Polymerization reaction kettle

Abstract

The utility model relates to a polymerization reaction kettle, and relates to the technical field of reaction kettles, the polymerization reaction kettle comprises a kettle body, the kettle body comprises an upper cylinder and a lower cylinder, the upper cylinder is provided with a feed port, and the lower cylinder is provided with a discharge port; a plurality of middle barrels are arranged between the upper barrel and the lower barrel, the middle barrels are sequentially arranged in the interval direction of the upper barrel and the lower barrel, every two adjacent middle barrels are detachably connected, and the upper barrel and the lower barrel are detachably connected with the corresponding adjacent middle barrels; a stirring assembly for stirring raw materials is arranged in the kettle body, and a power assembly for driving the stirring assembly to stir is arranged on the kettle body. Through the arrangement of the detachable middle cylinder body, the reaction kettle is convenient to disassemble, so that toxic gas cannot be retained, and the influence of cleaning the reaction kettle on the body health of workers can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of reactors, and in particular to a polymerization reactor. Background Art

[0002] Polymer reactor is a kind of equipment widely used in chemical, pharmaceutical, food and other industrial fields. It is mainly used to polymerize a variety of chemical substances under certain pressure and temperature conditions to synthesize the desired compounds.

[0003] At present, common polymer reactors include a reactor body, a stirring device, a transmission device and a temperature control device. Specifically, the reactor body is usually horizontal or vertical cylindrical, with a built-in stirring device. The stirring device mainly includes a stirring shaft and a number of stirring paddles fixed on the outside of the stirring shaft. The stirring shaft is driven by the transmission device to drive the stirring paddles to rotate, so that the stirring paddles break, stir and mix various raw materials, so that polymerization reactions occur between the raw materials to produce the desired products. The temperature control device is often realized through the jacket outside the reactor barrel and the heat exchanger inside the reactor barrel.

[0004] With regard to the above-mentioned related technologies, when using a large polymer reactor, since the reactor body is a closed structure, the reactor body can only be cleaned by workers entering the interior of the reactor body. However, since there may be toxic gases remaining after the chemical reaction of the raw materials in the reactor body, which are harmful to the human body, this may affect the health of the workers who clean the reactor body. Utility Model Content

[0005] The present application provides a polymerization reactor, the purpose of which is to disassemble the reactor when cleaning it through the detachable setting of the intermediate cylinder, so that toxic gases cannot be retained, and it is also easy to clean, reducing the impact of cleaning the reactor on the health of workers.

[0006] A polymerization reactor provided in this application adopts the following technical solution:

[0007] A polymerization reactor, comprising: a reactor body, the reactor body comprising an upper cylinder and a lower cylinder, the upper cylinder is provided with a feed inlet, and the lower cylinder is provided with a discharge port;

[0008] A plurality of intermediate cylinders are arranged between the upper cylinder and the lower cylinder, and the intermediate cylinders are arranged in sequence along the spacing direction of the upper cylinder and the lower cylinder, and two adjacent intermediate cylinders are detachably connected, and the upper cylinder and the lower cylinder are both detachably connected to the corresponding adjacent intermediate cylinders;

[0009] The kettle body is provided with a stirring component for stirring the raw materials, and the kettle body is provided with a power component for driving the stirring component for stirring.

[0010] By adopting the above technical solution, the reactor includes a reactor body, a stirring assembly and a power assembly, and there are a feed port and a discharge port on the reactor body, so the reactor can stir and crush the raw materials, so that the raw materials can react in the reactor, thereby satisfying the basic function of the reactor.

[0011] Among them, the kettle body is composed of an upper cylinder, a lower cylinder and several intermediate cylinders, and two adjacent intermediate cylinders are detachably connected, and the lower cylinder and the upper cylinder can be detachably connected to the adjacent intermediate cylinders. Such a setting, on the one hand, can select the number of intermediate cylinders according to actual needs, thereby changing the size of the reactor. On the other hand, when the reactor needs to be cleaned, the reactor can be split into an upper cylinder, a lower cylinder and several intermediate cylinders, which is convenient for directly cleaning each position in the reactor, and the cleaning process is fully open, so toxic gases cannot remain, which greatly reduces the impact of cleaning the reactor on the health of the staff.

[0012] Optionally, the stirring assembly includes a stirring shaft and a plurality of stirring paddles arranged on the stirring shaft;

[0013] The stirring shaft comprises an upper shaft and a lower shaft, the upper shaft is located in the upper cylinder, and the output end of the power assembly is coaxially connected to one end of the upper shaft, and the lower shaft is arranged in the lower cylinder;

[0014] A plurality of intermediate shafts are arranged between the upper shaft and the lower shaft. The upper shaft, the lower shaft and the plurality of intermediate shafts are coaxially connected, and two adjacent intermediate shafts are detachably connected. The upper shaft and the lower shaft are detachably connected to the corresponding adjacent intermediate shafts.

[0015] By adopting the above technical solution, the stirring component adopts the cooperation of a stirring shaft and a plurality of stirring paddles, which can meet the stirring and crushing function of the raw materials.

[0016] The upper shaft, the lower shaft and several intermediate shafts are all detachably spliced ​​to form a stirring shaft. Such a configuration can adjust the length of the stirring shaft according to the number of intermediate cylinders, so that the stirring shaft can meet the requirements of the corresponding kettle body.

[0017] Optionally, the stirring paddle includes a straight-blade paddle, which is arranged on the intermediate shaft, with one end of the straight-blade paddle being connected to the corresponding outer side wall of the intermediate shaft in the length direction, and the other end extending in the radial direction of the intermediate shaft away from the intermediate shaft.

[0018] By adopting the above technical solution, a straight-blade paddle is used on the intermediate shaft, one end of the straight-blade paddle is connected to the intermediate shaft, and the other end extends in the radial direction of the intermediate shaft away from the intermediate shaft. Therefore, the straight-blade paddle is long and has a higher shear force, which can better break up the raw materials to achieve mass transfer and promote chemical reactions between the raw materials.

[0019] Optionally, the stirring paddle further comprises a hyperbolic curved blade paddle, the upper shaft and the lower shaft are coaxially connected with the hyperbolic curved blade paddle, and a plurality of the straight blade paddles are located between two of the hyperbolic curved blade paddles.

[0020] By adopting the above technical solution, the hyperbolic curved blade paddle adopts the stirring blade in the hyperbolic mixer. When the hyperbolic curved blade paddle on the upper shaft and the hyperbolic curved blade paddle on the lower shaft rotate synchronously, the upper and lower layers of the suspension in the kettle cavity can be better stirred, thereby eliminating the stirring dead corners in the reactor; at the same time, the raw materials in the stirring dead corners will be re-transported to the straight blade paddle stirring area, thereby improving the stirring and crushing effect of the raw materials.

[0021] Optionally, sight mirrors are provided on the intermediate shaft and the lower shaft.

[0022] By adopting the above technical solution, the setting of the sight glass can facilitate the observation of the polymerization reaction in the reactor, timely understand the reaction state, and ensure the controllability of the reaction process.

[0023] Optionally, a plurality of stirring baffles are arranged on the inner wall of the intermediate cylinder, and the plurality of stirring baffles are arranged in sequence and spaced apart along the circumference of the intermediate cylinder.

[0024] By adopting the above technical solution and setting the stirring baffle, the raw materials can impact on the stirring baffle when being stirred in the reactor, thereby increasing the flow resistance of the raw materials in the reactor, causing the raw materials to be subjected to more shearing and mixing during the flow process, thereby further improving the stirring effect.

[0025] Optionally, a temperature control component is further provided on the intermediate cylinder, and the temperature control component includes a heating jacket, which is mounted on the outside of the intermediate cylinder, and a first heating chamber is formed between the inner wall of the heating jacket and the outer wall of the intermediate cylinder, and a jacket outlet and a jacket inlet are provided on the outer wall of the heating jacket, and the jacket outlet and the jacket inlet are both connected to the first heating chamber.

[0026] By adopting the above technical solution, since a first heating chamber is formed between the heating jacket and the intermediate cylinder, a corresponding heating medium or cooling medium is injected into the first heating chamber through the jacket inlet, and then the heating medium or cooling medium in the first heating chamber is discharged through the jacket outlet, thereby enabling the temperature in the intermediate cylinder to be regulated.

[0027] Optionally, the temperature control assembly further comprises an inner heat exchange plate, the intermediate cylinder is sleeved on the outer side of the inner heat exchange plate, a clearance hole is penetrated through the inner heat exchange plate, and the clearance hole is axially arranged along the axial direction of the intermediate cylinder;

[0028] A second heating chamber is formed in the inner heat exchange plate, and a first inlet and a first outlet are formed on the outer wall of the intermediate cylinder. Both the first inlet and the first outlet are connected to the second heating chamber.

[0029] By adopting the above technical solution, an inner heat exchange plate is arranged in the middle cylinder. Since a second heating chamber is opened in the inner heat exchange plate, a corresponding heating medium or cooling medium is injected into the second heating chamber through the first inlet, and then the heating medium or cooling medium in the second heating chamber is discharged through the first outlet, thereby enabling a second level of temperature control in the middle cylinder.

[0030] Among them, a clearance hole is opened through the inner heat exchange plate, and the opening of the clearance hole, on the one hand, allows the raw materials to flow into the lower cylinder from top to bottom, and then be discharged from the lower cylinder. On the other hand, it provides clearance space for the installation of the stirring component.

[0031] Optionally, the inner heat exchange plate is arranged to extend in a direction inclined toward the upper cylinder along a side of the radial direction of the clearance hole away from the clearance hole.

[0032] By adopting the above technical solution, the inner heat exchange plate is arranged so that the inner heat exchange plate is funnel-shaped, thereby reducing the accumulation of raw materials on the inner heat exchange plate and facilitating the raw materials to flow from the clearance hole into the next intermediate cylinder or the lower cylinder body.

[0033] Optionally, a plurality of legs are also provided on the lower cylinder.

[0034] By adopting the above technical solution and the arrangement of the legs, stable support can be provided for the entire kettle body.

[0035] In summary, the present application includes at least one of the following beneficial technical effects:

[0036] 1. The present application facilitates the disassembly of the reactor by providing a detachable intermediate cylinder, thereby facilitating the cleaning of the reactor and reducing the impact of cleaning the reactor on the health of the staff.

[0037] 2. The present application can select the number of intermediate cylinders according to actual needs, thereby changing the size of the reactor and improving the applicability of the reactor.

[0038] 3. The present application can improve the stirring effect of the raw materials in the reactor by combining the straight-blade paddle with the hyperbolic curved-blade paddle, and can also promote the chemical reaction between the raw materials in the reactor.

[0039] 4. The present application can adjust the temperature in the reactor by coordinating the heating jacket with the inner heat exchange plate, thus achieving a dual temperature control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the reactor of the present application.

[0041] Figure 2 It is a schematic cross-sectional view of the reactor of the present application.

[0042] Figure 3 It is a partial cross-sectional structural schematic diagram of the lower cylinder and the middle cylinder of the present application.

[0043] In the figure, 1, kettle body; 11, upper cylinder; 111, feed port; 12, lower cylinder; 121, discharge port; 122, support leg; 13, middle cylinder; 2, temperature control component; 21, heating jacket; 211, first heating chamber; 212, jacket inlet; 213, jacket outlet; 22, inner heat exchange plate; 221, clearance hole; 222, second heating chamber; 223, first inlet; 224, first outlet; 3, stirring component; 31, stirring shaft; 311, upper shaft; 312, lower shaft; 313, middle shaft; 32, stirring paddle; 321, straight-blade paddle; 322, hyperbolic curved-blade paddle; 33, sight glass; 34, stirring baffle; 4, power component. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0045] A polymerization reactor, referring to Figure 1 and Figure 2 , including a kettle body 1, a stirring assembly 3 is arranged in the kettle body 1, and a power assembly 4 is arranged outside the kettle body 1. The stirring assembly 3 includes a stirring shaft 31, the axial direction of the stirring shaft 31 is arranged along the vertical direction, the stirring shaft 31 is located in the kettle body 1, and the axial direction of the stirring shaft 31 is arranged along the axial direction of the kettle body 1, one end of the stirring shaft 31 is rotatably connected to the corresponding inner wall in the kettle body 1, and a plurality of stirring paddles 32 are arranged outside the stirring shaft 31. The power assembly 4 is arranged outside one axial end of the kettle body 1, and the output shaft of the power assembly 4 is coaxially connected to the stirring shaft 31.

[0046] Therefore, the stirring shaft 31 is driven to rotate by the power assembly 4 so that the stirring shaft 31 drives the stirring paddle to stir and mix the raw materials in the kettle body 1, so that the raw materials can undergo a polymerization reaction, thereby satisfying the function of the reactor.

[0047] Reference Figure 1 and Figure 2The kettle body 1 includes an upper cylinder 11, a lower cylinder 12 and a plurality of intermediate cylinders 13. The upper cylinder 11 is located on the upper side of the lower cylinder 12. The plurality of intermediate cylinders 13 are arranged in sequence between the upper cylinder 11 and the lower cylinder 12 along the vertical direction, and the plurality of intermediate cylinders 13 are coaxially arranged with the upper cylinder 11 and the lower cylinder 12.

[0048] Two adjacent intermediate cylinders 13 in the vertical direction are detachably connected, and the upper cylinder 11 is detachably connected to the uppermost intermediate cylinder 13, and the lower cylinder 12 is detachably connected to the lowermost intermediate cylinder 13. In this embodiment, the two adjacent intermediate cylinders 13, the upper cylinder 11 and the uppermost intermediate cylinder 13, and the lower cylinder 12 and the lowermost intermediate cylinder 13 are all connected by bolts, so as to meet the requirements of detachable connection.

[0049] A closed kettle cavity is formed by the upper cylinder 11, the lower cylinder 12 and a plurality of intermediate cylinders 13, thereby providing space for stirring the raw materials and chemical reactions, and the space size of the kettle cavity can be changed by changing the number of intermediate cylinders 13.

[0050] Reference Figure 1 The upper cylinder 11 is provided with a plurality of feed ports 111, and the lower cylinder 12 is provided with a discharge port 121. Therefore, different raw materials are injected into the kettle cavity through the plurality of feed ports 111 of the upper cylinder 11, and the product after stirring reaction can be discharged through the discharge port 121.

[0051] Reference Figure 1 The lower side of the lower cylinder 12 is provided with a plurality of legs 122, which are all provided on the lower side of the lower cylinder 12, and are all provided in the vertical direction, the upper ends of the legs 122 are fixedly connected to the lower cylinder 12, and the plurality of legs 122 are arranged in a circumference. The plurality of legs 122 can provide a stable supporting force for the entire kettle body 1, so that the kettle body 1 can stand upright.

[0052] Reference Figure 1 and 2 The stirring shaft 31 includes an upper shaft 311, a lower shaft 312 and a plurality of intermediate shafts 313. The axial directions of the upper shaft 311, the lower shaft 312 and the intermediate shaft 313 are all arranged in the vertical direction. The upper shaft 311 is coaxially arranged in the upper cylinder 11, the lower shaft 312 is coaxially arranged in the lower cylinder 12, and the intermediate shafts 313 are arranged one by one in correspondence with the intermediate cylinders 13. The plurality of intermediate shafts 313 are coaxially connected in sequence along the vertical direction, and the plurality of intermediate shafts 313 are located between the upper shaft 311 and the lower shaft 312.

[0053] In the vertical direction, two adjacent intermediate shafts 313 are detachably connected, the upper shaft 311 and the uppermost intermediate shaft 313 are coaxially detachably connected, and the lower shaft 312 and the lowermost intermediate shaft 313 are coaxially detachably connected. In this embodiment, two adjacent intermediate shafts 313, the upper shaft 311 and the uppermost intermediate shaft 313, and the lower shaft 312 and the lowermost intermediate shaft 313 are all connected by a connecting shaft, thereby meeting the requirement of coaxial detachable connection.

[0054] Reference Figure 1 and Figure 2 The upper end of the upper shaft 311 is rotatably connected to the inner wall of the upper cylinder 11, and the output shaft of the power assembly 4 is coaxially connected to the upper end of the upper shaft 311, thereby meeting the driving requirements.

[0055] Reference Figure 1 and Figure 2 Specifically, in this embodiment, the power assembly 4 is installed on the upper side of the upper cylinder 11, and the power assembly 4 adopts the cooperation of a motor and a reducer. In addition, the power assembly 4 can also adopt other devices that can drive the stirring shaft 31 to rotate.

[0056] Reference Figure 2 and Figure 3 The stirring paddle 32 includes a straight-blade paddle 321. Each intermediate shaft 313 is provided with a plurality of straight-blade paddles 321. One end of the straight-blade paddle 321 is fixedly connected to the intermediate shaft 313 along its own length direction, and the other end extends along the radial direction of the intermediate shaft 313 toward the inner wall of the intermediate cylinder 13. The plurality of straight-blade paddles are evenly spaced along the circumference of the intermediate shaft 313.

[0057] Reference Figure 2 and Figure 3 In addition, a plurality of straight-blade paddles 321 are also provided on the lower shaft 312, and the straight-blade paddle 321 is fixedly connected to the lower shaft 312 at one end along its own length direction, and the other end extends along the radial direction of the lower shaft 312 toward the inner wall of the lower cylinder 12, and the plurality of straight-blade paddles are evenly spaced along the circumference of the lower shaft 312.

[0058] The structural setting of the straight-blade paddle 321 can provide a higher shear force when the straight-blade paddle 321 is stirring, so that the solid raw materials can be better broken up to achieve mass transfer and the chemical reaction between the raw materials can be better promoted.

[0059] Reference Figure 2 and Figure 3The stirring paddle 32 also includes a hyperbolic curved blade paddle 322, and the upper shaft 311 and the lower shaft 312 are coaxially connected with the hyperbolic curved blade paddle 322, the hyperbolic curved blade paddle 322 of the upper shaft 311 is arranged close to the upper inner wall of the upper cylinder 11, and the hyperbolic curved blade paddle 322 of the lower shaft 312 is arranged close to the lower inner wall of the lower cylinder 12, and the plurality of straight blade paddles 321 are all located between the two hyperbolic curved blade paddles 322 in the vertical direction. In this embodiment, the hyperbolic curved blade paddle 322 adopts the stirring blade in the hyperbolic mixer.

[0060] By setting up two layers of hyperbolic curved blade paddles 322, the upper and lower layers of the suspension in the kettle cavity can be stirred better, thereby eliminating the stirring dead corner in the kettle cavity. At the same time, when the hyperbolic curved blade paddles 322 are working, the raw materials in the stirring dead corner will be re-transported to the stirring area of ​​the straight blade paddle 321, thereby improving the stirring and crushing effect of the raw materials.

[0061] Reference Figure 3 A plurality of stirring baffles 34 are arranged in the middle cylinder 13, and the plurality of stirring baffles 34 are evenly spaced along the circumference of the middle cylinder 13, and one side of the stirring baffle 34 is fixedly connected to the inner wall of the middle cylinder 13, and the other side is extended toward the corresponding middle shaft 313, and the stirring baffle 34 is spaced apart from one end of the corresponding straight-blade paddle 321 away from the middle shaft 313.

[0062] Reference Figure 3 A plurality of stirring baffles 34 are also provided in the lower cylinder 12. The plurality of stirring baffles 34 are evenly spaced along the circumference of the lower cylinder 12, and one side of the stirring baffle 34 is fixedly connected to the inner wall of the lower cylinder 12, and the other side extends toward the corresponding lower cylinder 12, and the stirring baffle 34 is spaced apart from one end of the corresponding straight-blade paddle 321 away from the lower shaft 312.

[0063] The setting of the stirring baffle 34 can increase the flow resistance of the raw materials in the kettle cavity, so that the raw materials are subjected to more shearing and mixing during the flow process, thereby further improving the stirring effect. At the same time, the existence of the stirring baffle 34 can also reduce the adhesion of the raw materials on the inner wall of the kettle cavity, avoiding the waste and agglomeration of the raw materials.

[0064] Reference Figure 2 and Figure 3 , a sight glass 33 is installed on the intermediate shaft 313. Therefore, it is convenient to observe the mixed state of the raw materials in the kettle cavity through the sight glass 33.

[0065] Reference Figure 3A heating jacket 21 is provided on the intermediate cylinder 13, and the heating jacket 21 is sleeved on the outer side of the intermediate cylinder 13, and the heating jacket 21 is fixedly connected to the intermediate cylinder 13, the inner wall of the heating jacket 21 and the outer wall of the intermediate cylinder 13 are spaced apart, and the interval space between the inner wall of the heating jacket 21 and the outer wall of the intermediate cylinder 13 is a first heating chamber 211, and a jacket inlet 212 and a jacket outlet 213 are provided on the outer wall of the heating jacket 21, and the jacket inlet 212 and the jacket outlet 213 are both connected to the first heating chamber 211, and the jacket inlet 212 and the jacket outlet 213 are arranged on opposite sides of the intermediate cylinder 13 along the radial direction of the intermediate cylinder 13, and the jacket inlet 212 is spaced apart at the lower side of the jacket outlet 213 along the vertical direction.

[0066] A heating medium or a cooling medium is introduced through the jacket inlet 212 , and the corresponding heating medium or cooling medium is discharged through the jacket outlet 213 , thereby enabling the temperature control of the raw material in the intermediate sleeve.

[0067] Reference Figure 3 In addition, a heating jacket 21 is also provided on the outer side of the lower cylinder 12, and the structure of the heating jacket 21 on the lower cylinder 12 is similar to the structure of the heating jacket 21 on the intermediate cylinder 13. Therefore, the temperature space of the raw material in the lower cylinder 12 can also be controlled.

[0068] Reference Figure 3 , an inner heat exchange plate 22 is also provided in the intermediate cylinder 13, the intermediate cylinder 13 is sleeved on the outer side of the inner heat exchange plate 22, and the inner heat exchange plate 22 is coaxially arranged with the intermediate cylinder 13, and the inner heat exchange plate 22 is located below the straight-bladed paddle 321 in the intermediate cylinder 13 in the vertical direction. A clearance hole 221 is provided through the upper side of the inner heat exchange plate 22, and the corresponding intermediate shaft 313 is plugged into the clearance hole 221, and the inner side wall of the clearance hole 221 is spaced from the outer side wall of the intermediate shaft 313. Therefore, the raw materials after being stirred in the intermediate cylinder 13 can flow into the next intermediate cylinder 13 or the lower cylinder 12 from the space between the inner side wall of the clearance hole 221 and the outer side wall of the corresponding intermediate shaft 313, thereby ensuring that the final product can be discharged from the discharge port 121 of the lower cylinder 12.

[0069] Reference Figure 3 A second heating chamber 222 is provided in the inner heat exchange plate 22, and a first inlet 223 and a first outlet 224 are provided on the outer side of the intermediate cylinder 13. The first inlet 223 and the first outlet 224 are arranged opposite to each other along the radial direction of the intermediate cylinder 13, and the first inlet 223 and the first outlet 224 are both connected to the second heating chamber 222. The heating medium or the cooling medium can be discharged into the second heating chamber 222 through the first inlet 223, and the heating medium or the cooling medium in the second heating chamber 222 can be discharged through the first outlet 224, so that the second temperature control of the raw material in the intermediate cylinder 13 can be achieved.

[0070] Reference Figure 3 The inner heat exchange plate 22 is in a constricted shape with a larger upper portion and a smaller lower portion. Specifically, the inner heat exchange plate 22 is arranged along the radial direction of the clearance hole 221 and is inclined away from the clearance hole 221 and extends toward the upper cylinder 11. Therefore, the inner heat exchange plate 22 is in a hole shape, which facilitates the downward transportation of the raw materials and prevents the raw materials from being excessively stacked on the inner heat exchange plate 22.

[0071] The implementation principle of the embodiment of the present application is: before use, according to the actual use requirements, the number of intermediate cylinders 13 is selected, and then several intermediate cylinders 13 and corresponding intermediate shafts 313 are assembled to form a complete reactor.

[0072] All raw materials are discharged into the reactor through several feed ports 111 on the reactor, and the raw materials are broken by the stirring component 3 to make the raw materials undergo chemical reaction. During the working process of the stirring component 3, the reaction situation in the reactor is observed through the sight glass 33. When the product requirements are met, the product is discharged through the discharge port 121 on the reactor.

[0073] During the above stirring process, cooling liquid is introduced into the heating jacket 21 and the inner heat exchange plate 22 to absorb the heat generated by the chemical reaction of the raw materials in the reactor, thereby achieving temperature control of the reactor.

[0074] When the reactor needs to be cleaned, the reactor can be directly disassembled into an upper cylinder 11, a lower cylinder 12 and a plurality of intermediate cylinders 13, which is convenient for cleaning by the staff; after cleaning, the reactor can be reassembled so that the reactor can continue to be used.

[0075] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A polymerization reactor, characterized in that: include: A kettle body (1), the kettle body (1) comprising an upper cylinder (11) and a lower cylinder (12), the upper cylinder (11) being provided with a feed inlet (111), and the lower cylinder (12) being provided with a discharge outlet (121); A plurality of intermediate cylinders (13) are arranged between the upper cylinder (11) and the lower cylinder (12); the plurality of intermediate cylinders (13) are arranged in sequence along the spacing direction of the upper cylinder (11) and the lower cylinder (12); two adjacent intermediate cylinders (13) are detachably connected, and the upper cylinder (11) and the lower cylinder (12) are both detachably connected to the corresponding adjacent intermediate cylinders (13); A stirring assembly (3) for stirring raw materials is arranged in the kettle body (1), and a power assembly (4) for driving the stirring assembly (3) for stirring is arranged on the kettle body (1).

2. A polymerization reactor according to claim 1, characterized in that: The stirring assembly (3) comprises a stirring shaft (31) and a plurality of stirring paddles (32) arranged on the stirring shaft (31); The stirring shaft (31) comprises an upper shaft (311) and a lower shaft (312), the upper shaft (311) being located in the upper cylinder (11), and the output end of the power assembly (4) being coaxially connected to one end of the upper shaft (311), and the lower shaft (312) being arranged in the lower cylinder (12); A plurality of intermediate shafts (313) are arranged between the upper shaft (311) and the lower shaft (312); the upper shaft (311), the lower shaft (312) and the plurality of intermediate shafts (313) are all coaxially connected, and two adjacent intermediate shafts (313) are detachably connected; the upper shaft (311) and the lower shaft (312) are both detachably connected to corresponding adjacent intermediate shafts (313).

3. A polymerization reactor according to claim 2, characterized in that: The stirring paddle (32) comprises a straight-blade paddle (321), wherein the straight-blade paddle (321) is arranged on the intermediate shaft (313), wherein one end of the straight-blade paddle (321) in the length direction is connected to the outer side wall of the corresponding intermediate shaft (313), and the other end is extended in a radial direction of the intermediate shaft (313) in a direction away from the intermediate shaft (313).

4. A polymerization reactor according to claim 3, characterized in that: The stirring paddle (32) further comprises a hyperbolic curved blade paddle (322), the upper shaft (311) and the lower shaft (312) are coaxially connected with the hyperbolic curved blade paddle (322), and the plurality of straight blade paddles (321) are located between two of the hyperbolic curved blade paddles (322).

5. A polymerization reactor according to claim 2, characterized in that: The intermediate shaft (313) and the lower shaft (312) are both provided with sight glasses (33).

6. A polymerization reactor according to claim 2, characterized in that: A plurality of stirring baffles (34) are arranged on the inner wall of the intermediate cylinder (13), and the plurality of stirring baffles (34) are arranged in sequence and at intervals along the circumference of the intermediate cylinder (13).

7. A polymerization reactor according to claim 1, characterized in that: The intermediate cylinder (13) is further provided with a temperature control component (2), the temperature control component (2) comprising a heating jacket (21), the heating jacket (21) being sleeved on the outside of the intermediate cylinder (13), a first heating chamber (211) being formed between an inner wall of the heating jacket (21) and an outer wall of the intermediate cylinder (13), a jacket outlet (213) and a jacket inlet (212) being provided on the outer wall of the heating jacket (21), the jacket outlet (213) and the jacket inlet (212) both being in communication with the first heating chamber (211).

8. A polymerization reactor according to claim 7, characterized in that: The temperature control assembly (2) further comprises an inner heat exchange plate (22), the intermediate cylinder (13) being sleeved on the outer side of the inner heat exchange plate (22), the inner heat exchange plate (22) being provided with a clearance hole (221) penetrating therethrough, the clearance hole (221) being axially arranged along the axial direction of the intermediate cylinder (13); A second heating chamber (222) is provided in the inner heat exchange plate (22), and a first inlet (223) and a first outlet (224) are provided on the outer wall of the intermediate cylinder (13); the first inlet (223) and the first outlet (224) are both in communication with the second heating chamber (222).

9. A polymerization reactor according to claim 8, characterized in that: The inner heat exchange plate (22) is arranged to extend in a direction inclined toward the upper cylinder (11) along a side of the clearance hole (221) radially away from the clearance hole (221).

10. A polymerization reactor according to claim 1, characterized in that: A plurality of supporting legs (122) are also provided on the lower cylinder (12).

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