O-nitroaniline liquid material recovery device

Abstract

The utility model discloses an ortho-nitroaniline liquid material recovery device, relates to the technical field of ortho-nitroaniline recovery treatment, and solves the problems that in the filtering process of an existing recovery device, due to the fact that ortho-nitroaniline liquid materials directly impact a filter screen, the filter screen is damaged due to deformation after being used for a long time, and the recovery effect is poor. The filtering operation of the o-nitroaniline liquid material is influenced. Comprising a treatment tank and a feeding hole formed in the top surface of the treatment tank; the liquid guide channel is arranged at the lower end of the interior of the treatment tank, the liquid guide channel is divided into a channel I and a channel II which are spliced together, and a filter screen is arranged in a port of the channel II; a pair of miniature telescopic cylinders; according to the utility model, the o-nitroaniline liquid material impacts on the flow divider and drives the flow divider to rotate, so that the impact force of the o-nitroaniline liquid can be reduced, the o-nitroaniline liquid material is prevented from directly impacting the filter screen, the filter screen is prevented from being deformed and damaged, and the service life of the filter screen is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of o-nitroaniline recovery and treatment, and particularly relates to a recovery device for o-nitroaniline liquid materials. Background Technique

[0002] The process of preparing o-chloronitrobenzene by ammonolysis is carried out continuously in a high-pressure pipeline reactor at a pressure of 14.7 MPa and a temperature of 230 °C. When o-chloronitrobenzene and ammonia enter the reaction pipeline and stay for 20 minutes, the pressure is reduced to 98 kPa at one time by a pneumatic diaphragm regulating valve, and then it enters the expansion tank for ammonia evaporation and removal. The evaporated ammonia enters the ammonia absorption exhaust pipe through a jet pump for circulating absorption. After adding a part of liquid ammonia, it continues to supply ammonia for ammonolysis. The ammonia-removed material is obtained as a product after post-treatment.

[0003] At present, the production of o-nitroaniline generally requires steps such as extraction and recovery, adsorption treatment, evaporation and recovery, and rectification treatment; in the process of evaporation and recovery, a filtering device is usually used to filter the liquid material. However, in the filtering process, due to the direct impact of the o-nitroaniline liquid material on the filter screen, after long-term use, the filter screen will be deformed and damaged, affecting the filtering operation of the o-nitroaniline liquid material.

[0004] Therefore, based on the above problems, we designed a recovery device for o-nitroaniline liquid materials. Content of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, the utility model provides a recovery device for o-nitroaniline liquid materials, which solves the technical problem that in the existing recovery device, due to the direct impact of the o-nitroaniline liquid material on the filter screen, after long-term use, the filter screen will be deformed and damaged, affecting the filtering operation of the o-nitroaniline liquid material.

[0006] To achieve the above object, according to an embodiment of the first aspect of the utility model, a recovery device for o-nitroaniline liquid materials is provided, including a treatment tank and a feeding port arranged on the top surface of the treatment tank;

[0007] It further includes:

[0008] A liquid guiding channel is arranged at the lower end inside the treatment tank. The liquid guiding channel is divided into a channel one and a channel two that are spliced together. A filter screen is arranged inside the port of the channel two;

[0009] A pair of micro telescopic cylinders are symmetrically arranged on both sides of the outer wall of the channel two respectively. The rod bodies of the pair of micro telescopic cylinders are respectively connected to both sides of the outer wall of the channel one;

[0010] The diverter is arranged inside the port of Channel 1. The diverter includes a rotating rod rotatably arranged inside the port of Channel 1 and several diverter plates circularly distributed and connected to the rotating rod.

[0011] A further improvement lies in that a pressing frame is arranged on the bottom surface of Channel 1, and the inner wall surfaces of the pressing frame, Channel 1, and the outer frame of the filter screen are flush.

[0012] A further improvement lies in that after Channel 1 and Channel 2 are integrated, the outer wall surface of the pressing frame contacts the inner wall of Channel 2.

[0013] A further improvement lies in that an installation block is connected to the rod end of each micro telescopic cylinder, and the installation block is connected to the side of Channel 1 through a fixing bolt.

[0014] A further improvement lies in that an inner cavity is arranged inside the treatment tank, the bottom of the inner cavity is funnel-shaped, and a corrugated hose is connected between the bottom of the inner cavity and the top port of Channel 1.

[0015] A further improvement lies in that an electric valve is arranged at the bottom of the treatment tank, and a discharge pipe is connected to the electric valve.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] (1) In the present utility model, a diverter is arranged in Channel 1. The diverter is composed of a rotating rod and several diverter plates. When the o-nitroaniline liquid flows out from the material port of the inner cavity, it impacts on the diverter and drives the diverter to rotate, that is, the rotating rod drives several diverter plates to rotate, which can slow down the impact force of the o-nitroaniline liquid, avoid the o-nitroaniline liquid material directly impacting the filter screen, causing the filter screen to deform and damage, and improve the service life of the filter screen.

[0018] (2) In the present utility model, by starting a pair of micro telescopic cylinders, the rod of the micro telescopic cylinder is extended to drive Channel 1 to be lifted, so that Channel 1 together with the pressing frame and Channel 2 are separated. At this time, the on-site staff can open the cleaning door panel and take out the filter screen for cleaning; after cleaning, the filter screen is placed inside the port of Channel 2, and then the rod of the micro telescopic cylinder is contracted to merge Channel 1 and Channel 2, and the pressing frame is pressed on the filter screen to fix the filter screen, which can disassemble, assemble and clean the filter screen conveniently and quickly, and the working efficiency is higher. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the cross-sectional structural schematic diagram of the present utility model;

[0021] Figure 3It is a schematic upward view structure of the first channel of the utility model.

[0022] Markings in the figure:

[0023] 1. Processing tank; 11. Feeding port; 12. Discharge pipe; 13. Inner cavity; 14. Electric valve; 15. Corrugated hose; 2. Liquid guiding channel; 21. First channel; 22. Second channel; 23. Pressing frame; 3. Shunt; 31. Rotating rod; 32. Shunt plate; 4. Micro telescopic cylinder; 41. Mounting block; 5. Filter screen. Specific implementation manner

[0024] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0025] As Figure 1 shown, a liquid material recovery device for o-nitroaniline includes a processing tank 1 and a feeding port 11 provided on the top surface of the processing tank 1;

[0026] As Figure 2 shown, during implementation, it includes: a liquid guiding channel 2, provided at the lower end inside the processing tank 1, the liquid guiding channel 2 is divided into a first channel 21 and a second channel 22 that are spliced together, and a filter screen 5 is provided inside the port of the second channel 22;

[0027] Specifically, a pressing frame 23 is provided on the bottom surface of the first channel 21, and the outer wall surfaces of the pressing frame 23, the first channel 21, and the outer frame of the filter screen 5 are flush. After the first channel 21 and the second channel 22 are connected as a whole, the outer wall surface of the pressing frame 23 contacts the inner wall of the second channel 22. The pressing frame 23 is used to fix the filter screen 5, so as to facilitate the disassembly and assembly of the filter screen 5;

[0028] As Figure 2 shown, during implementation, it includes: a pair of micro telescopic cylinders 4, symmetrically provided on both outer sides of the outer wall of the second channel 22 respectively, and the rod bodies of the pair of micro telescopic cylinders 4 are respectively connected to both outer sides of the outer wall of the first channel 21. By using the extension / retraction of the rod bodies of the micro telescopic cylinders 4 to drive the first channel 21, the first channel 21 and the second channel 22 are separated and combined. After the first channel 21 and the second channel 22 are separated, the filter screen 5 can be taken out for cleaning; after combination, the pressing frame 23 can be used to fix the filter screen 5, and the disassembly, assembly and cleaning of the filter screen 5 can be carried out conveniently and quickly, and the working efficiency is higher;

[0029] Specifically, a mounting block 41 is connected to the rod body end of each micro telescopic cylinder 4, and the mounting block 41 is connected to the side surface of the first channel 21 through a fixing bolt to achieve convenient assembly;

[0030] As Figure 2 and Figure 3 shown, during implementation, it includes: a diverter 3 disposed within the port of the first channel 21. The diverter 3 includes a rotating rod 31 rotatably disposed within the port of the first channel 21 and several diverter plates 32 circularly distributed and connected to the rotating rod 31. After allowing the o-nitroaniline liquid to flow out from the material outlet of the inner cavity 13 and impact on the diverter 3 to drive the diverter 3 to rotate, the impact force of the o-nitroaniline liquid can be reduced, preventing the o-nitroaniline liquid material from directly impacting the filter screen 5, causing deformation and damage to the filter screen 5, and improving the service life of the filter screen 5;

[0031] As Figures 1 to 3 shown, in this embodiment, an inner cavity 13 is provided within the treatment tank 1. The bottom of the inner cavity 13 is funnel-shaped. A corrugated hose 15 is connected between the bottom of the inner cavity 13 and the top port of the first channel 21. A cleaning door panel is provided on the side of the treatment tank 1 for removing the filter screen 5 for cleaning;

[0032] An electric valve 14 is further provided at the bottom of the treatment tank 1. An outlet pipe 12 is connected to the electric valve 14. The electric valve 14 is used to control the discharge of the filtered o-nitroaniline liquid material.

[0033] In addition, in this embodiment, the actual sizes of the various components in the application document are selected and installed before implementation according to the actual on-site requirements. The implementation process is based on the evaporation and recovery process of the o-nitroaniline liquid. It should be noted that the micro telescopic cylinder 4 and the electric valve 14 are commercially available products of the prior art, and their working principles have been made public. This application document only improves the disadvantages of the existing recovery device during the filtering process, that is, due to the direct impact of the o-nitroaniline liquid material on the filter screen 5, after long-term use, it will cause deformation and damage to the filter screen 5, affecting the filtering operation of the o-nitroaniline liquid material, and does not involve other aspects. The working principle of this o-nitroaniline liquid material recovery device is introduced as follows:

[0034] During installation and use, on-site workers connect the external conveying pipe for o-nitroaniline liquid material to the inlet 11. In this way, the o-nitroaniline liquid is input from the inlet 11 into the inner cavity 13 and then into the first channel 21. Since a diverter 3 is provided in the first channel 21, and the diverter 3 is composed of a rotating rod 31 and several diverter plates 32. As shown in the figure, when the o-nitroaniline liquid flows out from the material outlet of the inner cavity 13 and impacts on the diverter 3 to drive the diverter 3 to rotate, that is, the rotating rod 31 drives several diverter plates 32 to rotate, the impact force of the o-nitroaniline liquid can be reduced, preventing the o-nitroaniline liquid material from directly impacting the filter screen 5, causing deformation and damage to the filter screen 5, and improving the service life of the filter screen 5;

[0035] Then the o-nitroaniline liquid falls into the port of the second channel 22, and after being filtered by the filter screen 5, the electric valve 14 is opened to discharge the o-nitroaniline liquid, completing the filtering process;

[0036] After the whole device has been used for a period of time, by starting a pair of micro telescopic cylinders 4, the rod of the micro telescopic cylinder 4 is extended to drive the first channel 21 to be lifted, so that the first channel 21 is separated from the pressing frame 23 and the second channel 22. At this time, the on-site staff opens the cleaning door panel, and the filter screen 5 can be taken out for cleaning; after the cleaning is completed, the filter screen 5 is placed in the port of the second channel 22, and then the rod of the micro telescopic cylinder 4 is contracted to merge the first channel 21 and the second channel 22, and the pressing frame 23 is pressed on the filter screen 5 to fix the filter screen 5, which can disassemble and clean the filter screen 5 conveniently and quickly, and the work efficiency is higher.

[0037] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A device for recovering liquid material of o-nitroaniline, comprising a treatment tank (1) and a feeding port (11) arranged on the top surface of the treatment tank (1); It is characterized in that It further comprises: A liquid guiding channel (2) is arranged at the lower end inside the treatment tank (1). The liquid guiding channel (2) is divided into a channel one (21) and a channel two (22) which are spliced together. A filter screen (5) is arranged inside the port of the channel two (22); A pair of micro telescopic cylinders (4) are respectively symmetrically arranged on both outer sides of the outer wall of the channel two (22). The rod bodies of the pair of micro telescopic cylinders (4) are respectively connected to both outer sides of the outer wall of the channel one (21); A diverter (5) is arranged inside the port of the channel one (21). The diverter (5) comprises a rotating rod (51) rotatably arranged inside the port of the channel one (21) and several diverting plates (52) circularly distributed and connected to the rotating rod (51).

2. The recovery device for o-nitroaniline liquid material according to claim 1, characterized in that, A pressing frame (23) is arranged on the bottom surface of the channel one (21). The inner wall surfaces of the pressing frame (23), the channel one (21) and the outer frame of the filter screen (5) are flush.

3. The recovery device for o-nitroaniline liquid material according to claim 1, wherein, After the channel one (21) and the channel two (22) are connected as a whole, the outer wall surface of the pressing frame (23) contacts the inner wall of the channel two (22).

4. The recovery device for o-nitroaniline liquid material according to claim 1, characterized in that, An installation block (41) is connected to the rod body end of each micro telescopic cylinder (4). The installation block (41) is connected to the side surface of the channel one (21) through a fixing bolt.

5. The recovery device for o-nitroaniline liquid material according to claim 1, characterized in that, An inner cavity (13) is arranged inside the treatment tank (1). The bottom of the inner cavity (13) is funnel-shaped. A corrugated hose (15) is connected between the bottom of the inner cavity (13) and the top port of the channel one (21).

6. The recovery device for o-nitroaniline liquid material according to claim 1, wherein An electric valve (14) is arranged at the bottom of the treatment tank (1). A discharge pipe (12) is connected to the electric valve (14).

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