the annular outer partition are both located above the spiral heating plate and below the first collection cover.

7. An epoxy resin concentration device according to claim 1, characterized in that: The first collection cover is of an annular structure, and the unilateral cross-section of the first collection cover is bowl-shaped; at the upper end of the first collection cover, an inner and outer distributed first intake pipe and a first exhaust pipe are installed through support pieces, and a plurality of first connecting air pipes are fixedly installed circumferentially and evenly between the first intake pipe, the first exhaust pipe and the first collection cover respectively; the lower end of the first connecting air pipe connected between the first intake pipe and the first collection cover communicates with the inner space among the three spaces in the first collection cover separated by two annular partitions; the lower end of the first connecting air pipe connected between the first exhaust pipe and the first collection cover communicates with the outer space among the three spaces in the first collection cover separated by two annular partitions; the middle of the first collection cover is installed on the inner cylinder, and the outer side of the first collection cover is fixedly installed on the inner wall surface of the outer cylinder.

8. An epoxy resin concentration device according to claim 1, characterized in that: The fixing ring is installed on the outer side of the inner cylinder; an installation ring is fixedly installed in the middle of the first collection cover; the middle of the first collection cover is rotatably installed on the fixing ring through the installation ring; a first rotating shaft is rotatably installed in the material discharge port at the lower end of the outer cylinder through a first support structure, and a first gear is fixedly installed at the lower end of the first rotating shaft; a second motor is fixedly installed on the outer wall surface at the lower end of the outer cylinder, and the output shaft of the second motor penetrates into the material discharge port and is fixedly installed with a second gear, and the second gear meshes with the first gear; a connecting structure is fixedly installed at the upper end of the first rotating shaft, and the upper end of the connecting structure is fixedly connected with the installation inner ring in the lower collection assembly one; the fixing ring in the lower collection assembly one is rotatably installed on the inner cylinder, and the fixing ring and the installation inner ring in the lower collection assembly one are fixedly connected through a plurality of circumferentially and evenly distributed connecting pieces; the fixing ring in the lower collection assembly one and the installation inner ring in the upper collection assembly one are fixedly connected through a plurality of circumferentially and evenly distributed transmission connecting rods; the fixing ring in the upper collection assembly one is fixedly installed on the inner cylinder.

9. An epoxy resin concentration device according to claim 1, characterized in that: The cross-section of the annular installation plate is formed by connecting a plurality of inverted V-shapes; each layer of the second collection covers is circumferentially and evenly distributed in the V-shaped grooves of the annular installation plate; the second collection cover is bowl-shaped, a second connecting air pipe is fixedly installed on the upper side of the second collection cover, and a third connecting air pipe is fixedly installed at a position close to the lower side on the outer wall surface of the second collection cover where the drainage plate is installed; a second intake pipe is fixedly installed on the upper side of all the second connecting air pipes installed on all the second collection covers in the same layer, and a second exhaust pipe is fixedly installed on the upper side of all the third connecting air pipes installed on all the second collection covers in the same layer.

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