Vacuum dehydration device for curing agent production

Abstract

The utility model discloses a vacuum dehydration device for curing agent production, which relates to the technical field of curing agent production and comprises a dehydration tank, a tank cover for blocking a top end port of the dehydration tank is arranged at the top of the dehydration tank, an openable switch cover is hinged to the tank cover, and an exhaust pipe communicated with an inner cavity of the dehydration tank is further arranged on the tank cover. The exhaust pipe is connected with a vacuum pump through an exhaust pipe, a discharging pipe is arranged at the bottom of the dehydration tank, a jacket is arranged on the outer wall of the dehydration tank, a cavity is formed between the inner wall of the jacket and the outer wall of the dehydration tank, an electric heating coil is arranged in the cavity, and a heat insulation plate is installed in the cavity in a sliding mode; the top end of the electric heating coil is connected with the heat insulation plate. The heating area can be dynamically adjusted according to the liquid level, the uniform heating characteristic of the spirally-wound electric heating coil is combined, and compared with a traditional overall heating mode, energy waste is remarkably reduced, and the energy utilization efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of curing agent production technology, specifically a vacuum dehydration device for curing agent production. Background Technology

[0002] Vacuum dehydration is a crucial step in the production of curing agents. Its purpose is to effectively remove moisture from the raw materials or intermediate products of the curing agent, thereby ensuring the quality and performance stability of the finished product. Insufficient dehydration can lead to residual moisture, causing deterioration and performance degradation during storage and use, severely impacting its application. In the field of curing agent production, the vacuum dehydration process directly affects product quality; by removing moisture from raw materials or intermediate products, it ensures the stability of the curing agent's performance. Poor dehydration results in residual moisture, causing deterioration and performance degradation during storage and use, significantly affecting its application.

[0003] However, this traditional heating method has significant drawbacks. As the dehydration process progresses, the liquid level inside the tank continuously decreases, but the overall heating mode does not adjust accordingly to the changes in liquid level. This results in the tank walls and upper space, which are now empty of material, continuing to be heated, causing a large amount of heat energy to be wasted and resulting in low energy utilization efficiency.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum dehydration device for the production of curing agents, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a vacuum dehydration device for producing curing agents, including a dehydration tank. The top of the dehydration tank is provided with a tank cover that seals its top port. The tank cover is hinged with an openable switch cover. The tank cover is also provided with an exhaust pipe that communicates with the inner cavity of the dehydration tank. The exhaust pipe is connected to a vacuum pump through a suction pipe. The bottom of the dehydration tank is provided with a discharge pipe. A jacket is provided on the outer wall of the dehydration tank. A cavity is formed between the inner wall of the jacket and the outer wall of the dehydration tank. An electric heating coil is provided inside the cavity. A heat insulation plate is slidably installed inside the cavity. The top of the electric heating coil is connected to the heat insulation plate. An electric push rod is installed on the inner top wall of the jacket to push the heat insulation plate to slide along the cavity.

[0007] Furthermore, a stirring shaft is rotatably mounted on the tank lid, a stirring rod is mounted on the outer wall of the stirring shaft, and a stirring motor for driving the stirring shaft to rotate is mounted on the top surface of the tank lid.

[0008] Furthermore, the stirring rod includes a transverse rod connected to the outer wall of the stirring shaft and a longitudinal rod connected to the outer wall of the transverse rod.

[0009] Furthermore, the heating coil is spirally wound around the outer wall of the dehydration tank.

[0010] Furthermore, the heat insulation plate has a circular ring structure, with the inner ring of the heat insulation plate fitting against the outer wall of the dehydration tank and the outer ring of the heat insulation plate fitting against the inner wall of the jacket.

[0011] Furthermore, the bottom of the dehydration tank is equipped with support legs, and multiple support legs are provided, which are equidistantly distributed along the circumference of the bottom surface of the dehydration tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the coordinated operation of its components, effectively overcomes the problems existing in traditional vacuum dehydration devices for curing agents. In terms of energy saving, the electric push rod, in conjunction with the heat insulation plate, can dynamically adjust the heating zone according to the liquid level. Combined with the uniform heating characteristics of the spirally wound heating coil, compared with the traditional overall heating method, it significantly reduces energy waste and greatly improves energy utilization efficiency.

[0014] 2. In terms of ensuring dehydration quality, this utility model uses a stirring motor to drive a three-dimensional stirring rod to fully stir the material. Combined with a precisely adjustable heating zone and a uniform heating method, it effectively avoids local overheating or undercooling of the material, ensuring uniform heating, accelerating moisture evaporation, improving dehydration efficiency, and guaranteeing the stability of the curing agent product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the right-side structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0017] Figure 3 This is a side view structural diagram of the present invention;

[0018] Figure 4 For along Figure 3 A schematic diagram of the cross-sectional structure of the central section AA.

[0019] In the diagram: 1. Dehydration tank; 2. Support leg; 3. Tank lid; 4. Switch cover; 5. Stirring motor; 6. Exhaust pipe; 7. Suction pipe; 8. Vacuum pump; 9. Stirring shaft; 10. Horizontal rod; 11. Longitudinal rod; 12. Discharge pipe; 13. Jacket; 14. Cavity; 15. Heating coil; 16. Heat insulation plate; 17. Electric push rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a vacuum dehydration device for producing curing agents, including a dehydration tank 1, a tank cover 3 that seals the top end of the dehydration tank 1, a hinged switch cover 4 on the tank cover 3, an exhaust pipe 6 that communicates with the inner cavity of the dehydration tank 1 on the tank cover 3, a vacuum pump 8 connected to the exhaust pipe 6 through a suction pipe 7, a discharge pipe 12 at the bottom of the dehydration tank 1, a jacket 13 on the outer wall of the dehydration tank 1, a cavity 14 formed between the inner wall of the jacket 13 and the outer wall of the dehydration tank 1, an electric heating coil 15 inside the cavity 14, a heat insulation plate 16 slidably installed inside the cavity 14, the top end of the electric heating coil 15 connected to the heat insulation plate 16, and an electric push rod 17 that pushes the heat insulation plate 16 to slide along the cavity 14 installed on the inner top wall of the jacket 13.

[0022] Specifically, during the vacuum dehydration of the curing agent, the lid 3 seals the top port of the dehydration tank 1, forming a closed space. Material addition and other operations can be performed by opening and closing the lid 4. The vacuum pump 8 is started, and air is extracted from the dehydration tank 1 through the suction pipe 7 and exhaust pipe 6, creating a vacuum environment, lowering the boiling point of water, and facilitating moisture evaporation. After dehydration is complete, the discharge pipe 12 is opened to discharge the curing agent. Within the cavity 14 between the inner wall of the jacket 13 and the outer wall of the dehydration tank 1, the heating coil 15 is energized to heat the dehydration tank 1, promoting moisture evaporation. The electric push rod 17 can push the heat insulation plate 16 to slide along the cavity 14. When the liquid level in the tank drops, the electric push rod 17 pushes the heat insulation plate 16 to move upward, so that the heating area of ​​the electric heating coil 15 drops synchronously with the liquid level, heating only the part with material. Compared with the traditional overall heating method in the background technology, this structure, through the cooperation of the electric push rod 17 and the heat insulation plate 16, can dynamically adjust the heating area according to the liquid level change, avoiding heating the area without material, significantly reducing energy waste and improving energy utilization efficiency. The combination of the tank cover 3, the switch cover 4, the exhaust pipe 6, the suction pipe 7 and the vacuum pump 8 can effectively create a vacuum environment to ensure the dehydration effect. The discharge pipe 12 facilitates the discharge of material. The jacket 13, the cavity 14 and the electric heating coil 15 constitute the heating system, providing the heat required for dehydration.

[0023] As a technical optimization of this utility model, a stirring shaft 9 is rotatably mounted on the can lid 3, a stirring rod is mounted on the outer wall of the stirring shaft 9, and a stirring motor 5 for driving the stirring shaft 9 to rotate is mounted on the top surface of the can lid 3.

[0024] Specifically, after the stirring motor 5 starts, it drives the stirring shaft 9 to rotate on the tank cover 3. The stirring rod on the stirring shaft 9 rotates accordingly, stirring the curing agent raw material or intermediate product in the dehydration tank 1. The stirring action of the stirring rod can make the material heat more evenly, avoid local overheating or overcooling, solve the problem of difficult precise temperature control of overall heating in the background technology, and improve the dehydration quality and product quality. At the same time, stirring helps to accelerate the evaporation of water and improve the dehydration efficiency.

[0025] As a technical optimization of this utility model, the stirring rod includes a transverse rod 10 connected to the outer wall of the stirring shaft 9 and a longitudinal rod 11 connected to the outer wall of the transverse rod 10.

[0026] Specifically, the transverse rod 10 is connected to the outer wall of the stirring shaft 9, and the longitudinal rod 11 is connected to the outer wall of the transverse rod 10. When the stirring shaft 9 rotates, the transverse rod 10 and the longitudinal rod 11 form a three-dimensional stirring structure to stir the material in all directions. Compared with a simple stirring structure, the three-dimensional stirring rod composed of the transverse rod 10 and the longitudinal rod 11 can stir the material more thoroughly, further improve the uniformity of material mixing and heating, optimize the dehydration effect, and ensure the quality of the curing agent product.

[0027] As a technical optimization of this utility model, the heating coil 15 is spirally wound around the outer wall of the dehydration tank 1.

[0028] Specifically, when the heating coil 15 spirally wound around the outer wall of the dehydration tank 1 is energized, it can form a continuous heating area on the outer wall of the dehydration tank 1, and heat the dehydration tank 1 evenly. Compared with other arrangements, this spiral winding method can transfer heat to the dehydration tank 1 and the internal material more evenly, avoid the problem of large local temperature differences, and can more accurately control the heating temperature of the material, improve the dehydration quality, and reduce energy waste.

[0029] As a technical optimization of this utility model, the heat insulation plate 16 has a circular ring structure, the inner ring of the heat insulation plate 16 is attached to the outer wall of the dehydration tank 1, and the outer ring of the heat insulation plate 16 is attached to the inner wall of the jacket 13.

[0030] Specifically, the annular heat insulation plate 16 has its inner ring fitted to the outer wall of the dehydration tank 1 and its outer ring fitted to the inner wall of the jacket 13. Under the push of the electric push rod 17, it slides along the cavity 14, which can effectively block the upward transfer of heat and retain the heating of only the area with material below. The good fit ensures the heat insulation effect of the heat insulation plate 16 and prevents heat loss to the area without material, further improving energy utilization efficiency. In conjunction with the electric push rod 17, the heating area can be flexibly adjusted to adapt to different liquid level changes, which greatly reduces energy consumption compared with the overall heating in the background technology.

[0031] As a technical optimization of this utility model, a support leg 2 is installed at the bottom of the dehydration tank 1. Multiple support legs 2 are provided, and the multiple support legs 2 are distributed equidistantly along the bottom surface of the dehydration tank 1.

[0032] Specifically, multiple support legs 2, equidistantly distributed along the bottom circumference of the dehydration tank 1, provide support to the dehydration tank 1 from multiple directions, ensuring that the dehydration tank 1 remains stable during operation. Stable support can prevent the dehydration tank 1 from being affected by shaking or other factors, thus ensuring the normal operation of the equipment and the smooth progress of the dehydration operation. At the same time, it can extend the service life of the equipment and reduce safety hazards caused by equipment instability.

[0033] Working principle: During the vacuum dehydration process in the production of the curing agent, material is first added to the dehydration tank 1 through the opening and closing cover 4. Then, the tank cover 3 seals the top port of the dehydration tank 1, forming a closed dehydration space. The vacuum pump 8 is started, which extracts air from the dehydration tank 1 through the suction pipe 7 and the exhaust pipe 6, quickly creating a vacuum environment, lowering the boiling point of water, and creating favorable conditions for water evaporation.

[0034] At this time, the heating coil 15 in the cavity 14 between the inner wall of the jacket 13 and the outer wall of the dehydration tank 1 is energized and heats up, heating the dehydration tank 1 and promoting the evaporation of moisture in the material inside. The stirring motor 5 drives the stirring shaft 9 to rotate, and the stirring rod on the stirring shaft 9, composed of the horizontal rod 10 and the vertical rod 11, stirs the material in all directions, making the material heated more evenly and accelerating the evaporation of moisture.

[0035] As the dehydration process progresses, the liquid level inside the tank gradually decreases. The electric push rod 17 pushes the heat insulation plate 16 to slide downwards along the cavity 14, causing the heating area of ​​the electric heating coil 15 to move downwards synchronously, ensuring that only the part containing material is heated. After dehydration is complete, the discharge pipe 12 is opened to discharge the processed curing agent. Multiple support legs 2, equidistantly distributed along the circumference of the bottom surface of the dehydration tank 1, provide stable support to the dehydration tank 1 from multiple directions, ensuring stable operation of the equipment throughout the entire dehydration process.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vacuum dehydration apparatus for producing a curing agent, comprising a dehydration tank (1), characterized in that: The dehydration tank (1) is provided with a tank cover (3) at the top to seal its top port. The tank cover (3) is hinged with an openable switch cover (4). The tank cover (3) is also provided with an exhaust pipe (6) that communicates with the inner cavity of the dehydration tank (1). The exhaust pipe (6) is connected to a vacuum pump (8) through a suction pipe (7). The bottom of the dehydration tank (1) is provided with a discharge pipe (12). The outer wall of the dehydration tank (1) is provided with a jacket (13). A cavity (14) is formed between the inner wall of the jacket (13) and the outer wall of the dehydration tank (1). An electric heating coil (15) is provided inside the cavity (14). A heat insulation plate (16) is slidably installed inside the cavity (14). The top of the electric heating coil (15) is connected to the heat insulation plate (16). An electric push rod (17) is installed on the inner top wall of the jacket (13) to push the heat insulation plate (16) to slide along the cavity (14).

2. The vacuum dehydration device for producing curing agents as described in claim 1, characterized in that: A stirring shaft (9) is rotatably mounted on the lid (3), a stirring rod is mounted on the outer wall of the stirring shaft (9), and a stirring motor (5) for driving the stirring shaft (9) to rotate is mounted on the top surface of the lid (3).

3. The vacuum dehydration device for producing curing agents as described in claim 2, characterized in that: The stirring rod includes a transverse rod (10) connected to the outer wall of the stirring shaft (9) and a longitudinal rod (11) connected to the outer wall of the transverse rod (10).

4. The vacuum dehydration apparatus for producing curing agents as described in claim 1, characterized in that: The heating coil (15) is spirally wound around the outer wall of the dehydration tank (1).

5. The vacuum dehydration apparatus for producing curing agents as described in claim 1, characterized in that: The heat insulation plate (16) has a circular ring structure. The inner ring of the heat insulation plate (16) is attached to the outer wall of the dehydration tank (1), and the outer ring of the heat insulation plate (16) is attached to the inner wall of the jacket (13).

6. The vacuum dehydration apparatus for producing curing agents as described in claim 1, characterized in that: The bottom of the dehydration tank (1) is equipped with support legs (2), and multiple support legs (2) are provided, which are equidistantly distributed along the bottom surface of the dehydration tank (1).

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