Multi-stage reaction kettle tandem type carbon dioxide preparation equipment

Abstract

The utility model discloses multistage reaction kettle tandem type carbon dioxide preparation equipment, and particularly relates to the technical field of carbon dioxide preparation, the multistage reaction kettle tandem type carbon dioxide preparation equipment comprises a plurality of reaction kettle bodies which are sequentially connected in series, and the adjacent reaction kettle bodies are communicated through connecting pipelines; a top cover is arranged at the top end of each reaction kettle body, each top cover is provided with a gas inlet and a feeding hole, the gas inlet is used for introducing raw material gas containing carbon dioxide, the feeding hole is used for adding liquid reactants required by reaction, each top cover is provided with a stirring mechanism, a bracket is arranged at the bottom of each reaction kettle body, and each bracket is provided with a stirring mechanism. And the reaction kettle body at the tail end is connected with a liquid discharge pump. Through multi-stage reaction, gas-liquid separation recovery and accurate control, the carbon dioxide conversion efficiency and the raw material utilization rate are remarkably improved, energy consumption and corrosion loss are reduced, and the device is suitable for industrial large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of carbon dioxide preparation technology, and more specifically, to a multi-stage reactor series carbon dioxide preparation device. Background Technology

[0002] In the field of carbon dioxide production technology, traditional carbon dioxide production equipment typically uses a single-stage reactor, which suffers from problems such as incomplete reaction, low carbon dioxide conversion efficiency, and insufficient raw material utilization. A single-stage reactor makes it difficult to precisely control reaction conditions, resulting in limited material mixing and a slow reaction rate. Furthermore, unreacted gaseous and liquid products cannot be effectively separated and recovered, leading to raw material waste and increased production costs.

[0003] Furthermore, the reaction process may involve corrosive reactants or products. Traditional reactors have poor corrosion resistance, making them susceptible to corrosion, which affects equipment lifespan, increases maintenance costs, and may even lead to safety hazards. Simultaneously, traditional equipment does not adequately preheat the raw gas, meaning the temperature of the raw gas entering the reactor may deviate from the optimal reaction temperature. This requires the reactor to consume more energy and time to heat up, reducing overall reaction efficiency.

[0004] Therefore, a multi-stage reactor series carbon dioxide preparation equipment is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-stage reactor series carbon dioxide preparation device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage reactor series carbon dioxide preparation device, comprising multiple reactor bodies connected in series, with adjacent reactor bodies connected by connecting pipes; each reactor body is provided with a top cover, and each top cover is provided with an air inlet and a feed inlet, the air inlet being used to introduce carbon dioxide-containing raw material gas, and the feed inlet being used to add the liquid reactants required for the reaction; each top cover is equipped with a stirring mechanism, each reactor body is provided with a support at the bottom, and the reactor body at the end is connected to a drain pump.

[0007] Preferably, the stirring mechanism includes a stirring motor, a stirring shaft, and stirring blades. The stirring motor is mounted on the top cover, the output end of the stirring motor is connected to the stirring shaft, and the stirring blades are mounted on the stirring shaft.

[0008] Preferably, a gas-liquid separation device is provided on the pipe connecting adjacent reactor bodies. The gas-liquid separation device is connected to a drain pipe and an exhaust pipe. The reactor body behind the drain pipe is connected to the exhaust pipe, and the reactor body in front of the exhaust pipe is connected to the exhaust pipe.

[0009] Preferably, the inner wall of the reactor body is provided with an anti-corrosion coating, which is one of polytetrafluoroethylene coating, ceramic coating or enamel coating.

[0010] Preferably, it also includes a preheating device, which is located on one side of the reactor body and is connected to the gas inlet by a gas supply pipe.

[0011] Preferably, a slag discharge port is provided at the bottom of the reactor body, and a valve is installed at the slag discharge port.

[0012] Preferably, a metering device is installed at the feed inlet of each reactor, and the metering device is connected to the control system signal.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. Multiple reactor bodies are connected in series, allowing the reaction to proceed step by step. The control system precisely regulates the temperature, pressure and other conditions in each reactor to achieve the optimal reaction state, promotes a more complete reaction, and significantly improves the conversion efficiency of carbon dioxide. Independent gas inlets and feed inlets facilitate precise control of the material addition to each reactor, further ensuring the completeness and efficiency of the reaction.

[0015] 2. The stirring mechanism can promote the full mixing of raw gas and liquid reactants, accelerate the reaction, and control the speed of the stirring motor according to the reaction situation, enhance the mixing effect of materials, increase the reaction rate, reduce the reaction time, and make the reaction more uniform, thereby improving the consistency of the product.

[0016] 3. A gas-liquid separation device is installed on the pipeline between adjacent reactor bodies to separate the gas-liquid mixture after the reaction. The unreacted raw material gas is returned to the previous reactor through the exhaust pipe to continue to participate in the reaction, while the liquid product is transported to the subsequent reactor. This can effectively recover unreacted raw material gas, reduce raw material consumption, and improve economic efficiency. At the same time, it can prevent unreacted gas from interfering with subsequent processing steps and ensure the smooth operation of subsequent processes.

[0017] 4. The raw material gas is preheated by a preheating device to reach a suitable reaction temperature, which accelerates the reaction initiation rate, reduces the energy and time required for heating in the reactor, improves the overall reaction efficiency, and helps to optimize reaction conditions and improve product quality. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a side view of the structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the stirring mechanism of this utility model.

[0021] The attached diagram is labeled as follows: 1. Reactor body; 2. Support frame; 3. Slag discharge port; 4. Top cover; 5. Feed inlet; 6. Air inlet; 7. Stirring mechanism; 701. Stirring motor; 702. Stirring shaft; 703. Stirring blade; 8. Gas-liquid separation device; 9. Drain pipe; 10. Exhaust pipe; 11. Preheating device; 12. Gas transmission pipe; 13. Drain pump. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] As attached Figure 1-3 The multi-stage reactor series carbon dioxide preparation equipment shown includes multiple reactor bodies 1 connected in series, with adjacent reactor bodies 1 connected by connecting pipes; each reactor body 1 is provided with a top cover 4 at its top, and each top cover 4 is provided with an air inlet 6 and a feed inlet 5. The air inlet 6 is used to introduce raw gas containing carbon dioxide, and the feed inlet 5 is used to add the liquid reactants required for the reaction. Each top cover 4 is equipped with a stirring mechanism 7, and each reactor body 1 is provided with a support 2 at its bottom. The reactor body 1 at the end is connected to a drain pump 13.

[0024] In practice, the raw gas and liquid reactants enter each reactor body 1 through the gas inlet 6 and feed inlet 5, respectively. A stirring mechanism 7 agitates the reactants within the reactor body 1, allowing for rapid reaction. Multiple reactor bodies 1 connected in series ensures a progressive reaction. A control system is installed to manage the reaction conditions within each reactor body 1. This control system is connected to the flow control devices at the gas inlet 6 and feed inlet 5 of each reactor body 1, as well as to the temperature and pressure sensors within the reactors. The control system adjusts the flow control devices and regulates the reaction conditions based on feedback from the temperature and pressure sensors to achieve optimal reaction conditions. This multi-stage series connection of reactor bodies 1 ensures a more complete reaction and improves carbon dioxide conversion efficiency. Independent gas inlets 6 and feed inlets 5 facilitate precise control of material addition to each reactor. The control system can monitor and adjust reaction conditions in real time, ensuring reaction stability and efficiency, and improving product quality and production efficiency.

[0025] The stirring mechanism 7 includes a stirring motor 701, a stirring shaft 702, and a stirring blade 703. The stirring motor 701 is mounted on the top cover 4, and the output end of the stirring motor 701 is connected to the stirring shaft 702. The stirring blade 703 is mounted on the stirring shaft 702.

[0026] In practice, the stirring motor 701 drives the stirring shaft 702 to rotate, which in turn causes the stirring blades 703 to stir the materials in the reactor body 1, promoting thorough mixing of the raw material gas and liquid reactants, accelerating the reaction. In conjunction with the control system connected to the stirring motor 701, the speed of the stirring motor 701 can be controlled according to the reaction situation. Thus, the stirring mechanism 7 can enhance the mixing effect of the materials, increase the reaction rate, reduce the reaction time, and at the same time help to make the reaction more uniform and improve the consistency of the product.

[0027] A gas-liquid separation device 8 is installed on the pipe connecting adjacent reactor bodies 1. The gas-liquid separation device 8 is connected to a drain pipe 9 and an exhaust pipe 10. The reactor body 1 behind the drain pipe 9 is connected to the reactor body 1 in front of the exhaust pipe 10.

[0028] In practical implementation, the gas-liquid separation device 8 is equipped with a pump. The gas-liquid separation device 8 separates the unreacted raw gas and the liquid products generated by the reaction. The separated raw gas flows back to the previous stage reactor body 1 through the exhaust pipe 10, while the liquid products are transported to the subsequent reactor body 1 through the drain pipe 9. Thus, the gas-liquid mixture after the reaction enters the gas-liquid separation device 8, which uses the principles of gravity and centrifugal force to separate the gas and liquid. The unreacted raw gas flows back to the reactor to continue participating in the reaction, improving the raw material utilization rate. It can be seen that the gas-liquid separation device 8 can effectively recover unreacted raw gas, reduce raw material consumption, improve economic efficiency, and at the same time avoid the unreacted gas from interfering with subsequent processing steps, ensuring the smooth operation of subsequent processes.

[0029] The inner wall of the reactor 1 is provided with an anti-corrosion coating, which is one of polytetrafluoroethylene coating, ceramic coating or enamel coating.

[0030] In practice, since the reaction process may involve corrosive reactants or products, the anti-corrosion coating can form a protective layer on the inner wall of the reactor body 1, preventing corrosive substances from contacting the metal wall of the reactor body 1, thereby protecting the reactor, improving the corrosion resistance of the reactor, extending the service life of the reactor, reducing equipment maintenance and replacement costs, and ensuring the safety and stability of the reaction process.

[0031] It also includes a preheating device 11, which is located on one side of the reactor body 1, and a gas supply pipe 12 is connected between the preheating device 11 and the gas inlet 6.

[0032] In practice, the preheating device 11 is installed on the gas inlet pipe of the raw gas entering the reactor body 1. It is used to preheat the raw gas so that it reaches a suitable reaction temperature. The preheating device 11 uses electrical energy, thermal energy or other means to heat the raw gas and raise its temperature so that it is closer to the optimal temperature required for the reaction when it enters the reactor. Therefore, preheating the raw gas can accelerate the reaction start-up rate, reduce the energy and time required for heating in the reactor, improve the overall reaction efficiency, and help optimize reaction conditions and improve product quality.

[0033] The bottom of the reactor body 1 is provided with a slag discharge port 3, and a valve is installed at the slag discharge port 3.

[0034] In practice, solid impurities or precipitates generated during the reaction will settle to the bottom of the reactor. By opening the valve at slag discharge port 3, these impurities can be discharged from the reactor. Timely discharge of solid impurities prevents their accumulation in the reactor from affecting the reaction, ensuring the cleanliness of the reaction space inside the reactor, improving reaction efficiency, and preventing impurities from damaging the internal structure and equipment of the reactor.

[0035] Each reactor body 1 is equipped with a metering device at its feed inlet 5. The metering device is connected to the control system and is used to accurately measure the amount of liquid reactants added to the reactor body 1. The metering device uses equipment such as a flow meter to measure the flow rate of the liquid reactants, thereby accurately calculating the amount of liquid added to the reactor. The metering data is fed back to the control system in real time, which can accurately measure the amount of liquid reactants, ensure that the reaction proceeds according to the predetermined ratio, improve the accuracy and stability of the reaction, reduce reaction abnormalities and product quality fluctuations caused by inaccurate material ratios, and help improve product quality and production efficiency.

[0036] 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 within the protection scope of the present utility model.

Claims

1. A multi-stage reactor-in-series carbon dioxide preparation equipment, characterized in that, The reactor includes multiple reactor bodies (1) connected in series, with adjacent reactor bodies (1) connected by connecting pipes; each reactor body (1) is provided with a top cover (4) at the top, and each top cover (4) is provided with an air inlet (6) and a feed inlet (5). The air inlet (6) is used to introduce raw material gas containing carbon dioxide, and the feed inlet (5) is used to add the liquid reactants required for the reaction. Each top cover (4) is equipped with a stirring mechanism (7), and each reactor body (1) is provided with a support (2) at the bottom. The reactor body (1) at the end is connected to a drain pump (13).

2. The multi-stage reactor series carbon dioxide preparation equipment according to claim 1, characterized in that, The stirring mechanism (7) includes a stirring motor (701), a stirring shaft (702) and a stirring blade (703). The stirring motor (701) is mounted on the top cover (4). The output end of the stirring motor (701) is connected to the stirring shaft (702). The stirring blade (703) is mounted on the stirring shaft (702).

3. The multi-stage reactor series carbon dioxide preparation equipment according to claim 1, characterized in that, A gas-liquid separation device (8) is provided on the pipe connecting the adjacent reactor bodies (1). The gas-liquid separation device (8) is connected to a drain pipe (9) and an exhaust pipe (10). The drain pipe (9) is connected to the reactor body (1) behind it, and the exhaust pipe (10) is connected to the reactor body (1) in front of it.

4. The multi-stage reactor series carbon dioxide preparation equipment according to claim 1, characterized in that, The inner wall of the reactor body (1) is provided with an anti-corrosion coating, which is one of polytetrafluoroethylene coating, ceramic coating or enamel coating.

5. The multi-stage reactor series carbon dioxide preparation equipment according to claim 1, characterized in that, It also includes a preheating device (11), which is located on one side of the reactor body (1), and a gas supply pipe (12) is connected between the preheating device (11) and the gas inlet (6).

6. The multi-stage reactor series carbon dioxide preparation equipment according to claim 1, characterized in that, The bottom of the reactor body (1) is provided with a slag discharge port (3), and a valve is installed at the slag discharge port (3).

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