Hydrogen peroxide hydrogenation reaction device

Abstract

The utility model discloses a hydrogen peroxide hydrogenation reaction device which comprises a reaction kettle, a gas inlet assembly is installed in the reaction kettle, the gas inlet assembly comprises a gas inlet pipe rotationally connected with the interior of the reaction kettle, one end of the top of the gas inlet pipe penetrates through the reaction kettle and extends outwards, and one end of the bottom of the gas inlet pipe is fixedly sleeved with a horizontally-arranged exhaust pipe. A plurality of air outlets distributed at equal intervals are formed in the outer wall of the bottom of the exhaust pipe, a rotary joint is installed at one end of the top of the air inlet pipe and fixed to the top of the reaction kettle through a supporting plate, and a motor is fixedly installed on the outer wall of the top of the reaction kettle. By accurately controlling the dispersion mode and flow velocity of the gas, the gas forms a uniform concentration gradient in the solution, so that the gas at each position can be in full contact with the solution and participates in reaction, and local accumulation and waste of the gas are effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen peroxide production technical field, concretely is a hydrogen peroxide hydrogenation reaction device. BACKGROUND

[0002] Hydrogen peroxide is an important inorganic chemical raw material, and is widely used in bleaching, disinfection, oxidation reaction and other fields. The industrial production of hydrogen peroxide is mainly realized through hydrogenation reaction, that is, hydrogen and oxygen are reacted to generate hydrogen peroxide under the action of catalyst.

[0003] Through retrieval, the utility model of patent announcement number CN216137200U discloses a kind of hydrogenation reaction for stirring feeding device of hydrogen peroxide production, stirring feeding device is used in cooperation with hydrogenation reactor, stirring feeding device includes first liquid inlet pipe, second liquid inlet pipe, gas inlet pipe and stirrer, stirrer is located in hydrogenation reactor interior, hydrogenation reactor is equipped with working liquid import end and hydrogen import end, working liquid import end is connected with the first liquid inlet pipe in hydrogenation reactor and is communicated.

[0004] The above device realizes the supply of gas through gas inlet pipe, but the position of its gas outlet hole is fixed, and the contact area with the material is insufficient, which will lead to insufficient utilization of gas, and it needs longer time to complete production, so there is room for improvement. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of hydrogen peroxide hydrogenation reaction device to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of hydrogen peroxide hydrogenation reaction device, including reaction kettle, the reaction kettle interior is installed with gas inlet component, the gas inlet component includes the gas inlet pipe that rotates and connects in reaction kettle interior, and the top one end of gas inlet pipe passes through reaction kettle and extends outward, the bottom one end of gas inlet pipe is fixedly provided with the exhaust pipe that is horizontally arranged, the bottom outer wall of exhaust pipe is provided with a plurality of equidistant distribution gas outlets, the top one end of gas inlet pipe is installed with swivel joint, and the swivel joint is fixed on the top of reaction kettle by support plate.

[0007] As a further preferred embodiment of the present technical solution, the top outer wall of the reaction kettle is fixedly installed with a motor, the output end of the motor is coaxially fixed with a gear, and the top circumferential outer wall of the gas inlet pipe is coaxially fixed with a gear ring, and the gear is engaged with the gear ring.

[0008] By precisely controlling the dispersion mode and flow rate of the gas, a uniform concentration gradient of the gas in the solution is formed, ensuring that the gas can fully contact the solution and participate in the reaction everywhere, effectively avoiding local accumulation and waste of the gas, the gas enters the inside of the gas inlet pipe through the rotating joint, and then flows downward through the openings at the bottom of the gas outlet pipe, the gas inlet pipe can rotate due to the presence of the rotating joint, at the same time, the motor at the top of the reaction kettle is started, the motor drives the gear to start rotating, the gear drives the gear ring to rotate through meshing, the gear ring drives the gas inlet pipe to rotate in the reaction kettle, and then the gas discharged from the bottom of the gas outlet pipe is also uniformly distributed in the solution, effectively avoiding local accumulation of the gas.

[0009] As a further preferred embodiment of the present application, a stirring assembly is installed inside the reaction kettle, which comprises three spiral rods rotatably connected inside the reaction kettle, and the three spiral rods are equally distributed outside the gas inlet pipe.

[0010] As a further preferred embodiment of the present application, a pulley is coaxially fixed to the top of the gear and the top of the three spiral rods, and the same belt is sleeved on the adjacent two pulleys.

[0011] When the motor is started, the pulley at the top is driven to rotate synchronously, and the pulley drives the other pulleys to rotate synchronously through the connected belt, and the spiral rods are driven to rotate synchronously, and the spiral rods impact the solution downward, so that the catalyst can be dispersed in the solution, effectively avoiding the accumulation of the catalyst.

[0012] As a further preferred embodiment of the present application, a feeding port and a spring safety valve are arranged at the top of the reaction kettle, a liquid inlet is arranged on the side wall of the reaction kettle, and a discharge port is arranged at the bottom of the reaction kettle, and an electromagnetic valve is arranged inside the feeding port, the liquid inlet and the discharge port.

[0013] As a further preferred embodiment of the present application, a mesh is fixed inside each gas outlet at the bottom of the gas outlet pipe.

[0014] As a further preferred embodiment of the present application, the mesh is made of stainless steel material.

[0015] The hydrogen peroxide hydrogenation reaction device has the following advantages:

[0016] (1)The utility model discloses a gas inlet assembly is set up, through the accurate control gas dispersion mode and flow rate, make the gas form the even concentration gradient in solution, guarantee every place gas can fully contact with solution and participate in the reaction, effectively avoid the local accumulation and waste of gas, and the gas enters the inside of gas inlet pipe through the swivel joint, and then flows down through the opening at the bottom of exhaust pipe, and the gas inlet pipe can rotate because of the existence of swivel joint, simultaneously, the motor at the top of reaction kettle is started, and the motor driving gear starts rotating, and the gear drives the gear ring to rotate through the meshing, and the gear ring drives the gas inlet pipe to rotate in the inside of reaction kettle, and then the gas discharged from the bottom of exhaust pipe can also be evenly distributed in solution, effectively avoiding the local accumulation of gas.

[0017] (2)The utility model discloses a stirring assembly is set up, when the motor starts, the top of its pulley is driven to rotate synchronously, and the pulley drives the other pulleys to rotate synchronously through the matched belt, and the helical rod can be driven to rotate synchronously, and the helical rod can drive the solution to impact downwards, so that the catalyst can be impacted and dispersed in solution, effectively avoiding the accumulation of catalyst to cause insufficient utilization. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the local enlarged first visual angle structure schematic diagram of the utility model;

[0020] Figure 3 It is the local enlarged second visual angle structure schematic diagram of the utility model;

[0021] Figure 4 It is the Figure 3 Enlarged structure schematic diagram of A place in the utility model;

[0022] In the drawing: 1, reaction kettle;2, feed inlet;3, liquid inlet;4, discharge port;5, spring safety valve;6, gas inlet assembly;7, stirring assembly;601, gas inlet pipe;602, exhaust pipe;603, motor;604, gear;605, gear ring;606, mesh;607, swivel joint;701, helical rod;702, pulley;703, belt. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model.

[0024] The utility model provides technical scheme: as Figure 2 、 Figure 3 And Figure 4As shown, in this embodiment, a hydrogen peroxide hydrogenation reaction device, comprising a reaction kettle 1, a gas inlet assembly 6 is installed inside the reaction kettle 1, the gas inlet assembly 6 comprises a gas inlet pipe 601 rotatably connected inside the reaction kettle 1, and one end of the top of the gas inlet pipe 601 penetrates through the reaction kettle 1 and extends outward, a gas outlet pipe 602 is fixedly sleeved at the bottom of the gas inlet pipe 601, and the gas outlet pipe 602 is horizontally arranged, a plurality of gas outlets are arranged on the outer wall of the bottom of the gas outlet pipe 602, a rotary joint 607 is installed at one end of the top of the gas inlet pipe 601, and the rotary joint 607 is fixed to the top of the reaction kettle 1 through a support plate.

[0025] A motor 603 is fixedly installed on the outer wall of the top of the reaction kettle 1, a gear 604 is coaxially fixed to the output end of the motor 603, and a gear ring 605 is coaxially fixed to the circumferential outer wall of the top of the gas inlet pipe 601. The gear 604 is engaged with the gear ring 605.

[0026] The gas enters the inside of the gas inlet pipe 601 through the rotary joint 607, and then flows downward through the opening at the bottom of the gas outlet pipe 602. The gas inlet pipe 601 can rotate due to the presence of the rotary joint 607. At the same time, the motor 603 at the top of the reaction kettle 1 is started, and the motor 603 drives the gear 604 to start rotating. The gear 604 drives the gear ring 605 to rotate through engagement, and the gear ring 605 drives the gas inlet pipe 601 to rotate inside the reaction kettle 1. In this way, the gas discharged from the bottom of the gas outlet pipe 602 is also uniformly distributed in the solution, effectively avoiding local accumulation of the gas.

[0027] As shown in Figure 3 and Figure 4 A stirring assembly 7 is installed inside the reaction kettle 1, the stirring assembly 7 comprises three screw rods 701 rotatably connected inside the reaction kettle 1, and the three screw rods 701 are evenly distributed outside the gas inlet pipe 601.

[0028] A pulley 702 is coaxially fixed to the top of the gear 604 and the top of each of the three screw rods 701, and the same belt 703 is sleeved on adjacent two pulleys 702.

[0029] When the motor 603 is started, the pulley 702 at the top of the motor 603 is driven to rotate synchronously. The pulley 702 drives the other pulleys 702 to rotate synchronously through the connected belt 703, and the other screw rods 701 are driven to rotate synchronously. The screw rod 701 drives the solution to impact downward, so that the catalyst can be dispersed in the solution, effectively avoiding the accumulation of the catalyst to cause insufficient utilization.

[0030] As shown in Figure 1 and Figure 2As shown, the top of the reactor 1 is provided with a feed inlet 2 and spring safety valve 5, so that the gas pressure inside the reactor 1 reaches a certain degree can be automatically discharged, to avoid excessive pressure, the side wall of the reactor 1 is provided with liquid inlet 3, the bottom of the reactor 1 is provided with discharge port 4, the feed inlet 2, liquid inlet 3 and discharge port 4 are all installed with solenoid valve, close the solenoid valve of feed inlet 2, liquid inlet 3 and discharge port 4, with the subsequent gas into, can increase the pressure inside the reactor 1, for the reaction efficiency to provide conditions, increase the pressure generally will improve the concentration of reactant molecules, make the collision frequency between molecules increases, thereby speeding up the reaction rate.

[0031] As shown in Figure 2 Each bottom gas outlet of the exhaust pipe 602 is fixed with a mesh 606, and a large number of small bubbles are formed when the gas is sprayed outward through the mesh 606, so that the contact area of the gas and the solution is larger, and the utilization rate can be further improved.

[0032] As shown in Figure 2 The mesh 606 is made of stainless steel material, and the stainless steel cannot react with the reaction raw materials, so that the mesh does not affect the reaction.

[0033] The utility model provides a kind of hydrogenation reaction device of hydrogen peroxide, specific working principle as follows:

[0034] When the device works, firstly, the anthraquinone solution is filled into the reaction kettle 1 through the liquid inlet 3, then the catalyst is put into the reaction kettle 1 through the feed inlet 2, finally, the electromagnetic valves of the feed inlet 2, the liquid inlet 3 and the discharge port 4 are closed, along with the subsequent gas being input, the pressure inside the reaction kettle 1 can be increased, which provides conditions for improving the reaction efficiency, then hydrogen gas is input to react to generate hydrogen anthraquinone, then oxygen gas is input to generate hydrogen peroxide and regenerate anthraquinone, in the process of inputting the gas, in order to ensure the uniform distribution of the gas in the solution, the device is also designed as follows: the gas enters the gas inlet pipe 601 inside through the rotary joint 607, then flows downward through the opening at the bottom of the gas outlet pipe 602, the gas inlet pipe 601 can rotate due to the existence of the rotary joint 607, at the same time, the motor 603 at the top of the reaction kettle 1 is started, the motor 603 drives the gear 604 to start rotating, the gear 604 drives the gear ring 605 to rotate through meshing, the gear ring 605 drives the gas inlet pipe 601 to rotate inside the reaction kettle 1, and then the gas discharged from the bottom of the gas outlet pipe 602 is also uniformly distributed in the solution, which effectively avoids the local accumulation of the gas, when the gas is sprayed outwards through the mesh 606, a large number of small bubbles are formed, which can further improve the utilization rate, when the motor 603 is started, the top of the motor 603 is driven to rotate synchronously, the pulley 702 at the top of the motor 603 drives the other pulleys 702 to rotate synchronously through the connecting belt 703, and then the other screw rods 701 are driven to rotate synchronously, and the screw rods 701 can drive the solution to impact downward, so that the catalyst can be impacted and dispersed in the solution, which effectively avoids the accumulation of the catalyst to cause insufficient utilization.

[0035] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hydrogen peroxide hydrogenation reaction device comprising a reaction kettle (1), characterized in that: The inside of the reaction kettle (1) is internally provided with an air inlet assembly (6), the air inlet assembly (6) comprises an air inlet pipe (601) which is rotatably connected inside the reaction kettle (1), and one end of the top of the air inlet pipe (601) penetrates through the reaction kettle (1) and extends outward, the bottom end of the air inlet pipe (601) is fixedly sleeved with a horizontally arranged exhaust pipe (602), the bottom outer wall of the exhaust pipe (602) is provided with a plurality of equidistantly distributed air outlets, the top end of the air inlet pipe (601) is provided with a rotary joint (607), and the rotary joint (607) is fixed on the top of the reaction kettle (1) through a support plate.

2. The hydrogen peroxide hydrogenation reaction device according to claim 1, characterized by: The top outer wall of the reaction kettle (1) is fixedly provided with a motor (603), the output end of the motor (603) is coaxially fixed with a gear (604), the circumferential outer wall of the top of the air inlet pipe (601) is coaxially fixed with a toothed ring (605), and the gear (604) is engaged with the toothed ring (605).

3. The hydrogenation reactor of claim 1, wherein: The inside of the reaction kettle (1) is internally provided with a stirring assembly (7), the stirring assembly (7) comprises three screw rods (701) which are rotatably connected inside the reaction kettle (1), and the three screw rods (701) are equidistantly distributed outside the air inlet pipe (601).

4. The hydrogen peroxide hydrogenation reaction apparatus according to claim 2, wherein: The top of the gear (604) and the top of the three screw rods (701) are coaxially fixed with a belt pulley (702), and adjacent two belt pulleys (702) are sleeved with the same belt (703).

5. The hydrogen peroxide hydrogenation reaction apparatus according to claim 1, characterized by: The top of the reaction kettle (1) is provided with a feeding port (2) and a spring safety valve (5), the side wall of the reaction kettle (1) is provided with a liquid inlet (3), and the bottom of the reaction kettle (1) is provided with a discharge port (4), and the inside of the feeding port (2), the liquid inlet (3) and the discharge port (4) are all internally provided with an electromagnetic valve.

6. The hydrogen peroxide hydrogenation reaction apparatus according to claim 1, characterized by: The bottom of the exhaust pipe (602) is internally provided with a mesh (606).

7. The hydrogen peroxide hydrogenation reaction apparatus according to claim 6, characterized by: The mesh (606) is made of stainless steel material.

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