Reaction evaporation apparatus

Abstract

The application provides a reaction evaporation device, which comprises a base, an outer cylinder body, a containing cavity penetrating through the outer cylinder body, a first fixed part, a rotating part and a second fixed part, a vacuum connection port being arranged on the outer cylinder body, the first fixed part being connected with the base, a heating jacket, the outer cylinder body being sleeved with the heating jacket, a cover being connected with the second fixed part, a first driving assembly penetrating through the cover, a distributor being arranged in the containing cavity, the first driving assembly driving the distributor to rotate, a distribution cavity being arranged in the distributor, distribution holes being arranged in the circumference of the distribution cavity, and a feeding hole being further arranged in the distribution cavity, a first feeding pipe, the first feeding pipe being used for conveying a first material to the feeding hole, an inner cylinder body being arranged in the containing cavity, the first driving assembly driving the inner cylinder body to rotate, a containing cavity being arranged in the inner cylinder body, dispersion holes being arranged in the circumference of the containing cavity, and a feeding port being further arranged in the containing cavity, a second feeding pipe, the second feeding pipe being used for conveying a second material to the feeding port, a plugging piece being connected with the first fixed part, a discharging pipe being communicated with the plugging piece, and a second driving assembly penetrating through the plugging piece, the second driving assembly being fixedly connected with the inner wall of the rotating part and driving the rotating part to rotate.

Description

Technical Field

[0001] This invention relates to the field of heat exchange evaporation equipment technology, and more specifically to a reaction evaporation device. Background Technology

[0002] Evaporators are commonly used equipment for material separation and purification. Currently, most technologies utilize thin-film evaporators, where mixed materials are injected into the evaporator's cylinder. An external heat medium heats the inside of the cylinder, while a rotating scraper forces the liquid material to form a film on the cylinder wall, evaporating it as a liquid film. This method is widely used in petroleum, chemical, food, and pharmaceutical industries. However, when two materials requiring a reaction are simultaneously injected into a thin-film evaporator for reaction and evaporation, the evaporation process is not always complete due to the rotating scraper forming a liquid film. Furthermore, evaporation in liquid film form under the influence of the heat medium requires improvement in evaporation efficiency. Additionally, as evaporation progresses, more material precipitates between the scraper and the inner wall of the cylinder, potentially clogging the scraper and cylinder, thus affecting the normal operation of the equipment. Summary of the Invention

[0003] In view of this, the present invention provides a reaction evaporation device, in which the outer cylinder and the inner cylinder rotate in opposite directions, causing the first material sprayed onto the inner wall of the outer cylinder by the distributor and the second material sprayed onto the inner wall of the outer cylinder by the inner cylinder to collide and mix in the form of droplets. This increases the surface area of ​​the material for evaporation, thereby improving the evaporation efficiency. At the same time, the collision and mixing between the reactants increases the turbulence and mixing degree of the reaction, making the reaction between the materials more complete. In addition, the droplets sprayed by the rotating inner cylinder have a certain kinetic energy, which can wash away and dilute the solute that precipitates onto the inner wall of the outer cylinder or into the circumferential dispersion holes of the inner cylinder, thereby preventing blockage and overcoming the defects of the prior art.

[0004] The reaction evaporation apparatus provided by the present invention includes: a base; an outer cylinder having a through-hole, comprising a first fixing part, a rotating part, and a second fixing part arranged sequentially, the outer cylinder having a vacuum connection port, and the outer wall of the first fixing part being fixedly connected to the base; a heating jacket fitted over the outer cylinder, having a heat medium inlet and a heat medium outlet; a cover fixedly connected to the second fixing part and covering the through-hole; a first driving assembly passing through the cover and rotatably connected to the cover; and a feeder disposed within the through-hole, the first driving assembly passing through the feeder and driving the feeder to rotate, the feeder having a feed chamber and a circumferentially through-hole, and the feeder also having a connection for the feeder. The cavity includes: a feed port; a first feed pipe, which passes through the second fixing part and conveys the first material to the feed port; an inner cylinder, which is disposed within the receiving cavity, with a first driving assembly passing through the inner cylinder and driving the inner cylinder to rotate; a receiving cavity provided within the inner cylinder, with a dispersion hole extending circumferentially through it; and a feed inlet communicating with the receiving cavity; a second feed pipe, which passes through the second fixing part and conveys the second material to the feed inlet; a sealing member, which is connected to the first fixing part and covers the receiving cavity, with a discharge pipe communicating with the sealing member; and a second driving assembly, which passes through the sealing member, is rotatably connected to the sealing member, and is fixedly connected to the inner wall of the rotating part, driving the rotating part to rotate.

[0005] Optionally, the reaction evaporation apparatus further includes: a first dispersion plate, which is connected to the first driving component within the accommodating cavity and rotates under the drive of the first driving component, and a first leakage hole is provided through the first dispersion plate.

[0006] Optionally, a plurality of first guide plates are connected to the first dispersion plate.

[0007] Optionally, the reaction evaporation apparatus further includes a hollow telescopic rod, which includes a fixed part and a movable part connected together. The fixed part passes through the inner cylinder and is connected to the inner cylinder.

[0008] Optionally, the reaction evaporation device further includes: a second dispersion plate, which is connected to the first driving component in the fabric cavity and rotates under the drive of the first driving component, and a second leakage hole is provided through the second dispersion plate.

[0009] Optionally, a plurality of second guide plates are connected to the second dispersion plate.

[0010] Optionally, the first driving assembly includes: a first driving member, the output shaft of which passes through the cover and is rotatably connected to the cover; and a rotating shaft, which is fixedly connected to the output shaft of the first driving member, passing through the fabric feeder and the inner cylinder in sequence, and is fixedly connected to the fabric feeder and the inner cylinder.

[0011] Optionally, the second drive assembly includes: a second drive member, the output shaft of which passes through the sealing member and is rotatably connected to the sealing member; and a plurality of connecting arms, the opposite ends of which are respectively fixedly connected to the output shaft of the second drive member and the inner wall of the rotating part.

[0012] Optionally, the reaction evaporation apparatus further includes: a first dam, the first dam being connected to the outer wall of the inner cylinder, the feed inlet being disposed within the first dam, and the second feed pipe extending to the first dam.

[0013] Optionally, the reaction evaporation apparatus further includes: a second dam, the second dam being connected to the outer wall of the distributor, the feed hole being disposed inside the second dam, and the first feed pipe extending to the second dam.

[0014] The technical solutions provided by this invention have at least the following beneficial effects compared with the prior art:

[0015] The reaction evaporation device of this invention utilizes the counter-rotation of the outer and inner cylinders. This causes the first material sprayed onto the inner wall of the outer cylinder by the distributor to collide and mix with the second material sprayed onto the inner wall of the outer cylinder by the inner cylinder in the form of droplets. This increases the surface area for evaporation of the materials, thereby improving evaporation efficiency. At the same time, the collision and mixing between the reactants increases the turbulence and mixing degree of the reaction, making the reaction between the materials more complete. In addition, the droplets sprayed from the rotating inner cylinder have a certain kinetic energy, which can wash away and dilute the solute that precipitates onto the inner wall of the outer cylinder or into the circumferential dispersion holes of the inner cylinder, thereby preventing blockage. Attached Figure Description

[0016] Figure 1 This is a perspective view of a reaction evaporation apparatus according to an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A schematic diagram of the feeder of the reaction evaporation device shown;

[0018] Figure 3 for Figure 1 A schematic diagram of the inner cylinder of the reaction evaporation apparatus shown;

[0019] Figure 4 for Figure 1A schematic diagram of the first dispersion plate of the reaction evaporation apparatus shown;

[0020] Figure 5 for Figure 1 A schematic diagram of the second drive component of the reaction evaporation apparatus shown.

[0021] Figure label:

[0022] 1: Base; 2: Outer cylinder; 3: Heating jacket; 31: Heat medium inlet; 32: Heat medium outlet; 4: Cover; 5: First drive assembly; 51: First drive component; 52: Rotating shaft; 6: Material distributor; 61: Material distribution hole; 62: Feed hole; 7: First feed pipe; 8: Inner cylinder; 81: Dispersion hole; 82: Feed inlet; 9: Second feed pipe; 10: Sealing component; 11: Second drive assembly; 111: Second drive component; 112: Connecting arm; 12: Receiving cavity; 13: Vacuum connection port; 14: Discharge pipe; 15: First dispersion plate; 16: First leakage hole; 17: First guide plate; 18: Hollow telescopic rod; 19: First cofferdam; 20: Second cofferdam. Detailed Implementation

[0023] The embodiments of the present invention will be further described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of the present invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0024] Figure 1 This is a perspective view of a reaction evaporation apparatus according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the feeder of the reaction evaporation device shown; Figure 3 for Figure 1 A schematic diagram of the inner cylinder of the reaction evaporation apparatus shown.

[0025] like Figures 1-3 As shown, the reaction evaporation device includes a base 1, an outer cylinder 2, a heating jacket 3, a cover 4, a first drive assembly 5, a feeder 6, a first feed pipe 7, an inner cylinder 8, a second feed pipe 9, a sealing component 10, and a second drive assembly 11.

[0026] The outer cylinder 2 has a through-hole 12, including a first fixing part, a rotating part, and a second fixing part arranged sequentially. A vacuum connection port 13 is provided on the outer cylinder 2. The outer wall of the first fixing part is fixedly connected to the base 1. The heating jacket 3 is fitted onto the outer cylinder 2 and has a heat medium inlet 31 and a heat medium outlet 32. The cover 4 is fixedly connected to the second fixing part and covers the through-hole 12. The first driving assembly 5 passes through the cover 4 and is rotatably connected to it. The fabric feeder 6 is disposed within the through-hole 12. The first driving assembly 5 passes through the fabric feeder 6 and drives it to rotate. The fabric feeder 6 has a fabric cavity and a circumferentially through-hole 61. The fabric feeder 6 also has a feed hole 62 communicating with the fabric cavity. The first feed pipe 7 passes through the second fixing part and conveys the first material to the feed hole 62; the inner cylinder 8 is disposed in the receiving cavity 12, the first driving component 5 passes through the inner cylinder 8 and drives the inner cylinder 8 to rotate, the inner cylinder 8 is provided with a receiving cavity, and a dispersion hole 81 is opened circumferentially through it, and the inner cylinder 8 is also provided with a feed port 82 communicating with the receiving cavity; the second feed pipe 9 passes through the second fixing part and conveys the second material to the feed port 82; the sealing member 10 is connected to the first fixing part and blocks the receiving cavity 12, and a discharge pipe 14 is connected to the sealing member 10; the second driving component 11 passes through the sealing member 10, is rotatably connected to the sealing member 10, and is fixedly connected to the inner wall of the rotating part, driving the rotating part to rotate.

[0027] In use, heat medium is injected into the heating jacket 3 through the heat medium inlet 31. After cooling, the heat medium is discharged through the heat medium outlet 32. After the temperature inside the heating jacket 3 stabilizes, the air inside the outer cylinder 2 is extracted to a set pressure through the vacuum connection port 13 using a vacuum pump. The first drive assembly 5 and the second drive assembly 11 are then activated. The first drive assembly 5 drives the fabric distributor 6 and the inner cylinder 8 to rotate synchronously, while the second drive assembly 11 drives the rotating part of the outer cylinder 2 to rotate in the opposite direction. The first material is injected through the first feed pipe 7. The first material enters the fabric chamber through the feed hole 62 on the surface of the fabric distributor 6. Under the rotation of the fabric distributor 6, the first material in the fabric chamber is sprayed out as droplets from the fabric holes 61 around the fabric distributor 6 and sprayed onto the inner wall of the outer cylinder 2. It then rotates synchronously with the rotating part on the inner wall of the rotating part. The second material is injected through the second feed pipe 9 and enters the accommodating cavity through the feed port 82 on the surface of the inner cylinder 8. Under the rotation of the inner cylinder 8, the second material in the accommodating cavity is sprayed out as droplets through the dispersion holes 81 around the inner cylinder 8 and sprayed onto the inner wall of the rotating part. The inner cylinder 8 and the rotating part of the outer cylinder 2 rotate in opposite directions. The droplets of the second material sprayed out by the inner cylinder 8 collide and mix with the droplets of the first material that rotate synchronously with the outer cylinder 2, and a reaction occurs between the two materials. At the same time, under the heating action of the heat medium in the heating jacket 3, the newly generated material after the reaction evaporates and concentrates, and a portion of the material falls onto the sealing member 14 at the bottom of the outer cylinder 2. After the reaction and evaporation are completed, the first drive assembly 5 and the second drive assembly 11 are closed, and the discharge pipe 14 is opened to discharge the newly generated material through the discharge pipe 14. Because the inner cylinder 8 is in a continuous rotating state, the second material inside it also has a certain initial kinetic energy when it is sprayed out of the dispersion hole 81. During the reaction evaporation process, if too much solute precipitates into the inner wall of the outer cylinder 2 or the dispersion hole 81 around the inner cylinder 8, the droplets with initial kinetic energy can wash away and dilute the solute precipitated into the inner wall of the outer cylinder 2 or the dispersion hole 81 during the spraying process, thereby preventing blockage.

[0028] The reaction evaporation device of this invention utilizes the counter-rotation of the outer cylinder 2 and the inner cylinder 8 to cause the first material sprayed onto the inner wall of the outer cylinder 2 by the distributor 6 and the second material sprayed onto the inner wall of the outer cylinder 2 by the inner cylinder 8 to collide and mix in the form of droplets. This increases the surface area of ​​the material for evaporation, thereby improving the evaporation efficiency. At the same time, the collision and mixing between the reactants increases the turbulence and mixing degree of the reaction, making the reaction between the materials more complete. In addition, the droplets sprayed from the rotating inner cylinder 8 have a certain kinetic energy, which can wash away and dilute the solute that has precipitated onto the inner wall of the outer cylinder 2 or into the dispersion holes 81 around the inner cylinder 8, thereby preventing blockage.

[0029] In this embodiment, as Figure 1 As shown, the outer cylinder 2 is configured as a hollow ring, with the lower part corresponding to the first fixing part, the middle part corresponding to the rotating part, and the upper part corresponding to the second fixing part. The center is the through-hole accommodating cavity 12. The first fixing part is fixedly connected to the base 1 and to the sealing member 10 covering the accommodating cavity 12. The bottom of the sealing member 10 is arc-shaped to retain falling material. The second driving assembly 11... Figure 1 The bottom part penetrates the sealing member 11, extends into the receiving cavity 12, and is fixedly connected to the rotating part of the outer cylinder 2 to drive the rotating part to rotate. The second fixing part is connected to the cover 4 covering the receiving cavity 12. The first driving assembly 4 is in Figure 1 The top of the middle part penetrates the cap 4 and extends into the receiving cavity 12. During operation, the first fixing part is supported by the base 1, and the rotating part is supported and driven to rotate by the second driving assembly 11. The first driving assembly 5 is supported by other lifting devices, thereby providing support for the cap 4 and the second fixing part, which are directly or indirectly connected to the first driving assembly 5. This allows the first fixing part, the rotating part, and the second fixing part to form a complete outer cylinder 2, and ensures that the internal reaction proceeds normally. The heating jacket 3 is fitted over the outer cylinder 2. In this embodiment, the heat medium injected into the heating jacket 3 is hot oil, but hot steam can also be injected. Figure 1 , Figure 2As shown, the material distributor 6 is a hollow cylinder. The first drive assembly 5 passes through the center of the material distributor 6 and is fixedly connected to it. The upper surface of the material distributor 6 has multiple feed holes 62, and multiple circular material distribution holes 61 are evenly distributed circumferentially. The diameter of the material distribution holes 61 is set to 0.1-10 mm. The first feed pipe 7, which passes through the outer cylinder 2, conveys the first material to the feed holes 62. The material distributor 6 is clearance-fitted with the inner wall of the outer cylinder 2, so that the first material sprayed from the material distribution holes 61 can be sprayed onto the inner wall of the outer cylinder 2 and rotate synchronously with the rotating part. Figure 1 and Figure 3 As shown, the inner cylinder 8 is a hollow cylinder. The first driving component 5 penetrates the center of the upper surface of the inner cylinder 8 and is fixedly connected to the inner cylinder 8, extending into the accommodating cavity of the inner cylinder 8. The upper surface of the inner cylinder 8 is provided with a plurality of feed ports 82, and a plurality of circular dispersion holes 81 are uniformly provided circumferentially. The diameter of the dispersion holes 81 is set to 0.1-10mm. The second feed pipe 9, which penetrates the outer cylinder 2, conveys the second material to the dispersion holes 81. The distance between the inner cylinder 8 and the outer cylinder 2 is set to 0.5-2cm. The second material sprayed from the dispersion holes 81 can rotate and be sprayed onto the inner wall of the outer cylinder 2, and collide with and react with the first material rotating in the opposite direction. Because the material sprayed by the inner cylinder 8 and the distributor 6 is sprayed out in the form of droplets or liquid filaments, the specific surface area participating in evaporation is larger than that of the liquid film in the thin film evaporator, thus improving the evaporation efficiency. In addition, the counter-rotating collision and mixing of the two materials increases the turbulence and mixing degree of the reaction, making the reaction between the materials more complete. Depending on the actual application, the shape and size of the outer cylinder 2, the material distributor 6, and the inner cylinder 8 can be adjusted. The arrangement density of the material distribution holes 61 on the material distributor 6 and the arrangement density of the dispersion holes 81 on the inner cylinder 8 can be adjusted. The specific connection position of the discharge pipe 14 on the sealing member 10 can be adjusted. The first feed pipe 7 can transport the first material to the feed hole 62 of the material distributor 6 in any way without affecting the rotation of the material distributor 6. The second feed pipe 9 can transport the second material to the feed port 82 of the inner cylinder 8 in any way without affecting the rotation of the inner cylinder 8. The first drive assembly 5 and the second drive assembly 11 can adopt any structural form, as long as they can drive the rotating parts of the material distributor 6, the inner cylinder 8, and the outer cylinder 2 to rotate respectively.

[0030] Figure 4 for Figure 1 A schematic diagram of the first dispersion plate of the reaction evaporation apparatus is shown below. Figure 4As shown, optionally, the reaction evaporation apparatus further includes a first dispersion plate 15, which is connected to the first driving assembly 5 within the accommodating cavity and rotates under the drive of the first driving assembly 5. A first leakage hole 16 is provided through the first dispersion plate 15. With this configuration, the first driving assembly 5 drives the first dispersion plate 15 to rotate simultaneously, thereby agitating the second material within the accommodating cavity and dispersing the second material evenly.

[0031] In this embodiment, as Figure 4 As shown, three circular first dispersion plates 15 are provided, which are fixedly connected to the first driving assembly 5 at intervals. Each first dispersion plate 15 has a through-hole 16 to facilitate the smooth falling of the second material entering the accommodating cavity. The shape, size, and number of the first dispersion plates 15 can be adjusted according to the actual application.

[0032] Optionally, a plurality of first guide plates 17 are connected to the first dispersing plate 15. With this arrangement, the first guide plates 17 rotate simultaneously with the first dispersing plate 15, further agitating the second material in the accommodating cavity and making the second material evenly dispersed.

[0033] In this embodiment, as Figure 4 As shown, each of the first dispersing plates 15 has a plurality of trapezoidal first guide plates 17 evenly arranged circumferentially, and each first guide plate 17 is perpendicularly connected to the first dispersing plate 15 to maximize the agitation of the second material in the accommodating cavity. The shape, size, number, and specific position of the first guide plates 17 on the first dispersing plate 15 can be adjusted according to actual application.

[0034] Optionally, the reaction evaporation device further includes a hollow telescopic rod 18, which includes a fixed part and a movable part. The fixed part penetrates the inner cylinder 8 and is connected to the inner cylinder 8. In this configuration, the hollow telescopic rod 18 rotates at high speed with the inner cylinder 8 under the driving action of the first driving component 5, creating a negative pressure inside the hollow telescopic rod 18. This negative pressure draws the material that has fallen to the bottom of the outer cylinder 2 back into the inner cylinder 8 via the hollow telescopic rod 18, where it is then sprayed back onto the inner wall of the outer cylinder 2 by the rotating inner cylinder 8, further participating in the reaction and evaporation, ensuring that the material can fully react and evaporate.

[0035] In this embodiment, as Figure 1As shown, the upper part of the hollow telescopic rod 18 is a fixed part, and the lower part is a movable part. The fixed part penetrates through the center of the lower surface of the inner cylinder 8 and is fixedly connected to the inner cylinder 8. The movable part can adjust the overlap length with the fixed part, thereby adjusting the total length of the hollow telescopic rod 18. According to the reaction experiments of different materials, the movable part can be manually adjusted up and down. In order to enable the material to enter the receiving cavity quickly, spray holes can be opened circumferentially through the hollow telescopic rod 18 extending into the receiving cavity, so that the material sucked by negative pressure can be sprayed out not only from the opening at the top of the hollow telescopic rod 18, but also from the spray holes opened on the side. The material at the bottom of the outer cylinder 2 is sucked up by the negative pressure principle without the need for additional driving force, and the energy is used efficiently.

[0036] Optionally, the reaction evaporation device further includes a second dispersion plate, which is connected to the first driving assembly 5 within the fabric cavity and rotates under the drive of the first driving assembly 5. A second leakage hole is provided through the second dispersion plate. With this configuration, the first driving assembly 5 drives the second dispersion plate to rotate simultaneously, thereby agitating the first material within the fabric cavity and dispersing the first material evenly.

[0037] In this embodiment, a circular second dispersing plate is provided, with the first driving component 5 passing through its center and fixedly connected thereto. A second leakage hole is provided through the second dispersing plate to facilitate the smooth falling of the first material entering the fabric cavity. The shape, size, and number of the second dispersing plates can be adjusted according to actual application.

[0038] Optionally, a plurality of second guide plates are connected to the second dispersing plate. With this arrangement, the second guide plates rotate simultaneously with the second dispersing plate, further agitating the first material within the accommodating cavity and ensuring uniform dispersion of the first material.

[0039] In this embodiment, multiple trapezoidal second guide plates are evenly arranged circumferentially on the second dispersing plate. The second guide plates are perpendicularly connected to the second dispersing plate to maximize the agitation of the first material in the fabric cavity. The shape, size, number, and specific position of the second guide plates on the second dispersing plate can be adjusted according to actual application.

[0040] Optionally, the first drive assembly 5 includes a first drive member 51 and a rotating shaft 52. The output shaft of the first drive member 51 passes through the cover 4 and is rotatably connected to the cover 4; the rotating shaft 52 is fixedly connected to the output shaft of the first drive member 51, and the rotating shaft 52 passes sequentially through the fabric feeder 6 and the inner cylinder 8, and is fixedly connected to both the fabric feeder 6 and the inner cylinder 8. This configuration simplifies the structural composition of the first drive assembly 5 and facilitates assembly and operation.

[0041] In this embodiment, as Figure 1 As shown, the first driving component 51 is a motor, which is connected to the top of the cover 4. The output shaft of the first driving component 51 passes through the cover 4 and is rotatably connected to the cover 4 by means of a bearing. The rotating shaft 52 is fixedly connected to the output shaft of the first driving component 51 in the receiving cavity and passes through the center of the fabric distributor 6 and the inner cylinder 8. The first dispersing plate 15 and the second dispersing plate are respectively sleeved on the rotating shaft 52 and fixedly connected to the rotating shaft 52.

[0042] Figure 5 for Figure 1 A schematic diagram of the second drive component of the shown reaction evaporation apparatus. (As shown) Figure 5 As shown, optionally, the second drive assembly 11 includes a second drive member 111 and a plurality of connecting arms 112. The output shaft of the second drive member 111 passes through the sealing member 10 and is rotatably connected to the sealing member 10; the opposite ends of the plurality of connecting arms 112 are respectively fixedly connected to the output shaft of the second drive member 111 and the inner wall of the rotating part. This arrangement simplifies the structural composition of the second drive assembly 11 and facilitates assembly and operation.

[0043] In this embodiment, as Figure 1 and Figure 5 As shown, the second driving component 111 is a motor, connected to the bottom of the sealing component 10. The output shaft of the second driving component 111 passes through the sealing component 10 and is rotatably connected to the sealing component 10 via bearings. Three connecting arms 112 are provided, evenly distributed along the circumference of the output shaft of the second driving component 111. The opposite ends of each connecting arm 112 are fixedly connected to the output shaft of the second driving component 111 and the inner wall of the rotating part, respectively. After the second driving component 111 is started, the second driving component 111 drives its output shaft to rotate, which in turn drives each connecting arm 112 fixedly connected to the output shaft to rotate, and finally drives the rotating part fixedly connected to the connecting arm 112 to rotate.

[0044] Optionally, the reaction evaporation apparatus further includes a first weir 19, which is connected to the outer wall of the inner cylinder 8. The feed inlet 82 is located inside the first weir 19, and the second feed pipe 9 extends to the first weir 19. This arrangement facilitates the smooth introduction of the second material into the feed inlet 82 by the second feed pipe 9, preventing overflow.

[0045] In this embodiment, as Figure 3 As shown, the first cofferdam 19 surrounds the rotating shaft 52 of the first drive assembly 5 and maintains a certain distance from the rotating shaft 52. Within the range between the first cofferdam 19 and the rotating shaft 52, the top surface of the inner cylinder 8 is provided with a plurality of feed inlets 82 circumferentially surrounding the rotating shaft 52. The second feed pipe 9 extends above the first cofferdam 19. The second material introduced through the second feed pipe 9 falls into the area between the first cofferdam 19 and the rotating shaft 52, and then enters the interior of the inner cylinder 8 through the feed inlets 82 within this area. The shape and size of the first cofferdam 19 can be adjusted according to the actual application.

[0046] Optionally, the reaction evaporation apparatus further includes a second weir 20, which is connected to the outer wall of the distributor 6. The feed hole 62 is disposed within the second weir 20, and the first feed pipe 7 extends to the second weir 20. This arrangement facilitates the smooth introduction of the first material into the feed hole 62 by the first feed pipe 7, preventing overflow.

[0047] In this embodiment, as Figure 2 As shown, the second cofferdam 20 surrounds the rotating shaft 52 of the first drive assembly 5 and maintains a certain distance from the rotating shaft 52. Within the range between the second cofferdam 20 and the rotating shaft 52, the top surface of the material distributor 6 has a plurality of feed holes 62 circumferentially surrounding the rotating shaft 52. The first feed pipe 7 extends above the second cofferdam 20. The first material introduced through the first feed pipe 7 falls into the area between the second cofferdam 20 and the rotating shaft 52, and then enters the interior of the material distributor 6 through the feed holes 62 within this area. The shape and size of the second cofferdam 20 can be adjusted according to the actual application.

[0048] The following is a further description of the operation process of the aforementioned reaction evaporation apparatus:

[0049] In use, heat medium is injected into the heating jacket 3 through the heat medium inlet 31, and the cooled heat medium is discharged through the heat medium outlet 32. After the temperature inside the heating jacket 3 stabilizes, a vacuum pump is used to extract air from the outer cylinder 2 to a set pressure through the vacuum connection port 13. The first drive component 51 and the second drive component 111 are then activated. The output shaft of the first drive component 51 rotates, driving the rotating shaft 52 to rotate, which in turn drives the fabric distributor 6 and the inner cylinder 8 connected to the rotating shaft 52 to rotate synchronously. The output shaft of the second driving component 111 rotates, causing the multiple connecting arms 112 connected to the output shaft to rotate, which in turn causes the rotating part of the outer cylinder 2 to rotate in the opposite direction. First material is injected into the second weir 20 through the first feed pipe 7. The first material enters the fabric chamber through the feed holes 62 within the range of the second weir 20. Under the rotation of the fabric distributor 6, the first material in the fabric chamber is sprayed out as droplets from the fabric holes 61 circumferentially oriented by the fabric distributor 6 and sprayed onto the inner wall of the outer cylinder 2, and then... The material rotates synchronously with the rotating part on the inner wall of the rotating part. The second material is injected through the second feed pipe 9. The second material enters the receiving cavity through the feed inlet 82 within the range of the first weir 19. Under the rotation of the inner cylinder 8, the second material in the receiving cavity is sprayed out as droplets from the dispersion holes 81 circumferentially around the inner cylinder 8 and onto the inner wall of the rotating part. Since the inner cylinder 8 rotates in the opposite direction to the rotating part of the outer cylinder 2, the droplets of the second material sprayed from the inner cylinder 8 and the material flowing with the outer cylinder... 2. The droplets of the first material, rotating synchronously, collide and mix in opposite directions, undergoing a reaction between the two materials. Simultaneously, under the heating effect of the heat medium inside the heating jacket 3, the newly generated material evaporates and concentrates, and a portion of the material falls onto the sealing member 14 at the bottom of the outer cylinder 2. The hollow telescopic rod 18 rotates synchronously with the inner cylinder 8, creating a negative pressure inside during rotation. Under this negative pressure, the material that has fallen to the bottom is drawn back into the inner cylinder 8 and sprayed again onto the inner wall of the outer cylinder 2 to participate in the reaction and evaporation again. After the reaction and evaporation are completed, the first driving member 51 and the second driving member 111 are turned off, and the discharge pipe 14 is opened to discharge the newly generated material.

[0050] The reaction evaporation device of this invention utilizes the counter-rotation of the outer cylinder 2 and the inner cylinder 8 to cause the first material sprayed onto the inner wall of the outer cylinder 2 by the distributor 6 and the second material sprayed onto the inner wall of the outer cylinder 2 by the inner cylinder 8 to collide and mix in the form of droplets. This increases the surface area of ​​the material for evaporation, thereby improving the evaporation efficiency. At the same time, the collision and mixing between the reactants increases the turbulence and mixing degree of the reaction, making the reaction between the materials more complete. In addition, the droplets sprayed from the rotating inner cylinder 8 have a certain kinetic energy, which can wash away and dilute the solute that has precipitated onto the inner wall of the outer cylinder 2 or into the dispersion holes 81 around the inner cylinder 8, thereby preventing blockage.

[0051] The following are some experimental examples. Examples 1-5 all use the reaction evaporation apparatus of this invention, but with different parameters. The comparative example uses a thin-film evaporator from the prior art. The specific operation process and parameters are as follows:

[0052] Example 1:

[0053] (1) Prepare 200g of 75wt% tetramethylammonium carbonate (TMAM) methanol solution, connect the first feed pipe 7 and the second feed pipe 9 to a peristaltic pump, connect a vacuum pump to the vacuum connection port 13, and connect a constant temperature oil bath to the heat medium inlet 31 and the heat medium outlet 32.

[0054] (2) Turn on the oil bath and wait for the temperature to stabilize at 60℃;

[0055] (3) Turn on the vacuum pump and evaporate the reaction evaporation device to 0.1 bar;

[0056] (4) Turn on the peristaltic pump connected to the first feed pipe 7 and pump the TMAM solution into the reaction evaporation device through the first feed pipe 7. The feed rate is controlled at 2g / min.

[0057] (5) Weigh 100g of aqueous solution, turn on the peristaltic pump connected to the second feed pipe 9, and pump the aqueous solution into the reaction evaporation device through the second feed pipe 9. The feed rate is controlled at 2g / min.

[0058] (6) While feeding, the first drive unit 51 and the second drive unit 111 are turned on, so that the material distributor 6 and the inner cylinder 8 rotate in the same direction, and the outer cylinder 2 rotates in the opposite direction at a speed of 150 rpm.

[0059] (7) Control the height of the hollow telescopic rod 18, and directly extract the material without using circulation.

[0060] Example 2:

[0061] (1) Prepare 200g of 75wt% tetramethylammonium carbonate (TMAM) methanol solution, connect the first feed pipe 7 and the second feed pipe 9 to a peristaltic pump, connect a vacuum pump to the vacuum connection port 13, and connect a constant temperature oil bath to the heat medium inlet 31 and the heat medium outlet 32.

[0062] (2) Turn on the oil bath and wait for the temperature to stabilize at 70℃;

[0063] (3) Turn on the vacuum pump and evaporate the reaction evaporation device to 1 bar;

[0064] (4) Turn on the peristaltic pump connected to the first feed pipe 7 and pump the TMAM solution into the reaction evaporation device through the first feed pipe 7. The feed rate is controlled at 20g / min.

[0065] (5) Weigh 100g of aqueous solution, turn on the peristaltic pump connected to the second feed pipe 9, and pump the aqueous solution into the reaction evaporation device through the second feed pipe 9. The feed rate is controlled at 20g / min.

[0066] (6) While feeding, the first drive unit 51 and the second drive unit 111 are turned on, so that the material distributor 6 and the inner cylinder 8 rotate in the same direction, and the outer cylinder 2 rotates in the opposite direction at a speed of 150 rpm.

[0067] (7) Control the height of the hollow telescopic rod 18, and directly extract the material without using circulation.

[0068] Example 3:

[0069] (1) Prepare 200g of 75wt% tetramethylammonium carbonate (TMAM) methanol solution, connect the first feed pipe 7 and the second feed pipe 9 to a peristaltic pump, connect a vacuum pump to the vacuum connection port 13, and connect a constant temperature oil bath to the heat medium inlet 31 and the heat medium outlet 32.

[0070] (2) Turn on the oil bath and wait for the temperature to stabilize at 100℃;

[0071] (3) Turn on the vacuum pump and evaporate the reaction evaporation device to 1 bar;

[0072] (4) Turn on the peristaltic pump connected to the first feed pipe 7 and pump the TMAM solution into the reaction evaporation device through the first feed pipe 7. The feed rate is controlled at 2g / min.

[0073] (5) Weigh 100g of aqueous solution, turn on the peristaltic pump connected to the second feed pipe 9, and pump the aqueous solution into the reaction evaporation device through the second feed pipe 9. The feed rate is controlled at 2g / min.

[0074] (6) While feeding, the first drive unit 51 and the second drive unit 111 are turned on, so that the material distributor 6 and the inner cylinder 8 rotate in the same direction, and the outer cylinder 2 rotates in the opposite direction at a speed of 300 rpm.

[0075] (7) Control the height of the hollow telescopic rod 18, and directly extract the material without using circulation.

[0076] Example 4:

[0077] (1) Prepare 200g of 75wt% tetramethylammonium carbonate (TMAM) methanol solution, connect the first feed pipe 7 and the second feed pipe 9 to a peristaltic pump, connect a vacuum pump to the vacuum connection port 13, and connect a constant temperature oil bath to the heat medium inlet 31 and the heat medium outlet 32.

[0078] (2) Turn on the oil bath and wait for the temperature to stabilize at 100℃;

[0079] (3) Turn on the vacuum pump and evaporate the reaction evaporation device to 0.5 bar;

[0080] (4) Turn on the peristaltic pump connected to the first feed pipe 7 and pump the TMAM solution into the reaction evaporation device through the first feed pipe 7. The feed rate is controlled at 2g / min.

[0081] (5) Weigh 100g of aqueous solution, turn on the peristaltic pump connected to the second feed pipe 9, and pump the aqueous solution into the reaction evaporation device through the second feed pipe 9. The feed rate is controlled at 2g / min.

[0082] (6) While feeding, the first drive unit 51 and the second drive unit 111 are turned on, so that the material distributor 6 and the inner cylinder 8 rotate in the same direction, and the outer cylinder 2 rotates in the opposite direction at a speed of 300 rpm.

[0083] (7) Control the height of the hollow telescopic rod 18, set the circulation ratio to 2:1, and extract the material.

[0084] Example 5:

[0085] (1) Prepare 200g of 75wt% tetramethylammonium carbonate (TMAM) methanol solution, connect the first feed pipe 7 and the second feed pipe 9 to a peristaltic pump, connect a vacuum pump to the vacuum connection port 13, and connect a constant temperature oil bath to the heat medium inlet 31 and the heat medium outlet 32.

[0086] (2) Turn on the oil bath and wait for the temperature to stabilize at 100℃;

[0087] (3) Turn on the vacuum pump and evaporate the reaction evaporation device to 0.1 bar;

[0088] (4) Turn on the peristaltic pump connected to the first feed pipe 7 and pump the TMAM solution into the reaction evaporation device through the first feed pipe 7. The feed rate is controlled at 2g / min.

[0089] (5) Weigh 100g of aqueous solution, turn on the peristaltic pump connected to the second feed pipe 9, and pump the aqueous solution into the reaction evaporation device through the second feed pipe 9. The feed rate is controlled at 2g / min.

[0090] (6) While feeding, the first drive unit 51 and the second drive unit 111 are turned on, so that the material distributor 6 and the inner cylinder 8 rotate in the same direction, and the outer cylinder 2 rotates in the opposite direction at a speed of 500 rpm.

[0091] (7) Control the height of the hollow telescopic rod 18, set the circulation ratio to 2:1, and extract the material.

[0092] Comparative example:

[0093] (1) Prepare 200g of 75wt% tetramethylammonium carbonate (TMAM) methanol solution and 100g of water, mix them evenly and set aside. Connect the feed port of the thin film evaporator to the peristaltic pump, connect the vacuum pump to the vacuum port of the thin film evaporator, and connect the constant temperature oil bath to the heat medium inlet and heat medium outlet.

[0094] (2) Turn on the oil bath and wait for the temperature to stabilize at 100℃;

[0095] (3) Turn on the vacuum pump and evacuate the thin film evaporator to 0.1 bar;

[0096] (4) Turn on the peristaltic pump and pump the mixed solution into the thin film evaporator. The feed rate is controlled at 2 g / min.

[0097] (5) While feeding, turn on the motor to drive the scraper connected to the motor to rotate at a speed of 500 rpm;

[0098] (6) Extracting materials.

[0099] The methanol content of the materials separated in Examples 1-5 and the comparative examples was characterized using gas chromatography headspace sampling. The test results are as follows:

[0100]

[0101] As can be seen from the table above, when using the reaction evaporation device of the present invention, no blockage occurred during the reaction evaporation process, even when different parameters were adjusted. In contrast, in the comparative example, a conventional thin-film evaporator was used, and blockage occurred between the scraper and the cylinder.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reaction evaporation apparatus, characterized in that, include: Base; The outer cylinder has a through cavity, including a first fixing part, a rotating part and a second fixing part arranged in sequence. The outer cylinder has a vacuum connection port, and the outer wall of the first fixing part is fixedly connected to the base. A heating jacket is fitted over the outer cylinder and is provided with a heat medium inlet and a heat medium outlet. A cap is fixedly connected to the second fixing part and covers the receiving cavity; A first drive assembly passes through the cover and is rotatably connected to the cover; A fabric feeder is disposed within the receiving cavity. A first driving component passes through the fabric feeder and drives the fabric feeder to rotate. The fabric feeder has a fabric cavity and a fabric hole that extends circumferentially. The fabric feeder also has a feed hole that communicates with the fabric cavity. The first feed pipe passes through the second fixing part and conveys the first material to the feed hole; The inner cylinder is disposed within the receiving cavity. The first driving component penetrates the inner cylinder and drives the inner cylinder to rotate. The inner cylinder is provided with a receiving cavity and a dispersion hole is provided circumferentially. The inner cylinder is also provided with a feed port that communicates with the receiving cavity. The second feed pipe passes through the second fixed part and conveys the second material to the feed port; A sealing component, which is connected to the first fixing part and covers the receiving cavity, and a discharge pipe is connected to the sealing component; The second driving component passes through the sealing member, is rotatably connected to the sealing member, and is fixedly connected to the inner wall of the rotating part, thereby driving the rotating part to rotate. The first driving component drives the fabric distributor and the inner cylinder to rotate synchronously, and the second driving component drives the rotating part of the outer cylinder to rotate in the opposite direction. The first material sprayed by the fabric distributor onto the inner wall of the outer cylinder and the second material sprayed by the inner cylinder onto the inner wall of the outer cylinder collide and mix in the opposite direction in the form of droplets. A hollow telescopic rod, comprising a fixed part and a movable part, wherein the fixed part penetrates the inner cylinder and is connected to the inner cylinder.

2. The reaction evaporation apparatus according to claim 1, characterized in that, Also includes: A first dispersing plate is connected to the first driving assembly within the accommodating cavity and rotates under the drive of the first driving assembly. A first leakage hole is provided through the first dispersing plate.

3. The reaction evaporation apparatus according to claim 2, characterized in that: Multiple first guide plates are connected to the first dispersion plate.

4. The reaction evaporation apparatus according to any one of claims 1-3, characterized in that, Also includes: The second dispersing plate is connected to the first driving component inside the fabric cavity and rotates under the drive of the first driving component. The second dispersing plate has a second leakage hole through it.

5. The reaction evaporation apparatus according to claim 4, characterized in that: Multiple second guide plates are connected to the second dispersion plate.

6. The reaction evaporation apparatus according to any one of claims 1-3, characterized in that, The first driving component includes: A first driving member, the output shaft of which passes through the cover and is rotatably connected to the cover; A rotating shaft is fixedly connected to the output shaft of the first driving component. The rotating shaft passes through the fabric distributor and the inner cylinder in sequence, and is fixedly connected to the fabric distributor and the inner cylinder.

7. The reaction evaporation apparatus according to any one of claims 1-3, characterized in that, The second driving component includes: The second driving member has an output shaft that passes through the sealing member and is rotatably connected to the sealing member; Multiple connecting arms, with their opposite ends respectively fixedly connected to the output shaft of the second drive member and the inner wall of the rotating part.

8. The reaction evaporation apparatus according to any one of claims 1-3, characterized in that, Also includes: A first cofferdam is connected to the outer wall of the inner cylinder, the feed inlet is located inside the first cofferdam, and the second feed pipe extends to the first cofferdam.

9. The reaction evaporation apparatus according to any one of claims 1-3, characterized in that, Also includes: The second cofferdam is connected to the outer wall of the material distributor, the feed hole is located inside the second cofferdam, and the first feed pipe extends to the second cofferdam.

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