Continuous flash evaporation device for C5 resin production

Abstract

The utility model discloses a continuous flash evaporation device for C5 resin production, which belongs to the technical field of resin production, and comprises a supporting seat and a supporting plate arranged above the supporting seat, two connecting frames are symmetrically fixed on the outer wall of one side of the supporting seat, connecting blocks are rotatably connected in the connecting frames, and the connecting blocks are connected with the supporting seat. A forward and reverse motor is installed on the outer wall of one side of the supporting seat, a first fixing plate and a second fixing plate are fixed to the surface of the supporting plate, an outer cylinder is fixed between the first fixing plate and the second fixing plate, an inner cylinder is fixed in the outer cylinder, and a plurality of heat exchange fins are fixed to the outer wall of the inner cylinder. A rotating motor is installed on the outer wall of one side of the first fixing plate, a rotating shaft is fixed to the output end of the rotating motor, and scraping plates are arranged on the two sides of the rotating shaft. According to the continuous flash evaporation device for C5 resin production, continuous flash evaporation can be conducted, the resin production efficiency is improved, discharging is more convenient, and meanwhile the inner wall of the inner cylinder can be automatically cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of resin production, and particularly relates to a continuous flash evaporation device for producing C5 resin. Background Technique

[0002] C5 petroleum resin has the advantages of light color, good alkali resistance, water resistance and weather resistance, and good compatibility with natural rubber. It is widely used as a tackifying resin for natural rubber and synthetic rubber, and its application is becoming more and more extensive. At present, the production of C5 petroleum resin in China mostly adopts the catalytic polymerization process, and its process includes: batching, polymerization, neutralization washing, flash evaporation removal, melt granulation, packaging and other processes.

[0003] During the production process of petroleum resin, it is necessary to flash the extract to separate its vapor and liquid, and then condense and collect the petroleum resin vapor. The existing flash evaporator for producing petroleum resin usually only performs single flash evaporation on the extract, not only the heat utilization rate of flash evaporation is relatively low, but also the extraction rate of petroleum resin vapor is relatively low. Content of the Utility Model

[0004] The purpose of the utility model is to provide a continuous flash evaporation device for producing C5 resin, so as to solve the problem that the existing flash evaporator for producing petroleum resin usually only performs single flash evaporation on the extract, not only the heat utilization rate of flash evaporation is relatively low, but also the extraction rate of petroleum resin vapor is relatively low as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A continuous flash evaporation device for producing C5 resin, including a support base and a support plate arranged above the support base. Two connecting frames are symmetrically fixed on one outer wall of the support base. A connecting block fixedly connected to the support plate is rotatably connected inside the connecting frame. A positive and negative motor is installed on one outer wall of the support base.

[0006] A first fixing plate and a second fixing plate are respectively fixed on the surface of the support plate. An outer cylinder for C5 resin flash evaporation is fixed between the first fixing plate and the second fixing plate. An inner cylinder is fixed inside the outer cylinder. A plurality of heat exchange fins are fixed on the outer wall of the inner cylinder. A rotating motor is installed on one outer wall of the first fixing plate. A rotating shaft is fixed at the output end of the rotating motor. Scrapers are arranged on both sides of the rotating shaft. A nitrogen generator is installed on one outer wall of the second fixing plate, and the air outlet pipe of the nitrogen generator extends into the inner cylinder.

[0007] In a further embodiment, a guiding screw rod is fixed at the output end of the positive and negative motor. A guiding block is threadedly connected to the outer wall of the guiding screw rod, and a push rod is arranged above the guiding block.

[0008] In a further embodiment, a limiting hole is formed in the guiding block, and a limiting post fixedly connected to the inner wall of the supporting seat is movably connected in the limiting hole of the guiding block. Both ends of the push-pull rod are rotatably connected to connecting seats fixedly connected to the supporting plate and the guiding block.

[0009] In a further embodiment, a plurality of stirring paddles are fixedly arranged on the outer walls on both sides of the rotating shaft, and supporting sleeves are fixedly arranged on the outer walls on both sides of the rotating shaft.

[0010] In a further embodiment, a supporting spring is arranged in the supporting sleeve, a supporting post fixedly connected to the scraping plate is arranged on one side of the supporting spring, and limiting sliding blocks are fixedly arranged on the outer walls on both sides of the supporting post.

[0011] In a further embodiment, a water inlet hole and a water outlet hole are respectively formed in the top of the outer cylinder, and a water inlet pipe and a water outlet pipe are respectively fixedly arranged in the water inlet hole and the water outlet hole at the top of the outer cylinder.

[0012] In a further embodiment, a feed pipe extending into the inner cylinder is fixedly arranged at the top of the outer cylinder, a discharge pipe extending into the inner cylinder is fixedly arranged at the bottom of the outer cylinder, and an exhaust pipe extending into the inner cylinder is fixedly arranged on the outer wall on one side of the outer cylinder.

[0013] The technical effects and advantages of the present utility model:

[0014] For the continuous flash evaporation device for C5 resin production, hot fluid is injected between the outer cylinder and the inner cylinder through the water inlet pipe. The hot fluid exchanges heat with the inner cylinder through the heat exchange fins, thereby accelerating the heat exchange speed of the flash evaporation device. The heated fluid after heat exchange can be discharged through the water outlet pipe. The water inlet pipe and the water outlet pipe form a flowing channel. Through the flow of the hot fluid, the heat exchange speed between the hot solution and the heat exchange fins is increased, heat loss is reduced, and continuous addition of hot fluid to the outer cylinder enables continuous flash evaporation operation, avoiding the reduction of the temperature in the inner cylinder affecting the flash evaporation efficiency.

[0015] By driving the guiding screw to rotate through the forward and reverse motor, the guiding block is driven to move. Cooperating with the push-pull rod, one end of the supporting plate is lifted, so that the supporting plate rotates along the position of the connecting block, causing the outer cylinder and the inner cylinder to tilt. After the resin production is completed, it can be quickly discharged from the discharge pipe, avoiding the situation of resin residue.

[0016] By driving the rotating shaft to rotate through the rotating motor, the stirring paddles and the supporting sleeves can be driven to rotate. The stirring paddles can stir the raw materials, improving the flash evaporation efficiency. At the same time, when the supporting sleeves rotate, the scraping plates can be driven to rotate, thereby automatically cleaning the inner wall of the inner cylinder, ensuring the cleanliness of the inner cylinder. The supporting spring supports the supporting post, so that the scraping plates can always be attached to the inner wall of the inner cylinder, ensuring the cleaning effect of the scraping plates.

[0017] After filling nitrogen into the inner cylinder through a nitrogen generator, the gas-liquid two-phase balance of the original system is broken, the partial pressure of the solvent is reduced, the precipitation amount of the solvent in the liquid phase increases, and the recovery rate of the solvent is improved. At the same time, some oligomers will also precipitate, and the volatile content of the resin product will be reduced. At the same time, the increased pressure enables the evaporation device to appropriately reduce the evaporation temperature, reduce the energy consumption input, and further reduce the production cost of the resin product. The continuous flash evaporation device for C5 resin production can not only perform continuous flash evaporation to improve the production efficiency of the resin, but also facilitate discharging, and can automatically clean the inner wall of the inner cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the connecting frame of the present invention;

[0021] Figure 3 is a schematic structural diagram of the forward and reverse motor of the present invention;

[0022] Figure 4 is a schematic structural diagram of the outer cylinder in a cut-open state of the present invention;

[0023] Figure 5 For the present invention Figure 4 magnified view of part A;

[0024] Figure 6 is an exploded view of the support sleeve of the present invention.

[0025] In the figure: 1, support base; 2, connecting frame; 3, connecting block; 4, support plate; 5, support pad; 6, forward and reverse motor; 7, guide screw; 8, guide block; 9, push-pull rod; 10, limit post; 11, fixing plate one; 12, fixing plate two; 13, support frame; 14, outer cylinder; 15, inner cylinder; 16, heat exchange fins; 17, rotating motor; 18, rotating shaft; 19, stirring paddle; 20, support sleeve; 21, support spring; 22, support column; 23, scraper; 24, water inlet pipe; 25, water outlet pipe; 26, feed pipe; 27, discharge pipe; 28, exhaust pipe; 29, nitrogen generator. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. However, it will be apparent to those skilled in the art that the present utility model may be practiced without one or more of these details. In other instances, some well-known technical features are not described in order to avoid obscuring the present utility model.

[0027] Unless otherwise defined, the directions such as up, down, left, right, front, back, inner and outer involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the figures shown in the present utility model, and are hereby explained together.

[0028] Please refer to Figures 1-6 , the present utility model provides a continuous flash evaporation device for the production of C5 resin, including a support base 1 and a support plate 4 arranged above the support base 1. Two connecting frames 2 are symmetrically welded on one outer wall of the support base 1. A connecting block 3 fixedly connected to the support plate 4 is rotatably connected in the connecting frame 2 through a rotating shaft. A support pad 5 is fixedly installed on the surface of the support base 1 by bolts. The support pad 5 is movably connected to the support plate 4, and the support pad 5 can ensure the stability of the support plate 4;

[0029] A positive and negative motor 6 is installed on one outer wall of the support base 1 by bolts. The output end of the positive and negative motor 6 is fixedly connected with a guiding screw rod 7 through a coupling. A guiding block 8 is threadedly connected to the outer wall of the guiding screw rod 7. A guiding groove for the movement of the guiding block 8 is formed on the surface of the support base 1. And a push-pull rod 9 is arranged above the guiding block 8. Both ends of the push-pull rod 9 are rotatably connected with connecting seats fixedly connected to the support plate 4 and the guiding block 8. A limiting hole is formed in the guiding block 8. A limiting post 10 fixedly connected to the inner wall of the support base 1 is movably connected in the limiting hole of the guiding block 8. The limiting post 10 can limit the movement path of the guiding block 8 and ensure the horizontal movement of the guiding block 8 in the support base 1 when the guiding screw rod 7 rotates;

[0030] A fixing plate one 11 and a fixing plate two 12 are respectively welded on the surface of the support plate 4. An outer cylinder 14 for the flash evaporation of C5 resin is fixed between the fixing plate one 11 and the fixing plate two 12. A support frame 13 for supporting the outer cylinder 14 is welded on the surface of the support plate 4. An inner cylinder 15 is welded in the outer cylinder 14. A plurality of heat exchange fins 16 are fixedly installed on the outer wall of the inner cylinder 15. A rotating motor 17 is installed on one outer wall of the fixing plate one 11 by bolts. The output end of the rotating motor 17 is fixedly connected with a rotating shaft 18 through a coupling. A plurality of stirring paddles 19 are welded on both outer walls of the rotating shaft 18;

[0031] Support sleeves 20 are welded to the outer walls on both sides of the rotating shaft 18. A support spring 21 is provided inside the support sleeve 20. A support column 22 that is movably connected to the support sleeve 20 is provided on one side of the support spring 21. A scraper 23 is fixed by bolts to the end face of the support column 22 located outside the support sleeve 20. The scraper 23 is in contact with the inner wall of the inner cylinder 15. Limit sliders are fixed to the outer walls on both sides of the support column 22. Limit sliding grooves for the limit sliders to slide are formed in the inner walls on both sides of the support sleeve 20. The limit sliders can restrict the movement path of the support column 22 to prevent the support column 22 from rotating inside the support sleeve 20. By driving the rotation of the rotating shaft 18 with the rotating motor 17, the stirring paddle 19 and the support sleeve 20 can be driven to rotate. The stirring paddle 19 can stir the raw materials to improve the flash evaporation efficiency. At the same time, when the support sleeve 20 rotates, the scraper 23 can be driven to rotate, so as to automatically clean the inner wall of the inner cylinder 15 and ensure the cleanliness of the inner cylinder 15. By supporting the support column 22 with the support spring 21, the scraper 23 can always be in contact with the inner wall of the inner cylinder 15 to ensure the cleaning effect of the scraper 23;

[0032] Water inlet holes and water outlet holes are respectively formed at the top of the outer cylinder 14. A water inlet pipe 24 and a water outlet pipe 25 are respectively fixed in the water inlet hole and the water outlet hole at the top of the outer cylinder 14. Control valves are installed on both the water inlet pipe 24 and the water outlet pipe 25. A hot fluid is injected between the outer cylinder 14 and the inner cylinder 15 through the water inlet pipe 24. The hot fluid exchanges heat with the inner cylinder 15 through the heat exchange fins 16, thereby accelerating the heat exchange speed of the flash evaporation device. The heat-exchanged hot fluid can be discharged through the water outlet pipe 25. The water inlet pipe 24 and the water outlet pipe 25 form a flowing channel. By the flow of the hot fluid, the heat exchange speed between the hot solution and the heat exchange fins 16 is increased, and heat loss is reduced. By continuously adding the hot fluid into the outer cylinder 14, continuous flash evaporation operation can be carried out to prevent the temperature in the inner cylinder 15 from decreasing and affecting the flash evaporation efficiency;

[0033] At the top of the outer cylinder 14, a feed pipe 26 extending into the inner cylinder 15 is fixed. A protective cover is installed on the feed pipe 26. At the bottom of the outer cylinder 14, a discharge pipe 27 extending into the inner cylinder 15 is fixed. And on one side outer wall of the outer cylinder 14, an exhaust pipe 28 extending into the inner cylinder 15 is fixed. Control valves are also installed on the discharge pipe 27 and the exhaust pipe 28. On one side outer wall of the second fixing plate 12, a nitrogen generator 29 is installed by bolts. And the air outlet pipe of the nitrogen generator 29 extends into the inner cylinder 15. A check valve is installed in the air outlet pipe of the nitrogen generator 29 to prevent the material in the inner cylinder 15 from entering the air outlet pipe of the nitrogen generator 29. After the nitrogen generator 29 fills nitrogen into the inner cylinder 15, the gas-liquid two-phase balance of the original system is broken, the partial pressure of the solvent is reduced, the precipitation amount of the solvent in the liquid phase increases, and the recovery rate of the solvent is improved. At the same time, some oligomers will also precipitate, and the volatile content of the resin product will be reduced. At the same time, the increased pressure enables this evaporation device to appropriately reduce the evaporation temperature and reduce the energy consumption input. By driving the guide screw 7 to rotate through the forward and reverse motor 6, the guide block 8 is driven to move. Cooperating with the push-pull rod 9, one end of the support plate 4 is lifted, so that the support plate 4 rotates along the position of the connecting block 3, making the outer cylinder 14 and the inner cylinder 15 inclined. After the resin production is completed, it can be quickly discharged from the discharge pipe 27 to avoid the situation of resin residue.

[0034] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Plus, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The control mode of the present utility model is controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0035] In the description of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0036] Working principle:

[0037] When the continuous flash evaporation device for C5 resin production is in use, raw materials for resin production are injected into the inner cylinder 15 through the feed pipe 26. Then, the protective cover on the feed pipe 26 is closed, and hot fluid is injected between the outer cylinder 14 and the inner cylinder 15 through the water inlet pipe 24. The hot fluid exchanges heat with the inner cylinder 15 through the heat exchange fins 16, thereby accelerating the heat exchange speed of the flash evaporation device. The heated fluid after heat exchange can be discharged through the water outlet pipe 25. The water inlet pipe 24 and the water outlet pipe 25 form a flowing channel. Through the flow of the hot fluid, the heat exchange speed between the hot solution and the heat exchange fins 16 is increased, and heat loss is reduced. Continuously adding hot fluid to the outer cylinder 14 for continuous flash evaporation operation can prevent the temperature in the inner cylinder 15 from decreasing and affecting the flash evaporation efficiency.

[0038] Then, start the rotating motor 17 and the nitrogen generator 29. The nitrogen generator 29 injects nitrogen into the inner cylinder 15, increasing the pressure inside the inner cylinder 15, breaking the gas-liquid two-phase equilibrium, reducing the solvent partial pressure, increasing the amount of solvent precipitated in the liquid phase, and improving the solvent recovery rate. At the same time, some oligomers will also precipitate, and the volatile content of the resin product will be reduced. At the same time, the increased pressure allows the evaporator to appropriately reduce the evaporation temperature, reducing energy consumption input. The rotating motor 17 drives the rotating shaft 18 to rotate, thereby driving the stirring paddle 19 and the support sleeve 20 to rotate. The stirring paddle 19 stirs the raw materials, making the heat exchange more sufficient and improving the flash evaporation efficiency. At the same time, when the support sleeve 20 rotates, it drives the scraper 23 to rotate, automatically cleaning the inner wall of the inner cylinder 15 and ensuring the cleanliness of the inner cylinder 15.

[0039] After flash evaporation, turn off the nitrogen generator 29, and discharge the excess gas in the inner cylinder 15 through the exhaust pipe 28. Start the forward and reverse motor 6, drive the guide screw 7 to rotate, thereby driving the guide block 8 to move. Cooperating with the push-pull rod 9, lift one end of the support plate 4, making the support plate 4 rotate along the position of the connecting block 3, tilting the outer cylinder 14 and the inner cylinder 15. After the resin production is completed, it can be quickly discharged from the discharge pipe 27. At the same time, when the scraper 23 rotates, it can scrape off the resin remaining on the inner wall of the inner cylinder 15, avoiding the occurrence of resin residue.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous flash evaporation device for the production of C5 resin, comprising a support base (1) and a support plate (4) arranged above the support base (1), characterized in that: On one side outer wall of the support base (1), two connecting frames (2) are symmetrically fixed. A connecting block (3) fixedly connected to the support plate (4) is rotatably connected inside the connecting frame (2). A forward and reverse motor (6) is installed on one side outer wall of the support base (1); On the surface of the support plate (4), a first fixing plate (11) and a second fixing plate (12) are respectively fixed. An outer cylinder (14) for the flash evaporation of C5 resin is fixed between the first fixing plate (11) and the second fixing plate (12). An inner cylinder (15) is fixed inside the outer cylinder (14). A plurality of heat exchange fins (16) are fixed on the outer wall of the inner cylinder (15). A rotary motor (17) is installed on one side outer wall of the first fixing plate (11). The output end of the rotary motor (17) is fixed with a rotary shaft (18). Scrapers (23) are arranged on both sides of the rotary shaft (18). A nitrogen generator (29) is installed on one side outer wall of the second fixing plate (12), and the air outlet pipe of the nitrogen generator (29) extends into the inner cylinder (15).

2. The continuous flash evaporation device for C5 resin production according to claim 1, wherein: The output end of the forward and reverse motor (6) is fixed with a guiding screw rod (7). A guiding block (8) is threadedly connected to the outer wall of the guiding screw rod (7), and a push-pull rod (9) is arranged above the guiding block (8).

3. The continuous flash evaporation device for C5 resin production according to claim 2, characterized in that: A limiting hole is formed in the guiding block (8). A limiting column (10) fixedly connected to the inner wall of the support base (1) is movably connected in the limiting hole of the guiding block (8). Both ends of the push-pull rod (9) are rotatably connected to connecting seats fixedly connected to the support plate (4) and the guiding block (8).

4. The continuous flash evaporation device for producing C5 resin according to claim 1, characterized in that: A plurality of stirring paddles (19) are fixed on both sides outer walls of the rotary shaft (18), and support sleeves (20) are fixed on both sides outer walls of the rotary shaft (18).

5. The continuous flashing device for C5 resin production according to claim 4, characterized in that: A support spring (21) is arranged inside the support sleeve (20). A support column (22) fixedly connected to the scraper (23) is arranged on one side of the support spring (21). Limiting sliders are fixed on both sides outer walls of the support column (22).

6. The continuous flash evaporation device for producing C5 resin according to claim 1, wherein: A water inlet hole and a water outlet hole are respectively formed at the top of the outer cylinder (14), and a water inlet pipe (24) and a water outlet pipe (25) are respectively fixed in the water inlet hole and the water outlet hole at the top of the outer cylinder (14).

7. The continuous flash evaporation device for C5 resin production according to claim 6, characterized in that: A feed pipe (26) extending into the inner cylinder (15) is fixed at the top of the outer cylinder (14). A discharge pipe (27) extending into the inner cylinder (15) is fixed at the bottom of the outer cylinder (14), and an exhaust pipe (28) extending into the inner cylinder (15) is fixed on one side outer wall of the outer cylinder (14).

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