PBT esterification reactor

Abstract

The invention relates to the technical field of reactor equipment, and discloses a PBT esterification reactor which comprises a main body, the top of the main body is fixedly connected with a feeding pipe, the bottom of the main body is fixedly connected with a discharging pipe, and the inner wall of the top of the main body is fixedly connected with a fixing cylinder. When the spiral pipe rotates and stirs a material to shake, an internal heating medium can be uniformly transferred into a reaction material, so that heat can be more uniformly transferred into the material while the heat transfer efficiency is improved, the material can fully absorb the heat at each position in the main body, and the heat transfer efficiency is improved. And the condition of insufficient local heating during reaction is reduced, so that uniform heating is more favorably realized.

Description

Technical Field

[0001] The invention relates to the technical field of reactor equipment, in particular to a PBT esterification reactor. Background Art

[0002] The PBT (polybutylene terephthalate) esterification reactor is a key equipment in the PBT production process. In the esterification stage of PBT synthesis, terephthalic acid (PTA) and 1,4-butanediol (BDO) undergo esterification reaction under certain temperature, pressure and catalyst to produce bis(hydroxybutyl) terephthalate (BHBT); PBT materials need to react under a certain temperature environment during reaction. Generally, existing devices basically install coils on the outer surface of the reactor to heat the materials during reaction. Since the heating medium is heating the materials, the materials near the coil area are easily heated higher than the materials in the middle of the reactor, which can easily lead to uneven heating of the materials in the local area during the reaction, affecting the reaction efficiency of the materials. Summary of the invention

[0003] The object of the present invention is to provide a PBT esterification reactor to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a PBT esterification reactor, comprising a main body, a feed pipe is fixedly connected to the top of the main body, a discharge pipe is fixedly connected to the bottom of the main body, a fixed cylinder is fixedly connected to the top inner wall of the main body, and further comprising: The outer surface of the fixed cylinder is provided with a plurality of rectangular grooves, one end of the fixed cylinder away from the feeding pipe is fixedly connected with a square plate, one side of the square plate away from the fixed cylinder is fixedly connected with a sawtooth cylinder, and one side of the square plate away from the fixed cylinder is provided with an inner portion of an annular wave groove; The limiting mechanism includes a rotating frame slidably connected to the outer surface of the fixed cylinder, an annular groove is provided on the top of the rotating frame, a water baffle is rotatably connected inside the annular groove, an auxiliary pipe is fixedly connected to the top of the water baffle, an end of the auxiliary pipe away from the water baffle penetrates the outer wall of the main body and extends to the outside, a plurality of fixed plates are fixedly connected to the side wall of the rotating frame, and a sliding groove is provided on the side wall of the fixed plate; The rotating mechanism includes a motor fixedly connected to the top outer wall of the main body, the output end of the motor penetrates the bottom inner wall of the main body and extends to the inside of the fixed cylinder, the extended end of the motor output end is fixedly connected to the rotating frame 2, the end of the rotating frame 2 away from the motor is rotatably connected to the top outer wall of the square plate, the top inner wall of the rotating frame 2 is fixedly connected to the fan shaft, the inside of the rotating frame 2 is provided with a disc groove, and the inside of the rotating frame 2 is provided with a hollow tube; The shaking mechanism comprises a plurality of obtuse-angle plates rotatably connected to the outer surface of the hollow tube, a telescopic frame is rotatably connected between two obtuse-angle plates, and an intermediate shaft is rotatably connected to the top of the telescopic frame.

[0005] Furthermore, a shaking plate is slidably connected to the outer surface of the hollow tube, and the shaking plate is slidably connected to the inside of the disc groove. A plurality of springs are fixedly connected to the outer surface of the shaking plate, and one end of the plurality of springs away from the shaking plate is fixedly connected to the inner wall of the disc groove. A vortex jet pipe is fixedly connected to one end of the hollow tube away from the motor, and a limiting rod is fixedly connected to the outer surface of the hollow tube, and a telescopic spring rod is fixedly connected to the side of the limiting rod close to the motor, and one end of the telescopic spring rod away from the limiting rod is slidably connected to the inside of the annular wave groove.

[0006] Furthermore, a fixing ring is fixedly connected to one side of the plurality of intermediate shafts away from the telescopic frame, a connecting shaft is fixedly connected to one side of the obtuse angle plate close to the motor, a hollow ring is fixedly connected to one end of the plurality of connecting shafts away from the obtuse angle plate, and the top of the hollow ring is fixedly connected to the bottom outer wall of the rotating frame; The top of the vortex jet pipe is slidably connected to the bottom outer wall of the obtuse-angle plate.

[0007] Furthermore, a cooling mechanism is provided on the outer surface of the square plate, and the cooling mechanism includes a limit plate slidably connected to the outer surfaces of a plurality of connecting shafts, and a spiral tube is fixedly connected to the top of the limit plate.

[0008] Furthermore, one end of the spiral tube away from the limiting plate is fixedly connected to the hollow ring 2, the outer surface of the hollow ring 2 is fixedly connected to the side wall of the hollow ring, the outer surface of the hollow ring 2 is fixedly connected to the connecting tube, the end of the connecting tube away from the hollow ring 2 is fixedly connected to the side wall of the rotating frame, the connecting tube is connected to the interior of the annular groove, the end of the spiral tube close to the limiting plate is fixedly connected to the intermediate tube, the end of the intermediate tube away from the spiral tube penetrates through the outer wall of the rotating frame and extends to the outside.

[0009] Furthermore, the extended end of the middle tube is fixedly connected to a water baffle plate 2, the outer surface of the water baffle plate 2 is rotatably connected to a drainage ring, the top of the drainage ring is fixedly connected to the top inner wall of the main body, the top of the drainage ring is fixedly connected to a drainage pipe, and the end of the drainage pipe away from the drainage ring penetrates the outer wall of the main body and extends to the outside.

[0010] Furthermore, a mixing mechanism is provided on the outer surface of the fixed plate, and the mixing mechanism includes a straight plate fixedly connected to the outer wall of the bottom of the fixed plate, a right-angle groove is opened inside the straight plate, and an elastic plate is provided on the side wall of the straight plate, and one end of the elastic plate close to the fixed plate is slidably connected to the inside of the sliding groove, and two L plates are fixedly connected to one side of the elastic plate close to the straight plate.

[0011] Furthermore, two return springs are fixedly connected to the side of the top L-plate close to the straight plate, and one end of the two return springs away from the L-plate is fixedly connected to the side wall of the straight plate. An arc groove is provided on the side of the straight plate close to the middle of the elastic plate, and a rotating plate is rotatably connected to the side of the L-plate close to the arc groove. An insertion rod is fixedly connected to the side of the rotating plate close to the arc groove, and a side of the insertion rod away from the rotating plate is slidably connected to the inside of the arc groove. A flexible belt is fixedly connected between the two rotating plates, and a number of circular holes are provided on the side wall of the elastic plate.

[0012] The present invention has the following beneficial effects: 1. In the present invention, since the hollow ring is hollow, when the material stirring reaction begins, the hollow ring will float on the liquid surface of the mixed material, and then when the motor is working, it will drive the rotating frame two to rotate rapidly, and when the rotating frame two rotates, it will drive the fan shaft on the top inner wall to rotate synchronously, and when the fan shaft rotates with the rotating frame two, the rotation of the fan shaft will extract the external gas through a plurality of directional grooves on the fixed cylinder, and transport it to the inside of the vortex jet pipe through the hollow tube. At the same time, when the rotating frame two rotates, the rotation of the rotating frame two will drive the shaking disk to rotate rapidly through a plurality of springs inside the disc groove through torsion, and when the shaking disk rotates, it will drive the hollow tube to rotate synchronously, and when the hollow tube rotates, it will drive the connecting shaft to rotate through a plurality of obtuse-angle plates, and when the connecting shaft rotates, it will drive the spiral tube to rotate through the limit plate, and when the spiral tube rotates, When the spiral tube rotates with multiple connecting shafts, the rotating frame will be driven to rotate synchronously through the hollow ring. When the limit plate drives the spiral tube to rotate, the middle part of the spiral tube will swing left and right under the resistance and flow force of the material flow. Since the spiral structure of the spiral tube has a large heat transfer area, the spiral structure on its surface can increase the turbulence of the fluid when the material is stirred during shaking, so that the flow of the heating medium in the tube can be more complicated when the spiral tube is shaken, thereby enhancing the heat transfer effect. When the spiral tube rotates and stirs the material for shaking, the internal heating medium can be evenly transferred to the inside of the reaction material, which improves the heat transfer efficiency and helps to transfer the heat to the material more evenly, so that the material can absorb heat more fully at various positions in the main body, reducing the situation of insufficient local heating during the reaction, which is more conducive to achieving uniform heating.

[0013] 2. According to the present invention, when the hollow tube rotates, the rotation of the hollow tube will drive the limit rod to rotate synchronously. When the limit rod rotates with the hollow tube, the limit rod will be guided by the concave-convex structure of the serrated tube to shake up and down. At the same time, when the limit rod rotates, it will drive the telescopic spring rod to rotate synchronously. When the telescopic spring rod rotates, it will drive the hollow tube to slide back and forth inside the annular wave groove. When the hollow tube slides up and down, it will drive multiple obtuse-angled plates to slide synchronously. When the obtuse-angled plate moves downward with the hollow tube, the multiple obtuse-angled plates will rotate upward under the buoyancy of the material liquid. When the obtuse-angled plate rotates upward, it will drive the surface of the vortex jet pipe to deflect. When the obtuse-angled plate moves upward with the hollow tube, the obtuse-angled plate will rotate downward under the pressure of the material liquid and move When the obtuse-angled plate is reset, it will drive the vortex jet tube to reset. At this time, the vortex jet tube can deflect up and down in the material under the up and down movement of the obtuse-angled plate. When the vortex jet tube deflects up and down, it will stir the inside of the material. At the same time, the fan shaft on the rotating frame 2 will spray into the inside of the material through the vortex jet tube when extracting external gas. At this time, the sprayed gas will be sprayed to the bottom of the material under the stirring of the material by the vortex jet tube. Since there are solid materials in the materials to be mixed, when the vortex jet tube sprays gas and stirs the materials, it can reduce the mixed materials from settling at the bottom of the reactor, resulting in the situation where the local reactant concentration is too high or too low, which affects the reaction speed of the material and the reaction quality.

[0014] 3. In the present invention, when the rotating frame is rotating, the rotation of the rotating frame will drive the multiple straight plates to rotate synchronously through the multiple fixed plates. When the straight plates are rotating, the mixed materials will flow on both sides of the flexible belt. When the materials are flowing, the flexible belt will swing back and forth under the flow of the materials. When the flexible belt swings, it will squeeze the materials on both sides of the flexible belt to reduce the agglomeration of materials when they are stirred and mixed, and reduce the reduction of the contact area between the materials and the mixed materials when they are agglomerated, which affects the reaction rate between the materials and the materials, and can further improve the uniformity of the material mixing reaction.

[0015] 4. In the present invention, when the obtuse-angled plate rotates upward, the rotation of the obtuse-angled plate will push the middle axis to slide upward through the telescopic frame, and when the middle axis slides upward, it will push the fixed ring to move upward synchronously, and when the fixed ring moves upward, the fixed ring will squeeze the side wall of the elastic plate, and after the side wall of the elastic plate is squeezed, it will drive the rotating plate and the flexible belt to fit with the side wall of the straight plate. At this time, when the material flows, part of the material will flow through the gap between the flexible belt and the elastic plate, and at the same time, part of the material will flow through the right-angle groove. When the material flows through the right-angle groove, the material will flow to and impact the side wall of the flexible belt at the right angle of the right-angle groove. At this time, when the flexible belt is affected by the material flowing through the right-angle groove, the insertion rod on the rotating plate will be in the arc groove. The inside slides in the direction of the elastic plate. At this time, the sliding of the rotating plate will drive the flexible belt to deflect. At the same time, when the elastic plate is squeezed by the fixed ring, the bottom of the elastic plate will slide. At this time, the flexible belt will be in a straight state when sliding at the bottom of the elastic plate. Then, when the flexible belt deflects, the flow gap between the flexible belt and the elastic plate will be reduced. At this time, when the material flows through the gap between the elastic plate and the flexible belt, it will flow out in the direction of the spiral tube through several circular holes on the elastic plate. At this time, the material on the edge of the inner wall of the main body can be gathered to the center, so as to reduce the uneven heating of the material on the edge of the inner wall of the main body during the heat reaction, thereby further improving the stability of the material in the reaction process and the uniformity of heating.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the internal parts of the main body of the present invention; Figure 4 It is a schematic diagram of the main body of the present invention; Figure 5 It is a schematic diagram of the shaking mechanism of the present invention; Figure 6 It is a partial cross-sectional schematic diagram of the shaking mechanism of the present invention; Figure 7 It is a schematic diagram of the cooling mechanism of the present invention; Figure 8 It is a partial cross-sectional schematic diagram of the rotating mechanism of the present invention; Fig. 9 It is a schematic diagram of the mixing mechanism of the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. main body; 101. fixed cylinder; 102. square plate; 103. feeding pipe; 2. limiting mechanism; 201. rotating frame; 202. water retaining plate; 203. fixed plate; 3. rotating mechanism; 301. motor; 302. rotating frame 2; 303. hollow tube; 304. vortex jet tube; 305. limiting rod; 306. telescopic spring rod; 307. shaking plate; 4. shaking mechanism; 401. obtuse plate; 402. telescopic frame; 403. fixed ring; 404. connecting shaft; 405. hollow ring; 5. cooling mechanism; 501. limiting plate; 502. spiral tube; 503. hollow ring 2; 504. drainage ring; 6. mixing mechanism; 601. straight plate; 602. right-angle groove; 603. elastic plate; 604. L plate; 605. rotating plate; 606. flexible belt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 - Fig. 9 As shown, the present invention is a PBT esterification reactor, comprising a main body 1, a feed pipe 103 is fixedly connected to the top of the main body 1, a discharge pipe is fixedly connected to the bottom of the main body 1, a fixed cylinder 101 is fixedly connected to the top inner wall of the main body 1, and further comprising; The outer surface of the fixed cylinder 101 is provided with a plurality of rectangular grooves. The end of the fixed cylinder 101 away from the feeding pipe 103 is fixedly connected to a square plate 102. The side of the square plate 102 away from the fixed cylinder 101 is fixedly connected to a sawtooth cylinder. The side of the square plate 102 away from the fixed cylinder 101 is provided with an inner portion of an annular wave groove. The limiting mechanism 2 includes a rotating frame 201 slidably connected to the outer surface of the fixed cylinder 101, an annular groove is provided on the top of the rotating frame 201, a water baffle 202 is rotatably connected inside the annular groove, an auxiliary pipe is fixedly connected to the top of the water baffle 202, and one end of the auxiliary pipe away from the water baffle 202 penetrates the outer wall of the main body 1 and extends to the outside, a plurality of fixed plates 203 are fixedly connected to the side wall of the rotating frame 201, and a sliding groove is provided on the side wall of the fixed plate 203; The rotating mechanism 3 includes a motor 301 fixedly connected to the top outer wall of the main body 1, the output end of the motor 301 penetrates the bottom inner wall of the main body 1 and extends to the inside of the fixed cylinder 101, the extended end of the output end of the motor 301 is fixedly connected to the second rotating frame 302, the end of the second rotating frame 302 away from the motor 301 is rotatably connected to the top outer wall of the square plate 102, the top inner wall of the second rotating frame 302 is fixedly connected to the fan shaft, the inside of the second rotating frame 302 is provided with a disc groove, and the inside of the second rotating frame 302 is provided with a hollow tube 303; The shaking mechanism 4 includes a plurality of obtuse-angled plates 401 rotatably connected to the outer surface of the hollow tube 303, a telescopic frame 402 is rotatably connected between two obtuse-angled plates 401, and an intermediate shaft is rotatably connected to the top of the telescopic frame 402. Since the hollow ring 405 is hollow, when the stirring reaction of the material begins, the hollow ring 405 will float on the liquid surface of the mixed material, and then when the motor 301 is working, it will drive the rotating frame 2 302 to rotate rapidly, and the rotating frame 2 302 will drive the fan shaft on the top inner wall to rotate synchronously when rotating. When the fan shaft rotates with the rotating frame 2 302, the rotation of the fan shaft will extract the external gas through the plurality of directional grooves on the fixed cylinder 101, and transport it to the inside of the vortex jet pipe 304 through the hollow tube 303.

[0022] The outer surface of the hollow tube 303 is slidably connected to a shaking plate 307, and the shaking plate 307 is slidably connected to the inside of the disc groove. The outer surface of the shaking plate 307 is fixedly connected to a plurality of springs, and one end of the plurality of springs away from the shaking plate 307 is fixedly connected to the inner wall of the disc groove. The end of the hollow tube 303 away from the motor 301 is fixedly connected to a vortex jet pipe 304, and the outer surface of the hollow tube 303 is fixedly connected to a limiting rod 305, and the side of the limiting rod 305 close to the motor 301 is fixedly connected to a telescopic spring rod 306, and the end of the telescopic spring rod 306 away from the limiting rod 305 is slidably connected to the inside of the annular wave groove. At the same time, when the rotating frame 2 302 rotates, the rotation of the rotating frame 2 302 will drive the shaking plate 307 to rotate rapidly through the torsion of the plurality of springs inside the disc groove, and when the shaking plate 307 rotates, it will drive the hollow tube 303 to rotate synchronously.

[0023] A fixing ring 403 is fixedly connected to one side of the intermediate shafts away from the telescopic frame 402, a connecting shaft 404 is fixedly connected to one side of the obtuse angle plate 401 close to the motor 301, and a hollow ring 405 is fixedly connected to one end of the connecting shafts 404 away from the obtuse angle plate 401, and the top of the hollow ring 405 is fixedly connected to the bottom outer wall of the rotating frame 201; Among them, the top of the vortex jet pipe 304 is slidably connected to the bottom outer wall of the obtuse plate 401. When the obtuse plate 401 moves downward with the hollow tube 303, multiple obtuse plates 401 will rotate upward under the buoyancy of the material liquid. When the obtuse plate 401 rotates upward, the surface of the vortex jet pipe 304 will be deflected. When the obtuse plate 401 moves upward with the hollow tube 303, the obtuse plate 401 will rotate downward and reset under the pressure of the material liquid.

[0024] A cooling mechanism 5 is provided on the outer surface of the square plate 102, and the cooling mechanism 5 includes a limit plate 501 slidably connected to the outer surfaces of several connecting shafts 404, and a spiral tube 502 is fixedly connected to the top of the limit plate 501. When the connecting shaft 404 rotates, the spiral tube 502 is driven to rotate through the limit plate 501. When the spiral tube 502 and multiple connecting shafts 404 rotate, the rotating frame 201 is driven to rotate synchronously through the hollow ring 405. When the limit plate 501 drives the spiral tube 502 to rotate, the middle part of the spiral tube 502 will swing left and right under the resistance and flow force of the material flow.

[0025] One end of the spiral tube 502 away from the limit plate 501 is fixedly connected to the hollow ring 2 503, the outer surface of the hollow ring 2 503 is fixedly connected to the side wall of the hollow ring 405, the outer surface of the hollow ring 2 503 is fixedly connected to a connecting pipe, the end of the connecting pipe away from the hollow ring 2 503 is fixedly connected to the side wall of the rotating frame 201, the connecting pipe is connected to the interior of the annular groove, the end of the spiral tube 502 close to the limit plate 501 is fixedly connected to an intermediate tube, the end of the intermediate tube away from the spiral tube 502 penetrates the outer wall of the rotating frame 201 and extends to the outside, because the spiral structure of the spiral tube 502 has a large heat transfer area, the spiral structure on its surface can increase the turbulence of the fluid when the material is stirred when it is shaken.

[0026] The extended end of the middle tube is fixedly connected with a water baffle plate 2, and the outer surface of the water baffle plate 2 is rotatably connected with a drain ring 504. The top of the drain ring 504 is fixedly connected to the top inner wall of the main body 1, and the top of the drain ring 504 is fixedly connected with a drain pipe. The end of the drain pipe away from the drain ring 504 penetrates the outer wall of the main body 1 and extends to the outside. When the spiral tube 502 is shaken, the flow of the heating medium in the tube can be more complicated, thereby enhancing the heat transfer effect. When the spiral tube 502 rotates and stirs the material for shaking, the internal heating medium can be evenly transferred to the inside of the reaction material.

[0027] A mixing mechanism 6 is provided on the outer surface of the fixed plate 203, and the mixing mechanism 6 includes a straight plate 601 fixedly connected to the outer wall of the bottom of the fixed plate 203, a right-angle groove 602 is opened inside the straight plate 601, and an elastic plate 603 is provided on the side wall of the straight plate 601. One end of the elastic plate 603 close to the fixed plate 203 is slidably connected to the inside of the sliding groove, and two L plates 604 are fixedly connected to the side of the elastic plate 603 close to the straight plate 601. When the rotating frame 201 is rotating, the rotation of the rotating frame 201 will drive the multiple straight plates 601 to rotate synchronously through the multiple fixed plates 203. When the straight plate 601 is rotating, the mixed material will flow on both sides of the flexible belt 606. When the material is flowing, the flexible belt 606 will swing back and forth under the flow of the material. When the flexible belt 606 is swinging, the material on both sides of the flexible belt 606 will be squeezed to reduce the agglomeration of the material when the material is stirred and mixed.

[0028] The top L-plate 604 is fixedly connected to one side of the straight plate 601 with two return springs, and one end of the two return springs away from the L-plate 604 is fixedly connected to the side wall of the straight plate 601. An arc groove is provided on one side of the straight plate 601 close to the middle of the elastic plate 603. A rotating plate 605 is rotatably connected to the side of the L-plate 604 close to the arc groove. A plug rod is fixedly connected to the side of the rotating plate 605 close to the arc groove. The side of the plug rod away from the rotating plate 605 is slidably connected to the inside of the arc groove. A flexible spring is fixedly connected between the two rotating plates 605. Belt 606, the side wall of the elastic plate 603 is provided with a plurality of circular holes, and the material will flow to and impact the side wall of the flexible belt 606 through the right angle of the right-angle groove 602. At this time, when the flexible belt 606 is affected by the material flowing through the right-angle groove 602, the insertion rod on the rotating plate 605 will slide inside the arc groove toward the direction of the elastic plate 603. At this time, the sliding of the rotating plate 605 will drive the flexible belt 606 to deflect. At the same time, when the elastic plate 603 is squeezed by the fixing ring 403, the bottom of the elastic plate 603 will slide.

[0029] When in use, the material is first transported to the interior of the main body 1 through the feed pipe 103, and then the drain pipe on the drain ring 504 is connected to the external drain pipe, and then the external water inlet pipe is connected to the auxiliary pipe on the water baffle 202, and then the heating medium is transported to the annular groove through the auxiliary pipe, and then the heating medium will circulate inside the spiral tube 502 through the annular groove, and then the motor 301 is started. When working, the motor 301 will drive the square plate 102 to rotate. When the square plate 102 rotates, it will be twisted by the spring on the inside of the shaking plate 307 and then drive the hollow tube 303 to rotate through the shaking plate 307. When the hollow tube 303 rotates, it will drive the connecting shaft 404 through the obtuse plate 401 and drive the rotating frame 201 to rotate through the hollow ring 405 on the connecting shaft 404. When the rotating frame 201 rotates, it will drive the mixing mechanism 6 to stir and mix the materials that need to react, and complete the reaction through the circulating heating of the spiral tube 502.

[0030] Since the hollow ring 405 is hollow, when the material is stirred, the hollow ring 405 will float on the liquid surface of the mixed material. Then, when the motor 301 is working, it will drive the rotating frame 2 302 to rotate rapidly. When the rotating frame 2 302 rotates, it will drive the fan shaft on the top inner wall to rotate synchronously. When the fan shaft rotates with the rotating frame 2 302, the rotation of the fan shaft will extract the external gas through the several directional grooves on the fixed cylinder 101 and pass through the hollow tube 303. The liquid is transported to the interior of the vortex jet pipe 304. At the same time, when the rotating frame 302 rotates, the rotation of the rotating frame 302 will drive the shaking plate 307 to rotate rapidly through the twisting of the plurality of springs inside the disc groove. When the shaking plate 307 rotates, it will drive the hollow tube 303 to rotate synchronously. When the hollow tube 303 rotates, it will drive the connecting shaft 404 to rotate through the plurality of obtuse plates 401. When the connecting shaft 404 rotates, it will drive the spiral tube 503 to rotate synchronously through the limiting plate 501. 02 rotates, when the spiral tube 502 and the multiple connecting shafts 404 rotate, the hollow ring 405 will drive the rotating frame 201 to rotate synchronously, and when the limit plate 501 drives the spiral tube 502 to rotate, the middle part of the spiral tube 502 will swing left and right under the resistance and flow force of the material flow. Since the spiral structure of the spiral tube 502 has a large heat transfer area, the spiral structure on its surface can increase the turbulence of the fluid when the material is stirred during shaking, so that the flow of the heating medium in the spiral tube 502 is more complicated when it is shaken, thereby enhancing the heat transfer effect. When the spiral tube 502 rotates and stirs the material for shaking, the internal heating medium can be evenly transferred to the inside of the reaction material, which improves the heat transfer efficiency and helps to transfer the heat to the material more evenly, so that the material can absorb heat more fully at each position in the main body 1, reducing the situation of insufficient local heating during the reaction, which is more conducive to achieving uniform heating.

[0031] When the hollow tube 303 rotates, the rotation of the hollow tube 303 will drive the limiting rod 305 to rotate synchronously. When the limiting rod 305 rotates with the hollow tube 303, the limiting rod 305 will be guided by the concave-convex structure of the serrated tube to shake up and down. At the same time, when the limiting rod 305 rotates, the telescopic spring rod 306 will be driven to rotate synchronously. When the telescopic spring rod 306 rotates, it will drive the hollow tube 303 to slide back and forth inside the annular wave groove. When the hollow tube 303 slides up and down, it will drive multiple obtuse-angled plates 401 to slide synchronously. When the obtuse-angled plates 401 move downward with the hollow tube 303, the multiple obtuse-angled plates 401 will rotate upward under the buoyancy of the material liquid. When the obtuse-angled plates 401 rotate upward, the surface of the vortex jet tube 304 will be deflected. When the obtuse-angled plates 401 move upward with the hollow tube 303, the obtuse-angled plates 401 will rotate in the material liquid. The vortex jet tube 304 can be deflected up and down in the material under the up and down movement of the obtuse plate 401. When the vortex jet tube 304 deflects up and down, it will stir the inside of the material. At the same time, the fan shaft on the rotating frame 302 will eject the external gas into the material through the vortex jet tube 304 when extracting the external gas. At this time, the ejected gas will be ejected to the bottom of the material under the stirring of the material by the vortex jet tube 304. Since there are solid materials in the materials to be mixed, when the vortex jet tube 304 ejects gas and stirs the materials, the mixed materials can be reduced from settling at the bottom of the reactor, resulting in the situation where the local reactant concentration is too high or too low, which affects the reaction speed of the materials and the reaction quality.

[0032] When the rotating frame 201 is rotating, the rotation of the rotating frame 201 will drive the multiple straight plates 601 to rotate synchronously through the multiple fixed plates 203. When the straight plates 601 are rotating, the mixed materials will flow on both sides of the flexible belt 606. When the materials are flowing, the flexible belt 606 will swing back and forth under the flow of the materials. When the flexible belt 606 is swinging, the materials on both sides of the flexible belt 606 will be squeezed to reduce the agglomeration of materials when they are stirred and mixed, and reduce the reduction of the contact area between the materials and the mixed materials when they are agglomerated, thereby affecting the reaction rate between the materials and the materials, and can further improve the uniformity of the material mixing reaction.

[0033] When the obtuse-angled plate 401 rotates upward, the rotation of the obtuse-angled plate 401 will push the middle axis to slide upward through the telescopic frame 402. When the middle axis slides upward, it will push the fixed ring 403 to move upward synchronously. When the fixed ring 403 moves upward, the fixed ring 403 will squeeze the side wall of the elastic plate 603. After the side wall of the elastic plate 603 is squeezed, it will drive the rotating plate 605 and the flexible belt 606 to fit the side wall of the straight plate 601. At this time, when the material flows, part of the material will flow through the gap between the flexible belt 606 and the elastic plate 603, and at the same time, part of the material will flow through the right-angle groove 602. When the material flows through the right-angle groove 602, the material will flow to and impact the side wall of the flexible belt 606 at the right angle of the right-angle groove 602. At this time, when the flexible belt 606 is affected by the material flowing through the right-angle groove 602, the insertion rod on the rotating plate 605 will be in the arc 603, and the flexible belt 606 is in a straight state when sliding at the bottom of the elastic plate 603. Subsequently, when the flexible belt 606 is deflected, the flow gap between the flexible belt 606 and the elastic plate 603 is reduced. At this time, when the material flows through the gap between the elastic plate 603 and the flexible belt 606, it will flow out through several circular holes on the elastic plate 603 toward the direction of the spiral tube 502. At this time, the material on the edge of the inner wall of the main body 1 can be gathered toward the center, so as to reduce the uneven heating of the material on the edge of the inner wall of the main body 1 during the heat reaction, thereby further improving the stability of the material in the reaction process and the uniformity of heating.

[0034] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A PBT esterification reactor, comprising a main body (1), wherein a feed pipe (103) is fixedly connected to the top of the main body (1), a discharge pipe is fixedly connected to the bottom of the main body (1), and a fixed cylinder (101) is fixedly connected to the inner wall of the top of the main body (1), characterized in that: Also includes; The outer surface of the fixed cylinder (101) is provided with a plurality of rectangular grooves; one end of the fixed cylinder (101) away from the feed pipe (103) is fixedly connected to a square plate (102); a side of the square plate (102) away from the fixed cylinder (101) is fixedly connected to a sawtooth cylinder; and a side of the square plate (102) away from the fixed cylinder (101) is provided with an inner portion of an annular wave groove; A limiting mechanism (2), the limiting mechanism (2) comprising a rotating frame (201) slidably connected to the outer surface of the fixed cylinder (101), an annular groove being provided on the top of the rotating frame (201), a water baffle plate (202) being rotatably connected inside the annular groove, an auxiliary pipe being fixedly connected to the top of the water baffle plate (202), one end of the auxiliary pipe away from the water baffle plate (202) penetrating through the outer wall of the main body (1) and extending to the outside, a plurality of fixed plates (203) being fixedly connected to the side wall of the rotating frame (201), and a sliding groove being provided on the side wall of the fixed plate (203); A rotating mechanism (3), the rotating mechanism (3) comprising a motor (301) fixedly connected to the top outer wall of the main body (1), the output end of the motor (301) passing through the bottom inner wall of the main body (1) and extending into the interior of the fixed cylinder (101), the extension end of the output end of the motor (301) being fixedly connected to a second rotating frame (302), one end of the second rotating frame (302) away from the motor (301) being rotatably connected to the top outer wall of the square plate (102), the top inner wall of the second rotating frame (302) being fixedly connected to a fan shaft, a disc groove being provided inside the second rotating frame (302), and a hollow tube (303) being provided inside the second rotating frame (302); A shaking mechanism (4), the shaking mechanism (4) comprising a plurality of obtuse-angled plates (401) rotatably connected to the outer surface of the hollow tube (303), a telescopic frame (402) rotatably connected between two of the obtuse-angled plates (401), and a middle shaft rotatably connected to the top of the telescopic frame (402).

2. A PBT esterification reactor according to claim 1, characterized in that: The outer surface of the hollow tube (303) is slidably connected to a shaking plate (307), and the shaking plate (307) is slidably connected to the inside of the circular disc groove. The outer surface of the shaking plate (307) is fixedly connected to a plurality of springs, and one end of the plurality of springs away from the shaking plate (307) is fixedly connected to the inner wall of the circular disc groove. The end of the hollow tube (303) away from the motor (301) is fixedly connected to a vortex jet pipe (304). The outer surface of the hollow tube (303) is fixedly connected to a limit rod (305), and a telescopic spring rod (306) is fixedly connected to the side of the limit rod (305) close to the motor (301), and one end of the telescopic spring rod (306) away from the limit rod (305) is slidably connected to the inside of the annular wave groove.

3. A PBT esterification reactor according to claim 2, characterized in that: A fixing ring (403) is fixedly connected to one side of the intermediate shafts away from the telescopic frame (402); a connecting shaft (404) is fixedly connected to one side of the obtuse-angled plate (401) close to the motor (301); a hollow ring (405) is fixedly connected to one end of the connecting shafts (404) away from the obtuse-angled plate (401); and the top of the hollow ring (405) is fixedly connected to the bottom outer wall of the rotating frame (201); The top of the vortex jet pipe (304) is slidably connected to the bottom outer wall of the obtuse-angle plate (401).

4. A PBT esterification reactor according to claim 3, characterized in that: The outer surface of the square plate (102) is provided with a cooling mechanism (5), and the cooling mechanism (5) comprises a limit plate (501) slidably connected to the outer surfaces of a plurality of the connecting shafts (404), and a spiral tube (502) is fixedly connected to the top of the limit plate (501).

5. A PBT esterification reactor according to claim 4, characterized in that: The end of the spiral tube (502) away from the limiting plate (501) is fixedly connected to the hollow ring 2 (503), the outer surface of the hollow ring 2 (503) is fixedly connected to the side wall of the hollow ring (405), the outer surface of the hollow ring 2 (503) is fixedly connected to a connecting tube, the end of the connecting tube away from the hollow ring 2 (503) is fixedly connected to the side wall of the rotating frame (201), the connecting tube is connected to the inside of the annular groove, the end of the spiral tube (502) close to the limiting plate (501) is fixedly connected to the intermediate tube, the end of the intermediate tube away from the spiral tube (502) penetrates the outer wall of the rotating frame (201) and extends to the outside.

6. A PBT esterification reactor according to claim 5, characterized in that: The extended end of the intermediate tube is fixedly connected to a second water baffle plate, the outer surface of the second water baffle plate is rotatably connected to a drainage ring (504), the top of the drainage ring (504) is fixedly connected to the top inner wall of the main body (1), the top of the drainage ring (504) is fixedly connected to a drainage pipe, and the end of the drainage pipe away from the drainage ring (504) penetrates the outer wall of the main body (1) and extends to the outside.

7. A PBT esterification reactor according to claim 6, characterized in that: The outer surface of the fixed plate (203) is provided with a mixing mechanism (6), the mixing mechanism (6) comprising a straight plate (601) fixedly connected to the outer wall of the bottom of the fixed plate (203), a right-angle groove (602) being provided inside the straight plate (601), an elastic plate (603) being provided on the side wall of the straight plate (601), one end of the elastic plate (603) close to the fixed plate (203) being slidably connected to the inside of the sliding groove, and two L-plates (604) being fixedly connected to one side of the elastic plate (603) close to the straight plate (601).

8. A PBT esterification reactor according to claim 7, characterized in that: Two return springs are fixedly connected to a side of the L-plate (604) at the top close to the straight plate (601); one end of the two return springs away from the L-plate (604) is fixedly connected to the side wall of the straight plate (601); an arc-shaped groove is provided on a side of the straight plate (601) close to the middle of the elastic plate (603); a rotating plate (605) is rotatably connected to a side of the L-plate (604) close to the arc-shaped groove; an insertion rod is fixedly connected to a side of the rotating plate (605) close to the arc-shaped groove; a side of the insertion rod away from the rotating plate (605) is slidably connected to the inside of the arc-shaped groove; a flexible belt (606) is fixedly connected between the two rotating plates (605); and a plurality of circular holes are provided on the side wall of the elastic plate (603).

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