A carbon dioxide capture material precursor stirring apparatus

Abstract

This invention discloses a carbon dioxide capture material precursor stirring device, belonging to the field of stirring technology. It includes a heating tank with a first stirring shaft inside. A connecting arm is radially mounted on the first stirring shaft, and a second stirring shaft is rotatably connected to the connecting arm. The first and second stirring shafts are arranged parallel to each other and drive synchronously. A cleaning component adapted to the inner wall of the heating tank is located at the end of the connecting arm away from the first stirring shaft. The cleaning component includes a connecting plate and a cleaning pipeline. The connecting plate is fixedly connected to the connecting arm, and the cleaning pipeline is located within the first stirring shaft and the connecting arm, exiting from the connecting plate. The first and second stirring shafts are arranged parallel to each other inside the heating tank, achieving dual-shaft stirring. The eccentric arrangement of the second stirring shaft increases the stirring range and improves the stirring effect. The cleaning component is also mounted on the stirring shaft. During the rotation of the stirring shaft, the cleaning component rotates, thereby further stirring the cleaning fluid during the cleaning process and improving the cleaning effect.

Description

Technical Field

[0001] This invention relates to a mixing device, and more specifically, to a mixing device for a carbon dioxide capture material precursor. Background Technology

[0002] With the increasing severity of global climate change, direct air capture technology has attracted widespread attention due to its potential for negative emissions. Among these technologies, membrane separation-based capture technology has become an important technological approach due to its relatively low energy consumption and compact equipment. The core of this technology lies in high-performance gas separation membranes, the performance of which directly depends on the microstructure and chemical properties of the polymer materials constituting the membrane. Currently, the precursors used for carbon dioxide capture membrane materials are mainly casting solutions. This system is composed of resin powder, carrier powder, and solvent mixed in a specific ratio under heating conditions. The preparation process requires stirring the mixture within a temperature range of 70-100℃ to partially or completely dissolve the resin and highly disperse the carrier powder, ultimately forming a casting solution with a certain viscosity and highly uniform chemical composition and particle distribution.

[0003] Currently, most mixing equipment used for precursors of air carbon dioxide capture materials employs traditional single-shaft mixing or simple anchor mixing, which can only achieve the single rotational motion of the mixing paddle. This makes it difficult to create a three-dimensional shear flow field for viscous casting liquids, and dead zones are easily generated in the tank cavity, leading to agglomeration of the carrier powder. In addition, the cleaning system of the equipment requires an additional independent power source and often uses a single mechanical scraping or high-pressure flushing method, lacking synergy. This results in poor cleaning effect on high-viscosity precursor residues. The mixing and cleaning functions often rely on multiple motors to drive them separately, requiring two independent power systems and control units for mixing and cleaning, resulting in complex equipment structure and large space occupation.

[0004] For example, Chinese patent application CN202321472509.7 discloses a stirring device for synthesizing ternary precursors, including a stirring tank. A drive motor for rotating a stirring shaft is fixedly installed above the stirring tank. A guide tube is installed on the stirring shaft. Several turbine stirring blades capable of rotating within the guide tube are spaced apart along the axial direction of the stirring shaft. A stirring shaft measuring device is installed on the stirring shaft, and a stirring tank measuring device is installed on the stirring tank. This device can acquire the spatial distribution and variation patterns of pH, temperature, and solid content. The measured data are analyzed by a computer, thus optimizing the synthesis process and preparing ternary precursors with controllable structure and excellent performance. However, this stirring device can only achieve single-shaft stirring, making it difficult to uniformly stir the precursors in the stirring tank. In addition, the device lacks suitable cleaning equipment, increasing the difficulty of cleaning. Summary of the Invention

[0005] This invention overcomes the problem of uneven mixing in existing precursor mixing equipment and provides a carbon dioxide capture material precursor mixing equipment. This solution adopts biaxial mixing, which covers a large area of ​​the mixing zone inside the heating tube by combining central and eccentric mixing, thereby achieving full-area, efficient shearing and mixing of the casting liquid.

[0006] Another objective of this invention is to overcome the problem of difficult cleaning of existing precursor mixing equipment by combining the cleaning components with the mixing shaft, which not only reduces the arrangement of power sources but also improves the convenience of cleaning work.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a carbon dioxide capture material precursor stirring device, including a heating tank, a first stirring shaft is provided inside the heating tank, a connecting arm is radially provided on the first stirring shaft, a second stirring shaft is rotatably connected to the connecting arm, the first stirring shaft and the second stirring shaft are arranged parallel to each other and are connected by a transmission wheel set, a cleaning component adapted to the inner wall of the heating tank is provided at the end of the connecting arm away from the first stirring shaft; the cleaning component includes a connecting plate and a cleaning pipe, the connecting plate is fixedly connected to the connecting arm, the cleaning pipe is located inside the first stirring shaft and the connecting arm and outputs from the connecting plate. In this solution, the first stirring shaft and the second stirring shaft are arranged parallel to each other inside the heating tank to achieve dual-shaft stirring, and the eccentric arrangement of the second stirring shaft can increase the stirring range and improve the stirring effect; the cleaning component is also provided on the stirring shaft, and the stirring shaft will also drive the cleaning component to rotate during the rotation of the stirring shaft, that is, during the cleaning process, the cleaning liquid can also be stirred by the stirring shaft, thereby improving the cleaning effect.

[0008] Preferably, the tops of the first and second stirring shafts are connected by a transmission wheel assembly. The transmission wheel assembly includes a first transmission gear, a second transmission gear, and an external gear ring. The first transmission gear is fixedly connected to the first stirring shaft; the second transmission gear is fixedly connected to the second stirring shaft and meshes with the first transmission gear; the external gear ring meshes with the second transmission gear; and the first and second transmission gears are located radially inside the external gear ring. The transmission wheel assembly is a planetary gear structure. The first transmission gear drives the second transmission gear to rotate, and simultaneously, the second transmission gear meshes with the external gear ring. This means the second stirring shaft not only rotates on its own axis but also revolves around the first stirring shaft, thus providing a larger stirring range and reducing the occurrence of dead zones.

[0009] Preferably, the first stirring shaft is provided with a first stirring blade assembly, and the second stirring shaft is provided with several sets of spaced-apart second stirring blades along the axial direction. The position of the first stirring blade assembly is lower than the position of the second stirring blades. The first stirring blade assembly and the second stirring blades are used to stir the material in the heating tank. The first stirring blade assembly is located at the center of the heating tank and is lower than the second stirring blades, while the second stirring blades are eccentrically arranged in the heating tank and are higher than the first stirring blade assembly. The two sets of blades are staggered, which not only avoids mutual interference but also increases the stirring range in the heating tank and reduces dead zones.

[0010] Preferably, the first stirring blade assembly includes a mounting block, with a plurality of radially distributed mounting seats spaced circumferentially on the mounting block, and the first stirring blades are disposed within the mounting seats. The mounting block provides mounting space for the first stirring blades, which are used to stir the materials in the heating tank.

[0011] Preferably, the first stirring blade and the mounting base are provided with elastic elements, and the first stirring blade is elastically connected to the mounting base in a radial direction. When the first stirring shaft rotates, the first stirring blade itself has centrifugal force. Since the first stirring blade and the mounting base are elastically connected, the first stirring blade will extend radially, increasing the stirring range of the first stirring blade, thereby improving the stirring effect.

[0012] Preferably, the connecting plate has several spaced nozzles along its length, which are connected to the cleaning pipe and face the inner wall of the heating tank. The length of the connecting plate is the same as the height of the heating tank, and the nozzles are arranged along the height of the heating tank, thus covering the entire cleaning area of ​​the inner wall of the heating tank and improving the cleaning effect.

[0013] Preferably, scrapers are provided on the connecting plate on both sides of the nozzle, and the scrapers are in contact with the inner wall of the heating tank. The scrapers can mechanically scrape the inner wall of the heating tank, and the nozzle is located between the two scrapers. When the nozzle sprays cleaning fluid, it can form a water film on the scrapers and the inner wall of the heating tank, thereby improving the cleaning effect of the heating tank.

[0014] Preferably, the heating tank is equipped with a cover plate, and a drive device is mounted on the cover plate. A first stirring shaft passes through the cover plate and is connected to the output end of the drive device. The cover plate provides installation space for the drive device, which is used to drive the first stirring shaft to rotate.

[0015] Preferably, a water supply assembly is also included, comprising a turbine pump and an inlet pipe. The drive shaft of the turbine pump is connected to the output end of the drive unit via a transmission belt; the inlet pipe connects to the inlet end of the turbine pump; and the outlet end of the turbine pump is connected to the cleaning pipe. The water supply assembly introduces cleaning fluid into the heating tank through the turbine pump. The turbine pump and the drive unit share a common power source, which reduces the use of power units and lowers equipment costs.

[0016] Preferably, the cover plate is also provided with a feeding port, which is connected to a feed pipe. The feed pipe can be used to feed the precursor preparation materials into the heating tank.

[0017] Compared with the prior art, the beneficial effects of the present invention are: (1) The first stirring shaft and the turbine pump are driven synchronously by a motor; this design enables the stirring shaft to complete its rotation while revolving around the axis, realizing the full-range, efficient shearing and mixing of high-viscosity casting liquid; at the same time, the water pump linked by the motor delivers the external cleaning medium to the rotating nozzle fixed on the connecting arm, and the coaxially linked scraper mechanically scrapes the inner wall of the tank; thus, the equipment realizes the homogenization stirring of materials and the online self-cleaning of the reaction tank under a single power source, improving production efficiency. (2) The bottom of the first stirring shaft is equipped with a retractable mechanism with a spring reset mechanism, which can adaptively extend and retract radially according to the magnitude of the centrifugal force generated by the stirring shaft speed; when rotating at high speed, it overcomes the spring resistance and slides outward under the action of centrifugal force, dynamically increasing the stirring diameter and shearing range, significantly improving the dispersion efficiency of high-viscosity materials; when the speed decreases or stops, the spring pushes to automatically retract, effectively reducing the starting resistance and operating energy consumption. Attached Figure Description

[0018] Figure 1 This is an isometric view of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the stirring structure and transmission wheel assembly of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the first stirring shaft of the present invention.

[0022] Figure 5 This is a structural schematic diagram of the first stirring shaft of the present invention from another perspective.

[0023] Figure 6 is a schematic diagram of the structure of the first stirring blade assembly of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of the second stirring shaft of the present invention.

[0025] Figure 8 This is a schematic diagram of the drive device and water supply component of the present invention.

[0026] Figure 9 This is a schematic diagram of the cleaning pipeline in Embodiment 5 of the present invention.

[0027] Figure 10 This is a schematic diagram of the cleaning pipeline in Embodiment 6 of the present invention.

[0028] In the diagram: 1. Heating tank, 2. First stirring shaft, 3. Second stirring shaft, 4. Connecting arm, 5. Cleaning assembly, 5.1. Connecting plate, 5.2. Cleaning pipeline, 5.21. First vertical pipe, 5.22. Intermediate horizontal pipe, 5.221. Bend, 5.23. Second vertical pipe, 6. Cover plate, 7. Feed pipe, 8. Transmission wheel assembly, 8.1. First transmission gear, 8.2. Second transmission gear, 8.3. External gear ring, 9. First stirring blade assembly 9.1. Mounting block, 9.2. Mounting base, 9.3. First stirring blade, 9.4. Elastic element, 10. Second stirring blade, 11. Water supply assembly, 11.1. Turbine pump, 11.11. Drive shaft, 11.12. Water inlet, 11.13. Water outlet, 11.2. Water inlet pipe, 11.3. Water inlet valve, 12. Nozzle, 13. Scraper, 14. Drive unit, 14.1. Drive shaft, 15. Water supply bracket, 16. Synchronous toothed belt. Detailed Implementation

[0029] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0030] Example 1: As Figures 1 to 8 The illustrated carbon dioxide capture material precursor mixing device includes a heating tank 1. An mixing mechanism is installed inside the heating tank 1, comprising a first mixing shaft 2 and a second mixing shaft 3. The first mixing shaft 2 is positioned at the center of the heating tank 1, and the second mixing shaft 3 is eccentrically positioned relative to the first mixing shaft 2 on the heating tank 1. A connecting arm 4 is located near the top of the first mixing shaft 2, with one end connected to the first mixing shaft 2 and the other end equipped with a cleaning component 5. The second mixing shaft 3 is positioned in the middle, and the first and second mixing shafts 2 and 3 are arranged parallel to each other. When the first mixing shaft 2 rotates, it can agitate the casting liquid (precursor) inside the heating tank 1. The second mixing shaft 3 rotates synchronously with the first mixing shaft 2 and can agitate the area surrounding the first mixing shaft 2. The first mixing shaft 2 also synchronously drives the cleaning component 5 to move along the inner wall of the heating tank 1, achieving cleaning of the inner wall of the heating tank 1. This solution not only provides a better agitation effect for the casting liquid but also greatly improves the cleaning effect and convenience of the mixing device.

[0031] In this embodiment, the heating tank 1 is a cylindrical structure. A circular cover plate 6 is provided on the top of the heating tank 1. The cover plate 6 is detachably connected to the heating tank 1. A feeding port is provided on the cover plate 6, which is connected to a feed pipe 7, allowing the casting liquid material to be added into the heating tank 1. A stirring mechanism is provided at the center of the cover plate 6. The stirring mechanism includes a first stirring shaft 2 and a second stirring shaft 3. The axis of the first stirring shaft 2 is the same as the axis of the heating tank 1. The second stirring shaft 3 is arranged parallel to the first stirring shaft 2, and a certain distance is maintained between the second stirring shaft 3 and the first stirring shaft 2; that is, the second stirring shaft 3 is eccentrically arranged inside the heating tank 1.

[0032] The first stirring shaft 2 and the second stirring shaft 3 are synchronously driven by a transmission wheel set 8. Specifically, the transmission wheel set 8 includes a first transmission gear 8.1, a second transmission gear 8.2, and an external gear ring 8.3. The first transmission gear 8.1 is located at the top of the first stirring shaft 2 and below the cover plate 6, and the second transmission gear 8.2 is located at the top of the second stirring shaft 3 and below the cover plate 6. The first transmission gear 8.1 and the second transmission gear 8.2 mesh with each other, so when the first transmission gear 8.1 rotates, it will drive the second transmission gear 8.2 to rotate, that is, the first stirring shaft 2 and the second stirring shaft 3 will stir synchronously. Furthermore, an external gear ring 8.3 is provided on the outer side of the first transmission gear 8.1 and the second transmission gear 8.2. The inner diameter side of the external gear ring 8.3 has internal teeth. The external gear ring 8.3 is fixedly connected to the lower side of the cover plate 6, forming a stationary structure. The second transmission gear 8.2 meshes internally with the external gear ring 8.3. That is, the first transmission gear 8.1, the second transmission gear 8.2, and the external gear ring 8.3 form a planetary gear system. When the first transmission gear 8.1 rotates, it drives the second transmission gear 8.2 to rotate on its own axis, and simultaneously, the second transmission gear 8.2 revolves around the first transmission gear 8.1. In other words, the motion trajectory of the second stirring shaft 3 within the heating tank 1 is a circular motion.

[0033] Furthermore, a connecting arm 4 is provided at the position of the first stirring shaft 2 and below the first transmission gear 8.1. The connecting arm 4 is arranged in a horizontal radial direction and is rotatably connected to the first stirring shaft 2. In this embodiment, the end of the connecting arm 4 is rotatably connected to the first stirring shaft 2, and the other end of the connecting arm 4 is fixedly connected to a cleaning component 5. A second stirring shaft 3 is provided at the middle position (relative to the middle position) of the connecting arm 4, and the second stirring shaft 3 is rotatably connected to the connecting arm 4. When the first stirring shaft 2 rotates, the first transmission gear 8.1 also rotates, which in turn drives the second transmission gear 8.2 to rotate. The second transmission gear 8.2 also meshes with the external gear ring 8.3. When the second transmission gear 8.2 is driven to rotate, it also moves in a ring motion inside the external gear ring 8.3, that is, the second stirring shaft 3 revolves around the first stirring shaft 2. The second stirring shaft 3 and the connecting arm 4 are rotatably connected (with radial constraints). The connecting arm 4 and the first stirring shaft 2 are also rotatably connected. Therefore, the revolution of the second stirring shaft 3 will also drive the connecting arm 4 to rotate around the first stirring shaft 2. That is, the revolution period of the connecting arm 4 is the same as the revolution period of the second stirring shaft 3. When the second stirring shaft 3 revolves once inside the heating tank 1, the connecting arm 4 and the cleaning component 5 will also revolve once inside the heating tank 1. Furthermore, in this embodiment, the tooth ratio of the external gear ring 8.3, the first transmission gear 8.1, and the second transmission gear 8.2 is 4:2:1.

[0034] A first stirring blade assembly 9 is provided on the first stirring shaft 2, and a second stirring blade 10 is provided on the second stirring shaft 3. The first stirring blade assembly 9 primarily stirs the casting liquid at the center of the heating tank 1, while the second stirring blade 10 stirs the casting liquid in the annular region around the first stirring shaft 2. The first stirring blade assembly 9 and the second stirring blade 10 achieve large-scale stirring within the heating tank, forming a three-dimensional shear flow field. Furthermore, since the first stirring shaft 2 and the second stirring shaft 3 are synchronously driven by a transmission wheel set, their rotation directions are opposite. For example, if the first stirring shaft 2 rotates clockwise, the second stirring shaft 3 rotates counterclockwise while simultaneously revolving clockwise, thus ensuring thorough and uniform stirring of the casting liquid.

[0035] Furthermore, in this embodiment, one set of first stirring blade assemblies 9 is provided, and the first stirring blade assembly 9 is located at the lowest end of the first stirring shaft 2 and close to the bottom of the heating tank 1. Four sets of second stirring blades 10 are provided, and the four sets of second stirring blades 10 are evenly distributed in the vertical direction (axial direction) of the second stirring shaft 3 to ensure a large-scale stirring in the axial direction of the heating tank 1. Among them, the position of the second stirring blade 10 at the lowest position on the second stirring shaft 3 is higher than the position of the first stirring blade assembly 9, which can effectively prevent interference between the first stirring blade assembly 9 and the second stirring blades 10. When the first stirring shaft 2 and the second stirring shaft 3 are working, since the second stirring shaft 3 is eccentrically set, the stirring vortex formed by the rotation of the second stirring shaft 3 is not located at the center of the heating tank 1, but at an eccentric position. At the same time, the first stirring blade assembly 9 on the first stirring shaft 2 is located below the second stirring shaft 3, and the rotation direction is opposite to the rotation direction of the second stirring blades 10. Therefore, the first stirring blade assembly 9 can disrupt the center of the vortex generated by the stirring of the second stirring blades 10, disperse the vortex, and thus make the casting liquid fully mixed and stirred.

[0036] Specifically, each set of second stirring blades 10 on the second stirring shaft 3 includes four blades, each with a certain tilt angle to ensure stirring effect. The first stirring blade assembly 9 includes a mounting block 9.1, a mounting base 9.2, and first stirring blades 9.3, as shown below. Figures 4 to 6 As shown, the center of the mounting block 9.1 is fixedly connected to the first stirring shaft 2. The mounting block 9.1 has a regular pentagonal structure. Five sets of mounting seats 9.2 are arranged on the outer periphery of the mounting block 9.1 and in its thickness direction. The mounting seats 9.2 are fixedly connected to the mounting block 9.1 and extend radially outward along the mounting block 9.1. The mounting seats 9.2 have radially arranged mounting grooves inside, and the first stirring blades 9.3 are arranged in the mounting grooves. The first stirring blades 9.3 are arranged horizontally. When the first stirring shaft 2 rotates, it drives the first stirring blades 9.3 to stir and form a shear flow field.

[0037] Furthermore, the first stirring blade 9.3 and the mounting base 9.2 are connected by a retractable sliding connection. Specifically, as shown... Figure 6As shown, the first stirring blade 9.3 has a T-shaped structure. The T-head of the first stirring blade 9.3 is slidably connected to the mounting groove inside the mounting base 9.2. The radial outer end face of the mounting base 9.2 has an opening, allowing the blade portion of the first stirring blade 9.3 to extend. An elastic element 9.4 is also provided between the T-head of the first stirring blade 9.3 and the inner side of the outer end face of the mounting base 9.2. There are four sets of elastic elements 9.4, all of which are circular springs. The elastic elements 9.4 are symmetrically distributed on the upper and lower sides of the first stirring blade 9.3, ensuring that the first stirring blade 9.3 can stably extend and retract within the mounting groove. When the first stirring shaft 2 rotates, the first stirring blade 9.3 generates centrifugal force, causing it to move radially outward. This means the first stirring blade 9.3 extends a longer length from the mounting base 9.2, increasing its stirring radius. Within a certain range, the faster the rotation speed of the first stirring shaft 2, the larger the stirring radius of the first stirring blade 9.3, and the better the mixing effect with the second stirring blade 10. When the rotational speed of the first stirring shaft 2 decreases, the centrifugal force of the first stirring blade 9.3 decreases, and the first stirring blade 9.3 will retract part of itself into the mounting base 9.2.

[0038] Furthermore, a cleaning assembly 5 is also provided on the connecting arm 4. Specifically, the cleaning assembly 5 includes a connecting plate 5.1 and a cleaning pipe 5.2. The connecting plate 5.1 is fixedly connected to the end of the connecting arm 4 away from the first stirring shaft 2. The cleaning pipe is arranged on the first stirring shaft 2, the connecting arm 4, and the connecting plate 5.1. In this embodiment, the cleaning pipe is a flow channel inside the first stirring shaft 2, the connecting arm 4, and the connecting plate 5.1. Specifically, the interior of the first stirring shaft 2 is a hollow structure. The first stirring shaft 2 is arranged vertically, and from the top of the first stirring shaft 2 to the position of the connecting arm 4, the first stirring shaft 2 is a hollow structure. Similarly, the interior of the connecting arm 4 also has a hollow portion forming a flow channel. The outer periphery of the first stirring shaft 2 is also provided with an output hole, so that the hollow flow channel inside the first stirring shaft 2 can communicate with the hollow flow channel inside the connecting arm 4. Furthermore, the connecting plate 5.1 is arranged vertically, and the interior of the connecting plate 5.1 is also provided with a hollow flow channel, which communicates with the hollow flow channel inside the connecting arm 4. The hollow flow channel inside the first stirring shaft 2, the connecting arm 4, and the connecting plate 5.1 forms a cleaning pipeline. The external water supply component 11 can introduce cleaning liquid into the first stirring shaft 2. The cleaning liquid flows through the cleaning pipeline in sequence through the first stirring shaft 2 and the connecting arm 4, and then is output from the connecting plate 5.1.

[0039] Furthermore, a plurality of nozzles 12 are provided on the connecting plate 5.1. In this embodiment, eight nozzles 12 are provided, which are arranged at intervals on the connecting plate 5.1 and distributed vertically. The nozzles 12 are located on the side of the connecting plate 5.1 closer to the inner wall of the heating tank 1, that is, the nozzles 12 face the inner wall of the heating tank 1. Each nozzle 12 is connected to the hollow flow channel inside the connecting plate 5.1, so that when cleaning fluid enters the interior of the connecting plate 5.1, the cleaning fluid can be sprayed onto the inner wall of the heating tank 1 through the nozzles 12. Furthermore, scrapers 13 are provided on both sides of the connecting plate 5.1 and on both sides of the nozzles 12. That is, two scrapers 13 are provided on the connecting plate 5.1. One end of the scraper 13 is fixedly connected to the connecting plate 5.1, and the other end of the scraper 13 approaches and adheres to the inner wall of the heating tank 1 along the radial direction of the heating tank 1. A cylindrical cavity can be formed between the two sets of scrapers 13 and the inner wall of the heating tank 1. When cleaning fluid is introduced into the cleaning pipeline, the cleaning fluid is sprayed through the nozzle 12 into the cavity formed by the scrapers 13 and the inner wall of the heating tank 1. The cleaning fluid forms a water column in the cavity, while the scrapers 13 scrape circumferentially along the inner wall of the heating tank 1. The cleaning fluid also forms a water film between the connecting plate 5.1 and the inner wall of the heating tank 1, improving the cleaning effect. Preferably, to avoid scratches between the connecting plate 5.1 and the inner wall of the heating tank 1, a flexible brush can be provided on the side of the connecting plate 5.1 that is in contact with the heating tank 1.

[0040] like Figures 1 to 3 and combined Figure 8As shown, a drive device 14 and a water supply assembly 11 are also provided on the cover plate 6. The drive device 14 is a rotary motor, and the water supply assembly 11 includes a turbine pump 11.1 and a water inlet pipe 11.2. The drive device 14 is fixed to the cover plate 6 by a motor bracket. A drive shaft 14.1 is provided at the output end of the drive device 14. The drive shaft 14.1 is horizontally arranged and faces the center of the heating tank 1. The end of the drive shaft 14.1 corresponds to the top position of the first stirring shaft 2. A bevel gear set is provided between the drive shaft 14.1 and the first stirring shaft 2. The bevel gear on the drive shaft 14.1 is the second bevel gear, and the bevel gear on the first stirring shaft 2 is the first bevel gear. The first bevel gear meshes with the second bevel gear. When the drive device 14 is started, it drives the drive shaft 14.1 to output torque, which drives the second bevel gear to rotate. The second bevel gear drives the first bevel gear to rotate, thereby realizing the rotation of the first stirring shaft 2. Furthermore, a water supply bracket 15 is also provided on the drive device 14, and a water supply assembly 11 is fixed on the water supply bracket 15. Specifically, the turbine pump 11.1 is arranged directly above the first stirring shaft 2, and the turbine pump 11.1 includes a drive shaft 11.11, a water inlet end 11.12, and a water outlet end 11.13. The drive shaft 11.11 of the turbine pump 11.1 is constrained on the water supply bracket 15 and forms a rotatable connection with the water supply bracket 15. A synchronous toothed belt 16 is also provided between the drive shaft 14.1 and the drive shaft 11.11 for rotatable connection. The drive shaft 14.1 has a main transmission gear, and the drive shaft 11.11 has a driven transmission gear. The synchronous toothed belt 16 connects... The drive shaft 14.1 is connected to the drive gear and the driven gear. When the drive unit 14 is working, the drive shaft 14.1 rotates, driving the main drive gear to rotate, which in turn drives the driven gear to rotate via the synchronous gear belt 16. This causes the drive shaft 11.11 to rotate, driving the turbine pump 11.1 to work. The water inlet 11.12 of the turbine pump 11.1 is connected to the water inlet pipe 11.2, and the water outlet 11.13 of the turbine pump 11.1 is connected to the input end of the hollow flow channel at the top of the first stirring shaft 2. The top of the first stirring shaft 2 and the water outlet 11.13 of the turbine pump 11.1 form a rotatable connection. Thus, the turbine pump 11.1 is a fixed structure, while the first stirring shaft 2 can also rotate normally. A water inlet valve 11.3 is also provided on the water inlet pipe 11.2. When a cleaning operation is required, the cleaning valve 11.3 can be opened, and the cleaning fluid can be delivered into the cleaning pipeline under the action of the turbine pump 11.1.

[0041] Example 2: A carbon dioxide capture material precursor stirring device. The difference between this example and Example 1 is that the transmission wheel assembly 8 includes only a first transmission gear 8.1 and a second transmission gear 8.2. The first transmission gear 8.1 is fixed to the cover plate 6, and the second transmission gear 8.2 is fixed to the top of the second stirring shaft 3. The first transmission gear 8.1 meshes with the second transmission gear 8.2, meaning the first stirring shaft 2 passes through the first transmission gear 8.1 but does not form a connection with it (see reference). Figure 7 (Structure). A connecting arm 4 is provided below the first transmission gear 8.1. One end of the connecting arm 4 is fixedly connected to the first stirring shaft 2, and the other end of the connecting arm 4 is fixedly connected to the cleaning assembly 5. The second stirring shaft 3 is rotatably connected to the connecting arm 4 and is located between the first stirring shaft 2 and the cleaning assembly 5.

[0042] At this time, when the first rotating shaft 8.1 is driven to rotate by the bevel gear on the drive device 14, the first stirring shaft 2 drives the connecting arm 4 to rotate on a fixed axis. Since there is a radial constraint between the connecting arm 4 and the second stirring shaft 3, the connecting arm 4 will drive the second stirring shaft 3 to revolve (circular motion). The first transmission gear 8.1 and the second transmission gear 8.2 mesh, and the second transmission gear 8.2 will rotate under the action of the fixed first transmission gear 8.1. When the first stirring shaft 2 rotates clockwise, it drives the connecting arm 4 to rotate clockwise, so that the second transmission gear 8.2 revolves clockwise relative to the first transmission gear 8.1. Therefore, the second transmission gear 8.2 rotates clockwise, and the second stirring shaft 8.2 rotates clockwise. That is, the first stirring shaft 2 and the second stirring shaft 3 rotate in the same direction.

[0043] Example 3: A carbon dioxide capture material precursor stirring device. The difference between this example and Example 1 is that the transmission wheel assembly 8 includes only a second transmission gear 8.2 and an external gear ring 8.3. The second transmission gear 8.2 is fixedly connected to the top of the second stirring shaft 3, and the internal teeth of the external gear ring 8.3 mesh with the second transmission gear 8.2. One end of the connecting arm 4 is fixedly connected to the first stirring shaft 2, and the other end of the connecting arm 4 is connected to the cleaning assembly 5. The second stirring shaft 3 and the connecting arm 4 are rotatably connected and located between the first stirring shaft 2 and the cleaning assembly 5.

[0044] At this time, when the first stirring shaft 2 is driven to rotate by the bevel gear on the drive device 14, the first stirring shaft 2 drives the connecting arm 4 to rotate on a fixed axis. Since there is a radial constraint between the connecting arm 4 and the second stirring shaft 3, the connecting arm 4 will drive the second stirring shaft 3 to revolve (circular motion). The second transmission gear 8.2 meshes with the inner side of the external gear ring 8.3, and the second transmission gear 8.2 will revolve on the fixed external gear ring 8.3. When the first stirring shaft 2 rotates clockwise, it drives the connecting arm 4 to rotate clockwise, so that the second transmission gear 8.2 revolves clockwise relative to the external gear ring 8.3. Therefore, the second transmission gear 8.2 rotates counterclockwise, and the second stirring shaft 3 rotates counterclockwise. That is, the rotation directions of the first stirring shaft 2 and the second stirring shaft 3 are opposite.

[0045] Example 4: A carbon dioxide capture material precursor stirring device. The difference between this example and Example 1 is that the middle portion (relatively the middle position) of the connecting arm 4 is connected to the first stirring shaft 2, one end of the connecting arm 4 is rotatably connected to the second stirring shaft 3, and the other end of the connecting arm 4 is fixedly connected to the cleaning assembly 5. The first transmission gear 8.1 meshes with the second transmission gear 8.2, and the second transmission gear 8.2 meshes internally with the external gear ring 8.3. At this time, the first stirring shaft 2 is located between the second stirring shaft 3 and the cleaning assembly 5.

[0046] In this embodiment, the first stirring shaft 2 is arranged in the middle position, so that both sides of the first stirring shaft 2 (both ends of the connecting arm 4) are supported by the structure, thereby making the rotation effect of the transmission wheel set 8 more stable.

[0047] Example 5: A carbon dioxide capture material precursor mixing device. The difference between this example and Example 2 or Example 3 is only that the cleaning pipeline 5.2 can be a specific connecting pipe, such as... Figure 9 and Figure 10 As shown. For the scheme where the connecting arm 4 is fixedly connected to the first stirring shaft 2 (such as in Embodiments 2 and 3), the connecting arm 4 and the first stirring shaft 2 are synchronously rotating. Therefore, the cleaning pipe 5.2 can be directly arranged inside the first stirring shaft 2 and the connecting arm 4. The cleaning pipe 5.2 is an integral connecting pipe, which can effectively prevent the cleaning liquid from leaking at the joint of the hollow flow channel, improve the effective utilization rate of the cleaning liquid sprayed on the inner wall of the heating tank, and reduce the use of cleaning liquid.

[0048] The connecting pipe comprises three sections: a first vertical pipe 5.21 located in the hollow portion inside the first stirring shaft 2; a middle horizontal pipe 5.22 located inside the connecting arm; and a second vertical pipe 5.23 located on the connecting plate. The first vertical pipe 5.21, the middle horizontal pipe 5.22, and the second vertical pipe 5.23 are sequentially and integrally connected. If the cleaning pipe 5.2 interferes with the position of the second stirring shaft 3, a bend 5.221 can be provided on the middle vertical pipe 5.22 to avoid the position of the second stirring shaft 3.

Claims

1. A mixing device for carbon dioxide capture material precursors, characterized in that, The device includes a heating tank, inside which is a first stirring shaft. A connecting arm is radially provided on the first stirring shaft, and a second stirring shaft is rotatably connected to the connecting arm. The first and second stirring shafts are arranged parallel to each other and are connected by a transmission wheel set. A cleaning component adapted to the inner wall of the heating tank is provided at the end of the connecting arm away from the first stirring shaft. The cleaning component includes a connecting plate and a cleaning pipeline. The connecting plate is fixedly connected to the connecting arm, and the cleaning pipeline is located inside the first stirring shaft and the connecting arm and outputs from the connecting plate.

2. The carbon dioxide capture material precursor mixing device according to claim 1, characterized in that, Transmission wheel set includes The first transmission gear is fixedly connected to the first stirring shaft; The second transmission gear is fixedly connected to the second stirring shaft and meshes with the first transmission gear; The external gear ring meshes with the second transmission gear; The first and second transmission gears are located radially inside the external gear ring.

3. The carbon dioxide capture material precursor mixing device according to claim 1, characterized in that, The first stirring shaft is provided with a first stirring blade assembly, and the second stirring shaft is provided with several sets of second stirring blades spaced apart along the axial direction. The position of the first stirring blade assembly is lower than the position of the second stirring blades.

4. The carbon dioxide capture material precursor mixing device according to claim 3, characterized in that, The first stirring blade assembly includes a mounting block, and the mounting block is provided with a plurality of radially distributed mounting seats at circumferential intervals. The first stirring blade is provided in the mounting seats.

5. The carbon dioxide capture material precursor mixing device according to claim 4, characterized in that, The first stirring blade and the mounting base are provided with elastic elements, and the first stirring blade is elastically connected to the mounting base in a radial direction.

6. The carbon dioxide capture material precursor mixing device according to claim 1, characterized in that, The connecting plate has several nozzles spaced apart along its length. The nozzles are connected to the cleaning pipe and face the inner wall of the heating tank.

7. The carbon dioxide capture material precursor mixing device according to claim 6, characterized in that, Scrapers are provided on the connecting plate and on both sides of the nozzle, and the scrapers are in contact with the inner wall of the heating tank.

8. A carbon dioxide capture material precursor mixing device according to any one of claims 1 to 7, characterized in that, The heating tank is equipped with a cover plate, and a drive device is installed on the cover plate. The first stirring shaft passes through the cover plate and is connected to the output end of the drive device.

9. The carbon dioxide capture material precursor mixing device according to claim 8, characterized in that, It also includes water supply components, which include... The turbo pump's drive shaft is connected to the output end of the drive unit via a transmission belt. The inlet pipe connects to the inlet end of the turbine pump; The outlet of the turbine pump is connected to the cleaning pipe.

10. The carbon dioxide capture material precursor mixing device according to claim 8, characterized in that, The cover plate is also equipped with a feeding port, which is connected to the feed pipe.

Images