Environment-friendly polyester resin continuous synthesis reaction kettle

Abstract

The utility model discloses an environment-friendly polyester resin continuous synthesis reaction kettle, which relates to the field of reaction kettles, aims to solve the problem of low stability of the existing reaction kettles, and adopts the technical scheme that the environment-friendly polyester resin continuous synthesis reaction kettle comprises a reaction kettle body, a discharge pipe is fixed at the bottom of the reaction kettle body, and a first electromagnetic valve is fixed outside the discharge pipe; a feeding pipe is fixed at the top of the reaction kettle body, a flange screw at the end, far away from the reaction kettle body, of the feeding pipe is connected with a material guide pipe, the other end of the material guide pipe is connected with a feeding mixing barrel, a plurality of connecting pipes are connected to the top of the feeding mixing barrel, second electromagnetic valves are fixed on the connecting pipes, and the ends, far away from the feeding mixing barrel, of the connecting pipes are externally connected with raw material supply equipment; a one-way check valve is fixed on the material guide pipe, a fourth electromagnetic valve fixed on the material guide pipe is arranged on the side surface of the one-way check valve, and an air inlet piece fixed on the material guide pipe is arranged below the one-way check valve, so that the technical effect of continuously synthesizing polyester resin is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to an environmentally friendly polyester resin continuous synthesis reactor. Background Art

[0002] Polyester resin is a general term for polymeric compounds formed by the polycondensation of diols, dibasic acids, or polyols and polyacids. Polyester resins are categorized into saturated and unsaturated polyester resins. Unsaturated polyester adhesives primarily consist of unsaturated polyester resins, pigments, fillers, initiators, and other additives. They offer low viscosity, easy wetting, and excellent processability. The cured adhesive layer exhibits high hardness, excellent transparency, and glossiness. They can cure rapidly under pressure at room temperature, exhibit good heat resistance, and exhibit excellent electrical properties. They are primarily used for bonding fiberglass, rigid plastics, concrete, and electrical can seals.

[0003] The synthesis reaction of polyester resin is generally carried out in a reactor, and a feed port and a discharge port are provided on the reactor. The raw materials required for the synthesis reaction are transported into the reaction chamber through the feed port. However, when multiple raw materials are put into the reaction chamber, there is often insufficient mixing, and a large amount of raw materials accumulate in the reaction chamber, which makes the efficiency of the synthesis reaction very low. At the same time, traditional devices of this type cannot add raw materials at the same time. They often only have one feed port, which is not conducive to controlling the material ratio and is inconvenient to use. During the polyester resin synthesis reaction, it is necessary to wait for the reaction to be completed before adding raw materials for the next round of reaction. Therefore, its working efficiency needs to be improved. Utility Model Content

[0004] The utility model aims to provide an environmentally friendly polyester resin continuous synthesis reactor which can continuously synthesize polyester resin.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An environmentally friendly polyester resin continuous synthesis reactor includes a reactor body, characterized in that a discharge pipe is fixed to the bottom of the reactor body, a first solenoid valve is fixed to the outside of the discharge pipe, a feed pipe is fixed to the top of the reactor body, the feed pipe is connected to a guide pipe by a flange screw at the end away from the reactor body, the other end of the guide pipe is connected to a feed mixing barrel, a plurality of connecting pipes are connected to the top of the feed mixing barrel, a second solenoid valve is fixed on each connecting pipe, the end of the connecting pipe away from the feed mixing barrel is externally connected to a raw material supply device, a one-way check valve is fixed on the guide pipe, a fourth solenoid valve fixed to the guide pipe is provided on the side of the one-way check valve, and an air inlet component fixed to the guide pipe is provided below the one-way check valve.

[0007] Furthermore, a bracket is fixed on the outside of the reactor body, a support plate is fixed on the side of the bracket, and the support plate is fixed to the feed mixing cylinder.

[0008] By adopting the above technical solution, it is convenient to fix the feeding and mixing cylinder.

[0009] Further, an inner convex is provided at the bottom of the feeding and mixing cylinder. The guide pipe is connected to the edge of the inner convex. Stirring rods are provided on the side of the inner convex. The stirring rods are in a U shape. There are several stirring rods. The upper ends of the several stirring rods are fixed with a rotating shaft. The end of the rotating shaft far from the stirring rod extends out along the top of the feeding and mixing cylinder. A motor is fixed at the extending end of the rotating shaft.

[0010] By adopting the above technical solution, the feeding and mixing cylinder is provided to add raw materials into the reaction kettle body in real time, realizing continuous synthesis. At the same time, an inner convex is provided inside the feeding and mixing cylinder, which can extrude the raw materials between the inner convex and the inner wall of the feeding and mixing cylinder, so that the raw materials are stirred in a small space, improving the stirring efficiency.

[0011] Further, a vertical rod is rotatably connected inside the stirring rod. Blades are fixed on the side of the vertical rod. There are several blades along the length direction of the vertical rod.

[0012] By adopting the above technical solution, while the stirring rod rotates, due to the raw materials hitting the blades inside the stirring rod, the blades start to rotate along with the vertical rod, stirring the raw materials inside, which can effectively improve the stirring efficiency.

[0013] Further, the air inlet part includes an annular pipe fixed outside the guide pipe. Sprayers are fixed inside the annular pipe. There are several sprayers along the circumferential direction of the annular pipe. An air inlet pipe is also connected to the side of the annular pipe. The end of the air inlet pipe far from the annular pipe is connected to an air pump. The air pump is fixed on the support plate.

[0014] By adopting the above technical solution, air can be introduced into the feeding pipe through the annular pipe and the air inlet pipe on it to improve the feeding efficiency.

[0015] Further, an exhaust pipe is fixed on the top of the reaction kettle body. A third solenoid valve is fixed on the exhaust pipe. The third solenoid valve is connected in series with the air pump.

[0016] By adopting the above technical solution, after the air pump is turned on, the third solenoid valve can be opened. At this time, the excess gas inside the reaction kettle body is discharged along the exhaust pipe, and at the same time, the air pressure balance inside the reaction kettle body can be maintained.

[0017] In summary, the beneficial technical effects of the present utility model are as follows:

[0018] 1. The feeding and mixing cylinder is adopted. A guide pipe and a feeding pipe are arranged between the feeding and mixing cylinder and the reaction kettle body. At the same time, a one-way check valve is arranged outside the guide pipe. During the reaction process, raw materials can be continuously added into the reaction kettle body, thus realizing continuous synthesis and improving work efficiency;

[0019] 2. An air inlet component is used. When the air pump is turned on, air can be ventilated from the annular pipe and the air inlet pipe on it toward the inside of the feed pipe to improve the feeding efficiency. At the same time, the air pump is connected in series with the third solenoid valve. After the air pump is turned on, the third solenoid valve can be opened. At this time, the excess gas inside the reactor body is discharged along the exhaust pipe, and the air pressure inside the reactor body can be kept balanced.

[0020] 3. A motor and a drive shaft are used. The motor drives the drive shaft to rotate, and the stirring rod located on the side of the drive shaft starts to rotate. Since the stirring rod is in a U-shape, the stirring rod is located at the bottom of the feed mixing barrel and starts to rotate and stir along the inner convex side. At the same time, during the rotation process, the blades inside the stirring rod start to rotate with the vertical rod due to the presence of raw materials hitting the stirring rod, stirring the raw materials inside, which can effectively improve the stirring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute part of the specification, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic structural diagram of an environmentally friendly polyester resin continuous synthesis reactor according to this embodiment;

[0023] Figure 2 This is an environmentally friendly polyester resin continuous synthesis reactor. Figure 1 Schematic side view of

[0024] Figure 3 This is an environmentally friendly polyester resin continuous synthesis reactor. Figure 1 A schematic internal cross-sectional view of

[0025] Figure 4 This is an environmentally friendly polyester resin continuous synthesis reactor. Figure 3 Enlarged schematic diagram of point A in the middle.

[0026] In the figure, 1. reactor body; 2. discharge pipe; 3. first solenoid valve; 4. feed pipe; 5. guide pipe; 6. feed mixing barrel; 7. connecting pipe; 8. second solenoid valve; 9. one-way check valve; 10. fourth solenoid valve; 11. bracket; 12. support plate; 13. inner convex; 14. stirring rod; 15. rotating shaft; 16. motor; 17. vertical rod; 18. blade; 19. annular pipe; 20. nozzle; 21. air inlet pipe; 22. air pump; 23. exhaust pipe; 24. third solenoid valve. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings.

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figure 1-4 , the present utility model provides a technical solution: an environment-friendly polyester resin continuous synthesis reactor, including a reactor body 1, a discharge pipe 2 is fixed at the bottom of the reactor body 1, a first solenoid valve 3 is fixed outside the discharge pipe 2, a feed pipe 4 is fixed at the top of the reactor body 1, a flange screw of the end of the feed pipe 4 away from the reactor body 1 is connected to a guide pipe 5, the other end of the guide pipe 5 is connected to a feed mixing cylinder 6, a plurality of connecting pipes 7 are connected to the top of the feed mixing cylinder 6, second solenoid valves 8 are fixed on the connecting pipes 7, the ends of the connecting pipes 7 away from the feed mixing cylinder 6 are externally connected to raw material supply equipment, a one-way check valve 9 is fixed on the guide pipe 5, a fourth solenoid valve 10 fixed on the guide pipe 5 is provided on the side of the one-way check valve 9, and an air inlet part fixed on the guide pipe 5 is provided below the one-way check valve 9.

[0030] Among them, a bracket 11 is fixed outside the reactor body 1, a support plate 12 is fixed on the side of the bracket 11, and the support plate 12 is fixed to the feed mixing cylinder 6.

[0031] An inner convex 13 is provided at the bottom of the feed mixing cylinder 6, the guide pipe 5 is communicated with the edge of the inner convex 13, a stirring rod 14 is provided on the side of the inner convex 13, the stirring rod 14 is in a U shape, there are a plurality of stirring rods 14, the upper ends of the plurality of stirring rods 14 are fixed with a rotating shaft 15, the end of the rotating shaft 15 away from the stirring rod 14 extends out along the top of the feed mixing cylinder 6, and a motor 16 is fixed at the extending end of the rotating shaft 15.

[0032] A vertical rod 17 is rotatably connected inside the stirring rod 14, a blade 18 is fixed on the side of the vertical rod 17, and a plurality of blades 18 are provided along the length direction of the vertical rod 17.

[0033] Furthermore, after the feed enters the inside of the feed mixing cylinder 6, the driving shaft can be rotated by the motor 16, and then the stirring rod 14 on the side of the driving shaft starts to rotate. Since the stirring rod 14 is in a U shape, the stirring rod 14 is located at the bottom of the feed mixing cylinder 6 and starts to rotate and stir along the side of the inner convex 13. At the same time, during the rotation process, due to the raw materials hitting the blades 18 inside the stirring rod 14, the blades 18 start to rotate along the vertical rod 17, further improving the stirring efficiency.

[0034] Among them, the air inlet part includes an annular pipe 19 fixed outside the material guiding pipe 5. Inside the annular pipe 19, a spray head 20 is fixed. A number of spray heads 20 are provided along the circumferential direction of the annular pipe 19. On the side of the annular pipe 19, an air inlet pipe 21 is also connected. The end of the air inlet pipe 21 far from the annular pipe 19 is connected to an air pump 22, and the air pump 22 is fixed on the support plate 12.

[0035] Meanwhile, at the top of the reaction kettle body 1, an exhaust pipe 23 is fixed. On the exhaust pipe 23, a third solenoid valve 24 is fixed, and the third solenoid valve 24 is connected in series with the air pump 22.

[0036] Furthermore, when feeding through the feeding and mixing cylinder 6, after the fourth solenoid valve 10 is opened, the material can automatically enter the feeding pipe 4 along the material guiding pipe 5 under the action of gravity, and then enter the inside of the reaction kettle body 1. At the same time when the fourth solenoid valve 10 is opened, the air pump 22 can be opened simultaneously. When the air pump 22 works, air can be supplied into the inside of the feeding pipe 4 from the annular pipe 19 and the air inlet pipe 21 thereon to improve the feeding efficiency. At the same time, the air pump 22 and the third solenoid valve 24 are connected in series. After the air pump 22 is opened, the third solenoid valve 24 can be opened. At this time, the redundant gas inside the reaction kettle body 1 is discharged along the exhaust pipe 23.

[0037] The working principle of the present utility model: The top of the feeding and mixing cylinder 6 can introduce the polyester resin synthesis raw materials through the connecting pipe 7, and different feeding devices can be connected through different connecting pipes 7. At this time, the second solenoid valve 8 is opened. After the raw materials enter the inside of the feeding and mixing cylinder 6, the motor 16 can be opened. The motor 16 drives the driving shaft to rotate, and then the stirring rod 14 located on the side of the driving shaft starts to rotate. Since the stirring rod 14 is in a U shape, the stirring rod 14 is located at the bottom of the feeding and mixing cylinder 6 and starts to rotate and stir along the side of the inner convex 13. At the same time, during the rotation process, due to the raw materials hitting the blades 18 inside the stirring rod 14, the blades 18 start to rotate along the vertical rod 17 to stir the raw materials inside. After the raw materials are stirred, the fourth solenoid valve 10 is opened to introduce the raw materials into the reaction kettle body 1 for reaction. After the reaction, the first solenoid valve 3 is opened, and the synthesized material is discharged through the discharge pipe 2. At the same time, while the reaction is carried out inside the reaction kettle body 1, raw material addition is carried out inside the feeding and mixing cylinder 6, so as to continuously carry out the synthesis work.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An environmentally friendly polyester resin continuous synthesis reactor, comprising a reactor body (1), characterized in that: At the bottom of the reaction kettle body (1), a discharge pipe (2) is fixed. A first solenoid valve (3) is fixed outside the discharge pipe (2). At the top of the reaction kettle body (1), a feed pipe (4) is fixed. The flange of the end of the feed pipe (4) far from the reaction kettle body (1) is screwed to a guide pipe (5). The other end of the guide pipe (5) is connected to a feed mixing cylinder (6). At the top of the feed mixing cylinder (6), a number of connecting pipes (7) are connected. Second solenoid valves (8) are fixed on the connecting pipes (7). The ends of the connecting pipes (7) far from the feed mixing cylinder (6) are externally connected to raw material supply equipment. A check valve (9) is fixed on the guide pipe (5). A fourth solenoid valve (10) fixed on the guide pipe (5) is provided on the side of the check valve (9). An air inlet part is provided on the guide pipe (5) below the check valve (9).

2. The environmentally friendly polyester resin continuous synthesis reactor according to claim 1, characterized in that: A bracket (11) is fixed outside the reaction kettle body (1). A support plate (12) is fixed on the side of the bracket (11). The support plate (12) is fixed to the feed mixing cylinder (6).

3. The environmentally friendly polyester resin continuous synthesis reactor according to claim 1, characterized in that: An inner convex (13) is provided at the bottom of the feed mixing cylinder (6). The guide pipe (5) is communicated with the edge of the inner convex (13). A stirring rod (14) is provided on the side of the inner convex (13). The stirring rod (14) is in a U shape. A number of stirring rods (14) are provided. The upper ends of the number of stirring rods (14) are fixed with a rotating shaft (15). The end of the rotating shaft (15) far from the stirring rod (14) extends out along the top of the feed mixing cylinder (6). A motor (16) is fixed at the extending end of the rotating shaft (15).

4. The environmentally friendly polyester resin continuous synthesis reactor according to claim 3, characterized in that: A vertical rod (17) is rotatably connected inside the stirring rod (14). A number of blades (18) are fixed on the side of the vertical rod (17). The blades (18) are provided along the length direction of the vertical rod (17).

5. The environmentally friendly polyester resin continuous synthesis reactor according to claim 2, characterized in that: The air inlet part includes an annular pipe (19) fixed outside the guide pipe (5). Nozzles (20) are fixed inside the annular pipe (19). A number of nozzles (20) are provided along the circumferential direction of the annular pipe (19). An air inlet pipe (21) is also connected to the side of the annular pipe (19). The end of the air inlet pipe (21) far from the annular pipe (19) is connected to an air pump (22). The air pump (22) is fixed on the support plate (12).

6. The environmentally friendly polyester resin continuous synthesis reactor according to claim 1, characterized in that: An exhaust pipe (23) is fixed at the top of the reaction kettle body (1). A third solenoid valve (24) is fixed on the exhaust pipe (23). The third solenoid valve (24) is connected in series with the air pump (22).

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