CN118513006A - Stirring reaction kettle for polyester resin production reaction - Google Patents

Abstract

The invention provides a stirring reaction kettle for polyester resin production reaction, which comprises a kettle body, wherein an access door is embedded in the side surface of the top of the kettle body, and a feeding pipe vertically penetrates through the top of the kettle body; a central shaft assembly is arranged at the central axis of the inner part of the kettle body; the outer wall of the middle shaft tube is provided with a self-cleaning assembly, the top of the self-cleaning assembly is provided with an agitating assembly, the outer part of the middle shaft tube is concentrically provided with a main gear ring, and the main gear ring is arranged on the outer side of the agitating assembly; the outer wall of the middle shaft tube is provided with an outward movement driving component which is connected with the top end of the stirring component; an exhaust joint is arranged at the position of the outer wall of the middle shaft tube opposite to the stirring assembly. The self-cleaning assembly can vertically scrape attachments on the outer wall of the stirring plate, then transversely push the attachments into the middle shaft tube, and the helical blades can convey cleaned deposits upwards, so that the attachments of the stirring assembly can be automatically moved outwards, the cleaning frequency of workers is reduced, and the deposits moved outwards to the main box body can be pumped out through the negative pressure of the material pumping pump.

Description

A stirred reactor for polyester resin production reaction

Technical Field

The invention relates to the technical field of polyester resin production reactors, in particular to a stirring reactor for polyester resin production reactions.

Background Art

Polyester resins are mainly divided into saturated polyester resins and unsaturated polyester resins. The production process of polyester resins mainly includes the following steps: Synthesis of polyols and polyacids: polycondensation of polyols and polyacids under the action of catalysts to generate polyester resins;

When polyester resin is produced by reaction, the first prepared material is in the form of slurry with a certain consistency, which causes residues to adhere to the stirring rod in the reactor. Over time, the stirring effect of the stirring rod will be affected, and the adhesion of particles will become more and more serious. At this time, it is necessary to manually enter the reactor through a ladder to flush it, which takes a long time to repair and affect the continuity of production;

Therefore, there is a need for a stirred reactor for polyester resin production reaction that can quickly clean the stirring components and improve maintenance efficiency.

Summary of the invention

In view of the deficiencies in the prior art, the present invention provides a stirred reactor for polyester resin production reaction, which solves the problems mentioned in the background technology.

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

A stirring reactor for polyester resin production reaction, comprising a reactor body, an inspection door is embedded in the top side of the reactor body, and a feeding pipe is vertically penetrated through the top of the reactor body; a central axis assembly is installed at the inner central axis of the reactor body, and the central axis assembly includes a central axis tube, a spiral blade, and a three-way joint; the central axis tube is rotatably arranged in the middle of the reactor body, the top end of the central axis tube protrudes outward from the top surface of the reactor body, and the spiral blade is installed inside the central axis tube. The top end of the central axis tube is rotatably connected to a main box body, the central axis tube is communicated with the main box body, the side of the main box body is connected to the three-way joint, the three-way joint is connected in parallel to the air supply main engine and the material pump, a first gear is arranged at the top end of the outer wall of the central axis tube, the first gear is meshed and connected to a first motor, the top end of the spiral blade is connected to a second gear, the second gear is arranged at the top of the main box body, and the second gear is transmission-connected to the second motor;

The outer wall of the central axis tube is provided with a self-cleaning component, the top of the self-cleaning component is provided with a stirring component, the outside of the central axis tube is provided with a main gear ring concentrically, and the main gear ring is provided on the outside of the stirring component; the outer wall of the central axis tube is provided with an outward moving drive component, and the outward moving drive component is connected to the top of the stirring component; an exhaust joint is provided at a relative position between the outer wall of the central axis tube and the stirring component;

The stirred tank reactor includes the following production steps:

S1. Feed the reaction raw materials through the feeding pipe; the self-cleaning component is in a closed state, the outward drive component drives the stirring component to move outward and engage with the main gear ring, and the stirring component is adjusted to an expanded state;

S2, the middle axis tube rotates to drive the stirring assembly to revolve, and at the same time, the main gear ring drives the stirring assembly to rotate;

S3, the outward drive assembly drives the stirring assembly inward, so that the stirring assembly is separated from the main gear ring and docked with the exhaust joint;

S4, the stirring component only rotates to stir the material, and the air supply main unit inputs gas to the exhaust joint, so that the stirring component is in a high temperature state to fully heat the material in the kettle;

S5, outputting the produced polyester resin slurry;

S6. The stirring component is adjusted to a closed state, and the self-cleaning component cleans the deposits on the material-facing surface of the stirring component, and the deposits are discharged through the spiral blades.

Furthermore, the outward moving drive assembly includes a first driving rod, a movable ring plate, a driving arm and a translation plate. An upper base is vertically provided on the top of the side wall of the central axis tube, and a movable groove is opened inside the upper base. The top of the stirring assembly slides horizontally and is embedded in the movable groove. A movable ring plate is vertically slidably installed on the outer wall of the central axis tube. The movable ring plate is arranged on the top of the upper base. The first driving rod is symmetrically provided on the surface of the movable ring plate. The first driving rod is fixedly connected to the kettle body. The driving arm is arranged obliquely. The top of the driving arm is hinged to the side wall of the movable ring plate and the bottom end is hinged to the translation plate. The translation plate is arranged on the top of the stirring assembly.

Furthermore, the stirring assembly includes a stirring plate, a main slider, and a self-rotating gear. The main slider slides horizontally and is embedded in the movable groove. The internal rotation of the main slider is penetrated by the self-rotating gear. The bottom end of the self-rotating gear is connected to the top plate. The bottom surface of the top plate is connected to the outer box body at intervals. The outer box body is arranged at parallel intervals at the bottom of the top plate. The internal rotation of the outer box body is provided with a rotating tube arranged in a linear array. The outer wall of the rotating tube is provided with a fourth gear. The fourth gear is arranged between the top plate and the outer box body. The top sliding of the outer box body is provided with a driving rack. The driving rack is meshed with each fourth gear. The side wall of the top plate is provided with a second driving rod. The output end of the second driving rod is connected to the driving rack. A group of stirring plates is provided at the bottom of each rotating tube.

Furthermore, an air inlet hole is opened on the outer wall of the rotating tube, and the air inlet hole is located in the outer box body, and the end of the outer box body is plugged into the exhaust joint; in S4, the gas entering the central axis tube is transported to the exhaust joint along the spiral channel of the spiral blade, and the gas then enters each stirring plate through the outer box body and the air inlet hole, so that the stirring plate is in a high temperature state.

Furthermore, a pressure block is provided at one end of the translation plate and a latching tooth is provided at the other end, a side block body is provided at one end of the surface of the main slider, a third spring rod is provided between the side block body and the pressure block, and the latching tooth is engaged with the self-rotating gear;

In S1, when the translation plate moves outward once, the translation plate and the main slider move synchronously until the self-rotating gear meshes with the main gear ring; when the translation plate moves outward for the second time, the main gear ring contacts the self-rotating gear, the side block compresses the third spring rod, and the latching tooth disengages from the self-rotating gear, so that the self-rotating gear can rotate along the main gear ring.

Furthermore, the self-cleaning component includes a lower base and a pushing block. The lower base is vertically arranged on the bottom end side wall of the central axis tube. An independent waste trough and a storage trough are opened at the bottom of the lower base. The waste trough is horizontally arranged above the storage trough. The inner end of the waste trough is connected to the central axis tube. An upper cleaning block is slidably provided inside the waste trough. A first reciprocating screw is installed inside the storage trough. The inner end of the first reciprocating screw extends into the central axis tube and is provided with a second bevel gear. The bottom end of the spiral blade is provided with a first bevel gear, and the first bevel gear is meshed with the second gear. The outer wall of the first reciprocating screw is covered with a moving block, and the upper cleaning block and the moving block are connected as a whole through the pushing block.

Furthermore, the self-cleaning assembly also includes a vertical frame body and a cleaning brush plate. The vertical frame body is vertically arranged at the inner end of the surface of the lower base. A second reciprocating screw is installed inside the vertical frame body. The outer wall of the second reciprocating screw is sleeved with a cleaning brush plate. The cleaning brush plate is horizontally arranged and placed on the side of the material-facing surface of each stirring plate. An active tooth column is arranged on the outer wall of the first reciprocating screw. The bottom end of the second reciprocating screw extends into the storage tank and a driven gear is arranged at the end. The active tooth column is meshed and connected with the driven gear.

In S1, the upper cleaning block blocks the outlet of the waste tank to prevent the liquid from entering the central axis tube, and the cleaning brush plate is placed on the side of the lower base to avoid the stirring plate;

In S6, when the spiral blade rotates, the first reciprocating screw and the second reciprocating screw are synchronously driven to rotate; the cleaning brush plate moves vertically to scrape impurities from the outer wall of the stirring plate into the waste trough; the upper cleaning block pushes the waste in the waste trough into the spiral blade, and the waste is then output upward into the outer box body through the spiral blade.

Furthermore, a standing platform is provided on the inner top of the kettle body, and the standing platform is located at the inner bottom of the inspection door; a maintenance ladder storage assembly is installed on the surface of the standing platform, and the maintenance ladder storage assembly includes a bracket, the top end of the bracket is connected to the winding wheel, the winding wheel is located on the inner side of the standing platform, a soft ladder is wrapped around the outer wall of the winding wheel, a locking gear is provided at the side shaft of the winding wheel, a handle is provided on the outer wall of the locking gear, and a linkage unlocking assembly and a locking assembly are provided on the side wall of the bracket, the outer end of the linkage unlocking assembly is in contact with the inspection door, and the inner end is connected to the locking assembly; when the inspection door is opened, the linkage unlocking assembly and the locking assembly are linked to act, so that the locking assembly is unlocked, and the winding wheel automatically releases the soft ladder.

Furthermore, the linkage unlocking assembly includes an unlocking rod, a second positioning frame, a second spring rod and a contact plate. The second positioning frame is fixedly mounted on the side wall of the bracket. The unlocking rod is horizontally slidably penetrated inside the second positioning frame. The outer end of the unlocking rod cooperates and contacts with the inspection door. A storage groove is provided at the inner end of the unlocking rod. A contact plate is rotatably installed inside the storage groove and a torsion spring is installed at the rotating connection. The torsion spring is used to drive the contact plate to rotate downward. A second convex plate is vertically provided on the bottom surface of the unlocking rod. The second convex plate is located on the inner side of the second positioning frame. A second spring rod is installed between the second convex plate and the second positioning frame. When the inspection door is closed, the unlocking rod moves inward and lengthens the second spring rod.

Further, the locking assembly includes a first positioning frame, the first positioning frame is fixed to the side wall of the bracket, the interior of the first positioning frame horizontally slides through the locking rod, the outer end surface of the locking rod is provided with a matching block, the outer wall of the locking rod is provided with a first convex plate, the first convex plate is located on the outer side of the first positioning frame, a first spring rod is installed between the first convex plate and the first positioning frame, the inner end of the locking rod is provided with a constraint block, the constraint block cooperates with the first positioning frame to stop, the inner end of the constraint block is provided with a plug column, and the plug column is inserted into the locking gear;

When the locking assembly is unlocked, the contact plate contacts the constraint block and the locking rod moves outward, driving the plug column to leave the locking gear, and the first spring rod is stretched by the locking rod;

When the locking assembly is locked, the upper resisting plate rotates into the receiving groove, and the first spring rod drives the locking rod to reset the positioning locking gear.

The present invention provides a stirred reactor for polyester resin production reaction. Compared with the prior art, it has the following beneficial effects:

1. The setting of the central axis component can achieve the following effects: the first motor can drive the first gear to rotate, thereby driving the central axis tube to rotate, and the central axis tube can drive the stirring component to revolve; a spiral blade is set inside the central axis tube, and the second motor can drive the second gear to rotate, thereby rotating the spiral blade, and the spiral blade can transport the cleaned deposits upward, so that the attachments of the stirring component can be automatically moved outward, reducing the cleaning frequency of workers, and the deposits moved outward to the main box body can be extracted by the negative pressure of the extraction pump; at the same time, the main box body can also be directly cleaned from the outside manually;

2. The setting of the stirring component can achieve the following effects: the stirring component can be moved outward to mesh with the main gear ring, so that in the early stage of material mixing, the stirring component can both revolve and rotate, so as to effectively improve the mixing efficiency in the early stage and ensure the mixing effect; the stirring component can be moved inward to dock with the exhaust joint, so that in the middle and late stages of material mixing, the stirring component only revolves to achieve uniform mixing, and at the same time the exhaust joint can discharge hot air to the stirring component, so that the entire stirring component is in a high temperature state, and the liquid can be fully heated from the inside to ensure that the liquid is at the specified reaction temperature; in the reaction stage, the stirring plates of the stirring component are rotated to an inclined state, and the entire stirring component is in an unfolded state, so as to ensure that the stirring plates can stir normally and the liquid can pass through the gaps between the stirring plates; at the end of the reaction, when the polyester resin slurry is discharged, the stirring plates are rotated and reset, so that the stirring plates are reset to a plane, so that the self-cleaning component can work and clean, remove the attachments on the stirring plates, and ensure the working effect of the stirring plates;

3. The self-cleaning component can vertically scrape off the attachments on the outer wall of the stirring plate, and then push the attachments horizontally into the central axis tube.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 shows a schematic structural diagram of a stirred reactor for polyester resin production reaction of the present invention;

FIG2 shows a schematic diagram of the internal structure of a reactor of the present invention;

FIG3 shows a schematic diagram of the top structure of the reactor of the present invention;

FIG4 shows a schematic diagram of the internal top structure of the mid-axis tube of the present invention;

FIG5 shows a schematic structural diagram of a maintenance ladder storage assembly according to the present invention;

FIG6 shows a schematic structural diagram of a linkage unlocking assembly of the present invention;

FIG7 shows a schematic structural diagram of a locking assembly of the present invention;

FIG8 is a schematic diagram showing the structure of the access door of the present invention in an open and unlocked state;

FIG9 is a schematic diagram showing the structure of the resistance plate in a state of being rotated and ready to be locked according to the present invention;

FIG10 is a schematic structural diagram showing a locking state reset state of the locking assembly of the present invention;

FIG11 is a schematic structural diagram of a stirring assembly in a closed state of the present invention;

FIG12 shows a schematic diagram of the side cross-sectional structure of the outward moving drive assembly of the present invention;

FIG13 is a schematic diagram showing the connection structure between the stirring assembly and the outward moving driving assembly of the present invention;

FIG14 shows a schematic structural diagram of a self-cleaning assembly of the present invention;

FIG15 is a schematic diagram showing the unfolded structure of the stirring assembly of the present invention;

As shown in the figure: 1. Kettle body, 11. Inspection door, 12. Feeding pipe, 13. Standing ring platform, 2. Central axis assembly, 21. Central axis tube, 211. First gear, 212. Exhaust joint, 213. Upper base, 2131. Moving groove, 22. Spiral blade, 221. Second gear, 222. First bevel gear, 23. Three-way joint, 24. First motor, 25. Main box body, 26. Second motor, 3. Main gear ring, 4. Outward drive Components, 41, first drive rod, 42, movable ring plate, 43, drive arm, 44, translation plate, 441, pressure block, 442, latching teeth, 5, suction pump, 6, self-cleaning component, 62, vertical frame, 621, first reciprocating screw rod, 6211, driven gear, 63, lower base, 631, waste trough, 632, storage tank, 64, push block, 641, upper cleaning block, 642, moving block, 65, cleaning brush plate, 61, second Reciprocating screw, 611, active gear column, 612, second bevel gear, 7, maintenance ladder storage assembly, 71, winding wheel, 72, soft ladder, 73, locking gear, 731, handle, 74, locking assembly, 741, locking rod, 7411, first convex plate, 742, matching block, 743, first spring rod, 744, first positioning frame, 745, constraint block, 746, plug column, 75, linkage unlocking assembly, 751, unlocking rod, 75 11. Storage groove, 7512. Second convex plate, 752. Second positioning frame, 753. Second spring rod, 754. Resistance plate, 76. Bracket, 8. Stirring assembly, 81. Stirring plate, 82. Rotating tube, 821. Fourth gear, 83. Outer box body, 84. Driving rack, 841. Second driving rod, 85. Top plate, 86. Main slider, 861. Side block body, 87. Self-rotating gear, 88. Third spring rod, 9. Air supply main unit.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are 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.

Embodiment 1

In order to solve the technical problems in the background technology, a stirred reactor for polyester resin production reaction is provided as follows:

As shown in Figures 1 to 15, the present invention provides a stirred reactor for polyester resin production reaction, including a reactor body 1, an inspection door 11 is embedded in the top side of the reactor body 1, and a feeding pipe 12 is vertically penetrated through the top of the reactor body 1; a central axis assembly 2 is installed at the inner central axis of the reactor body 1, and the central axis assembly 2 includes a central axis tube 21, a spiral blade 22, and a three-way joint 23; the central axis tube 21 is rotatably arranged in the middle of the reactor body 1, and the top end of the central axis tube 21 protrudes from the top surface of the reactor body 1, and the inner part of the central axis tube 21 is installed with The spiral blade 22 and the top of the central axis tube 21 are rotatably connected to the main box body 25, the central axis tube 21 is connected to the main box body 25, the side of the main box body 25 is connected to the three-way joint, the three-way joint is connected in parallel to the air supply main unit 9 and the material pump 5, the top of the outer wall of the central axis tube 21 is provided with a first gear 211, the first gear 211 is meshed and connected to the first motor 24, the top of the spiral blade 22 is connected to the second gear 221, the second gear 221 is provided at the top of the main box body 25, and the second gear 221 is transmission-connected to the second motor 26;

The outer wall of the central axis tube 21 is provided with a self-cleaning component 6, and the top of the self-cleaning component 6 is provided with a stirring component 8. The outer part of the central axis tube 21 is provided with a main gear ring concentrically, and the main gear ring is provided on the outside of the stirring component 8; the outer wall of the central axis tube 21 is provided with an outward moving driving component 4, and the outward moving driving component 4 is connected to the top of the stirring component 8; the outer wall of the central axis tube 21 is provided with an exhaust joint 212 at a position relative to the stirring component 8;

The stirred tank reactor includes the following production steps:

S1, the self-cleaning component 6 is in a closed state, the outward drive component 4 drives the stirring component 8 to move outward and engage with the main gear ring 3, and the stirring component 8 is adjusted to an extended state; the reaction raw materials include propylene glycol, trihydroxymethyl propane, ethylene glycol acetate and p-hydroxybenzoic acid;

S2, the central axis tube 21 rotates to drive the stirring assembly 8 to revolve, and at the same time, the main gear ring 3 drives the stirring assembly 8 to rotate;

S3, the outward-moving driving assembly 4 drives the stirring assembly inward, so that the stirring assembly 8 is separated from the main gear ring 3 and docked with the exhaust joint 212;

S4, the stirring component 8 only rotates to stir the material, and the air supply main unit inputs gas to the exhaust joint 212, so that the stirring component 8 is in a high temperature state to fully heat the material in the kettle;

S5, outputting the produced polyester resin slurry; the polyester resin slurry is subsequently subjected to dehydration condensation reaction, polycondensation reaction, filtration and cooling treatment to obtain a polyester resin finished product;

S6, the stirring component 8 is adjusted to a closed state, and the self-cleaning component 6 cleans the deposits on the material-facing surface of the stirring component 8, and the deposits are discharged through the spiral blades 22.

In the above scheme:

1. The setting of the middle axis component can achieve the following effects:

1.1. The first motor can drive the first gear to rotate, thereby driving the central axis tube to rotate, and the central axis tube can drive the stirring assembly to revolve;

1.2. A spiral blade is arranged inside the central axis tube, and the second motor can drive the second gear to rotate, thereby rotating the spiral blade, and the spiral blade can transport the cleaned deposits upward, so that the attachments of the stirring component can be automatically moved outward, reducing the cleaning frequency of workers, and the deposits moved outward to the main box body can be pumped out by the negative pressure of the pumping pump; at the same time, the main box body can also be cleaned directly from the outside manually;

2. The setting of the stirring component can achieve the following effects:

2.1. The stirring assembly can be moved outward to mesh with the main gear ring. In this way, in the early stage of material mixing, the stirring assembly can both revolve and rotate, which effectively improves the mixing efficiency in the early stage and ensures the mixing effect;

2.2. The stirring assembly can be moved inward and docked with the exhaust joint. In this way, in the middle and late stages of material mixing, the stirring assembly only orbits to achieve uniform mixing. At the same time, the exhaust joint can discharge hot air to the stirring assembly, so that the entire stirring assembly is in a high temperature state, which can fully heat the liquid from the inside to ensure that the liquid is at the specified reaction temperature;

2.3. During the reaction stage, each stirring plate of the stirring assembly rotates to an inclined state, and the entire stirring assembly is in an unfolded state, ensuring that the stirring plates can stir normally and the liquid can pass through the gaps between the stirring plates;

2.4. When the reaction is finished and the polyester resin slurry is discharged, each stirring plate is rotated and reset to a plane, so that the self-cleaning component can work and clean, remove the attachments on the stirring plate, and ensure the working effect of the stirring plate;

3. The self-cleaning component can vertically scrape off the attachments on the outer wall of the stirring plate, and then push the attachments horizontally into the central axis tube.

In this embodiment, the outward moving drive assembly 4 includes a first driving rod 41, a movable ring plate 42, a driving arm 43 and a translation plate 44. An upper base 213 is vertically provided on the top of the side wall of the central axis tube 21. A movable groove 2131 is opened inside the upper base 213. The top of the stirring assembly 8 slides horizontally and is embedded in the movable groove 2131. The outer wall of the central axis tube 21 is vertically slidably installed with a movable ring plate 42. The movable ring plate 42 is arranged on the top of the upper base 213. The surface of the movable ring plate 42 is symmetrically provided with a first driving rod 41. The first driving rod 41 is fixedly connected to the kettle body 1. The driving arm 43 is arranged obliquely. The top of the driving arm 43 is hinged to the side wall of the movable ring plate 42, and the bottom end is hinged to the translation plate 44. The translation plate 44 is arranged at the top of the stirring assembly 8.

In the above scheme: the first driving rod can drive the movable ring plate to move downward along the central axis tube. When the movable ring plate moves downward, the movable ring plate pushes the driving arm to extend outward, and the driving arm can drive the stirring assembly and the translation plate to move outward along the movable groove synchronously.

In this embodiment, the stirring assembly 8 includes a stirring plate 81, a main slider 86, and a self-rotating gear 87. The main slider 86 slides horizontally and is embedded in the moving groove 2131. The internal rotation of the main slider 86 runs through the self-rotating gear 87. The bottom end of the self-rotating gear 87 is connected to the top plate 85. The bottom surface of the top plate 85 is connected to the outer box body 83 at intervals. The outer box body 83 is arranged at parallel intervals at the bottom of the top plate 85. The internal rotation of the outer box body 83 is provided with a rotating tube 82 arranged in a linear array. The outer wall of the rotating tube 82 is provided with a fourth gear 821. The fourth gear 821 is arranged between the top plate 85 and the outer box body 83. The top of the outer box body 83 is slidably provided with a driving rack 84. The driving rack 84 is meshed and connected with each fourth gear 821. The side wall of the top plate 85 is provided with a second driving rod 841. The output end of the second driving rod 841 is connected to the driving rack 84; a group of stirring plates 81 is provided at the bottom of each rotating tube 82.

In the above scheme:

The main slider serves as the suspension positioning structure of the entire stirring assembly, and moves with the translation plate; when the main slider moves outward, it drives the top plate, the outer box body and each stirring plate to move as a whole, so that the self-rotating gear meshes with the main gear ring;

2. The second driving rod can push the driving rack to translate, and the driving rack can drive each fourth gear to rotate, thereby driving each rotating tube to rotate at the same time, and the rotating tube can drive the stirring plate to rotate, thereby realizing the regulation of the closing and unfolding of the stirring plate.

In this embodiment, an air inlet hole is opened on the outer wall of the rotating tube 82, and the air inlet hole is located in the outer box body 83, and the end of the outer box body 83 is plugged into the exhaust joint 212; in S4, the gas entering the central axis tube 21 is transported to the exhaust joint 212 along the spiral channel of the spiral blade 22, and the gas then enters each stirring plate 81 through the outer box body 83 and the air inlet hole, so that the stirring plate is in a high temperature state.

In the above scheme: the spiral blades can serve as a pushing structure for the materials when cleaning them, and during the reaction, the three-way joint is adjusted to be connected to the air supply main unit, and the hot air can enter the exhaust joint along the spiral channel formed by the spiral blades, so that the hot air can enter each stirring plate through the exhaust joint to heat the stirring plate. At the same time, the hot air will also fill the entire central axis tube, so that the central axis tube is also heated, and the central axis tube and the stirring plate can jointly heat the liquid from the inside.

In this embodiment, a pressure block 441 is provided at one end of the translation plate 44 and a latching tooth 442 is provided at the other end. A side block body 861 is provided at one end of the surface of the main slider 86. A third spring rod 88 is provided between the side block body 861 and the pressure block 441, and the latching tooth 442 is engaged with the self-rotating gear 87. In S1, when the translation plate 44 moves outward for the first time, the translation plate 44 moves synchronously with the main slider 86 until the self-rotating gear 87 is engaged with the main gear ring 3. When the translation plate 44 moves outward for the second time, the main gear ring 3 contacts the self-rotating gear 87, the side block body 861 compresses the third spring rod 88, and the latching tooth 442 disengages from the self-rotating gear 87, so that the self-rotating gear 87 can rotate along the main gear ring 3.

In the above scheme:

The setting of the latch teeth can constrain the positioning self-rotating gear to prevent the stirring component from rotating in S4;

The separation of the latching tooth and the self-rotating gear is controlled by the interference of the main gear ring and does not require separate control. When the self-rotating gear is meshed with the main gear ring, the first driving rod continues to push the driving arm downward, and the translation plate moves outward for the second time. In this way, the side block can compress the third spring rod, and the latching tooth can automatically separate from the self-rotating gear. When the first driving rod is retracted, the third spring rod pushes the translation plate to reset, and the latching tooth engages the self-rotating gear. When the first driving rod continues to be retracted, the self-rotating gear disengages from the main gear ring, and the main slider moves inward along the moving groove to reset.

In this embodiment, the self-cleaning component 6 includes a lower base 63 and a pushing block 64. The lower base 63 is vertically arranged on the bottom side wall of the central axis tube 21. An independent waste groove 631 and a storage groove 632 are opened at the bottom of the lower base 63. The waste groove 631 is horizontally arranged above the storage groove 632. The inner end of the waste groove 631 is connected to the central axis tube 21. An upper cleaning block 641 is slidably provided inside the waste groove 631. A first reciprocating screw rod 621 is installed inside the storage groove 632. The inner end of the first reciprocating screw rod 621 extends into the central axis tube 21 and is provided with a second bevel gear 612. The bottom end of the spiral blade 22 is provided with a first bevel gear 222, and the first bevel gear 222 is meshed with the second gear 221. The outer wall of the first reciprocating screw rod 621 is provided with a moving block 642. The upper cleaning block 641 and the moving block 642 are connected as a whole through the pushing block 64.

In the above scheme: the spiral blade rotates, and the first reciprocating screw can be driven to rotate through the cooperation of the first bevel gear and the second bevel gear, which can drive the moving block to translate, and the upper cleaning block can be driven to follow the movement through the pushing block. The upper cleaning block can translate and push out the material in the waste trough, so that the material enters the central axis tube; the automatic cleaning of the material is realized, and the movement of the upper cleaning block does not need to be independently controlled.

In this embodiment, the self-cleaning assembly 6 further includes a vertical frame body 62 and a cleaning brush plate 65. The vertical frame body 62 is vertically arranged on the inner end of the surface of the lower base 63. A second reciprocating screw rod 61 is installed inside the vertical frame body 62. The outer wall of the second reciprocating screw rod 61 is sleeved with a cleaning brush plate 65. The cleaning brush plate 65 is horizontally arranged and placed on the side of the material-facing surface of each stirring plate 81. The outer wall of the first reciprocating screw rod 621 is provided with a driving gear column 611. The bottom end of the second reciprocating screw rod 61 extends into the storage groove 632 and the end is provided with a driven gear 6211. The driving gear column 611 is meshed and connected with the driven gear 6211.

In S1, the upper cleaning block blocks the outlet of the waste tank 631 to prevent the liquid from entering the central axis tube 21, and the cleaning brush plate 65 is placed on the side of the lower base 63 to avoid the stirring plate 81;

At S6, when the spiral blade 22 rotates, the first reciprocating screw 621 and the second reciprocating screw 61 are synchronously driven to rotate; the cleaning brush plate 65 moves vertically to scrape impurities on the outer wall of the stirring plate 81 into the waste trough 631; the upper cleaning block 641 pushes the waste in the waste trough 631 into the spiral blade 22, and the waste is then output upward to the outer box body 83 through the spiral blade 22.

In the above scheme:

The vertical movement of the cleaning brush plate can fully clean the attachments on the material-facing surface of the stirring plate to ensure the stirring effect of the stirring plate;

2. The movements of the first reciprocating screw and the second reciprocating screw do not need to be independently controlled, and are both driven by the second bevel gear of the spiral blade.

Embodiment 2

In this embodiment, a standing platform 13 is provided on the inner top of the kettle body 1, and the standing platform 13 is located at the inner bottom of the inspection door 11; a maintenance ladder storage assembly 7 is installed on the surface of the standing platform 13, and the maintenance ladder storage assembly 7 includes a bracket 76, the top of the bracket 76 is connected to the winding wheel 71, the winding wheel 71 is located on the inner side of the standing platform 13, and the outer wall of the winding wheel 71 is wrapped with a soft ladder 72, and a locking gear 73 is provided at the side shaft of the winding wheel 71, and a handle 731 is provided on the outer wall of the locking gear 73, and a linkage unlocking assembly 75 and a locking assembly 74 are provided on the side wall of the bracket 76, and the outer end of the linkage unlocking assembly 75 contacts the inspection door 11, and the inner end is connected to the locking assembly 74; when the inspection door 11 is opened, the linkage unlocking assembly 75 and the locking assembly 74 are linked to act, so that the locking assembly 74 is unlocked, and the winding wheel 71 automatically releases the soft ladder 72.

In the above scheme: the design of the standing ring platform and the soft ladder makes it easy for workers to enter the kettle for maintenance, improves the maintenance efficiency, and does not require the construction of a ladder frame; when the maintenance door is opened, the locking gear can be automatically unlocked, so that the soft ladder is automatically released, further improving the maintenance efficiency.

In this embodiment, the linkage unlocking assembly 75 includes an unlocking rod 751, a second positioning frame 752, a second spring rod 753 and a contact plate 754. The second positioning frame 752 is fixed to the side wall of the bracket 76. The unlocking rod 751 is horizontally slidably penetrated inside the second positioning frame 752. The outer end of the unlocking rod 751 cooperates with the inspection door 11. A receiving groove 7511 is provided at the inner end of the unlocking rod 751. The contact plate 754 is rotatably installed inside the storage groove 7511, and a torsion spring is installed at the rotating connection. The torsion spring is used to drive the contact plate 754 to rotate downward; a second convex plate 7512 is vertically provided on the bottom surface of the unlocking rod 751, and the second convex plate 7512 is located on the inner side of the second positioning frame 752. A second spring rod 753 is installed between the second convex plate 7512 and the second positioning frame 752; when the inspection door 11 is closed, the unlocking rod 751 moves inward and stretches the second spring rod 753.

In this embodiment, the locking assembly 74 includes a first positioning frame 744, which is fixed to the side wall of the bracket 76. The interior of the first positioning frame 744 slides horizontally through the locking rod 741. The outer end surface of the locking rod 741 is provided with a matching block 742. The outer wall of the locking rod 741 is provided with a first convex plate 7411. The first convex plate 7411 is located on the outer side of the first positioning frame 744. A first spring rod 743 is installed between the first convex plate 7411 and the first positioning frame 744. A constraint block 745 is provided at the inner end of the locking rod 741. The constraint block 745 cooperates with the first positioning frame 744 to stop. The inner end of the constraint block 745 is provided with a plug column 746, which is inserted into the locking gear 73.

When this embodiment is working:

When the kettle needs to be repaired, the worker turns the door downward to open it. The second spring rod resets and drives the unlocking rod and the contact plate to move outward. The contact plate contacts the constraint block and the locking rod to move outward, driving the plug column to leave the locking gear. The first spring rod is stretched by the locking rod, and the ladder can be automatically released.

Workers enter the kettle, stand on the standing platform for inspection, and then enter the bottom of the kettle through the ladder to inspect the bottom of the kettle and the bottom of the stirring assembly;

After the inspection is completed, the worker stands on the standing ring platform and manually turns the handle to drive the soft ladder to reel onto the reel; then, the contact plate is pushed up. During the pushing process, the contact plate contacts the constraint block and the locking rod and continues to move outward. When the contact plate is rotated into the storage slot, the first spring rod drives the locking rod to reset the positioning locking gear;

Then the worker comes out of the kettle and closes the inspection door. The inspection door resists the unlocking rod and moves inward. The unlocking rod lengthens the second spring rod. When the contact plate passes over the constraint block, the torsion spring drives the contact plate to rotate downward and reset. The contact plate is placed on the inner side of the constraint block, realizing the reset of the contact plate for automatic unlocking next time.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

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 the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A stirring reactor for polyester resin production reaction, characterized in that: it comprises a reactor body, an inspection door is embedded in the top side of the reactor body, and a feeding pipe is vertically penetrated through the top of the reactor body; a central axis assembly is installed at the inner central axis of the reactor body, and the central axis assembly includes a central axis tube, a spiral blade, and a three-way joint; the central axis tube is rotatably arranged in the middle of the reactor body, the top end of the central axis tube protrudes outward from the top surface of the reactor body, and a spiral blade is installed inside the central axis tube. The top end of the central axis tube is rotatably connected to the main box body, the central axis tube is communicated with the main box body, the side of the main box body is connected to the three-way joint, the three-way joint is connected in parallel to the air supply main engine and the pumping pump, the top end of the outer wall of the central axis tube is provided with a first gear, the first gear is meshed and connected to the first motor, the top end of the spiral blade is connected to the second gear, the second gear is arranged at the top of the main box body, and the second gear is transmission-connected to the second motor; The outer wall of the central axis tube is provided with a self-cleaning component, the top of the self-cleaning component is provided with a stirring component, the outside of the central axis tube is provided with a main gear ring concentrically, and the main gear ring is provided on the outside of the stirring component; the outer wall of the central axis tube is provided with an outward moving drive component, and the outward moving drive component is connected to the top of the stirring component; an exhaust joint is provided at a relative position between the outer wall of the central axis tube and the stirring component; The stirred tank reactor includes the following production steps: S1. Feed the reaction raw materials through the feeding pipe; the self-cleaning component is in a closed state, the outward drive component drives the stirring component to move outward and engage with the main gear ring, and the stirring component is adjusted to an expanded state; S2, the middle axis tube rotates to drive the stirring assembly to revolve, and at the same time, the main gear ring drives the stirring assembly to rotate; S3, the outward drive assembly drives the stirring assembly inward, so that the stirring assembly is separated from the main gear ring and docked with the exhaust joint; S4, the stirring component only rotates to stir the material, and the air supply main unit inputs gas to the exhaust joint, so that the stirring component is in a high temperature state to fully heat the material in the kettle; S5, outputting the produced polyester resin slurry; S6. The stirring component is adjusted to a closed state, and the self-cleaning component cleans the deposits on the material-facing surface of the stirring component, and the deposits are discharged through the spiral blades. 2. A stirred reactor for polyester resin production reaction according to claim 1, characterized in that: the outward moving drive assembly includes a first driving rod, a movable ring plate, a driving arm and a translation plate, an upper base is vertically provided on the top of the side wall of the central axis tube, a movable groove is opened inside the upper base, the top of the stirring assembly slides horizontally and is embedded in the movable groove, a movable ring plate is vertically slidably installed on the outer wall of the central axis tube, the movable ring plate is arranged on the top of the upper base, the first driving rod is symmetrically provided on the surface of the movable ring plate, the first driving rod is fixedly connected to the reactor body, the driving arm is arranged obliquely, the top of the driving arm is hinged to the side wall of the movable ring plate, and the bottom end is hinged to the translation plate, and the translation plate is arranged on the top of the stirring assembly. 3. A stirred reactor for polyester resin production reaction according to claim 2, characterized in that: the stirring assembly includes a stirring plate, a main slider, and a self-rotating gear. The main slider slides horizontally and is embedded in the movable groove. The internal rotation of the main slider runs through the self-rotating gear. The bottom end of the self-rotating gear is connected to the top plate. The bottom surface of the top plate is connected to the outer box body at intervals. The outer box body is arranged at parallel intervals at the bottom of the top plate. The internal rotation of the outer box body is provided with a rotating tube arranged in a linear array. The outer wall of the rotating tube is provided with a fourth gear. The fourth gear is arranged between the top plate and the outer box body. The top of the outer box body is slidably provided with a driving rack, and the driving rack is meshed with each fourth gear. The side wall of the top plate is provided with a second driving rod, and the output end of the second driving rod is connected to the driving rack; a group of stirring plates is provided at the bottom end of each rotating tube. 4. A stirred reactor for polyester resin production reaction according to claim 3, characterized in that: an air inlet hole is opened on the outer wall of the rotating tube, the air inlet hole is located in the outer box body, and the end of the outer box body is plugged into the exhaust joint; in S4, the gas entering the central axis tube is transported to the exhaust joint along the spiral channel of the spiral blade, and the gas then enters each stirring plate through the outer box body and the air inlet hole, so that the stirring plate is in a high temperature state. 5. A stirred reactor for polyester resin production reaction according to claim 4, characterized in that: a pressure block is provided at one end of the translation plate and a latching tooth is provided at the other end, a side block body is provided at one end of the surface of the main slider, a third spring rod is provided between the side block body and the pressure block, and the latching tooth is engaged with the self-rotating gear; In S1, when the translation plate moves outward once, the translation plate and the main slider move synchronously until the self-rotating gear meshes with the main gear ring; when the translation plate moves outward for the second time, the main gear ring contacts the self-rotating gear, the side block compresses the third spring rod, and the latching tooth disengages from the self-rotating gear, so that the self-rotating gear can rotate along the main gear ring. 6. A stirred reactor for polyester resin production reaction according to claim 5, characterized in that: the self-cleaning component includes a lower base and a pushing block, the lower base is vertically arranged on the bottom end side wall of the central axis tube, and an independent waste trough and storage trough are opened at the bottom of the lower base, the waste trough is horizontally arranged above the storage trough, the inner end of the waste trough is connected to the central axis tube, an upper cleaning block is slidably arranged inside the waste trough, a first reciprocating screw is installed inside the storage trough, the inner end of the first reciprocating screw extends into the central axis tube and is provided with a second bevel gear, the bottom end of the spiral blade is provided with a first bevel gear, the first bevel gear is meshed with the second gear, the outer wall of the first reciprocating screw is sleeved with a moving block, and the upper cleaning block and the moving block are connected as a whole through the pushing block. 7. A stirred reactor for polyester resin production reaction according to claim 6, characterized in that: the self-cleaning component also includes a vertical frame body and a cleaning brush plate, the vertical frame body is vertically arranged on the inner end of the surface of the lower base, a second reciprocating screw is installed inside the vertical frame body, the outer wall of the second reciprocating screw is sleeved with a cleaning brush plate, the cleaning brush plate is horizontally arranged and placed on the side of each stirring plate facing the material; the outer wall of the first reciprocating screw is provided with a driving gear column, the bottom end of the second reciprocating screw extends into the storage tank and the end is provided with a driven gear, the driving gear column is meshed and connected with the driven gear; In S1, the upper cleaning block blocks the outlet of the waste tank to prevent the liquid from entering the central axis tube, and the cleaning brush plate is placed on the side of the lower base to avoid the stirring plate; In S6, when the spiral blade rotates, the first reciprocating screw and the second reciprocating screw are synchronously driven to rotate; the cleaning brush plate moves vertically to scrape impurities from the outer wall of the stirring plate into the waste trough; the upper cleaning block pushes the waste in the waste trough into the spiral blade, and the waste is then output upward into the outer box body through the spiral blade. 8. A stirred reactor for polyester resin production reaction according to claim 7, characterized in that: a standing ring platform is provided on the internal top of the reactor body, and the standing ring platform is located at the inner bottom of the inspection door; a maintenance ladder storage assembly is installed on the surface of the standing ring platform, and the maintenance ladder storage assembly includes a bracket, the top end of the bracket is connected to the winding wheel, the winding wheel is located on the inner side of the standing ring platform, a soft ladder is wrapped around the outer wall of the winding wheel, a locking gear is provided at the side shaft of the winding wheel, a handle is provided on the outer wall of the locking gear, and a linkage unlocking assembly and a locking assembly are provided on the side wall of the bracket, the outer end of the linkage unlocking assembly is in contact with the inspection door, and the inner end is connected to the locking assembly; when the inspection door is opened, the linkage unlocking assembly and the locking assembly are linked to act, so that the locking assembly is unlocked, and the winding wheel automatically releases the soft ladder. 9. A stirred reactor for polyester resin production reaction according to claim 8, characterized in that: the linkage unlocking assembly includes an unlocking rod, a second positioning frame, a second spring rod and a contact plate, the second positioning frame is fixedly arranged on the side wall of the bracket, the second positioning frame has an unlocking rod slidingly penetrated inside the interior of the second positioning frame, the outer end of the unlocking rod cooperates and contacts with the inspection door, a receiving groove is provided at the inner end of the unlocking rod, a contact plate is rotatably installed inside the storage groove and a torsion spring is installed at the rotating connection, the torsion spring is used to drive the contact plate to rotate downward; a second convex plate is vertically provided on the bottom surface of the unlocking rod, the second convex plate is located on the inner side of the second positioning frame, and a second spring rod is installed between the second convex plate and the second positioning frame; when the inspection door is closed, the unlocking rod moves inward and stretches the second spring rod. 10. A stirred reactor for polyester resin production reaction according to claim 9, characterized in that: the locking assembly comprises a first positioning frame, the first positioning frame is fixedly arranged on the side wall of the bracket, the interior of the first positioning frame horizontally slides through the locking rod, the outer end surface of the locking rod is provided with a matching block, the outer wall of the locking rod is provided with a first convex plate, the first convex plate is located on the outer side of the first positioning frame, a first spring rod is installed between the first convex plate and the first positioning frame, the inner end of the locking rod is provided with a restraining block, the restraining block cooperates with the first positioning frame to stop, the inner end of the restraining block is provided with a plug column, and the plug column is inserted into the locking gear in a matching manner; When the locking assembly is unlocked, the contact plate contacts the constraint block and the locking rod moves outward, driving the plug column to leave the locking gear, and the first spring rod is stretched by the locking rod; When the locking assembly is locked, the upper contact plate rotates into the receiving groove, and the first spring rod drives the locking rod to reset the positioning locking gear.