Heating device for purifying diethyltoluenediamine

Abstract

The utility model discloses a heating device for purification of diethyltoluenediamine, and relates to the field of purification of diethyltoluenediamine. The heating device for purifying diethyltoluenediamine comprises a horizontal purification tank and a cyclic heating stirring piece, the cyclic heating stirring piece comprises electric heating stirring blades and a connecting pipe, and steam discharging pipes are installed at the tops of the two ends of the horizontal purification tank. According to the heating device for purification of diethyltoluenediamine, by arranging a cyclic heating stirring piece, a driving motor is utilized to drive a connecting pipe to rotate, and the connecting pipe drives a hollow rotating shaft to rotate through a bevel gear, so that an electric heating stirring blade stirs a solution in the tank body in the electric heating process, and the evaporation speed is increased; meanwhile, evaporated steam enters the water removal tank through the steam discharge pipe to adsorb water, then returns to the connecting pipe through the air return pipe, and then is aerated through the exhaust hole, so that heat recovery circulation is realized, and meanwhile, the evaporation efficiency is further improved through aeration.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of diethyltoluene diamine purification, specifically to a heating device for diethyltoluene diamine purification. BACKGROUND

[0002] In the diethyltoluene diamine purification process, the evaporation purification or extraction purification method is usually used to obtain, according to the evaporation point of diethyltoluene diamine and the evaporation point of water and other by-products, by heating, the water and other by-products are evaporated outward, so as to achieve the purpose of purification.

[0003] The existing technical solution is usually operated by using an evaporator, the diethyltoluene diamine solution is poured into a sealed tank, the temperature is controlled by using an electric heating method, the temperature is raised, and then the water and other by-products are evaporated and discharged from the top, however, in actual operation, since it is natural evaporation, part of the water vapor may adhere to the inner wall of the tank and then fall back into the tank, resulting in low overall evaporation efficiency, and in the process of evaporating and discharging the water and other by-products, a large amount of heat energy is taken away, resulting in large energy consumption in the whole evaporation purification process, therefore, the heating device for diethyltoluene diamine purification is provided. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a heating device for diethyltoluene diamine purification, which solves the problems of low overall evaporation efficiency and large energy consumption in the whole evaporation purification process of the existing technical solution.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a heating device for diethyltoluene diamine purification, comprising a horizontal purification tank, a circulating heating stirring piece is arranged in the horizontal purification tank, the circulating heating stirring piece comprises;

[0006] An electric heating stirring blade is horizontally arranged in the horizontal purification tank, and the inner wall of the electric heating stirring blade is heated by an electric heating wire;

[0007] A connecting pipe is vertically arranged in the horizontal purification tank, and the top end of the connecting pipe extends to the outside of the horizontal purification tank, the connecting pipe is in transmission connection with the electric heating stirring blade, and the connecting pipe is in communication with the inside of the electric heating stirring blade;

[0008] Steam discharge pipes are installed at the top of both ends of the horizontal purification tank, and the connecting pipe is used to recycle the hot gas flow discharged from the end of the steam discharge pipe.

[0009] Preferably, the horizontal purification tank comprises;

[0010] A tank body;

[0011] The feed inlet is fixedly located at the top of the tank.

[0012] The discharge port is fixedly located at the bottom of the tank.

[0013] Preferably, a water removal tank is fixedly installed on one side of the outer wall of the tank, and the end of the steam exhaust pipe extends to the inner bottom of the water removal tank.

[0014] Preferably, the interior of the tank is rotatably connected to a hollow rotating shaft, the electrically heated stirring blades are fixedly mounted on the outer wall of the hollow rotating shaft, and an exhaust hole is provided on the outer surface of the hollow rotating shaft, the exhaust hole being connected to the interior of the hollow rotating shaft.

[0015] Preferably, the two ends of the tank are equipped with electric rotary connectors, which are electrically connected to the electrically heated stirring blades.

[0016] Preferably, a support pipe is fixedly installed in the middle of the tank, and the connecting pipe is rotatably installed in the support pipe. Helical gears are fixedly installed at the ends of both the connecting pipe and the hollow rotating shaft, and the two sets of helical gears mesh with each other.

[0017] Preferably, a drive motor is fixedly installed on the top of the tank, and a transmission belt is installed between the output end of the drive motor and the top end of the connecting pipe.

[0018] Preferably, a return air pipe is rotatably connected to the top of the connecting pipe, the other end of the return air pipe extends to the inner top of the water tank, and a one-way air valve is fixedly installed at the end of the return air pipe.

[0019] This utility model discloses a heating device for the purification of diethyltoluene diamine, which has the following beneficial effects: by setting up a circulating heating and stirring component, a drive motor drives the connecting pipe to rotate, and the connecting pipe drives the hollow rotating shaft to rotate through a helical gear, so that the electric heating stirring blades simultaneously stir the solution inside the tank during the electric heating process, thereby increasing the evaporation rate. At the same time, the evaporated steam enters the dewatering tank through the steam exhaust pipe to absorb the moisture, and then returns to the connecting pipe through the return gas pipe. Then, it is aerated through the exhaust hole, thereby realizing heat recovery and circulation, and further improving the evaporation efficiency through aeration. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the overall outer surface structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the internal structure of the tank body of this utility model;

[0023] Figure 3 This is a schematic diagram of the outer surface structure of the hollow rotating shaft of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the water tank of this utility model.

[0025] In the diagram: 1. Horizontal purification tank; 11. Tank body; 12. Feed inlet; 13. Steam exhaust pipe; 14. Support pipe; 15. Discharge port; 2. Circulating heating stirring component; 21. Hollow rotating shaft; 22. Connecting pipe; 23. Drive motor; 24. Electric heating stirring blade; 25. Electric rotary connector; 26. Exhaust port; 27. Drive belt; 28. Helical gear; 29. ​​Return gas pipe; 210. One-way air valve; 3. Water removal tank. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] This application provides a heating device for the purification of diethyltoluene diamine, which solves the problems of low overall evaporation efficiency and high energy consumption in the existing technical solutions that usually use evaporators.

[0028] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0029] This utility model discloses a heating device for the purification of diethyltoluenediamine.

[0030] Example 1

[0031] According to the appendix Figures 1-4 As shown, it includes a horizontal purification tank 1, and the interior of the horizontal purification tank 1 is provided with a circulating heating and stirring component 2, which includes:

[0032] The electrically heated stirring blade 24 is horizontally rotated inside the horizontal purification tank 1, and is heated by an electric heating wire in the inner wall jacket.

[0033] The connecting pipe 22 is vertically rotatably installed in the horizontal purification tank 1, and its top end extends through to the outside of the horizontal purification tank 1. The connecting pipe 22 is connected to the electric heating stirring blade 24 in a transmission manner, and at the same time, the connecting pipe 22 is connected to the inside of the electric heating stirring blade 24.

[0034] The horizontal purification tank 1 is equipped with steam exhaust pipes 13 at both ends and the top of the tank. The connecting pipe 22 is used to recover the hot gas flow discharged from the end of the steam exhaust pipes 13.

[0035] Horizontal purification tank 1 includes;

[0036] Tank 11;

[0037] The feed inlet 12 is fixedly installed on the top of the tank body 11;

[0038] The discharge port 15 is fixedly installed at the bottom of the tank body 11.

[0039] A hollow rotating shaft 21 is rotatably connected inside the tank body 11. An electrically heated stirring blade 24 is fixedly installed on the outer wall of the hollow rotating shaft 21, and an exhaust hole 26 is provided on the outer surface of the hollow rotating shaft 21. The exhaust hole 26 is connected to the inside of the hollow rotating shaft 21.

[0040] Electrically rotating connectors 25 are installed at both ends of the tank body 11, and the electrically rotating connectors 25 are electrically connected to the electrically heated stirring blades 24.

[0041] A support pipe 14 is fixedly installed in the middle of the tank body 11, and a connecting pipe 22 is rotatably installed in the support pipe 14. Helical gears 28 are fixedly installed at the ends of the connecting pipe 22 and the hollow rotating shaft 21, and the two sets of helical gears 28 mesh with each other.

[0042] A drive motor 23 is fixedly installed on the top of the tank 11, and a transmission belt 27 is installed between the output end of the drive motor 23 and the top end of the connecting pipe 22.

[0043] A return air pipe 29 is rotatably connected to the top of the connecting pipe 22.

[0044] By setting up a circulating heating stirring component 2, the drive motor 23 drives the connecting pipe 22 to rotate. The connecting pipe 22 drives the hollow rotating shaft 21 to rotate through the helical gear 28, so that the electric heating stirring blade 24 stirs the solution inside the tank 11 during the electric heating process, thereby increasing the evaporation rate. At the same time, the evaporated steam enters the dewatering tank 3 through the steam exhaust pipe 13 to absorb the water, and then returns to the connecting pipe 22 through the return air pipe 29. Then, it is aerated through the exhaust port 26, thereby realizing heat recovery cycle and further improving the evaporation efficiency through aeration.

[0045] Example 2

[0046] See attached document Figures 1-4 More specifically, based on Example 1, the following is also relevant:

[0047] A water removal tank 3 is fixedly installed on one side of the outer wall of the tank body 11. The end of the steam exhaust pipe 13 extends to the bottom of the water removal tank 3. The other end of the return air pipe 29 extends to the top of the water removal tank 3. A one-way air valve 210 is fixedly installed at the end of the return air pipe 29.

[0048] During use, the bottom of the water tank 3 is filled with absorbent material, including but not limited to absorbent sponge, dry compressed powder, etc. When the hot air containing moisture in the steam exhaust pipe 13 enters the bottom of the water tank 3, the moisture is absorbed by the absorbent material. Then the hot air flows upward and returns to the tank 11 through the one-way valve 210 to achieve heat recovery. At the same time, the one-way valve 210 enables the airflow to circulate naturally, thereby providing airflow guidance for steam exhaust and facilitating the effective collection of water vapor.

[0049] 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 apparatus for purifying diethyltoluene diamine, comprising a horizontal purification tank (1), characterized in that, The horizontal purification tank (1) is equipped with a circulating heating and stirring component (2), which includes: The electric heating stirring blade (24) is horizontally rotated inside the horizontal purification tank (1), and its inner wall is heated by electric heating wires. The connecting pipe (22) is vertically rotatably installed in the horizontal purification tank (1), and its top end extends through to the outside of the horizontal purification tank (1). The connecting pipe (22) is connected to the electric heating stirring blade (24) in a transmission manner, and the connecting pipe (22) is connected to the inside of the electric heating stirring blade (24). The horizontal purification tank (1) is equipped with steam exhaust pipes (13) at both ends and the connecting pipe (22) is used to recover the hot gas flow discharged from the end of the steam exhaust pipe (13).

2. The heating apparatus for purifying diethyltoluenediamine according to claim 1, characterized in that: The horizontal purification tank (1) includes: Tank body (11); The feed inlet (12) is fixedly installed on the top of the tank body (11); The discharge port (15) is fixedly installed at the bottom of the tank body (11).

3. The heating apparatus for purifying diethyltoluenediamine according to claim 2, characterized in that: A water removal tank (3) is fixedly installed on one side of the outer wall of the tank (11), and the end of the steam exhaust pipe (13) extends to the inner bottom of the water removal tank (3).

4. The heating apparatus for purifying diethyltoluenediamine according to claim 2, characterized in that: The tank body (11) is rotatably connected to a hollow rotating shaft (21). The electric heating stirring blade (24) is fixedly installed on the outer wall of the hollow rotating shaft (21). An exhaust hole (26) is opened on the outer surface of the hollow rotating shaft (21). The exhaust hole (26) is connected to the inside of the hollow rotating shaft (21).

5. The heating apparatus for purifying diethyltoluenediamine according to claim 4, characterized in that: The tank (11) is equipped with an electric rotary connector (25) at both ends, and the electric rotary connector (25) is electrically connected to the electric heating stirring blade (24).

6. The heating apparatus for purifying diethyltoluenediamine according to claim 4, characterized in that: A support pipe (14) is fixedly installed in the middle of the tank (11), and a connecting pipe (22) is rotatably installed in the support pipe (14). Helical gears (28) are fixedly installed at the ends of the connecting pipe (22) and the hollow rotating shaft (21), and the two sets of helical gears (28) mesh with each other.

7. The heating apparatus for purifying diethyltoluenediamine according to claim 6, characterized in that: A drive motor (23) is fixedly installed on the top of the tank (11), and a transmission belt (27) is installed between the output end of the drive motor (23) and the top end of the connecting pipe (22).

8. The heating apparatus for purifying diethyltoluenediamine according to claim 7, characterized in that: The top of the connecting pipe (22) is rotatably connected to a return air pipe (29), the other end of which extends to the inner top of the water removal tank (3), and a one-way air valve (210) is fixedly installed at the end of the return air pipe (29).

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