A glue solution devolatilization system

Abstract

This invention discloses a diplastin removal system, comprising a diplastin housing, a water washing mechanism installed at the top of the inner wall of the diplastin housing, a feeding mechanism fixedly installed at the top of one side of the diplastin housing, a processing mechanism fixedly installed inside the diplastin housing, a concentration mechanism located on one side of the diplastin housing, and a reflux pump fixedly installed on one side of the concentration mechanism. This invention employs atmospheric pressure falling film and negative pressure thin film evaporation processes to reduce energy consumption. Compared with the previous water separation and coagulation processes, the emissions of waste gas, wastewater, and solid waste are significantly reduced. By removing solvents from low molecular weight polymers through two-stage falling film and two-stage thin film processes, the final product has a volatile content of <0.5%. A small amount of waste gas is emitted during product packaging, but no wastewater is discharged, achieving the goal of energy conservation and emission reduction. Compared with the traditional water separation and coagulation process, the diplastin removal production process proposed in this invention reduces steam consumption, wastewater discharge, and waste gas emissions, making it an energy-saving and environmentally friendly technology.

Description

Technical Field

[0001] This invention relates to the field of rubber preparation technology, specifically to a rubber solution devolatilization system. Background Technology

[0002] Solution polymerization has been widely used in the production of synthetic rubber. Its advantages include: the solvent can act as a heat transfer medium, making heat transfer easier and thus controlling the reaction temperature more readily; it reduces the risk of gelation and avoids localized overheating; by adjusting polymerization conditions, the molecular weight and molecular weight distribution of the final product can be more easily controlled; and solution polymerization is suitable for applications where polymer solutions are used directly, such as coatings, adhesives, and synthetic fiber spinning solutions. Although solution polymerization has some disadvantages, such as lower monomer concentration leading to slower polymerization rates, lower equipment capacity and utilization, and lower polymer molecular weight, its advantages still make it valuable for industrial production.

[0003] When rubber-based polymer products are used in downstream applications, corresponding additives are added to change their molecular structure or properties. Solid polymer products are difficult to mix evenly after adding additives, which affects the performance of the final product. Low molecular weight polymer products can be in liquid state, which is beneficial for subsequent processing.

[0004] However, traditional synthetic rubber preparation methods have the following drawbacks:

[0005] Traditional rubber volatile matter removal processes mostly involve hot water coagulation. This method involves spraying a mixture of high molecular weight polymer and solvent (referred to as rubber solution) into hot water, using steam to strip and recover the solvent, thus achieving separation. However, there is no relevant separation process for low molecular weight polymer products. Summary of the Invention

[0006] The purpose of this invention is to provide a rubber de-volatiles system to solve the problem that most of the traditional rubber devolatiles removal processes mentioned in the background art are hot water coagulation methods. This method sprays a mixture of high molecular weight polymer and solvent, referred to as rubber solution, into hot water, and uses steam to strip and recover the solvent, thereby achieving the separation of the two. However, there is no relevant separation process for low molecular weight polymer products.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a diplastin devolatilization system, comprising a devolatilization housing, a washing mechanism installed at the top of the inner wall of the devolatilization housing, a feeding mechanism fixedly installed at the top of one side of the devolatilization housing, a processing mechanism fixedly installed inside the devolatilization housing, a concentration mechanism provided on one side of the devolatilization housing, a reflux pump fixedly installed on one side of the concentration mechanism, and a polymerization tank fixedly installed on one side of the top of the devolatilization housing. The processing mechanism includes a primary falling film evaporator, a secondary falling film evaporator, a secondary thin film evaporator, and a tertiary thin film evaporator. A first delivery pump, a second delivery pump, and a third delivery pump are respectively provided on one side of the primary falling film evaporator, one side of the secondary falling film evaporator, and one side of the secondary thin film evaporator. The outlet of the first delivery pump is fixedly connected to a first discharge pipe, the outlet of the second delivery pump is fixedly connected to a second discharge pipe, and the outlet of the third delivery pump is fixedly connected to a third discharge pipe. The first discharge pipe, at one end away from the first conveying pump, is fixedly connected to the inlet of the secondary falling film evaporator. The second discharge pipe, at one end away from the second conveying pump, is fixedly connected to the inlet of the secondary thin film evaporator. The third discharge pipe, at one end away from the third conveying pump, is fixedly connected to the inlet of the tertiary thin film evaporator. The washing mechanism includes a lead screw and a washing platform. The middle part of the lead screw is threaded with a displacement block that is slidably connected to the devolatilizer housing. The bottom end of the displacement block is fixedly connected to the top end of the washing platform. The bottom end of the washing platform is fixedly connected to several washing nozzles. The top end of the lead screw is equipped with a pump body. The inlet of the pump body is fixedly connected to a material intake pipe extending into the polymerization tank. The outlet of the pump body is fixedly connected to a conveying hose extending into the inner wall of the washing platform. The bottom end of the pump body is fixedly connected to the devolatilizer housing. After the pump body is powered on, it starts and draws the product from the polymerization tank through the material intake pipe. The drawn product is conveyed to the washing platform through the conveying hose.

[0008] As a preferred embodiment of the present invention, both ends of the lead screw are rotatably connected to the side of the devolatilization housing facing the lead screw. A servo motor for driving the lead screw to rotate is fixedly installed on the side of the devolatilization housing away from the feeding mechanism. After the servo motor is powered on, it starts and drives the lead screw to rotate. The thread on the surface of the lead screw matches the thread on the inner wall of the displacement block. The displacement block is limited by the devolatilization housing, which matches its shape and size. Therefore, the displacement block slides along the lead screw to adjust the washing position of the washing table.

[0009] As a preferred embodiment of the present invention, the inlet of the first conveying pump is fixedly connected to a first feed pipe, the inlet of the second conveying pump is fixedly connected to a second feed pipe, and the inlet of the third conveying pump is fixedly connected to a third feed pipe. The end of the first feed pipe away from the first conveying pump is fixedly connected to the outlet of the first-stage falling film evaporator, the end of the second feed pipe away from the second conveying pump is fixedly connected to the outlet of the second-stage falling film evaporator, and the end of the third feed pipe away from the third conveying pump is fixedly connected to the outlet of the second-stage thin-film evaporator. After the first conveying pump is powered on, it starts and draws the product from the first-stage falling film evaporator through the first feed pipe. The drawn product is then transported to the second-stage falling film evaporator through the first discharge pipe. After the second conveying pump is powered on, it starts and draws the product from the second-stage falling film evaporator through the second feed pipe. The drawn product is then transported to the second-stage thin-film evaporator through the second discharge pipe. After the third conveying pump is powered on, it starts and draws the product from the second-stage thin-film evaporator through the third feed pipe. The drawn product is then transported to the third-stage thin-film evaporator through the third discharge pipe.

[0010] As a preferred embodiment of the present invention, the concentration mechanism includes a concentration shell and a filter plate. Movable grooves are formed at the top of both sides of the inner wall of the concentration shell. Movable blocks are slidably connected inside each of the two movable grooves. The opposite ends of the two movable blocks are fixedly connected to the two ends of the filter plate. Several heating grids are fixedly installed inside the concentration shell. An exhaust pipe is fixedly connected to one side of the top of the concentration shell. A stirring paddle is rotatably connected to one side of the inner wall of the concentration shell. A concentration sensor extending into the concentration shell is fixedly installed on one side of the concentration shell. Support springs are fixedly installed at the bottom of each of the two movable blocks. The bottom ends of the two support springs are fixedly connected to the opposite sides of the two movable grooves. The other side of the concentration shell is fixedly connected to one side of a reflux pump. The product transported through the connecting pipe is filtered by the filter plate and then heated and concentrated by the heating grids. The concentration sensor senses the product concentration.

[0011] As a preferred embodiment of the present invention, the inlet of the reflux pump is fixedly connected to an extraction pipe extending to the inside of the concentration tank, and the outlet of the reflux pump is fixedly connected to a reflux hose extending to the inside of the polymerization tank. After the reflux pump is powered on, it starts to extract the product from the concentration tank through the extraction pipe, and the extracted product is transported to the polymerization tank through the reflux hose.

[0012] As a preferred embodiment of the present invention, the inlet of the first-stage falling film evaporator is fixedly connected to a feed hopper, the bottom end of the third-stage thin-film evaporator is fixedly connected to a filling pipe extending to the outside, and the four corners of the bottom end of the devolatilizer shell are fixedly installed with support legs. The two ends of the first-stage falling film evaporator, the two ends of the second-stage falling film evaporator, the two ends of the second-stage thin-film evaporator, and the two ends of the third-stage thin-film evaporator are all fixedly connected to the side facing the devolatilizer shell. After washing, the product is injected into the first-stage falling film evaporator, and the product to be filled is discharged through the third-stage thin-film evaporator and flows out through the filling pipe for finished product filling.

[0013] As a preferred embodiment of the present invention, the surfaces of the first-stage falling film evaporator, the second-stage falling film evaporator, the second-stage thin-film evaporator, and the third-stage thin-film evaporator are all fixedly connected to connecting pipes extending to the outside. One end of each of the four connecting pipes extending to the outside is fixedly connected to the side opposite the concentration mechanism. The solvent in the first-stage falling film evaporator, the solvent in the second-stage falling film evaporator, the solvent in the second-stage thin-film evaporator, and the solvent in the third-stage thin-film evaporator are injected into the concentration mechanism through the connecting pipes.

[0014] As a preferred embodiment of the present invention, the feeding mechanism includes a feeding platform and a feeding shell. The top end of the feeding platform is fixedly connected to the bottom end of the feeding shell. A conveying screw is rotatably connected to one side of the inner wall of the feeding shell. A stepper motor for driving the conveying screw to rotate is fixedly connected to one side of the feeding shell. An installation pipe is fixedly connected to the other side of the feeding shell. The end of the installation pipe away from the feeding shell is fixedly connected to the side of the devolatilization chamber facing it. An injection pipe is fixedly connected to the top end of the feeding shell. One end of the feeding platform is fixedly connected to the devolatilization chamber. The product is injected into the feeding shell through the injection pipe. After the stepper motor is powered on, it starts and drives the conveying screw to rotate. The conveying screw conveys the product and then injects the product into the devolatilization chamber through the installation pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. A method for removing volatiles from low molecular weight polymers is provided, which solves the problems of high energy consumption and large emissions of waste gas, wastewater, and solid waste in traditional rubber volatiles removal, and also solves the problem of mixing additives in post-processing.

[0017] 2. The use of atmospheric pressure falling film and negative pressure thin film evaporation processes reduces energy consumption and significantly reduces the discharge of waste gas, wastewater, and solid waste compared to the previous water separation and coagulation process.

[0018] 3. Solvents in low molecular weight polymers are removed through two-stage falling film and two-stage thin film processes, resulting in a final product with a volatile content of <0.5%. There is a small amount of waste gas emission during the product packaging process, but no wastewater discharge, thus achieving the goal of energy conservation and emission reduction.

[0019] 4. Compared with the traditional water separation condensation process, the devolatilization production process proposed in this invention reduces steam consumption, wastewater discharge, and exhaust gas emissions, making it an energy-saving and environmentally friendly technology. Attached Figure Description

[0020] Figure 1 This is a partial schematic diagram of the present invention;

[0021] Figure 2 This is a side view of the present invention;

[0022] Figure 3 This is a cross-sectional view of the present invention;

[0023] Figure 4 This is a connection diagram of the concentration mechanism and the reflux pump of the present invention;

[0024] Figure 5 This is a connection diagram of the washing mechanism and the polymerization tank of the present invention;

[0025] Figure 6 This is a side view of the processing mechanism of the present invention;

[0026] Figure 7 This is a cross-sectional view of the feeding mechanism of the present invention;

[0027] Figure 8 This is a process flow diagram of the present invention.

[0028] In the diagram: 1. Deviation chamber; 2. Processing mechanism; 201. First-stage falling film evaporator; 202. Second-stage falling film evaporator; 203. Second-stage thin-film evaporator; 204. Third-stage thin-film evaporator; 205. Third transfer pump; 206. Second transfer pump; 207. First transfer pump; 208. First feed pipe; 209. First discharge pipe; 210. Second feed pipe; 211. Second discharge pipe; 212. Third feed pipe; 213. Third discharge pipe; 3. Feeding mechanism; 31. Feeding platform; 32. Installation pipe; 33. Conveying screw; 34. Feeding shell; 35. 1. Injection pipe; 36. Stepper motor; 4. Washing mechanism; 41. Servo motor; 42. Lead screw; 43. Washing nozzle; 44. Washing table; 45. Conveying hose; 46. Pump body; 47. Material intake pipe; 48. Displacement block; 5. Aggregation tank; 6. Return hose; 7. Return pump; 8. Concentration mechanism; 81. Concentration shell; 82. Heating grid; 83. Concentration sensor; 84. Movable tank; 85. Movable block; 86. Stirring paddle; 87. Exhaust pipe; 88. Filter plate; 89. Support spring; 9. Connecting pipe; 10. Support leg; 11. Filling pipe; 12. Feed hopper. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-8This invention provides a diplastin devolatilization system, comprising a devolatilization housing 1, a washing mechanism 4 installed at the top of the inner wall of the devolatilization housing 1, a feeding mechanism 3 fixedly installed at the top of one side of the devolatilization housing 1, a processing mechanism 2 fixedly installed inside the devolatilization housing 1, a concentration mechanism 8 provided on one side of the devolatilization housing 1, a reflux pump 7 fixedly installed on one side of the concentration mechanism 8, and a polymerization tank 5 fixedly installed on one side of the top of the devolatilization housing 1. The processing mechanism 2 includes a primary falling film evaporator 201, a secondary falling film evaporator 202, a secondary thin film evaporator 203, and a tertiary thin film evaporator 204. A first transfer pump 207 and a second transfer pump 208 are respectively provided on one side of the primary falling film evaporator 201, one side of the secondary falling film evaporator 202, and one side of the secondary thin film evaporator 203. The first pump 207 has a fixed connection to the outlet of the first pump 207 via a first discharge pipe 209. The second pump 206 has a fixed connection to the outlet of the second discharge pipe 211 via a second discharge pipe 211 via a second discharge pipe 213 via a third ... A sliding displacement block 48 is connected to the bottom of a washing platform 44. Several washing nozzles 43 are fixedly connected to the bottom of the washing platform 44. A pump body 46 is installed at the top of a lead screw 42. The inlet of the pump body 46 is fixedly connected to a material intake pipe 47 extending into the polymerization tank 5. The outlet of the pump body 46 is fixedly connected to a conveying hose 45 extending into the inner wall of the washing platform 44. The bottom of the pump body 46 is fixedly connected to the devolatilizer housing 1. The pump body 46 starts when powered on and draws product from the polymerization tank 5 through the material intake pipe 47. The drawn product is conveyed to the washing platform 44 through the conveying hose 45. Both ends of the lead screw 42 are rotatably connected to the side of the devolatilizer housing 1 facing the feed mechanism 3. A fixed part is installed on the side of the devolatilizer housing 1 away from the feeding mechanism 3. A servo motor 41 drives the lead screw 42 to rotate. When servo motor 41 is powered on, it starts and drives the lead screw 42 to rotate. The threads on the surface of the lead screw 42 match the threads on the inner wall of the displacement block 48. The displacement block 48 is limited by the evaporator housing 1, which matches its shape and size. Therefore, the displacement block 48 slides along the lead screw 42, adjusting the washing position of the washing table 44. The inlet of the first conveying pump 207 is fixedly connected to the first feed pipe 208. The inlet of the second conveying pump 206 is fixedly connected to the second feed pipe 210. The inlet of the third conveying pump 205 is fixedly connected to the third feed pipe 212. The end of the first feed pipe 208 away from the first conveying pump 207 is fixedly connected to the outlet of the first-stage falling film evaporator 201.The end of the second feed pipe 210 furthest from the second feed pump 206 is fixedly connected to the outlet of the secondary falling film evaporator 202. The end of the third feed pipe 212 furthest from the third feed pump 205 is fixedly connected to the outlet of the secondary thin film evaporator 203. The first feed pump 207 starts after being energized, and draws product from the primary falling film evaporator 201 through the first feed pipe 208. The drawn product is transported to the secondary falling film evaporator 202 through the first discharge pipe 209. The second feed pump 206 starts after being energized, and draws product from the secondary falling film evaporator 202 through the second feed pipe 210. The drawn product is transported to the secondary thin film evaporator 203 through the second discharge pipe 211. The third feed pump 205 starts after being energized, and draws product from the secondary thin film evaporator 203 through the third feed pipe 212. The drawn product is transported to the tertiary thin film evaporator 204 through the third discharge pipe 213.

[0031] The concentration mechanism 8 includes a concentration shell 81 and a filter plate 88. Movable grooves 84 are provided at the top of both sides of the inner wall of the concentration shell 81. Movable blocks 85 are slidably connected inside each of the two movable grooves 84. The opposite ends of the two movable blocks 85 are fixedly connected to the two ends of the filter plate 88. Several heating grids 82 are fixedly installed inside the concentration shell 81. An exhaust pipe 87 is fixedly connected to one side of the top of the concentration shell 81. A stirring paddle 86 is rotatably connected to one side of the inner wall of the concentration shell 81. A concentration sensor 83 extending into the concentration shell 81 is fixedly installed on one side. Support springs 89 are fixedly installed at the bottom of each of the two movable blocks 85. The bottom ends of the two support springs 89 are fixedly connected to the opposite side of each of the two movable grooves 84. The other side of the concentration shell 81 is fixedly connected to one side of the reflux pump 7. The product transported by the connecting pipe 9 is filtered by the filter plate 88 and then heated and concentrated by the heating grids 82. The concentration sensor 83 senses the product concentration.

[0032] The inlet of the reflux pump 7 is fixedly connected to an extraction pipe extending to the inside of the concentration shell 81, and the outlet of the reflux pump 7 is fixedly connected to a reflux hose 6 extending to the inside of the polymerization tank 5. After the reflux pump 7 is powered on, it starts and extracts the product from the concentration shell 81 through the extraction pipe. The extracted product is then transported to the polymerization tank 5 through the reflux hose 6.

[0033] The inlet of the first-stage falling film evaporator 201 is fixedly connected to the feed hopper 12, and the bottom of the third-stage thin film evaporator 204 is fixedly connected to the filling pipe 11 extending to the outside. Support legs 10 are fixedly installed at the four corners of the bottom of the devolatilizer shell 1. The two ends of the first-stage falling film evaporator 201, the two ends of the second-stage falling film evaporator 202, the two ends of the second-stage thin film evaporator 203, and the two ends of the third-stage thin film evaporator 204 are all fixedly connected to the side of the devolatilizer shell 1 facing the devolatilizer shell 1. After washing, the product is injected into the first-stage falling film evaporator 201. Finally, the product to be filled is discharged through the third-stage thin film evaporator 204 and flows out through the filling pipe 11 for finished product filling.

[0034] The surfaces of the first-stage falling film evaporator 201, the second-stage falling film evaporator 202, the second-stage thin film evaporator 203, and the third-stage thin film evaporator 204 are all fixedly connected to connecting pipes 9 extending to the outside. The ends of the four connecting pipes 9 extending to the outside are all fixedly connected to the side of the concentration mechanism 8 directly opposite to it. The solvent in the first-stage falling film evaporator 201, the second-stage falling film evaporator 202, the second-stage thin film evaporator 203, and the third-stage thin film evaporator 204 are injected into the concentration mechanism 8 through the connecting pipes 9.

[0035] The feeding mechanism 3 includes a feeding platform 31 and a feeding shell 34. The top end of the feeding platform 31 is fixedly connected to the bottom end of the feeding shell 34. A conveying screw 33 is rotatably connected to one side of the inner wall of the feeding shell 34. A stepper motor 36 that drives the conveying screw 33 to rotate is fixedly connected to one side of the feeding shell 34. An installation pipe 32 is fixedly connected to the other side of the feeding shell 34. The end of the installation pipe 32 away from the feeding shell 34 is fixedly connected to the side of the devolatilizer housing 1 facing the feeding shell 1. An injection pipe 35 is fixedly connected to the top end of the feeding shell 34. One end of the feeding platform 31 is fixedly connected to the devolatilizer housing 1. The product is injected into the feeding shell 34 through the injection pipe 35. After the stepper motor 36 is powered on, it starts and drives the conveying screw 33 to rotate. The conveying screw 33 conveys the product and then injects the product into the devolatilizer housing 1 through the installation pipe 32.

[0036] In this invention, the product is injected into the feed housing 34 through the injection pipe 35. The stepper motor 36 is started after being powered on, driving the conveying screw 33 to rotate. The conveying screw 33 conveys the product, which is then injected into the devolatilizer housing 1 through the installation pipe 32. The pump body 46 is started after being powered on, drawing the product from the polymerization tank 5 through the material extraction pipe 47. The extracted product is then transported to the washing table 44 through the conveying hose 45. The servo motor 41 is started after being powered on, driving the lead screw 42 to rotate. The threads on the surface of the lead screw 42 interact with the displacement block 48. The threads on the inner walls are matched, and the displacement block 48 is limited by the devolatilization housing 1, which matches its shape and size. Therefore, the displacement block 48 slides along the lead screw 42, adjusting the washing position of the washing table 44. After washing, the product is injected into the first-stage falling film evaporator 201. The first delivery pump 207 is started after being powered on. The first delivery pump 207 draws the product from the first-stage falling film evaporator 201 through the first feed pipe 208. The drawn product is transported to the second-stage falling film evaporator 202 through the first discharge pipe 209. The second delivery pump 206 is started after being powered on. Pump 206 draws product from the secondary falling film evaporator 202 through the second feed pipe 210. The drawn product is then transported to the secondary thin film evaporator 203 through the second discharge pipe 211. The third delivery pump 205 starts after being powered on and draws product from the secondary thin film evaporator 203 through the third feed pipe 212. The drawn product is then transported to the tertiary thin film evaporator 204 through the third discharge pipe 213. Finally, the product to be filled is discharged from the tertiary thin film evaporator 204 and flows out through the filling pipe 11 for finished product filling. (Two-stage process) Falling film evaporation: The 10% concentration adhesive solution is preheated to 75°C and then enters the first-stage falling film evaporator 201 to remove some solvent, resulting in an adhesive concentration of approximately 50%. It is then pumped to the second-stage falling film evaporator 202 to remove some solvent, resulting in an adhesive concentration of approximately 85%. Both stages of falling film evaporation are operated under slightly positive pressure. Two-stage thin film evaporation: The adhesive solution is pumped to the second-stage thin film evaporator 203 to remove some solvent, resulting in an adhesive concentration of approximately 95%. It is then pumped to the third-stage thin film evaporator 204 to remove some solvent, yielding the product, which is in liquid state with a volatile content of <0.5%. Both stages of thin film evaporation are operated under negative pressure.

[0037] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A glue devolatilization system, comprising a devolatilization housing (1), characterized in that: A water washing mechanism (4) is installed at the top of the inner wall of the devolatilization shell (1). A feeding mechanism (3) is fixedly installed at the top of one side of the devolatilization shell (1). A processing mechanism (2) is fixedly installed inside the devolatilization shell (1). A concentration mechanism (8) is provided on one side of the devolatilization shell (1). A reflux pump (7) is fixedly installed on one side of the concentration mechanism (8). A polymerization tank (5) is fixedly installed on one side of the top of the devolatilization shell (1). The processing mechanism (2) includes a first-stage falling film evaporator (201), a second-stage falling film evaporator (202), a second-stage thin film evaporator (203), and a third-stage thin film evaporator (204). A water washing mechanism (4) is installed on one side of the first-stage falling film evaporator (201), a second-stage falling film evaporator (202), a third-stage thin film evaporator (203), and a fourth-stage thin film evaporator (204). A first delivery pump (207), a second delivery pump (206), and a third delivery pump (205) are respectively provided on one side of the evaporator (202) and on one side of the secondary thin-film evaporator (203). The liquid outlet of the first delivery pump (207) is fixedly connected to a first discharge pipe (209). The liquid outlet of the second delivery pump (206) is fixedly connected to a second discharge pipe (211). The liquid outlet of the third delivery pump (205) is fixedly connected to a third discharge pipe (213). The end of the first discharge pipe (209) away from the first delivery pump (207) is fixedly connected to the inlet of the secondary falling film evaporator (202). The end of the second discharge pipe (211) away from the second delivery pump (206) is fixedly connected to the inlet of the secondary thin-film evaporator (202). The inlet of the generator (203) is fixedly connected, and the end of the third discharge pipe (213) away from the third delivery pump (205) is fixedly connected to the inlet of the three-stage thin film evaporator (204). The water washing mechanism (4) includes a lead screw (42) and a water washing platform (44). The middle part of the lead screw (42) is threaded with a displacement block (48) that is slidably connected to the devolatilizer housing (1). The bottom end of the displacement block (48) is fixedly connected to the top end of the water washing platform (44). The bottom end of the water washing platform (44) is fixedly connected to several water washing nozzles (43). The top end of the lead screw (42) is provided with a pump body (46). The inlet of the pump body (46) is fixedly connected to a material intake pipe (47) extending into the polymerization tank (5). The pump body (46) has a fixed connection at its outlet to a conveying hose (45) extending to the inner wall of the washing table (44). The bottom end of the pump body (46) is fixedly connected to the devolatilizer housing (1). Both ends of the lead screw (42) are rotatably connected to the side of the devolatilizer housing (1) facing away from it. A servo motor (41) for driving the lead screw (42) is fixedly installed on the side of the devolatilizer housing (1) away from the feeding mechanism (3). The inlet of the first conveying pump (207) is fixedly connected to a first feeding pipe (208). The inlet of the second conveying pump (206) is fixedly connected to a second feeding pipe (210). The inlet of the third conveying pump (205) is fixedly connected to a third feeding pipe (212).The end of the first feed pipe (208) furthest from the first delivery pump (207) is fixedly connected to the outlet of the first-stage falling film evaporator (201); the end of the second feed pipe (210) furthest from the second delivery pump (206) is fixedly connected to the outlet of the second-stage falling film evaporator (202); and the end of the third feed pipe (212) furthest from the third delivery pump (205) is fixedly connected to the outlet of the second-stage thin-film evaporator (203).

2. The adhesive devolatilization system according to claim 1, characterized in that: The concentration mechanism (8) includes a concentration shell (81) and a filter plate (88). Movable grooves (84) are provided at the top of both sides of the inner wall of the concentration shell (81). Movable blocks (85) are slidably connected inside the two movable grooves (84). The opposite ends of the two movable blocks (85) are fixedly connected to the two ends of the filter plate (88). Several heating nets (82) are fixedly installed inside the concentration shell (81). An exhaust pipe (87) is fixedly connected to one side of the top of the concentration shell (81). A stirring paddle (86) is rotatably connected to one side of the inner wall of the concentration shell (81). A concentration sensor (83) extending into the concentration shell (81) is fixedly installed on one side of the concentration shell (81). Support springs (89) are fixedly installed at the bottom of the two movable blocks (85). The bottom ends of the two support springs (89) are fixedly connected to the opposite side of the two movable grooves (84). The other side of the concentration shell (81) is fixedly connected to one side of the reflux pump (7).

3. The adhesive devolatilization system according to claim 2, characterized in that: The inlet of the reflux pump (7) is fixedly connected to an extraction pipe extending to the inside of the concentration tank (81), and the outlet of the reflux pump (7) is fixedly connected to a reflux hose (6) extending to the inside of the polymerization tank (5).

4. The adhesive devolatilization system according to claim 1, characterized in that: The inlet of the first-stage falling film evaporator (201) is fixedly connected to a feed hopper (12), and the bottom end of the third-stage thin film evaporator (204) is fixedly connected to a filling pipe (11) extending to the outside. Support legs (10) are fixedly installed at the four corners of the bottom end of the devolatilizer casing (1). The two ends of the first-stage falling film evaporator (201), the two ends of the second-stage falling film evaporator (202), the two ends of the second-stage thin film evaporator (203), and the two ends of the third-stage thin film evaporator (204) are all fixedly connected to the side of the devolatilizer casing (1) directly opposite to it.

5. The adhesive devolatilization system according to claim 1, characterized in that: The surfaces of the first-stage falling film evaporator (201), the second-stage falling film evaporator (202), the second-stage thin film evaporator (203), and the third-stage thin film evaporator (204) are all fixedly connected to connecting pipes (9) extending to the outside. The ends of the four connecting pipes (9) extending to the outside are all fixedly connected to the side of the concentration mechanism (8) facing each other.

6. The adhesive devolatilization system according to claim 1, characterized in that: The feeding mechanism (3) includes a feeding platform (31) and a feeding shell (34). The top end of the feeding platform (31) is fixedly connected to the bottom end of the feeding shell (34). A conveying screw (33) is rotatably connected to one side of the inner wall of the feeding shell (34). A stepper motor (36) for driving the conveying screw (33) to rotate is fixedly connected to one side of the feeding shell (34). An installation pipe (32) is fixedly connected to the other side of the feeding shell (34). The end of the installation pipe (32) away from the feeding shell (34) is fixedly connected to the side of the devolatilizer shell (1) facing it. An injection pipe (35) is fixedly connected to the top end of the feeding shell (34). One end of the feeding platform (31) is fixedly connected to the devolatilizer shell (1).

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