Dehydration device for producing amine antistatic agent

Abstract

The utility model discloses a dehydration device for producing an amine antistatic agent, and relates to the field of organic amine synthesis dehydration devices. The dehydration device for producing the amine antistatic agent comprises a heating reaction kettle, a feeding pipe is installed at the top end of the heating reaction kettle, a discharging pipe is installed at the bottom end of the heating reaction kettle, and a vacuum drainage mechanism extending to the outer side of the heating reaction kettle is installed at the top end of the heating reaction kettle. The vacuum drainage mechanism comprises a vacuum assembly and a drainage assembly. According to the utility model, the vacuum assembly is arranged, so that a small amount of water in the fatty amine raw material can be pumped out and condensed into water drops without long-time operation of the sucking pump, and therefore, the small amount of water is promoted to continuously enter the collecting box.

Description

Technical Field

[0001] This utility model relates to the field of organic amine synthesis and dehydration equipment, specifically a dehydration equipment for producing amine antistatic agents. Background Technology

[0002] Alkoxypropyl dihydroxyethylamine is an important amine antistatic agent used in polyolefin production, playing a crucial role in stabilizing processes, ensuring safe production, and eliminating static electricity. For example, in polypropylene industrial production, it prevents polymers from adhering to reactor walls and the inner walls of system equipment, preventing blockages in piping systems, which is particularly important for loop polymerization reactors. It is widely used in petrochemical, agrochemical, pharmaceutical, and surfactant industries, and has significant application development and research value.

[0003] Existing production equipment for alkoxypropyl dihydroxyethylamine antistatic agents is small-scale and inconvenient for dehydration. It primarily utilizes the difference in boiling points between aliphatic amines and water, heating the liquid aliphatic amine material followed by vacuuming to separate water as steam, thus achieving dehydration. The generated water vapor needs to be continuously extracted by a vacuum pump, which operates for extended periods, consuming significant electrical energy and making the pump prone to damage during prolonged operation, further contributing to poor dehydration results. Utility Model Content

[0004] The purpose of this invention is to provide a dehydration device for producing amine antistatic agents in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dehydration device for producing amine antistatic agents, comprising a heating reactor, a feed pipe installed at the top of the heating reactor, a discharge pipe installed at the bottom of the heating reactor, and a vacuum drainage mechanism extending to the outside of the heating reactor installed at the top of the heating reactor, the vacuum drainage mechanism comprising a vacuum component and a drainage component.

[0006] As a further embodiment of this utility model: the vacuum assembly includes a bent pipe installed on one side of the top of the heating reactor, the output end of the bent pipe is connected to a three-way pipe, the bottom output port of the three-way pipe is connected to a connecting pipe, the output end of the connecting pipe is equipped with an air pump, and the output end of the air pump is equipped with an exhaust pipe.

[0007] As a further embodiment of this utility model: the drainage assembly includes a steam pipe connected to the side outlet of the three-way pipe, a collection box installed at the bottom end of the steam pipe, a drain pipe installed at the bottom end of the collection box, a drain valve installed on the drain pipe, a spiral condenser installed in the inner cavity of the drain valve, an output pipe fixedly connected to the output end of the condenser, an input pipe fixedly connected to the input end of the condenser, and both the input pipe and the output pipe extend to the outside of the collection box.

[0008] As a further improvement of this utility model: a feed valve is installed on the feed pipe, and a discharge valve is installed on the vertical section of the discharge pipe.

[0009] As a further improvement of this utility model, an air extraction valve is installed on the outer wall of the connecting pipe between the air pump and the three-way pipe.

[0010] As a further improvement of this utility model, a sealing element is provided at the connection position between the collection box and the input pipe and the output pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By incorporating a vacuum component, the vacuum pump can extract water vapor without requiring prolonged continuous operation, condensing it into water droplets and thus promoting a continuous flow of water vapor into the collection box. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the installation structure of the drainage component of this utility model;

[0015] Figure 3 This is a schematic diagram of the installation of the condenser tube of this utility model.

[0016] In the diagram: 1. Heating reactor; 2. Feed pipe; 3. Feed valve; 4. Discharge pipe; 5. Discharge valve; 7. Bend; 8. T-joint; 9. Connecting pipe; 10. Vacuum valve; 11. Air pump; 12. Exhaust pipe; 13. Steam pipe; 14. Collection box; 15. Drain pipe; 16. Drain valve; 17. Condenser; 18. Input pipe; 19. Output pipe. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-3 In this embodiment of the present invention, a dehydration device for producing amine antistatic agents includes a heating reactor 1, a feed pipe 2 installed at the top of the heating reactor 1, a discharge pipe 4 installed at the bottom of the heating reactor 1, a vacuum drainage mechanism extending to the outside of the heating reactor 1 installed at the top of the heating reactor 1, the vacuum drainage mechanism including a vacuum component and a drainage component, a feed valve 3 installed on the feed pipe 2, and a discharge valve 5 installed on the vertical part of the discharge pipe 4.

[0019] In this embodiment: First, fatty amines are added to the heating reactor 1 through the feed pipe 2. Then, the feed valve 3 is closed, and the vacuum component of the vacuum drainage mechanism is started. The vacuum component operates, extracting air from the heating reactor 1 and the drainage component, creating a negative pressure state inside the device. After the heating reactor 1 is running, the external heat exchanger pump in the jacket of the heating reactor 1 circulates and heats the raw material. Since the air pressure inside the heating reactor 1 is low at this time, the boiling point of the water contained in the raw material is reduced, and the decomposition of the raw material caused by excessively high temperature can be avoided. During the heating process, as water vapor overflows, the pressure inside the heating reactor 1 increases. Therefore, the water vapor moves towards the low-pressure drainage component, which can realize the conversion of water into water vapor and discharge it into the drainage component. The water vapor entering the drainage component condenses upon cooling, maintaining the negative pressure of the drainage component, and enabling water vapor to continuously enter the drainage component.

[0020] Please refer to this carefully. Figure 1 , Figure 2 The vacuum assembly includes a bent pipe 7 installed on one side of the top of the heating reactor 1. The output end of the bent pipe 7 is connected to a three-way pipe 8. The bottom output port of the three-way pipe 8 is connected to a connecting pipe 9. An air pump 11 is installed at the output end of the connecting pipe 9. An exhaust pipe 12 is installed at the output end of the air pump 11. An air extraction valve 10 is installed on the outer wall of the connecting pipe 9 between the air pump 11 and the three-way pipe 8.

[0021] In this embodiment: by opening the air extraction valve 10 and starting the air pump 11, the suction generated by the air pump 11 will draw out the air from the drainage assembly and the inside of the heating reactor 1. The extracted air enters the three-way pipe 8 through the bend pipe 7 and the steam pipe 13, and then is discharged from the exhaust pipe 12 through the air pump 11. After the air is completely discharged, the air extraction valve 10 can be closed. At this time, the air pressure inside the device is lower than the atmospheric pressure outside the device, thereby achieving the purpose of lowering the boiling point of water.

[0022] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The drainage assembly includes a steam pipe 13 connected to the side outlet of the three-way pipe 8. A collection box 14 is installed at the bottom end of the steam pipe 13. A drain pipe 15 is installed at the bottom end of the collection box 14. A drain valve 16 is installed on the drain pipe 15. A spiral condenser pipe 17 is installed inside the drain valve 16. An output pipe 19 is fixedly connected to the output end of the condenser pipe 17. An input pipe 18 is fixedly connected to the input end of the condenser pipe 17. Both the input pipe 18 and the output pipe 19 extend to the outside of the collection box 14. A sealing element is provided at the connection position between the collection box 14 and the input pipe 18 and the output pipe 19.

[0023] In this embodiment: As the device operates, the raw materials in the heating reactor 1 are heated. At this time, the water whose boiling point is lowered under negative pressure begins to evaporate and dissipate, which causes the internal pressure of the heating reactor 1 to increase. Since the gas pressure always moves from a high position to a low position, the water vapor enters the water vapor pipe 13 through the bend pipe 7 and the three-way pipe 8, and finally enters the collection box 14 along the water vapor pipe 13.

[0024] The water pump draws cool water at a lower temperature from the water tank and inputs it into the condenser pipe 17 through the inlet pipe 18. Then it flows back to the water tank through the outlet pipe 19. At this time, the water vapor entering the collection box 14 is cooled and condensed into water droplets, thereby maintaining the low pressure state of the collection box 14 and enabling the escaping water vapor to continuously enter the collection box 14.

[0025] After the device stops operating, the water can be discharged by opening the drain valve 16.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dehydration apparatus for producing amine antistatic agents, comprising a heated reaction vessel (1), characterized in that, The heating reactor (1) is equipped with a feed pipe (2) at the top and a discharge pipe (4) at the bottom. The heating reactor (1) is equipped with a vacuum drainage mechanism extending to the outside of the heating reactor (1) at the top. The vacuum drainage mechanism includes a vacuum component and a drainage component.

2. The dehydration apparatus for producing amine antistatic agents according to claim 1, characterized in that, The vacuum assembly includes a bent pipe (7) installed on one side of the top of the heating reactor (1). The output end of the bent pipe (7) is connected to a three-way pipe (8). The bottom outlet of the three-way pipe (8) is connected to a connecting pipe (9). The output end of the connecting pipe (9) is equipped with an air pump (11). The output end of the air pump (11) is equipped with an exhaust pipe (12).

3. The dehydration apparatus for producing amine antistatic agents according to claim 2, characterized in that, The drainage assembly includes a steam pipe (13) connected to the side outlet of the three-way pipe (8). A collection box (14) is installed at the bottom end of the steam pipe (13). A drain pipe (15) is installed at the bottom end of the collection box (14). A drain valve (16) is installed on the drain pipe (15). A spiral condenser (17) is installed in the inner cavity of the drain valve (16). An output pipe (19) is fixedly connected to the output end of the condenser (17). An input pipe (18) is fixedly connected to the input end of the condenser (17). Both the input pipe (18) and the output pipe (19) extend to the outside of the collection box (14).

4. The dehydration apparatus for producing amine antistatic agents according to claim 1, characterized in that, A feed valve (3) is installed on the feed pipe (2), and a discharge valve (5) is installed on the vertical part of the discharge pipe (4).

5. A dehydration apparatus for producing amine antistatic agents according to claim 3, characterized in that, An air extraction valve (10) is installed on the outer wall of the connecting pipe (9) between the air pump (11) and the three-way pipe (8).

6. The dehydration apparatus for producing amine antistatic agents according to claim 3, characterized in that, The collection box (14) is provided with a sealing element at the connection position with the input pipe (18) and the output pipe (19).

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