Packed bed reactor

Abstract

The utility model relates to the technical field of biomass preparation, in particular to a packed bed reactor. The device comprises a shell, a filler, a dispersing assembly and a vibrating assembly. The filler is arranged in the shell and catalyzes the passing fluid. The dispersing assembly is arranged above the filler, and a plurality of rotating plates rotate to strike the fluid, so that the fluid is dispersed. And the vibration assembly is arranged below the filler, and the filler is continuously jacked up by the jacking plate in the rotating process, so that the filler vibrates. The driving mechanism is started to drive the gears and the gear rings to rotate, so that the rotating plates rotate, the rotating plates hit fluid, the fluid is diffused, the contact area of the fluid and a catalyst in filler is enlarged, the fluid and the catalyst fully react, and the catalytic efficiency is improved. The situation that part of the catalyst in the filler cannot be in contact with the fluid due to excessive concentration of fluid flowing, so that the reaction effect is affected, and part of the catalyst is wasted is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass preparation, in particular to a packed bed reactor. Background Art

[0002] The packed bed reactor used in biomass preparation is a common type of reactor, which is particularly suitable for the pyrolysis, gasification, or liquefaction of biomass. The packed bed reactor is a reactor in which immobilized enzymes or solid catalysts are filled to form a stable column bed. By passing a substrate solution, an enzyme catalytic reaction or chemical reaction is achieved under certain reaction conditions.

[0003] A Chinese patent document with authorization announcement number CN217922140U proposes a multi-layer packed bed enzyme reactor for efficiently producing fructose-glucose syrup, comprising a shell, three feed ports and a discharge port are fixedly installed on both sides of the shell, enzyme electrodes are installed on the shell at a position corresponding to the top of each discharge port, a motor is fixedly installed inside the shell, a rotating shaft is fixedly installed on the output shaft of the motor, and a partition is fixedly installed on the rotating shaft at a horizontal position corresponding to the feed port and the discharge port.

[0004] However, in the above application, although the function of layered liquid feeding is realized by opening the corresponding feed ports at the positions of the partitions to avoid the insufficient substrate contact of the tail packed bed and thus affecting the enzymatic reaction, the reaction liquid flows more concentratedly, which may still make the immobilized enzyme not fully contact with the reaction liquid, thereby resulting in insufficient reaction between the immobilized enzyme and the reaction liquid and low catalytic efficiency. Utility Model Content

[0005] In view of the problems existing in the background technology, a packed bed reactor is proposed.

[0006] The utility model provides a packed bed reactor, comprising a shell, a filler, a dispersion component and a vibration component. The filler is arranged in the shell to catalyze the fluid passing through. The dispersion component is arranged above the filler, and the fluid is hit by a plurality of rotating plates rotating to spread the fluid. The vibration component is arranged below the filler, and the filler is vibrated by the top plate continuously lifting the filler during the rotation process.

[0007] Preferably, the fillers are arranged in multiple groups in the vertical direction inside the shell.

[0008] Preferably, mesh plates are provided at the upper and lower ends of the plurality of fillers; wherein the mesh plate at the upper end of the filler is connected to the shell, and the mesh plate at the lower end of the filler is slidably connected to a slide groove provided on the inner wall of the shell.

[0009] Preferably, the dispersion component includes an annular slide rail disposed on the inner wall of the housing; a toothed ring is slidably connected within the annular slide rail; a plurality of fixing plates are uniformly arranged on the inner wall of the housing; a gear is rotatably connected to each of the plurality of fixing plates; a plurality of gears are meshed with the toothed ring, and one of the gears is connected to the driving end of a driving mechanism disposed on the fixing plate; a connecting column is further provided on the gear; a rotating plate is provided on each of the plurality of connecting columns.

[0010] Preferably, a plurality of rotating plates are uniformly arranged around the connecting column.

[0011] Preferably, a plurality of vibration components are provided in one-to-one correspondence with the plurality of gears; the vibration component includes a fixing block disposed on the inner wall of the housing; a spring is connected to the upper end of the fixing block; a connecting block is connected to the upper end of the spring; the connecting block is connected to a mesh plate located at the lower end of the packing, and an extension plate is further connected thereto; the upper end of the rotating plate is connected to a pushing plate; the pushing plate cooperates with the extension plate, and when the pushing plate rotates, the extension plate is pushed upward, causing the packing to vibrate.

[0012] Preferably, the upper end of the pushing plate is arc-shaped; adjusting slopes are provided on both sides of the lower end of the extension plate.

[0013] Compared with the prior art, the present utility model has the following beneficial technical effects:

[0014] (1) For this packed bed reactor, by starting the driving mechanism to drive a plurality of gears and the toothed ring to rotate, a plurality of rotating plates are rotated, and then the rotating plates strike the fluid, causing the fluid to spread out, expanding the contact area between the fluid and the catalyst in the packing, so that the fluid and the catalyst react fully, thereby improving the catalytic efficiency. It avoids the problem that the fluid flow is too concentrated, resulting in some catalysts in the packing not being able to contact the fluid, thus affecting the reaction effect and causing waste of some catalysts.

[0015] (2) For this packed bed reactor, when the rotating plate rotates, it drives the pushing plate to rotate at the same time. When the pushing plate passes by the extension plate, it will push the extension plate upward, thereby driving the mesh plate and the packing located at the lower end of the packing to be pushed upward. After being lifted, the packing will vibrate under the action of gravity and the spring. On the one hand, it can make the reaction between the fluid and the catalyst more sufficient, and on the other hand, it can disperse the agglomerated packing, thereby avoiding the reduction of the fluid flow rate caused by the packing agglomeration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the packing, mesh plate and chute structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the dispersion component structure of the present utility model;

[0019] Figure 4 This is a schematic diagram of the vibration component structure of the present utility model.

[0020] Reference numerals: 1, housing; 2, packing; 21, mesh plate; 22, chute; 3, dispersion component; 31, annular slide rail; 32, gear ring; 33, fixing plate; 34, gear; 35, drive mechanism; 36, connecting column; 37, rotating plate; 4, vibration component; 41, fixing block; 42, spring; 43, connecting block; 44, extension plate; 45, pushing plate. Detailed implementation manners

[0021] Embodiment 1

[0022] As Figures 1-3 shown, a packed bed reactor proposed by the present utility model includes a housing 1, a packing 2, a dispersion component 3 and a vibration component 4. The upper end of the housing 1 is provided with a feed port, and the lower end is provided with a discharge port; the packing 2 is arranged in the housing 1, and there is also a catalyst inside, which can catalyze the passing fluid. The dispersion component 3 is arranged above the packing 2, and the fluid is hit by the rotation of a plurality of rotating plates 37, so as to spread the fluid. The vibration component 4 is arranged below the packing 2, and the pushing plate 45 continuously pushes up the packing 2 during the rotation process, so that the packing 2 vibrates.

[0023] Further explanation, multiple groups of the packing 2 are arranged in the vertical direction in the housing 1. By dispersing the packing 2, the phenomenon that the packing 2 accumulates in large quantities is avoided, so as to avoid the large resistance caused by the accumulation of the packing 2 and the large pressure drop in the reactor, thereby reducing the resistance of fluid flow and improving the fluid flow rate.

[0024] Further explanation, mesh plates 21 are provided at both the upper and lower ends of the multiple packings 2; among them, the mesh plate 21 located at the upper end of the packing 2 is connected to the housing 1, and the mesh plate 21 located at the lower end of the packing 2 is slidably connected to the chute 22 opened on the inner wall of the housing 1. A certain space is reserved between the packing 2 and the mesh plate 21 located at the upper end of the packing 2. The mesh plate 21 can limit the packing 2 and provide support for the packing 2.

[0025] Further explanation, the dispersion component 3 includes an annular slide rail 31 arranged on the inner wall of the housing 1; a gear ring 32 is slidably connected in the annular slide rail 31; a plurality of fixing plates 33 are evenly arranged on the inner wall of the housing 1; a gear 34 is rotatably connected to each of the plurality of fixing plates 33; the plurality of gears 34 are all meshed with the gear ring 32, and one of the gears 34 is connected to the driving end of a driving mechanism 35 arranged on the fixing plate 33, and a connecting column 36 is further arranged on the gear 34; the driving mechanism 35 is a motor; a rotating plate 37 is arranged on each of the plurality of connecting columns 36. When the rotating plate 37 rotates, it continuously strikes the fluid, so that the fluid spreads out, expanding the contact area between the fluid and the catalyst in the packing 2, and further enabling the fluid to react fully with the catalyst, improving the catalytic efficiency. It avoids the problem that the fluid flow is too concentrated, resulting in the situation that some catalysts in the packing 2 cannot contact the fluid, thus affecting the reaction effect and causing waste of some catalysts.

[0026] Further explanation, a plurality of rotating plates 37 are evenly arranged around the connecting column 36. This can improve the striking efficiency of the rotating plate 37 on the fluid.

[0027] Embodiment 2

[0028] As Figure 4 shown, a packed bed reactor proposed by the present utility model, compared with Embodiment 1, this embodiment further includes: a plurality of sets of vibration components 4 are provided in one-to-one correspondence with the plurality of gears 34; the vibration component 4 includes a fixed block 41 arranged on the inner wall of the housing 1; a spring 42 is connected to the upper end of the fixed block 41; a connecting block 43 is connected to the upper end of the spring 42; the connecting block 43 is connected to a net plate 21 located at the lower end of the packing 2, and an extension plate 44 is further connected thereto; the upper end of the rotating plate 37 is connected to a pushing plate 45; the pushing plate 45 cooperates with the extension plate 44, and when the pushing plate 45 rotates, it pushes the extension plate 44 upward, causing the packing 2 to vibrate. On the one hand, it can make the reaction between the fluid and the catalyst more sufficient, and on the other hand, it avoids the bottom caking of the packing 2 caused by a large amount of fluid passing through the packing 2. By vibrating the packing 2 up and down, the caked packing 2 is dispersed, and further the reduction of the fluid flow rate caused by the caking of the packing 2 is avoided.

[0029] Further explanation, the upper end of the pushing plate 45 is arc-shaped; adjusting inclined surfaces are provided on both sides of the lower end of the extension plate 44. The arc-shaped surface on the pushing plate 45 cooperates with the adjusting inclined surfaces on the extension plate 44 to avoid jamming when the pushing plate 45 rotates past the extension plate 44.

[0030] The working principle of the present utility model is as follows: During operation, first, the fluid is introduced into the housing 1 from the feed port. When the fluid passes through the dispersion assembly 3, the driving mechanism 35 is started to drive the rotation of a plurality of gears 34 and the gear ring 32, thereby causing the rotation of a plurality of rotating plates 37. Further, the rotating plates 37 strike the fluid, causing the fluid to spread out, expanding the contact area between the fluid and the catalyst in the packing 2. Consequently, the fluid reacts fully with the catalyst, improving the catalytic efficiency. While the rotating plates 37 rotate, they also drive the top plate 45 to rotate. When the top plate 45 passes by the extension plate 44, it will push the extension plate 44 upward, thereby driving the screen plate 21 and the packing 2 located at the lower end of the packing 2 upward. After being lifted, the packing 2 will vibrate under the action of gravity and the spring 42. On the one hand, it can make the reaction between the fluid and the catalyst more sufficient; on the other hand, it can disperse the agglomerated packing 2, thus avoiding the reduction of the fluid flow rate caused by the agglomeration of the packing 2.

[0031] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto. Within the scope of knowledge possessed by those skilled in the art to which it pertains, various changes can be made without departing from the gist of the present utility model.

Claims

1. A packed bed reactor, characterized in that, Comprising a housing (1); a filler (2) disposed within the housing (1) for catalyzing the passing fluid; a dispersion assembly (3) disposed above the filler (2), which rotates multiple rotating plates (37) to strike the fluid, thereby dispersing the fluid; and a vibration assembly (4) disposed below the filler (2), which continuously jacks up the filler (2) during rotation of the jacking plate (45), causing the filler (2) to vibrate.

2. The packed bed reactor according to claim 1, characterized in that, Multiple groups of fillers (2) are provided in the vertical direction within the housing (1).

3. The packed bed reactor according to claim 2, wherein, Both the upper and lower ends of the multiple fillers (2) are provided with mesh plates (21); among them, the mesh plate (21) located at the upper end of the filler (2) is connected to the housing (1), and the mesh plate (21) located at the lower end of the filler (2) is slidably connected to a chute (22) provided on the inner wall of the housing (1).

4. The packed bed reactor according to claim 3, characterized in that, The dispersion assembly (3) includes an annular slide rail (31) provided on the inner wall of the housing (1); a gear ring (32) is slidably connected within the annular slide rail (31); multiple fixing plates (33) are evenly provided on the inner wall of the housing (1); a gear (34) is rotatably connected to each of the multiple fixing plates (33); the multiple gears (34) are all meshed with the gear ring (32), and one of the gears (34) is connected to the driving end of a driving mechanism (35) provided on the fixing plate (33), and a connecting column (36) is further provided on the gear (34); a rotating plate (37) is provided on each of the multiple connecting columns (36).

5. A packed bed reactor according to claim 4, characterized in that, Multiple rotating plates (37) are evenly provided around the connecting column (36).

6. The packed bed reactor according to claim 5, characterized in that, Multiple groups of vibration assemblies (4) are provided in one-to-one correspondence with the multiple gears (34); the vibration assembly (4) includes a fixing block (41) provided on the inner wall of the housing (1); a spring (42) is connected to the upper end of the fixing block (41); a connecting block (43) is connected to the upper end of the spring (42); the connecting block (43) is connected to the mesh plate (21) located at the lower end of the filler (2), and an extension plate (44) is further connected thereto; the upper end of the rotating plate (37) is connected to a jacking plate (45); the jacking plate (45) cooperates with the extension plate (44), and when the jacking plate (45) rotates, it jacks up the extension plate (44) upward, causing the filler (2) to vibrate.

7. The packed bed reactor according to claim 6, wherein The upper end of the jacking plate (45) is arc-shaped; adjusting inclined surfaces are provided on both sides of the lower end of the extension plate (44).

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