Tubular fixed bed reactor for MIBK (Methyl Isobutyl Ketone) production

Abstract

The utility model relates to the technical field of tubular reactors, and discloses a tubular fixed bed reactor for MIBK (Methyl Isobutyl Ketone) production, which comprises a reaction main body, the reaction main body comprises a tank body, a stirring component is arranged at the bottom end in the tank body, and a driving component is arranged in the middle in the tank body; through the arrangement of the reaction assembly, a worker can conveniently add materials into a reaction pipe through a feeding pipe during use, then the worker starts a motor, the motor is started to drive a first rotating rod to rotate, the first rotating rod rotates to drive a first gear to rotate, and the first gear rotates to drive a second gear to rotate; a second gear rotates to drive a second rotating rod to rotate, the second rotating rod rotates to drive a second fixing rod and a scraping plate to rotate, the second fixing rod rotates to stir materials in the reaction tube so as to mix the materials, and the scraping plate rotates to scrape the inner wall of the reaction tube so as to scrape off the materials adhered to the inner wall.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular reactors, and more specifically to a tubular fixed bed reactor for MIBK production. Background Art

[0002] The tube-type fixed bed reactor for MIBK production is a device used to produce methyl isobutyl ketone. The main structure of this reactor includes multiple parallel reaction tubes, each of which is filled with a catalyst or carrier filler as a fixed phase, and the materials undergo chemical reactions and heat exchange processes in the reaction tubes.

[0003] During the use of the current shell-and-tube fixed-bed reactor, workers add materials into the reaction tubes and drive the reaction tubes to rotate through a driving structure to perform a material mixing reaction. Since the reaction tubes have inertia when rotating and the materials rotate with the rotation of the reaction tubes, the materials remain in a state, resulting in insufficient material mixing. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a tubular fixed bed reactor for MIBK production to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical scheme: a tubular fixed-bed reactor for MIBK production, comprising a reaction body, the reaction body comprising a tank body, a stirring assembly being arranged at the bottom end of the tank body, a driving assembly being arranged at the middle part of the tank body, a reaction assembly being arranged on the outside of the driving assembly inside the tank body, the reaction assembly comprising a reaction tube, the top end of the reaction tube passing through the tank body and being fixedly connected to the tank body, a feeding tube being fixedly connected to one side of the top end of the reaction tube, a second rotating rod being rotatably connected to the middle part of the reaction tube, and the top end of the second rotating rod passing through the top end of the reaction tube, a second gear being fixedly connected to the top end of the second rotating rod, a second fixed rod being equidistantly arranged and fixedly connected to one side of the second rotating rod located inside the reaction tube, a scraper being fixedly connected to one side of the second fixed rod, and the scraper being slidably connected to the inside of the reaction tube.

[0006] Preferably, the driving assembly includes a motor, which is arranged at the top of the tank body, and the bottom end of the motor is transmission-connected to a first rotating rod, and the first rotating rod passes through the top of the tank body and is rotationally connected to the tank body, and the first rotating rod is fixedly connected to a first gear on one side located outside the tank body, and the first gear is meshed with a second gear.

[0007] Preferably, one end of the first rotating rod located inside the tank body is equidistantly and fixedly connected with a fixing sleeve, both sides of the fixing sleeve are fixedly connected with a first fixing rod, and one side of the first fixing rod is fixedly connected with a fan blade.

[0008] Preferably, the stirring assembly includes a driving box, the top end of the driving box is fixedly connected to the bottom end of the first rotating rod, the bottom end of the driving box is fixedly connected to a connecting and fixing rod, the connecting and fixing rod passes through the driving box, and one end of the connecting and fixing rod located inside the driving box is fixedly connected to a third gear.

[0009] Preferably, fourth gears are meshed on both sides of the top of the third gear, and a stirring rod is fixedly connected to the side of the fourth gear away from each other. The stirring rod passes through the drive box and is rotatably connected to the drive box, and a rotating stirring blade is fixedly connected to one end of the stirring rod located outside the drive box.

[0010] Preferably, a heat dissipation opening is provided in a circular array on the outer wall of the tank body, a discharge pipe is fixedly connected to the bottom end of the tank body, a fixing plate is fixedly connected to the bottom end of the inside of the tank body, and a fixing frame is fixedly connected to the top end of the tank body.

[0011] Preferably, the middle portion of the fixing frame is fixedly connected to the motor, and the middle portions of the fixing plates are fixedly connected to the first rotating rod and the reaction tube.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model is provided with a reaction assembly, which is beneficial for the staff to add materials into the reaction tube through the feeding pipe respectively during use, and then the staff starts the motor, the motor starts to drive the first rotating rod to rotate, the rotation of the first rotating rod drives the first gear to rotate, the rotation of the first gear drives the second gear to rotate, the rotation of the second gear drives the second rotating rod to rotate, the rotation of the second rotating rod drives the second fixed rod and the scraper to rotate, the rotation of the second fixed rod can stir the material inside the reaction tube, so that the material is mixed, and the rotation of the scraper can scrape the inner wall of the reaction tube, so as to scrape off the material adhering to the inner wall.

[0014] 2. The utility model is provided with a driving assembly and a stirring assembly, which is advantageous when in use. The staff starts the motor to drive the first rotating rod to rotate, the rotation of the first rotating rod drives the fixed sleeve to rotate, the rotation of the fixed sleeve drives the fan blades to rotate, so that the fan blades rotate to generate a blowing force, so that the reaction tube is dissipated, and the hot air is discharged through the heat dissipation port. The rotation of the first rotating rod drives the driving box to rotate, and the rotation of the driving box drives the stirring rod to rotate. Since the fourth gear is meshed with the third gear, the rotating stirring blade rotates with the first rotating rod as the axis and rotates on its own at the same time, so that the reacted materials are uniformly mixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the reaction component structure of the utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the drive assembly of the utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the stirring assembly of the utility model.

[0020] The accompanying drawings are marked as follows: 1. reaction body; 11. tank body; 12. heat dissipation port; 13. fixing plate; 14. discharge pipe; 15. fixing frame; 2. driving assembly; 21. motor; 22. first rotating rod; 23. first gear; 24. fixing sleeve; 25. first fixing rod; 26. fan blade; 3. reaction assembly; 31. reaction tube; 32. feeding pipe; 33. second rotating rod; 34. second gear; 35. second fixing rod; 36. scraper; 4. stirring assembly; 41. driving box; 42. connecting fixing rod; 43. third gear; 44. fourth gear; 45. stirring rod; 46. rotating stirring blade. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the shell-and-tube reactor involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] Reference Figure 1 - Figure 5The utility model provides a tubular fixed bed reactor for MIBK production, comprising a reaction body 1, the reaction body 1 comprising a tank body 11, a stirring assembly 4 is arranged at the bottom end of the tank body 11, a driving assembly 2 is arranged in the middle of the tank body 11, a reaction assembly 3 is arranged on the outside of the driving assembly 2 in the tank body 11, the reaction assembly 3 comprises a reaction tube 31, the top end of the reaction tube 31 passes through the tank body 11 and is fixedly connected to the tank body 11, a feeding tube 32 is fixedly connected to one side of the top end of the reaction tube 31, a second rotating rod 33 is rotatably connected to the middle part of the reaction tube 31, and the top end of the second rotating rod 33 passes through the top end of the reaction tube 31, a second gear 34 is fixedly connected to the top end of the second rotating rod 33, and the second rotating rod 33 is located on one side of the reaction tube 31 and is equidistantly arranged and fixedly connected to The second fixed rod 35 has a scraper 36 fixedly connected to one side of the second fixed rod 35, and the scraper 36 is slidably connected to the inside of the reaction tube 31. When in use, the staff adds materials into the reaction tube 31 through the feeding tube 32 respectively, and then the staff starts the motor 21. The motor 21 starts to drive the first rotating rod 22 to rotate, and the rotation of the first rotating rod 22 drives the first gear 23 to rotate. The rotation of the first gear 23 drives the second gear 34 to rotate, and the rotation of the second gear 34 drives the second rotating rod 33 to rotate. The rotation of the second rotating rod 33 drives the second fixed rod 35 and the scraper 36 to rotate. The rotation of the second fixed rod 35 can stir the material inside the reaction tube 31, so that the material is mixed, and the rotation of the scraper 36 can scrape the inner wall of the reaction tube 31, so as to scrape off the material adhering to the inner wall.

[0023] Reference Figure 3 - Figure 5The driving assembly 2 includes a motor 21, which is arranged at the top of the tank body 11. The bottom end of the motor 21 is connected to the first rotating rod 22 in a transmission manner, and the first rotating rod 22 passes through the top of the tank body 11 and is rotatably connected to the tank body 11. The first rotating rod 22 is located on one side outside the tank body 11 and is fixedly connected to the first gear 23, and the first gear 23 is meshed with the second gear 34. The first rotating rod 22 is located on one end inside the tank body 11 and is equidistantly fixedly connected to the fixing sleeve 24. Both sides of the fixing sleeve 24 are fixedly connected to the first fixing rod 25. The first fixing rod 2 5 is fixedly connected with a fan blade 26 on one side, and the stirring assembly 4 includes a driving box 41. The top of the driving box 41 is fixedly connected to the bottom end of the first rotating rod 22. The bottom end of the driving box 41 is fixedly connected with a connecting and fixing rod 42, which penetrates the driving box 41. The connecting and fixing rod 42 is fixedly connected with a third gear 43 at one end inside the driving box 41. The top of the third gear 43 is meshed with fourth gears 44 on both sides. The fourth gear 44 is fixedly connected with a stirring rod 45 on one side away from each other. The stirring rod 45 penetrates the driving box 41 and is engaged with the driving box 41 is rotatably connected, one end of the stirring rod 45 located outside the driving box 41 is fixedly connected with a rotating stirring blade 46, the outer wall of the tank body 11 is provided with a heat dissipation port 12 in an annular array, the bottom end of the tank body 11 is fixedly connected with a discharge pipe 14, the bottom end of the tank body 11 is fixedly connected with a fixing plate 13, the top end of the tank body 11 is fixedly connected with a fixing frame 15, the middle part of the fixing frame 15 is fixedly connected with the motor 21, and the middle part of the fixing plate 13 is fixedly connected with the first rotating rod 22 and the reaction tube 31. When in use, the staff starts the motor 21 to drive the first rotating rod 2 2 rotates, the first rotating rod 22 rotates to drive the fixed sleeve 24 to rotate, and the fixed sleeve 24 rotates to drive the fan blades 26 to rotate, so that the fan blades 26 rotate to generate a blowing force, so that the reaction tube 31 is cooled, and the hot air is discharged through the heat dissipation port 12, and the first rotating rod 22 rotates to drive the driving box 41 to rotate, and the driving box 41 rotates to drive the stirring rod 45 to rotate. Since the fourth gear 44 is meshed with the third gear 43, the rotating stirring blade 46 rotates with the first rotating rod 22 as the axis and rotates at the same time, so that the reacted materials are uniformly mixed.

[0024] The working principle of the utility model is as follows: first, when in use, the staff adds the material into the reaction tube 31 through the feed pipe 32, and the staff starts the motor 21, the motor 21 starts to drive the first rotating rod 22 to rotate, the first rotating rod 22 rotates to drive the first gear 23, the fixed sleeve 24 and the driving box 41 to rotate, the first gear 23 rotates to drive the second gear 34 to rotate, the second gear 34 rotates to drive the second rotating rod 33 to rotate, the second rotating rod 33 rotates to drive the second fixed rod 35 and the scraper 36 to rotate, the second fixed rod 35 rotates to stir the material inside the reaction tube 31, so that The materials are mixed, and the scraper 36 rotates to scrape the inner wall of the reaction tube 31, so as to scrape off the materials adhering to the inner wall. The fixed sleeve 24 rotates to drive the fan blade 26 to rotate, so that the fan blade 26 rotates to generate a blowing force, so that the reaction tube 31 is cooled, and the hot air is discharged through the heat dissipation port 12. The rotation of the first rotating rod 22 drives the driving box 41 to rotate, and the rotation of the driving box 41 drives the stirring rod 45 to rotate. Since the fourth gear 44 is meshed with the third gear 43, the rotating stirring blade 46 rotates with the first rotating rod 22 as the axis and rotates at the same time, so that the reacted materials are uniformly mixed.

[0025] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A tubular fixed bed reactor for MIBK production, comprising a reaction body (1), characterized in that: The reaction body (1) comprises a tank body (11), a stirring assembly (4) is arranged at the bottom end of the tank body (11), a driving assembly (2) is arranged in the middle of the tank body (11), a reaction assembly (3) is arranged outside the driving assembly (2) in the tank body (11), the reaction assembly (3) comprises a reaction tube (31), the top end of the reaction tube (31) passes through the tank body (11) and is fixedly connected to the tank body (11), and a feeding tube is fixedly connected to one side of the top end of the reaction tube (31). (32), a second rotating rod (33) is rotatably connected to the middle of the reaction tube (31), and the top end of the second rotating rod (33) passes through the top end of the reaction tube (31), and the top end of the second rotating rod (33) is fixedly connected to a second gear (34), and the second rotating rod (33) is fixedly connected to a second fixed rod (35) at an equidistant arrangement on one side of the reaction tube (31), and a scraper (36) is fixedly connected to one side of the second fixed rod (35), and the scraper (36) is slidably connected to the inside of the reaction tube (31).

2. The tube-in-tube fixed bed reactor for MIBK production according to claim 1, characterized in that: The driving assembly (2) comprises a motor (21), the motor (21) being arranged at the top end of the tank body (11), the bottom end of the motor (21) being transmission-connected to a first rotating rod (22), the first rotating rod (22) passing through the top end of the tank body (11) and being rotationally connected to the tank body (11), the first rotating rod (22) being fixedly connected to a first gear (23) on one side located outside the tank body (11), and the first gear (23) being meshed with a second gear (34).

3. The tube-in-tube fixed bed reactor for MIBK production according to claim 2, characterized in that: One end of the first rotating rod (22) located inside the tank body (11) is equidistantly and fixedly connected to a fixing sleeve (24), both sides of the fixing sleeve (24) are fixedly connected to a first fixing rod (25), and one side of the first fixing rod (25) is fixedly connected to a fan blade (26).

4. The tubular fixed bed reactor for MIBK production according to claim 1, characterized in that: The stirring assembly (4) comprises a driving box (41), the top end of the driving box (41) is fixedly connected to the bottom end of the first rotating rod (22), the bottom end of the driving box (41) is fixedly connected to a connecting and fixing rod (42), the connecting and fixing rod (42) passes through the driving box (41), and one end of the connecting and fixing rod (42) located inside the driving box (41) is fixedly connected to a third gear (43).

5. The tube-in-tube fixed bed reactor for MIBK production according to claim 4, characterized in that: Fourth gears (44) are meshed on both sides of the top end of the third gear (43); a stirring rod (45) is fixedly connected to the side of the fourth gear (44) that is away from each other; the stirring rod (45) passes through the drive box (41) and is rotatably connected to the drive box (41); and a rotating stirring blade (46) is fixedly connected to one end of the stirring rod (45) located outside the drive box (41).

6. The tube-in-tube fixed bed reactor for MIBK production according to claim 1, characterized in that: The outer wall of the tank body (11) is provided with heat dissipation openings (12) in an annular array, the bottom end of the tank body (11) is fixedly connected to a discharge pipe (14), the bottom end of the interior of the tank body (11) is fixedly connected to a fixing plate (13), and the top end of the tank body (11) is fixedly connected to a fixing frame (15).

7. The tube-in-tube fixed bed reactor for MIBK production according to claim 6, characterized in that: The middle part of the fixing frame (15) is fixedly connected to the motor (21), and the middle part of the fixing plate (13) is fixedly connected to the first rotating rod (22) and the reaction tube (31).

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