A polymerization reactor convenient for injecting catalyst

Abstract

The present invention discloses a polymerization reactor that is convenient for injecting catalysts, belongs to the technical field of polymerization reaction equipment, comprises a reactor, and also comprises: a cooling reaction mechanism, a multiple stirring mechanism, a catalyst injection mechanism and a quantitative sampling mechanism, wherein the cooling reaction mechanism is installed in the reactor, the multiple stirring mechanism is installed in the middle side of the reactor, the catalyst injection mechanism is installed on the right side of the reactor, the quantitative sampling mechanism is installed on the left side of the reactor, the reactor is a double-layer structure, and the catalyst injection mechanism comprises: an electric valve, a bottom frame, a limiting rod, a support plate, a fixed rod, a sliding rod and a limiting bar, and one end of the electric valve is fixedly connected to the upper right side of the reactor. Through the above-mentioned method, the present invention can cool the outside and inside of the reactor at the same time, improve the uniformity of the temperature of the mixed raw materials in the reactor, can perform rapid quantitative sampling, and can adjust the injection height of the catalyst and the injection amount of the catalyst.

Description

Technical Field

[0001] The invention relates to the technical field of polymerization reaction equipment, in particular to a polymerization reactor which is convenient for injecting catalyst. Background Art

[0002] Butyl rubber is a synthetic rubber made by the cationic polymerization of isobutylene and a small amount of isoprene. Usually, the initiator and monomer are dissolved in methyl chloride, and a specific catalyst is added to initiate the reaction. The polymer is formed at low temperature, and the finished product is obtained after precipitation, washing, and drying. If the reaction temperature is not stably controlled, oligomers with unsaturated end groups will be generated. These oligomers are easy to precipitate and form impurities. Multiple filtration is required after the reaction to ensure the purity of the synthetic product. Quantitative sampling is required multiple times after the reaction to determine whether the reaction is complete. At the same time, the reaction requires the addition of a specific catalyst to initiate the reaction. To ensure the continuous progress of the reaction, the catalyst needs to be sprayed regularly to ensure that the catalyst is in full contact with the reactants to ensure the continuous progress of the reaction.

[0003] The Chinese patent with the announcement number CN212701949U proposes a polymerization reactor, including a polymerization reactor body, three supporting legs are fixed at equal distances at the bottom of the polymerization reactor body, a motor is fixed on the top of the polymerization reactor body, the output shaft of the motor passes through the upper surface of the polymerization reactor body and is fixed with a stirring shaft, a plurality of nuts are connected to the stirring shaft, and two stirring rods are symmetrically fixed on the plurality of nuts, a cleaning ring is fixed at one end of the two stirring rods away from each other, and is fixedly connected to the inner circumference of the cleaning ring, a sampling component and a discharge device are fixed at the bottom of the polymerization reactor body Tube; the sampling assembly includes a heat-conducting tube fixed at the lower end of the polymerization reactor body and communicated with the polymerization reactor body, a support plate is provided in the heat-conducting tube, two second support rods are fixed on the upper surface of the support plate, a second sealing plate is commonly fixed on the upper ends of the two second support rods, a first support rod is fixed on the upper surface of the second sealing plate, a first sealing plate is fixed on the upper end of the first support rod, a spiral pipe is provided between the second sealing plate and the support plate, the top end of the spiral pipe passes through the second sealing plate and is fixed with a tee pipe, a sampling tube is fixed at the other end of the spiral pipe, and the other end of the sampling tube passes through the heat-conducting tube and extends to the outside of the heat-conducting tube.

[0004] However, the technical solution of this patent has the following problems:

[0005] This patent cannot cool the outside and inside of the reactor at the same time, improve the temperature uniformity of the mixed raw materials in the reactor, and cannot adjust the injection height and injection amount of the catalyst.

[0006] Based on this, the present invention designs a polymerization reactor that is convenient for injecting catalyst to solve the above problems. Summary of the Invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides a polymerization reactor that is convenient for injecting catalysts.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A polymerization reactor convenient for injecting catalysts, comprising a reactor, further comprising: a cooling reaction mechanism, a multiple stirring mechanism, a catalyst injection mechanism and a quantitative sampling mechanism, wherein the cooling reaction mechanism is installed in the reactor, the multiple stirring mechanism is installed in the middle side of the reactor, the catalyst injection mechanism is installed on the right side of the reactor, and the quantitative sampling mechanism is installed on the left side of the reactor. The reactor is a double-layer structure, and the catalyst injection mechanism comprises: an electric valve, a bottom frame, a limiting rod, a support plate, a fixed rod, a sliding rod and a limiting strip, one end of the electric valve is fixedly connected to the upper right side of the reactor, and the bottom frame is fixedly installed on the electric valve. The door is away from one end of the reactor, and multiple limit rods are fixedly installed on the bottom frame, the support plate is slidably connected to the limit rod, the upper side of the fixed rod is fixedly installed on the support plate, the lower side of the fixed rod is slidably connected to the bottom frame, and the lower side of the sliding rod is slidably connected to the fixed rod. Multiple limit bars are fixedly installed on the sliding rod, and a vertical slot is provided in the fixed rod. The limit bar is located in the vertical slot, and the limit bar is used to limit the rotation of the sliding rod when sliding. A circular opening is provided on the lower side of the fixed rod for injecting catalyst. The catalyst injection mechanism also includes: an adjustment component, and the adjustment component is installed on the bottom frame.

[0010] Furthermore, the adjustment assembly includes: a linear module, a connecting seat and a threaded rod, the linear module is fixedly mounted on the bottom frame, one side of the support plate is fixedly mounted on the output end of the linear module, the connecting seat is fixedly mounted on the upper side of the support plate, an input port is provided on the connecting seat, a step is fixedly mounted on the upper side of the sliding rod, the step is rotationally sealed and connected to the connecting seat, the lower side of the threaded rod is fixedly connected to the step, and the side of the threaded rod away from the sliding rod is threadedly connected to the upper side of the connecting seat.

[0011] Furthermore, the cooling reaction mechanism includes: a first input pipe, a slip ring, a rectangular pipe and a first output pipe, the first input pipe is fixedly installed on the upper right side of the reactor, the fixed end of the slip ring is fixedly installed on the middle side of the reactor, the lower side of the first input pipe runs through the reactor and is fixedly connected to the liquid inlet on the right side of the fixed end of the slip ring, the right end of the rectangular pipe is fixedly connected to the liquid outlet on the right side of the rotating end of the slip ring, the left end of the rectangular pipe is fixedly connected to the liquid inlet on the left side of the rotating end of the slip ring, the first output pipe is fixedly installed on the upper left side of the reactor, and the lower side of the first output pipe runs through the reactor and is fixedly connected to the liquid outlet on the left side of the fixed end of the slip ring.

[0012] Furthermore, the cooling reaction mechanism further includes: an external cooling component, and the external cooling component is installed in the reactor.

[0013] Furthermore, the outer cooling assembly includes: a sealed shell, a second input pipe and a second output pipe. The sealed shell is fixedly installed in the reactor, the second input pipe runs through the reactor and is fixedly connected to the right side of the sealed shell, and the second output pipe runs through the reactor and is fixedly connected to the lower side of the sealed shell.

[0014] Furthermore, the multiple stirring mechanism includes: a rotating outer tube, a rotating inner rod, a lower stirring head and an upper stirring head. The rotating outer tube is rotationally sealed and connected to the middle side of the reactor, the rotating inner rod is rotationally sealed and connected to the rotating outer tube, multiple lower stirring heads are fixedly installed on the lower side of the rotating inner rod, multiple upper stirring heads are fixedly installed on the rotating outer tube, and the lower side of the rotating outer tube is fixedly connected to the rotating end of the slip ring.

[0015] Furthermore, the multiple stirring mechanism also includes: a driving assembly, which is installed on the upper side of the reactor, and the driving assembly includes: a sleeve, a gear box, a driving motor, a first bevel gear and a second bevel gear. The sleeve is fixedly installed on the upper side of the reactor, the gear box housing is fixedly installed on the upper side of the sleeve, the driving motor housing is fixedly installed on the gear box housing, the driving motor output shaft is fixedly connected to the gear box input end, and the gear box output end is fixedly connected to the rotating inner rod. The first bevel gear is fixedly installed on the upper side of the rotating outer tube and the rotating inner rod, and the second bevel gear is rotatably connected to the side wall of the sleeve through a rotating shaft, and the second bevel gears are meshed with the two first bevel gears.

[0016] Furthermore, the quantitative sampling mechanism includes: a sleeve, a limiting cylinder, a sliding column and a limiting pin, the sleeve is fixedly installed on the left side of the reactor, the limiting cylinder is fixedly installed in the sleeve, the sliding column is slidingly sealed and connected to the limiting cylinder, the limiting pin is fixedly installed on the upper side of the sliding column, a strip groove is provided on the upper right side of the inner wall of the limiting cylinder, an arc groove is provided on the upper left side of the inner wall of the limiting cylinder, the right side of the arc groove and the left side of the strip groove are connected to each other, the end of the limiting pin away from the sliding column is located in the strip groove, a sampling groove is provided on the right side of the sliding column, and a feeding port is provided on the lower side of the sleeve and the limiting cylinder.

[0017] Furthermore, the quantitative sampling mechanism also includes: a fast-moving component, which is installed on the reactor. The fast-moving component includes: a sealing ring and a servo electric cylinder. Two sealing rings are fixedly installed on the right side of the sliding column. The sealing rings are located on the left and right sides of the sampling groove. The servo electric cylinder is fixedly installed on the outer wall of the reactor through a bracket, and the end of the sliding column away from the reactor is rotatably connected to the output end of the servo electric cylinder through the bracket.

[0018] Furthermore, a barometer is fixedly installed on the upper side of the reactor, a thermometer is fixedly installed on the side wall of the reactor, the barometer and thermometer probes are both located inside the reactor, a discharge valve is fixedly installed on the lower side of the reactor, and an inspection port and a feed port are fixedly installed on the upper side of the reactor.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The electric valve of the catalyst injection mechanism is opened by the present invention, and the linear module output end of the regulating assembly moves toward the direction of the reactor, driving the support plate to move toward the direction of the reactor, and the support plate moves toward the direction of the reactor, driving the connecting seat to move toward the direction of the reactor, and the connecting seat moves toward the direction of the reactor, driving the sliding rod to move toward the direction of the reactor, inserting the fixed rod and the sliding rod into the reactor, rotating the threaded rod, and rotating the threaded rod so that the threaded rod moves up and down on the connecting seat, and the threaded rod moves toward the direction of the reactor, driving the sliding rod to move toward the direction of the reactor, and the sliding rod moves toward the direction of the reactor to cover the circular opening on the lower side of the fixed rod, so that the gap of the circular opening is reduced, and the amount of catalyst sprayed from the circular opening is reduced, thereby adjusting the injection amount of the catalyst within a certain period of time, and adjusting the injection height of the catalyst according to the amount of raw materials in the reactor, which is beneficial to spraying the catalyst on the raw materials in a dispersed manner by adjusting the injection height of the catalyst and adjusting the injection amount of the catalyst;

[0020] 2. Liquid nitrogen or other cooling material is injected from the second input pipe of the outer cooling assembly, flows into the sealed shell, and cools the entire reactor. Then the cooling material flows out from the second output pipe to realize circulation. Liquid nitrogen or other cooling material is injected from the first input pipe of the cooling reaction mechanism, flows into the rectangular pipe through the slip ring, and then flows into the first output pipe through the slip ring. At the same time, the rotation of the rotating end of the slip ring drives the rectangular pipe to rotate. While the rectangular pipe assists in stirring the raw materials in the reactor, it cools the raw materials in the middle of the reactor, improves the uniformity of the overall mixed raw material temperature inside the reactor, avoids the excessively high temperature of the raw materials in the middle of the reactor causing impurities, and is conducive to cooling the outside and inside of the reactor at the same time, thereby improving the uniformity of the mixed raw material temperature in the reactor.

[0021] 3. The sliding column of the quantitative sampling mechanism moves toward the reactor, driving the limit pin to move in the strip slot. The limit pin prevents the sliding column from rotating when it moves. The sliding column moves toward the reactor so that the sampling slot of the sliding column enters the reactor, and the reacting raw materials enter the sampling slot. The sliding column moves in the direction away from the reactor, driving the limit pin to move to the leftmost side of the bottom strip slot. The sliding column continues to move in the direction away from the reactor. At this time, the limit pin moves into the arc slot. The movement of the limit pin in the arc slot causes the sliding column to rotate. The sliding column rotates 180 degrees to rotate the sampling slot to the discharge port position, and the reacted raw materials in the sampling slot fall down, which can be quickly and quantitatively sampled. After the reaction, regular quantitative sampling is performed multiple times to judge the reaction degree of the raw materials in the reactor, which is conducive to rapid quantitative sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0023] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ;

[0024] Figure 2 It is a front view of the present invention;

[0025] Figure 3 Schematic diagram of the three-dimensional structure of the present invention Figure 2 ;

[0026] Figure 4 A top view of the present invention;

[0027] Figure 5 To follow Figure 4 Partial schematic diagram of the AA direction cross-sectional view Figure 1 ;

[0028] Figure 6 To follow Figure 4 Partial schematic diagram of the AA direction cross-sectional view Figure 2 ;

[0029] Figure 7 To follow Figure 4 Cross-sectional view in the middle BB direction;

[0030] Figure 8 To follow Figure 4 Partial schematic diagram of the CC direction cross-sectional view;

[0031] Figure 9This is a partially cutaway perspective diagram of the present invention;

[0032] Figure 10 It is a partial structural schematic diagram of the catalyst injection mechanism of the present invention;

[0033] Figure 11 is a cross-sectional view of the catalyst injection mechanism of the present invention;

[0034] Figure 12 for Figure 11 A magnified view of middle A;

[0035] Figure 13 for Figure 11 Enlarged view of middle B;

[0036] Figure 14 This is a partial structural diagram of the quantitative sampling mechanism of the present invention after sampling;

[0037] Figure 15 This is a partial structural diagram of the quantitative sampling mechanism of the present invention before sampling.

[0038] The numbers in the figure represent:

[0039] 1. Reactor; 2. Cooling reaction mechanism; 21. First input pipe; 22. Slip ring; 23. Rectangular pipe; 24. First output pipe; 25. Sealing shell; 26. Second input pipe; 27. Second output pipe; 3. Multiple stirring mechanism; 31. Rotating outer tube; 32. Rotating inner rod; 33. Lower stirring head; 34. Upper stirring head; 35. Sleeve; 36. Gearbox; 37. Drive motor; 38. First bevel gear; 39. Second bevel gear; 4. Catalyst injection mechanism; 41. Electric valve; 42. Bottom frame; 43. Limit Rod; 44. Support plate; 45. Fixed rod; 46. Sliding rod; 47. Limiting bar; 48. Circular opening; 49. Linear module; 410. Connecting seat; 411. Threaded rod; 412. Input port; 413. Step; 5. Quantitative sampling mechanism; 51. Sleeve; 52. Limiting cylinder; 53. Sliding column; 54. Limiting pin; 55. Strip slot; 56. Arc slot; 57. Sampling slot; 58. Feeding port; 59. Sealing ring; 510. Servo cylinder; 6. Barometer; 7. Thermometer; 8. Discharge valve; 9. Inspection port; 10. Feeding port. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] The present invention will be further described below with reference to the embodiments.

[0042] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0043] Example 1: In some embodiments, please refer to Figures 1-15 A polymerization reactor that is convenient for injecting catalysts comprises a reactor 1, further comprising: a cooling reaction mechanism 2, a multiple stirring mechanism 3, a catalyst injection mechanism 4 and a quantitative sampling mechanism 5. The cooling reaction mechanism 2 is installed in the reactor 1, the multiple stirring mechanism 3 is installed in the middle side of the reactor 1, the catalyst injection mechanism 4 is installed on the right side of the reactor 1, and the quantitative sampling mechanism 5 is installed on the left side of the reactor 1. The reactor 1 is a double-layer structure. The catalyst injection mechanism 4 comprises: an electric valve 41, a bottom frame 42, a limiting rod 43, a support plate 44, a fixed rod 45, a sliding rod 46 and a limiting bar 47. One end of the electric valve 41 is fixedly connected to the upper right side of the reactor 1, and the bottom frame 42 is fixedly installed on the far side of the electric valve 41. At one end of the reactor 1, multiple limit rods 43 are fixedly installed on the bottom frame 42, the support plate 44 is slidably connected to the limit rod 43, the upper side of the fixed rod 45 is fixedly installed on the support plate 44, the lower side of the fixed rod 45 is slidably connected to the bottom frame 42, the lower side of the sliding rod 46 is slidably connected in the fixed rod 45, multiple limit bars 47 are fixedly installed on the sliding rod 46, a vertical slot is provided in the fixed rod 45, the limit bar 47 is located in the vertical slot, the limit bar 47 is used to limit the rotation of the sliding rod 46 when sliding, a circular opening 48 is provided on the lower side of the fixed rod 45 for injecting catalyst, and the catalyst injection mechanism 4 also includes: an adjustment component, which is installed on the bottom frame 42.

[0044] The cooling reaction mechanism 2 continuously cools the reactor 1, the multiple stirring mechanism 3 mixes and stirs the raw materials in the reactor 1, the catalyst injection mechanism 4 can inject the catalyst deeply into the reactor 1, and the quantitative sampling mechanism 5 regularly takes quantitative samples from the reactor 1 to judge the reaction degree of the raw materials in the reactor 1.

[0045] The adjustment assembly includes: a linear module 49, a connecting seat 410 and a threaded rod 411. The linear module 49 is fixedly mounted on the bottom frame 42. One side of the support plate 44 is fixedly mounted on the output end of the linear module 49. The connecting seat 410 is fixedly mounted on the upper side of the support plate 44. An input port 412 is provided on the connecting seat 410. A step 413 is fixedly mounted on the upper side of the sliding rod 46. The step 413 is rotationally sealed and connected to the connecting seat 410. The lower side of the threaded rod 411 is fixedly connected to the step 413. The side of the threaded rod 411 away from the sliding rod 46 is threadedly connected to the upper side of the connecting seat 410.

[0046] The electric valve 41 of the catalyst injection mechanism 4 is opened, and the output end of the linear module 49 of the regulating assembly moves toward the direction of the reactor 1, driving the support plate 44 to move toward the direction of the reactor 1. The support plate 44 moves toward the direction of the reactor 1, driving the connecting seat 410 to move toward the direction of the reactor 1. The connecting seat 410 moves toward the direction of the reactor 1, driving the sliding rod 46 to move toward the direction of the reactor 1. The fixed rod 45 and the sliding rod 46 are inserted into the reactor 1, and the threaded rod 411 is rotated. The threaded rod 411 rotates so that the threaded rod 411 moves up and down on the connecting seat 410. The threaded rod 411 moves toward the direction of the reactor 1. The movement drives the sliding rod 46 to move toward the reactor 1. The sliding rod 46 moves toward the reactor 1 to cover the circular opening 48 on the lower side of the fixed rod 45, so that the gap of the circular opening 48 is reduced, and the amount of catalyst sprayed from the circular opening 48 is reduced, so as to adjust the injection amount of the catalyst within a certain period of time. The injection height of the catalyst is adjusted according to the amount of raw materials in the reactor 1, which is beneficial to disperse the catalyst on the raw materials by adjusting the injection height of the catalyst and adjusting the injection amount of the catalyst, thereby avoiding the catalyst being sprayed onto the inner wall at a higher position of the reactor 1 without participating in the reaction, resulting in waste of catalyst.

[0047] Embodiment 2: In some embodiments, as Figures 1-15 As shown, as a preferred embodiment of the present invention, the cooling reaction mechanism 2 includes: a first input pipe 21, a slip ring 22, a rectangular pipe 23 and a first output pipe 24, the first input pipe 21 is fixedly installed on the upper right side of the reactor 1, the fixed end of the slip ring 22 is fixedly installed on the middle side of the reactor 1, the lower side of the first input pipe 21 runs through the reactor 1 and is fixedly connected to the liquid inlet on the right side of the fixed end of the slip ring 22, the right end of the rectangular pipe 23 is fixedly connected to the liquid outlet on the right side of the rotating end of the slip ring 22, the left end of the rectangular pipe 23 is fixedly connected to the liquid inlet on the left side of the rotating end of the slip ring 22, the first output pipe 24 is fixedly installed on the upper left side of the reactor 1, and the lower side of the first output pipe 24 runs through the reactor 1 and is fixedly connected to the liquid outlet on the left side of the fixed end of the slip ring 22.

[0048] Liquid nitrogen or other cooling materials are injected from the first input pipe 21 of the cooling reaction mechanism 2, flow into the rectangular pipe 23 through the slip ring 22, and then flow into the first output pipe 24 through the slip ring 22. At the same time, the rotation of the rotating end of the slip ring 22 drives the rectangular pipe 23 to rotate. The rectangular pipe 23 assists in stirring the raw materials in the reactor 1 while cooling the raw materials in the middle side of the reactor 1, thereby improving the uniformity of the overall mixed raw material temperature inside the reactor 1 and avoiding the appearance of impurities due to excessively high raw material temperature in the middle side of the reactor 1.

[0049] The cooling reaction mechanism 2 further includes an outer cooling component, which is installed in the reactor 1 .

[0050] The outer cooling assembly includes: a sealed shell 25, a second input pipe 26 and a second output pipe 27. The sealed shell 25 is fixedly installed in the reactor 1. The second input pipe 26 runs through the reactor 1 and is fixedly connected to the right side of the sealed shell 25. The second output pipe 27 runs through the reactor 1 and is fixedly connected to the lower side of the sealed shell 25.

[0051] Liquid nitrogen or other cooling material is injected from the second input pipe 26 of the outer cooling assembly and flows into the sealed shell 25 to cool the entire reactor 1 . The cooling material then flows out from the second output pipe 27 .

[0052] Embodiment 3: In some embodiments, as Figures 1-15 As shown, as a preferred embodiment of the present invention, the multiple stirring mechanism 3 includes: a rotating outer tube 31, a rotating inner rod 32, a lower stirring head 33 and an upper stirring head 34, the rotating outer tube 31 is rotationally sealed and connected to the middle side of the reactor 1, the rotating inner rod 32 is rotationally sealed and connected inside the rotating outer tube 31, multiple lower stirring heads 33 are fixedly installed on the lower side of the rotating inner rod 32, multiple upper stirring heads 34 are fixedly installed on the rotating outer tube 31, and the lower side of the rotating outer tube 31 is fixedly connected to the rotating end of the slip ring 22.

[0053] The rotating outer tube 31 of the multi-stirring mechanism 3 rotates to drive the upper stirring head 34 to rotate, and the rotating inner rod 32 rotates to drive the lower stirring head 33 to rotate. The lower stirring head 33 and the upper stirring head 34 rotate in opposite directions to mix the raw materials in the reactor 1.

[0054] The multiple stirring mechanism 3 also includes: a driving assembly, which is installed on the upper side of the reactor 1, and the driving assembly includes: a sleeve 35, a gear box 36, a drive motor 37, a first bevel gear 38 and a second bevel gear 39. The sleeve 35 is fixedly installed on the upper side of the reactor 1, the gear box 36 shell is fixedly installed on the upper side of the sleeve 35, the drive motor 37 shell is fixedly installed on the gear box 36 shell, the drive motor 37 output shaft is fixedly connected to the gear box 36 input end, the gear box 36 output end is fixedly connected to the rotating inner rod 32, the rotating outer tube 31 and the rotating inner rod 32 are both fixedly installed with a first bevel gear 38, the second bevel gear 39 is rotatably connected to the side wall of the sleeve 35 through a rotating shaft, and the second bevel gear 39 is meshed with the two first bevel gears 38.

[0055] The output shaft of the driving motor 37 of the driving assembly rotates, causing the output end of the gear box 36 to rotate. The rotation of the output end of the gear box 36 drives the first bevel gear 38 to rotate. The rotation of the first bevel gear 38 at the output end of the gear box 36 drives the rotating inner rod 32 to rotate. The rotation of the first bevel gear 38 at the output end of the gear box 36 drives the second bevel gear 39 to rotate. The rotation of the second bevel gear 39 drives the first bevel gear 38 on the rotating outer tube 31 to rotate, so that the rotating outer tube 31 and the rotating inner rod 32 rotate in opposite directions at the same time.

[0056] The quantitative sampling mechanism 5 includes: a sleeve 51, a limiting cylinder 52, a sliding column 53 and a limiting pin 54. The sleeve 51 is fixedly installed on the left side of the reactor 1, the limiting cylinder 52 is fixedly installed in the sleeve 51, the sliding column 53 is slidingly and sealingly connected to the limiting cylinder 52, and the limiting pin 54 is fixedly installed on the upper side of the sliding column 53. A strip groove 55 is provided on the upper right side of the inner wall of the limiting cylinder 52, and an arc groove 56 is provided on the upper left side of the inner wall of the limiting cylinder 52. The right side of the arc groove 56 and the left side of the strip groove 55 are connected to each other. The end of the limiting pin 54 away from the sliding column 53 is located in the strip groove 55. A sampling groove 57 is provided on the right side of the sliding column 53. A discharge port 58 is provided on the lower side of the sleeve 51 and the limiting cylinder 52.

[0057] The sliding post 53 of the quantitative sampling mechanism 5 moves toward the reactor 1, driving the limit pin 54 to move in the strip slot 55. The limit pin 54 prevents the sliding post 53 from rotating when moving. The sliding post 53 moves toward the reactor 1 so that the sampling slot 57 of the sliding post 53 enters the reactor 1, and the reacting raw materials enter the sampling slot 57. The sliding post 53 moves in the direction away from the reactor 1, driving the limit pin 54 to move to the leftmost side of the strip slot 55. The sliding post 53 continues to move in the direction away from the reactor 1. At this time, the limit pin 54 moves into the arc slot 56. The limit pin 54 moves in the arc slot 56 to cause the sliding post 53 to rotate. The sliding post 53 rotates 180 degrees to rotate the sampling slot 57 to the position of the discharge port 58. The reacted raw materials in the sampling slot 57 fall down, and rapid quantitative sampling can be performed. After the reaction, regular quantitative sampling is performed multiple times to judge the reaction degree of the raw materials in the reactor 1.

[0058] The quantitative sampling mechanism 5 also includes: a fast-moving component, which is installed on the reactor 1. The fast-moving component includes: a sealing ring 59 and a servo electric cylinder 510. Two sealing rings 59 are fixedly installed on the right side of the sliding column 53. The sealing rings 59 are located on the left and right sides of the sampling groove 57. The servo electric cylinder 510 is fixedly installed on the outer wall of the reactor 1 through a bracket. The end of the sliding column 53 away from the reactor 1 is rotatably connected to the output end of the servo electric cylinder 510 through the bracket.

[0059] The sealing ring 59 of the fast moving component seals the left and right ends of the sampling groove 57, and the output shaft of the servo electric cylinder 510 moves left and right to drive the sliding column 53 to move left and right to achieve sampling.

[0060] A barometer 6 is fixedly installed on the upper side of the reactor 1, a thermometer 7 is fixedly installed on the side wall of the reactor 1, and the probes of the barometer 6 and the thermometer 7 are both located inside the reactor 1. A discharge valve 8 is fixedly installed on the lower side of the reactor 1, and an inspection port 9 and a feed port 10 are fixedly installed on the upper side of the reactor 1.

[0061] The barometer 6 is used to detect the air pressure in the reactor 1, and the thermometer 7 is used to detect the reaction temperature in the reactor 1. The product can be collected by opening the discharge valve 8 on the lower side of the reactor 1. The inspection port 9 is used to flush and inspect the reactor 1, and the feed port 10 is used to transport the raw materials into the reactor 1.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A polymerization reactor convenient for injecting catalyst, comprising a reactor (1), characterized in that: Also includes: A cooling reaction mechanism (2), a multiple stirring mechanism (3), a catalyst injection mechanism (4) and a quantitative sampling mechanism (5), wherein the cooling reaction mechanism (2) is installed in a reactor (1), the multiple stirring mechanism (3) is installed in the middle side of the reactor (1), the quantitative sampling mechanism (5) is installed on the left side of the reactor (1), and the catalyst injection mechanism (4) comprises: an electric valve (41), a bottom frame (42), a limiting rod (43), a support plate (44), a fixed rod (45), a sliding rod (46) and a limiting bar (47), one end of the electric valve (41) is fixedly connected to the upper right side of the reactor (1), and the bottom frame (42) is fixedly installed on the electric valve (41). The movable valve (41) is away from one end of the reactor (1), a plurality of the limiting rods (43) are fixedly mounted on the bottom frame (42), the support plate (44) is slidably connected to the limiting rod (43), the upper side of the fixed rod (45) is fixedly mounted on the support plate (44), the lower side of the fixed rod (45) is slidably connected to the bottom frame (42), the lower side of the sliding rod (46) is slidably connected inside the fixed rod (45), a plurality of the limiting strips (47) are fixedly mounted on the sliding rod (46), a vertical slot is provided inside the fixed rod (45), the limiting strips (47) are located in the vertical slot, and a circular opening (48) is provided on the lower side of the fixed rod (45); The catalyst injection mechanism (4) further comprises: an adjustment component, the adjustment component being mounted on the bottom frame (42), the adjustment component comprising: a linear module (49), a connecting seat (410) and a threaded rod (411), the linear module (49) being fixedly mounted on the bottom frame (42), one side of the support plate (44) being fixedly mounted on the output end of the linear module (49), the connecting seat (410) being fixedly mounted on the upper side of the support plate (44), an input port (412) being provided on the connecting seat (410), a step (413) being fixedly mounted on the upper side of the sliding rod (46), the step (413) being rotationally sealed and connected to the connecting seat (410), the lower side of the threaded rod (411) being fixedly connected to the step (413), and the side of the threaded rod (411) away from the sliding rod (46) being threadedly connected to the upper side of the connecting seat (410); The quantitative sampling mechanism (5) comprises: a sleeve (51), a limiting cylinder (52), a sliding column (53) and a limiting pin (54), wherein the sleeve (51) is fixedly mounted on the left side of the reactor (1), the limiting cylinder (52) is fixedly mounted in the sleeve (51), the sliding column (53) is slidingly and sealingly connected to the limiting cylinder (52), the limiting pin (54) is fixedly mounted on the upper side of the sliding column (53), and the inner wall of the limiting cylinder (52) is fixedly mounted on the upper right side. A strip groove (55) is provided on the side, an arc groove (56) is provided on the upper left side of the inner wall of the limiting cylinder (52), the right side of the arc groove (56) and the left side of the strip groove (55) are connected to each other, the end of the limiting pin (54) away from the sliding column (53) is located in the strip groove (55), a sampling groove (57) is provided on the right side of the sliding column (53), and a discharge port (58) is provided on the lower side of the sleeve (51) and the limiting cylinder (52).

2. The polymerization reactor for facilitating catalyst injection according to claim 1, characterized in that: The cooling reaction mechanism (2) comprises: a first input pipe (21), a slip ring (22), a rectangular pipe (23) and a first output pipe (24), wherein the first input pipe (21) is fixedly mounted on the upper right side of the reactor (1), the fixed end of the slip ring (22) is fixedly mounted on the middle side of the reactor (1), the lower side of the first input pipe (21) passes through the reactor (1) and is fixedly connected to the liquid inlet on the right side of the fixed end of the slip ring (22), the right end of the rectangular pipe (23) is fixedly connected to the liquid outlet on the right side of the rotating end of the slip ring (22), the left end of the rectangular pipe (23) is fixedly connected to the liquid inlet on the left side of the rotating end of the slip ring (22), the first output pipe (24) is fixedly mounted on the upper left side of the reactor (1), and the lower side of the first output pipe (24) passes through the reactor (1) and is fixedly connected to the liquid outlet on the left side of the fixed end of the slip ring (22).

3. The polymerization reactor for facilitating catalyst injection according to claim 2, characterized in that: The cooling reaction mechanism (2) further comprises: an outer cooling component, wherein the outer cooling component is installed in the reactor (1).

4. The polymerization reactor for facilitating catalyst injection according to claim 3, characterized in that: The outer cooling assembly comprises: a sealed shell (25), a second input pipe (26) and a second output pipe (27); the sealed shell (25) is fixedly installed in the reactor (1); the second input pipe (26) runs through the reactor (1) and is fixedly connected to the right side of the sealed shell (25); and the second output pipe (27) runs through the reactor (1) and is fixedly connected to the lower side of the sealed shell (25).

5. The polymerization reactor for facilitating catalyst injection according to claim 4, characterized in that: The multiple stirring mechanism (3) comprises: a rotating outer tube (31), a rotating inner rod (32), a lower stirring head (33) and an upper stirring head (34); the rotating outer tube (31) is connected to the middle side of the reactor (1) in a rotary sealing manner; the rotating inner rod (32) is connected to the inside of the rotating outer tube (31) in a rotary sealing manner; a plurality of the lower stirring heads (33) are fixedly mounted on the lower side of the rotating inner rod (32); a plurality of the upper stirring heads (34) are fixedly mounted on the rotating outer tube (31); and the lower side of the rotating outer tube (31) is fixedly connected to the rotating end of the slip ring (22).

6. The polymerization reactor for facilitating catalyst injection according to claim 5, characterized in that: The multiple stirring mechanism (3) further comprises: a driving assembly, wherein the driving assembly is mounted on the upper side of the reaction kettle (1).

7. The polymerization reactor for facilitating catalyst injection according to claim 6, characterized in that: The quantitative sampling mechanism (5) further comprises: a fast moving component, the fast moving component being mounted on the reactor (1), the fast moving component comprising: a sealing ring (59) and a servo electric cylinder (510), two sealing rings (59) being fixedly mounted on the right side of the sliding column (53), the sealing rings (59) being located on the left and right sides of the sampling slot (57), the servo electric cylinder (510) being fixedly mounted on the outer wall of the reactor (1) via a bracket, and the end of the sliding column (53) away from the reactor (1) being rotatably connected to the output end of the servo electric cylinder (510) via the bracket.

8. The polymerization reactor for facilitating catalyst injection according to claim 7, characterized in that: A barometer (6) is fixedly mounted on the upper side of the reactor (1), a thermometer (7) is fixedly mounted on the side wall of the reactor (1), and probes of the barometer (6) and the thermometer (7) are both located inside the reactor (1). A discharge valve (8) is fixedly mounted on the lower side of the reactor (1), and an inspection port (9) and a feed port (10) are fixedly mounted on the upper side of the reactor (1).

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