Device for decomposing phenol sodium salt and refining crude phenol

Abstract

The utility model relates to the technical field of phenol sodium salt treatment, and discloses a phenol sodium salt decomposition and crude phenol refining device which comprises a shell, an inner container is arranged in the shell, the top of the shell is connected with a top cover through a bolt, the top end of the top cover is fixedly connected with a supporting plate, the inner side of the supporting plate is rotatably connected with a rotating rod, and the outer surface of the rotating rod is fixedly connected with a pulley. One end of the hose is fixedly connected with a pipe joint, and one end of the pipe joint is in threaded connection with a flushing pipe. After the reaction is finished, the washing pipe enters the inner container through the inlet pipe, the booster pump pumps water, and the inner container, the stirring rod and the stirring paddle are washed through the high-pressure spray head of the washing pipe, so that raw materials are prevented from being adhered to the outer surfaces of the parts, corrosion possibly caused by long-term adhesion of the raw materials is avoided, the washing operation can be timely eliminated, and the service life of the raw materials is prolonged. Therefore, the service life of key components such as the inner container is prolonged, and long-term stable operation of the device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium phenolate treatment, in particular to a device for decomposing sodium phenolate and refining crude phenol. Background Art

[0002] In the chemical industry, sodium phenolate, a common organic reagent, is inherently unstable and easily oxidized. Tar processing lines, in particular, produce a significant amount of sodium phenolate each year.

[0003] The current method for treating sodium phenolate salts primarily utilizes 70% dilute sulfuric acid in combination with a heavy brine sodium sulfate solution. The specific process involves layering the acidified sodium phenolate salt. The lower sodium sulfate solution undergoes a series of complex operations, including vacuum concentration and centrifugation. This ultimately yields a 10% aqueous sodium sulfate solution and a mother liquor from the centrifuge. The former is then dried and crystallized to produce anhydrous sodium sulfate, while the latter undergoes a recycle crystallization process.

[0004] Although the above process is relatively mature to a certain extent, it has some drawbacks in practical application. First, the process requires the use of dilute sulfuric acid as a raw material, which causes extremely serious corrosive damage to equipment and pipelines. In severe cases, it can easily cause raw material leakage and lead to safety accidents. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the utility model provides a sodium phenol salt decomposition and crude phenol refining device, which has good corrosion resistance and can prevent the equipment from causing raw material leakage, thereby solving the above technical problems.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sodium phenol salt decomposition and crude phenol refining device, comprising a shell, an inner tank is arranged inside the shell, and the top of the shell is connected to a top cover by bolts, the top of the top cover is fixedly connected to a support plate, the inner side of the support plate is rotatably connected to a rotating rod, the outer surface of the rotating rod is fixedly connected to a pulley, the outer surface of the pulley slides in contact with a hose, one end of the hose is fixedly connected to a pipe joint, one end of the pipe joint is threadedly connected to a flushing pipe, the bottom of the flushing pipe is fixedly connected to a counterweight ball, a slide groove is provided through the outer surface of the slide groove, a guide rod is slidably connected to the inside of the guide rod, one end of the guide rod is fixedly connected to a clamping block, the inner side of the clamping block is rotatably connected to a pin shaft, the outer surface of the pin shaft is rotatably connected to cylinder one, the cylinder body end of the cylinder one is rotatably connected to the top plate through an axis, one end of the hose is connected to a booster pump, the top of the top cover is fixedly connected to an inlet pipe, and a sealing cover is installed on the top of the inlet pipe.

[0009] Preferably, a stirring motor is installed at the top center of the top cover, the output shaft of the stirring motor is connected to the stirring rod, the bottom end of the stirring rod is fixedly connected to the stirring paddle, and the outer surfaces of the stirring rod and the stirring paddle are coated with a ceramic coating.

[0010] Through the above technical solution, after starting the stirring motor, the stirring rod can be driven to drive the stirring paddle to rotate, so that the raw materials can be fully stirred and mixed, thereby accelerating the reaction. A ceramic coating is applied to the outer surface of the stirring rod and the stirring paddle, and an anti-corrosion coating is also applied to the inner wall of the inner tank and the top cover, so that the corrosion resistance can be enhanced.

[0011] Preferably, at least two supporting lugs are welded to the outer surface of the shell, and the top surface of the top cover is fixedly connected to the feed pipe 1 and the feed pipe 2.

[0012] According to the above technical solution, a support ear is used to fix the entire device, a three-mixed oil containing a mixture of phenols such as phenol, m-cresol, and o-cresol produced during the distillation process of tar is introduced through feed pipe 1 as one of the raw materials, a sodium hydroxide dilution is introduced through feed pipe 2, and these two raw materials are transported by a flow pump, so that the two raw materials enter the inner tank, and after sufficient stirring, the phenolic compounds in the three-mixed oil react with the sodium hydroxide dilution to generate a neutral sodium phenolate.

[0013] Preferably, the bottom of the shell is fixedly connected to the discharge pipe, the bottom of the discharge pipe is installed with a discharge valve, and a spiral tube is installed between the shell and the inner tank.

[0014] Through the above technical solution, the raw materials need to be heated during the reaction in the inner tank. By introducing high-temperature steam into the spiral tube, the inner tank can be heated, and then the raw materials in the inner tank can be heated. When the reaction is completed, the generated neutral sodium phenolate can be discharged by opening the discharge valve.

[0015] Preferably, the outer surface of the inlet pipe is fixedly connected to ear block one, the interior of ear block one is rotatably connected to ear block two via an axis, the outer surface of ear block two is rotatably connected to cylinder two, and one end of ear block two is fixedly connected to a sealing cover.

[0016] Through the above technical solution, when the reaction is completed, by starting cylinder 2, its output end contracts and drives ear block 2 to rotate around the axis connected to ear block 1, so that ear block 2 can drive the sealing cover to move away from the top of the inlet pipe, thereby exposing the port position of the inlet pipe, making it convenient to subsequently send the flushing pipe into the inlet pipe and thus into the inner tank.

[0017] Preferably, the top plate is fixedly connected to the top end of the support plate, and the outer surface of the hose is fixedly connected to a clamping block.

[0018] Preferably, a plurality of high-pressure nozzles are installed on the outer surface of the flushing pipe, and the counterweight ball includes a connecting rod arranged on the outer surface, and the connecting rod is fixedly connected to the bottom of the flushing pipe.

[0019] Through the above technical solution, when the sealing cover is opened, the cylinder is started to shrink its output end, which drives the clamping block to move upward, and the clamping block then drives the hose. Under the gravity of the counterweight ball, the flushing pipe can automatically descend and enter the inlet pipe. Then the flushing pipe together with several high-pressure nozzles on its outer surface enter the inner tank. By connecting the water pipe to the water inlet end of the booster pump, the water can be pumped into the hose after starting the booster pump, and then enter the flushing pipe, and finally sprayed out from several high-pressure nozzles, so that the inner tank, stirring rod and stirring paddle can be flushed, which can prevent the raw materials from adhering to the outer surface of the inner tank and other components, thereby further playing an anti-corrosion role and helping to extend the service life of the inner tank and other components.

[0020] Preferably, a connecting plate is provided at the bottom of the booster pump, the connecting plate is welded to the outer surface of the shell, and a guide rod is fixedly connected to each side of the clamping block.

[0021] Through the above technical solution, after flushing is completed, the flushing pipe is withdrawn from the inner tank by resetting the cylinder. This arrangement can avoid the flushing pipe and other components being directly installed in the inner tank, which may easily lead to problems such as erosion and blockage by raw materials.

[0022] Compared with the prior art, the present invention provides a device for decomposing sodium phenolate and refining crude phenol, which has the following beneficial effects:

[0023] 1. After the reaction is completed, the utility model uses the cylinder and other components to make the flushing pipe enter the inner tank through the inlet pipe, and the booster pump pumps water, and the inner tank, stirring rod and stirring paddle are flushed through the high-pressure nozzle of the flushing pipe to prevent the raw materials from adhering to the outer surface of these components. Long-term adhesion of the raw materials may cause corrosion. The flushing operation can remove them in time and reduce the risk of corrosion, thereby extending the service life of key components such as the inner tank and ensuring long-term stable operation of the device.

[0024] 2. The utility model does not install the flushing pipe and other components directly in the inner tank. After the flushing is completed, the flushing pipe can be withdrawn from the inner tank by resetting the cylinder. This can avoid the flushing pipe and other components from being in the reaction environment of the inner tank for a long time, preventing them from being corroded and blocked by raw materials, thereby ensuring the normal function and service life of the flushing pipe and other components, ensuring that each flushing operation can be carried out smoothly, and thus maintaining the efficiency and reliability of the entire device during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0026] Figure 2 For the utility model structure Figure 1 A partial enlarged schematic diagram;

[0027] Figure 3 This is a schematic cross-sectional view of the structure of the utility model;

[0028] Figure 4 It is a three-dimensional schematic diagram of the top cover and other components of the structure of the utility model;

[0029] Figure 5 For the utility model structure Figure 4 A partial enlarged schematic diagram of B in the middle;

[0030] Figure 6 It is a three-dimensional schematic diagram of the flushing pipe, counterweight ball and other components of the utility model structure.

[0031] Among them: 1. Shell; 2. Inner liner; 3. Top cover; 4. Support plate; 5. Rotating rod; 6. Pulley; 7. Hose; 8. Pipe joint; 9. Flushing pipe; 10. Counterweight ball; 11. Slide; 12. Guide rod; 13. Clamping block; 14. Pin; 15. Cylinder 1; 16. Top plate; 17. Booster pump; 18. Inlet pipe; 19. Sealing cover; 20. Stirring motor; 21. Stirring rod; 22. Stirring paddle; 23. Support ear; 24. Feed pipe 1; 25. Feed pipe 2; 26. Discharge pipe; 27. Discharge valve; 28. Spiral tube; 29. ​​Ear block 1; 30. Ear block 2; 31. Cylinder 2; 32. High-pressure nozzle. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 5The invention relates to a sodium phenol salt decomposition and crude phenol refining device, comprising a shell 1, an inner tank 2 is arranged inside the shell 1, and the top of the shell 1 is connected to a top cover 3 by bolts, the top of the top cover 3 is fixedly connected to a support plate 4, the inner side of the support plate 4 is rotatably connected to a rotating rod 5, the outer surface of the rotating rod 5 is fixedly connected to a pulley 6, the outer surface of the pulley 6 slides in contact with a hose 7, one end of the hose 7 is fixedly connected to a pipe joint 8, one end of the pipe joint 8 is threadedly connected to a flushing pipe 9, and the bottom of the flushing pipe 9 is fixedly connected to a counterweight ball 10. A chute 11 is provided on the outer surface of the support plate 4, the inside of the chute 11 is slidably connected to a guide rod 12, one end of the guide rod 12 is fixedly connected to a clamping block 13, the inner side of the clamping block 13 is rotatably connected to a pin 14, the outer surface of the pin 14 is rotatably connected to a cylinder 15, the cylinder end of the cylinder 15 is rotatably connected to a top plate 16 through an axis, one end of the hose 7 is connected to a booster pump 17, the top of the top cover 3 is fixedly connected to an inlet pipe 18, and a sealing cover 19 is installed on the top of the inlet pipe 18.

[0034] Specifically, a stirring motor 20 is mounted at the top center of the top cover 3. The output shaft of the stirring motor 20 is connected to a stirring rod 21. The bottom end of the stirring rod 21 is fixedly connected to a stirring paddle 22. The outer surfaces of the stirring rod 21 and the stirring paddle 22 are both coated with a ceramic coating. Advantageously, by starting the stirring motor 20, the stirring rod 21 can be driven to rotate the stirring paddle 22, thereby fully stirring and mixing the raw materials, thereby accelerating the reaction. By coating the outer surfaces of the stirring rod 21 and the stirring paddle 22 with a ceramic coating, and also coating the inner walls of the inner liner 2 and the top cover 3 with an anti-corrosion coating, the corrosion resistance can be enhanced.

[0035] Specifically, at least two supporting lugs 23 are welded to the outer surface of the shell 1, and the top surface of the top cover 3 is fixedly connected to the feed pipe 1 24 and the feed pipe 2 25. The advantage is that the supporting lugs 23 are used to fix the entire device, and the three-mixed oil containing a mixture of phenols such as phenol, m-cresol, and o-cresol produced during the distillation process of tar is connected through the feed pipe 1 24 as one of the raw materials. By connecting a sodium hydroxide dilution liquid to the feed pipe 2 25 and transporting these two raw materials through a flow pump, the two raw materials enter the inner tank 2, and after sufficient stirring, the phenolic compounds in the three-mixed oil react with the sodium hydroxide dilution liquid to generate a neutral sodium phenolate.

[0036] Specifically, the bottom of the shell 1 is fixedly connected to the discharge pipe 26, the bottom of the discharge pipe 26 is installed with a discharge valve 27, and a spiral tube 28 is installed between the shell 1 and the inner liner 2. The advantage is that the raw materials need to be heated during the reaction in the inner liner 2. By passing high-temperature steam into the spiral tube 28, the inner liner 2 can be heated, and then the raw materials in the inner liner 2 can be heated. When the reaction is completed, the generated neutral sodium phenolate can be discharged by opening the discharge valve 27.

[0037] Specifically, the outer surface of the inlet tube 18 is fixedly connected to the first lug 29, the interior of the first lug 29 is rotatably connected to the second lug 30 via an axis. The outer surface of the second lug 30 is rotatably connected to the second cylinder 31, and one end of the second lug 30 is fixedly connected to the sealing cover 19. Advantageously, after the reaction is completed, the second cylinder 31 is activated to contract its output end, driving the second lug 30 to rotate about its axis connecting it to the first lug 29. This allows the second lug 30 to drive the sealing cover 19 away from the top of the inlet tube 18, thereby exposing the end of the inlet tube 18 and facilitating the subsequent insertion of the flushing tube 9 into the inlet tube 18 and thereby into the inner tank 2.

[0038] Specifically, the top plate 16 is fixedly connected to the top end of the support plate 4 , and the outer surface of the hose 7 is fixedly connected to the clamping block 13 .

[0039] Specifically, a plurality of high-pressure nozzles 32 are installed on the outer surface of the flushing pipe 9, and the weighted ball 10 includes a connecting rod arranged on the outer surface, which is fixedly connected to the bottom of the flushing pipe 9. The advantage is that when the sealing cover 19 is opened, the output end of the cylinder 15 is contracted by starting the cylinder 15, and the clamping block 13 is driven to move upward, and the clamping block 13 then drives the hose 7. Under the gravity of the weighted ball 10, the flushing pipe 9 can automatically descend and enter the inlet pipe 18. Then, the flushing pipe 9 together with the plurality of high-pressure nozzles 32 on its outer surface enters the inner tank 2. By connecting the water pipe to the water inlet end of the booster pump 17, after starting the booster pump 17, water can be pumped into the hose 7, then enter the flushing pipe 9, and finally sprayed out from the plurality of high-pressure nozzles 32, so that the inner tank 2, the stirring rod 21 and the stirring paddle 22 can be rinsed, so that the raw materials can be prevented from adhering to the outer surface of the inner tank 2 and other components, thereby further playing an anti-corrosion role and helping to extend the service life of the inner tank 2 and other components.

[0040] Specifically, a connecting plate is provided at the bottom of the booster pump 17 and welded to the outer surface of the housing 1. A guide rod 12 is fixedly connected to each side of the clamping block 13. Advantageously, after flushing is completed, the flushing tube 9 is withdrawn from the inner liner 2 by resetting the cylinder 15. This arrangement avoids problems such as flushing tube 9 being installed directly in the inner liner 2, which could easily lead to erosion and blockage by the raw material.

[0041] During use, first, the three-mixed oil containing a mixture of phenols such as phenol, m-cresol, and o-cresol produced during the distillation process of tar is introduced into the inner liner 2 through the feed pipe 1 24, and the sodium hydroxide dilution is also introduced into the inner liner 2 through the feed pipe 25. The stirring rod 21 is driven by the stirring motor 20 to drive the stirring paddle 22 to rotate, so that the raw materials can be fully stirred and mixed. High-temperature steam is introduced into the spiral tube 28 to heat the inner liner 2, and then the raw materials are heated. After the raw materials are fully reacted, the generated neutral phenol sodium salt can be discharged by opening the discharge valve 27; when the reaction is completed, the cylinder 2 31 is started to shrink its output end and drive the ear block 2 30 to rotate around the axis connected to the ear block 1 29, so that the ear block 2 30 can drive the sealing cover 19 from the inlet pipe 1 8 is removed, so that the port position of the inlet pipe 18 can be exposed, and then the cylinder 15 is started to shrink its output end and drive the clamping block 13 to move upward, and the clamping block 13 then drives the hose 7. Under the gravity of the counterweight ball 10, the flushing pipe 9 can automatically descend and enter the inlet pipe 18, and then the flushing pipe 9 together with several high-pressure nozzles 32 on its outer surface enter the inner tank 2. By connecting the water pipe to the water inlet end of the booster pump 17, the water can be pumped into the hose 7 after starting the booster pump 17, and then enter the flushing pipe 9, and finally sprayed out from several high-pressure nozzles 32, so that the inner tank 2, the stirring rod 21 and the stirring paddle 22 can be flushed; after the flushing is completed, the flushing pipe 9 is withdrawn from the inner tank 2 by resetting the cylinder 15.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for decomposing sodium phenolate and refining crude phenol, comprising a housing (1), characterized in that: An inner liner (2) is provided inside the shell (1), and the top of the shell (1) is connected to a top cover (3) by bolts, the top end of the top cover (3) is fixedly connected to a support plate (4), the inner side of the support plate (4) is rotatably connected to a rotating rod (5), the outer surface of the rotating rod (5) is fixedly connected to a pulley (6), the outer surface of the pulley (6) is in sliding contact with a hose (7), one end of the hose (7) is fixedly connected to a pipe joint (8), one end of the pipe joint (8) is threadedly connected to a flushing pipe (9), the bottom of the flushing pipe (9) is fixedly connected to a counterweight ball (10), the support plate ( 4) is provided with a slide groove (11) through the outer surface thereof, the inner portion of the slide groove (11) is slidably connected to a guide rod (12), one end of the guide rod (12) is fixedly connected to a clamping block (13), the inner side of the clamping block (13) is rotatably connected to a pin shaft (14), the outer surface of the pin shaft (14) is rotatably connected to a cylinder one (15), the cylinder end of the cylinder one (15) is rotatably connected to a top plate (16) through an axis, one end of the hose (7) is connected to a booster pump (17), the top of the top cover (3) is fixedly connected to an inlet pipe (18), and a sealing cover (19) is installed on the top of the inlet pipe (18).

2. A sodium phenolate decomposition and crude phenol purification device according to claim 1, characterized in that: A stirring motor (20) is installed at the top center of the top cover (3), the output shaft of the stirring motor (20) is connected to a stirring rod (21), the bottom end of the stirring rod (21) is fixedly connected to a stirring paddle (22), and the outer surfaces of the stirring rod (21) and the stirring paddle (22) are both coated with a ceramic coating.

3. A sodium phenolate decomposition and crude phenol purification device according to claim 1, characterized in that: At least two supporting lugs (23) are welded to the outer surface of the shell (1), and the top surface of the top cover (3) is fixedly connected to the first feed pipe (24) and the second feed pipe (25).

4. A sodium phenolate decomposition and crude phenol purification device according to claim 1, characterized in that: The bottom of the shell (1) is fixedly connected to a discharge pipe (26), a discharge valve (27) is installed at the bottom of the discharge pipe (26), and a spiral tube (28) is installed between the shell (1) and the inner container (2).

5. A sodium phenolate decomposition and crude phenol purification device according to claim 1, characterized in that: The outer surface of the inlet pipe (18) is fixedly connected to the ear block 1 (29), the interior of the ear block 1 (29) is rotatably connected to the ear block 2 (30) via an axis, the outer surface of the ear block 2 (30) is rotatably connected to the cylinder 2 (31), and one end of the ear block 2 (30) is fixedly connected to the sealing cover (19).

6. The device for decomposing sodium phenolate and refining crude phenol according to claim 1, wherein: The top plate (16) is fixedly connected to the top end of the support plate (4), and the outer surface of the hose (7) is fixedly connected to a clamping block (13).

7. The device for decomposing sodium phenolate and refining crude phenol according to claim 1, characterized in that: A plurality of high-pressure nozzles (32) are installed on the outer surface of the flushing pipe (9), and the weighted ball (10) includes a connecting rod arranged on the outer surface, and the connecting rod is fixedly connected to the bottom of the flushing pipe (9).

8. The device for decomposing sodium phenolate and refining crude phenol according to claim 1, characterized in that: A connecting plate is provided at the bottom of the booster pump (17), and the connecting plate is welded to the outer surface of the housing (1). A guide rod (12) is fixedly connected to each of the two sides of the clamping block (13).

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