Modular carbon dioxide decarbonization column

Abstract

The present application relates to a kind of modular carbon dioxide decarbonization tower, including waste gas treatment module, feed liquid reduction module, waste gas treatment module has from top to bottom interval installation water purification spray unit, gas-liquid separation component and feed liquid spray unit;Water purification spray unit has the several spray heads of annular arrangement downwardly spraying clean water;Gas-liquid separation component has the baffle vane group formed by the several pieces of baffle vane arranged in sequence with equal interval;Feed liquid spray unit includes conical base, and there are several self-rotating atomizing wheels around the conical base inclined side circumferentially;Feed liquid reduction module includes reaction pool group and solid-liquid separator.The present application has efficient gas-liquid separation and anti-drifting capacity, efficient atomization effect and spraying range, modular design makes the installation, disassembly and maintenance of decarbonization tower more convenient, intelligent information feedback realizes the accurate matching of CO2 absorption liquid flow and CO2 flow, low energy consumption operation, realizes feed liquid recycling, reduces operating cost.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection, and in particular to a modular carbon dioxide decarbonization tower for reducing carbon dioxide emissions from ships. Background Art

[0002] Ships sailing on rivers and oceans emit large amounts of carbon dioxide during their voyage, so it is necessary to reduce greenhouse gas emissions from ships.

[0003] Decarbonization is a common approach to reducing CO2 emissions from ships. While effective, existing decarbonization technologies, such as combustion optimization and the use of clean fuels, have limited potential for improvement and are costly to retrofit. Carbon capture and storage (CCS) technology, while a promising solution, requires expensive equipment and regular replacement of the absorbent fluid, increasing operating costs.

[0004] In addition, traditional decarbonization tower equipment is large in size, inconvenient to install, and has environmental pollution and high cost issues. These problems limit the application of decarbonization technology on ships, especially on ships with limited space and cost sensitivity. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: In order to overcome the deficiencies in the existing technology, the present invention provides a modular carbon dioxide decarbonization tower, which aims to effectively control carbon dioxide emissions from ships by recycling carbon dioxide (CO2) absorption liquid, achieve low energy consumption and modular design, and simplify installation and maintenance processes.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a modular carbon dioxide decarbonization tower, including a waste gas treatment module and a liquid reduction module, and a connecting section is provided between the waste gas treatment module and the liquid reduction module.

[0007] Waste gas treatment module: includes a first-stage cylinder, in which a clean water spray unit, a gas-liquid separation component and a feed liquid spray unit are installed at intervals from top to bottom; the clean water spray unit has a plurality of nozzles arranged in a ring to spray clean water downward to clean solid impurities generated by the operation of the decarbonization tower; the gas-liquid separation component has a deflection blade group, and the deflection blade group is composed of a plurality of deflection blades arranged in sequence at equal intervals, and an air flow channel for air flow is formed between adjacent deflection blades; the feed liquid spray unit includes a conical base, and a plurality of rotatable fog wheels are evenly distributed around the oblique side of the conical base. The fog wheel rotates around the conical base, shears and discharges the feed liquid evenly spread on the oblique side of the conical base to form fine droplets, and the droplets come into contact with the carbon-containing air to form turbid liquid that enters the feed liquid reduction module.

[0008] The slurry reduction module has a three-stage cylinder, in which a reaction tank group and a solid-liquid separator are installed; the reaction tank group includes a reaction tank for storing and stirring the turbid liquid dropped by the slurry spray unit; the solid-liquid separator includes a solid-liquid separator shell, and the interior of the solid-liquid separator shell is divided into a sewage chamber and a clean water chamber, the sewage chamber is connected to the reaction tank pipeline, and a plurality of filter cartridges are arranged in the clean water chamber.

[0009] Connecting section: It has a second-order cylinder, the upper end of the second-order cylinder is fixedly connected to the first-order cylinder, the lower end of the second-order cylinder is fixedly connected to the third-order cylinder, and the side wall of the second-order cylinder is connected to an air intake pipe for introducing carbon-containing air.

[0010] Specifically, the purified water spray unit includes an annular bracket fixed to the first-stage cylinder, an annular water pipe is fixed inside the annular bracket, the nozzle is fixed to the annular water pipe through a threaded connection, and the side of the annular water pipe is connected to a water inlet pipe passing through the first-stage cylinder.

[0011] In order to better improve the gas-liquid separation effect, the gas-liquid separation component has an efficiency enhancement module, a box body and two upper and lower fairings. The inner ends of the fairings are welded to the upper and lower ends of the box body respectively, and the outer end side of the fairing is welded and fixedly connected to the first-order cylinder; the deflector blade group is fixed in the box body.

[0012] Specifically, the efficiency-enhancing module is installed on the deflection blade, and the efficiency-enhancing module includes an efficiency-enhancing cover plate, a micro-cyclone separator, a micro-air pump, an efficiency-enhancing exhaust channel cover plate, an efficiency-enhancing exhaust channel cover plate, an air pipe and a partition plate; the efficiency-enhancing cover plate is placed above one side of the bending protrusion of the deflection blade to form an internal channel with the bending area of ​​the deflection blade, and the partition plate is arranged in the middle of the efficiency-enhancing cover plate to divide the internal channel into an exhaust channel and an exhaust channel, and the efficiency-enhancing exhaust channel cover plate is connected to the wall of the box with an exhaust hole to form an exhaust channel; the efficiency-enhancing exhaust channel cover plate is connected to the wall of the box with an exhaust hole to form an exhaust channel; the micro-cyclone separator and the micro-air pump are installed on the outer wall of the box, and the efficiency-enhancing exhaust channel cover plate, the efficiency-enhancing exhaust channel cover plate are connected in series with the micro-cyclone separator and the micro-air pump through the air pipe.

[0013] Specifically, the liquid spraying unit includes: a support frame fixed to the inner wall of the first-stage cylinder, a rotatable arm support seat is provided under the support frame, a conical base is located under the arm support seat, the conical base is fixed to the support frame through a hollow steel pipe, the arm support seat and the hollow steel pipe are gap-fitted, an infusion pipe for conveying CO2 absorption liquid is inserted into the upper port of the hollow steel pipe, a plurality of water outlets are provided on the side wall of the bottom end of the hollow steel pipe, arms are evenly fixed on the arm support seat in a circumferential direction, and the outer end of the arm is connected to the mist-making wheel through a connecting rod.

[0014] Furthermore, a liquid spraying motor is fixed on the support frame, a large gear is fixed on the motor shaft of the liquid spraying motor, a small gear that is meshed with the large gear and rotates in the middle of the hollow steel pipe through a bearing, and the bottom end of the small gear is fixed to the upper end face of the arm support seat through a sleeve, and a spring is connected to the connection between the arm and the connecting rod. Through the action of the spring, it is ensured that the fog wheel fits tightly to the side of the conical base, ensuring that the fog wheel has sufficient downward pressure and friction.

[0015] Specifically, the reaction tank group has a fixed plate, an annular bracket and a reducing agent supply pipeline. The fixed plate and the annular bracket are respectively arranged at the upper and lower ends of the reaction tank and are welded and fixed to the three-stage cylinder. A motor is installed on the fixed plate, and a stirring blade is installed at the end of the motor shaft that penetrates into the interior of the reaction tank. The reducing agent supply pipeline is fixed on the side of the three-stage cylinder and its inner end extends into the interior of the reaction tank.

[0016] Furthermore, the interior of the solid-liquid separator shell is divided into a sewage chamber and a clean water chamber by an isolation plate, and a plurality of holes connected to the filter cartridge are provided on the isolation plate; the lower pipe of the sewage chamber is connected to a sewage discharge valve that discharges filtered impurities out of the system, the upper pipe of the clean water chamber is connected to a clean water chamber refill valve that can replenish clean water, the lower pipe of the clean water chamber is connected to a water pump, and the water pump pipeline is connected to a circulating water valve provided on the outside of the three-stage cylinder.

[0017] In order to ensure the supply of clean water during the separation process and the flow of feed liquid between each processing module, the decarbonization tower also has a water supply system, which includes a clean water supply waterway and a feed liquid circulation waterway. The clean water supply waterway provides the required clean water for the clean water chamber, reaction tank and clean water spray unit of the solid-liquid separator; the feed liquid circulation waterway is used to realize the transmission of feed liquid between the waste gas treatment module and the feed liquid reduction module.

[0018] Furthermore, in order to realize real-time monitoring of gas flow, CO2 concentration and liquid flow during the separation process, a feedback control system is installed on the outer wall of the three-stage cylinder. The feedback control system includes a central controller, a gas flow meter, a CO2 concentration sensor and a liquid flow meter. The gas flow meter and CO2 concentration sensor are connected to the air intake pipe to monitor the gas flow and CO2 concentration in the air intake pipe in real time; the liquid flow meter is installed in the feed liquid circulation water circuit to monitor the liquid flow.

[0019] The beneficial effects of the present invention are:

[0020] 1. Efficient gas-liquid separation and anti-drifting capability: The efficiency-enhancing module works in synergy with the deflector blades. The rounded corner design of the deflector blades reduces airflow resistance. The efficiency-enhancing module ensures that the slurry is completely separated, thus enhancing the anti-drifting capability of the decarbonization tower.

[0021] 2. Efficient atomization and spray range: The design advantage of the liquid spray unit lies in its micro-grooves and rotating mist wheel. This not only improves the atomization effect and spray range, but also significantly increases the gas-liquid contact area by producing fine droplets, thereby significantly improving the carbon dioxide absorption efficiency. The simple structure is not easy to clog, ensuring the long-term stable operation of the decarbonization tower. It does not require high-pressure air and water pumps, and this design also reduces the system's energy consumption, making the entire decarbonization process more efficient and environmentally friendly.

[0022] 3. Modular and portable design: The decarbonization tower adopts a modular design, with each module connected by tower buckles. This design makes the installation, removal, and maintenance of the decarbonization tower quick and easy. The modular design also allows for flexible configuration of the decarbonization tower according to different application requirements, improving the adaptability and scalability of the equipment. In addition, the portable design allows the decarbonization tower to be easily transferred and deployed between different ships or industrial sites, facilitating mobile operations.

[0023] 4. Intelligent Feedback Control System: The decarbonization tower is equipped with an intelligent feedback control system. This system uses a central controller, gas flowmeter, CO2 concentration sensor, and liquid flowmeter to monitor the gas flow and CO2 concentration in the air inlet pipeline, as well as the liquid flow in the liquid circulation waterway in real time. When the CO2 concentration changes, the sensor transmits a signal to the central controller, which then intelligently adjusts the speed of the relevant valves and liquid spray motor to achieve a precise match between the CO2 absorption liquid flow rate and the CO2 flow rate. This intelligent control not only ensures a high CO2 removal rate, but also reduces energy consumption, making the decarbonization tower operation more flexible and responsive. It also reduces errors caused by human operation and improves the stability and reliability of the system.

[0024] 5. Low-energy operation: The feed liquid is recycled and reused, which reduces operating costs and the generation of chemical waste. The feed liquid spray system is resistant to blocking and can generate mist without high-pressure air pumps and high-pressure water pumps, thus reducing energy consumption. The optimized air flow dynamics design, low wind resistance treatment of the entire tower, and high efficiency and low consumption of the gas-liquid separator are adopted. The feedback control system can adjust the feed liquid supply according to the operating conditions, achieve accurate matching of the CO2 absorption liquid flow and the CO2 flow, and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention.

[0027] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the present invention.

[0028] Figure 3It is a structural schematic diagram of the water purification spray unit of the present invention.

[0029] Figure 4 It is a structural schematic diagram of the gas-liquid separation component of the present invention.

[0030] Figure 5 It is a schematic diagram of the cross-sectional structure of the deflector blade group of the present invention.

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the deflector blade group described in the present invention.

[0032] Figure 7 It is an enlarged structural diagram of the deflector blade group according to the present invention where the efficiency-enhancing cover plate is installed.

[0033] Figure 8 It is a structural schematic diagram of the liquid spraying unit of the present invention.

[0034] Figure 9 This is a diagram showing the working principle of the solid-liquid separator during operation of the present invention.

[0035] Figure 10 It is a working principle diagram of the solid-liquid separator during maintenance of the present invention.

[0036] Figure 11 It is a schematic diagram of the decarburization process of the present invention.

[0037] In the figure: 1. Waste gas treatment module; 2. Connection section; 3. Liquid reduction module; 4. Water supply system; 5. Feedback control system; 6. Tower buckle;

[0038] 1001. Water purification spray unit; 1001-1. Sprinkler; 1001-2. Annular water pipe; 1001-3. Water inlet pipe; 1001-4. Annular bracket; 1001-5. Fixing plate; 1001-6. Flange;

[0039] 1002. Gas-liquid separation assembly; 1002-1. Baffle blade assembly; 1002-1-1. Baffle blade; 1002-2. Efficiency enhancement module; 1002-2-1. Efficiency enhancement cover plate; 1002-2-2. Micro-cyclone separator; 1002-2-3. Micro air pump; 1002-2-4. Efficiency enhancement exhaust channel cover plate; 1002-2-5. Efficiency enhancement outlet channel cover plate; 1002-2-6. Air pipe; 1002-2-7. Partition plate; 1002-3. Box body; 1002-4. Fairing;

[0040] 1003. Liquid spray unit; 1003-1. Liquid spray motor; 1003-2. Support frame; 1003-3. Large gear; 1003-4. Small gear; 1003-5. Hollow steel pipe; 1003-6. Liquid delivery tube; 1003-7. Conical base; 1003-8. Arm; 1003-9. Arm support base; 1003-10. Connecting rod; 1003-11. Spring; 1003-12. Mist wheel; 1003-13. Bearing;

[0041] 1004, first-stage cylinder, 1005. rain cover;

[0042] 2001. Second-stage cylinder; 2002. Air intake pipe; 2003. CO2 concentration sensor; 2004. Gas flow meter;

[0043] 3001. Reaction cell assembly; 3001-1. Reaction cell; 3001-2. Stirring blade; 3001-3. Motor; 3001-4. Fixing plate; 3001-5. Ring bracket; 3001-6. Reductant supply pipe;

[0044] 3002. Solid-liquid separator; 3002-1. Filter cartridge; 3002-2. Solid-liquid separator housing; 3002-3. Isolation plate; 3002-4. Water pipe;

[0045] 3003. Water pump; 3004. Valve; 3004-1. Reaction tank refill valve; 3004-2. Turbid liquid inlet valve; 3004-5. Sewage valve; 3004-6. Clean water chamber refill valve; 3004-7. Circulating water valve; 3005. Three-stage cylinder; 3006. Base;

[0046] 4001. Main valve; 4002. Branch valve for clean water spray unit; 5001. Central controller; 5002. Liquid flow meter. DETAILED DESCRIPTION

[0047] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0048] like Figure 1 、 Figure 2A modular carbon dioxide decarbonization tower is shown, and the tower body of the decarbonization tower includes a first-stage cylinder 1004, a second-stage cylinder 2001 and a third-stage cylinder 3005. The bottom of the first-stage cylinder 1004 and the top of the second-stage cylinder 2001, as well as the bottom of the second-stage cylinder 2001 and the top of the third-stage cylinder 3005 are fixed by tower buckles 6, which are convenient for quick installation and disassembly. A rain cover 1005 is installed on the top of the first-stage cylinder 1004, and a base 3006 is welded and fixed to the lower end of the third-stage cylinder 3005.

[0049] The decarbonization tower is divided into three parts from top to bottom: the exhaust gas treatment module 1, the connecting section 2 and the liquid reduction module 3; and is equipped with two systems: a water supply system 4 and a feedback control system 5.

[0050] The detailed structure of the exhaust gas treatment module 1 is as follows: it includes a clean water spray unit 1001, a gas-liquid separation component 1002 and a liquid spray unit 1003. The component units are arranged at a certain interval from top to bottom and are welded and fixed to the first-stage cylinder 1004.

[0051] like Figure 3 As shown, the purified water spray unit 1001 specifically comprises: multiple nozzles 1001-1, an annular water pipe 1001-2, a water inlet pipe 1001-3, an annular bracket 1001-4, and a fixing plate 1001-5. The fixing plate 1001-5 has a circular hole, which is welded to the annular water pipe 1001-2. The lower end of the annular water pipe 1001-2 has a threaded opening. The nozzles 1001-1 are fixed to the annular water pipe 1001-2 via a threaded connection. The side end of the fixing plate 1001-5 is welded to the annular bracket 1001-4. The annular water pipe 1001-2 has a hole on its side, which is welded to the water inlet pipe 1001-3. The water inlet pipe 1001-3 passes through the annular bracket 1001-4 and the first-stage cylinder 1004 from the inside out. The outermost end of the water inlet pipe 1001-3 is welded to a flange 1001-6.

[0052] like Figures 4 to 7 As shown, the gas-liquid separation component 1002 includes a deflector blade group 1002-1, an efficiency enhancement module 1002-2, a housing 1002-3, and two upper and lower fairings 1002-4. The inner ends of the two fairings 1002-4 are welded to the upper and lower ends of the housing 1002-3, respectively, and the outer end side surfaces of the fairings 1002-4 are welded and fixedly connected to the first-stage cylinder 1004. The deflector blade group 1002-1 is welded inside the housing 1002-3. The deflector blade group 1002-1 is composed of a plurality of deflector blades 1002-1-1 arranged in sequence at equal intervals, and an airflow channel for air flow is formed between adjacent deflector blades. In the present invention, the deflector blades 1002-1-1 are designed as a "Z"-shaped structure, and their bends are rounded and treated with low resistance to reduce airflow resistance.

[0053] The efficiency-enhancing module 1002-2 is mounted on the deflector blade 1002-1-1 and includes an efficiency-enhancing cover plate 1002-2-1, a micro-cyclone separator 1002-2-2, a micro-air pump 1002-2-3, an efficiency-enhancing air extraction channel cover plate 1002-2-4, an efficiency-enhancing air outlet channel cover plate 1002-2-5, an air pipe 1002-2-6, and a partition plate 1002-2-7. The efficiency-enhancing cover plate 1002-2-1 is threadedly mounted above the curved protrusion of the deflector blade 1002-1-1. Its two sides form a circular transition with the deflector blade 1002-1-1, and the inner wall of the efficiency-enhancing cover plate 1002-2-1 forms an internal channel with the curved area of ​​the deflector blade 1002-1-1. Four rows of small holes with a diameter of less than 1 mm are opened on the efficiency-enhancing cover 1002-2-1 along the airflow direction; the partition 1002-2-7 is arranged in the middle of the efficiency-enhancing cover 1002-2-1 and is connected to the deflector blade 1002-1-1, dividing the internal channel into an exhaust channel and an exhaust channel. The four rows of small holes are divided into exhaust holes (windward side of the deflector blade 1002-1-1) and exhaust holes (leeward side of the deflector blade 1002-1-1). A through hole is opened at one end where the exhaust channel and the exhaust channel are connected to the box body 1002-3, and the through holes are correspondingly divided into exhaust holes and exhaust holes. The enhanced extraction channel cover 1002-2-4 is threadedly attached to the wall of the housing 1002-3 with the extraction holes, forming an extraction channel. The enhanced outlet channel cover 1002-2-5 is similarly threadedly attached to the wall of the housing 1002-3 with the outlet holes, forming an outlet channel. Each of the enhanced extraction channel cover 1002-2-4 and enhanced outlet channel cover 1002-2-5 has a small hole at one end, and is connected in series with the micro-cyclone separator 1002-2-2 and micro-air pump 1002-2-3 via an air pipe.

[0054] When the equipment is operating, micro-air pump 1002-2-3 is activated. The cycle of pumping and releasing air effectively disrupts the original flow field, thereby increasing the tendency of droplets to collide with the surface of deflector blade 1002-1-1. This pumping action not only draws the liquid adhering to deflector blade 1002-1-1, thereby thinning the liquid film and preventing it from breaking due to shear forces, thus preventing droplets from re-entering the flow field. Simultaneously, the airflow released from the air outlet further pushes the liquid-laden airflow closer to the surface of deflector blade 1002-1-1, making it easier for droplets to collide with the surface of deflector blade 1002-1-1, thereby improving droplet separation efficiency. This process not only significantly enhances gas-liquid separation efficiency but also effectively reduces droplet drift, thereby ensuring the efficient and stable operation of the decarbonization tower.

[0055] During this process, due to the suction effect, a small amount of droplets will inevitably be carried in the airflow. In order to prevent these droplets from being brought into the downstream area, the airflow is precisely filtered through the micro cyclone separator 1002-2-2 to ensure that the droplets are effectively separated and removed from the airflow to prevent them from being brought into the downstream area.

[0056] The liquid spray unit 1003 has similar functions to the water purification unit 1001, but is different in design. The liquid spray unit 1003 is specifically designed to recycle CO2 absorption liquid containing solid impurities, so it cannot directly adopt the structure of the water purification unit 1001.

[0057] like Figure 8 As shown, the liquid spray unit 1003 comprises the following components: a liquid spray motor 1003-1, a support frame 1003-2, a large gear 1003-3, a small gear 1003-4, a hollow steel pipe 1003-5, a liquid delivery tube 1003-6, a conical base 1003-7, an arm 1003-8, an arm support base 1003-9, a connecting rod 1003-10, a spring 1003-11, a mist wheel 1003-12, and a bearing 1003-13. The two ends of the support frame 1003-2 are fixed to the inner wall of the first-stage cylinder 1004. The liquid spray motor 1003-1 is fixed to the support frame 1003-2, and its shaft end cooperates with the large gear 1003-3 to drive the entire liquid spray unit 1003. The top of hollow steel tube 1003-5 is fixed to support frame 1003-2. Liquid delivery tube 1003-6 extends deep within hollow steel tube 1003-5 to transport the CO2 absorption liquid. Pinion gear 1003-4 is mounted in the middle of hollow steel tube 1003-5 via bearing 1003-13 and meshes with gear 1003-3 to transmit power. The bottom of hollow steel tube 1003-5 is connected to the top of conical base 1003-7. Multiple outlets are located on the sides of the bottom of hollow steel tube 1003-5 to facilitate liquid delivery. The sides of conical base 1003-7 are sloped to facilitate liquid coverage. Arm support base 1003-9 is welded to the bottom end of pinion 1003-4 via a sleeve, securing arm 1003-8. The inner end of arm 1003-8 is welded to arm support base 1003-9, while the outer end of arm 1003-8 is affixed to the upper end of connecting rod 1003-10. The lower end of connecting rod 1003-10 is connected to fog wheels 1003-12. Six fog wheels 1003-12 are evenly distributed along the circumference of conical base 1003-7 and can rotate around their own axes. Springs 1003-11 are placed at the junction of arm 1003-8 and connecting rod 1003-10 and are hung at their respective hanging points, ensuring that fog wheels 1003-12 fit tightly against the side of conical base 1003-7, ensuring sufficient downward pressure and friction.

[0058] The micro-grooves on the side of the atomizing wheel 1003-12 are meticulously designed to create an atomizing channel between the atomizing wheel 1003-12 and the conical base 1003-7, effectively guiding the shearing and discharge of the liquid. As the atomizing wheel 1003-12 rotates, the centrifugal force and forward power work together to push the liquid out along the micro-grooves. During operation, the precise fit of the atomizing wheel 1003-12 and the micro-grooves exerts pressure on the liquid layer on the conical base 1003-7, generating dynamic pressure in the liquid. This dynamic pressure is directly proportional to the square of the rotational speed of the atomizing wheel 1003-12, meaning that increasing the rotational speed will significantly increase the dynamic pressure, thereby promoting the shearing and discharge of the liquid, and the smaller the droplets. This process not only achieves efficient atomization, but also improves spray efficiency and effectively prevents blockage.

[0059] When the decarburization tower is in operation, the liquid spraying motor 1003-1 is started, driving the large gear 1003-3 to rotate, which in turn drives the small gear 1003-4 engaged with it. The rotation of the small gear 1003-4 drives the arm rod 1003-8 to rotate. This continuous power transmission ultimately synchronizes the rotation of the connecting rod 1003-10 and the atomizing wheel 1003-12. In this process, the spring 1003-11 plays a key role, providing a pulling force that effectively counteracts the friction between the atomizing wheel 1003-12 and the conical base 1003-7 caused by centrifugal force, ensuring smooth operation of the system. At the same time, the liquid delivery pipe 1003-6 continuously delivers CO2 absorption liquid, which flows out from the small holes on the side of the hollow steel pipe 1003-5, evenly spreading on the side of the conical base 1003-7. Under the dual action of the pressure and friction of the atomizing wheel 1003-12, the CO2 absorption liquid is sheared and discharged through the micro-grooves, forming fine droplets.

[0060] As shown in Figure 1 , Figure 2 , the connecting section 2 includes a second-order cylinder 2001, an air inlet pipe 2002, a CO2 concentration sensor 2003, and a gas flow meter 2004. The side of the second-order cylinder 2001 is welded and fixed with the air inlet pipe 2002, and the connection is treated with a round corner to optimize the gas flow dynamics performance in order to reduce air resistance. The CO2 concentration sensor 2003 and the gas flow meter 2004 are installed in series on the air inlet pipe 2002 to ensure accurate monitoring and feedback control of the CO2 absorption liquid supply.

[0061] As shown in Figure 2 , Figure 11As shown, the slurry reduction module 3 consists of a reaction tank group 3001, a solid-liquid separator 3002, a water pump 3003 and a valve 3004. The valve 3004 includes a reaction tank liquid replenishment valve 3004-1, a turbid liquid inlet valve 3004-2, a sewage valve 3004-5, a clean water chamber liquid replenishment valve 3004-6 and a circulating water valve 3004-7.

[0062] The reaction tank group 3001 includes a reaction tank 3001-1, a stirring blade 3001-2, a motor 3001-3, a fixed plate 3001-4, an annular bracket 3001-5, and a reducing agent supply pipeline 3001-6. The reaction tank 3001-1 is made of corrosion-resistant materials, and the upper and lower ends are respectively installed with the fixed plate 3001-4 and the annular bracket 3001-5, and are fixed by welding with the inner wall of the three-stage cylinder 3005. The motor 3001-3 is installed on the fixed plate 3001-4, and its shaft end is installed with the stirring blade 3001-2, and the stirring blade 3001-2 goes deep into the reaction tank 3001-1 inside. The three-stage cylinder 3005 side is provided with a small hole, which is welded to the reducing agent supply pipeline 3001-6. The reducing agent supply pipeline 3001-6 outer end is equipped with a leak-proof cover, and the inner end extends to the reaction tank inside to ensure the supply of reducing agent. Two small holes are located on the side of reaction tank 3001-1, each connected to a water pipe 3002-4. One pipe 3002-4 extends from the three-stage cylinder 3005 and connects to the reaction tank refill valve 3004-1 for replenishing clean water. The other pipe 3002-4 connects to the solid-liquid separator 3002, which processes the turbid liquid after the reaction in reaction tank 3001-1. A turbid liquid inlet valve 3004-2 is located in between.

[0063] like Figure 9 、 Figure 10As shown, the solid-liquid separator 3002 consists of multiple filter cartridges 3002-1 and a solid-liquid separator housing 3002-2. The interior of the solid-liquid separator housing 3002-2 is divided into two chambers by a partition plate 3002-3: a wastewater chamber and a clean water chamber. The partition plate 3002-3 is provided with multiple holes that are tightly connected to the filter cartridges 3002-1. A small hole is located at the top of the wastewater chamber, which is connected to the reaction tank 3001-1 via a water pipe 3002-4 (equipped with a turbid liquid inlet valve 3004-2) to allow wastewater containing impurities to be introduced into the solid-liquid separator 3002. A small hole is also located at the bottom of the wastewater chamber, which is connected to a drain valve 3004-5 via a water pipe 3002-4 to discharge filtered impurities out of the system. A small hole is also located in the upper portion of the clean water chamber, connected via water pipe 3002-4 to a clean water chamber refill valve 3004-6 on the outside of the three-stage cylinder 3005, allowing for replenishment of clean water when needed. A small hole is located in the lower portion of the clean water chamber, connected via water pipe 3002-4 to a water pump 3003. The other end of the water pump 3003 is connected via water pipe 3002-4 to a circulating water valve 3004-7 on the outside of the three-stage cylinder 3005.

[0064] like Figure 1 、 Figure 2 As shown, the water supply system 4 mainly includes a clean water supply circuit and a liquid circulation water circuit. The water pipe 3002-4 is connected to the power water source. Except for the main valve 4001, each branch water pipe 3002-4 is connected to the clean water chamber replenishment valve 3004-6, the reaction tank replenishment valve 3004-1 and the clean water spray unit branch valve 4002, respectively, to provide necessary clean water for the clean water chamber of the solid-liquid separator 3002, the reaction tank 3001-1 and the clean water spray unit 1001.

[0065] During normal operation, the main valve 4001, circulating water valve 3004-7, reaction tank refill valve 3004-1, and turbid liquid inlet valve 3004-2 are open; the clean water chamber refill valve 3004-6, clean water spray unit branch valve 4002, and sewage discharge valve 3004-5 remain closed. When the water level in the reaction tank 3005 exceeds a preset value, the reaction tank refill valve 3004-1 automatically closes; otherwise, it opens. The choice of reaction tank refill valve 3004-1 is not limited to the type used in this invention; other options include float valves, pressure valves, and any other device capable of automatically controlling the opening and closing of the valve according to water level fluctuations. When the equipment needs maintenance, open the clean water spray unit branch valve 4002 and the clean water chamber refill valve 3004-6, and open the sewage valve 3004-5 at the same time; at this time, it is necessary to close the water pump 3003 and the circulating water valve 3004-7 and the turbid liquid inlet valve 3004-2.

[0066] Feedback control system 5 consists of a central controller 5001, a gas flowmeter 2004, a CO2 concentration sensor 2003, and a liquid flowmeter 5002. The gas flowmeter 2004 and CO2 concentration sensor 2003 are responsible for real-time monitoring of the gas flow and CO2 concentration in the intake pipe 2003. The liquid flowmeter 5002 is installed in the liquid circulation waterway to monitor the liquid flow. When an increase in CO2 concentration is detected, the CO2 concentration sensor 2003 and gas flowmeter 2004 transmit a signal to the central controller 5001. Based on the received data, the central controller 5001 intelligently adjusts the relevant valves, adjusts the liquid flow rate, and adjusts the speed of the liquid spray motor 1003-1, achieving a precise match between the CO2 absorption liquid flow rate and the CO2 flow rate, thereby optimizing CO2 absorption efficiency and reducing energy consumption.

[0067] like Figure 11 As shown, for the carbon-containing flue gas concentration of 200 mg / m 3 To ensure the full reaction, including decarbonization reaction and reduction reaction, the ideal dosage is increased. When the equipment is first started, 7.5 kg of CO2 absorption liquid (NaOH) should be added (increased by 10%) and 8 kg of Ca(OH)2 reducing agent (increased by 20%). About 5.5 m3 of CO2 can be filtered out every day. 3 The CO2 produced 10kg of CaCO3 at a pump flow rate of 0.42kg / s. The machine was shut down for descaling. The next day, 0.5kg of CO2 absorption liquid (NaOH) (7% of the first day's amount) and 8kg of Ca(OH)2 reducing agent were added, and so on.

[0068] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A modular carbon dioxide decarbonization tower, characterized by: It comprises a waste gas treatment module (1) and a liquid reduction module (3), wherein a connecting section (2) is provided between the waste gas treatment module (1) and the liquid reduction module (3); The waste gas treatment module (1) comprises a first-stage cylinder (1004), wherein a water purification spray unit (1001), a gas-liquid separation component (1002) and a liquid spray unit (1003) are installed in the first-stage cylinder (1004) at intervals from top to bottom; The clean water spray unit (1001) comprises a plurality of spray heads (1001-1) arranged in a ring and spraying clean water downward to clean solid impurities generated by the operation of the decarbonization tower; The gas-liquid separation component (1002) has a deflection blade group (1002-1), the deflection blade group (1002-1) is composed of a plurality of deflection blades (1002-1-1) arranged in sequence at equal intervals, and an air flow channel for air flow is formed between adjacent deflection blades (1002-1-1); The liquid spraying unit (1003) includes a conical base (1003-7), and a plurality of rotatable mist-making wheels (1003-12) are evenly distributed around the oblique side surface of the conical base (1003-7). The side surface of the mist-making wheel (1003-12) is provided with micro grooves. The mist-making wheel (1003-12) rotates around the conical base (1003-7) to shear and discharge the liquid evenly spread on the oblique side surface of the conical base (1003-7) to form fine droplets. The droplets come into contact with carbon-containing air to form turbid liquid that enters the liquid reduction module (3); The liquid reduction module (3) has a three-stage cylinder (3005), in which a reaction tank group (3001) and a solid-liquid separator (3002) are installed. The reaction tank group (3001) comprises a reaction tank (3001-1) for storing and stirring the turbid liquid dropped by the liquid spraying unit (1003); The solid-liquid separator (3002) comprises a solid-liquid separator housing (3002-2), the interior of the solid-liquid separator housing (3002-2) being divided into a sewage chamber and a clean water chamber, the sewage chamber being connected to a reaction tank (3001-1) via a pipeline, and a plurality of filter cartridges (3002-1) being arranged in the clean water chamber; The connecting section (2) comprises a second-order cylinder (2001), the upper end of the second-order cylinder (2001) is fixedly connected to the first-order cylinder (1004), the lower end of the second-order cylinder (2001) is fixedly connected to the third-order cylinder (3005), and an air intake pipe (2002) for introducing carbon-containing air is connected to the side wall of the second-order cylinder (2001).

2. The modular carbon dioxide decarbonization tower according to claim 1, characterized in that: The purified water spray unit (1001) comprises an annular bracket (1001-4) fixed to a first-stage cylinder (1004); an annular water pipe (1001-2) is fixedly connected to the annular bracket (1001-4); the spray head (1001-1) is fixed to the annular water pipe (1001-2) via a threaded connection; and a water inlet pipe (1001-3) passing through the first-stage cylinder (1004) is connected to the side of the annular water pipe (1001-2).

3. The modular carbon dioxide decarbonization tower according to claim 1, characterized in that: The gas-liquid separation component (1002) comprises an efficiency-enhancing module (1002-2), a housing (1002-3), and two upper and lower fairings (1002-4); the inner ends of the fairings (1002-4) are respectively welded to the upper and lower ends of the housing (1002-3); the outer end side surfaces of the fairings (1002-4) are welded and fixedly connected to the first-stage cylinder (1004); and the deflecting blade group (1002-1) is fixed in the housing (1002-3).

4. The modular carbon dioxide decarbonization tower according to claim 3, characterized in that: The efficiency-enhancing module (1002-2) is installed on the deflecting blade (1002-1-1), and the efficiency-enhancing module (1002-2-1) includes an efficiency-enhancing cover plate (1002-2-1), a micro cyclone separator (1002-2-2), a micro air pump (1002-2-3), an efficiency-enhancing air extraction channel cover plate (1002-2-4), an efficiency-enhancing air outlet channel cover plate (1002-2-5), an air pipe (1002-2-6) and a partition plate (1002-2-7); the efficiency-enhancing cover plate (1002-2-1) is placed above one side of the bending protrusion of the deflecting blade (1002-1-1) to form an internal channel with the bending area of ​​the deflecting blade (1002-1-1), and the partition plate (1002-2-7) is arranged on the efficiency-enhancing cover plate (1002-2-1). 02-2-1) in the middle, the internal channel is divided into an exhaust channel and an exhaust channel, the efficiency-enhancing exhaust channel cover (1002-2-4) is connected to the wall of the box (1002-3) with an exhaust hole to form an exhaust channel; the efficiency-enhancing exhaust channel cover (1002-2-5) is connected to the wall of the box (1002-3) with an exhaust hole to form an exhaust channel; the micro cyclone separator (1002-2-2) and the micro air pump (1002-2-3) are installed on the outer wall of the box (1002-3), and the efficiency-enhancing exhaust channel cover (1002-2-4), the efficiency-enhancing exhaust channel cover (1002-2-5) and the micro cyclone separator (1002-2-2) and the micro air pump (1002-2-3) are connected in series through air pipes.

5. The modular carbon dioxide decarbonization tower according to claim 1, characterized in that: The liquid spraying unit (1003) comprises: a support frame (1003-2) fixed to the inner wall of the first-stage cylinder (1004); a rotatable arm support seat (1003-9) is provided below the support frame (1003-2); a conical base (1003-7) is located below the arm support seat (1003-9); the conical base (1003-7) is fixed to the support frame (1003-2) through a hollow steel pipe (1003-5); and the arm support seat (1003-9) is provided below the conical base (1003-7). 03-9) is gap-matched with the hollow steel pipe (1003-5), the upper end of the hollow steel pipe (1003-5) is extended with a liquid infusion pipe (1003-6) for conveying CO2 absorption liquid, a plurality of water outlets are provided on the side wall of the bottom end of the hollow steel pipe (1003-5), the arm support seat (1003-9) is evenly fixed with arm rods (1003-8) in the circumferential direction, and the outer end of the arm rod (1003-8) is connected to the fog wheel (1003-12) through a connecting rod (1003-10).

6. The modular carbon dioxide decarbonization tower according to claim 5, characterized in that: A liquid spraying motor (1003-1) is fixed on the support frame (1003-2), a large gear (1003-3) is fixed on the motor shaft of the liquid spraying motor (1003-1), a small gear (1003-4) meshing with the large gear (1003-3) is provided in the middle of the hollow steel pipe (1003-5) and rotates through a bearing (1003-13), the bottom end of the small gear (1003-4) is fixed to the upper end face of the arm support seat (1003-9) through a sleeve, and a spring (1003-11) is connected to the connection between the arm (1003-8) and the connecting rod (1003-10).

7. The modular carbon dioxide decarbonization tower according to claim 1, characterized in that: The reaction tank group (3001) comprises a fixed plate (3001-4), an annular bracket (3001-5) and a reducing agent supply pipe (3001-6). The fixed plate (3001-4) and the annular bracket (3001-5) are respectively arranged at the upper and lower ends of the reaction tank (3001-1) and are welded and fixed to the three-stage cylinder (3005). A motor (3001-3) is installed on the fixed plate (3001-4). A stirring blade (3001-2) that penetrates into the interior of the reaction tank (3001-1) is installed at the shaft end of the motor (3001-3). The reducing agent supply pipe (3001-6) is fixed to the side of the three-stage cylinder (3005) and its inner end extends into the interior of the reaction tank (3001-1).

8. The modular carbon dioxide decarbonization tower according to claim 7, characterized in that: The interior of the solid-liquid separator shell (3002-2) is divided into a sewage chamber and a clean water chamber by an isolation plate (3002-3). The isolation plate (3002-3) is provided with a plurality of holes connected to the filter cartridge (3002-1). The lower pipeline of the sewage chamber is connected to a sewage discharge valve (3004-5) for discharging filtered impurities from the system. The upper pipeline of the clean water chamber is connected to a clean water chamber refill valve (3004-6) for replenishing clean water. The lower pipeline of the clean water chamber is connected to a water pump (3003). The pipeline of the water pump (3003) is connected to a circulating water valve (3004-7) provided on the outside of the three-stage cylinder (3005).

9. The modular carbon dioxide decarbonization tower according to claim 1, characterized in that: The decarbonization tower further comprises a water supply system (4), the water supply system (4) comprising a clean water supply waterway and a liquid circulation waterway. The clean water supply waterway provides the clean water required for the clean water chamber of the solid-liquid separator (3002), the reaction tank (3001-1) and the clean water spray unit (1001); the liquid circulation waterway is used to realize the transmission of the liquid between the waste gas treatment module (1) and the liquid reduction module (3).

10. The modular carbon dioxide decarbonization tower according to claim 9, characterized in that: A feedback control system (5) is installed on the outer wall of the three-stage cylinder (3005). The feedback control system (5) includes a central controller (5001), a gas flow meter (2004), a CO2 concentration sensor (2003) and a liquid flow meter (5002). The gas flow meter (2004) and the CO2 concentration sensor (2003) are connected to the air intake pipe (2002) to monitor the gas flow and CO2 concentration in the air intake pipe (2002) in real time; the liquid flow meter (5002) is installed in the liquid circulation water circuit to monitor the liquid flow.

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