OCU device for C4 separation

Abstract

The utility model relates to the technical field of mixed C4 treatment, and discloses an OCU device for C4 separation, which comprises a bottom plate, a heating plate fixedly connected to the inner wall of the left side of the top end of the bottom plate, a distillation box installed in the middle of the top end of the heating plate, a purification box fixedly connected to the right side of the top end of the distillation box, and an exhaust assembly installed on the inner wall of the purification box. A settling tank is fixedly connected to the middle of the top end of the distillation box, a motor is mounted in the middle of the top end of the settling tank, a driving rod is mounted at the driving end of the motor, and a first filter screen is fixedly connected to the upper side of the inner wall of the settling tank. According to the sedimentation tank disclosed by the utility model, the driving rod and the dosing box are arranged, so that a sedimentation agent can enter the cavity through the dosing port under the matching of the motor, the driving rod, the dosing box, the first magnet and the second magnet, and then is uniformly sprayed into the sedimentation tank through the medicine spraying holes in the bottom end of the dosing box, and the sedimentation efficiency is improved by matching with the stirring rod; the pretreatment of the mixed C4 to remove impurities is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of mixed carbon four treatment, in particular to an OCU device for C4 separation. Background Art

[0002] Mixed C4 is mainly composed of 1-butene, cis-2-butene, trans-2-butene, isobutylene, and n-butane, and also contains DME, acetaldehyde, methanol and other impurities. The product produced by the separation of olefin C4 requires the use of olefin C4 with higher purity, so a device for pre-treatment and separation of mixed C4 is needed.

[0003] At present, the pretreatment of mixed C4 on the market is generally just a simple filtration and precipitation. However, due to their different physical and chemical properties, it is difficult to completely remove multiple impurities such as dimethyl ether, acetaldehyde and methanol at the same time, and the sedimentation efficiency is not high. Summary of the invention

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an OCU device for C4 separation, aiming to improve the problem that the impurities in the mixed C4 have different physical and chemical properties and are difficult to be completely removed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an OCU device for C4 separation, comprising: a bottom plate, a heating plate is fixedly connected to the inner wall on the left side of the top of the bottom plate, a distillation box is installed in the middle of the top of the heating plate, a purification box is fixedly connected to the right side of the top of the distillation box, an exhaust assembly is installed on the inner wall of the purification box, a precipitation tank is fixedly connected to the middle of the top of the distillation box, a motor is installed in the middle of the top of the precipitation tank, a driving rod is installed at the driving end of the motor, a first filter is fixedly connected to the upper side of the inner wall of the precipitation tank, the bottom end of the driving rod passes through the first filter and is rotatably connected to the bottom end of the inner wall of the precipitation tank, a spraying assembly is installed on one side of the outer wall of the driving rod near the bottom end of the first filter, a plurality of stirring rods are fixedly connected on one side of the outer wall of the driving rod near the bottom end of the precipitation tank, a feed pipe is passed through the left side of the top of the precipitation tank, a connecting pipe is passed through the right side of the bottom end of the precipitation tank, and a hydrogenation reaction box is fixedly connected to the right side of the top of the bottom plate.

[0006] As a further description of the above technical solution:

[0007] The medicine spraying assembly includes a medicine adding box, one end of the inner side of the medicine adding box is fixedly connected to the outer wall of the driving rod near the lower side of the first filter screen, a cavity is opened on the upper side of the inner wall of the driving rod, a medicine adding port is opened on the right side of the outer wall of the cavity near the top of the cavity, a plurality of medicine spraying holes are opened at the bottom end of the inner wall of the medicine adding box, a first magnet is fixedly connected to the top of the inner wall of the medicine adding box near the side of the driving rod, a second magnet is slidably connected to the top of the inner wall of the medicine adding box near the outer side of the connecting pipe, and the bottom end of the second magnet is tightly attached to the bottom surface of the inner wall of the medicine adding box.

[0008] As a further description of the above technical solution:

[0009] The bottom end of the connecting pipe passes through the inner wall of the distillation box, an electromagnetic valve is installed on the inner wall of the connecting pipe, a second filter screen is fixedly connected to the bottom end of the inner wall of the sedimentation tank corresponding to the upper side of the connecting pipe, and a slag discharge pipe is passed through the outer wall of the left end of the sedimentation tank corresponding to the upper side of the second filter screen.

[0010] As a further description of the above technical solution:

[0011] The exhaust component includes an exhaust fan, a through hole is opened in the middle of the right side of the top of the distillation box, a through hole is opened on the upper side of the bottom end of the inner wall of the purification box corresponding to the through hole, the bottom end of the exhaust fan is fixedly connected to the outside of the through hole corresponding to the bottom end of the inner wall of the purification box, the inner wall of the through hole is fixedly connected to an exhaust hopper, and the inner wall of the bottom end of the exhaust hopper is fixedly connected to a partition net.

[0012] As a further description of the above technical solution:

[0013] An activated carbon adsorption net is fixedly connected to the upper side of the inner wall of the purification box, and an exhaust pipe is penetrated in the middle of the top of the purification box.

[0014] As a further description of the above technical solution:

[0015] A feed pipe is provided at the bottom of the right end of the distillation box, and the right end of the feed pipe passes through the inner wall of the hydrogenation reaction box. A one-way valve is installed at the top of the inner wall of the feed pipe. A hydrogenation pipe is provided at the top of the front end outer wall of the hydrogenation reaction box, and a discharge port is provided at the bottom of the rear end outer wall of the hydrogenation reaction box.

[0016] As a further description of the above technical solution:

[0017] The bottom end of the motor is fixedly connected with a support plate, the front and rear sides of the bottom end of the support plate are fixedly connected to the top of the sedimentation tank, and the upper side of the outer wall of the driving rod is rotatably connected to the inner wall of the support plate.

[0018] As a further description of the above technical solution:

[0019] The top of the medicine adding box is fixedly connected with a triangular scraper, and the top of the triangular scraper is tightly attached to the bottom surface of the first filter screen.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, a driving rod and a dosing box are provided so that the sedimentation agent can enter the cavity through the dosing port under the cooperation of the motor, the driving rod, the dosing box, the first magnet and the second magnet, and then be evenly sprayed into the sedimentation tank through the spraying hole at the bottom of the dosing box. The use of the stirring rod improves the sedimentation efficiency and accelerates the pretreatment of the mixed carbon four to remove impurities.

[0022] In the utility model, a distillation box and a precipitation tank are provided, so that impurities such as dimethyl ether, acetaldehyde, methanol, etc. in the mixed C4 can be removed cleanly by the combined use of the precipitation tank and the distillation box, so that the olefin C4 can stably enter the hydrogenation reaction box after the impurities are pre-treated to react and produce products such as n-butene, thereby completing the separation, which can improve the purity of the olefin C4, improve the product quality, reduce the risk of catalyst poisoning, and increase the utilization value and sustainability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of an OCU device for C4 separation proposed by the utility model;

[0024] Figure 2 A half-section diagram of a sedimentation tank of an OCU device for C4 separation proposed in the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of a drug adding box of an OCU device for C4 separation proposed by the utility model;

[0026] Figure 4 This is a half-section view of a driving rod of an OCU device for C4 separation proposed by the utility model.

[0027] Legend:

[0028] 1. Bottom plate; 2. Sedimentation tank; 3. Heating plate; 4. Distillation box; 5. Slag discharge pipe; 6. Feed pipe; 7. Motor; 8. Support plate; 9. Exhaust pipe; 10. Purification box; 11. Hydrogenation reaction box; 12. Hydrogenation pipe; 13. First filter screen; 14. Dosing box; 15. Stirring rod; 16. Second filter screen; 17. Connecting pipe; 18. Vacuum hopper; 19. Feed pipe; 20. One-way valve; 21. Exhaust fan; 22. Activated carbon adsorption net; 23. Triangular scraper; 24. Driving rod; 25. Dosing port; 26. Cavity; 27. First magnet; 28. Second magnet; 29. ​​Sprinkling hole. Implementation

[0029] The following will refer to the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.

[0031] Reference Figure 1-4 , the utility model provides an embodiment: an OCU device for C4 separation, comprising: a bottom plate 1, a heating plate 3 is fixedly connected to the inner wall on the left side of the top of the bottom plate 1, a distillation box 4 is installed in the middle of the top of the heating plate 3, a purification box 10 is fixedly connected to the right side of the top of the distillation box 4, an exhaust assembly is installed on the inner wall of the purification box 10, a precipitation tank 2 is fixedly connected to the middle of the top of the distillation box 4, a motor 7 is installed in the middle of the top of the precipitation tank 2, a driving rod 24 is installed at the driving end of the motor 7, a first filter screen 13 is fixedly connected to the upper side of the inner wall of the precipitation tank 2, the bottom end of the driving rod 24 penetrates the first filter screen 13 and is rotatably connected to the bottom end of the inner wall of the precipitation tank 2, a spraying assembly is installed on one side of the outer wall of the driving rod 24 near the bottom end of the first filter screen 13 on four sides, a plurality of stirring rods 15 are fixedly connected to one side of the outer wall of the driving rod 24 near the bottom end of the precipitation tank 2 on four sides, a feed pipe 6 is penetrated on the left side of the top of the precipitation tank 2, a connecting pipe 17 is penetrated on the right side of the bottom end of the precipitation tank 2, and a hydrogenation reaction box 11 is fixedly connected to the right side of the top of the bottom plate 1.

[0032] Specifically, the heating plate 3 uses electric heating to heat the inside of the distillation box 4. The distillation box 4 is used to remove impurities in the mixed carbon four that have not been removed by precipitation. The purification box 10 can absorb the impurity gas heated and vaporized in the distillation box 4 to purify and remove harmful substances. The exhaust component is used to collect the impurity gas inside the distillation box 4 into the purification box 10. The motor 7 drives the driving rod 24 to rotate so that the stirring rod 15 stirs the liquid at the bottom of the inner wall of the precipitation tank 2. The feed pipe 6 is used to add the mixed carbon four into the precipitation tank 2. The connecting pipe 17 is used to introduce the mixed carbon four after sedimentation into the distillation box 4. The hydrogenation reaction box 11 is used to react the pretreated olefin carbon four with hydrogen to produce the desired products such as n-butene.

[0033] The medicine spraying assembly includes a medicine adding box 14, one end of the inner side of the medicine adding box 14 is fixedly connected to the outer wall of the driving rod 24 near the lower side of the first filter screen 13, a cavity 26 is opened on the upper side of the inner wall of the driving rod 24, and a medicine adding port 25 is opened on the right side of the outer wall of the cavity 26 near the top of the cavity 26, and a plurality of medicine spraying holes 29 are opened at the bottom end of the inner wall of the medicine adding box 14. A first magnet 27 is fixedly connected to the top of the inner wall of the medicine adding box 14 near the side of the driving rod 24, and a second magnet 28 is slidably connected to the top of the inner wall of the medicine adding box 14 near the outer side of the connecting pipe 17, and the bottom end of the second magnet 28 is tightly attached to the bottom end surface of the inner wall of the medicine adding box 14, and a triangular scraper 23 is fixedly connected to the top of the medicine adding box 14, and the top of the triangular scraper 23 is tightly attached to the bottom end surface of the first filter screen 13.

[0034] Specifically, as the driving rod 24 rotates, the second magnet 28 on the inner wall of the dosing box 14 will slide outward on the inner wall of the dosing box 14 under the action of the centrifugal force of the rotation, so that the precipitated medicine entering the cavity 26 enters the bottom of the inner wall of the dosing box 14 under the action of the centrifugal force, and then is evenly sprinkled to the bottom of the inner wall of the sedimentation tank 2 through the medicine sprinkling hole 29. With the stirring action of the stirring rod 15, the precipitated medicine can be evenly mixed with the mixed carbon four and then quickly precipitate at the bottom of the inner wall of the sedimentation tank 2. The triangular scraper 23 can clean the bottom of the first filter screen 13 to prevent some solid impurities from being stuck in the mesh after a long filtration time. An impurity cleaning port is provided on the rear side of the outer wall of the sedimentation tank 2 corresponding to the top of the first filter screen 13 to remove the filtered impurities.

[0035] The exhaust component includes an exhaust fan 21, a through hole is opened in the middle part of the right side of the top of the distillation box 4, a through hole is opened on the upper side of the bottom end of the inner wall of the purification box 10 corresponding to the through hole, the bottom end of the exhaust fan 21 is fixedly connected to the outer side of the through hole corresponding to the bottom end of the inner wall of the purification box 10, an exhaust hopper 18 is fixedly connected to the inner wall of the through hole, a partition net is fixedly connected to the inner wall of the bottom end of the exhaust hopper 18, an activated carbon adsorption net 22 is fixedly connected to the upper side of the inner wall of the purification box 10, and an exhaust pipe 9 is passed through the middle part of the top end of the purification box 10.

[0036] Specifically, the generated gas can be drawn into the purification box 10 through the exhaust hopper 18 under the action of the exhaust fan 21, and then the gas passes through the activated carbon adsorption net 22 to absorb harmful substances and is discharged through the exhaust pipe 9. After the mixed carbon four is pre-treated in the sedimentation tank 2 and the distillation box 4, the impurities are completely removed.

[0037] The bottom end of the connecting pipe 17 penetrates the inner wall of the distillation box 4, and a solenoid valve is installed on the inner wall of the connecting pipe 17. The second filter screen 16 is fixedly connected to the upper side of the bottom end of the inner wall of the precipitation tank 2 corresponding to the connecting pipe 17. A slag discharge pipe 5 is penetrated on the upper side of the left end outer wall of the precipitation tank 2 corresponding to the second filter screen 16. A feed pipe 19 is penetrated at the bottom of the right end of the distillation box 4. The right end of the feed pipe 19 penetrates the inner wall of the hydrogenation reaction box 11. A one-way valve 20 is installed on the top of the inner wall of the feed pipe 19. A hydrogenation pipe 12 is penetrated at the top of the outer wall of the front end of the hydrogenation reaction box 11. A discharge port is opened at the bottom of the outer wall of the rear end of the hydrogenation reaction box 11. The bottom end of the motor 7 is fixedly connected to the support plate 8. The front and rear sides of the bottom end of the support plate 8 are fixedly connected to the top of the precipitation tank 2. The upper side of the outer wall of the driving rod 24 is rotatably connected to the inner wall of the support plate 8.

[0038] Specifically, the settled solid impurities will remain at the bottom of the inner wall of the sedimentation tank 2 under the action of the second filter screen 16. After processing, they can be discharged by opening the slag discharge pipe 5. The olefin carbon four liquid can be passed into the hydrogenation reaction box 11 along the feed pipe 19 by opening the one-way valve 20, and then hydrogen, catalyst and other substances are added to the hydrogenation reaction box 11 through the hydrogenation pipe 12. The support plate 8 is used to support the motor 7.

[0039] Working principle: first, the mixed C4 is passed into the sedimentation tank 2 through the feed pipe 6, and then the large solid impurities of the mixed C4 will be filtered out by the first filter screen 13, and then the remaining liquid enters the lower side of the inner wall of the sedimentation tank 2, and then the sedimentation drug is added to the cavity 26 of the inner wall of the driving rod 24 through the dosing port 25, and then the motor 7 is started to drive the driving rod 24 to rotate so that the stirring rod 15 stirs the liquid at the bottom of the inner wall of the sedimentation tank 2. At the same time, as the driving rod 24 rotates, the second magnet 28 on the inner wall of the dosing box 14 will slide outward on the inner wall of the dosing box 14 under the action of the centrifugal force of the rotation, so that the sedimentation drug entering the cavity 26 enters the bottom of the inner wall of the dosing box 14 under the action of the centrifugal force, and then is evenly sprinkled to the bottom of the inner wall of the sedimentation tank 2 through the spraying hole 29. With the stirring effect of the stirring rod 15, the sedimentation drug can be evenly mixed with the mixed C4 and then quickly precipitate at the bottom of the inner wall of the sedimentation tank 2. After the sedimentation is completed, the solenoid valve inside the connecting pipe 17 will open, and the olefin C4 liquid will enter through the connecting pipe 17 Inside the distillation box 4, the settled solid impurities will remain at the bottom of the inner wall of the precipitation tank 2 under the action of the second filter screen 16. After processing, they can be discharged by opening the slag discharge pipe 5. After entering the distillation box 4, the olefin carbon four liquid inside the distillation box 4 is heated by the heating plate 3, so that the impurity liquids with different boiling points are vaporized, and the olefin liquid with higher purity remains at the bottom of the inner wall of the distillation box 4. The generated gas can be drawn into the purification box 10 through the suction hopper 18 under the action of the exhaust fan 21, and then the gas passes through the activated carbon adsorption net 22 to absorb harmful substances and is discharged through the exhaust pipe 9. After the mixed carbon four pretreated by the precipitation tank 2 and the distillation box 4, the impurities are completely removed to form a higher concentration of olefin carbon four, and the olefin carbon four liquid is passed into the hydrogenation reaction box 11 along the feed pipe 19 by opening the one-way valve 20, and then hydrogen and catalysts and other substances are added to the hydrogenation reaction box 11 through the hydrogenation pipe 12. After the reaction is complete, products such as n-butene are obtained and discharged through the rear discharge port of the hydrogenation reaction box 11.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An OCU device for C4 separation, characterized in that: include: A bottom plate (1), a heating plate (3) is fixedly connected to the inner wall on the left side of the top of the bottom plate (1), a distillation box (4) is installed in the middle of the top of the heating plate (3), a purification box (10) is fixedly connected to the right side of the top of the distillation box (4), an exhaust assembly is installed on the inner wall of the purification box (10), a sedimentation tank (2) is fixedly connected to the middle of the top of the distillation box (4), a motor (7) is installed in the middle of the top of the sedimentation tank (2), a driving rod (24) is installed on the driving end of the motor (7), a first filter screen (13) is fixedly connected to the upper side of the inner wall of the sedimentation tank (2), and the driving rod (24) is installed on the driving end of the motor (7). The bottom end of the rod (24) passes through the first filter screen (13) and is rotatably connected to the bottom end of the inner wall of the precipitation tank (2); four sides of the outer wall of the driving rod (24) close to the bottom end of the first filter screen (13) are equipped with a spraying assembly; four sides of the outer wall of the driving rod (24) close to the bottom end of the precipitation tank (2) are fixedly connected to a plurality of stirring rods (15); a feed pipe (6) is passed through the left side of the top end of the precipitation tank (2); a connecting pipe (17) is passed through the right side of the bottom end of the precipitation tank (2); and a hydrogenation reaction box (11) is fixedly connected to the right side of the top end of the bottom plate (1).

2. An OCU device for C4 separation according to claim 1, characterized in that: The medicine spraying assembly comprises a medicine adding box (14), one end of the inner side of the medicine adding box (14) is fixedly connected to the outer wall of the driving rod (24) near the lower side of the first filter screen (13), a cavity (26) is opened on the upper side of the inner wall of the driving rod (24), a medicine adding port (25) is opened on the right side of the outer wall of the cavity (26) near the top of the cavity (26), a plurality of medicine spraying holes (29) are opened at the bottom end of the inner wall of the medicine adding box (14), a first magnet (27) is fixedly connected to the top of the inner wall of the medicine adding box (14) near the driving rod (24), and a second magnet (28) is slidably connected to the top of the inner wall of the medicine adding box (14) near the outer side of the connecting pipe (17), and the bottom end of the second magnet (28) is tightly attached to the bottom surface of the inner wall of the medicine adding box (14).

3. An OCU device for C4 separation according to claim 1, characterized in that: The bottom end of the connecting pipe (17) passes through the inner wall of the distillation box (4), and a solenoid valve is installed on the inner wall of the connecting pipe (17). A second filter screen (16) is fixedly connected to the bottom end of the inner wall of the sedimentation tank (2) corresponding to the upper side of the connecting pipe (17), and a slag discharge pipe (5) is passed through the outer wall of the left end of the sedimentation tank (2) corresponding to the upper side of the second filter screen (16).

4. The OCU device for C4 separation according to claim 1, characterized in that: The exhaust assembly comprises an exhaust fan (21), a through hole is provided in the middle of the right side of the top of the distillation box (4), a perforation is provided at the bottom end of the inner wall of the purification box (10) corresponding to the upper side of the through hole, the bottom end of the exhaust fan (21) is fixedly connected to the outside of the perforation at the bottom end of the inner wall of the purification box (10), an exhaust hopper (18) is fixedly connected to the inner wall of the through hole, and a partition net is fixedly connected to the inner wall of the bottom end of the exhaust hopper (18).

5. An OCU device for C4 separation according to claim 4, characterized in that: An activated carbon adsorption net (22) is fixedly connected to the upper side of the inner wall of the purification box (10), and an exhaust pipe (9) is passed through the middle of the top end of the purification box (10).

6. The OCU device for C4 separation according to claim 1, characterized in that: A feed pipe (19) is provided through the bottom right end of the distillation box (4), the right end of the feed pipe (19) passes through the inner wall of the hydrogenation reaction box (11), a one-way valve (20) is installed at the top of the inner wall of the feed pipe (19), a hydrogenation pipe (12) is provided through the top of the front end outer wall of the hydrogenation reaction box (11), and a discharge port is provided at the bottom of the rear end outer wall of the hydrogenation reaction box (11).

7. The OCU device for C4 separation according to claim 1, characterized in that: The bottom end of the motor (7) is fixedly connected to a support plate (8), the front and rear sides of the bottom end of the support plate (8) are fixedly connected to the top end of the sedimentation tank (2), and the upper side of the outer wall of the driving rod (24) is rotatably connected to the inner wall of the support plate (8).

8. An OCU device for C4 separation according to claim 2, characterized in that: The top of the medicine adding box (14) is fixedly connected to a triangular scraper (23), and the top of the triangular scraper (23) is in close contact with the bottom surface of the first filter screen (13).

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