Polyester resin synthesis reaction kettle

Abstract

The invention discloses a polyester resin synthesis reaction kettle, and particularly relates to the technical field of chemical engineering, the polyester resin synthesis reaction kettle comprises a reaction kettle body, a feeding mechanism is fixedly connected to the middle of the upper end of the reaction kettle body, and a first motor is fixedly connected to the side, away from the axis, of the upper portion of the outer arc face of the reaction kettle body; a sampling mechanism is fixedly connected to the middle of the front side of the outer arc surface of the reaction kettle body, a discharging pipe is fixedly connected to the lower part of the front side of the outer arc surface of the reaction kettle body, and a stirring assembly is fixedly connected to the bottom of an inner cavity of the reaction kettle body. The feeding mechanism disclosed by the invention can crush and refine blocky or large-particle materials, such as some solid catalysts and additives, entering the reaction kettle, so that the materials can be more uniformly dispersed in a reaction system when being subsequently mixed with other raw materials, and the effects of the materials can be more fully exerted in the reaction process.

Description

Technical Field

[0001] The invention relates to the technical field of chemical industry, in particular to a polyester resin synthesis reaction kettle. Background Art

[0002] Polyester resins have been widely used in many industrial fields such as coatings, adhesives, fibers, plastics, etc. due to their excellent physical and chemical properties, such as good chemical corrosion resistance, mechanical strength, electrical insulation, etc. The synthesis of polyester resins is usually achieved through the polycondensation reaction of polyols and polyacids under certain temperature, pressure and catalyst.

[0003] As the core equipment for polyester resin synthesis, the performance of the reactor directly affects the quality, production efficiency and production cost of the product. In the polyester resin synthesis process, multiple raw materials need to be evenly mixed to ensure the smooth progress of the reaction. In the existing devices, it is difficult to achieve sufficient and effective dispersion for some high-viscosity or solid particle-containing materials, resulting in the difficulty of agglomerated solid materials entering the reactor directly and quickly mixing with other materials. This will not only affect the starting speed of the reaction, but may also cause local over-reaction or under-reaction, thereby affecting the molecular weight distribution and performance stability of the polyester resin. In addition, during the reaction process, it is crucial to accurately understand the state of the materials in the reactor and the reaction progress.

[0004] However, the sampling method of the existing reactor is often difficult to sample, and the actual situation of the material in the reactor cannot be observed, which leads to deviations in the judgment of the reaction state, thereby affecting the control of product quality. Therefore, a polyester resin synthesis reactor is needed. Summary of the invention

[0005] The main purpose of the present invention is to provide a polyester resin synthesis reactor, which can effectively solve the problems raised by the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A polyester resin synthesis reactor comprises a reactor body, wherein a feeding mechanism is fixedly connected to the middle of the upper end of the reactor body, a motor is fixedly connected to the side of the upper part of the outer arc surface of the reactor body away from its axis, a sampling mechanism is fixedly connected to the middle of the upper side of the outer arc surface of the reactor body, a discharge pipe is fixedly connected to the lower part of the outer arc surface of the reactor body, and a stirring component is fixedly connected to the bottom of the inner cavity of the reactor body.

[0008] Preferably, the feeding mechanism includes a stator and a rotating rod, the upper end of the stator is fixedly connected to a fixing ring, the inner surface of the fixing ring is rotatably connected to a spiral column, the upper end of the fixing ring is fixedly connected to a trumpet tube, the lower end of the spiral column is fixedly connected to a rotor, the side of the lower end of the rotor away from the axis is fixedly connected to a protective tube, the middle part of the lower end of the rotor is fixedly connected to a gear set, the gear set is composed of two meshing bevel gears, the rotating rod is rotatably connected to the middle part of the upper wall of the inner cavity of the reactor body, and the lower end of the rotating rod is fixedly connected to a paddle.

[0009] Preferably, an output end of the motor passes through the outer surface of the stator and the outer surface of the protective tube and is fixedly connected to the middle part of the vertical bevel gear through a coupling; the upper end of the rotating rod passes through the upper part of the inner cavity of the reactor body and is fixedly connected to the middle part of the horizontal bevel gear; the front and rear sides of the lower end of the stator both pass through the upper end of the reactor body and are connected to the inner cavity of the reactor body.

[0010] Preferably, the sampling mechanism comprises a cylinder, which is fixedly connected to the middle part of the front side of the outer arc surface of the reactor body, the rear end of the cylinder penetrates the outer surface of the reactor body and extends to the outside, the rear end of the cylinder is provided with a groove, the upper and lower parts of the groove are fixedly connected with fixed blocks, the front ends of the two fixed blocks are fixedly connected with round tubes, the inner cavities of the two round tubes are fixedly connected with springs, the front ends of the two springs are fixedly connected with sliding columns, and the front ends of the two sliding columns are commonly fixedly connected with sealing gaskets.

[0011] Preferably, a slide groove is provided at the front end of the cylinder, a push column is slidably connected to the inner cavity of the slide groove, and a placement groove is provided on the upper side of the front portion of the push column.

[0012] Preferably, the stirring assembly includes a stirring rod and a support block, the stirring rod is rotatably connected to the middle part of the bottom wall of the inner cavity of the reactor body, the support block is fixedly connected to the side of the lower part of the outer surface of the reactor body away from its axis, the upper end of the support block is fixedly connected to motor 2, the lower end of the stirring rod penetrates the bottom wall of the reactor body and extends to the outside, and the lower end of the support block and the lower end of the stirring rod are jointly fixedly connected to a pulley assembly.

[0013] Preferably, the pulley assembly consists of two pulleys and a belt, and the lower end of the stirring rod is fixedly connected to the upper end of the pulley in the middle.

[0014] Preferably, the second output end of the motor passes through the upper end of the support block and is fixedly connected to the upper end of a pulley away from its axis through a coupling.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The feeding mechanism provided in the present invention can crush and refine the block-shaped or larger particle materials, such as certain solid catalysts, additives, etc., entering the reactor, so that the materials can be more evenly dispersed in the reaction system when subsequently mixed with other raw materials, thereby being able to play its role more fully in the reaction process.

[0017] During use, the sampling mechanism can take samples at different time points during the reaction process, and can more comprehensively understand the changes in parameters such as the composition, concentration, temperature, pH, etc. of the materials in the reactor, ensuring that the reaction proceeds in the predetermined direction, thereby ensuring product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the feeding mechanism of the present invention;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the rotating rod of the present invention;

[0021] Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged view in the middle;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the stirring assembly of the present invention;

[0023] Figure 6 It is a schematic diagram of another viewing angle of the overall structure of the present invention.

[0024] In the figure: 1. Reactor body; 2. Feeding mechanism; 21. Stator; 22. Rotor; 23. Protective tube; 24. Fixing ring; 25. Spiral column; 26. Trumpet tube; 27. Gear set; 28. Rotating rod; 29. ​​Paddle plate; 3. Sampling mechanism; 31. Cylinder; 32. Groove; 33. Push column; 34. Placement slot; 35. Fixing block; 36. Round tube; 37. Spring; 38. Sliding column; 39. Sealing pad; 4. Stirring assembly; 41. Stirring rod; 42. Support block; 43. Motor 2; 44. Pulley assembly; 5. Motor 1; 6. Discharging pipe. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] Embodiment 1:

[0027] Embodiment 1:

[0028] like Figure 1 and Figure 6 As shown, this embodiment provides a polyester resin synthesis reactor, including a reactor body 1, a feeding mechanism 2 is fixedly connected to the middle of the upper end of the reactor body 1, a motor 5 is fixedly connected to the side of the upper part of the outer arc surface of the reactor body 1 away from its axis, a sampling mechanism 3 is fixedly connected to the middle of the front side of the outer arc surface of the reactor body 1, a discharge pipe 6 is fixedly connected to the lower part of the front side of the outer arc surface of the reactor body 1, and a stirring component 4 is fixedly connected to the bottom of the inner cavity of the reactor body 1.

[0029] In the specific implementation process, first start the motor 5 to drive the internal structure of the feeding mechanism 2 to operate, and then put the prepared raw materials such as polyols, polyacids, catalysts and possible solid additives into the feeding mechanism 2. During the operation of the internal structure of the feeding mechanism 2, the larger solid particles in the raw materials can be broken into fine particles, which is conducive to the subsequent full mixing and reaction with other materials in the reactor body 1. Then, after the broken and refined materials and other liquid raw materials all enter the inner cavity of the reactor body 1, the internal driving structure of the stirring component 4 is started to drive the internal structure of the stirring component 4 to operate and stir the materials in the inner cavity of the reactor body 1, so that the materials are evenly mixed. Then, when the reaction reaches a specific time point that needs to be monitored or according to a pre-set sampling plan, the internal structure of the sampling mechanism 3 is pressed, and the material in the reaction can be collected through the internal structure of the sampling mechanism 3, so that it can be judged whether the degree of reaction is as expected.

[0030] Embodiment 2:

[0031] In order to achieve the purpose of crushing and refining the material, refer to Figure 2 and Figure 3 In this embodiment, the feeding mechanism 2 includes a stator 21 and a rotating rod 28, the upper end of the stator 21 is fixedly connected to a fixing ring 24, the inner surface of the fixing ring 24 is rotatably connected to a spiral column 25, the upper end of the fixing ring 24 is fixedly connected to a trumpet tube 26, the lower end of the spiral column 25 is fixedly connected to a rotor 22, the side of the lower end of the rotor 22 away from the axis is fixedly connected to a protective tube 23, the middle part of the lower end of the rotor 22 is fixedly connected to a gear set 27, the gear set 27 is composed of two meshing bevel gears, the rotating rod 28 is rotatably connected to the middle part of the upper wall of the inner cavity of the reactor body 1, and the lower end of the rotating rod 28 is fixedly connected to a dial plate 29.

[0032] Furthermore, the output end of the motor 15 penetrates the outer surface of the stator 21 and the outer surface of the protective tube 23 and is fixedly connected to the middle part of the bevel gear in the vertical direction through a coupling, the upper end of the rotating rod 28 penetrates the upper part of the inner cavity of the reactor body 1 and is fixedly connected to the middle part of the bevel gear in the horizontal direction, and the front and rear sides of the lower end of the stator 21 both penetrate the upper end of the reactor body 1 and are connected to the inner cavity of the reactor body 1;

[0033] The inner surface of the stator 21 cooperates with the rotor 22 and is fixed on the machine body. A narrow grinding gap is formed between the inner diameter of the stator 21 and the outer diameter of the rotor 22. The outer surface of the rotor 22 is serrated.

[0034] First, start the motor 5 to drive the bevel gear to rotate, and then the bevel gear rotates to drive the rotor 22 to rotate, and the rotor 22 rotates while driving the spiral column 25 to rotate, and then the material is put in from above the bell tube 26, so that the material is gathered at the bottom of the bell tube 26, and then the spiral column 25 rotates to transport the material downward to the outer surface of the rotor 22, and then the rotor 22 rotates so that the solid particles contained in the material are subjected to the friction and compression between the rotor 22 and the stator 21, so as to realize the grinding of the material, and the ground material enters the inner cavity of the reactor body 1 through the through hole opened at the bottom of the stator 21, and then the rotating rod 28 is driven to rotate by the horizontal bevel gear, so that the rotating rod 28 drives the paddle 29 to rotate, and the falling material is scattered while the paddle 29 rotates, so that it can be evenly put into the inner cavity of the reactor body 1.

[0035] Embodiment three:

[0036] refer to Figure 5 In this embodiment, the stirring assembly 4 includes a stirring rod 41 and a support block 42. The stirring rod 41 is rotatably connected to the middle of the bottom wall of the inner cavity of the reactor body 1, and the support block 42 is fixedly connected to the side of the lower part of the outer surface of the reactor body 1 away from its axis. The upper end of the support block 42 is fixedly connected to a motor 2 43, and the lower end of the stirring rod 41 penetrates the bottom wall of the reactor body 1 and extends to the outside. The lower end of the support block 42 and the lower end of the stirring rod 41 are jointly fixedly connected to a pulley assembly 44.

[0037] Furthermore, the pulley assembly 44 consists of two pulleys and a belt 1, the lower end of the stirring rod 41 is fixedly connected to the upper end of the pulley in the middle, and the output end of the motor 2 43 passes through the upper end of the support block 42 and is fixedly connected to the upper end of a pulley away from its axis through a coupling.

[0038] By starting motor 2 43, the pulley away from the axis of the reactor body 1 is driven to rotate, and then the two pulleys are driven to rotate simultaneously through the action of belt 1, so that the pulley in the middle rotates and drives the stirring rod 41 to rotate, so that the blades on the surface of the stirring rod 41 stir the material.

[0039] For further reference, Figure 4The sampling mechanism 3 includes a cylinder 31, which is fixedly connected to the middle part of the front side of the outer arc surface of the reactor body 1. The rear end of the cylinder 31 penetrates the outer surface of the reactor body 1 and extends to the outside. A groove 32 is opened at the rear end of the cylinder 31. The upper and lower parts of the groove 32 are fixedly connected with fixed blocks 35. The front ends of the two fixed blocks 35 are fixedly connected with round tubes 36. The inner cavities of the two round tubes 36 are fixedly connected with springs 37. The front ends of the two springs 37 are fixedly connected with sliding columns 38. The front ends of the two sliding columns 38 are fixedly connected with sealing gaskets 39.

[0040] Furthermore, a slide groove is provided at the front end of the cylinder 31 , a push column 33 is slidably connected to the inner cavity of the slide groove, and a placement groove 34 is provided on the upper front side of the push column 33 .

[0041] When the reaction reaches a specific time point that needs to be monitored or according to a pre-set sampling plan, the push column 33 is pressed backward so that the push column 33 squeezes the sealing gasket 39 backward, so that the sealing gasket 39 pushes the two sliding columns 38 into the inner cavity of the circular tube 36, and the sealing gasket 39 leaves the rear end surface of the chute. Then, the reacted material in the inner cavity of the reactor body 1 enters the inside of the placement groove 34 from around the sealing gasket 39. Then, the hand pressing the push column 33 is released, and the push column 33 is pulled out. At the same time, the sliding column 38 is pushed forward under the action of the spring 37, and then the sealing gasket 39 is pushed close to the rear end of the chute, thereby ensuring the sealing of the inner cavity of the reactor body 1. Then, the push column 33 is completely pulled out to obtain the sample in the inner cavity of the placement groove 34.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A polyester resin synthesis reactor, comprising a reactor body (1), characterized in that: A feeding mechanism (2) is fixedly connected to the middle of the upper end of the reactor body (1); a motor (5) is fixedly connected to the side of the upper part of the outer arc surface of the reactor body (1) away from its axis; a sampling mechanism (3) is fixedly connected to the middle of the front side of the outer arc surface of the reactor body (1); a discharge pipe (6) is fixedly connected to the lower part of the front side of the outer arc surface of the reactor body (1); and a stirring component (4) is fixedly connected to the bottom of the inner cavity of the reactor body (1).

2. The polyester resin synthesis reactor according to claim 1, characterized in that: The feeding mechanism (2) comprises a stator (21) and a rotating rod (28); the upper end of the stator (21) is fixedly connected to a fixing ring (24); the inner surface of the fixing ring (24) is rotatably connected to a spiral column (25); the upper end of the fixing ring (24) is fixedly connected to a bell tube (26); the lower end of the spiral column (25) is fixedly connected to a rotor (22); a protective tube (23) is fixedly connected to the side of the lower end of the rotor (22) away from the axis; and a gear set (27) is fixedly connected to the middle part of the lower end of the rotor (22).

3. The polyester resin synthesis reactor according to claim 2, characterized in that: The rotating rod (28) is rotatably connected to the middle portion of the upper wall of the inner cavity of the reactor body (1), and the lower end of the rotating rod (28) is fixedly connected to a shifting plate (29).

4. The polyester resin synthesis reactor according to claim 2, characterized in that: The output end of the motor 1 (5) passes through the outer surface of the stator (21) and the outer surface of the protective tube (23) and is fixedly connected to the middle part of the vertical bevel gear through a coupling; the upper end of the rotating rod (28) passes through the upper part of the inner cavity of the reactor body (1) and is fixedly connected to the middle part of the horizontal bevel gear; the front and rear sides of the lower end of the stator (21) both pass through the upper end of the reactor body (1) and are connected to the inner cavity of the reactor body (1).

5. The polyester resin synthesis reactor according to claim 1, characterized in that: The sampling mechanism (3) comprises a cylinder (31), the cylinder (31) being fixedly connected to the middle part of the front side of the outer arc surface of the reactor body (1), the rear end of the cylinder (31) passing through the outer surface of the reactor body (1) and extending to the outside, the rear end of the cylinder (31) being provided with a groove (32), and the upper and lower parts of the groove (32) being fixedly connected to a fixing block (35).

6. The polyester resin synthesis reactor according to claim 5, characterized in that: The front ends of the two fixed blocks (35) are fixedly connected to a circular tube (36), the inner cavities of the two circular tubes (36) are fixedly connected to a spring (37), the front ends of the two springs (37) are fixedly connected to a sliding column (38), and the front ends of the two sliding columns (38) are commonly fixedly connected to a sealing gasket (39).

7. A polyester resin synthesis reactor according to claim 4, characterized in that: A slide groove is provided at the front end of the cylinder (31), a push column (33) is slidably connected to the inner cavity of the slide groove, and a placement groove (34) is provided on the upper front side of the push column (33).

8. The polyester resin synthesis reactor according to claim 1, characterized in that: The stirring assembly (4) comprises a stirring rod (41) and a support block (42); the stirring rod (41) is rotatably connected to the middle of the bottom wall of the inner cavity of the reactor body (1); the support block (42) is fixedly connected to the lower part of the outer surface of the reactor body (1) away from the axis thereof; the upper end of the support block (42) is fixedly connected to a second motor (43); the lower end of the stirring rod (41) penetrates the bottom wall of the reactor body (1) and extends to the outside; the lower end of the support block (42) and the lower end of the stirring rod (41) are fixedly connected to a pulley assembly (44).

9. The polyester resin synthesis reactor according to claim 8, characterized in that: The pulley assembly (44) is composed of two pulleys and a belt, and the lower end of the stirring rod (41) is fixedly connected to the upper end of the pulley in the middle.

10. The polyester resin synthesis reactor according to claim 8, characterized in that: The output end of the second motor (43) passes through the upper end of the support block (42) and is fixedly connected to the upper end of a pulley away from its axis through a coupling.

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