Tower plate type carbon capturing and sealing reaction system

Abstract

The invention discloses a tower plate type carbon capture and storage reaction system, and relates to the field of environmental protection, the tower plate type carbon capture and storage reaction system comprises a reaction tower, a pulping machine, a slurry pump, a microbubble generator and a Roots blower, a plurality of tower plate mechanisms capable of controlling gas diffusion amount and diffusion rate according to slurry flow velocity are distributed in the reaction tower from top to bottom; according to the invention, carbon dioxide is absorbed by adopting a mode that the tower plate type reaction tower is used as a main reaction and the microbubble generator is used as an auxiliary mode, so that compared with a bubble tower with the same volume, the size of the slurry is small, the required gas is less, and the carbon dioxide absorption efficiency is greatly improved. When the slurry passes through the tower plate mechanism of the reaction tower, the overflow amount of the reaction gas can be adapted according to the flow speed of the slurry, so that the slurry is always subjected to contact reaction with sufficient reaction gas, and the situation that a certain amount of entrainment is carried in the gas due to the fact that excessive reaction gas is in contact with the slurry and cannot fully react is avoided.

Description

Technical Field

[0001] The present invention relates to the field of environmental protection, and in particular to a tray-type carbon capture and storage reaction system. Background Art

[0002] Carbon fixation and alkalinity reduction reaction refers to the process of fixing carbon dioxide through chemical reactions in industrial or natural processes, while reducing the alkalinity of the solution. This type of reaction usually involves acid-base neutralization reactions and the formation of carbonates or bicarbonates. It is a means of reducing the concentration of carbon dioxide in the atmosphere, lowering the pH value, and improving environmental quality. The fine particulate waste generated after burning coal in coal-fired power plants is mainly composed of silicon dioxide, aluminum oxide, iron oxide and calcium oxide. The carbon fixation and alkalinity reduction reaction of fly ash refers to the use of the active ingredients in fly ash to react chemically with carbon dioxide, which not only fixes carbon dioxide, but also reduces the alkalinity of fly ash, thereby reducing its potential negative impact on the environment. The traditional method uses a bubbling tower with stirring, which consists of a reaction tower body, an agitator, and an aeration tube. Aeration is carried out through the aeration tube to allow gas to enter the slurry to achieve gas-liquid reaction. The agitator is used to disturb the slurry to prevent the slurry from settling, and the slurry is circulated through the pumping system. The slurry is pumped from the bottom of the tower to the top of the tower, mixed evenly with the upper slurry, and fully in contact with the gas; Obviously, there are many defects. First, the bubbling tower is large in size, so the gas consumption is also large, and a large amount of gas is required for the reaction; the liquid level in the bubbling tower is high, and the bubbles will gradually become larger during the rising process, the gas-liquid contact area will become smaller, and the mass transfer efficiency will be reduced. At the same time, a large amount of gas can easily follow the slurry into the pumping system, affecting the pump's delivery efficiency, and then affecting the entire reaction efficiency, and the bubbles can easily entrain mist to affect the operation of subsequent processes. Summary of the invention

[0003] The object of the present invention is to provide a tray-type carbon capture and storage reaction system to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tray-type carbon capture and storage reaction system, comprising a reaction tower, a pulping machine, a slurry pump, a microbubble generator and a Roots blower, wherein the reaction tower is provided with a plurality of tray mechanisms which can control the gas diffusion amount and diffusion rate according to the slurry flow rate, the slurry prepared in the pulping machine with an appropriate viscosity is input into the interior of the tower from the slurry inlet at the bottom of the reaction tower, the outlet at the bottom of the reaction tower is respectively connected to the slurry pump and the microbubble generator, and the slurry is discharged from the reaction tower to the slurry pump. The bottom of the tower is transported to the top of the reaction tower by the slurry pump, and flows through the tower plate mechanism from top to bottom in sequence. The reaction gas is input from the bottom of the reaction tower through the Roots blower, aerated into the slurry from the aeration pipe installed at the bottom of the reaction tower, and then passes through the tower plate mechanism from bottom to top in sequence to react with the slurry. A part of the remaining reaction gas flows back from the top of the reaction tower to the Roots blower for circulation, and the other part is transported to the microbubble generator to mix with the slurry to generate a slurry carrying bubbles, which enters the reaction tower for circulation.

[0005] Preferably, the tower plate mechanism includes a tower plate, and a plurality of outer cover components are equidistantly arranged on the upper end surface of the tower plate, and the outer cover components include a main outer cover and a riser, and the riser is installed through the tower plate, and the upper end surface of the riser is equidistantly arranged with triangular tooth holes, the upper end surface of the main outer cover is rotatably connected with a rotating shaft, and the bottom end portion of the rotating shaft is threadedly connected with a top cover part, and the lower end surface of the top cover part is equidistantly and fixedly connected with triangular plates corresponding to the number of triangular tooth holes, and each of the triangular plates is slidably connected in the corresponding triangular tooth hole, and the outer end surface of the main outer cover is equidistantly and through-arranged with strip holes, and a guide frame is fixedly installed in each of the strip holes.

[0006] Preferably, elastic spiral guide plates are equidistantly distributed along the side walls in the inner cavity of the riser, and the head end and the tail end of the elastic spiral guide plates are respectively fixedly connected with connecting parts, and the connecting part is fixedly connected with a fixing plate at one end close to the center position of the riser, and the connecting part located at the tail end is fixedly connected with a mounting ring, and the mounting ring is fixedly connected in the inner cavity of the riser, and the connecting part located at the head end is slidably connected to the side wall of the inner cavity of the riser, and a fixing column is fixedly connected to the fixing plate located at the head end, and the upper end of the fixing column is fixedly connected to the bottom end of the top cover.

[0007] Preferably, a hollow cover is fixedly sleeved on the rotating shaft member, and a baffle ear is fixedly connected to the hollow cover.

[0008] Preferably, the strip-shaped holes are arranged obliquely, and the inclination angle is set at 15-5°.

[0009] Preferably, the upper end surface of the tower plate is provided with raised portions at the edge, and a slurry inlet and a slurry outlet are formed on the left and right sides between the two raised portions.

[0010] Preferably, a neck sight glass is installed on the outer side of the reaction tower between two adjacent tray mechanisms.

[0011] Preferably, the viscosity of the slurry prepared in the pulping machine is controlled between 3500-5000 cP.

[0012] Preferably, a demister is installed on the top of the reaction tower.

[0013] As a preferred method, the input flow rate of the slurry and the reaction gas is controlled to achieve linkage adjustment and precise control of the slurry input and the gas input, so as to maximize the improvement of the mass transfer efficiency. The specific steps are as follows: Step 1: Install an online viscosity sensor to monitor the viscosity of the slurry output by the pulping machine in real time. Combined with the preset viscosity range (3500-5000cP), the solid-liquid mixing ratio and stirring rate in the pulping machine are automatically adjusted to ensure that the slurry fluidity meets the requirements; Step 2: A liquid level sensor is installed at the bottom of the reaction tower, and the slurry output of the slurry pump is adjusted according to the slurry level height feedback signal at the bottom of the tower to maintain the stability of the slurry circulation volume in the tower, and then the pump speed is dynamically adjusted according to the slurry circulation demand in the reaction tower to accurately control the slurry input; Step 3: Install a gas flow meter and a pressure sensor at the bottom of the reaction tower to monitor the input amount of the reaction gas and the pressure inside the tower. Install a displacement sensor in the outer cover assembly of each tower plate mechanism to provide real-time feedback on the position of the top cover, so as to receive information on the degree of opening of the triangular tooth holes. When the triangular tooth holes are opened and expanded, the input flow rate of the reaction gas is correspondingly increased, thereby reversely calibrating the gas supply of the Roots blower to achieve refined control of the gas flow rate. Step 4: Based on the opening degree information of the triangular tooth holes, the slurry level height data at the bottom of the tower, the slurry input volume of the pump, the pressure data in the tower and the flow rate data of the reaction gas, a fuzzy logic algorithm is used to achieve dynamic balance control of the slurry and gas in the reaction tower.

[0014] Preferably, the reflux gas in the tower top demister is monitored in real time, and when the reflux gas decreases, the gas distribution ratio in the microbubble generator is simultaneously reduced to further reduce the overall energy loss.

[0015] In summary, the beneficial effects of the present invention are: 1. The present invention absorbs carbon dioxide by adopting a plate-type reaction tower as the main reaction and a microbubble generator as the auxiliary mode. Compared with a bubbling tower of the same volume, the slurry volume is small and the required gas is also less. When the slurry is pressurized by a pump and passes through the microbubble generator, the high-speed slurry creates a negative pressure area in the microbubble generator, sucks the gas into the device, and then releases it, so that the bubbles collapse into micro-nano bubbles, further increasing the gas-liquid mass transfer area. At the same time, in this process, the slurry is stirred by the impeller of the slurry pump, alkaline substances are precipitated, and more carbon dioxide is absorbed, thereby increasing the carbon fixation amount.

[0016] 2. When the slurry passes through the plate mechanism of the reaction tower, the overflow amount of the reaction gas can be adapted according to the flow rate of the slurry, so that the slurry is always in contact with a sufficient amount of reaction gas for reaction, avoiding excessive reaction gas contacting with the slurry and failing to react fully, resulting in a certain amount of mist entrained in the gas and entering the upper plate mechanism upward. At the same time, when the reaction gas enters the riser, the mist entrainment can be reduced through the elastic spiral guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall process structure of a tray-type carbon capture and storage reaction system of the present invention; Figure 2 It is a schematic diagram of the partial structure of a reaction tower in a plate-type carbon capture and storage reaction system of the present invention; Figure 3 A schematic diagram of the structure of a tray mechanism in a tray-type carbon capture and storage reaction system of the present invention; Figure 4 A schematic diagram of a top view of a tray structure in a tray-type carbon capture and storage reaction system of the present invention; Figure 5 It is a schematic structural diagram of an outer cover assembly in a tray-type carbon capture and storage reaction system of the present invention; Figure 6 It is a schematic structural diagram of a riser and a top cover in a tray-type carbon capture and storage reaction system of the present invention; Figure 7 A schematic diagram of the structure of strip holes in a tray-type carbon capture and storage reaction system of the present invention; Figure 8It is a schematic diagram of the expanded structure of the riser and the top cover part in a tray-type carbon capture and storage reaction system of the present invention; Fig. 9 It is a schematic diagram of the structure of a riser pipe in a tray-type carbon capture and storage reaction system of the present invention from a top perspective; Fig.10 This is a schematic structural diagram from the bottom perspective of a riser in a plate-type carbon capture and storage reaction system of the present invention.

[0019] The symbols in the accompanying drawings are described as follows: reaction tower 1; pulping machine 2; slurry pump 3; microbubble generator 4; Roots blower 5; neck sight glass 6; reaction gas storage tank 7; tower plate 10; protrusion 11; slurry outlet 12; slurry inlet 13; outer cover assembly 20; main body outer cover 21; strip hole 22; guide frame 23; hollow cover 24; shaft member 25; baffle ear 26; riser 27; triangular tooth hole 28; fixing column 29; top cover part 30; triangular plate 31; elastic spiral guide plate 32; connecting part 33; fixing plate 34; mounting ring 35. DETAILED DESCRIPTION

[0020] The present invention will now be further described in detail in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic way, and therefore they only show the structures related to the present invention.

[0021] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0023] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0024] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of at least two elements or the interaction relationship between at least two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Combine the following Figure 1-10 The present invention is described in detail. An embodiment of the present invention is: a tray-type carbon capture and storage reaction system, comprising a reaction tower 1, a pulping machine 2, a slurry pump 3, a microbubble generator 4 and a Roots blower 5, wherein ten groups of tray mechanisms capable of controlling the gas diffusion amount and diffusion rate according to the slurry flow rate are distributed and installed in the reaction tower 1 from top to bottom, the slurry inlet at the bottom of the reaction tower 1 is connected to the pulping machine 2, and the material is fed into the pulping machine 2 in a certain proportion through a screw conveyor and a water pump, and the pulping machine 2 performs pulping, and the viscosity of the prepared slurry is controlled between 3500-5000cP to ensure good gas-liquid contact, and after the pulping is completed, it is pumped into the reaction tower 1 through the pulping machine, and the discharge port at the bottom of the reaction tower 1 is respectively connected to the slurry pump 3 and the microbubble generator 4, and most of the generated slurry is transported from the bottom of the reaction tower 1 to the top of the reaction tower 1 through the slurry pump 3 and enters , flows through the tower plate mechanism from top to bottom in sequence, and the reaction gas is input into the Roots blower 5 from the reaction gas storage tank 7, and the outlet end of the Roots blower 5 is connected to the inlet end of the bottom of the reaction tower 1, so that the reaction gas is pressurized and input into the reaction tower 1 through the Roots blower 5, and an aeration pipe is installed at the bottom of the reaction tower 1, and the reaction gas is aerated into the slurry through the aeration pipe, and then passes through the tower plate mechanism from bottom to top in sequence to contact with the slurry reaction, and the remaining reaction gas after the reaction gas passes through the ten layers of the tower plate mechanism for gas-liquid separation is carried out through the demister arranged at the top of the reaction tower 1, and then enters the suction port of the Roots blower 5 through the exhaust pipe, so that the gas is recycled. It should be noted that when the remaining reaction gas enters the Roots blower 5 for circulation, a part of the reaction gas enters the microbubble generator 4, mixes with the slurry to generate a slurry carrying bubbles, and enters the reaction tower 1 to participate in the circulation.

[0026] Microbubble generator: Bubbles of different sizes are commonly found between liquid and solid-liquid contact surfaces, and they play an important role in practical production applications. According to the diameter of the bubbles, they can be divided into large bubbles, micron bubbles, micro-nano bubbles, and nano bubbles. Among them, tiny bubbles with a diameter of 0.1 to 50 μm are called micro-nano bubbles.

[0027] Characteristics of micro-nano bubbles: (1) Large specific surface area (2) Long existence time (3) High gas-liquid mass transfer rate (4) High gas dissolution rate It is worth mentioning that, in this embodiment, reference Figure 3-Figure 6The tower plate mechanism includes a tower plate 10, which is fixedly installed in the inner cavity of the reaction tower 1. The upper end surface of the tower plate 10 is respectively provided with protrusions 11 at the edge, and a slurry inlet 13 and a slurry outlet 12 are formed between the two protrusions 11 on the left and right sides. The upper end surface of the tower plate 10 is evenly distributed with a plurality of outer cover components 20, so that the slurry enters from the slurry inlet 13 through the distributed outer cover components 20 and passes through the slurry outlet 12, and then flows to the next layer. The outer cover component 20 includes a main body outer cover 21 and a riser 27. The riser 27 is installed through the tower plate 10, and the reaction gas enters from the riser 27 from the top. The upper end surface of the riser 27 is evenly distributed with triangular tooth holes 28. The upper end surface of the main outer cover 21 is rotatably connected with a rotating shaft 25, and a hollow cover 24 is fixedly sleeved on the rotating shaft 25. A torsion spring is connected between the inner cavity top wall of the hollow cover 24 and the main outer cover 21. A baffle ear 26 is fixedly connected to the hollow cover 24. The bottom end of the rotating shaft 25 is threadedly connected with a top cover 30. The lower end surface of the top cover 30 is evenly distributed and fixedly connected with triangular plates 31 corresponding to the triangular tooth holes 28. Each of the triangular plates 31 is slidably connected to the corresponding triangular tooth holes 28. The outer end surface of the main outer cover 21 is evenly distributed and penetrated with strip holes 22. A guide frame 23 is fixedly installed in each of the strip holes 22. The reaction gas enters from the inner cavity of the riser 27. The gas overflows from the triangular tooth hole 28 at the top, passes through the guide frame 23 and reacts with the slurry. The guide frame 23 can extend into the interior of the slurry for a certain distance, so that the reaction gas can better enter the slurry and react with the slurry. When the flow rate of the slurry becomes faster, the impact force of the slurry on the baffle ear 26 becomes greater, so that the slurry with a large flow rate will impact the baffle ear 26 to rotate, thereby driving the rotating shaft 25 to rotate, and then the top cover 30 moves upward, and the triangular plate 31 also slides upward, so that the opening area of ​​the triangular tooth hole 28 becomes larger, and the amount of reaction gas overflowing per unit time is also increased. When the slurry flow rate becomes larger, the overflow amount of the reaction gas is increased, so that The slurry is fully utilized to ensure the contact efficiency between the slurry and the reaction gas. When the flow rate of the slurry slows down, the rotating shaft 25 will be reset, thereby reducing the opening area of ​​the triangular tooth hole 28 to reduce the overflow of the reaction gas. After the flow rate of the slurry slows down, the amount of slurry flowing through the tower plate mechanism per unit time is also reduced, thereby reducing the overflow of the reaction gas to fully contact and react with the slurry, thereby avoiding the excessive reaction gas and the slurry from being unable to fully react and entraining a certain amount of mist and foam, which will enter the upper tower plate mechanism upward, and at the same time, the utilization rate of the slurry on each tower plate mechanism is maximized. The slurry descends layer by layer through the tower plate mechanism, fully contacts and reacts with the gas, and finally returns to the slurry storage part at the bottom of the tower. The slurry returning to the bottom is divided into two parts.A part of the slurry is pumped to the top of the tower again through a pump, and the cycle is repeated. The slurry is fully in contact with the gas during the process. The other part of the slurry is pressurized by a pump and reacts again through a microbubble generator. The slurry after the reaction enters the slurry storage part at the bottom of the tower.

[0028] It is worth mentioning that in order to further reduce the entrainment of mist into the tray structure, reference Fig. 9 and Fig.10 In this embodiment, elastic spiral guide plates 32 are equidistantly arranged along the side wall in the inner cavity of the riser 27, and the head end and the tail end of the elastic spiral guide plate 32 are respectively fixedly connected with a connecting portion 33, and the connecting portion 33 is fixedly connected with a fixing plate 34 at one end close to the center of the riser 27, and the connecting portion 33 at the tail end is fixedly connected with a mounting ring 35, and the mounting ring 35 is fixedly connected in the inner cavity of the riser 27, and the connecting portion 33 at the head end is slidably connected to the inner cavity side wall of the riser 27, and the fixing plate 34 at the head end is fixedly connected with a fixing column 29, and the upper end of the fixing column 29 is fixedly connected to the bottom end of the top cover 30, so that when the reaction gas enters from the bottom of the riser 27, the reaction gas passes through the elastic spiral guide plate 32 and flows along the elastic spiral guide plate 32. The spiral guide plate 32 spirally passes through the triangular tooth hole 28 and enters into the main body outer cover 21. When the reaction gas passes through the elastic spiral guide plate 32, the mist entrained in the reaction gas will be subjected to a certain centrifugal effect and separate from the reaction gas, thereby effectively reducing the mist entrained in the reaction gas. At the same time, when the flow rate of the slurry increases, the rotation of the rotating shaft 25 will drive the top cover part 30 to move upward, thereby pulling the fixed column 29 upward, thereby pulling the head end of the elastic spiral guide plate 32 upward, and the tail end of the elastic spiral guide plate 32 is fixed, so the pitch of the elastic spiral guide plate 32 will appear to increase, but the total length of the elastic spiral guide plate 32 does not change. At this time, the speed of the reaction gas passing through the elastic spiral guide plate 32 will be accelerated to fully react with the slurry.

[0029] It should be noted that in order to allow the reaction gas to enter the slurry more fully, Figure 5 and Figure 7 In this embodiment, the strip hole 22 is inclined at an angle of 15-5°, preferably at 30 degrees on the top cover. The strip hole 22 is arranged along the outer circular surface of the main body outer cover 21 at an angle of 30 degrees on the top cover, so that the gas outlet of the guide frame 23 is oriented obliquely downward, so that when the reaction gas passes through the guide frame 23, it will be injected obliquely downward into the slurry to fully react with the slurry, thereby improving the contact between the slurry and the slurry and ensuring the mass transfer efficiency.

[0030] In addition, in one embodiment, in order to facilitate observation, a neck viewing mirror 6 is installed on the outer side of the reaction tower 1 between two adjacent tray mechanisms.

[0031] In specific operation, firstly, a screw conveyor and a water pump are used to feed the pulping machine 2 in a certain proportion, and the slurry viscosity is controlled between 3500-5000 cP. After the pulping is completed, the pulping machine is pumped to the reaction tower 1. Most of the slurry in the reaction tower 1 is transported to the top of the reaction tower 1 by the slurry pump 3, and then descends from the top of the tower through the ten-layer tower plate mechanism to the bottom of the tower. At the same time, the reaction gas is output from the reaction gas storage tank 7 and is pressurized and sent to the reaction tower 1 through the Roots blower 5. It is aerated into the slurry through the aeration pipe at the bottom, and passes through the tower plate mechanism layer by layer from bottom to top in the tower. , and the slurry is contacted and reacted. The total reaction gas passes through the demister arranged at the top of the reaction tower 1 for gas-liquid separation, and then enters the suction port of the Roots blower 5 through the exhaust pipe for gas recycling. At the same time, a part of the gas will be diverted to enter the microbubble generator 4, and mixed with part of the slurry to generate a slurry carrying a large number of tiny bubbles and enter the reaction tower 1. The reaction gas in the reaction gas storage tank 7 is provided by a carbon dioxide gas cylinder. The gas first enters the reaction gas storage tank 7 to ensure the stability of the gas supply entering the reaction system. Finally, the slurry after the reaction is completed is discharged through the bottom slurry discharge port; The present invention utilizes a mode in which a plate-type reaction tower is mainly used and a microbubble generator is used as an auxiliary device. The slurry first enters the plate-type reaction tower from the top of the tower, descends through the plates layer by layer, fully contacts and reacts with the gas, and finally returns to the slurry storage part at the bottom of the tower. The slurry returned to the bottom is divided into two parts. One part is pumped to the top of the tower by a pump, and the cycle is repeated. The slurry fully contacts with the gas during the process. The other part of the slurry is pressurized by a pump and reacts again through a microbubble generator. The slurry after the reaction enters the slurry storage part at the bottom of the tower. When the slurry passes through the plate mechanism in the reaction tower 1, the overflow amount of the reaction gas per unit time can be controlled according to the flow rate of the slurry. Therefore, when the flow rate of the slurry becomes faster, the impact force of the slurry on the baffle ear 26 will be greater, so that the slurry with a large flow rate will impact the baffle ear 26 to rotate, thereby driving the rotating shaft 25 to rotate, and then the top cover 30 moves upward, and the triangular plate 31 also moves accordingly. When the slurry flow rate increases, the amount of reaction gas overflowing is increased, so that the slurry can be fully utilized to ensure the contact efficiency between the slurry and the reaction gas. When the slurry flow rate slows down, the rotating shaft 25 will be reset to reduce the opening area of ​​the triangular tooth hole 28 to reduce the amount of reaction gas overflowing. After the slurry flow rate slows down, the amount of slurry flowing through the tower plate mechanism per unit time is also reduced, so that the overflow of the reaction gas is reduced to fully contact and react with the slurry, thereby avoiding the inability of the excessive reaction gas to fully react with the slurry and entraining a certain amount of mist and foam, which enters the upper tower plate mechanism upward, and at the same time, the utilization rate of the slurry on each tower plate mechanism is maximized. When the reaction gas enters the outer cover assembly 20, the entrainment of mist and foam can be reduced by the elastic spiral guide plate 32.

[0032] The above is only a specific implementation of the invention, but the protection scope of the invention is not limited to it. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the invention. Therefore, the protection scope of the invention should be based on the protection scope defined in the claims.

Claims

1. A tray-type carbon capture and storage reaction system, comprising a reaction tower (1), a pulping machine (2), a slurry pump (3), a microbubble generator (4) and a Roots blower (5), characterized in that: The reaction tower (1) is provided with a plurality of tray mechanisms which can control the gas diffusion amount and diffusion rate according to the slurry flow rate, and the slurry with an appropriate viscosity prepared in the pulping machine (2) is input into the interior of the tower from the slurry inlet at the bottom of the reaction tower (1). The outlet at the bottom of the reaction tower (1) is respectively connected to the slurry pump (3) and the microbubble generator (4). The slurry is transported from the bottom of the reaction tower (1) to the top of the reaction tower (1) through the slurry pump (3). The slurry is transported from the bottom of the reaction tower (1) to the top of the reaction tower (1) according to the above-mentioned method. The reaction gas flows through the plate mechanism for the second time, and is input from the bottom of the reaction tower (1) through the Roots blower (5), aerated into the slurry from the aeration pipe installed at the bottom of the reaction tower (1), and then passes through the plate mechanism from bottom to top in sequence to come into contact with the slurry for reaction, and a part of the remaining reaction gas flows back from the top of the reaction tower (1) to the Roots blower (5) for circulation, and another part is transported to the microbubble generator (4) to mix with the slurry to generate a slurry carrying bubbles, which enters the reaction tower (1) for circulation.

2. The tray-type carbon capture and storage reaction system according to claim 1, characterized in that: The tower plate mechanism comprises a tower plate (10), the upper end surface of the tower plate (10) is provided with a plurality of outer cover components (20) at equal intervals, the outer cover component (20) comprises a main outer cover (21) and a riser (27), the riser (27) is installed through the tower plate (10), the upper end surface of the riser (27) is provided with triangular tooth holes (28) at equal intervals, the upper end surface of the main outer cover (21) is rotatably connected to a rotating shaft component (25), the rotating shaft component (25) 25) The bottom end portion is threadedly connected to a top cover portion (30), and the lower end surface of the top cover portion (30) is evenly distributed and fixedly connected with triangular plates (31) corresponding to the number of the triangular tooth holes (28), and each of the triangular plates (31) is slidably connected to the corresponding triangular tooth hole (28). The outer end surface of the main body outer cover (21) is evenly distributed and penetrated with strip holes (22), and each of the strip holes (22) is fixedly installed with a guide frame (23).

3. A tray-type carbon capture and storage reaction system according to claim 2, characterized in that: Elastic spiral guide plates (32) are equidistantly distributed along the side wall in the inner cavity of the riser (27); the head end and the tail end of the elastic spiral guide plates (32) are respectively fixedly connected with connecting parts (33); one end of the connecting part (33) close to the center of the riser (27) is fixedly connected with a fixing plate (34); the connecting part (33) at the tail end is fixedly connected with a mounting ring (35); the mounting ring (35) is fixedly connected in the inner cavity of the riser (27); the connecting part (33) at the head end is slidably connected to the side wall of the inner cavity of the riser (27); the fixing plate (34) at the head end is fixedly connected with a fixing column (29); the upper end of the fixing column (29) is fixedly connected to the bottom end of the top cover (30).

4. The tray-type carbon capture and storage reaction system according to claim 3, characterized in that: A hollow cover (24) is fixedly sleeved on the rotating shaft (25), and a baffle ear (26) is fixedly connected to the hollow cover (24).

5. A tray-type carbon capture and storage reaction system according to claim 4, characterized in that: The strip-shaped holes (22) are arranged in an inclined manner, and the inclination angle is set at 15-5°.

6. The tray-type carbon capture and storage reaction system according to claim 5, characterized in that: The upper end surface of the tower plate (10) is provided with raised portions (11) at the edge thereof, and a slurry inlet (13) and a slurry outlet (12) are formed on the left and right sides between the two raised portions (11).

7. The tray-type carbon capture and storage reaction system according to claim 1, characterized in that: A neck sight glass (6) is installed between two adjacent tray mechanisms on the outside of the reaction tower (1), and a demister is installed on the top of the reaction tower (1).

8. The tray-type carbon capture and storage reaction system according to claim 1, characterized in that: The viscosity of the slurry prepared in the pulping machine (2) is controlled between 3500-5000 cP.

9. The tray-type carbon capture and storage reaction system according to claim 8, characterized in that: This includes controlling the input flow rates of the slurry and reaction gas, realizing the linkage adjustment and precise control of the slurry input and gas input, and maximizing the guarantee of improving the mass transfer efficiency. The specific steps are as follows: Step 1: Install an online viscosity sensor to monitor the viscosity of the slurry output by the pulping machine in real time. Combined with the preset viscosity range (3500-5000cP), the solid-liquid mixing ratio and stirring rate in the pulping machine are automatically adjusted to ensure that the slurry fluidity meets the requirements; Step 2: A liquid level sensor is installed at the bottom of the reaction tower, and the slurry output of the slurry pump is adjusted according to the slurry level height feedback signal at the bottom of the tower to maintain the stability of the slurry circulation volume in the tower, and then the pump speed is dynamically adjusted according to the slurry circulation demand in the reaction tower to accurately control the slurry input; Step 3: Install a gas flow meter and a pressure sensor at the bottom of the reaction tower to monitor the input amount of the reaction gas and the pressure inside the tower. Install a displacement sensor in the outer cover assembly of each tower plate mechanism to provide real-time feedback on the position of the top cover, so as to receive information on the degree of opening of the triangular tooth holes. When the triangular tooth holes are opened and expanded, the input flow rate of the reaction gas is correspondingly increased, thereby reversely calibrating the gas supply of the Roots blower to achieve refined control of the gas flow rate. Step 4: Based on the opening degree information of the triangular tooth holes, the slurry level height data at the bottom of the tower, the slurry input volume of the pump, the pressure data in the tower and the flow rate data of the reaction gas, a fuzzy logic algorithm is used to achieve dynamic balance control of the slurry and gas in the reaction tower.

10. The tray-type carbon capture and storage reaction system according to claim 9, characterized in that: The reflux gas in the tower top demister is monitored in real time, and when the reflux gas decreases, the gas distribution ratio in the microbubble generator is reduced synchronously.

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