Distillation tower for producing o-phenylphenol
By introducing a column plate, a centralized collection plate and an air guide ring into the distillation tower, the problem of condensation and attachment of o-phenylphenol is solved, and the convenient collection of o-phenylphenol is achieved.
Patent Information
- Application Number
- CN202422103711.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-08-29
AI Technical Summary
O-phenylphenol condenses and adheres at the top of the distillation column, resulting in inconvenience in collection.
A distillation tower is designed, including a tower plate, a centralized collection plate, a wind guide ring and a bonding scraper. The condensate on the top of the tower is scraped away by the scraper and the air guide ring is used to prevent the steam from contacting the bottom of the collection plate, so as to achieve effective collection of steam.
The convenient collection of o-phenylphenol is achieved, avoiding the adhesion of condensate on the top of the tower and improving the collection efficiency.
Smart Images
Figure CN223220983U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of distillation purification, and in particular relates to a distillation tower for producing o-phenylphenol. Background Art
[0002] o-phenylphenol is an organic compound, which is a white, light yellow or light red crystalline powder. The production of o-phenylphenol usually involves multiple chemical reaction steps, and the reaction product is often a mixture of multiple substances. It is necessary to use a distillation tower to separate the target product o-phenylphenol and remove impurities and unreacted raw materials. After the circulation operation of the distillation tower, the o-phenylphenol vapor will be enriched at the top of the tower, while other impurities will be enriched at the bottom of the tower. When the o-phenylphenol vapor contacts the inner wall of the tower top, it is easy to condense or solidify at the top of the tower, causing the o-phenylphenol to adhere to the inner wall of the tower top and drip downward in the tower, which makes it inconvenient for the staff to collect the o-phenylphenol raw materials. Utility Model Content
[0003] The utility model provides a distillation tower for producing o-phenylphenol, which has the characteristic that after the o-phenylphenol is distilled and purified, workers can conveniently collect the attached o-phenylphenol raw materials.
[0004] The utility model provides the following technical solution: it includes an operating tower body, a fan bin, a condenser, a reboiler and two delivery pumps, the fan bin is installed on one side of the operating tower body, the two delivery pumps are respectively connected to the condenser and the reboiler through pipelines, and the two delivery pumps are both connected to the operating tower body through a feed pipe, a plurality of tower plates are installed inside the operating tower body, the plurality of tower plates are vertically and evenly distributed, a downcomer is fixedly connected to one side of the tower plate, two overflow weirs are fixedly connected to the top of the tower plate, sieve holes are opened inside the tower plate, a centralized collection plate is fixedly connected to the inside of the operating tower body, an air guide ring is fixedly connected to the inside of the operating tower body, the air guide ring is located below the centralized collection plate, a fitting scraper is rotated inside the operating tower body, the fitting scraper is located above the centralized collection plate, and a connecting shaft is fixedly connected to the inside of the fitting scraper.
[0005] Wherein, a supporting plate is fixedly connected to the bottom end of one of the delivery pumps, and a connecting frame is fixedly connected between the supporting plate and the reboiler.
[0006] Wherein, a gas pipe is connected between the condenser and the operating tower body, and a liquid pipe is connected between the reboiler and the operating tower body.
[0007] Among them, a plurality of air exhaust ports are opened on the top of the air guide ring, and an air inlet is opened on one side of the air guide ring.
[0008] Wherein, the bottom end of the working tower body is fixedly connected to a support frame, and the bottom end of one of the delivery pumps is fixedly connected to a fixing frame.
[0009] The beneficial effect of the utility model is that, through the cooperation of the tower plates and the centralized collecting plates and other components, after the separation and purification operation of the o-phenylphenol raw material is completed, the raw material condensed and attached to the inner wall of the top of the working tower body can be scraped off while preventing the o-phenylphenol raw material from contacting the bottom of the centralized collecting plate, and the raw material falls to the top of the centralized collecting plate, thereby facilitating the collection operation of the o-phenylphenol raw material by the staff.
[0010] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the tower plate in the utility model;
[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the air guide ring in the utility model;
[0015] Figure 5 for Figure 2 Enlarged schematic diagram of point A in the middle.
[0016] In the figure: 1. Operating tower body; 11. Fan chamber; 2. Condenser; 21. Reboiler; 22. Delivery pump; 23. Feed pipe; 24. Carrying plate; 25. Connecting frame; 26. Gas pipe; 27. Liquid pipe; 3. Tower plate; 31. Downcomer; 32. Overflow weir; 33. Sieve hole; 4. Centralized collecting plate; 41. Air guide ring; 42. Fitting scraper; 43. Connecting shaft; 44. Exhaust port; 45. Air inlet; 5. Support frame; 51. Fixed frame. DETAILED DESCRIPTION
[0017] See also Figure 1-Figure 5The utility model provides the following technical solutions: it includes an operating tower body 1, a fan warehouse 11, a condenser 2, a reboiler 21 and two delivery pumps 22. The fan warehouse 11 is installed on one side of the operating tower body 1. The two delivery pumps 22 are connected to the condenser 2 and the reboiler 21 respectively through pipelines, and the two delivery pumps 22 are connected to the operating tower body 1 through a feed pipe 23. A plurality of tower plates 3 are installed inside the operating tower body 1. The plurality of tower plates 3 are vertically and evenly distributed. A downcomer 31 is fixedly connected to one side of the tower plate 3. Two overflow weirs 32 are fixedly connected to the top of the tower plate 3. A sieve hole 33 is opened inside the tower plate 3. A centralized collecting plate 4 is fixedly connected to the inside of the operating tower body 1. An air guide ring 41 is fixedly connected to the inside of the operating tower body 1. The air guide ring 41 is located below the centralized collecting plate 4. A fitting scraper 42 is rotated inside the operating tower body 1. The fitting scraper 42 is located above the centralized collecting plate 4. A connecting shaft 43 is fixedly connected to the inside of the fitting scraper 42.
[0018] In this embodiment, the operating tower body 1 is used to distill and purify the o-phenylphenol mixture. A condenser 2, a reboiler 21 and two delivery pumps 22 are provided on one side of the operating tower body 1. The staff can first heat and evaporate the o-phenylphenol mixture through the reboiler 21, and the steam will be introduced into one of the delivery pumps 22. The delivery pump 22 will introduce the steam into the operating tower body 1. The steam entering the operating tower body 1 will move upward due to the high temperature. During the upward movement of the steam, it will pass through the sieve holes 33 from the inside of several tower plates 3, and the substance with a larger boiling point in the mixture will be liquefied due to the temperature dropping below the boiling point and remain at the top of the tower plate 3. The o-phenylphenol with a smaller boiling point will continue to move upward in a vapor state until The steam moves to the top of the operating tower body 1 and then enters the inside of the condenser 2. At this time, the steam entering the inside of the condenser 2 is o-phenylphenol and some residues. After entering the inside of the condenser 2, the steam will be condensed into liquid and enter the inside of the delivery pump 22. The liquid entering the inside of the delivery pump 22 will enter the inside of the operating tower body 1 again through the feed pipe 23 and reach the top of the tower plate 3. When the liquid reaching the top of the tower plate 3 is higher than the overflow weir 32, it will flow downward through the downcomer 31 to the inside of the tower plate 3 located below, until it flows to the bottom of the operating tower body 1 and enters the inside of the reboiler 21 for heating in this cycle. After multiple cycles, o-phenylphenol will be enriched at the top of the operating tower body 1, and other substances will gradually move to the bottom of the operating tower body 1. The operation tower body 1 is equipped with a pressure sensor so that the two delivery pumps 22 can control the amount of liquid or steam introduced into the operation tower body 1, so that the operation tower body 1 maintains a suitable pressure, and the liquid at the top of the tray 3 will not fall downward through the sieve hole 33 under the force of the gas continuously pushing upward, ensuring that the steam and the liquid can continuously exchange heat, so that the substance with a high boiling point can be condensed into liquid after the heat exchange, thereby achieving the operation of separating and purifying the o-phenylphenol raw material with a low boiling point. When o-phenylphenol is enriched at the top of the operation tower body 1, the o-phenylphenol will contact the inner wall of the top of the operation tower body 1 and produce condensation and other phenomena. At this time, the staff can start the operation tower body 1. The driving motor at the top of the tower body 1, and the output end of the driving motor is connected to the connecting shaft 43, so that the connecting shaft 43 can drive the fitting scraper 42 to rotate inside the working tower body 1, and the fitting scraper 42 fits with the inner wall of the top of the working tower body 1, so that the fitting scraper 42 will scrape off the o-catechol raw material attached to the inner wall of the top of the working tower body 1 during rotation, and then the o-catechol raw material will fall on the top of the centralized collection plate 4 and move under the guidance of the centralized collection plate 4. At this time, the raw material at the top of the centralized collection plate 4 will be output through the pipeline installed on the outside of the working tower body 1. The o-catechol vapor will move upward through the center of the centralized collection plate 4 during the vertical upward movement inside the working tower body 1, and a fan bin 11 is installed on the outside of the working tower body 1.The fan chamber 11 will continuously exert a certain force on the air and guide it into the air guide ring 41. When the wind force inside the air guide ring 41 is discharged, it will contact the bottom of the centralized collection plate 4, forming a wind belt at the bottom of the centralized collection plate 4, thereby preventing the o-catechol vapor from contacting the bottom of the centralized collection plate 4, ensuring that the o-catechol vapor can reach the top of the operating tower body 1 and be collected at the top of the centralized collection plate 4, so that the staff can guide the o-catechol raw material out. After the air discharged through the air guide ring 41 follows the steam into the condenser 2, since nitrogen, oxygen, etc., which account for a relatively high proportion in the air, are stable gases and will not react with the mixed steam, and the boiling points of nitrogen and oxygen are much lower than those of the mixture, the air will not condense the air inside the condenser 2. An exhaust valve is installed inside the condenser 2 to discharge the air at a regular time to stably complete the condensation of the mixed steam.
[0019] A supporting plate 24 is fixedly connected to the bottom end of one of the delivery pumps 22, and a connecting frame 25 is fixedly connected between the supporting plate 24 and the reboiler 21; the supporting plate 24 fixed at the bottom end of the delivery pump 22 is used to support the delivery pump 22, and a connecting frame 25 is fixed between the supporting plate 24 and the reboiler 21, so that the reboiler 21 can complete the support operation of the delivery pump 22 through the connecting frame 25 and the supporting plate 24, so that the delivery pump 22 and the condenser 2 located above can be fixed in a suitable position, completing the operation of condensing the steam into liquid, and re-introducing the condensed liquid into the interior of the working tower body 1 for circulation, and finally completing the separation and purification operation of the o-phenylphenol raw material.
[0020] An air supply pipe 26 is connected between the condenser 2 and the operating tower body 1, and a liquid supply pipe 27 is connected between the reboiler 21 and the operating tower body 1; an air supply pipe 26 is connected between the condenser 2 and the operating tower body 1, and an electric-controlled valve is installed at the connection between the air supply pipe 26 and the fan compartment 11. The air supply pipe 26 is used to introduce the steam that rises to the top of the operating tower body 1 into the condenser 2 for condensation, so that the steam can circulate again after being condensed into liquid. When multiple cycles are completed and the separation of the o-phenylphenol raw material is completed, the air supply pipe 26 will be blocked, so that the o-phenylphenol vapor will be enriched at the top of the operating tower body 1 and wait for collection operation. The liquid supply pipe 27 connected between the reboiler 21 and the operating tower body 1 is used to introduce the liquid that flows to the bottom of the operating tower body 1 into the reboiler 21. An electric valve is also installed inside the liquid supply pipe 27, so that when the separation operation is completed, the screened liquid can be retained in the operating tower body 1 and wait for collection by the staff.
[0021] Several exhaust ports 44 are provided at the top of the air guide ring 41, and an air inlet 45 is provided on one side of the air guide ring 41; the exhaust ports 44 provided at the top of the air guide ring 41 are used to discharge the wind inside the air guide ring 41, so that the wind can move toward the bottom of the centralized collection plate 4, and there are several exhaust ports 44 that are evenly distributed, so that after being guided by the bottom of the centralized collection plate 4, a wind belt is formed at the bottom of the centralized collection plate 4, which assists in guiding the upward moving steam so that the steam can accurately move upward from the center position of the centralized collection plate 4 while avoiding the steam from contacting the bottom of the centralized collection plate 4 and condensing at the bottom of the centralized collection plate 4. The air inlet 45 provided on one side of the air guide ring 41 is used to be connected to the output end of the fan compartment 11, so that the wind can enter the interior of the air guide ring 41 through the air inlet 45, and finally be discharged through the exhaust port 44.
[0022] A support frame 5 is fixedly connected to the bottom end of the operating tower body 1, and a fixing frame 51 is fixedly connected to the bottom end of one of the delivery pumps 22; the support frame 5 fixed at the bottom end of the operating tower body 1 is used to support the operating tower body 1, so that the operating tower body 1 can complete the carrying work of the mixture to be separated and purified, so that the mixture can be separated through multiple cycles of heat exchange inside the operating tower body 1. The bottom end of the delivery pump 22 located below is fixed with a fixing frame 51, and the fixing frame 51 is used to support the delivery pump 22, so that the delivery pump 22 can complete the support of the reboiler 21, and complete the support of the delivery pump 22 and the condenser 2 located above through the reboiler 21, so that steam and liquid can reciprocate and enter the appropriate position inside the operating tower body 1.
[0023] The working principle and use process of the present invention are as follows: when the staff needs to extract the o-phenylphenol raw material in the mixture, the staff can introduce the mixture into the reboiler 21, the reboiler 21 will heat and evaporate the o-phenylphenol mixture, and the steam will be introduced into the delivery pump 22 located below, and the delivery pump 22 will introduce the steam into the working tower body 1. The steam entering the working tower body 1 will move upward due to the high temperature. During the upward movement of the steam, it will pass through the inside of several tower plates 3 through the sieve holes 33, and the substances with higher boiling points in the mixture will be liquefied due to the temperature dropping below the boiling point, and will remain at the top of the tower plate 3. The o-phenylphenol with lower boiling point will be in a vapor state. Continue to move upward until it reaches the top of the operating tower body 1, and then enters the condenser 2. At this time, the steam entering the condenser 2 is o-phenylphenol and some residues. After entering the condenser 2, the steam will be condensed into liquid and enter the delivery pump 22. The liquid entering the delivery pump 22 will enter the operating tower body 1 again through the feed pipe 23 and reach the top of the tower plate 3. When the liquid reaching the top of the tower plate 3 is higher than the overflow weir 32, it will flow downward through the downcomer 31 to the inside of the tower plate 3 located below, until it flows to the bottom of the operating tower body 1 and enters the reboiler 21 for heating in this cycle. After multiple cycles, o-phenylphenol will be enriched in the operating tower body 1. The top of the working tower body 1, other substances will gradually move to the bottom of the working tower body 1, thereby completing the separation and purification operation. When the o-catechol is enriched at the top of the working tower body 1, the o-catechol will contact the top inner wall of the working tower body 1 and produce condensation and other phenomena. At this time, the staff can start the driving motor installed on the top of the working tower body 1 to make the connecting shaft 43 drive the fitting scraper 42 to rotate inside the working tower body 1. The fitting scraper 42 fits with the top inner wall of the working tower body 1, so that the fitting scraper 42 will scrape off the o-catechol raw material attached to the top inner wall of the working tower body 1 during rotation, and then the o-catechol raw material will fall to the top of the centralized collection plate 4 and move under the guidance of the centralized collection plate 4. At this time, The raw materials at the top of the centralized collection plate 4 will be output through the pipeline installed on the outside of the operating tower body 1. The o-catechol vapor will move upward through the center of the centralized collection plate 4 during the vertical upward movement inside the operating tower body 1. A fan bin 11 is installed on the outside of the operating tower body 1. The fan bin 11 will continuously introduce wind into the inside of the air guide ring 41. The wind discharged by the air guide ring 41 through the exhaust port 44 will contact the bottom of the centralized collection plate 4 and form a wind belt at the bottom of the centralized collection plate 4, thereby preventing the o-catechol vapor from contacting the bottom of the centralized collection plate 4, ensuring that the o-catechol vapor can reach the top of the operating tower body 1 and be collected at the top of the centralized collection plate 4, so that the staff can export the o-catechol raw materials.
Claims
1. A distillation tower for producing o-phenylphenol, comprising an operating tower body (1), a blower compartment (11), a condenser (2), a reboiler (21) and two delivery pumps (22), characterized in that: The fan chamber (11) is installed on one side of the operating tower body (1), and the two delivery pumps (22) are respectively connected to the condenser (2) and the reboiler (21) through pipelines, and the two delivery pumps (22) are connected to the operating tower body (1) through a feed pipe (23). A plurality of tower plates (3) are installed inside the operating tower body (1), and the plurality of tower plates (3) are evenly distributed vertically. A downcomer (31) is fixedly connected to one side of the tower plate (3), and the top of the tower plate (3) is fixedly connected to the downcomer (31). There are two overflow weirs (32), a sieve hole (33) is opened inside the tower plate (3), a centralized collection plate (4) is fixedly connected to the inside of the working tower body (1), an air guide ring (41) is fixedly connected to the inside of the working tower body (1), the air guide ring (41) is located below the centralized collection plate (4), a fitting scraper (42) is rotated inside the working tower body (1), the fitting scraper (42) is located above the centralized collection plate (4), and a connecting shaft (43) is fixedly connected to the inside of the fitting scraper (42).
2. A distillation tower for producing o-phenylphenol according to claim 1, characterized in that: A supporting plate (24) is fixedly connected to the bottom end of one of the delivery pumps (22), and a connecting frame (25) is fixedly connected between the supporting plate (24) and the reboiler (21).
3. A distillation tower for producing o-phenylphenol according to claim 1, characterized in that: A gas delivery pipe (26) is connected between the condenser (2) and the operating tower body (1), and a liquid delivery pipe (27) is connected between the reboiler (21) and the operating tower body (1).
4. A distillation tower for producing o-phenylphenol according to claim 1, characterized in that: A plurality of air outlets (44) are provided at the top of the air guide ring (41), and an air inlet (45) is provided at one side of the air guide ring (41).
5. A distillation tower for producing o-phenylphenol according to claim 1, characterized in that: The bottom end of the operating tower body (1) is fixedly connected to a support frame (5), and the bottom end of one of the delivery pumps (22) is fixedly connected to a fixing frame (51).