Furfural continuous rectification device

Abstract

The utility model relates to the technical field of chemical equipment, and provides a furfural continuous rectification device which comprises a bottom plate, the left side of the upper surface of the bottom plate is fixedly connected with a supporting plate, the upper surface of the supporting plate is fixedly connected with a bottom cover, and the upper side of the outer surface of the bottom cover is fixedly connected with a first limiting sleeve; the upper side of the inner surface of the first limiting sleeve is movably connected with a packed tower, and the lower surface of the packed tower is movably connected with the upper surface of the bottom cover; the lower surface of the mounting plate is fixedly connected with the right side of the upper surface of the bottom plate; the rotating mechanism is arranged on the lower side of the outer surface of the packed tower; wherein the rotating mechanism comprises a first motor, the first motor is fixedly mounted on the lower side of the left surface of the mounting plate, and the other end of an output shaft of the mounting plate is fixedly sleeved with a circular shaft. By means of the technical scheme, the problem that in the prior art, liquid phase spraying is not uniform is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, and specifically to a furfural continuous distillation device. Background Art

[0002] Furfural is an industrial chemical that can be extracted from various agricultural and sideline products, including corn cobs, oat and wheat bran, and sawdust. As a basic chemical product, furfural is widely used as an industrial solvent in the chemical industry. It can also be used to produce various resins, varnishes, pesticides, rubber, etc. However, furfural production is often accompanied by environmental pollution, so its production waste must be treated harmlessly.

[0003] When operators are producing furfural, they often use a continuous distillation device to produce furfural in large quantities. During actual use, although the existing continuous distillation device has basic distillation functions, the position of the liquid inlet pipe inside the existing continuous distillation device is fixed, so that the reaction liquid to be distilled cannot be evenly distributed inside the packed tower, which reduces the distillation efficiency of furfural. Therefore, it is necessary to improve it. Utility Model Content

[0004] The utility model provides a furfural continuous distillation device, which solves the problem of uneven liquid phase spraying in the related technology.

[0005] The technical solution of the utility model is as follows: A furfural continuous distillation device, comprising:

[0006] A bottom plate, a support plate is fixedly connected to the left side of the upper surface of the bottom plate, a bottom cover is fixedly connected to the upper surface of the support plate, a first limiting sleeve is fixedly connected to the upper side of the outer surface of the bottom cover, a packing tower is movably connected to the upper side of the inner surface of the first limiting sleeve, and the lower surface of the packing tower is movably connected to the upper surface of the bottom cover;

[0007] A mounting plate, the lower surface of the mounting plate being fixedly connected to the right side of the upper surface of the base plate;

[0008] A rotating mechanism, wherein the rotating mechanism is arranged on the lower side of the outer surface of the packed tower;

[0009] Among them, the rotating mechanism includes a No. 1 motor, which is fixedly installed on the lower side of the left surface of the mounting plate, and the other end of the output shaft of the No. 1 motor is fixedly sleeved with a round shaft, and the outer surface of the round shaft is fixedly sleeved with a No. 1 gear, and the outer surface of the No. 1 gear is meshedly connected with a gear ring, and the inner surface of the gear ring is fixedly sleeved with the outer surface of the stuffing tower. The operation of the No. 1 motor causes the round shaft and the No. 1 gear to rotate and drives the gear ring and the stuffing tower to rotate as a whole.

[0010] As a preferred technical solution of the utility model, the bottom end of the bottom cover is fixedly connected with a liquid phase discharge port, the top end of the liquid phase discharge port penetrates the bottom cover and extends to the interior of the bottom cover, and the lower side of the front end of the outer surface of the bottom cover is fixedly connected with a steam inlet pipe, the rear end of the steam inlet pipe penetrates the bottom cover and extends to the interior of the bottom cover.

[0011] As a preferred technical solution of the utility model, a top cover is movably connected to the upper surface of the packing tower, the top cover is fixedly connected to the top of the left surface of the mounting plate, a second limiting sleeve is fixedly connected to the bottom end of the outer surface of the top cover, the inner surface of the second limiting sleeve is movably connected to the top of the outer surface of the packing tower, a vapor phase discharge port is fixedly connected to the top of the top cover, the bottom end of the vapor phase discharge port penetrates the top cover and extends to the interior of the top cover, a first liquid inlet pipe is fixedly connected to the front end of the outer surface of the top cover, the rear end of the first liquid inlet pipe penetrates the top cover and extends to the interior of the top cover, a second liquid inlet pipe is fixedly connected to the left side of the inner surface of the top cover, and the left end of the second liquid inlet pipe penetrates the top cover and extends to the outside of the top cover.

[0012] As a preferred technical solution of the utility model, the inner surface of the packed tower is fixedly connected with a first packing restriction plate, a second packing restriction plate, a third packing restriction plate and a fourth packing restriction plate in sequence from top to bottom, the inner surface between the first packing restriction plate and the second packing restriction plate is movably installed with bulk packing, the inner surface between the second packing restriction plate and the third packing restriction plate is movably installed with corrugated packing, and the inner surface between the third packing restriction plate and the fourth packing restriction plate is movably installed with grid packing.

[0013] As a preferred technical solution of the utility model, a closing plate is movably connected to the left side of the outer surface of the packing tower, the right end of the closing plate passes through the packing tower and extends to the interior of the packing tower, and a fixing plate located between the gear ring and the closing plate is fixedly connected to the outer surface of the packing tower, and a movable groove is provided on the upper surface of the fixing plate.

[0014] As a preferred technical solution of the utility model, a connecting block is fixedly connected to the left surface of the closing plate, a connecting rod is fixedly connected to the lower surface of the connecting block, and the bottom end of the outer surface of the connecting rod is movably connected to the inner surface of the movable groove.

[0015] As a preferred technical solution of the utility model, a No. 2 motor located on the front side of the movable groove is fixedly installed on the left side of the lower surface of the fixed plate, and a rotating shaft is fixedly sleeved on the other end of the output shaft of the No. 2 motor. The top end of the outer surface of the rotating shaft passes through the fixed plate and extends to the top of the fixed plate and is fixedly sleeved with a No. 2 gear. The outer surface of the No. 2 gear is meshingly connected with a tooth plate, the lower surface of the tooth plate is movably connected to the upper surface of the fixed plate, and the right side of the rear surface of the tooth plate is fixedly connected to the front surface of the connecting rod.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model is provided with a packing tower, a first limiting sleeve, a circular shaft, a No. 1 gear and a gear ring. When the No. 1 motor is running, the circular shaft and the No. 1 gear will start to rotate. Since the outer surface of the No. 1 gear and the outer surface of the gear ring are meshed with each other, the gear ring will rotate under the meshing drive of the No. 1 gear, and the packing tower as a whole will also start to rotate under the limit of the first limiting sleeve and the second limiting sleeve under the drive of the gear ring. This allows the first liquid inlet pipe and the second liquid inlet pipe to evenly spray the reaction liquid inside the packing tower, thereby improving the contact rate between the reaction liquid and the hot steam and improving the production efficiency of furfural.

[0018] 2. The utility model provides a closing plate, a fixing plate, a connecting rod, a No. 2 gear and a toothed plate. When the No. 2 motor is running, the rotating shaft and the No. 2 gear will start to rotate. At this time, due to the meshing connection between the outer surface of the No. 2 gear and the outer surface of the toothed plate, the toothed plate, the connecting rod and the connecting block as a whole will move to the left along the inner surface of the movable groove under the drive of the No. 2 gear. This enables the closing plate to release the sealing of the interior of the packing tower and the limiting of the bulk packing, corrugated packing and grid packing, thereby facilitating the operator to install and replace the bulk packing, corrugated packing and grid packing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the back of the utility model;

[0022] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0023] Figure 4 It is a cross-sectional structural schematic diagram of the side of the utility model;

[0024] Figure 5 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0025] In the figure: 1. bottom plate; 2. support plate; 3. bottom cover; 4. packing tower; 5. first limiting sleeve; 6. mounting plate; 7. No. 1 motor; 8. round shaft; 9. No. 1 gear; 10. gear ring; 11. liquid phase discharge port; 12. steam inlet pipe; 13. top cover; 14. second limiting sleeve; 15. steam phase discharge port; 16. first liquid inlet pipe; 17. second liquid inlet pipe; 18. first packing limiting plate; 19. second packing limiting plate; 20. third packing limiting plate; 21. fourth packing limiting plate; 22. movable groove; 23. bulk packing; 24. corrugated packing; 25. grid packing; 26. closing plate; 27. connecting block; 28. fixing plate; 29. ​​connecting rod; 30. No. 2 motor; 31. rotating shaft; 32. No. 2 gear; 33. gear plate. DETAILED DESCRIPTION

[0026] The following will be combined with 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.

[0027] like Figures 1 to 5 As shown, the utility model provides a furfural continuous distillation device, comprising:

[0028] A bottom plate 1, a support plate 2 is fixedly connected to the left side of the upper surface of the bottom plate 1, a bottom cover 3 is fixedly connected to the upper surface of the support plate 2, a first limiting sleeve 5 is fixedly connected to the upper side of the outer surface of the bottom cover 3, a packing tower 4 is movably connected to the upper side of the inner surface of the first limiting sleeve 5, and the lower surface of the packing tower 4 is movably connected to the upper surface of the bottom cover 3;

[0029] A mounting plate 6, wherein the lower surface of the mounting plate 6 is fixedly connected to the right side of the upper surface of the base plate 1;

[0030] A rotating mechanism, the rotating mechanism is arranged on the lower side of the outer surface of the packing tower 4;

[0031] Among them, the rotating mechanism includes a No. 1 motor 7, which is fixedly mounted on the lower side of the left surface of the mounting plate 6, and the other end of the output shaft of the No. 1 motor 7 is fixedly sleeved with a circular shaft 8, and the outer surface of the circular shaft 8 is fixedly sleeved with a No. 1 gear 9, and the outer surface of the No. 1 gear 9 is meshingly connected with a gear ring 10, and the inner surface of the gear ring 10 is fixedly sleeved with the outer surface of the filling tower 4. The operation of the No. 1 motor 7 causes the circular shaft 8 and the No. 1 gear 9 to rotate and drives the gear ring 10 and the filling tower 4 to rotate as a whole.

[0032] When motor No. 1 7 is running, the circular shaft 8 and gear No. 1 9 will start to rotate. Due to the mutual meshing between the outer surfaces of gear No. 1 9 and the gear ring 10, the gear ring 10 and the filling tower 4 as a whole will start to rotate along the inner surface of the first limit sleeve 5 driven by gear No. 1 9.

[0033] Among them, the bottom end of the bottom cover 3 is fixedly connected with a liquid phase discharge port 11, the top end of the liquid phase discharge port 11 penetrates the bottom cover 3 and extends to the interior of the bottom cover 3, and the lower side of the front end of the outer surface of the bottom cover 3 is fixedly connected with a steam inlet pipe 12, the rear end of the steam inlet pipe 12 penetrates the bottom cover 3 and extends to the interior of the bottom cover 3.

[0034] Due to the design of the liquid phase discharge port 11 , the operator can take out the residual reaction liquid in the entire interior of the bottom cover 3 after the distillation is completed.

[0035] Among them, the upper surface of the packing tower 4 is movably connected with a top cover 13, the top cover 13 and the top of the left surface of the mounting plate 6 are fixedly connected, the bottom end of the outer surface of the top cover 13 is fixedly connected with a second limiting sleeve 14, the inner surface of the second limiting sleeve 14 and the top of the outer surface of the packing tower 4 are movably connected, the top of the top cover 13 is fixedly connected with a vapor phase discharge port 15, the bottom end of the vapor phase discharge port 15 penetrates the top cover 13 and extends to the interior of the top cover 13, the front end of the outer surface of the top cover 13 is fixedly connected with a first liquid inlet pipe 16, the rear end of the first liquid inlet pipe 16 penetrates the top cover 13 and extends to the interior of the top cover 13, the left side of the inner surface of the top cover 13 is fixedly connected with a second liquid inlet pipe 17, the left end of the second liquid inlet pipe 17 penetrates the top cover 13 and extends to the outside of the top cover 13.

[0036] Due to the design of the top cover 13 and the second limiting sleeve 14, when the packing tower 4 rotates as a whole, the top cover 13 will not rotate as a whole.

[0037] Among them, the inner surface of the packing tower 4 is fixedly connected with the first packing restriction plate 18, the second packing restriction plate 19, the third packing restriction plate 20 and the fourth packing restriction plate 21 in sequence from top to bottom, the inner surface between the first packing restriction plate 18 and the second packing restriction plate 19 is movably installed with bulk packing 23, the inner surface between the second packing restriction plate 19 and the third packing restriction plate 20 is movably installed with corrugated packing 24, and the inner surface between the third packing restriction plate 20 and the fourth packing restriction plate 21 is movably installed with a grid packing 25.

[0038] Due to the design of the bulk packing 23, the corrugated packing 24 and the grid packing 25, the reaction liquid can fully contact with the hot steam.

[0039] Among them, a closing plate 26 is movably connected to the left side of the outer surface of the packing tower 4, the right end of the closing plate 26 passes through the packing tower 4 and extends to the inside of the packing tower 4, and a fixing plate 28 located between the gear ring 10 and the closing plate 26 is fixedly connected to the outer surface of the packing tower 4, and a movable groove 22 is opened on the upper surface of the fixing plate 28.

[0040] The design of the closing plate 26 serves to limit the bulk filler 23 , the corrugated filler 24 and the grid filler 25 .

[0041] The left surface of the closing plate 26 is fixedly connected with a connecting block 27 , the lower surface of the connecting block 27 is fixedly connected with a connecting rod 29 , and the bottom end of the outer surface of the connecting rod 29 is movably connected to the inner surface of the movable groove 22 .

[0042] Due to the design of the movable groove 22 , the connecting rod 29 , the connecting block 27 and the closing plate 26 can move left and right along the inner surface of the movable groove 22 .

[0043] Among them, a No. 2 motor 30 located on the front side of the movable groove 22 is fixedly installed on the left side of the lower surface of the fixed plate 28, and a rotating shaft 31 is fixedly sleeved on the other end of the output shaft of the No. 2 motor 30. The top end of the outer surface of the rotating shaft 31 passes through the fixed plate 28 and extends to the top of the fixed plate 28 and is fixedly sleeved with a No. 2 gear 32. The outer surface of the No. 2 gear 32 is meshingly connected with a tooth plate 33. The lower surface of the tooth plate 33 is movably connected to the upper surface of the fixed plate 28, and the right side of the rear surface of the tooth plate 33 is fixedly connected to the front surface of the connecting rod 29.

[0044] When the second motor 30 is running, the rotating shaft 31 and the second gear 32 will start to rotate, and the gear plate 33 and the connecting rod 29 will start to move leftward along the inner surface of the movable slot 22 under the meshing drive of the second gear 32 .

[0045] The working principle and use process of this utility model:

[0046] First, the operator starts the No. 2 motor 30. The operation of the No. 2 motor 30 will cause the No. 2 gear 32 to start rotating driven by the rotating shaft 31. Since the No. 2 gear 32 and the tooth plate 33 are meshed with each other, the tooth plate 33 and the closing plate 26 as a whole will gradually start to move to the left under the limit of the inner surface of the movable groove 22. At this time, the interior of the packing tower 4 will be exposed. Then the operator installs the bulk packing 23, the corrugated packing 24 and the grid packing 25 respectively inside the first packing limiting plate 18, the second packing limiting plate 19, the third packing limiting plate 20 and the fourth packing limiting plate 21 and starts the No. 2 motor 30 again to make the closing plate 26 re-seal the packing tower 4.

[0047] Then, the operator injects the reaction liquid into the interior of the packing tower 4 through the first liquid inlet pipe 16 and the second liquid inlet pipe 17, and then injects hot steam into the interior of the packing tower 4 through the steam inlet pipe 12. Then the operator starts the No. 1 motor 7. As the No. 1 motor 7 runs, the No. 1 gear 9 rotates driven by the circular shaft 8. Due to the engagement between the No. 1 gear 9 and the gear ring 10, the gear ring 10 and the packing tower 4 as a whole rotate under the common limitation of the first limiting sleeve 5 and the second limiting sleeve 14. In this process, the overall rotation of the packing tower 4 causes the first liquid inlet pipe 16 and the second liquid inlet pipe 17 to evenly spray the reaction liquid above the first packing limiting plate 18, thereby ensuring that the reaction liquid can fully and evenly react with the hot steam, thereby improving the production efficiency of furfural.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A furfural continuous distillation device, characterized in that, Included are: A bottom plate (1), the left side of the upper surface of the bottom plate (1) being fixedly connected to a support plate (2), the upper surface of the support plate (2) being fixedly connected to a bottom cover (3), the upper side of the outer surface of the bottom cover (3) being fixedly connected to a first limiting sleeve (5), the upper side of the inner surface of the first limiting sleeve (5) being movably connected to a packing tower (4), the lower surface of the packing tower (4) being movably connected to the upper surface of the bottom cover (3); A mounting plate (6), wherein the lower surface of the mounting plate (6) is fixedly connected to the right side of the upper surface of the base plate (1); A rotating mechanism, the rotating mechanism being arranged on the lower side of the outer surface of the packing tower (4); The rotating mechanism comprises a No. 1 motor (7), the No. 1 motor (7) is fixedly mounted on the lower side of the left surface of the mounting plate (6), the other end of the output shaft of the No. 1 motor (7) is fixedly sleeved with a round shaft (8), the outer surface of the round shaft (8) is fixedly sleeved with a No. 1 gear (9), the outer surface of the No. 1 gear (9) is meshingly connected with a gear ring (10), the inner surface of the gear ring (10) is fixedly sleeved with the outer surface of the packing tower (4), and the No. 1 motor (7) is running to rotate the round shaft (8) and the No. 1 gear (9) and drive the gear ring (10) and the packing tower (4) to rotate as a whole.

2. A furfural continuous distillation device according to claim 1, characterized in that: The bottom end of the bottom cover (3) is fixedly connected to a liquid phase discharge port (11), the top end of the liquid phase discharge port (11) penetrates the bottom cover (3) and extends to the interior of the bottom cover (3), and the lower side of the front end of the outer surface of the bottom cover (3) is fixedly connected to a steam inlet pipe (12), the rear end of the steam inlet pipe (12) penetrates the bottom cover (3) and extends to the interior of the bottom cover (3).

3. A furfural continuous distillation device according to claim 1, characterized in that: The upper surface of the packing tower (4) is movably connected to a top cover (13), the top cover (13) is fixedly connected to the top of the left surface of the mounting plate (6), the bottom end of the outer surface of the top cover (13) is fixedly connected to a second limiting sleeve (14), the inner surface of the second limiting sleeve (14) is movably connected to the top of the outer surface of the packing tower (4), the top of the top cover (13) is fixedly connected to a vapor phase discharge port (15), the bottom end of the vapor phase discharge port (15) penetrates the top cover (13) and extends to the inside of the top cover (13), the front end of the outer surface of the top cover (13) is fixedly connected to a first liquid inlet pipe (16), the rear end of the first liquid inlet pipe (16) penetrates the top cover (13) and extends to the inside of the top cover (13), the left side of the inner surface of the top cover (13) is fixedly connected to a second liquid inlet pipe (17), the left end of the second liquid inlet pipe (17) penetrates the top cover (13) and extends to the outside of the top cover (13).

4. A furfural continuous distillation device according to claim 1, characterized in that: The inner surface of the packing tower (4) is fixedly connected with a first packing restriction plate (18), a second packing restriction plate (19), a third packing restriction plate (20) and a fourth packing restriction plate (21) in sequence from top to bottom; a bulk packing (23) is movably mounted on the inner surface between the first packing restriction plate (18) and the second packing restriction plate (19); a corrugated packing (24) is movably mounted on the inner surface between the second packing restriction plate (19) and the third packing restriction plate (20); and a grid packing (25) is movably mounted on the inner surface between the third packing restriction plate (20) and the fourth packing restriction plate (21).

5. A furfural continuous distillation device according to claim 1, characterized in that: A closing plate (26) is movably connected to the left side of the outer surface of the packing tower (4), the right end of the closing plate (26) penetrates the packing tower (4) and extends into the interior of the packing tower (4), and a fixing plate (28) located between the gear ring (10) and the closing plate (26) is fixedly connected to the outer surface of the packing tower (4), and a movable groove (22) is provided on the upper surface of the fixing plate (28).

6. A furfural continuous distillation device according to claim 5, characterized in that: A connecting block (27) is fixedly connected to the left surface of the closing plate (26), a connecting rod (29) is fixedly connected to the lower surface of the connecting block (27), and the bottom end of the outer surface of the connecting rod (29) is movably connected to the inner surface of the movable groove (22).

7. A furfural continuous distillation device according to claim 5, characterized in that: A No. 2 motor (30) located in front of the movable groove (22) is fixedly mounted on the left side of the lower surface of the fixed plate (28); a rotating shaft (31) is fixedly sleeved on the other end of the output shaft of the No. 2 motor (30); a top end of the outer surface of the rotating shaft (31) penetrates the fixed plate (28) and extends to the top of the fixed plate (28) and is fixedly sleeved with a No. 2 gear (32); a tooth plate (33) is meshedly connected to the outer surface of the No. 2 gear (32); a lower surface of the tooth plate (33) is movably connected to an upper surface of the fixed plate (28); and a right side of a rear surface of the tooth plate (33) is fixedly connected to a front surface of a connecting rod (29).

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