Methylated amino resin processing reaction kettle

Abstract

The application discloses a methylated amino resin processing reaction kettle, which comprises a reaction kettle, the top of the reaction kettle is provided with a stirring structure, the top of the reaction kettle is also provided with a plurality of charging ports, a detection port, a feeding port and a vacuum interface, a detection opening is formed in the reaction kettle, an acid-base sensor and a temperature sensor are mounted at the detection opening, a jacket is arranged on the outer side of the reaction kettle, a discharging pipe is mounted at the bottom of the reaction kettle, and a circulating structure is further arranged between the discharging pipe and the reaction kettle. According to the reaction kettle, materials are continuously stirred in the reaction stage, the internal temperature and the pH value are balanced, the current temperature and the pH value can be accurately measured, the temperature and the pH value in the reaction kettle can be stably controlled according to the production process, and in the reaction process, the materials are conveniently and rapidly added, and continuous sealed reaction can be achieved; the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of methyl etherified amino resin production technology, and in particular to a methyl etherified amino resin processing reactor. Background Technology

[0002] Methyl etherified melamine resin is a water-white or pale yellow transparent viscous liquid. It is a melamine resin that has been highly etherified with methanol. It can undergo cross-linking reactions with the hydroxyl and carboxyl groups of alkyd, polyester thermosetting acrylic resin, and epoxy resin. It is soluble in ketones, aromatics, esters, and alcohol ether solvents. When cured, it has excellent hardness, flexibility, and outdoor weather resistance. It is mainly used in various coatings and adhesives.

[0003] The synthesis of methyl etherified amino resins is carried out in a reactor. During the synthesis reaction of methyl etherified amino resins, multiple temperatures are required throughout the entire process, and the pH value needs to be adjusted by acid and alkali at each stage. Therefore, the reactor needs to have rapid temperature control capabilities and facilitate the addition of reactants. To address these issues, we propose a methyl etherified amino resin processing reactor. Utility Model Content

[0004] This application provides a reaction vessel for processing methyl etherified amino resin, which solves the problem that it is necessary to add acid and alkali multiple times to adjust the pH value and temperature during the synthesis of methyl etherified amino resin.

[0005] This application provides a reaction vessel for processing methyl etherified amino resin, including a reaction vessel with a stirring structure installed on the top. The top of the reaction vessel is also provided with multiple feeding ports, detection ports, feed ports and vacuum interfaces. A feeding pipe is inserted into the feeding port, and an acid-base sensor and a temperature sensor are installed at the detection port. A jacket is provided on the outside of the reaction vessel, and a discharge pipe is installed at the bottom of the reaction vessel. A circulation structure is also provided between the discharge pipe and the reaction vessel.

[0006] Preferably, the stirring structure includes a stirring motor installed on the top of the reactor, the stirring motor being equipped with a stirring shaft via a coupling, and stirring blades being detachably installed at the bottom of the stirring shaft.

[0007] Preferably, the circulation structure includes a discharge port installed on the discharge pipe and a feed port located on one side of the reactor. The discharge port and the feed port are connected by a circulation pipe, and a circulation pump and an observation pipe are provided on the circulation pipe.

[0008] Preferably, the feeding pipe and the feeding port are sealed by a flange, and a sealing valve is provided at the end of the feeding pipe located outside the reactor.

[0009] Preferably, a support is provided on one side of the reactor, and a sleeve is provided on the support, with the feeding pipe located inside the sleeve.

[0010] Preferably, a silicone layer is provided inside the sleeve.

[0011] Preferably, the support frame of the reactor is provided with a grounding connection terminal.

[0012] Preferably, a buffer plate is provided on one side of the inlet end of the jacket.

[0013] Preferably, an inspection port is also provided on one side of the reactor.

[0014] As can be seen from the above technical solutions, this application provides a reaction vessel for processing methyl etherified amino resin. During use, the reactants are filled through the inlet and the feeding pipe, with the feeding pipe used to add liquid materials. Then, the inlet and feeding pipe are closed. The pressure inside the reaction vessel is controlled by a pressure system via a vacuum interface. During the reaction, the temperature of the reaction vessel is controlled by the medium within the jacket, while the stirring structure continuously stirs the mixture, ensuring uniform heating of the reactants. If additional reactants are needed, they can be added through the feeding pipe. The reactivity can be observed through a circulation structure during the reaction. The reaction can be completed under sealed conditions. Furthermore, this application has strong temperature control capabilities and convenient material addition.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Through the design of the stirring structure, continuous stirring can be carried out after the feeding is completed, ensuring full contact between materials, and also facilitating uniform heating and improving reaction efficiency;

[0017] 2. By adding a feeding port and a feeding pipe, a feeding pipe is added to the feeding port inside the reactor. Corrosive materials are added to the reactor through the feeding pipe, which can protect the feeding port and slowly deliver the corrosive materials into the solution, where they are evenly mixed by stirring.

[0018] 3. The circulation structure allows for observation of the reaction in the later stages, enabling material inspection even under sealed conditions, ensuring high safety.

[0019] In summary, in this application, the material is continuously stirred during the reaction stage, and the internal temperature and pH value are balanced. The current temperature and pH can be accurately measured, and the temperature and pH inside the reactor can be stably controlled according to the production process. Furthermore, the addition of materials during the reaction is convenient and quick, and continuous sealed reaction can be achieved, thereby improving production efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of the internal structure of a reaction vessel for processing methyl etherified amino resin according to the present invention.

[0022] Figure 2 This is a top view schematic diagram of a reaction vessel for processing methyl etherified amino resin according to the present invention.

[0023] Figure 3 This is a schematic diagram of the external structure of a reaction vessel for processing methyl etherified amino resin according to the present invention.

[0024] In the diagram: 1. Reactor, 2. Feed port, 3. Feed pipe, 4. Stirring motor, 5. Stirring shaft, 6. Acid-base sensor, 7. Detection port, 8. Inspection port, 9. Buffer plate, 10. Jacket, 11. Support frame, 12. Grounding connection terminal, 13. Discharge port, 14. Discharge pipe, 15. Stirring blade, 16. Sleeve, 17. Bracket, 18. Temperature sensor, 19. Vacuum interface, 20. Circulation pump, 21. Circulation pipe, 22. Feed port, 23. Observation tube. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0026] See Figure 1-3A reaction vessel for processing methyl etherified amino resin is disclosed in this application. Specifically, it includes a reaction vessel 1, with a stirring structure installed on the top. After feeding, the stirring structure continuously stirs the materials inside the reaction vessel 1, ensuring sufficient contact between materials and promoting uniform heating and dispersion. Furthermore, it improves the accuracy of temperature and pH measurement. The top of the reaction vessel 1 is also equipped with multiple feeding ports 2, detection ports 7, inlet ports 22, and vacuum interfaces 19. Feeding ports 2 are fitted with feeding pipes 3, the number of which can be increased. Depending on the specific application, since this application is carried out in a sealed environment, the feed port 2, which does not have a feed pipe 3, is sealed by a blind flange. During the initial feeding, other materials can be fed at once through the feed port 22. Corrosive materials are fed through the feed pipe 3 after the initial feeding is completed. In the subsequent reaction process, pH adjustment is also completed through the feed pipe 3, which can effectively reduce acid-base contact at the feed port 2. Furthermore, the feed pipe 3 can be set into two separate ones for adding acid and base. The added acid and base adjustment materials can be directly sent to the reaction liquid, reducing direct contact with the reaction vessel.

[0027] An acid-base sensor 6 and a temperature sensor 18 are installed at the detection port 7 to detect the pH value and temperature of the reaction solution. Since this application is in a continuous stirring state, the temperature and pH value of the reaction by the sensor can accurately express the actual value. According to the detection value, the temperature and the amount of acid and base added can be adjusted appropriately. When controlling the temperature, a jacket 10 is set on the outside of the reactor 1. In this application, the jacket 10 is a heat transfer oil jacket, which can provide a large heating range, large temperature control capacity, good heat preservation, and facilitate continuous heat preservation reaction. Furthermore, a buffer plate 9 is set on one side of the inlet end of the jacket 10 to reduce the scouring of the side wall by the heat transfer oil entering the jacket 10. A discharge pipe 14 is installed at the bottom of the reactor 1 for discharging the material after the reaction. Since this application has high sealing performance, a circulation structure is also set between the discharge pipe 14 and the reactor 1. Through the circulation structure, the reaction of the material can be observed during the circulation process of replacing the upper and lower reaction solutions.

[0028] In this application, the stirring structure includes a stirring motor 4 installed on the top of the reactor 1. The stirring motor 4 is a variable frequency motor, which can control the stirring speed according to the amount of material. The stirring motor 4 is equipped with a stirring shaft 5 through a coupling. The bottom of the stirring shaft 5 is detachably equipped with stirring blades 15. The stirring blades 15 are fixed to the stirring shaft 5 with bolts for easy periodic replacement.

[0029] In this application, the circulation structure includes a discharge port 13 installed on the discharge pipe 14 and a feed port located on one side of the reactor 1. The material circulates at the feed port and the discharge port 13. Specifically, the discharge port 13 and the feed port are connected by a circulation pipe 21. The circulation pipe 21 is equipped with a circulation pump 20 and an observation pipe 23. The observation pipe 23 is made of transparent glass. During circulation, the circulation pump 20 is started to circulate, and the reactivity is observed through the observation pipe 23.

[0030] In this application, the feeding pipe 3 and the feeding port 2 are sealed by a flange. The feeding pipe 3 is provided with a flange corresponding to the feeding port 2. When installing the feeding pipe 3, the feeding port 2 is fixed by the flange. The feeding pipe 3 is used as a new feeding device. A sealing valve is provided at one end of the feeding pipe 3 located outside the reactor 1. The valve is opened when feeding and sealed during the reaction.

[0031] In this application, since the feeding pipe 3 vibrates due to the feeding, a support 17 is provided on one side of the reactor 1. A sleeve 16 is provided on the support 17, and the feeding pipe 3 is located inside the sleeve 16 to support the feeding pipe 3. Furthermore, a silicone layer is provided inside the sleeve 16 to improve the stability of the support.

[0032] In this application, the support frame 11 of the reactor 1 is provided with a grounding connection terminal 12 to ground the reactor body and improve the safety during the reaction.

[0033] In this application, an inspection port 8 is also provided on one side of the reactor 1, through which the reactivity is cleaned and inspected.

[0034] As can be seen from the above technical solution, when using this application, the reactants are filled in through the inlet 22 and the feeding pipe 3, where the feeding pipe 3 is used to add liquid materials. Then the inlet 22 and the feeding pipe 3 are closed. The pressure inside the reactor 1 is controlled by the pressure system of the vacuum interface 19. During the reaction, the temperature of the reactor 1 is controlled by the medium in the jacket 10. At the same time, the stirring structure continuously stirs, so that the reactants are heated evenly. If it is necessary to add reactants, they can be added through the feeding pipe 3. During the reaction, the reactivity can be observed through the circulation structure. The reaction can be completed under sealed conditions. Moreover, this application has strong temperature control capability and convenient material addition.

[0035] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0036] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A methyl etherified amino resin processing reactor comprising a reactor (1), characterized in that: The top of the reaction kettle (1) is provided with a stirring structure, and the top of the reaction kettle (1) is also provided with a plurality of feeding openings (2), detection openings (7), feeding openings (22) and vacuum interfaces (19), wherein the feeding opening (2) is inserted with a feeding pipe (3), the detection opening (7) is provided with an acid-base sensor (6) and a temperature sensor (18), the outer side of the reaction kettle (1) is provided with a jacket (10), the bottom of the reaction kettle (1) is provided with a discharge pipe (14), and the discharge pipe (14) and the reaction kettle (1) are also provided with a circulation structure.

2. The methylated amino resin processing reactor of claim 1, wherein, The stirring structure comprises a stirring motor (4) installed on the top of the reaction kettle (1), the stirring motor (4) is provided with a stirring shaft (5) through a shaft coupling, and the bottom of the stirring shaft (5) is detachably provided with stirring blades (15).

3. The methylated amino resin processing reactor of claim 1, wherein, The circulation structure comprises a discharge opening (13) installed on the discharge pipe (14) and a feeding opening arranged on one side of the reaction kettle (1), the discharge opening (13) and the feeding opening are connected through a circulation pipe (21), and the circulation pipe (21) is provided with a circulation pump (20) and an observation pipe (23).

4. The methylated amino resin processing reactor of claim 1, wherein, The feeding pipe (3) and the feeding opening (2) are sealed by flanges, and one end of the feeding pipe (3) located outside the reaction kettle (1) is provided with a sealing valve.

5. The methylated amino resin processing reactor of claim 4, wherein, One side of the reaction kettle (1) is provided with a support (17), the support (17) is provided with a sleeve (16), and the feeding pipe (3) is located in the sleeve (16).

6. The methylated amino resin processing reactor of claim 5, wherein, The sleeve (16) is provided with a silica gel layer.

7. The methylated amino resin processing reactor of claim 1, wherein, The support frame (11) of the reaction kettle (1) is provided with a grounding connection end (12).

8. The methylated amino resin processing reactor of claim 1, wherein, The inlet end of the jacket (10) is provided with a buffer plate (9).

9. The methylated amino resin processing reactor of claim 1, wherein, One side of the reaction kettle (1) is also provided with an inspection opening (8).

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