Polymerization reaction kettle

Abstract

The invention relates to the technical field of reaction kettles, and discloses a polymerization reaction kettle which comprises a reaction kettle body, a driver, a conical part and a stirring assembly, the interior of the reaction kettle body is divided into a premixing cavity and a stirring cavity through a material passing hopper, a plurality of material pipes inserted into the premixing cavity are mounted on the reaction kettle body, and the conical part is arranged in the premixing cavity, slidably sleeves the plurality of material pipes, is driven by the driver to move up and down, and can flap materials falling in the material pipes and scrape the peripheries of the materials; the stirring assembly is mounted in the reaction kettle body. Dispersing and premixing of materials are achieved through vertical movement of the conical part, residual materials on the material pipe can be scraped, waste is reduced, the materials rapidly fall down and are mixed through the stirring assembly at the position of the material passing hopper, the materials are dispersed through the conical cyclone part, the stirring effect is enhanced, and after stirring is conducted for a certain period of time, the stirring efficiency is improved. The catalyst is introduced into the conical part to be premixed with the raw materials and auxiliary materials, so that the polymerization reaction is more uniform.

Description

Technical Field

[0001] This invention relates to the field of reactor technology, and more particularly to a polymerization reactor. Background Technology

[0002] Polymerization reactors are mainly used in the synthesis of polymer materials. The main function of a polymerization reactor is to provide a closed and controllable environment for the polymerization reaction, ensuring that the reaction proceeds smoothly under specific temperature, pressure, and stirring conditions. By controlling the reaction conditions, polymerization reactors can improve reaction efficiency, ensure product quality, and reduce the occurrence of side reactions. During the polymerization reaction, raw materials (such as monomers), auxiliary materials (such as comonomers), and catalysts need to be guided into the reactor through multiple material pipes installed on the reactor and extending into it. These materials are mixed in the reactor by a stirring device to form a polymer. In practical applications, polymerization reactors can be used for the polymerization reactions of polyethylene, polypropylene, and polyamide, etc.

[0003] Existing polymerization reactors typically have multiple material pipes installed to simultaneously introduce raw materials, auxiliary materials, and catalysts into the reactor. These material pipes are generally distributed circumferentially along the stirring shaft inside the reactor and are relatively concentrated. Due to this layout, the material initially concentrates in a small area around the stirring shaft, resulting in uneven material distribution and affecting the stirring effect. In addition, during the stirring process, some material easily adheres to the material pipes. Long-term accumulation of this material not only leads to raw material waste but may also affect the normal operation of the material pipes. However, existing polymerization reactors lack a structure for cleaning residual material from the material pipes, causing the problem of raw material waste.

[0004] To address the aforementioned problems, this application proposes a polymerization reactor. Summary of the Invention

[0005] This invention proposes a polymerization reactor that solves the problems of existing polymerization reactors in related technologies, where the material pipes are concentrated around the stirring shaft, resulting in uneven material distribution, poor stirring effect, and easy adhesion of residual material to the material pipes, causing raw material waste and affecting normal operation, but lacking a cleaning structure.

[0006] The present invention provides a polymerization reactor, comprising a reactor body, a driver, a conical component, and a stirring assembly;

[0007] The reactor body is divided into a premixing chamber and a stirring chamber by a hopper. Multiple material pipes are installed on the reactor body and inserted into the premixing chamber. A conical piece is placed in the premixing chamber and slidably sleeved on the multiple material pipes. Driven by a driver, it moves up and down and can beat and scrape the material falling into the material pipes on its outer circumference.

[0008] The stirring assembly is installed inside the reactor body and is used to drive the material in the conical part to fall through the hopper into the stirring chamber for stirring. When rotating and stirring, it can scrape the material on the inner wall of the reactor body.

[0009] The agitation assembly is equipped with a conical vortex component located below the hopper. When the agitation assembly rotates, it drives the conical vortex component to rotate as well, causing the material falling from the hopper to disperse from the center to the surroundings, and causing the material at the bottom of the mixing chamber to be lifted into it and thrown out to the surroundings.

[0010] The back of the reactor body is equipped with a guide device that conveys the material at the bottom of the stirring chamber to the feed hopper.

[0011] As a further optimization of the present invention, the conical component includes a conical cylinder, which is placed in the premixing chamber and slidably sleeved on multiple material pipes. The driver is installed on the top of the reactor body, and the conical cylinder is connected to the driver and driven to move up and down. A discharge port is opened at the bottom of the conical cylinder, and a jacketed cavity is opened on the inner wall of the conical cylinder. Multiple spaced partition blocks are installed in the jacketed cavity, and steel balls are filled between adjacent partition blocks.

[0012] As a further optimization of the present invention, the stirring assembly includes a shaft tube, a guide port is provided at the bottom of the hopper, the shaft tube is vertically arranged in the reactor body and passes through the conical cylinder and the hopper in sequence, multiple material tubes are distributed around the shaft tube circumferentially, a driving component for driving the shaft tube to rotate is installed on the reactor body, a forward spiral blade is fixed on the shaft tube between the conical cylinder and the hopper, and the two ends of the forward spiral blade are respectively located in the discharge port at the bottom of the conical cylinder and the guide port at the bottom of the hopper, and a stirring component located in the stirring chamber is installed on the shaft tube.

[0013] As a further optimization of the present invention, the stirring component includes stirring rods. Two inclined stirring rods are symmetrically installed at the bottom end of the shaft tube and located in the stirring chamber. A scraper block that fits against the inner wall of the reactor is installed at the end of the stirring rod away from the shaft tube. Multiple auxiliary rods that face the scraper block are installed on the inner side of the stirring rod.

[0014] As a further optimization of the present invention, the driving component includes a driving motor, a rotating rod, and a driving gear. A loading frame is installed on the top of the reactor body. The top end of the shaft tube rotates through the top of the reactor body and extends into the loading frame. The shaft tube is fixedly fitted on the top end of the shaft tube. The driving motor is installed on the loading frame. The output end of the driving motor is connected to the rotating rod. The bottom end of the rotating rod is fixed with a driving gear that meshes with the driven gear.

[0015] As a further optimization of the present invention, the conical swirl component includes a conical disk, a discharge nozzle, and a reverse spiral blade. The conical disk is fixedly mounted on the shaft tube and located below the hopper. The conical disk expands in diameter from top to bottom. A cavity is formed inside the conical disk, and a feed inlet communicating with the cavity is formed at the bottom of the conical disk. Two discharge nozzles communicating with the cavity are symmetrically connected on the conical disk. The reverse spiral blade is mounted on the shaft tube and located below the conical disk, and the top of the reverse spiral blade is placed inside the feed inlet.

[0016] As a further optimization of the present invention, the material guiding component includes a pump, which is installed on the back of the reactor body and communicates with the lower part of the stirring chamber. The discharge end of the pump is connected to a guide pipe, and the guide pipe is communicated with the hopper.

[0017] As a further optimization of the present invention, the outer periphery of the shaft tube is provided with a plurality of circumferentially arranged drainage holes along its length direction, and a water supply component for supplying water to the shaft tube is installed in the loading frame.

[0018] As a further optimization of the present invention, the water supply component includes a shaft tube, the rotary joint is installed in the loading frame and located above the shaft tube, the rotating water outlet end of the rotary joint is connected to the top end of the shaft tube, the water inlet end of the rotary joint is connected to a water supply pipe, and the end of the water supply pipe away from the rotary joint is connected to a water pump.

[0019] As a further optimization of the present invention, the bottom of the reactor body is connected to a discharge pipe that communicates with the stirring chamber, and a valve is installed on the discharge pipe.

[0020] The above-described technical solution of the present invention has the following beneficial technical effects:

[0021] 1. This invention uses two material pipes on the reactor body to feed raw materials and auxiliary materials into a conical part of the premixing chamber. The driver moves the conical part up and down, which beats and disperses the falling material and premixes it. Then the material falls into the hopper and enters the mixing chamber. The conical part slides on the material pipe and scrapes the outer circumference of the material pipe when it moves up and down to prevent material accumulation, reduce waste, and improve utilization. This design changes the traditional situation where the material is concentrated around the stirring shaft, so that the material is premixed before entering the mixing chamber and then more evenly distributed. It also prevents the material from adhering to the material pipe.

[0022] 2. When the conical part moves up and down, the steel balls in the inner wall cavity of the conical cylinder also move along with it, striking and vibrating the inner wall of the conical cylinder. This allows the material to fall quickly under the vibration, reducing the residence time of the material in the conical cylinder and preventing the material from accumulating inside. Combined with the up and down movement of the conical cylinder, this prevents the accumulation of material. Furthermore, this vibration further promotes the premixing effect between the raw materials and auxiliary materials.

[0023] 3. When raw materials and auxiliary materials fall from the conical part through the hopper, the stirring component operates. The drive unit drives the shaft tube to rotate the forward spiral blades and the stirring component. The forward spiral blades are located between the conical part and the hopper. When they rotate, they can make the raw materials and auxiliary materials fall quickly, preventing accumulation and playing a mixing role. When the shaft tube rotates, the conical vortex component installed on it and located below the hopper also rotates. When the raw materials and auxiliary materials fall from the bottom of the hopper into the mixing chamber, the conical vortex component disperses them from the center to the surrounding area. Then the rotating stirring component stirs them. This design makes the material more evenly distributed in the mixing chamber. When the conical vortex component operates, it can also lift the material at the bottom of the mixing chamber and throw it to the surrounding area, playing a tumbling role and further enhancing the mixing effect.

[0024] 4. When the stirring component of the present invention rotates, it can scrape the material on the inner wall of the stirring chamber inside the reactor. This design avoids the material from adhering to the inner wall of the stirring chamber for a long time, reduces the waste of raw materials caused by excessive material accumulation, and improves the utilization rate of raw materials.

[0025] 5. In this invention, after the raw materials and auxiliary materials are stirred and mixed for a certain period of time, the catalyst can be introduced into the conical part through the corresponding material pipe on the reactor body. The catalyst falls into the hopper along the bottom of the conical part. During this process, the raw materials and auxiliary materials mixed for a certain period of time at the bottom of the stirring chamber are transported to the hopper through the material guide to premix with the catalyst. The premixed catalyst raw materials and auxiliary materials are discharged from the bottom of the hopper into the stirring chamber and dispersed from the center of the conical swirl part to the surrounding area. With the cooperation of the stirring parts, the catalyst can be in more complete contact with the raw materials and auxiliary materials, so that the polymerization reaction can be carried out under more uniform conditions, reducing the situation of local reaction being too fast or too slow.

[0026] 6. After the polymerization reaction of the material is completed, the present invention can drive the shaft tube to rotate the stirring component and the conical vortex component in opposite directions through the driving component. The material at the bottom of the stirring chamber will not be lifted into the conical vortex component. Then the reacted material is discharged from the bottom of the reactor body. Then, high-pressure cleaning water can be transported to the shaft tube in the stirring component through the water supply component, and then discharged through the drain hole on the shaft tube. The discharged water can wash the conical cylinder, the hopper and the inner wall of the reactor body respectively, to avoid the accumulation and solidification of material on the inner wall of the equipment, the conical cylinder and the hopper, so that the residual material inside the equipment can be washed clean and recycled, reducing material waste and improving the utilization rate of raw materials. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a polymerization reactor proposed in this invention;

[0028] Figure 2This is a schematic diagram of the back structure of a polymerization reactor proposed in this invention;

[0029] Figure 3 This is an internal cross-sectional view of the reactor body of the present invention;

[0030] Figure 4 For the present invention Figure 3 Overall front view;

[0031] Figure 5 This is a schematic diagram of the structure of the tapered component of the present invention;

[0032] Figure 6 For the present invention Figure 5 Enlarged view of A in the middle;

[0033] Figure 7 This is a schematic diagram of the mating structure of the stirring component and the conical swirl element of the present invention;

[0034] Figure 8 This is an internal sectional view of the conical disk of the present invention;

[0035] Figure 9 This is a schematic diagram of the mating structure between the driving component and the water supply component of the present invention;

[0036] Figure 10 This is a schematic diagram of the material guide component of the present invention.

[0037] Reference numerals: 1. Reactor body; 101. Hopper; 102. Material pipe; 103. Driver; 104. Loading frame; 105. Discharge pipe; 106. Valve; 2. Conical component; 21. Conical cylinder; 22. Jacketed cavity; 23. Separator block; 24. Steel ball; 3. Agitator assembly; 31. Shaft tube; 311. Drain hole; 32. Forward spiral blade; 33. Stirring component; 331. Stirring rod; 332. Scraper bar; 333. Auxiliary rod; 4. Conical vortex component; 41. Conical disc; 42. Discharge nozzle; 43. Reverse spiral blade; 5. Guide component; 51. Pump; 52. Guide pipe; 6. Driver component; 61. Drive motor; 62. Rotating rod; 63. Drive gear; 64. Driven gear; 7. Water supply component; 71. Rotary joint; 72. Water supply pipe. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0039] like Figure 1-10As shown, the present invention proposes a polymerization reactor, which includes a reactor body 1, a driver 103, a conical component 2, and a stirring assembly 3;

[0040] The reactor body 1 is divided into a premixing chamber and a stirring chamber by a feed hopper 101. Multiple material pipes 102 inserted into the premixing chamber are installed on the reactor body 1. A conical piece 2 is placed in the premixing chamber and slidably sleeved on the multiple material pipes 102. Driven up and down by the driver 103, it can beat and scrape the material falling into the material pipes 102.

[0041] The stirring component 3 is installed inside the reactor body 1 to drive the material in the conical part 2 to fall through the hopper 101 into the stirring chamber for stirring. When rotating and stirring, it can scrape the material on the inner wall of the reactor body 1.

[0042] The agitation assembly 3 is equipped with a conical vortex component 4 located below the hopper 101. When the agitation assembly 3 rotates, it drives the conical vortex component 4 to rotate as well, causing the material falling from the hopper 101 to be dispersed from the center to the surroundings, and causing the material at the bottom of the mixing chamber to be lifted into it and thrown out to the surroundings.

[0043] The back of the reactor body 1 is equipped with a guide 5 that conveys the bottom material of the stirring chamber to the feed hopper 101.

[0044] This invention uses two material pipes 102 on the reactor body 1 to respectively introduce raw materials and auxiliary materials into the conical component 2 in the premixing chamber. During this process, the driver 103 can drive the conical component 2 to move up and down. During the sliding process, the conical component 2 taps the material falling from the material pipes 102, breaking up the material agglomeration and achieving preliminary dispersion and premixing. On the other hand, it scrapes the outer circumference of the material pipes 102 to prevent material adhesion and accumulation. During this process, the stirring component 3 operates. The stirring component 3 not only pushes the material processed by the conical component 2 in the premixing chamber through the feed hopper 101 into the stirring chamber, but also rotates and stirs the material in the stirring chamber. At the same time, it scrapes the inner wall of the reactor body 1 to prevent material accumulation on the chamber wall. When the stirring component 3 rotates, it simultaneously drives the conical vortex component 4 to rotate, causing the material falling from the feed hopper 101 to rotate from the feed hopper 101. The mixture is distributed from the center outwards, simultaneously lifting and throwing out the bottom material of the mixing chamber, achieving material tumbling and improving mixing uniformity. After the raw materials and auxiliary materials are mixed for a certain period of time, the catalyst is transported to the conical part 2 through the corresponding material pipe 102. The catalyst is discharged from its bottom into the feed hopper 101. Subsequently, the bottom material of the mixing chamber is transported to the feed hopper 101 through the guide part 5, so that it is premixed with the catalyst. The premixed catalyst raw materials and auxiliary materials are discharged from the bottom of the feed hopper 101 into the mixing chamber and dispersed from the center of the conical vortex part 4 outwards. With the cooperation of the agitator 33, the catalyst can be more fully contacted with the raw materials and auxiliary materials. After the polymerization reaction is completed, the agitator 3 rotates in reverse so that the bottom material of the mixing chamber no longer enters the conical vortex part 4. Finally, the mixture after the polymerization reaction is completed is discharged.

[0045] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, in this embodiment, the conical component 2 includes a conical cylinder 21, which is placed inside the premixing chamber and slidably mounted on multiple material pipes 102. A driver 103 is installed on the top of the reactor body 1. The conical cylinder 21 is connected to the driver 103 and is driven to move up and down by it. A discharge port is provided at the bottom of the conical cylinder 21, and a jacketed cavity 22 is provided on the inner wall of the conical cylinder 21. Multiple spaced partition blocks 23 are installed in the jacketed cavity 22, and steel balls 24 are placed between adjacent partition blocks 23. When material enters the conical cylinder 21 along the material pipes 102, the driver 103 can drive the conical cylinder 21 along the material pipes 102. 02 Sliding up and down, the conical cylinder 21 can receive and beat the falling material in its internal space to promote material premixing. The premixed material enters the hopper 101 through the bottom discharge port. When the conical cylinder 21 slides up and down, it can scrape off the material residue on the outer periphery of the material tube 102 to reduce the waste of raw materials. In addition, the steel ball 24 rolls and collides with the movement trajectory of the conical cylinder 21 in the jacket cavity 22. The vibration generated by the collision is transmitted to the inner wall of the conical cylinder 21, causing the material attached to the inner wall of the conical cylinder 21 to fall off and accelerate the falling speed of the material. At the same time, it further enhances the dispersion and premixing effect of the material in the conical cylinder 21.

[0046] It should be noted that the driver 103 is a telescopic motor. The conical cylinder 21 is connected to the drive end of the telescopic motor and is driven by the telescopic motor to move up and down. In actual operation, the driver 103 that drives the conical cylinder 21 to move up and down includes, but is not limited to, a telescopic motor. Any structure that enables the conical cylinder 21 to move up and down can be selected. Electric push rods or cylinders can also be used.

[0047] It should be further noted that when the conical cylinder 21 moves downward, it can scrape to the bottom of the material pipe 102, and the position of the hopper 101 can meet the downward distance of the conical cylinder 21.

[0048] like Figure 2 , Figure 4 and Figure 7 As shown, in this embodiment, the stirring assembly 3 includes a shaft tube 31, a guide port is provided at the bottom of the hopper 101, the shaft tube 31 is vertically arranged in the reactor body 1 and passes through the conical cylinder 21 and the hopper 101 in sequence, multiple material pipes 102 are distributed around the shaft tube 31, a driving component 6 is installed on the reactor body 1 to drive the shaft tube 31 to rotate, a positive spiral blade 32 is fixed on the shaft tube 31 between the conical cylinder 21 and the hopper 101, and the two ends of the positive spiral blade 32 are respectively located in the discharge port at the bottom of the conical cylinder 21 and the guide port at the bottom of the hopper 101, and a stirring component 33 is installed on the shaft tube 31 in the stirring chamber;

[0049] When the material falls through the material pipe 102, the drive unit 6 drives the shaft pipe 31 to rotate. The shaft pipe 31 drives the forward spiral blades 32 and the agitator 33 to rotate synchronously. The forward spiral blades 32 are located between the discharge port of the conical cylinder 21 and the guide port of the hopper 101. When rotating, the spiral structure generates a downward pushing force to quickly transport the material discharged from the discharge port of the conical cylinder 21 to the guide port of the hopper 101, avoiding the accumulation and blockage of the material between the two. At the same time, the spiral pushing process can also re-mix the material. The agitator 33 is located in the mixing chamber. When it rotates with the shaft pipe 31, it stirs and mixes the material entering the mixing chamber. When the agitator 33 rotates, it can scrape the inner wall of the mixing chamber to reduce the material residue on its inner wall.

[0050] like Figure 8 As shown, in this embodiment, the stirring component 33 includes stirring rods 331. Two inclined stirring rods 331 are symmetrically installed at the bottom end of the shaft tube 31 and located in the stirring chamber. A scraper strip 332 that is attached to the inner wall of the reactor body 1 is installed at the end of the stirring rod 331 away from the shaft tube 31. Multiple auxiliary rods 333 facing the scraper strip 332 are installed on the inner side of the stirring rod 331. When the shaft tube 31 rotates, it drives the two inclined stirring rods 331 on it to rotate accordingly. The inclined structure is used to stir the material in the stirring chamber at multiple angles, breaking the material stratification state and promoting the filling of the material. In the mixing process, the scraper strip 332 at the end of the stirring rod 331 adheres to the inner wall of the reactor body 1. During rotation, it scrapes the inner wall, removing the material adhering to the cavity wall to prevent long-term accumulation and solidification, thus avoiding waste. At the same time, it ensures the cleanliness of the inner wall of the reactor body 1, preventing it from affecting subsequent reactions. The auxiliary rod 333 rotates synchronously with the stirring rod 331. On the one hand, it can assist in stirring and dispersing the material in the mixing chamber, further improving the mixing uniformity. On the other hand, it can break up the material scraped off by the scraper strip 332 again, allowing it to be reintegrated into the mixing material, ensuring that the material fully participates in the reaction.

[0051] like Figure 4 and Figure 9As shown, in this embodiment, the driving component 6 includes a driving motor 61, a rotating rod 62, and a driving gear 63. A loading frame 104 is installed on the top of the reactor body 1. The top end of the shaft tube 31 rotates through the top of the reactor body 1 and extends into the loading frame 104. The shaft tube 31 is fixedly fitted on the top end of the shaft tube 31. The driving motor 61 is installed on the loading frame 104. The output end of the driving motor 61 is connected to the rotating rod 62. The bottom end of the rotating rod 62 is fixed with a driving gear 63 that meshes with the driven gear 64. During operation, the driving motor 61 drives the rotating rod 62 to rotate. The rotating rod 62 drives the driving gear 63 at the bottom end to rotate synchronously. The rotational power of the driving gear 63 is transmitted to the driven gear 64, which in turn drives the shaft tube 31 to rotate. In specific operation, by controlling the speed and direction of the driving motor 61, the rotational speed and direction of the shaft tube 31 are adjusted, thereby controlling the stirring speed and material conveying direction of the stirring component 3 to meet the needs of different reaction stages.

[0052] like Figure 4 , Figure 7 and Figure 8 As shown, in this embodiment, the conical vortex component 4 includes a conical disk 41, a discharge nozzle 42, and a reverse spiral blade 43. The conical disk 41 is fixedly mounted on the shaft tube 31 and located below the hopper 101. The conical disk 41 expands in diameter from top to bottom, and a cavity is formed inside the conical disk 41. A feed inlet communicating with the cavity is formed at the bottom of the conical disk 41. Two discharge nozzles 42 communicating with the cavity are symmetrically connected to the conical disk 41. The reverse spiral blade 43 is mounted on the shaft tube 31 and located below the conical disk 41, with the top of the reverse spiral blade 43 placed inside the feed inlet. When the shaft tube 31 rotates, it synchronously drives the conical disk 41 to rotate. The material falling from the hopper 101 first contacts the rotating conical disk 41. At the top, due to the expanding diameter structure from the top to the bottom of the conical disk 41, the material is dispersed from the center to the edge of the conical disk 41 under the action of centrifugal force, initially achieving uniform distribution of the material. At the same time, the shaft tube 31 drives the reverse spiral blades 43 to rotate. The reverse spiral blades 43 use the spiral structure to generate an upward lifting force, which transports the material at the bottom of the mixing chamber to the cavity of the conical disk 41 through the feed port at the bottom of the conical disk 41. The material entering the cavity is thrown out from the symmetrically arranged discharge nozzles 42 under the action of the centrifugal force of the rotation of the conical disk 41, and is fully mixed with the material falling from the hopper 101, realizing the circulation and tumbling of the upper and lower layers of material in the mixing chamber, improving the uniformity of material mixing, and avoiding insufficient reaction of the bottom layer material.

[0053] like Figure 2 and Figure 10As shown, in this embodiment, the material guide 5 includes a pump 51, which is installed on the back of the reactor body 1 and communicates with the lower part of the stirring chamber. The discharge end of the pump 51 is connected to a guide pipe 52, and the guide pipe 52 is connected to the hopper 101. When it is necessary to add subsequent materials such as catalyst, the material at the bottom of the stirring chamber can be sucked into the pump 51 through the pump 51. Then, the pump 51 pressurizes the sucked material and transports it to the hopper 101 through the guide pipe 52, so that the bottom material and the catalyst can be initially mixed in the hopper 101 and then enter the stirring chamber for deep mixing. This ensures that the newly added catalyst is in uniform contact with the original material, avoids excessively high or low local material concentrations, and ensures the stable progress of the polymerization reaction.

[0054] like Figure 8 and Figure 9 As shown, in this embodiment, the outer periphery of the shaft tube 31 is provided with a plurality of circumferentially arranged drainage holes 311 along its length. A water supply component 7 for supplying water to the shaft tube 31 is installed inside the loading frame 104. The water supply component 7 includes the shaft tube 31, and a rotary joint 71 is installed inside the loading frame 104 and located above the shaft tube 31. The rotating outlet end of the rotary joint 71 is connected to the top end of the shaft tube 31, and the inlet end of the rotary joint 71 is connected to a water supply pipe 72. The end of the water supply pipe 72 away from the rotary joint 71 is connected to a water pump. After the polymerization reaction of the material is completed, the water pump supplies water to the rotary joint 71 through the water supply pipe 72. High-pressure cleaning water is supplied at the inlet end. The high-pressure cleaning water enters the shaft tube 31 through the rotating outlet end of the rotary joint 71, and then sprays out through the drain holes 311 at different positions on the shaft tube 31. Since the shaft tube 31 can rotate under the drive of the drive component 6, the cleaning water sprayed out of the drain holes 311 during the rotation can form an all-round rinsing range, rinsing the inner wall of the conical cylinder 21, the surface of the feed hopper 101, the inner wall of the stirring chamber, and the stirring component 33, etc., and washing away the residual materials attached to these components, which facilitates subsequent cleaning and maintenance, and at the same time avoids the residual materials from affecting the purity of the materials in the next reaction.

[0055] like Figure 2 and Figure 3 As shown, in this embodiment, the bottom of the reactor body 1 is connected to a discharge pipe 105 that communicates with the stirring chamber, and a valve 106 is installed on the discharge pipe 105. After the polymerization reaction is completed, the valve 106 is opened, and the shaft tube 31 is driven to rotate in the opposite direction by the drive component 6. When the shaft tube 31 rotates in the opposite direction, the reverse spiral blade 43 no longer lifts the material into the conical disk 41. The finished material in the stirring chamber is discharged from the reactor body 1 through the discharge pipe 105 under its own gravity and the auxiliary push of the stirring component 33. When the reaction is in progress or when it is necessary to stop the discharge, the valve 106 is closed to ensure that the reactor body 1 maintains a closed environment, which meets the requirements of the polymerization reaction for closed conditions and prevents material leakage.

[0056] In a specific embodiment, a safety valve is installed on the reactor body 1, which can release pressure in a timely manner when the pressure inside the reactor body 1 is too high, thus ensuring the safe use of the equipment.

[0057] The specific working principle of this invention is as follows:

[0058] First, raw materials and auxiliary materials are transported into the premixing chamber through two material pipes 102 on the reactor body 1. During this process, the driver 103 drives the conical cylinder 21 of the conical part 2 to slide up and down along the material pipe 102. When sliding, the conical cylinder 21 scrapes the outer circumference of the material pipe 102 to clean the attached material, and at the same time, it beats the falling material to achieve premixing. The steel balls 24 in the jacketed cavity 22 collide with the conical cylinder 21 and generate vibration, which causes the material on the inner wall of the conical cylinder 21 to fall off. After premixing, the material is discharged through the discharge port of the conical cylinder 21.

[0059] As the material falls, the drive unit 6 drives the shaft tube 31 to rotate, which in turn drives the forward spiral blades 32 to rotate, pushing the material discharged from the conical cylinder 21 to the feed inlet of the hopper 101. The material enters the mixing chamber. When the shaft tube 31 rotates, it simultaneously drives the agitator 33 and the conical vortex component 4 to operate. The agitator rod 331 of the agitator 33 rotates at an angle to agitate the material in the mixing chamber at multiple angles. The scraper strips 332 scrape against the inner wall of the reactor body 1 to prevent material accumulation. The auxiliary rod 333 further disperses the material. The conical disk 41 of the conical vortex component 4 moves with the shaft. The rotation of pipe 31 causes the material falling from hopper 101 to be dispersed from the center to the surroundings under the action of centrifugal force. At the same time, the rotation of the reverse spiral blade 43 lifts the material at the bottom of the mixing chamber to the cavity of the conical disk 41, and then throws it out to the surroundings through the discharge nozzle 42, realizing the material circulating and turning. If a catalyst needs to be added, the catalyst is transported to the conical cylinder 21 through the corresponding material pipe 102. The pump 51 of the guide component 5 is started, and the material at the bottom of the mixing chamber is transported to hopper 101 through guide pipe 52. After being premixed with the catalyst, it enters the mixing chamber together to ensure that the catalyst is in full contact with the raw materials and auxiliary materials.

[0060] After the polymerization reaction is completed, the control drive 6 causes the shaft tube 31 to rotate in the opposite direction. At this time, the reverse spiral blade 43 no longer lifts the bottom material. The valve 106 on the discharge pipe 105 at the bottom of the reactor body 1 is opened. The finished material is discharged through the discharge pipe 105 under the assistance of gravity and the stirring component 33.

[0061] After the finished product is discharged, high-pressure cleaning water is pumped through water supply pipe 72 to rotary joint 71. Rotary joint 71 delivers cleaning water into the shaft tube 31 while the shaft tube 31 is rotating. The cleaning water is sprayed out through the drain hole 311 on the outer periphery of the shaft tube 31 to thoroughly rinse the inner wall of the conical cylinder 21, the surface of the hopper 101, the inner wall of the mixing chamber, and the mixing components 33, removing residual materials and completing the equipment cleaning.

[0062] The embodiments of the present invention have been described above. However, the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A polymerization reactor, characterized in that, It includes a reactor body (1), a driver (103), a conical part (2), and an agitator assembly (3); The reactor body (1) is divided into a premixing chamber and a stirring chamber by a hopper (101). Multiple material pipes (102) inserted into the premixing chamber are installed on the reactor body (1). A conical piece (2) is placed in the premixing chamber and slidably sleeved on the multiple material pipes (102). Driven by the driver (103), it moves up and down and can beat and scrape the material falling into the material pipes (102) on its outer periphery. The stirring component (3) is installed inside the reactor body (1) to drive the material in the conical part (2) through the feed hopper (101) into the stirring chamber for stirring. When rotating and stirring, it can scrape the material on the inner wall of the reactor body (1). The stirring assembly (3) is equipped with a conical vortex component (4) located below the hopper (101). When the stirring assembly (3) rotates, it drives the conical vortex component (4) to rotate as well, causing the material falling from the hopper (101) to disperse from the center to the surrounding area, and causing the material at the bottom of the stirring chamber to be lifted into it and thrown out to the surrounding area. The back of the reactor body (1) is equipped with a guide (5) that conveys the bottom material of the stirring chamber to the feed hopper (101).

2. The polymerization reactor according to claim 1, characterized in that, The conical component (2) includes a conical cylinder (21), which is placed in the premixing chamber and slidably sleeved on multiple material pipes (102). The driver (103) is installed on the top of the reactor body (1). The conical cylinder (21) is connected to the driver (103) and driven to move up and down by it. The bottom of the conical cylinder (21) has a discharge port. The inner wall of the conical cylinder (21) has a jacketed cavity (22), and multiple spaced partition blocks (23) are installed in the jacketed cavity (22). Steel balls (24) are filled between adjacent partition blocks (23).

3. A polymerization reactor according to claim 2, characterized in that, The stirring assembly (3) includes a shaft tube (31), and the bottom of the hopper (101) is provided with a guide port. The shaft tube (31) is vertically arranged in the reactor body (1) and passes through the conical cylinder (21) and the hopper (101) in sequence. Multiple material pipes (102) are distributed around the shaft tube (31) in a circumferential manner. The reactor body (1) is equipped with a driving component (6) that drives the shaft tube (31) to rotate. The shaft tube (31) is fixed with a forward spiral blade (32) located between the conical cylinder (21) and the hopper (101), and the two ends of the forward spiral blade (32) are respectively located in the discharge port at the bottom of the conical cylinder (21) and the guide port at the bottom of the hopper (101). The shaft tube (31) is equipped with a stirring component (33) located in the stirring chamber.

4. A polymerization reactor according to claim 3, characterized in that, The stirring component (33) includes stirring rods (331). Two inclined stirring rods (331) are symmetrically installed at the bottom end of the shaft tube (31) and located in the stirring chamber. A scraper (332) that is attached to the inner wall of the reactor body (1) is installed at the end of the stirring rod (331) away from the shaft tube (31). Multiple auxiliary rods (333) that are set toward the scraper (332) are installed on the inner side of the stirring rod (331).

5. A polymerization reactor according to claim 4, characterized in that, The driving component (6) includes a drive motor (61), a rotating rod (62), and a drive gear (63). A loading frame (104) is installed on the top of the reactor body (1). The top end of the shaft tube (31) rotates through the top of the reactor body (1) and extends into the loading frame (104). The shaft tube (31) is fixedly fitted on the top end of the shaft tube (31). The drive motor (61) is installed on the loading frame (104). The output end of the drive motor (61) is connected to the rotating rod (62). The bottom end of the rotating rod (62) is fixed with a drive gear (63) that meshes with the driven gear (64).

6. A polymerization reactor according to claim 3, characterized in that, The conical vortex component (4) includes a conical disc (41), a discharge nozzle (42), and a reverse spiral blade (43). The conical disc (41) is fixedly mounted on the shaft tube (31) and located below the feed hopper (101). The conical disc (41) is shaped to expand from the top to the bottom. A cavity is opened inside the conical disc (41), and a feed inlet communicating with the cavity is opened at the bottom of the conical disc (41). Two discharge nozzles (42) communicating with the cavity are symmetrically connected on the conical disc (41). The reverse spiral blade (43) is installed on the shaft tube (31) and located below the conical disc (41), and the top of the reverse spiral blade (43) is placed inside the feed inlet.

7. A polymerization reactor according to claim 1, characterized in that, The material guide (5) includes a material pump (51), which is installed on the back of the reactor body (1) and connected to the lower part of the stirring chamber. The discharge end of the material pump (51) is connected to a material guide pipe (52), and the material guide pipe (52) is connected to the material hopper (101).

8. A polymerization reactor according to claim 5, characterized in that, The outer periphery of the shaft tube (31) is provided with a plurality of circumferentially arranged drainage holes (311) along its length direction, and a water supply component (7) for supplying water to the shaft tube (31) is installed in the loading frame (104).

9. A polymerization reactor according to claim 8, characterized in that, The water supply component (7) includes a shaft tube (31), the rotary joint (71) is installed in the loading frame (104) and located above the shaft tube (31), the rotating water outlet end of the rotary joint (71) is connected to the top end of the shaft tube (31), the water inlet end of the rotary joint (71) is connected to a water supply pipe (72), and the end of the water supply pipe (72) away from the rotary joint (71) is connected to a water pump.

10. A polymerization reactor according to claim 1, characterized in that, The bottom of the reactor body (1) is connected to a discharge pipe (105) that communicates with the stirring chamber, and a valve (106) is installed on the discharge pipe (105).

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