Epoxy resin separation and purification device

Abstract

The utility model discloses an epoxy resin separation and purification device, which relates to the field of chemical raw material processing, and adopts the technical scheme that the epoxy resin separation and purification device comprises a distillation cylinder, the upper end of the distillation cylinder is connected with a gas guide pipe, a condensation pipe is fixed at the end, far away from the distillation cylinder, of the gas guide pipe, and a liquid storage barrel is connected with the end, far away from the gas guide pipe, of the condensation pipe; a support is fixed to the end, away from the distillation cylinder, of the heating base, a discharging pipe is fixed to the end, facing the support, of the distillation cylinder, a collecting cylinder is placed on the support, the discharging pipe is located above the collecting cylinder, a feeding pipe is connected to the side face of the distillation cylinder, an automatic control part is further arranged on the side face of the distillation cylinder, and a triggering part is slidably connected to the top of the distillation cylinder. The effects of automatically controlling the distillation process and improving the purification efficiency are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical raw material processing, specifically to an epoxy resin separation and purification device. Background Technology

[0002] Epoxy resin curing agent is a thermosetting plastic with high chemical resistance and strength. It is composed of epoxy resin monomers and curing agents, which react under certain conditions to form a polymer compound. In the industrial production process, the purity of epoxy resin has a crucial impact on the performance of epoxy resin curing agent. Therefore, it is necessary to improve the purity of epoxy resin to obtain high-purity epoxy resin curing agent.

[0003] Existing purification methods mostly involve distillation. This involves heating and stirring the epoxy resin in a distillation vessel to convert the impurities into a gaseous state, which is then condensed and separated to improve the purity of the epoxy resin. In actual purification processes, to further enhance purity, the impurities in the epoxy resin often need to be distilled twice. The first distillation separates most of the impurities, and the second distillation separates the remaining small portion. During the first distillation, the completion of the first distillation is often determined by observing whether condensate of gaseous impurities flows out. However, the condensation of gaseous impurities into a liquid state requires time, which undoubtedly leads to a lag in the observed completion time of the first distillation, affecting purification efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an epoxy resin separation and purification device that automatically controls the distillation process and improves purification efficiency.

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

[0006] The device includes a distillation cylinder, with a gas guide pipe connected to the upper end of the distillation cylinder. A condenser pipe is fixed to the end of the gas guide pipe away from the distillation cylinder, and a liquid storage tank is connected to the end of the condenser pipe away from the gas guide pipe. The device is characterized by having a heating base fixed to the bottom of the distillation cylinder, a support fixed to the heating base away from the distillation cylinder, a discharge pipe fixed to the end of the distillation cylinder facing the support, a collection cylinder placed on the support, the discharge pipe located above the collection cylinder, a feed pipe connected to the side of the distillation cylinder, an automatic control component located on the side of the distillation cylinder, and a trigger component slidably connected to the top of the distillation cylinder.

[0007] Furthermore, an electromagnetic valve is fixed to the outside of the feed pipe, a one-way membrane is fixed inside the feed pipe, the one-way membrane is positioned near the distillation cylinder, and an electric butterfly valve is fixed to the outside of the discharge pipe.

[0008] By adopting the above technical solution, the solenoid valve is used to control the opening and closing of the feed pipe, which is used for feeding epoxy resin or adding extractant when necessary. The electric butterfly valve is used to control the opening and closing of the discharge pipe. After the electric butterfly valve is opened, the solid resin remaining inside the distillation cylinder flows out to the collection cylinder through the discharge pipe.

[0009] Furthermore, the automatic control component includes a laser beam switch fixed to the side of the distillation cylinder, the laser beam switch having a transmitter and a receiver located on opposite sides of the distillation cylinder, and also includes a liquid level sensor module fixed to the side of the storage tank.

[0010] Furthermore, the laser beam switch is electrically connected to the electric butterfly valve, and the liquid level sensor module is electrically connected to the solenoid valve.

[0011] By adopting the above technical solution, after the space between the laser beam switches is filled with solid phase, the laser beam in the laser beam switches is blocked and affected, thereby triggering an electrical signal to control the electric butterfly valve to open, allowing the solid phase to flow out and be collected. At the same time, when the liquid level sensor module detects that the liquid level has reached its position, it triggers an electrical signal to control the solenoid valve to close. Thus, the combined use of the laser beam switches and the liquid level sensor module can control the entire distillation process to proceed automatically, reducing manual control and lowering labor costs.

[0012] Furthermore, the trigger includes a floating scale plate that slides inside the distillation cylinder, a movable rod fixed to the top of the floating scale plate, the movable rods being symmetrically arranged, the ends of the two movable rods extending away from the floating scale plate along the top of the distillation cylinder, a connecting plate fixed to the extended ends, a pin fixed to the connecting plate, and a support rod fixed to the bracket, with an alarm fixedly installed on the support rod.

[0013] Furthermore, a limit switch is screwed onto the support rod facing the connecting plate side. The limit switch is electrically connected to the alarm. After the pin moves upward, it comes into contact with the limit switch.

[0014] By adopting the above technical solution, the floating scale plate drives the connecting plate to move upward, and the ejector pin contacts the limit switch to control the alarm to open. At the initial time of distillation, the gas pushes the floating scale plate to move upward, and the alarm is automatically raised, avoiding the lag in the observation of the completion time of the first distillation and improving the purification efficiency.

[0015] In summary, the beneficial technical effects of this utility model are as follows:

[0016] 1. An automatic control component is adopted. After the solid phase fills the space between the laser beam switches, the laser beam in the laser beam switches is blocked and affected, which triggers an electrical signal to control the electric butterfly valve to open, allowing the solid phase to flow out and be collected. At the same time, when the liquid level sensor module detects that the liquid level has reached its position, it triggers an electrical signal to control the solenoid valve to close. Thus, the combined use of the laser beam switch and the liquid level sensor module can control the entire distillation process to proceed automatically, reducing manual control and lowering labor costs.

[0017] 2. A trigger mechanism is adopted, which moves the connecting plate upward through the floating scale plate. The ejector pin touches the limit switch to control the alarm to open. At the initial time of distillation, the gas pushes the floating scale plate upward to automatically raise the alarm, avoiding the lag in observing the completion time of the first distillation and improving the purification efficiency.

[0018] 3. A one-way membrane is used to prevent the liquid level inside the distillation tube from being too high, which would cause the liquid to flow back into the feed pipe, thus ensuring the cleanliness of the feed pipe and avoiding subsequent cleaning. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an epoxy resin separation and purification device provided in this embodiment;

[0021] Figure 2 This embodiment provides an epoxy resin separation and purification device. Figure 1 Top view diagram;

[0022] Figure 3 This embodiment provides an epoxy resin separation and purification device. Figure 2 Schematic diagram of section AA in the diagram;

[0023] Figure 4 This embodiment provides an epoxy resin separation and purification device. Figure 1 Enlarged diagram of point A.

[0024] In the diagram, 1. Distillation cylinder; 2. Gas delivery pipe; 3. Condenser; 4. Liquid storage tank; 5. Heating base; 6. Support; 7. Discharge pipe; 8. Collection cylinder; 9. Limit switch; 10. Feed pipe; 11. Solenoid valve; 12. One-way diaphragm; 13. Electric butterfly valve; 14. Laser beam switch; 15. Liquid level sensor module; 16. Floating indicator; 17. Moving rod; 18. Connecting plate; 19. Pin; 20. Alarm. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] 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.

[0027] Please see Figure 1-4 The present invention provides a technical solution comprising: a distillation cylinder 1, a gas guide pipe 2 connected to the upper end of the distillation cylinder 1, a condenser pipe 3 fixed to the end of the gas guide pipe 2 away from the distillation cylinder 1, a liquid storage tank 4 connected to the end of the condenser pipe 3 away from the gas guide pipe 2, a heating base 5 fixed to the bottom of the distillation cylinder 1, a support 6 fixed to the end of the heating base 5 away from the distillation cylinder 1, a discharge pipe 7 fixed to the end of the distillation cylinder 1 facing the support 6, a collection cylinder 8 placed on the support 6, the discharge pipe 7 located above the collection cylinder 8, a feed pipe 10 connected to the side of the distillation cylinder 1, an automatic control component also provided on the side of the distillation cylinder 1, and a trigger component slidably connected to the top of the distillation cylinder 1. A solenoid valve 11 is fixed outside the feed pipe 10, and a one-way membrane 12 is fixed inside the feed pipe 10. The one-way membrane 12 is located near the distillation cylinder 1. An electric butterfly valve 13 is fixed outside the discharge pipe 7. The solenoid valve 11 is used to control the opening and closing of the feed pipe 10. The feed pipe 10 is used for feeding epoxy resin or adding extractant when necessary. The electric butterfly valve 13 is used to control the opening and closing of the discharge pipe 7. After the electric butterfly valve 13 is opened, the solid resin remaining inside the distillation cylinder 1 flows out through the discharge pipe 7 into the collection cylinder 8.

[0028] The automatic control components include a laser beam switch 14 fixed to the side of the distillation cylinder 1, which comprises a transmitter and a receiver located on opposite sides of the distillation cylinder 1. It also includes a liquid level sensor module 15 fixed to the side of the storage tank 4. The laser beam switch 14 is electrically connected to an electric butterfly valve 13, and the liquid level sensor module 15 is electrically connected to a solenoid valve 11.

[0029] Subsequently, after the solid phase fills the space between the laser beam switches 14, the laser beam in the laser beam switches 14 is blocked, triggering an electrical signal to control the electric butterfly valve 13 to open, allowing the solid phase to flow out and be collected. Simultaneously, when the liquid level sensor module 15 detects that the liquid level has reached its position, it triggers an electrical signal to control the solenoid valve 11 to close. Both are controlled based on existing PLC control principles. Thus, the combined use of the laser beam switches 14 and the liquid level sensor module 15 can control the entire distillation process automatically, reducing manual control and lowering labor costs. Additionally, a triggering element is provided, including a floating indicator plate 16 sliding inside the distillation cylinder 1. A moving rod 17 is fixed to the top of the floating indicator plate 16. The moving rods 17 are symmetrically arranged, with the ends of the two moving rods 17 extending outwards from the floating indicator plate 16 along the top of the distillation cylinder 1. A connecting plate 18 is fixed to the extended ends, and a pin 19 is fixed to the connecting plate 18. A support rod is also fixed to the bracket 6, and an alarm 20 is fixedly installed on the support rod.

[0030] A limit switch 9 is screwed onto the support rod facing the connecting plate 18. The limit switch 9 is electrically connected to the alarm 20. After the ejector pin 19 moves upward, it contacts the limit switch 9. After gas is generated inside the distillation cylinder 1, it pushes the floating indicator plate 16 upward, causing the moving rod 17 and the connecting plate 18 to move upward. Then, the ejector pin 19 can contact the limit switch 9, thereby activating the alarm 20 to provide a warning. The working principle of this utility model is as follows: This utility model purifies the material through distillation. The raw material is added through the feed pipe 10. After addition, the laser beam switch 14 and the liquid level sensor module 15 are used to control the entire distillation process automatically. At the initial time of distillation, the gas pushes the floating indicator plate 16 upward, automatically raising the alarm and avoiding any lag in observing the completion time of the initial distillation, thus improving the purification efficiency.

[0031] The floating label plate 16 is made of lightweight high-temperature nylon material, which is lightweight and heat resistant. It has multiple through holes to avoid obstructing gas flow.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An apparatus for separating and purifying epoxy resin, comprising a distillation cylinder (1), a gas guide pipe (2) connected to the upper end of the distillation cylinder (1), a condenser pipe (3) fixed to the end of the gas guide pipe (2) away from the distillation cylinder (1), and a liquid storage barrel (4) connected to the end of the condenser pipe (3) away from the gas guide pipe (2), characterized in that, The bottom of the distillation cylinder (1) is fixed with a heating base (5), the heating base (5) is fixed with a support (6) away from the end of the distillation cylinder (1), the end of the distillation cylinder (1) is fixed with a discharge pipe (7), the support (6) is placed with a collection cylinder (8), the discharge pipe (7) is above the collection cylinder (8), the side of the distillation cylinder (1) is connected with a feeding pipe (10), the side of the distillation cylinder (1) is also provided with an automatic control part, and the top of the distillation cylinder (1) is slidably connected with a trigger part.

2. The apparatus for separating and purifying epoxy resin according to claim 1, characterized in that: The outside of the feeding pipe (10) is fixed with a solenoid valve (11), the inside of the feeding pipe (10) is fixed with a one-way membrane (12), the one-way membrane (12) is arranged close to the side of the distillation cylinder (1), and the outside of the discharge pipe (7) is fixed with an electric butterfly valve (13).

3. The apparatus for separating and purifying epoxy resin according to claim 2, characterized in that: The automatic control part includes a laser shot switch (14) fixed on the side of the distillation cylinder (1), the laser shot switch (14) comprises a transmitting end and a receiving end, the transmitting end and the receiving end are respectively located on both sides of the distillation cylinder (1), and the automatic control part also comprises a liquid level sensor module (15) fixed on the side of the liquid storage barrel (4).

4. The apparatus for separating and purifying epoxy resin according to claim 3, characterized in that: The laser shot switch (14) is electrically connected with the electric butterfly valve (13), and the liquid level sensor module (15) is electrically connected with the solenoid valve (11).

5. The apparatus for separating and purifying epoxy resin according to claim 1, characterized in that: The trigger part includes a floating mark plate (16) sliding in the distillation cylinder (1), the top of the floating mark plate (16) is fixed with a moving rod (17), the moving rod (17) is symmetrically arranged, the two moving rods (17) are fixed with a connecting plate (18) away from the end of the floating mark plate (16) and extending along the top of the distillation cylinder (1), the extending end is fixed with a connecting plate (18), the connecting plate (18) is fixed with a thimble (19), and the support rod is fixed on the support (6), and the alarm (20) is fixed on the support rod.

6. The apparatus for separating and purifying an epoxy resin according to claim 5, wherein: The support rod is screw-mounted with a travel switch (9) on the side of the connecting plate (18), the travel switch (9) is electrically connected with the alarm (20), and the thimble (19) is in contact with the travel switch (9) after moving up.

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