Heating device for unsaturated polyester resin production

Abstract

The utility model discloses a heating device for unsaturated polyester resin production, which comprises a production reaction kettle, a circulating heating pipe is spirally wound on the outer side of the production reaction kettle, the upper end of the production reaction kettle is fixedly connected with a feeding pipe, and a stirring assembly is arranged in an inner cavity of the production reaction kettle. The lower end of the production reaction kettle is fixedly connected with a collecting hopper, and the lower end of the collecting hopper is provided with a discharging assembly. Hot water in the heating water tank can be pumped into the circulating heating pipe spirally wound on the outer side of the production reaction kettle through the water inlet pipe by starting the water pump, and at the moment, heat carried by the hot water in the circulating heating pipe can be transferred to unsaturated polyester resin raw materials in an inner cavity of the production reaction kettle through a shell of the production reaction kettle according to the heat exchange principle. Therefore, the unsaturated resin raw material is heated.

Description

Technical Field

[0001] This utility model relates to the field of unsaturated resin production, and in particular to a heating device for unsaturated resin production. Background Technology

[0002] Unsaturated resins occupy an extremely important position in modern industrial production and are widely used in many fields such as construction, automobiles, and aerospace. In their production process, the heating step is a crucial step, which directly affects the reaction process, product quality, and production efficiency.

[0003] In traditional heating equipment for unsaturated resin production, heating is typically performed from the bottom or side wall of the tank in a single direction. This can lead to situations where localized areas of strong thermal convection exist while other areas experience weaker convection, further hindering uniform mixing and making the reaction process difficult to proceed as expected. This increases the difficulty of product quality control and production costs. Secondly, during the heating process, the viscosity and adhesiveness of the unsaturated resin change as the temperature rises and the reaction progresses. When the material comes into contact with the inner wall of the heating tank, the surface properties of the inner wall and the characteristics of the material itself can cause variations in viscosity. Material tends to form an adhesion layer on the wall surface. The internal structure of traditional heating devices is relatively smooth and flat, lacking an effective anti-wall-sticking design. During the stirring process, the material near the wall cannot be fully moved, and over time, it will accumulate and form a wall-sticking layer. This wall-sticking phenomenon not only wastes materials and reduces product yield, but also affects the heat transfer efficiency, making the temperature distribution inside the tank more uneven. In addition, after a long period of accumulation, the wall-sticking layer may fall off and enter the product, introducing impurities and affecting the purity and quality of the product. To solve the above problems, we propose a heating device for unsaturated resin production. Utility Model Content

[0004] The main objective of this invention is to provide a heating device for the production of unsaturated resins, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A heating device for producing unsaturated resin includes a production reactor, a circulating heating tube spirally wound around the outer side of the production reactor, a feed pipe fixedly connected to the upper end of the production reactor, a stirring assembly provided in the inner cavity of the production reactor, a collecting hopper fixedly connected to the lower end of the production reactor, and a discharge assembly provided at the lower end of the collecting hopper.

[0007] Preferably, the stirring assembly includes a drive motor, which is located at the upper end of the production reactor. The output end of the drive motor is fixedly connected to a rotating shaft, which is rotatably connected to the production reactor. Multiple stirring shafts are fixedly connected to the outer side of the rotating shaft, and all stirring shafts are located in the inner cavity of the production reactor.

[0008] Preferably, a first U-shaped bracket and a second U-shaped bracket are fixedly connected to the outer side of the rotating shaft. Scrapers are fixedly connected to the ends of the first U-shaped bracket and the second U-shaped bracket that are far apart from each other. Both scrapers are in contact with the inner wall of the production reactor.

[0009] Preferably, a heating water tank is provided at the front end of the production reactor, a second support frame is fixedly connected to the lower end of the heating water tank, a water pump is fixedly installed at the lower end of the inner wall of the heating water tank, an inlet pipe is fixedly connected to the upper end of the water pump, one end of the inlet pipe is fixedly connected to a circulating heating pipe, and the other end of the circulating heating pipe is fixedly connected to an outlet pipe, the other end of which is located in the inner cavity of the heating water tank.

[0010] Preferably, the discharge assembly includes a discharge pipe, which is fixedly connected to the lower end of the hopper, and a discharge control valve is provided on the outside of the discharge pipe.

[0011] Preferably, a first support frame is fixedly connected to the lower outer side of the production reactor.

[0012] Preferably, a mounting block is fixedly connected to the outside of the drive motor, and the mounting block is fixedly installed at the upper end of the production reactor.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This heating device for unsaturated resin production heats the water in the inner cavity of a heating water tank by starting the heating water tank. At the same time, the water pump is started, which draws the hot water in the heating water tank into a circulating heating tube spirally wound on the outside of the production reactor through the inlet pipe. At this time, through the principle of heat exchange, the heat carried by the hot water in the circulating heating tube can be transferred to the unsaturated resin raw material in the inner cavity of the production reactor through the outer shell of the production reactor, thereby heating the unsaturated resin raw material. After heating, the hot water in the circulating heating tube returns to the heating water tank through the outlet pipe, realizing the recycling of hot water.

[0015] 2. This heating device for unsaturated resin production uses a drive motor to rotate a rotating shaft. The rotation of the rotating shaft drives multiple stirring shafts, which in turn stir the unsaturated resin material inside the reactor, ensuring uniform heating and accelerating the reaction process. Simultaneously, the rotating shaft also drives a first U-shaped support and a second U-shaped support, which in turn move corresponding scrapers against the inner wall of the reactor. This removes any unsaturated resin material adhering to the reactor wall, effectively preventing it from clinging to the reactor wall and ensuring uniform heating of each portion of the unsaturated resin material, thus improving product quality consistency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a heating device for producing unsaturated resin according to the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of a heating device for producing unsaturated resin according to the present invention. Figure 2 ;

[0018] Figure 3 This is a cross-sectional view of the overall structure of a heating device for producing unsaturated resin according to the present invention.

[0019] Figure 4 This is a partial structural schematic diagram of a heating device for producing unsaturated resin according to the present invention.

[0020] Figure 5 This is an enlarged structural diagram of section A of the heating device for producing unsaturated resin according to this utility model.

[0021] In the diagram: 1. Production reactor; 2. Circulating heating tube; 3. Feed pipe; 4. Collection hopper; 5. Discharge pipe; 6. Discharge control valve; 7. First support frame; 8. Second support frame; 9. Heating water tank; 10. Water inlet pipe; 11. Water outlet pipe; 12. Drive motor; 13. Mounting block; 14. Rotating shaft; 15. First U-shaped bracket; 16. Second U-shaped bracket; 17. Scraper; 18. Stirring shaft; 19. Water pump. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1-5As shown, a heating device for the production of unsaturated resin includes a production reactor 1, a circulating heating tube 2 spirally wound on the outer side of the production reactor 1, a feed pipe 3 fixedly connected to the upper end of the production reactor 1, a stirring assembly provided in the inner cavity of the production reactor 1, a collecting hopper 4 fixedly connected to the lower end of the production reactor 1, and a discharge assembly provided at the lower end of the collecting hopper 4.

[0024] In this embodiment, the stirring assembly includes a drive motor 12, which is located at the upper end of the production reactor 1. The output end of the drive motor 12 is fixedly connected to a rotating shaft 14, which is rotatably connected to the production reactor 1. Multiple stirring shafts 18 are fixedly connected to the outer side of the rotating shaft 14, and the stirring shafts 18 are all located in the inner cavity of the production reactor 1. A first U-shaped support 15 and a second U-shaped support 16 that are symmetrically connected are fixedly connected to the outer side of the rotating shaft 14. Scrapers 17 are fixedly connected to the ends of the first U-shaped support 15 and the second U-shaped support 16 that are far apart from each other. Both scrapers 17 are in contact with the inner wall of the production reactor 1.

[0025] Specifically, by starting the drive motor 12, the output of the drive motor 12 will drive the rotating shaft 14 to rotate. The rotation of the rotating shaft 14 will drive multiple stirring shafts 18 to rotate. The rotation of the multiple stirring shafts 18 can easily stir the unsaturated resin raw material in the inner cavity of the production reactor 1, thereby promoting uniform heating of the unsaturated resin raw material and accelerating the reaction efficiency during production. At the same time as the rotating shaft 14 rotates, it will also drive the first U-shaped support 15 and the second U-shaped support 16 to rotate. The rotation of the first U-shaped support 15 and the second U-shaped support 16 can easily drive the corresponding scraper 17 to scrape on the inner wall of the production reactor 1, thereby scraping off the unsaturated resin raw material adhering to the inner wall of the production reactor 1. This can effectively prevent the unsaturated resin raw material from sticking to the inner wall of the production reactor 1, ensuring that each part of the unsaturated resin raw material can be heated evenly, thereby improving the consistency of product quality.

[0026] In this embodiment, a heating water tank 9 is provided at the front end of the production reactor 1. A second support frame 8 is fixedly connected to the lower end of the heating water tank 9. A water pump 19 is fixedly installed at the lower end of the inner wall of the heating water tank 9. A water inlet pipe 10 is fixedly connected to the upper end of the water pump 19. The water inlet pipe 10 is fixedly connected to one end of the circulating heating pipe 2. The other end of the circulating heating pipe 2 is fixedly connected to a water outlet pipe 11. The other end of the water outlet pipe 11 is located in the inner cavity of the heating water tank 9.

[0027] Specifically, the water in the inner cavity of the heating water tank 9 is heated by starting the heating water tank 9, and the water pump 19 is started at the same time. The water pump 19 draws the hot water in the heating water tank 9 into the circulating heating pipe 2 spirally wound on the outside of the production reactor 1 through the water inlet pipe 10. At this time, through the principle of heat exchange, the heat carried by the hot water in the circulating heating pipe 2 can be transferred through the outer shell of the production reactor 1 to the unsaturated resin raw material in the inner cavity of the production reactor 1, thereby heating the unsaturated resin raw material. After heating, the hot water in the circulating heating pipe 2 returns to the heating water tank 9 through the water outlet pipe 11, realizing the recycling of hot water.

[0028] In this embodiment, the discharge assembly includes a discharge pipe 5, which is fixedly connected to the lower end of the hopper 4, and a discharge control valve 6 is provided on the outside of the discharge pipe 5.

[0029] Specifically, after the unsaturated resin has completed the heating reaction, the unsaturated resin can be discharged from the inner cavity of the production reactor 1 through the discharge control valve 6.

[0030] In this embodiment, a first support frame 7 is fixedly connected to the lower outer side of the production reactor 1.

[0031] Specifically, the design of the first support frame 7 can improve the overall stability of the production reactor 1.

[0032] In this embodiment, a mounting block 13 is fixedly connected to the outside of the drive motor 12, and the mounting block 13 is fixedly installed on the upper end of the production reactor 1.

[0033] Specifically, the design of mounting block 13 can improve the stability of drive motor 12 during operation.

[0034] It should be noted that this utility model is a heating device for the production of unsaturated resin. The user injects the unsaturated resin raw material for production into the inner cavity of the production reactor 1 through the feed pipe 3. At this time, the water in the inner cavity of the heating water tank 9 is heated by starting the heating water tank 9. At the same time, the water pump 19 is started. The water pump 19 draws the hot water in the heating water tank 9 into the circulating heating pipe 2 spirally wound on the outside of the production reactor 1 through the water inlet pipe 10. At this time, through the principle of heat exchange, the heat carried by the hot water in the circulating heating pipe 2 can be transferred to the unsaturated resin raw material in the inner cavity of the production reactor 1 through the outer shell of the production reactor 1, thereby heating the unsaturated resin raw material. After heating, the hot water in the circulating heating pipe 2 returns to the heating water tank 9 through the water outlet pipe 11 to realize the recycling of hot water. At this time, the drive motor 12 is started. The output end of the drive motor 12 will drive the rotating shaft 14 to rotate. The rotation of the rotating shaft 14 will drive multiple Multiple stirring shafts 18 rotate, which facilitates the stirring of the unsaturated resin raw material inside the production reactor 1. This promotes uniform heating of the unsaturated resin raw material and accelerates the reaction efficiency during production. Simultaneously, the rotation of the rotating shaft 14 also drives the first U-shaped support 15 and the second U-shaped support 16 to rotate. This rotation facilitates the scraper 17 to scrape the inner wall of the production reactor 1, removing any unsaturated resin raw material adhering to the inner wall. This effectively prevents the unsaturated resin raw material from adhering to the inner wall of the production reactor 1, ensuring uniform heating of each portion of the unsaturated resin raw material and improving product quality consistency. After the heating reaction is complete, the unsaturated resin can be discharged from the inner cavity of the production reactor 1 through the discharge pipe 5 by opening the discharge control valve 6. This method is quite practical.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heating device for producing unsaturated resin, comprising a production reactor (1), characterized in that: The outer side of the production reactor (1) is spirally wound with a circulating heating pipe (2), the upper end of the production reactor (1) is fixedly connected with a feed pipe (3), the inner cavity of the production reactor (1) is provided with a stirring assembly, the lower end of the production reactor (1) is fixedly connected with a collecting hopper (4), and the lower end of the collecting hopper (4) is provided with a discharge assembly.

2. The heating device for unsaturated resin production according to claim 1, characterized in that: The stirring assembly includes a drive motor (12), which is located at the upper end of the production reactor (1). The output end of the drive motor (12) is fixedly connected to a rotating shaft (14), which is rotatably connected to the production reactor (1). Multiple stirring shafts (18) are fixedly connected to the outer side of the rotating shaft (14), and the stirring shafts (18) are all located in the inner cavity of the production reactor (1).

3. The heating device for unsaturated resin production according to claim 2, characterized in that: The outer side of the rotating shaft (14) is fixedly connected to a first U-shaped bracket (15) and a second U-shaped bracket (16) that are relatively symmetrical. The ends of the first U-shaped bracket (15) and the second U-shaped bracket (16) that are far apart are fixedly connected to scrapers (17). Both scrapers (17) are in contact with the inner wall of the production reactor (1).

4. The heating device for unsaturated resin production according to claim 1, characterized in that: The production reactor (1) is provided with a heating water tank (9) at the front end. The lower end of the heating water tank (9) is fixedly connected to a second support frame (8). A water pump (19) is fixedly installed on the lower end of the inner wall of the heating water tank (9). The upper end of the water pump (19) is fixedly connected to an inlet pipe (10). The inlet pipe (10) is fixedly connected to one end of a circulating heating pipe (2). The other end of the circulating heating pipe (2) is fixedly connected to an outlet pipe (11). The other end of the outlet pipe (11) is located in the inner cavity of the heating water tank (9).

5. The heating device for unsaturated resin production according to claim 1, characterized in that: The discharge assembly includes a discharge pipe (5), which is fixedly connected to the lower end of the hopper (4), and a discharge control valve (6) is provided on the outside of the discharge pipe (5).

6. The heating device for unsaturated resin production according to claim 1, characterized in that: The lower outer side of the production reactor (1) is fixedly connected to a first support frame (7).

7. A heating device for producing unsaturated resin according to claim 2, characterized in that: A mounting block (13) is fixedly connected to the outside of the drive motor (12), and the mounting block (13) is fixedly installed on the upper end of the production reactor (1).

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