2, 6-dichloro-p-nitroaniline separation device

Abstract

The utility model discloses a 2, 6-dichloro-p-nitroaniline separating device which comprises a device main body, a stirring assembly and an inflating assembly, and the stirring assembly is mounted in the middle of the top wall of the device main body; the stirring assembly comprises a driving motor, the output end of the driving motor is in transmission connection with a rotating shaft, stirring blades are installed on the rotating shaft, and an inflation assembly is installed in the inner cavity of the device body outside the stirring blades. The inflation assembly comprises an annular air pipe, the outer wall of the annular air pipe is communicated with an air outlet, the annular air pipe is communicated with an air inlet pipe through a connecting pipe, and a first valve is installed on the air inlet pipe. The problems that in the prior art, although the reaction kettle can improve the uniformity of chlorination synthesis during use, the branch pipes are only arranged at the lower section of the main pipe and can only stir materials at the bottom of the kettle body, and the mixing speed can be increased only by enabling the kettle body to move up and down in a reciprocating mode through springs and air cylinders outside the kettle body, so that time is wasted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of 2,6-dichloro-p-nitroaniline production, and specifically, to a separation device for 2,6-dichloro-p-nitroaniline. Background Art

[0002] 2,6-Dichloro-p-nitroaniline is an important dye intermediate. The preparation of 2,6-dichloro-p-nitroaniline mainly uses p-nitroaniline as the raw material. In a 30% hydrochloric acid medium at 50 °C, chlorine gas is introduced for chlorination reaction. After the chlorination reaction reaches the end point, the chlorinated material is pressure-filtered, washed to neutrality, and dried to obtain the 2,6-dichloro-p-nitroaniline product.

[0003] It is found that in the 2,6-dichloro-p-nitroaniline reaction kettle disclosed in the publication number: CN216654579U, this technology discloses that "it includes a kettle body and a main pipe. The main pipe is rotatably connected through the top surface of the kettle body and extends into the kettle body. And the main pipe surface is connected with branch pipes through a four-way connection. The branch pipe surface is evenly provided with air holes. The main pipe surface is fixedly sleeved with a pulley above the kettle body, and a driving motor is fixedly installed on one side of the main pipe. And the output end of the driving motor is connected with the pulley through a connecting belt. The top surface of the kettle body is fixedly installed with an air inlet pipe through a fixing frame. One end of the air inlet pipe is connected with a chlorine gas conveying device through a hose, and the other end of the air inlet pipe is rotatably connected with the main pipe through a sealing bearing. When carrying out the chlorination synthesis reaction, chlorine gas enters the main pipe along the air inlet pipe, then enters the branch pipes along the main pipe, and is discharged into the kettle body from the air holes on the branch pipe surface. At the same time, the branch pipes are in a rotating state, and the chlorine gas flowing out from the air holes flows out evenly into the material with the rotation of the branch pipes, thereby improving the uniformity of the chlorine gas outflow, improving the uniformity of the chlorination synthesis, and improving the production efficiency".

[0004] However, the above 2,6-dichloro-p-nitroaniline reaction kettle has the following disadvantages:

[0005] 1. Although the reaction kettle in this patent can improve the uniformity of chlorination synthesis during use, the branch pipes are only arranged in the lower section of the main pipe, and can only stir the materials at the bottom of the kettle body. It is also necessary to rely on the springs and cylinders outside the kettle body to move the kettle body up and down reciprocally to accelerate the mixing speed, so it is time-consuming.

[0006] To solve the above problems, a separation device for 2,6-dichloro-p-nitroaniline is proposed in this application. Content of the Utility Model

[0007] In view of the problems in the related art, the utility model provides a separation device for 2,6-dichloro-p-nitroaniline, which can accelerate the material mixing speed, save time, and improve the mixing efficiency.

[0008] To this end, the specific technical solution adopted by the present utility model is as follows:

[0009] A 2,6-dichloro-p-nitroaniline separation device, comprising a device main body, a stirring assembly and an air inflation assembly. The upper end of the device main body is communicated with an exhaust gas outlet, and a stirring assembly is installed in the middle of the top wall of the device main body;

[0010] The stirring assembly includes a driving motor, the output end of the driving motor is in transmission connection with a rotating shaft, a stirring blade is installed on the rotating shaft, and an air inflation assembly is installed in the inner cavity of the device main body outside the stirring blade;

[0011] The air inflation assembly includes an annular air pipe, the annular air pipe is installed on the inner wall of the device main body through a connecting rod, an air outlet is communicated with the outer wall of the annular air pipe, the annular air pipe is communicated with an air inlet pipe through a connecting pipe, a first valve is installed on the air inlet pipe, and a cleaning pipe device is installed in the annular air pipe.

[0012] As a further solution of the present utility model, the cleaning pipe device includes an annular water pipe, the annular water pipe is installed in the inner cavity of the annular air pipe, and one end of a water spray head is communicated with the outer wall of the annular water pipe, and the other end of the water spray head passes through the outer wall of the annular air pipe.

[0013] As a further solution of the present utility model, the water outlet end of the water spray head is inclined towards the inside of the device main body, and the annular water pipe is communicated with a connecting water pipe in the inner cavity of the connecting pipe.

[0014] As a further solution of the present utility model, the connecting water pipe is communicated with an inlet water pipe passing through the outer wall of the connecting pipe, and a second valve is installed on the inlet water pipe.

[0015] As a further solution of the present utility model, the middle of the bottom end of the device main body is communicated with a discharge port, and a third valve is installed on the discharge port.

[0016] As a further solution of the present utility model, support columns are installed at the bottom end of the device main body, and a feed inlet is also communicated with the top wall of the device main body.

[0017] As a further solution of the present utility model, the device main body adopts a segmented structure design, and the two device main bodies are hermetically connected by installation bolts.

[0018] The beneficial effects of the present utility model are:

[0019] The utility model works through the cooperation of the device main body, the stirring assembly and the gas charging assembly. When in use, materials enter the inner cavity of the device main body through the feeding port, and then the stirring assembly and the gas charging assembly work to mix the entering materials with the entering chlorine gas. During this process, the arranged spiral stirring blades can fully stir the entering materials up and down. At the same time, the upper and lower annular air pipes and the air outlet arranged in the inner cavity of the device main body flush the entering chlorine gas into the materials, and fully mix with the rotation of the stirring blades, so that the device can accelerate the material mixing speed, save time and improve the mixing efficiency. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Fig. is the overall structural schematic diagram of a 2,6-dichloro-p-nitroaniline separation device according to an embodiment of the present utility model;

[0022] Figure 2 Fig. is the schematic diagram of the cooperation of the stirring assembly and the gas charging assembly of a 2,6-dichloro-p-nitroaniline separation device according to an embodiment of the present utility model;

[0023] Figure 3 Fig. is the external appearance schematic diagram of the gas charging assembly of a 2,6-dichloro-p-nitroaniline separation device according to an embodiment of the present utility model;

[0024] Figure 4 Fig. is the partial cross-sectional structural schematic diagram of the gas charging assembly of a 2,6-dichloro-p-nitroaniline separation device according to an embodiment of the present utility model;

[0025] Figure 5 Fig. is the structural schematic diagram of the stirring assembly of a 2,6-dichloro-p-nitroaniline separation device according to an embodiment of the present utility model.

[0026] In the figure:

[0027] 1. Device main body; 2. Stirring assembly; 3. Gas charging assembly; 4. Waste gas outlet; 5. Driving motor; 6. Rotating shaft; 7. Stirring blade; 8. Annular air pipe; 9. Air outlet; 10. Connecting pipe; 11. Air inlet pipe; 12. First valve; 13. Cleaning pipe device; 131. Annular water pipe; 132. Spraying head; 133. Connecting water pipe; 134. Water inlet pipe; 135. Second valve; 14. Discharge port; 15. Third valve; 16. Feeding port. Detailed Embodiments

[0028] To further illustrate each embodiment, the present utility model provides accompanying drawings, which are a part of the disclosure of the present utility model. They are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to an embodiment of the present utility model, a 2,6-dichloro-p-nitroaniline separation device is provided.

[0030] Please refer to the attached Figures 1-5 , a 2,6-dichloro-p-nitroaniline separation device according to an embodiment of the present utility model includes a device main body 1, a stirring assembly 2, and an air inflation assembly 3. An exhaust gas outlet 4 is connected to the upper end of the device main body 1. A discharge port 14 is connected to the middle of the bottom end of the device main body 1. A third valve 15 is installed on the discharge port 14. Support columns are installed at the bottom end of the device main body 1. A feed port 16 is also connected to the top wall of the device main body 1. A stirring assembly 2 is installed in the middle of the top wall of the device main body 1; the stirring assembly 2 includes a driving motor 5, the output end of the driving motor 5 is in transmission connection with a rotating shaft 6, a stirring blade 7 is installed on the rotating shaft 6, and an air inflation assembly 3 is installed in the inner cavity of the device main body 1 outside the stirring blade 7; the air inflation assembly 3 includes an annular air pipe 8, the annular air pipe 8 is installed on the inner wall of the device main body 1 through a connecting rod, an air outlet 9 is connected to the outer wall of the annular air pipe 8, the annular air pipe 8 is connected to an air inlet pipe 11 through a connecting pipe 10, a first valve 12 is installed on the air inlet pipe 11, and a cleaning pipe device 13 is installed in the annular air pipe 8. By setting the device main body 1, the stirring assembly 2, and the air inflation assembly 3 to work in cooperation, during use, the material enters the inner cavity of the device main body 1 through the feed port 16, and then the stirring assembly 2 and the air inflation assembly 3 work to mix the entering material with the entering chlorine gas. During this process, the spiral stirring blade 7 provided can fully stir the entering material up and down. At the same time, the upper and lower annular air pipes 8 and the air outlet 9 provided in the inner cavity of the device main body 1 inject the entering chlorine gas into the material, and it is fully mixed as the stirring blade 7 rotates, so that this device can accelerate the material mixing speed, save time, and improve the mixing efficiency.

[0031] In one embodiment, please refer to the attached Figure 1 , Figure 2 , Figure 3 and Figure 4As a further solution of the utility model, the cleaning pipe device 13 includes an annular water pipe 131, which is installed in the inner cavity of the annular air pipe 8, and one end of a water spray head 132 is connected to the outer wall of the annular water pipe 131, and the other end of the water spray head 132 passes through the outer wall of the annular air pipe 8. The water outlet end of the water spray head 132 is inclined toward the inside of the device body 1, and the annular water pipe 131 is connected to a connecting water pipe 133 in the inner cavity of the connecting pipe 10, and the connecting water pipe 133 is connected to a water inlet pipe 134 passing through the outer wall of the connecting pipe 10, and a second valve 135 is installed on the water inlet pipe 134. When in use, the second valve 135 is opened, and the external cleaning water enters the connecting water pipe 133 through the water inlet pipe 134, then flows into the annular water pipe 131, and then sprays to the inner wall of the device body 1 through the water spray head 132 connected to the annular water pipe 131, so as to facilitate cleaning.

[0032] In one embodiment, please refer to the attached manual. Figure 1 and Figure 2 As a further solution of the present invention, the device body 1 adopts a segmented structure design, and the two device bodies 1 are sealed and connected by mounting bolts. The segmented structure can facilitate the maintenance of the components in the inner cavity of the device body 1.

[0033] Working process: when in use, the material enters the inner cavity of the device body 1 through the feed port 16, and then the driving motor 5 in the stirring assembly 2 starts working, and drives the stirring blade 7 to work through the rotating shaft 6 connected thereto. At the same time, the first valve 12 on the air inlet pipe 11 is opened, and the chlorine gas enters the connecting pipe 10 through the air inlet pipe 11, and then enters the annular air pipe 8, and then flows into the material from the air outlet 9. In this process, the spiral stirring blade 7 can fully stir the incoming material up and down, and at the same time, as the stirring blade 7 rotates, the material and the incoming chlorine are fully mixed, thereby accelerating the material mixing speed.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A 2,6-dichloro-p-nitroaniline separation device, comprising a device main body (1), a stirring assembly (2) and an air inflation assembly (3), characterized in that: The upper end of the device main body (1) is communicated with an exhaust gas outlet (4), and a stirring assembly (2) is installed in the middle of the top wall of the device main body (1); The stirring assembly (2) includes a driving motor (5), the output end of the driving motor (5) is drivingly connected with a rotating shaft (6), a stirring blade (7) is installed on the rotating shaft (6), and an air charging assembly (3) is installed in the inner cavity of the device main body (1) outside the stirring blade (7); The air charging assembly (3) includes an annular air pipe (8), the annular air pipe (8) is installed on the inner wall of the device main body (1) through a connecting rod, an air outlet (9) is communicated with the outer wall of the annular air pipe (8), the annular air pipe (8) is communicated with an air inlet pipe (11) through a connecting pipe (10), a first valve (12) is installed on the air inlet pipe (11), and a cleaning pipe device (13) is installed in the annular air pipe (8).

2. The 2,6-dichloro-p-nitroaniline separation device according to claim 1, characterized in that: The cleaning pipe device (13) includes an annular water pipe (131), the annular water pipe (131) is installed in the inner cavity of the annular air pipe (8), and one end of a water spray head (132) is communicated with the outer wall of the annular water pipe (131), and the other end of the water spray head (132) penetrates through the outer wall of the annular air pipe (8).

3. The 2,6-dichloro-p-nitroaniline separation device according to claim 2, wherein: The water outlet end of the water spray head (132) is inclined towards the inside of the device main body (1), and the annular water pipe (131) is communicated with a connecting water pipe (133) in the inner cavity of the connecting pipe (10).

4. The 2,6-dichloro-p-nitroaniline separation device according to claim 3, wherein: The connecting water pipe (133) is communicated with a water inlet pipe (134) passing through the outer wall of the connecting pipe (10), and a second valve (135) is installed on the water inlet pipe (134).

5. The 2,6-dichloro-p-nitroaniline separation device according to claim 1, characterized in that: The middle of the bottom end of the device main body (1) is communicated with a discharge port (14), and a third valve (15) is installed on the discharge port (14).

6. The 2,6-dichloro-p-nitroaniline separation device according to claim 1, wherein: Support columns are installed at the bottom end of the device main body (1), and a feed port (16) is also communicated with the top wall of the device main body (1).

7. The 2,6-dichloro-p-nitroaniline separation device according to claim 1, characterized in that: The device main body (1) adopts a segmented structure design, and the two device main bodies (1) are hermetically connected through installation bolts.

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