Pressure-resistant reaction kettle in hydrogenation reduction reaction

Abstract

The utility model provides a pressure-resistant reaction kettle in hydrogenation reduction reaction, which belongs to the field of chemical production and comprises a reduction reaction hydrogenation mixing component, a reaction kettle and a reaction kettle, the reduction reaction hydrogenation mixing assembly comprises a sleeve penetrating through the upper cover and rotationally connected with the upper cover, a hydrogenation pipe is rotationally installed at the upper end of the vertical pipe, a rotating pipe is fixed to the bottom of the vertical pipe, a plurality of spraying holes are formed in the upper end of the rotating pipe in a penetrating mode, the vertical pipe is rotationally connected with a short pipe, and the short pipe is fixedly connected with the sleeve; a plurality of stirring blades are fixed on the short pipe, and a driving mechanism for driving the casing pipe and the vertical pipe to rotate in opposite directions is mounted on the upper cover. According to the device disclosed by the utility model, the sprayed hydrogen is sprayed out from the interior of acetaldehyde and is spiral, so that the contact area with the acetaldehyde can be increased, when the hydrogen passes through the porous or net-shaped stirring blades, the bubble-shaped hydrogen is crushed and dispersed, the contact area with the acetaldehyde is further increased, the moving path of the hydrogen can be changed, and the hydrogen and the acetaldehyde are mixed for reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to a pressure-resistant reactor in a hydrogenation reduction reaction. Background Art

[0002] The prior art publication number is CN207655111U, which is a pressure-resistant reactor for hydrogenation reduction reaction. A reactor cover is sealed and fixed on the top of the reactor body by flange bolts, a stirring motor is installed on the top of the motor frame, the reducer output shaft is connected to the coupling, and a stirring blade is fixed at the bottom of the stirring shaft; the left air inlet pipe and the right air inlet pipe penetrate the reactor body and extend to the bottom of the reactor body, and a plurality of air outlet nozzles are evenly spaced on one side of the left air inlet pipe and the right air inlet pipe; a communication cable is arranged inside the cable trough, and the ends of the communication cable are respectively connected to sensor components via sealing devices.

[0003] Since the air density is small and is located on the upper side, only the hydrogen in contact with the material to be reduced can effectively participate in the reaction, especially the material to be reduced located in the middle cannot effectively contact with the hydrogen, resulting in a decrease in the reduction efficiency of the material to be reduced; for this reason, the present application proposes a pressure-resistant reactor for hydrogenation reduction reactions. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pressure-resistant reactor for hydrogenation reduction reaction.

[0005] The embodiment of the utility model provides a pressure-resistant reactor for hydrogenation reduction reaction, comprising:

[0006] A reaction kettle, wherein an upper cover is installed at the upper end of the reaction kettle;

[0007] A reduction reaction hydrogenation mixing component; the reduction reaction hydrogenation mixing component comprises a sleeve penetrating the upper cover and rotatably connected thereto, a vertical pipe rotatably connected inside the sleeve, a hydrogenation pipe rotatably mounted on the upper end of the vertical pipe, a rotating pipe fixed to the bottom of the vertical pipe, a plurality of spray holes penetrating the upper end of the rotating pipe, a short pipe rotatably connected to the vertical pipe, the short pipe being fixedly connected to the sleeve, a plurality of stirring blades being fixed on the short pipe, and a driving mechanism driving the sleeve and the vertical pipe to rotate in opposite directions is mounted on the upper cover.

[0008] Furthermore, a feeding port is provided through the upper end of the upper cover, and the feeding port is sealed by a sealing plug.

[0009] Furthermore, a discharge pipe is installed on the reactor, and a valve is installed on the discharge pipe.

[0010] Furthermore, the driving mechanism includes a mounting plate fixed on the upper cover, a motor is fixedly mounted on the mounting plate, a first bevel gear is fixedly connected to the output end of the motor, a second bevel gear is mounted on the sleeve and the vertical pipe, and the first bevel gear is meshed with two second bevel gears.

[0011] Furthermore, a rotary joint is fixedly connected to the upper end of the vertical pipe, and the hydrogenation pipe is fixedly connected to the rotary joint.

[0012] Furthermore, the stirring blade is provided with multiple holes or is in the shape of a mesh plate.

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

[0014] The utility model makes the hydrogen gas ejected from the inside of acetaldehyde in a spiral shape, which can increase the contact surface with acetaldehyde. When the hydrogen gas passes through the porous or mesh stirring blades, the bubble-shaped hydrogen gas is broken and dispersed, which further increases the contact area with acetaldehyde, and can change the moving path of the hydrogen gas, so that the hydrogen gas and acetaldehyde are mixed for reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a pressure-resistant reactor in a hydrogenation reduction reaction described in an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of a casing in a pressure-resistant reactor in a hydrogenation reduction reaction described in an embodiment of the utility model.

[0017] Figure 3 It is a schematic diagram of a stirring blade in a pressure-resistant reactor in a hydrogenation reduction reaction described in an embodiment of the utility model.

[0018] In the above drawings: 1 reactor, 2 upper cover, 3 discharge pipe, 4 feeding port, 5 mounting plate, 6 motor, 7 first bevel gear, 8 second bevel gear, 9 hydrogenation pipe, 10 rotary joint, 11 vertical pipe, 12 sleeve, 13 rotating pipe, 14 spray hole, 15 short pipe, 16 stirring blade. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1-Figure 3 As shown, the embodiment of the utility model proposes a pressure-resistant reactor for hydrogenation reduction reaction, comprising:

[0021] A reactor 1 is provided with a discharge pipe 3, and a valve is provided on the discharge pipe 3; an upper cover 2 is provided on the upper end of the reactor 1, and a feeding port 4 is provided through the upper end of the upper cover 2, and the feeding port 4 is sealed by a sealing plug, and a pressure relief valve or the like can be provided on the upper cover 2 to ensure that the pressure in the reactor 1 is within a safe range;

[0022] Reduction reaction hydrogenation mixing assembly; the reduction reaction hydrogenation mixing assembly comprises a sleeve 12 penetrating the upper cover 2 and rotatably connected thereto, a vertical pipe 11 is rotatably connected inside the sleeve 12, and a check valve is installed on the vertical pipe 11 to prevent acetaldehyde from flowing back; a hydrogenation pipe 9 is rotatably installed on the upper end of the vertical pipe 11, a rotary joint 10 is fixedly connected to the upper end of the vertical pipe 11, the hydrogenation pipe 9 is fixedly connected to the rotary joint 10, and the rotation between the vertical pipe 11 and the hydrogenation pipe 9 is realized through the rotary joint 10, and the transportation of hydrogen is not affected;

[0023] A rotating tube 13 is fixed at the bottom of the vertical tube 11, and a plurality of spray holes 14 are penetrated at the upper end of the rotating tube 13. A short tube 15 is rotatably connected to the vertical tube 11, and the short tube 15 is fixedly connected to the sleeve 12. A plurality of stirring blades 16 are fixed on the short tube 15. The stirring blades 16 are porous or mesh-shaped, so that the upstream hydrogen can be dispersed.

[0024] A driving mechanism with a driving sleeve 12 and a vertical pipe 11 rotating in opposite directions is installed on the upper cover 2. The driving mechanism includes a mounting plate 5 fixed on the upper cover 2, a motor 6 is fixedly installed on the mounting plate 5, a first bevel gear 7 is fixedly connected to the output end of the motor 6, a second bevel gear 8 is installed on the sleeve 12 and the vertical pipe 11, and the first bevel gear 7 is meshed with the two second bevel gears 8.

[0025] The detailed working process of the utility model is as follows:

[0026] 1. When in use, acetaldehyde is added into the reactor 1 through the feed port 4, and then the feed port 4 is sealed; the hydrogen supply pipe is connected to the hydrogenation pipe 9, and then the motor 6 is started. The motor 6 drives the first bevel gear 7 to rotate, thereby realizing the rotation of the two second bevel gears 8. The rotation of the two second bevel gears 8 drives the vertical pipe 11 and the sleeve 12 to rotate in opposite directions. The hydrogen is transported to the rotating pipe 13 through the hydrogenation pipe 9 and the vertical pipe 11, and finally sprayed out through the spray hole 14. The rotation of the vertical pipe 11 drives the rotating pipe 13 to rotate, so that the sprayed hydrogen is sprayed from the inside of the acetaldehyde and is spiral, which can increase the contact area with the acetaldehyde, so that the acetaldehyde can be reduced;

[0027] 2. The rotation of the sleeve 12 drives the short tube 15 and the stirring blade 16 to rotate. The rotating tube 13 and the stirring blade 16 can stir the acetaldehyde to mix it with the hydrogen. When the hydrogen passes through the porous or mesh stirring blade 16, the bubble-like hydrogen is broken and dispersed, further increasing the contact area with the acetaldehyde, and can change the movement path of the hydrogen, so that the hydrogen and acetaldehyde are mixed for reduction.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pressure-resistant reactor for hydrogenation reduction reaction, characterized in that: include: A reaction kettle (1), wherein an upper cover (2) is installed at the upper end of the reaction kettle (1); A reduction reaction hydrogenation mixing component; the reduction reaction hydrogenation mixing component comprises a sleeve (12) penetrating an upper cover (2) and rotatably connected thereto, a vertical pipe (11) being rotatably connected inside the sleeve (12), a hydrogenation pipe (9) being rotatably mounted on the upper end of the vertical pipe (11), a rotating pipe (13) being fixed at the bottom of the vertical pipe (11), a plurality of spray holes (14) being penetrated at the upper end of the rotating pipe (13), a short pipe (15) being rotatably connected to the vertical pipe (11), the short pipe (15) being fixedly connected to the sleeve (12), a plurality of stirring blades (16) being fixed on the short pipe (15), and a driving mechanism for driving the sleeve (12) and the vertical pipe (11) to rotate in opposite directions is mounted on the upper cover (2).

2. The pressure-resistant reactor for hydrogenation reduction reaction according to claim 1, characterized in that: in: A feeding port (4) is provided through the upper end of the upper cover (2), and the feeding port (4) is sealed by a sealing plug.

3. The pressure-resistant reactor for hydrogenation reduction reaction according to claim 1, characterized in that: in: The reactor (1) is provided with a discharge pipe (3), and the discharge pipe (3) is provided with a valve.

4. The pressure-resistant reactor for hydrogenation reduction reaction according to claim 1, characterized in that: in: The driving mechanism comprises a mounting plate (5) fixed on the upper cover (2), a motor (6) being fixedly mounted on the mounting plate (5), a first bevel gear (7) being fixedly connected to the output end of the motor (6), second bevel gears (8) being mounted on the sleeve (12) and the vertical pipe (11), and the first bevel gear (7) being meshed with two second bevel gears (8).

5. The pressure-resistant reactor for hydrogenation reduction reaction according to claim 1, characterized in that: in: The upper end of the vertical pipe (11) is fixedly connected to a rotary joint (10), and the hydrogenation pipe (9) is fixedly connected to the rotary joint (10).

6. The pressure-resistant reactor for hydrogenation reduction reaction according to claim 1, characterized in that: in: The stirring blade (16) is arranged in a porous shape or the stirring blade (16) is in a mesh plate shape.

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