Dicyandiamide catalytic curing acceleration reaction kettle

Abstract

The utility model belongs to the technical field of reaction kettle, concretely relates to a dicyandiamide catalytic solidification acceleration reaction kettle, including kettle body and hollow kettle cover, the hollow kettle cover sets up at the top of kettle body, the top of kettle body and the bottom of hollow kettle cover all are fixedly connected with flange, two the flange is fixedly connected through bolt, the middle part of hollow kettle cover is provided with stirring assembly, the bottom of stirring assembly extends to the inside of kettle body, the kettle body includes inner bag and shell, the shell is fixedly connected at the outer wall of inner bag. The utility model, when temperature adjustment, hot oil is injected to the inside of hollow interlayer, overflows to the inside of semicircular pipe from the top of hollow interlayer, then overflows to the inside of temperature adjustment layer through the through -hole on semicircular pipe, hot oil liquid circulates and flows in the inside of temperature adjustment layer, constant temperature heats the material in the inside of inner bag, the through -hole on semicircular pipe is evenly distributed, can evenly temperature adjustment to the lateral wall of inner bag, improves the uniformity of temperature adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of reaction vessel technology, specifically relating to a dicyandiamide catalytic curing accelerated reaction vessel. Background Technology

[0002] In a broad sense, a reaction vessel is a container that undergoes physical or chemical reactions. Through structural design and parameter configuration, it achieves the heating, evaporation, cooling, and low-to-high-speed mixing functions required by the process. Reaction vessels are widely used in petroleum, chemical, rubber, pesticide, dye, pharmaceutical, and food industries. The materials generally include carbon manganese steel, stainless steel, zirconium, nickel-based alloys (Hastelloy, Monel, Inconel) and other composite materials. The curing reaction of dicyandiamide and epoxy resin is a common latent curing system, which is widely used in coatings, composite materials, electronic packaging, and other fields.

[0003] The curing reaction of dicyandiamide and epoxy resin requires a stable reaction temperature, generally between 150°C and 180°C. The commonly used reactor has a hollow jacketed structure for its heating chamber. During heating, hot oil at a certain temperature is injected into the jacket from the oil inlet pipe at the top of the jacket and then flows out from the drain pipe at the bottom of the jacket, thus forming a circulation to heat the material inside the reactor. However, because the oil inlet is fixed and singular, the temperature above the oil inlet is relatively higher than that below, resulting in a small temperature difference between the upper and lower parts of the reactor, which can easily lead to uneven reaction of the material inside the reactor. Utility Model Content

[0004] The purpose of this invention is to provide a dicyandiamide catalytic curing accelerated reaction vessel that can uniformly regulate the temperature of the inner liner sidewall, thereby improving the uniformity of temperature regulation and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dicyandiamide catalytic curing accelerated reaction vessel, comprising a vessel body and a hollow vessel cover, wherein the hollow vessel cover is disposed at the top of the vessel body, and flanges are fixedly connected to both the top of the vessel body and the bottom of the hollow vessel cover, and the two flanges are fixedly connected by bolts; a stirring assembly is disposed in the middle of the hollow vessel cover, and the bottom of the stirring assembly extends into the interior of the vessel body; the vessel body comprises an inner liner and an outer shell, the outer shell is fixedly connected to the outer wall of the inner liner, a temperature regulating assembly is fixedly connected to the outer wall of the inner liner, a temperature regulating layer is formed between the inner liner and the temperature regulating assembly, and a vacuum insulation layer is formed between the temperature regulating assembly and the outer shell.

[0006] Furthermore, a discharge valve is provided at the bottom of the inner liner, and the side wall of the discharge valve is fixedly connected to the bottom of the outer shell.

[0007] Furthermore, a thermometer is fixedly connected to the side wall of the outer shell, with one end of the thermometer extending into the interior of the inner liner.

[0008] Furthermore, the top of the side wall of the hollow reactor lid is fixedly connected with equidistant feed pipes, the bottom end of which extends into the interior of the hollow reactor lid, and a pressure gauge is provided in the middle of the hollow reactor lid.

[0009] Furthermore, the stirring assembly includes a support tube fixedly connected to the center of the hollow vessel lid. A rotating shaft is rotatably connected inside the support tube via a sealed bearing. A geared motor is fixedly connected to the top of the support tube. The output shaft of the geared motor is fixedly connected to the top of the rotating shaft. Equally spaced stirring blades are fixedly installed on the side wall of the rotating shaft.

[0010] Furthermore, the temperature control component includes an outer layer and an inner layer fixedly connected to the side wall of the inner liner, with a hollow interlayer between the outer layer and the inner layer. The inner wall of the inner layer is fixedly connected with equidistantly distributed semi-circular tubes, the top of which communicates with the hollow interlayer, and the side wall of which is provided with equidistantly distributed through holes.

[0011] Furthermore, the bottom of the outer shell sidewall is provided with an inlet pipe and an outlet pipe, one end of the inlet pipe is connected to the hollow interlayer, and one end of the outlet pipe is connected to the temperature regulating layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: During temperature adjustment, after hot oil is injected into the hollow jacket, it overflows from the top of the hollow jacket into the interior of the semi-circular tube, and then overflows into the interior of the temperature-regulating layer through the through holes on the semi-circular tube. The hot oil circulates inside the temperature-regulating layer, heating the material inside the inner liner at a constant temperature. The through holes on the semi-circular tube are evenly distributed, which can evenly regulate the temperature of the side wall of the inner liner and improve the uniformity of temperature regulation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This utility model Figure 2 A cross-sectional view of the AA plane; Figure 4 This utility model Figure 3 A magnified structural diagram of part A in the middle.

[0014] The attached diagram lists the components represented by each number as follows: 1. Kettle body; 11. Inner liner; 12. Outer shell; 13. Discharge valve; 14. Thermometer; 2. Hollow kettle cover; 21. Feed pipe; 22. Pressure gauge; 3. Flange; 4. Stirring assembly; 41. Support pipe; 42. Gear motor; 43. Rotating shaft; 44. Stirring blade; 5. Temperature control assembly; 51. Outer layer; 52. Inner layer; 53. Hollow jacket; 54. Semi-circular tube; 55. Through hole; 6. Vacuum insulation layer; 7. Temperature control layer; 8. Liquid inlet pipe; 9. Liquid outlet pipe. Detailed Implementation

[0015] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0016] like Figure 1-3 As shown, a dicyandiamide catalytic curing accelerated reaction vessel includes a vessel body 1 and a hollow vessel cover 2. The hollow vessel cover 2 is located at the top of the vessel body 1. Flanges 3 are fixedly connected to both the top of the vessel body 1 and the bottom of the hollow vessel cover 2. The two flanges 3 are fixedly connected by bolts. A stirring assembly 4 is provided in the middle of the hollow vessel cover 2. The bottom of the stirring assembly 4 extends into the interior of the vessel body 1. The vessel body 1 includes an inner liner 11 and an outer shell 12. The outer shell 12 is fixedly connected to the outer wall of the inner liner 11. A temperature regulating assembly 5 is fixedly connected to the outer wall of the inner liner 11. A temperature regulating layer 7 is between the inner liner 11 and the temperature regulating assembly 5. A vacuum insulation layer 6 is between the temperature regulating assembly 5 and the outer shell 12.

[0017] According to the above structure, during use, dicyandiamide, epoxy resin and accelerator are put into the inside of the reactor body 1. During the curing reaction, the material inside the reactor body 1 is heated at a constant temperature by the temperature control component 5, so that the material inside the reactor body 1 can carry out the curing reaction. During the reaction, the material inside the reactor body 1 is stirred by the stirring component 4, so that the temperature of the material inside the reactor body 1 is uniform and the reaction efficiency is improved.

[0018] like Figure 1-3 As shown, a discharge valve 13 is provided at the bottom of the inner liner 11. The side wall of the discharge valve 13 is fixedly connected to the bottom of the outer shell 12. A thermometer 14 is fixedly connected to the side wall of the outer shell 12. One end of the thermometer 14 extends into the interior of the inner liner 11. An equally spaced feed pipe 21 is fixedly connected to the top of the side wall of the hollow kettle cover 2. The bottom end of the feed pipe 21 extends into the interior of the hollow kettle cover 2. A pressure gauge 22 is provided in the middle of the hollow kettle cover 2.

[0019] According to the above structure, during the reaction, the material is fed into the inner liner 11 through the feed pipe 21 at the top of the hollow kettle lid 2. During the reaction, the pressure gauge 22 can monitor the pressure inside the reactor, and the thermometer 14 can monitor the temperature of the material inside the inner liner 11, so as to facilitate the adjustment of the temperature of the material inside the inner liner 11. After the reaction is completed, the discharge valve 13 is opened to discharge the material inside the inner liner 11.

[0020] like Figure 2 and 3 As shown, the stirring assembly 4 includes a support tube 41 fixedly connected to the middle of the hollow kettle cover 2. The inside of the support tube 41 is rotatably connected to a rotating shaft 43 through a sealed bearing. A reduction motor 42 is fixedly connected to the top of the support tube 41. The output shaft of the reduction motor 42 is fixedly connected to the top of the rotating shaft 43. Equally spaced stirring blades 44 are fixedly installed on the side wall of the rotating shaft 43.

[0021] According to the above structure, during the reaction, the geared motor 42 drives the rotating shaft 43 to rotate, and the rotating shaft 43 drives the stirring blade 44 to rotate to mix and stir the material inside the inner liner 11, which can make the temperature of the material more uniform.

[0022] like Figure 3 and 4 As shown, the temperature control component 5 includes an outer layer 51 and an inner layer 52 fixedly connected to the side wall of the inner liner 11. A hollow interlayer 53 is located between the outer layer 51 and the inner layer 52. The inner wall of the inner layer 52 is fixedly connected with equidistantly distributed semi-circular tubes 54. The top end of the semi-circular tubes 54 is connected to the hollow interlayer 53. The side wall of the semi-circular tubes 54 is provided with equidistantly distributed through holes 55. The bottom of the side wall of the outer shell 12 is provided with an inlet pipe 8 and an outlet pipe 9. One end of the inlet pipe 8 is connected to the hollow interlayer 53, and one end of the outlet pipe 9 is connected to the temperature control layer 7.

[0023] According to the above structure, one end of the liquid inlet pipe 8 and the liquid outlet pipe 9 are respectively connected to a T-shaped pipe. The two ends of the liquid inlet pipe 8 and the T-shaped pipe are respectively connected to the hot oil pipeline and the cold oil pipeline. During the reaction, oil at 150-180 degrees Celsius is introduced into the liquid inlet pipe 8. The hot oil enters the hollow jacket 53. After the hot oil is injected into the hollow jacket 53, it overflows from the top of the hollow jacket 53 into the interior of the semi-circular pipe 54, and then overflows into the interior of the temperature regulating layer 7 through the through hole 55. The hot oil circulates in the interior of the temperature regulating layer 7, heating the material inside the inner liner 11 at a constant temperature. After the reaction is completed, cold oil is injected into the interior of the hollow jacket 53 through the liquid inlet pipe 8, and then flows into the interior of the temperature regulating layer 7 to cool the material inside the inner liner 11. When the oil is injected, the oil flows into the interior of the temperature regulating layer 7 through the through hole 55, which can uniformly regulate the temperature of the side wall of the inner liner 11 and improve the uniformity of temperature regulation.

[0024] The working principle of this utility model is as follows: During the reaction, materials are fed into the inner liner 11 through the feed pipe 21 at the top of the hollow kettle lid 2. During the reaction, the pressure gauge 22 can monitor the pressure inside the reactor, and the thermometer 14 can monitor the temperature of the materials inside the inner liner 11, thus facilitating the adjustment of the temperature of the materials inside the inner liner 11. After the reaction is completed, the discharge valve 13 is opened to discharge the materials inside the inner liner 11. During the reaction, the geared motor 42 drives the rotating shaft 43 to rotate, and the rotating shaft 43 drives the stirring blade 44 to rotate to mix and stir the materials inside the inner liner 11, which can make the temperature of the materials more uniform. One end of the liquid inlet pipe 8 and the liquid outlet pipe 9 are respectively connected to the T-shaped pipe. The two ends of the liquid inlet pipe 8 and the T-shaped pipe are respectively connected to the hot oil pipe and the cold oil pipe. When the reaction is complete, oil at 150-180 degrees Celsius is introduced into the inlet pipe 8, allowing the hot oil to enter the hollow jacket 53. After being injected into the hollow jacket 53, the hot oil overflows from the top of the hollow jacket 53 into the semi-circular pipe 54, and then overflows through the through hole 55 into the temperature regulating layer 7. The hot oil circulates within the temperature regulating layer 7, maintaining a constant temperature to heat the material inside the inner liner 11. After the reaction is complete, cold oil is injected into the hollow jacket 53 through the inlet pipe 8, and then flows into the temperature regulating layer 7 to cool the material inside the inner liner 11. When the oil is injected, it flows through the through hole 55 into the temperature regulating layer 7, which can evenly regulate the temperature of the side wall of the inner liner 11 and improve the uniformity of temperature regulation.

[0025] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A dicyandiamide catalytic curing accelerated reaction vessel, comprising a vessel body (1) and a hollow vessel lid (2), characterized in that: The hollow vessel lid (2) is located at the top of the vessel body (1). Flanges (3) are fixedly connected to both the top of the vessel body (1) and the bottom of the hollow vessel lid (2). The two flanges (3) are fixedly connected by bolts. A stirring assembly (4) is provided in the middle of the hollow vessel lid (2). The bottom of the stirring assembly (4) extends into the interior of the vessel body (1). The vessel body (1) includes an inner liner (11) and an outer shell (12). The outer shell (12) is fixedly connected to the outer wall of the inner liner (11). A temperature regulating assembly (5) is fixedly connected to the outer wall of the inner liner (11). A temperature regulating layer (7) is between the inner liner (11) and the temperature regulating assembly (5). A vacuum insulation layer (6) is between the temperature regulating assembly (5) and the outer shell (12).

2. The dicyandiamide catalytic curing accelerated reaction vessel according to claim 1, characterized in that: The bottom of the inner liner (11) is provided with a discharge valve (13), and the side wall of the discharge valve (13) is fixedly connected to the bottom of the outer shell (12).

3. The dicyandiamide catalytic curing accelerated reaction vessel according to claim 1, characterized in that: A thermometer (14) is fixedly connected to the side wall of the outer shell (12), and one end of the thermometer (14) extends into the interior of the inner liner (11).

4. The dicyandiamide catalytic curing accelerated reaction vessel according to claim 1, characterized in that: The top of the side wall of the hollow autoclave cover (2) is fixedly connected with equidistant feed pipes (21), the bottom end of the feed pipes (21) extends into the interior of the hollow autoclave cover (2), and a pressure gauge (22) is provided in the middle of the hollow autoclave cover (2).

5. The dicyandiamide catalytic curing accelerated reaction vessel according to claim 1, characterized in that: The stirring assembly (4) includes a support tube (41) fixedly connected to the middle of the hollow kettle cover (2). The inside of the support tube (41) is rotatably connected to a rotating shaft (43) through a sealed bearing. A reduction motor (42) is fixedly connected to the top of the support tube (41). The output shaft of the reduction motor (42) is fixedly connected to the top of the rotating shaft (43). Equally spaced stirring blades (44) are fixedly installed on the side wall of the rotating shaft (43).

6. The dicyandiamide catalytic curing accelerated reaction vessel according to claim 1, characterized in that: The temperature control component (5) includes an outer layer (51) and an inner layer (52) fixedly connected to the side wall of the inner liner (11). There is a hollow interlayer (53) between the outer layer (51) and the inner layer (52). The inner wall of the inner layer (52) is fixedly connected with equidistant semi-circular tubes (54). The top end of the semi-circular tubes (54) is connected to the hollow interlayer (53). The side wall of the semi-circular tubes (54) is provided with equidistant through holes (55).

7. The dicyandiamide catalytic curing accelerated reaction vessel according to claim 1, characterized in that: The bottom of the side wall of the outer shell (12) is provided with an inlet pipe (8) and an outlet pipe (9). One end of the inlet pipe (8) is connected to the hollow interlayer (53), and one end of the outlet pipe (9) is connected to the temperature regulating layer (7).

Images