A mother liquor settler for producing p-aminophenol

Abstract

The utility model discloses a mother liquor settler of production p-aminophenol, specifically related to p-aminophenol production technical field, including support and the settlement cylinder of fixed in the top of support, one side top of settlement cylinder is fixedly connected with the liquid outlet pipe, and the top of settlement cylinder is provided with the top cover, and the middle part of top cover inserts and is provided with the feed pipe, the top of feed pipe is fixedly connected with the feeding hopper, and the bottom outside of feed pipe is fixedly connected with first steady flow board and porous cover. The utility model discloses first through the setting of the anti -impact board can block the liquid of input through the feed pipe and make liquid dispersion to the flow of all around, then through the further reduction of the blocking of porous cover and enter the impact of liquid, thereby reducing the influence of the liquid to the liquid in the settlement cylinder inside, improve the settlement effect, and through the heating of the electric heating disc to the liquid of entering, can realize the liquid heating, thereby can improve the settlement efficiency, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of p-aminophenol production technology, and more specifically, to a mother liquor settling device for producing p-aminophenol. Background Technology

[0002] p-Aminophenol is an important organic chemical raw material and intermediate with wide applications in many fields such as pharmaceuticals, dyes, and rubber additives. In the pharmaceutical industry, it is a key raw material for the synthesis of drugs such as paracetamol and atorvastatin. In the dye industry, it can be used to synthesize azo dyes and sulfur dyes. In the rubber industry, it is an important component in the manufacture of antioxidants. In the production process of p-aminophenol, sedimentation is an important separation step, mainly used to separate solid impurities, catalysts, or unreacted raw materials from the reaction products to obtain pure p-aminophenol products. Traditional settling tanks have a relatively simple structure. They typically require liquid to be input through a settling pipe, and then the mother liquor settles naturally by its own gravity. The directly input liquid will exert an impact and agitation force on the liquid inside the settling tank. This impact force will disrupt the relatively stable settling environment inside the settling tank, causing impurity particles that have already begun to settle to resuspend, which seriously interferes with the natural settling process of the mother liquor and leads to a significant reduction in settling efficiency. Therefore, a mother liquor settling tank for the production of p-aminophenol is proposed. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a mother liquor settling device for producing p-aminophenol, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mother liquor settling device for producing p-aminophenol, comprising a support and a settling cylinder fixed to the top of the support. A liquid outlet pipe is fixedly connected to the top of one side of the settling cylinder, which facilitates the discharge of the light mother liquor located at the top after settling. A top cover is provided on the top of the settling cylinder, which serves to prevent overflow. A feed pipe is inserted into the middle of the top cover, which facilitates the input of the separated and filtered liquid into the interior of the settling cylinder. A feed hopper is fixedly connected to the top of the feed pipe, which facilitates the input of liquid. A first flow stabilizer plate and a porous cover are fixedly connected to the bottom of the feed pipe. The cooperation of the first flow stabilizer plate and the porous cover can stabilize the upward-moving light mother liquor, and the porous cover can reduce the impact force of the liquid input into the settling cylinder on the original liquid in the middle of the settling cylinder, thereby improving the settling effect. The bottom of the feed pipe is provided with an anti-impact plate, and the top of the anti-impact plate is symmetrically fixed with a first fixing rod. The anti-impact plate can make the incoming liquid flow to the side, which can play a role in preventing impact. The first fixing rod can be used to fix the anti-impact plate to the bottom of the feed pipe. The settling cylinder is provided with two second flow stabilizing plates in the middle, and multiple second fixing rods are fixedly connected between the two second flow stabilizing plates. A heating plate is fixedly connected to the bottom of the second flow stabilizing plate, and lifting rods are symmetrically fixedly connected to the top two sides of the top of the second flow stabilizing plate. An electric wire is connected to one side of the heating plate. The second flow stabilizing plates can improve the flow stabilization effect of the settling liquid, and the heating plate can heat the incoming liquid to improve the settling and separation efficiency. The electric wire can also be used to easily connect to an external power supply box.

[0005] Preferably, a discharge pipe is fixedly connected to the bottom of the settling cylinder, a valve is provided in the middle of the discharge pipe, the bottom end of the settling cylinder is set with a conical structure, and a temperature sensor is provided at the bottom of the top cover. By opening the valve, the settled particles can be discharged through the discharge pipe. The temperature sensor can be used to detect the temperature of the liquid inside the settling cylinder, which is convenient for temperature control.

[0006] Preferably, the diameter of the first flow stabilizer plate is the same as the diameter of the second flow stabilizer plate, and the diameters of the first flow stabilizer plate and the second flow stabilizer plate are adapted to the inner diameter of the settling cylinder. The stability of the liquid inside the settling cylinder can be improved by the first flow stabilizer plate and the second flow stabilizer plate, thereby improving the settling effect.

[0007] Preferably, the second current stabilizer is disposed at the bottom of the first current stabilizer, a waterproof adapter is inserted in the middle of the top cover, a waterproof connector is fed into one end of the wire, and the waterproof connector is connected to one end of the waterproof adapter, so that one end of the wire can be conveniently connected to the power supply box in sequence through the waterproof adapter.

[0008] Preferably, a slot is provided on one side of the first current stabilizer plate, and the wire passes through the middle of the slot. The slot allows the installation and use of the wire to be carried out without affecting the installation of the first current stabilizer plate.

[0009] Preferably, the shock absorber is a cone, with its tip located near the feed pipe. The diameter of the shock absorber is larger than that of the feed pipe. The shock absorber can reduce the impact force on the incoming liquid, facilitate the dispersion of the incoming liquid, and improve the stability of the liquid.

[0010] Preferably, the porous cover is located outside the impact-resistant plate, the top end of the first fixing rod is fixed to the bottom end of the feed pipe, and the second flow stabilizer is set at the bottom of the porous cover. The porous cover further reduces the liquid impact force and improves the sedimentation and dispersion effect.

[0011] The technical effects and advantages of this utility model are as follows: 1. This utility model firstly uses an anti-impact plate to block the liquid entering through the feed pipe while dispersing the liquid to flow in all directions. Then, the impact force of the entering liquid is further reduced by the barrier of the porous cover, thereby reducing the impact of the entering liquid on the liquid inside the settling cylinder and improving the settling effect. In addition, the entering liquid is heated by an electric heating plate, which can raise the temperature of the liquid, thereby improving the settling efficiency and work efficiency. 2. This utility model also achieves the function of stabilizing the liquid inside the settling cylinder by setting the first and second flow stabilizing plates, thereby improving the stability of the liquid without affecting the sedimentation and separation of the liquid. The top light mother liquor after sedimentation can be easily discharged through the liquid outlet pipe, and the solid particles after sedimentation can be easily discharged through the discharge pipe. The electric heating plate can be easily connected to the external power supply box in sequence through the cooperation of the wire and waterproof connector with the waterproof adapter. The slot makes it easy for the wire to pass through the middle of the first flow stabilizing plate and connect to the waterproof adapter, thereby improving the use effect. In summary, through the interaction of the above-mentioned multiple functions, the liquid entering through the feed pipe can be blocked while the liquid is dispersed and flows in all directions to reduce the impact force of the entering liquid. This reduces the impact of the entering liquid on the liquid inside the settling cylinder, improves the settling effect, and also increases the settling efficiency and work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the bracket of this utility model.

[0015] Figure 4 This is a schematic diagram of the connection structure of the two second flow stabilizers of this utility model.

[0016] Figure 5 This is a schematic diagram of the connection structure between the feed pipe, the first flow stabilizer, and the perforated cover of this utility model.

[0017] The attached diagram is labeled as follows: 1. Support; 2. Settling cylinder; 3. Discharge pipe; 4. Top cover; 5. Feed pipe; 6. Feed hopper; 7. First flow stabilizer plate; 8. Perforated cover; 9. First fixing rod; 10. Impact-resistant plate; 11. Slot; 12. Second flow stabilizer plate; 13. Second fixing rod; 14. Heating plate; 15. Lifting rod; 16. Wire; 17. Waterproof connector; 18. Waterproof adapter; 19. Discharge pipe; 20. Valve. Detailed Implementation

[0018] 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.

[0019] As attached Figure 1-5 The present invention relates to a mother liquor settling device for producing p-aminophenol, comprising a support 1 and a settling cylinder 2 fixed to the top of the support 1. A liquid outlet pipe 3 is fixedly connected to the top of one side of the settling cylinder 2, which facilitates the discharge of the light mother liquor located at the top after settling. A top cover 4 is provided on the top of the settling cylinder 2, which serves to prevent overflow. A feed pipe 5 is inserted in the middle of the top cover 4, which facilitates the input of the separated and filtered liquid into the interior of the settling cylinder 2. A feed hopper 6 is fixedly connected to the top of the feed pipe 5, which facilitates the input of liquid. A first flow stabilizer 7 and a porous cover 8 are fixedly connected to the bottom of the feed pipe 5. The cooperation of the first flow stabilizer 7 and the porous cover 8 can stabilize the upward flow of the light mother liquor, and the porous cover 8 can reduce the impact force of the liquid input into the settling cylinder 2 on the original liquid in the middle of the settling cylinder 2, thereby improving the settling effect. An anti-impact plate 10 is provided at the bottom of the feed pipe 5. First fixing rods 9 are symmetrically fixed around the top of the anti-impact plate 10. Two second flow stabilizing plates 12 are provided in the middle of the settling cylinder 2. Multiple second fixing rods 13 are fixedly connected between the two second flow stabilizing plates 12. A heating plate 14 is fixedly connected to the bottom of the second flow stabilizing plate 12. Lifting rods 15 are symmetrically fixed to both sides of the top of the top second flow stabilizing plate 12. An electric wire 16 is connected to one side of the heating plate 14. The anti-impact plate 10 can make the incoming liquid flow to the side, which can play a role in preventing impact. The first fixing rods 9 can easily fix the anti-impact plate 10 to the bottom of the feed pipe 5. The second flow stabilizing plate 12 can improve the flow stabilization effect of the settling liquid. The heating plate 14 can heat the incoming liquid, improve the settling and separation efficiency. The electric wire 16 can easily connect to the external power supply box.

[0020] As attached Figure 1-5As shown, a discharge pipe 19 is fixedly connected to the bottom of the settling cylinder 2, and a valve 20 is installed in the middle of the discharge pipe 19. The bottom end of the settling cylinder 2 is a conical structure. A temperature sensor is installed at the bottom of the top cover 4. The diameter of the first flow stabilizer 7 is the same as the diameter of the second flow stabilizer 12. The diameters of the first flow stabilizer 7 and the second flow stabilizer 12 are both adapted to the inner diameter of the settling cylinder 2. The second flow stabilizer 12 is located at the bottom of the first flow stabilizer 7. A waterproof adapter 18 is inserted into the middle of the top cover 4. A waterproof connector 17 is fed into one end of the wire 16, and the waterproof connector 17 is connected to one end of the waterproof adapter 18. A slot 11 is opened on one side of the first flow stabilizer 7, and the wire 16 passes through the middle of the slot 11. The impact plate 10 is a cone, and the tip of the impact plate 10 is located near the feed pipe 5. The diameter of the impact plate 10 is larger than the diameter of the feed pipe 5. The porous cover 8 is located outside the impact-resistant plate 10. The top of the first fixing rod 9 is fixed to the bottom of the feed pipe 5. The second flow stabilizer 12 is set at the bottom of the porous cover 8. By opening the valve 20, the settled particles can be discharged through the discharge pipe 19. The temperature sensor can be used to detect the temperature of the liquid inside the settling cylinder 2 for easy temperature control. The first flow stabilizer 7 and the second flow stabilizer 12 can improve the stability of the liquid inside the settling cylinder 2 and improve the settling effect. The waterproof adapter 18 can be used to connect one end of the wire 16 to the power supply box in sequence. The slot 11 can be used to install the first flow stabilizer 7 without affecting the installation and use of the wire 16. The impact-resistant plate 10 can reduce the impact force of the entering liquid, facilitate the dispersion of the entering liquid, and improve the stability of the liquid. The porous cover 8 further reduces the impact force of the liquid and improves the settling and dispersion effect.

[0021] The working principle of this utility model is as follows: When in use, the liquid after centrifugal separation is fed into the interior of the settling cylinder 2 through the feed hopper 6 and the feed pipe 5. When the liquid enters, it will be blocked and dispersed by the anti-impact plate 10 to reduce the impact force of the liquid entering. The porous cover 8 further disperses and blocks the liquid after dispersion, so that the liquid entering is more gentle. Then, the heating plate 14 is turned on by the external power supply box to raise the internal temperature of the settling cylinder 2, thereby improving the settling efficiency of the liquid inside the settling cylinder 2. At the same time, the stability of the liquid is improved by the cooperation of the second flow stabilizer 12 and the first flow stabilizer 7, thereby improving the settling effect. The light mother liquor at the top of the liquid can be discharged by opening the liquid outlet pipe 3, and the bottom particles after settling can be discharged by opening the valve 20 in the middle of the discharge pipe 19, thereby improving the use effect.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mother liquor settling device for producing p-aminophenol, comprising a support (1) and a settling cylinder (2) fixed to the top of the support (1), characterized in that: A liquid outlet pipe (3) is fixedly connected to the top of one side of the settling cylinder (2). A top cover (4) is provided on the top of the settling cylinder (2). A feed pipe (5) is inserted in the middle of the top cover (4). A feed hopper (6) is fixedly connected to the top of the feed pipe (5). A first flow stabilizer plate (7) and a porous cover (8) are fixedly connected to the bottom of the feed pipe (5). The bottom of the feed pipe (5) is provided with an anti-impact plate (10), and the top of the anti-impact plate (10) is symmetrically fixed with a first fixing rod (9). Two second flow stabilizers (12) are provided in the middle of the settling cylinder (2). Multiple second fixing rods (13) are fixedly connected between the two second flow stabilizers (12). A heating plate (14) is fixedly connected to the bottom of the second flow stabilizer (12). Lifting rods (15) are symmetrically fixedly connected to the top two sides of the top of the second flow stabilizer (12). An electric wire (16) is connected to one side of the heating plate (14).

2. A mother liquor settling device for producing p-aminophenol according to claim 1, characterized in that: The bottom of the settling cylinder (2) is fixedly connected to a discharge pipe (19), a valve (20) is provided in the middle of the discharge pipe (19), the bottom end of the settling cylinder (2) is set as a conical structure, and a temperature sensor is provided at the bottom of the top cover (4).

3. A mother liquor settling device for producing p-aminophenol according to claim 1, characterized in that: The diameter of the first flow stabilizer (7) is the same as that of the second flow stabilizer (12), and the diameters of the first flow stabilizer (7) and the second flow stabilizer (12) are both adapted to the inner diameter of the settling cylinder (2).

4. A mother liquor settling device for producing p-aminophenol according to claim 1, characterized in that: The second flow stabilizer (12) is located at the bottom of the first flow stabilizer (7), and a waterproof adapter (18) is inserted in the middle of the top cover (4). A waterproof connector (17) is fed into one end of the wire (16), and the waterproof connector (17) is connected to one end of the waterproof adapter (18).

5. A mother liquor settling device for producing p-aminophenol according to claim 1, characterized in that: A slot (11) is provided on one side of the first flow stabilizer (7), and the wire (16) passes through the middle of the slot (11).

6. A mother liquor settling device for producing p-aminophenol according to claim 1, characterized in that: The impact plate (10) is configured as a cone, with the tip of the impact plate (10) located on the side close to the feed pipe (5), and the diameter of the impact plate (10) is larger than the diameter of the feed pipe (5).

7. A mother liquor settling device for producing p-aminophenol according to claim 1, characterized in that: The porous cover (8) is located outside the impact plate (10), the top end of the first fixing rod (9) is fixed to the bottom end of the feed pipe (5), and the second flow stabilizer (12) is set at the bottom of the porous cover (8).

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