CN117643736B - Propylene separation and purification system in propylene oxide production - Google Patents
Propylene separation and purification system in propylene oxide production Download PDFInfo
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- CN117643736B CN117643736B CN202311556462.7A CN202311556462A CN117643736B CN 117643736 B CN117643736 B CN 117643736B CN 202311556462 A CN202311556462 A CN 202311556462A CN 117643736 B CN117643736 B CN 117643736B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
- B01D3/22—Fractionating columns in which vapour bubbles through liquid with horizontal sieve plates or grids; Construction of sieve plates or grids
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/04—Purification; Separation; Use of additives by distillation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Epoxy Compounds (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a separation and purification system of propylene in propylene oxide production, which relates to the technical field of propylene oxide production and comprises the following components: the tower body is internally provided with a plurality of tower plates, overflow weirs are arranged on two sides of the upper end surface of each tower plate, through holes are uniformly formed in the area between the overflow weirs on each tower plate, and downcomers are also arranged on each tower plate; the column plate cleaning assembly is arranged at the upper side of the column plate and is used for cleaning sundries on the column plate; the downcomer dredging assembly is arranged in the downcomer, is used for dredging the downcomer, controlling the flow rate of the reflux liquid and pushing the transfer of sundries on the tower plate, and can clean and dredge the impurities on the tower plate and in the downcomer through the matching arrangement of the tower plate cleaning assembly and the downcomer dredging assembly, so that the reflux of the reflux liquid is smooth, the contact mass transfer of the gas phase up-flow and the liquid phase is smooth, and the flooding phenomenon is avoided.
Description
Technical Field
The invention relates to the technical field of propylene oxide production, in particular to a separation and purification system for propylene in propylene oxide production.
Background
Propylene oxide is an important organic synthetic raw material and is widely applied to the fields of chemical industry, medicine, paint and the like. Propylene oxide is mainly prepared by adopting a propylene and hydrogen peroxide epoxidation method, after the reaction of propylene and hydrogen peroxide is finished, propylene and other byproducts in propylene oxide are required to be separated out, so that the purification of propylene oxide is realized, and the product is mainly subjected to rectification separation treatment by adopting rectifying tower equipment in the purification process.
For the plate type rectifying tower adopted by the method, in the actual separation and purification operation process, the phenomenon that a down tube is blocked and reflux liquid cannot flow down is often caused because scrap iron, welding slag, deposition of equipment corrosives in normal production, self-polymers of solution and other impurities exist in the rectifying tower, and the phenomenon that flooding is often caused because the impurities are accumulated for a long time, and air holes are blocked because the impurities are accumulated on a tower plate, so that gas flow is not smooth, and the liquid phase and gas phase balance in the rectifying tower are damaged; in addition, when the tower plate or the downcomer of the existing rectifying tower is blocked, impurities need to be cleaned layer by manually entering the tower body, and the cleaning operation period is long and the operation is difficult. Therefore, there is a need for a separation and purification system for propylene in propylene oxide production to solve the above problems.
Disclosure of Invention
The invention aims to provide a propylene separation and purification system in propylene oxide production, which aims to solve the problems in the prior art in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A separation and purification system for propylene in propylene oxide production, comprising: the tower body is internally provided with a plurality of tower plates, overflow weirs are arranged on two sides of the upper end surface of each tower plate, through holes are uniformly formed in the area between the overflow weirs on each tower plate, and downcomers are also arranged on each tower plate; the column plate cleaning assembly is arranged at the upper side of the column plate and is used for cleaning sundries on the column plate; the downcomer dredging assembly is arranged in the downcomer, is used for dredging the downcomer, controlling the flow rate of reflux liquid and pushing the transfer of sundries on the tower plate; the transverse moving driving assembly is arranged on the tray cleaning assembly and is used for driving the tray cleaning assembly to transversely move through the lifting movement of the downcomer dredging assembly; and the lifting driving assembly is arranged on the tower body and is used for driving the downcomer dredging assembly to move up and down.
Preferably, the tray cleaning assembly comprises a bracket, a mounting plate and a transverse moving plate, wherein the bracket is mounted on the tray, the mounting plate is connected to the upper end of the bracket, a first chute and a second chute are arranged on the side surface of the mounting plate, the first chute is a horizontal straight line chute, the middle part of the second chute is a horizontal straight line chute, the two ends of the second chute are upward inclined chutes, the transverse moving plate is slidably connected to the first chute, a lifting block is vertically slidably connected to the transverse moving plate, the upper end of the lifting block is connected with a sliding rod, the two ends of the sliding rod are slidably connected to the second chute, the lower end of the lifting block is connected with a pushing plate, a reinforcing plate is connected to the mounting plate, and a tension spring is connected between the reinforcing plate and the transverse moving plate on one side of the downcomer dredging assembly.
Preferably, the downcomer dredging assembly comprises a dredging frame, a dredging impeller and a wire reel, wherein the dredging frame is vertically connected in the downcomer in a sliding mode, the dredging impeller is rotationally connected to the lower end of the dredging frame, the wire reel is connected to the dredging impeller through a key, a first pull rope is wound on the wire reel, the other end of the first pull rope is connected to the reinforcing plate, and a torsion spring for driving the dredging impeller to reset is arranged between the dredging impeller rotating shaft and the dredging frame.
Preferably, the transverse moving driving assembly comprises a fixed pulley and a second pull rope, the fixed pulley is arranged on the reinforcing plate close to one side of the downcomer dredging assembly, one end of the second pull rope is connected to the transverse moving plate, and the other end of the second pull rope is connected to the dredging frame through the fixed pulley.
Preferably, the lifting driving assembly comprises lifting rods, lifting frames and air cylinders, wherein the lifting rods penetrate through all tower plates in a sliding mode, the lifting rods are fixedly connected with all dredging frames, the lifting frames are connected to the upper ends of the lifting rods, and the air cylinders used for driving the lifting frames to move up and down are mounted at the top of the tower body.
Preferably, the push plate comprises a middle plate and extension plates connected with two sides of the middle plate, the extension plates are connected in sliding grooves on two sides of the middle plate in a sliding mode, and springs are arranged between the 2 extension plates.
Preferably, the overflow weir is provided with an inclined plane which is convenient for sundries to pass through.
Preferably, the middle part of the tower body is provided with a feed inlet, the lower side of the tower body is provided with a discharge outlet and an air inlet, and the upper side of the tower body is provided with an air outlet and a reflux outlet.
Compared with the prior art, the invention has the beneficial effects that:
1. The invention can clean and dredge the impurity on the tower plate and in the down-flow pipe through the matching arrangement of the tower plate cleaning component and the down-flow pipe dredging component, ensures the smooth reflux of the reflux liquid and the smooth contact mass transfer between the gas phase up-flow and the liquid phase, and avoids flooding phenomenon.
2. According to the invention, through the cooperation of the tray cleaning assembly and the downcomer dredging assembly, the cleaned impurities can be pushed to cross the overflow weir and gradually move downwards through the tray and the downcomer until the impurities move to the bottom of the tower body, so that the impurities can be conveniently cleaned out of the tower body.
3. According to the invention, the lifting dredging frequency of the dredging frame and the rotating speed of the dredging impeller can be controlled by controlling the movement frequency of the lifting driving assembly, and the reflux speed of reflux liquid can be actively controlled by the arrangement, so that compared with a traditional rectifying tower, the balance control of gas phase and liquid phase in the tower body is more convenient.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a schematic cross-sectional view of the tower of the present invention.
FIG. 3 is a schematic view of the structure of the removal column of the present invention.
FIG. 4 is a schematic view of the mounting location between two trays of the present invention.
FIG. 5 is a schematic view of the structure of the tray cleaning assembly and downcomer dredging assembly of the present invention.
FIG. 6 is a schematic view of the bottom structure of the tray cleaning assembly of the present invention.
Fig. 7 is a schematic view of a partial enlarged structure at a in fig. 5 according to the present invention.
In the figure: 1. a tower body; 2. a tray; 3. an overflow weir; 4. a downcomer; 5. a tray cleaning assembly; 51. a bracket; 52. a mounting plate; 53. a first chute; 54. a second chute; 55. a transverse moving plate; 56. a lifting block; 57. a slide bar; 58. a push plate; 59. a reinforcing plate; 510. a tension spring; 6. a downcomer dredging assembly; 61. a dredging frame; 62. dredging the impeller; 63. a wire spool; 64. a first pull rope; 7. a traversing drive assembly; 71. a fixed pulley; 72. a second pull rope; 8. a lifting driving assembly; 81. a lifting rod; 82. a lifting frame; 83. a cylinder; 9. a feed inlet; 10. a discharge port; 11. an air inlet; 12. an air outlet; 13. and a return port.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1-7, the present invention provides a technical solution:
A separation and purification system for propylene in propylene oxide production, comprising: the tower body 1 is internally provided with a plurality of tower plates 2, overflow weirs 3 are arranged on two sides of the upper end surface of each tower plate 2, through holes are uniformly formed in the region between the overflow weirs 3 on each tower plate 2 and used for enabling gas to flow upwards, downcomers 4 are also arranged on each tower plate 2, the downcomers 4 are arranged at the edge positions of the corresponding tower plates 2, and the downcomers 4 are positioned on one side of the overflow weirs 3; the overflow weir 3 is provided with an inclined plane which is convenient for sundries to pass through, and the inclined plane is matched with the push plate 58 to enable the sundries to pass over the overflow weir 3; the middle part of the tower body 1 is provided with a feed inlet 9, the lower side of the tower body 1 is provided with a discharge outlet 10 and an air inlet 11, and the upper side of the tower body 1 is provided with an air outlet 12 and a reflux outlet 13.
The column plate cleaning assembly 5 is arranged at the upper side position of the column plate 2 and is used for cleaning sundries on the column plate 2; the tray cleaning assembly 5 comprises a support 51, a mounting plate 52 and a transverse moving plate 55, the support 51 is mounted on the tray 2, the mounting plate 52 is connected to the upper end of the support 51, a first chute 53 and a second chute 54 are arranged on the side face of the mounting plate 52, the first chute 53 is a horizontal straight chute, the middle of the second chute 54 is a horizontal straight chute, two ends of the second chute are upward inclined chutes, and when the push plate 58 moves towards the two ends of the mounting plate 52 through the arrangement of the chute, the push plate 58 can move to the upper side of the overflow weir 3 so as to facilitate sundries to be pushed to pass through the overflow weir 3.
The transverse moving plate 55 is slidably connected to the first chute 53, the transverse moving plate 55 is vertically slidably connected with a lifting block 56, the upper end of the lifting block 56 is connected with a sliding rod 57, two ends of the sliding rod 57 are slidably connected to the second chute 54, the lower end of the lifting block 56 is connected with a push plate 58, the mounting plate 52 is connected with a reinforcing plate 59, a tension spring 510 is connected between the reinforcing plate 59 far away from one side of the downcomer dredging assembly 6 and the transverse moving plate 55, and the tension spring 510 is used for pulling the transverse moving plate 55 to enable the transverse moving plate 55 to reset and slide.
The push plate 58 comprises a middle plate and extension plates connected with the two sides of the middle plate, the extension plates are connected in sliding grooves on the two sides of the middle plate in a sliding manner, and springs are arranged between the 2 extension plates; through the setting of this structure can make extension board edge laminating all the time to the inner wall of tower body 1 on, the extension board can remove along with the intermediate lamella and carry out concertina movement to can carry out complete scraping clearance to the region at column plate 2 middle part.
A downcomer dredging assembly 6 mounted within the downcomer 4, said downcomer dredging assembly 6 being for dredging the downcomer 4 and for controlling the flow rate of the reflux liquid and for pushing the transfer of impurities on the tray 2; the downcomer dredging assembly 6 comprises a dredging frame 61, a dredging impeller 62 and a wire spool 63, wherein the dredging frame 61 is vertically and slidingly connected in the downcomer 4, the dredging impeller 62 is rotationally connected to the lower end of the dredging frame 61, a wire spool 63 is connected to a rotating shaft of the dredging impeller 62 in a key manner, a first pull rope 64 is wound on the wire spool 63, the other end of the first pull rope 64 is connected to the reinforcing plate 59, and a torsion spring for driving the dredging impeller 62 to reset and rotate is arranged between the rotating shaft of the dredging impeller 62 and the dredging frame 61; the downcomer dredging assembly 6 dredges the downcomer 4 by combining the up-and-down movement of the dredging frame 61 and the rotation of the dredging impeller 62, the rotation of the dredging impeller 62 can control the flow rate of the reflux liquid, and sundries on the next tower plate 2 can be overturned over the overflow weir 3 in the process of the downward movement of the dredging impeller 62.
A traverse driving assembly 7 mounted on the tray cleaning assembly 5, the traverse driving assembly 7 being configured to drive the tray cleaning assembly 5 to move laterally by the lifting motion of the downcomer dredging assembly 6; the transverse moving driving assembly 7 comprises a fixed pulley 71 and a second pull rope 72, the fixed pulley 71 is arranged on the reinforcing plate 59 close to one side of the downcomer dredging assembly 6, one end of the second pull rope 72 is connected to the transverse moving plate 55, and the other end of the second pull rope 72 is connected to the dredging frame 61 through the fixed pulley 71; the synchronous motion of the tray cleaning assembly 5 and the downcomer dredging assembly 6 can be realized through the arrangement of the transverse moving driving assembly 7, so that the tray cleaning assembly and the downcomer dredging assembly can work cooperatively.
The lifting driving assembly 8 is arranged on the tower body 1, and the lifting driving assembly 8 is used for driving the downcomer dredging assembly 6 to move in a lifting manner; the lifting driving assembly 8 comprises lifting rods 81, lifting frames 82 and air cylinders 83, wherein the lifting rods 81 penetrate through and are connected to the tower plates 2 in a sliding manner, the lifting rods 81 are fixedly connected with the dredging frames 61, the lifting frames 82 are connected to the upper ends of the lifting rods 81, and the air cylinders 83 for driving the lifting frames 82 to move in a lifting manner are arranged at the top of the tower body 1; the lifting driving assembly 8 can drive all the tray cleaning assemblies 5 and the downcomer dredging assemblies 6 to synchronously work, and the driving mode is simple and efficient.
The working process of the invention is as follows:
Propylene oxide liquid to be purified is fed into the tower body 1 through the feed inlet 9, a reboiler is connected to the discharge port 10 and the air inlet 11, a heat exchanger is connected to the air outlet 12 and the reflux port 13, saturated liquid flows from top to bottom, gas flows from bottom to top, and the saturated liquid contacts with the liquid through the through holes on the tower plate 2 for mass transfer, so that the propylene oxide purification operation is realized.
In the purification process, the air cylinder 83 drives the lifting frame 82 and the lifting rod 81 to reciprocate up and down, when the lifting rod 81 drives the dredging frame 61 to slide downwards, the dredging frame 61 drives the dredging impeller 62 to move downwards to dredge the downcomer 4, the first pull rope 64 is pulled to drive the dredging impeller 62 to rotate, the rotation of the dredging impeller 62 further promotes the backflow of reflux liquid, and in the process that the dredging impeller 62 rotates and moves downwards, the dredging impeller 62 turns sundries on the tray 2 below the dredging impeller over the overflow weirs 3, so that the sundries move to an area between the two overflow weirs 3, and the cleaning of the next tray cleaning assembly 5 is facilitated.
In the downward movement process of the dredging frame 61, the dredging frame 61 drives the transverse moving plate 55 to slide through the second pull rope 72, under the cooperation of the sliding rod 57 and the second sliding groove 54, the lifting block 56 gradually moves downwards, the lifting block 56 drives the push plate 58 to be attached to the surface of the tower plate 2, the transverse moving plate 55 continuously moves horizontally to scrape and clean impurities on the tower plate 2, and when the push plate 58 contacts with the bottom of the overflow weir 3 on one side of the downcomer 4, the push plate 58 gradually moves upwards to scrape the impurities over the overflow weir 3, so that the impurities enter the downcomer 4 to gradually move downwards until the impurities reach the bottom of the tower body 1, and the impurities are conveniently cleaned out of the tower body 1.
When the dredging frame 61 slides upwards, the dredging impeller 62 resets and rotates under the action of the torsion spring, the first stay cord 64 is reeled on the wire reel 63 again, the transverse moving plate 55 resets and slides under the action of the tension spring 510 so as to facilitate the next dredging and cleaning operation, the rotation speed of the dredging impeller 62 can be controlled by controlling the reciprocating frequency of the air cylinder 83, the conveying speed of the dredging impeller 62 to the reflux liquid is controlled, the downflow speed of the reflux liquid can be actively controlled, and the balance control of the gas phase and the liquid phase in the auxiliary tower body 1 is facilitated.
Although 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 alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A separation and purification system for propylene in propylene oxide production, comprising:
The tower comprises a tower body (1), wherein a plurality of tower plates (2) are arranged in the tower body, overflow weirs (3) are arranged on two sides of the upper end surface of each tower plate (2), through holes are uniformly formed in the area between the overflow weirs (3) on each tower plate (2), and downcomers (4) are further arranged on each tower plate (2);
The column plate cleaning assembly (5) is arranged at the upper side of the column plate (2) and is used for cleaning sundries on the column plate (2); the column plate cleaning assembly (5) comprises a support (51), a mounting plate (52) and a transverse moving plate (55), wherein the support (51) is mounted on the column plate (2), the mounting plate (52) is connected to the upper end of the support (51), a first chute (53) and a second chute (54) are arranged on the side face of the mounting plate (52), the first chute (53) is a horizontal straight chute, the middle part of the second chute (54) is a horizontal straight chute, the two ends of the second chute are inclined upward, the transverse moving plate (55) is slidably connected to the first chute (53), a lifting block (56) is vertically slidably connected to the transverse moving plate (55), the upper end of the lifting block (56) is connected with a sliding rod (57), the two ends of the sliding rod (57) are slidably connected to the second chute (54), the lower end of the lifting block (56) is connected with a push plate (58), and a reinforcing plate (59) is connected to the mounting plate (52), and a tension spring (510) is connected between the reinforcing plate (59) far away from one side of the dredging assembly (6) and the downcomer (55).
A downcomer dredging assembly (6) which is arranged in the downcomer (4), wherein the downcomer dredging assembly (6) is used for dredging the downcomer (4), controlling the flow rate of reflux liquid and pushing the transfer of sundries on the tower plate (2); the downcomer dredging assembly (6) comprises a dredging frame (61), a dredging impeller (62) and a wire spool (63), wherein the dredging frame (61) is vertically and slidably connected into the downcomer (4), the dredging impeller (62) is rotationally connected to the lower end of the dredging frame (61), the wire spool (63) is connected to a rotating shaft of the dredging impeller (62) in a key manner, a first pull rope (64) is wound on the wire spool (63), the other end of the first pull rope (64) is connected to a reinforcing plate (59), and a torsion spring for driving the dredging impeller (62) to reset and rotate is arranged between the rotating shaft of the dredging impeller (62) and the dredging frame (61);
The transverse moving driving assembly (7) is arranged on the tray cleaning assembly (5), and the transverse moving driving assembly (7) is used for driving the tray cleaning assembly (5) to transversely move through the lifting movement of the downcomer dredging assembly (6); the transverse moving driving assembly (7) comprises a fixed pulley (71) and a second pull rope (72), the fixed pulley (71) is arranged on a reinforcing plate (59) close to one side of the downcomer dredging assembly (6), one end of the second pull rope (72) is connected to the transverse moving plate (55), and the other end of the second pull rope (72) is connected to the dredging frame (61) through the fixed pulley (71);
The lifting driving assembly (8) is arranged on the tower body (1), and the lifting driving assembly (8) is used for driving the downcomer dredging assembly (6) to move up and down; lifting drive subassembly (8) are including lifter (81), crane (82) and cylinder (83), lifter (81) run through sliding connection on each column plate (2), and fixed connection between lifter (81) and each mediation frame (61), the upper end of lifter (81) is connected with crane (82), cylinder (83) that are used for driving crane (82) elevating movement are installed at the top of tower body (1).
2. The system for separating and purifying propylene in propylene oxide production according to claim 1, wherein: the push plate (58) comprises a middle plate and extension plates connected with the two sides of the middle plate, the extension plates are connected in sliding grooves on the two sides of the middle plate in a sliding mode, and springs are arranged between the 2 extension plates.
3. The system for separating and purifying propylene in propylene oxide production according to claim 1, wherein: the overflow weir (3) is provided with an inclined plane which is convenient for sundries to pass through.
4. The system for separating and purifying propylene in propylene oxide production according to claim 1, wherein: the middle part of the tower body (1) is provided with a feed inlet (9), the lower side of the tower body (1) is provided with a discharge outlet (10) and an air inlet (11), and the upper side of the tower body (1) is provided with an air outlet (12) and a reflux outlet (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311556462.7A CN117643736B (en) | 2023-11-21 | 2023-11-21 | Propylene separation and purification system in propylene oxide production |
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| CN202311556462.7A CN117643736B (en) | 2023-11-21 | 2023-11-21 | Propylene separation and purification system in propylene oxide production |
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| CN118615735A (en) * | 2024-08-13 | 2024-09-10 | 泉州宇翔石化机械制造有限公司 | A distillation tower for preventing liquid accumulation on sieve plate |
| CN118767824B (en) * | 2024-09-10 | 2024-12-03 | 洛阳恒玖生物能源有限公司 | Abandoned grease hydrogenation reactor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113350820A (en) * | 2021-05-18 | 2021-09-07 | 黄强 | Plate type fractionating tower |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191699Y (en) * | 1994-06-01 | 1995-03-15 | 天津大学 | Double floating ladder-shaped float valve tray |
| JP3903510B2 (en) * | 1996-06-27 | 2007-04-11 | 株式会社石垣 | Moving filter filter |
| US20040104108A1 (en) * | 2002-12-03 | 2004-06-03 | Mason Robert Michael | High capacity purification of thermally unstable compounds |
| DE102012204436A1 (en) * | 2012-03-20 | 2012-10-04 | Basf Se | Thermal separation between at least a gas ascending- and a liquid containing at least a (meth)acrylic-monomer descending respectively in separating column, accomplished in a separation effective installation containing separating columns |
| US20140374331A1 (en) * | 2013-03-12 | 2014-12-25 | Robert A. Anderson | Filter system |
| CN210078879U (en) * | 2019-02-01 | 2020-02-18 | 山东华安新材料有限公司 | Simple rectifying device for separating substances with different boiling points |
| CN111701376A (en) * | 2020-06-24 | 2020-09-25 | 湖州南丰机械制造有限公司 | Dust treatment system of foundry |
| CN213221005U (en) * | 2020-08-12 | 2021-05-18 | 江苏华尔化工有限公司 | Chemical rectifying tower capable of improving rectifying quality |
| CN213790033U (en) * | 2020-11-03 | 2021-07-27 | 衡阳市盛亚化工科技有限公司 | DD mixed agent rectifying tower |
| CN215822388U (en) * | 2021-08-17 | 2022-02-15 | 辽宁远富华控股集团有限公司 | Petrochemical prevents atmospheric tower structure of jam |
| CN216395300U (en) * | 2021-09-01 | 2022-04-29 | 内蒙古东立光伏电子有限公司 | Energy-saving consumption-reducing rough separation tower |
| CN215844502U (en) * | 2021-09-01 | 2022-02-18 | 中州水务控股有限公司 | Thin grid cleaning device |
| CN113827998B (en) * | 2021-09-13 | 2022-12-20 | 王廷兰 | Refining equipment and refining process for propylene oxide |
| CN113908578A (en) * | 2021-09-13 | 2022-01-11 | 黄强 | Plate type fractionating tower |
| CN114146440A (en) * | 2021-11-18 | 2022-03-08 | 付雪玲 | Low-energy-consumption energy-saving chemical light-component removing tower |
| CN114225540A (en) * | 2021-12-06 | 2022-03-25 | 江苏中海华核环保有限公司 | Bubble cap tower for separating nuclear waste |
| CN114606105A (en) * | 2022-03-25 | 2022-06-10 | 杨兴元 | Straw biogas fermentation and fertile integration equipment of system |
| CN115814445A (en) * | 2022-12-05 | 2023-03-21 | 江苏嘉宏新材料有限公司 | Device and method for purifying reflux tank of rectifying tower |
-
2023
- 2023-11-21 CN CN202311556462.7A patent/CN117643736B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113350820A (en) * | 2021-05-18 | 2021-09-07 | 黄强 | Plate type fractionating tower |
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