Solvent evaporation device for rubber polymer production

Abstract

The utility model discloses a solvent evaporation device for rubber polymer production, which comprises a coagulation kettle, a partition plate is vertically and fixedly connected in the coagulation kettle, the coagulation kettle is divided into a stirring chamber and a placing chamber by the partition plate, a first connecting pipe is fixedly connected in the lower part of the partition plate, and the left side of the first connecting pipe is fixedly connected with a suction cup. The left side of the suction cup is fixedly connected with an isolation net, the right end of the first connecting pipe is fixedly connected with a pump body in the containing chamber, the upper portion of the pump body is fixedly connected with a second connecting pipe, and the left side of the second connecting pipe is fixedly connected with a third connecting pipe. The rubber polymer is stirred by arranging the stirring mechanism, rubber particles are prevented from entering the atomization spray head to cause blockage by arranging the isolation net, and the isolation net is cleaned by arranging the cleaning mechanism, so that the atomization spray head can be recycled for a long time.

Description

Technical Field

[0001] This utility model relates to the field of rubber polymer production technology, specifically to a solvent evaporation device for rubber polymer production. Background Technology

[0002] The production process of some common rubber polymers typically includes polymerization, coagulation, and post-processing. In the polymerization unit, one or more monomers undergo polymerization in a solvent with the aid of a catalyst to obtain a polymer solution. This solution then enters the coagulation unit, where the solvent in the polymer is separated by flash evaporation using steam and hot water via a water separation method. The resulting aqueous polymer undergoes further post-processing, such as drying, to obtain the final polymer product. The water separation coagulation process involves dispersing the polymer particles into droplets in hot water under mechanical stirring. Steam is directly introduced into the reactor, and the latent heat released by the condensation of some of the steam is used to heat the hot water. This heat is then transferred to the polymer particles. At this point, the solvent and monomers in the droplet-shaped polymer solution vaporize upon heating, and the solvent gas is carried out of the coagulation reactor by the steam in a specific proportion, achieving solvent removal.

[0003] In most current equipment, the method used in the first reactor for separating entrained particles is to pump hot water separated from the colloidal particles in the post-treatment process to a ring-shaped tubular spray device with micropores located at the top of the reactor. The pressure provided by the pump sprays the liquid mist from the micropores, intercepting the particles from the gas phase and returning them to the reactor with the droplets. The initial effect is obvious, effectively alleviating the clogging problem of the subsequent system. However, the effect becomes worse over time. This is mainly because the hot water recycled from the post-treatment inevitably carries a small amount of fine colloidal particles, which accumulate over time and clog the spray micropores, causing uneven distribution of the liquid mist and affecting the interception effect.

[0004] In addition, existing solvent evaporation devices are inefficient in the solvent recovery process, leading to solvent waste and environmental pollution.

[0005] Because the spray system is prone to clogging, it requires frequent shutdowns for cleaning, which increases equipment maintenance costs and the risk of production interruptions.

[0006] Existing solvent evaporation devices consume a lot of energy during the heating and evaporation process, which is not conducive to energy conservation and emission reduction.

[0007] Therefore, it is essential to design solvent evaporation equipment for rubber polymer production. Utility Model Content

[0008] The purpose of this invention is to provide a solvent evaporation device for rubber polymer production, so as to solve the problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a solvent evaporation device for rubber polymer production, including a coagulation vessel. A partition is vertically fixedly connected inside the coagulation vessel, dividing it into a stirring chamber and a placement chamber. A first connecting pipe is fixedly connected to the lower part of the partition. A suction cup is fixedly connected to the left side of the first connecting pipe, and an isolation mesh is fixedly connected to the left side of the suction cup. A pump body is fixedly connected to the right end of the first connecting pipe within the placement chamber. A second connecting pipe is fixedly connected above the pump body, and a third connecting pipe is fixedly connected to the left side of the second connecting pipe. The left end of the third connecting pipe passes through the partition and is fixedly connected to a horizontal plate in the mixing chamber. Multiple atomizing nozzles are fixedly connected below the horizontal plate. Multiple flow holes are opened inside the horizontal plate. The third connecting pipe, flow holes, and atomizing nozzles are all interconnected. A stirring mechanism is installed in the mixing chamber. A cleaning mechanism is installed inside the stirring mechanism. A hot water inlet and a glue inlet are fixedly connected to the left side of the condensation vessel. A gas phase outlet is fixedly connected to the top of the condensation vessel. A discharge pipe is fixedly connected to the bottom of the condensation vessel. A control valve is installed inside the discharge pipe. A steam inlet is fixedly connected to the front side of the condensation vessel.

[0010] According to the above technical solution, the stirring mechanism includes a drive motor, which is fixedly installed in the placement chamber. The output end of the drive motor passes through a partition and is fixedly connected to a vertical plate. Two stirring rods are fixedly connected to the left side of the vertical plate.

[0011] According to the above technical solution, the cleaning mechanism includes two paint plates. The right side of the vertical plate has two symmetrical placement slots. The two paint plates are installed in the two placement slots, and the right side of the paint plates is tightly attached to the isolation net.

[0012] According to the above technical solution, the placement groove has symmetrical first slots at its upper and lower ends. A telescopic spring is fixedly connected in the first slot. A round-headed locking block is fixedly connected to the telescopic end of the telescopic spring. Semicircular slots are symmetrically opened on both sides of the paint plate. The round-headed end of the round-headed locking block cooperates with the semicircular slot.

[0013] According to the above technical solution, the two sides of the round-headed card block are symmetrically fixedly connected with limiting blocks, and the two sides of the first slot are symmetrically opened with limiting grooves, and the limiting blocks are slidably connected in the limiting grooves.

[0014] According to the above technical solution, an observation port is opened on the front side of the condensation vessel and on the right side of the steam inlet, and an observation window is fixedly connected to the observation port by fastening bolts.

[0015] According to the above technical solution, the control valve includes a baffle, the size of which matches the internal size of the discharge pipe. Two connecting rods are symmetrically fixedly connected to both sides of the baffle. Two rotating holes are symmetrically opened on both sides of the discharge pipe. The two connecting rods are rotatably connected in the two rotating holes. The other ends of the two connecting rods pass through the rotating holes and are fixedly connected to a rotating disk.

[0016] According to the above technical solution, two support legs are fixedly connected to the bottom of the condensation vessel.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0018] When using this device, the adhesive solution is introduced into the condensation vessel through the adhesive solution inlet, hot water is introduced into the condensation vessel through the hot water inlet, and steam is introduced through the steam inlet. By filling the condensation vessel with steam, the solvent in the rubber polymer evaporates. During the solvent evaporation process, the pump is activated, and the pump transfers a portion of the hot water inside the stirring chamber to the atomizing nozzle to spray the evaporated solvent, intercepting small rubber particles inside the vaporized solvent. This device can recover and reuse some of the hot water, achieving energy-saving effects and ensuring efficient condensation and recovery of solvent vapor. The device is equipped with a stirring mechanism to stir the rubber polymer, and an isolation screen to prevent rubber particles from entering the atomizing nozzle and causing blockage. A cleaning mechanism is also provided to clean the isolation screen. This allows for long-term cyclical use, reducing downtime and improving equipment operating and production efficiency. Through the efficient heat transfer and heat recovery systems, energy consumption is reduced, achieving energy conservation and emission reduction. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is the first perspective view of the present invention;

[0021] Figure 2 This is the second perspective view of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall front sectional view of this utility model;

[0023] Figure 4 This is the utility model Figure 3 Enlarged view of point A in the image;

[0024] In the diagram: 1. Coagulation vessel, 2. Baffle plate, 3. Stirring chamber, 4. Placement chamber, 5. First connecting pipe, 6. Suction cup, 7. Isolation net, 8. Pump body, 9. Second connecting pipe, 10. Third connecting pipe, 11. Horizontal plate, 12. Atomizing nozzle, 13. Flow hole, 14. Hot water inlet, 15. Adhesive inlet, 16. Gas phase outlet, 17. Discharge pipe, 18. Steam inlet, 19. Drive motor, 20. Vertical plate, 21. Stirring rod, 22. Paint plate, 23. Placement groove, 24. First groove opening, 25. Telescopic spring, 26. Round head locking block, 27. Semi-circular groove, 28. Limiting block, 29. Limiting groove, 30. Observation port, 31. Observation window, 32. Baffle plate, 33. Connecting rod, 34. Rotating hole, 35. Rotating disk, 36. Support leg. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4This utility model provides a technical solution: a solvent evaporation device for rubber polymer production, including a coagulation vessel 1. A partition 2 is vertically fixedly connected inside the coagulation vessel 1, dividing it into a stirring chamber 3 and a placement chamber 4. A first connecting pipe 5 is fixedly connected inside the lower part of the partition 2. A suction cup 6 is fixedly connected to the left side of the first connecting pipe 5, and an isolation net 7 is fixedly connected to the left side of the suction cup 6. A pump body 8 is fixedly connected to the right end of the first connecting pipe 5 inside the placement chamber 4, and a second [unclear - possibly a device or apparatus] is fixedly connected above the pump body 8. A connecting pipe 9 is connected to a third connecting pipe 10, which is fixedly connected to the left side of the second connecting pipe 9. The left end of the third connecting pipe 10 passes through the partition 2 and is fixedly connected to a horizontal plate 11 inside the stirring chamber 3. Multiple atomizing nozzles 12 are fixedly connected below the horizontal plate 11. Multiple flow holes 13 are opened inside the horizontal plate 11. The third connecting pipe 10, the flow holes 13, and the atomizing nozzles 12 are all interconnected. A stirring mechanism is installed inside the stirring chamber 3, and a cleaning mechanism is installed inside the stirring mechanism. Hot water is fixedly connected to the left side of the condensation vessel 1. The device includes an inlet 14 and a liquid inlet 15. A gas outlet 16 is fixedly connected to the top of the coagulation vessel 1, and a discharge pipe 17 is fixedly connected to the bottom of the coagulation vessel 1. A control valve is installed inside the discharge pipe 17. A steam inlet 18 is fixedly connected to the front of the coagulation vessel 1. When using this device, the liquid is introduced into the coagulation vessel 1 through the liquid inlet 15, hot water is introduced into the coagulation vessel 1 through the hot water inlet 14, and steam is introduced through the steam inlet 18. By filling the coagulation vessel 1 with steam, the solvent in the rubber polymer is purified. During solvent evaporation, pump 8 is activated, transferring a portion of the hot water from the mixing chamber 3 to the atomizing nozzle 12 to spray the vaporized solvent. This process intercepts small particles within the vaporized solvent, allowing for the recycling and reuse of some hot water and achieving energy savings. The device is equipped with a stirring mechanism to agitate the rubber polymer, and a barrier screen 7 to prevent rubber particles from entering the atomizing nozzle 12 and causing blockage. A cleaning mechanism is also provided to clean the barrier screen 7, enabling long-term cyclical use.

[0027] The stirring mechanism includes a drive motor 19, which is fixedly installed in the placement chamber 4. The output end of the drive motor 19 passes through the partition 2 and is fixedly connected to a vertical plate 20. Two stirring rods 21 are fixedly connected to the left side of the vertical plate 20. When the drive motor 19 is started, the drive motor 19 drives the vertical plate 20 to rotate, and the vertical plate 20 drives the two stirring rods 21 to rotate and stir.

[0028] The cleaning mechanism includes two paint plates 22. The vertical plate 20 has two symmetrical placement slots 23 on its right side. The two paint plates 22 are installed in the two placement slots 23. The right side of the paint plates 22 is in close contact with the isolation net 7. During the rotation of the vertical plate 20, the vertical plate 20 drives the two paint plates 22 to rotate. During the rotation of the two paint plates 22, the isolation net 7 is cleaned by painting to prevent the isolation net 7 from becoming blocked.

[0029] The placement groove 23 has symmetrically opened first slots 24 at its upper and lower ends. A telescopic spring 25 is fixedly connected inside the first slot 24. A round-headed locking block 26 is fixedly connected to the telescopic end of the telescopic spring 25. Semicircular slots 27 are symmetrically opened on both sides of the painting board 22. The round-headed end of the round-headed locking block 26 cooperates with the semicircular slot 27. By setting the telescopic spring 25, the telescopic spring 25 pushes the round-headed locking block 26 to cooperate with the semicircular slot 27, which can fix the painting board 22. When it needs to be replaced, simply pull the painting board 22 outward, the telescopic spring 25 is compressed, and the round-headed end of the round-headed locking block 26 is offset from the semicircular slot 27, so that the painting board 22 can be disassembled for easy replacement and installation.

[0030] The round head block 26 is symmetrically fixedly connected to the two sides of the limiting block 28. The first slot 24 has symmetrically opened limiting grooves 29 on both sides inside. The limiting block 28 is slidably connected in the limiting groove 29. By setting the limiting block 28 and the limiting groove 29, the round head block 26 is limited.

[0031] An observation port 30 is provided on the front side of the condensing vessel 1 and on the right side of the steam inlet 18. An observation window 31 is fixedly connected to the observation port 30 by fastening bolts. The observation window 31 allows observation of the condensing vessel 1. It is fixed by fastening bolts and can be disassembled for easy cleaning of the interior or replacement of parts.

[0032] The control valve includes a baffle 32, the size of which matches the internal size of the discharge pipe 17. Two connecting rods 33 are symmetrically fixedly connected to both sides of the baffle 32. Two rotating holes 34 are symmetrically opened on both sides of the discharge pipe 17. The two connecting rods 33 are rotatably connected within the two rotating holes 34. The other ends of the two connecting rods 33 pass through the rotating holes 34 and are fixedly connected to a rotating disk 35. When discharge is required, simply rotate the rotating disk 35. The rotating disk 35 drives the connecting rods 33 and the baffle 32 to rotate 90 degrees, and the baffle 32 is in a vertical state, allowing discharge. When the baffle 32 is in a horizontal state, it is in a closed state.

[0033] Two support legs 36 are fixedly connected to the bottom of the condensation vessel 1;

[0034] In using this invention, the adhesive is introduced into the coagulation vessel 1 through the adhesive inlet 15, hot water is introduced into the coagulation vessel 1 through the hot water inlet 14, and steam is introduced through the steam inlet 18. By filling the coagulation vessel 1 with steam, the solvent in the rubber polymer evaporates. During the solvent evaporation process, the pump 8 is started, and the pump 8 transfers a portion of the hot water inside the stirring chamber 3 to the atomizing nozzle 12 to spray the evaporated solvent, intercepting small adhesive particles inside the vaporized solvent. This device can recover and reuse some of the hot water, achieving energy-saving effects. The drive motor 19 is started, and the drive motor 19 drives the vertical plate 20 to rotate. The vertical plate 20 drives the two stirring rods 21 to rotate and stir. During the rotation of the vertical plate 20... During the process, the vertical plate 20 drives the two painting plates 22 to rotate. During the rotation of the two painting plates 22, they clean the isolation net 7 by painting, preventing the isolation net 7 from becoming clogged. By setting a telescopic spring 25, the telescopic spring 25 pushes the round head block 26 to cooperate with the semi-circular groove 27, which can fix the painting plate 22. When it needs to be replaced, simply pull the painting plate 22 outward, the telescopic spring 25 is compressed, and the round head end of the round head block 26 is offset from the semi-circular groove 27, so that the painting plate 22 can be disassembled for easy replacement and installation. All the components of this device are general standard parts or parts known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0035] In solvent evaporation equipment used in rubber polymer production, the process of transferring heat from steam to rubber particles via hot water involves multiple steps and mechanisms: The following is a detailed description:

[0036] Steam enters the condenser 1 through steam inlet 18. The steam temperature is typically above 100℃, possessing a high latent heat. Upon entering the condenser 1, the steam comes into contact with the hot water and colloidal particles inside, initiating condensation. During condensation, the steam releases a large amount of latent heat, which is transferred to the hot water through heat conduction. The temperature of the hot water subsequently rises, becoming high-temperature hot water.

[0037] Pump body 8 draws some of the hot water from mixing chamber 3 to placement chamber 4, and then through second connecting pipe 9 and third connecting pipe 10 to horizontal plate 11, finally spraying it out through atomizing nozzle 12 to form fine water mist. This water mist comes into full contact with the colloidal particles, transferring heat to them.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A solvent evaporation apparatus for rubber polymer production, comprising a condensation vessel (1), characterized in that: The coagulation vessel (1) is vertically fixedly connected to a partition (2), which divides the coagulation vessel (1) into a stirring chamber (3) and a placement chamber (4). A first connecting pipe (5) is fixedly connected to the lower part of the partition (2). A suction cup (6) is fixedly connected to the left side of the first connecting pipe (5). An isolation net (7) is fixedly connected to the left side of the suction cup (6). A pump body (8) is fixedly connected to the right end of the first connecting pipe (5) in the placement chamber (4). A second connecting pipe (9) is fixedly connected to the upper part of the pump body (8). A third connecting pipe (10) is fixedly connected to the left side of the second connecting pipe (9). The left end of the third connecting pipe (10) passes through the partition (2) and is fixedly connected to a horizontal plate in the stirring chamber (3). (11) Multiple atomizing nozzles (12) are fixedly connected to the bottom of the horizontal plate (11). Multiple flow holes (13) are opened inside the horizontal plate (11). The third connecting pipe (10), flow holes (13) and atomizing nozzles (12) are all interconnected. A stirring mechanism is installed in the stirring chamber (3). A cleaning mechanism is installed in the stirring mechanism. A hot water inlet (14) and a glue inlet (15) are fixedly connected to the left side of the condensation vessel (1). A gas phase outlet (16) is fixedly connected to the top of the condensation vessel (1). A discharge pipe (17) is fixedly connected to the bottom of the condensation vessel (1). A control valve is installed in the discharge pipe (17). A steam inlet (18) is fixedly connected to the front side of the condensation vessel (1).

2. The solvent evaporation apparatus for rubber polymer production according to claim 1, characterized in that: The stirring mechanism includes a drive motor (19), which is fixedly installed in the placement chamber (4). The output end of the drive motor (19) is fixedly connected to a vertical plate (20) through the partition (2). Two stirring rods (21) are fixedly connected to the left side of the vertical plate (20).

3. The solvent evaporation apparatus for rubber polymer production according to claim 2, characterized in that: The cleaning mechanism includes two paint plates (22). The vertical plate (20) has two symmetrical placement slots (23) on its right side. The two paint plates (22) are installed in the two placement slots (23). The right side of the paint plate (22) is tightly attached to the isolation net (7).

4. The solvent evaporation apparatus for rubber polymer production according to claim 3, characterized in that: The placement groove (23) has symmetrically opened first slots (24) at its upper and lower ends. A telescopic spring (25) is fixedly connected inside the first slot (24). A round-headed locking block (26) is fixedly connected to the telescopic end of the telescopic spring (25). Semi-circular grooves (27) are symmetrically opened on both sides of the paint board (22). The round-headed end of the round-headed locking block (26) cooperates with the semi-circular groove (27).

5. The solvent evaporation apparatus for rubber polymer production according to claim 4, characterized in that: The round-headed locking block (26) is symmetrically fixedly connected to the two sides of the limiting block (28), and the first slot (24) has symmetrically opened limiting grooves (29) on both sides inside, and the limiting block (28) is slidably connected in the limiting groove (29).

6. The solvent evaporation apparatus for rubber polymer production according to claim 5, characterized in that: An observation port (30) is provided on the front side of the condensation vessel (1) and on the right side of the steam inlet (18). An observation window (31) is fixedly connected to the observation port (30) by fastening bolts.

7. The solvent evaporation apparatus for rubber polymer production according to claim 6, characterized in that: The control valve includes a baffle (32), the size of which matches the internal size of the discharge pipe (17). Two connecting rods (33) are symmetrically fixedly connected to both sides of the baffle (32). Two rotating holes (34) are symmetrically opened on both sides of the discharge pipe (17). The two connecting rods (33) are rotatably connected in the two rotating holes (34). The other end of the two connecting rods (33) passes through the rotating holes (34) and is fixedly connected to a rotating disk (35).

Images