Solid waste incineration carbon capture device

Abstract

The utility model discloses a solid waste incineration carbon capture device, which belongs to the technical field of solid waste incineration, and adopts the technical scheme that the solid waste incineration carbon capture device comprises an incinerator, a carbon capture pretreatment component is arranged at the top of the incinerator, and a composite capture component is arranged on the outer side of the carbon capture pretreatment component; the carbon capture pretreatment assembly comprises a pretreatment frame fixedly connected to the top of the incinerator, and a conveying channel is fixedly connected to the interior of the pretreatment frame, and the problems that an existing solid waste incineration carbon capture device is generally lack of a pretreatment structure, particulate matter and acid gas in flue gas are inconvenient to efficiently remove, and the carbon capture effect is poor can be solved. The problems that the carbon dioxide capture efficiency is low and the carbon capture effect is affected due to the fact that the existing solid waste incineration carbon capture device is inconvenient to achieve full contact and mixing of gas and liquid in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of solid waste incineration technology, and in particular to a solid waste incineration carbon capture device. Background Technology

[0002] Against the backdrop of global climate change, controlling greenhouse gas emissions has become an urgent task. As a key component of greenhouse gases, reducing CO2 emissions is of great significance for effectively controlling the total amount of greenhouse gases. Solid waste incineration is a common waste disposal method. Since some solid waste contains carbon, the exhaust gas produced after incineration will generate CO2. Currently, the most common CO2 treatment method is solvent adsorption. However, this method has many drawbacks. On the one hand, the cost of solvent adsorption of CO2 is relatively high, which undoubtedly increases the economic burden on enterprises in terms of exhaust gas treatment. On the other hand, some solvents used for adsorption are corrosive, which will cause varying degrees of corrosion to the equipment during long-term use, thereby affecting the stability and service life of the equipment and increasing the cost of equipment maintenance and replacement.

[0003] Solid waste refers to solid, semi-solid, and gaseous items and substances placed in containers that have lost their original utilization value or have not lost their utilization value but have been discarded or abandoned during production, daily life and other activities, as well as items and substances that are included in waste management by laws and administrative regulations, liquid waste that cannot be discharged into water bodies and gaseous substances placed in containers that cannot be discharged into the atmosphere. Existing carbon capture devices for incineration have poor separation effects, which result in them failing to meet the needs of users during use. This not only reduces the efficiency of the carbon capture devices for incineration but also causes trouble for the staff.

[0004] The existing patent (publication number: CN218421930U) discloses a solid waste incineration carbon capture device. By adding a spraying structure to the existing mechanical parts, it can effectively separate carbon dioxide from the flue gas, thus achieving the first separation and capture function, greatly improving the working efficiency of the capture device. By adding a filtration and purification structure, it can play a second separation and capture function, effectively protecting the natural environment and thus protecting people's health. By adding a cleaning structure, it can effectively remove carbon dioxide from the surface of the filtration mechanism, greatly saving the time of the staff and solving the problem of poor separation effect of existing incineration carbon capture devices. By adding a limiting rod and limiting pad, it can play a stabilizing role, improve the stability of spraying, and solve the trouble for the staff. By adding an anti-slip pad, it can play a stabilizing role and prevent the device from shaking or shifting during operation.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, existing solid waste incineration carbon capture devices typically lack pretreatment structures, making it difficult to efficiently remove particulate matter and acidic gases from flue gas. This results in a heavy load on subsequent capture components, affecting carbon capture efficiency and equipment lifespan. Furthermore, existing solid waste incineration carbon capture devices do not facilitate sufficient gas-liquid contact and mixing, leading to low carbon dioxide capture efficiency and impacting the carbon capture effect.

[0006] To address this, a carbon capture device for solid waste incineration is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a carbon capture device for solid waste incineration, which can solve the problems of existing solid waste incineration carbon capture devices that usually lack pretreatment structures, making it difficult to efficiently remove particulate matter and acidic gases from flue gas, resulting in a large load on subsequent capture components, affecting carbon capture efficiency and equipment lifespan. Moreover, existing solid waste incineration carbon capture devices are not conducive to achieving sufficient gas-liquid contact and mixing, resulting in low carbon dioxide capture efficiency and affecting carbon capture effect.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a solid waste incineration carbon capture device, comprising an incinerator, wherein a carbon capture pretreatment component is provided on the top of the incinerator, and a composite capture component is provided on the outside of the carbon capture pretreatment component;

[0009] The carbon capture pretreatment assembly includes a pretreatment frame fixedly connected to the top of the incinerator. A conveying channel is fixedly connected inside the pretreatment frame and communicates with the incinerator. A dual cyclone separator is fixedly connected inside the pretreatment frame and is located at the top of the conveying channel. A gas diversion plate is fixedly connected to the top of the pretreatment frame. A liquid storage tank is fixedly connected to the outside of the pretreatment frame. A spray pipe is connected to the top of the liquid storage tank, and a micro pump is installed on the outside of the spray pipe.

[0010] Preferably, the composite capture assembly includes an air intake pipe connected to the top of the pretreatment frame, the bottom of the air intake pipe is connected to an adsorption tower, and the top of the adsorption tower is fixedly connected to a drive motor.

[0011] Preferably, a rotating reaction disk is fixedly connected to the output end of the drive motor, and a liquid storage tank is fixedly connected to the outside of the pretreatment frame.

[0012] Preferably, the top of the storage tank is connected to a spray atomizer, which is located inside the adsorption tower, and the bottom of the adsorption tower is fixedly connected to a gas-liquid separator.

[0013] Preferably, the inner wall of the adsorption tower is provided with a heating wire tube, and the outer side of the adsorption tower is provided with a controller, which is electrically connected to the heating wire tube.

[0014] Preferably, a control valve is provided on the outside of the air intake pipe, and a flow meter is provided on the outside of the control valve.

[0015] Preferably, a humidity sensor is provided on the outside of the pretreatment frame, and the detection end of the humidity sensor extends through the outside of the pretreatment frame.

[0016] Preferably, a gas guide plate is fixedly connected to the bottom of the drive motor, and the gas guide plate is located at the bottom of the rotating reaction disk.

[0017] Preferably, a storage tank is fixedly connected to the bottom of the adsorption tower, and a support leg is fixedly connected to the bottom of the storage tank.

[0018] Preferably, a limiting bracket is fixedly connected to the outside of the incinerator, and a feeding frame is slidably connected to the top of the limiting bracket, the feeding frame being engaged with the incinerator.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This application uses a carbon capture pretreatment component to pretreat and filter particulate matter and some acidic gases in flue gas, thereby improving the reaction efficiency and service life of the subsequent composite capture component. Compared with traditional solid waste incineration carbon capture devices, it can reduce the load on the adsorption tower and reduce equipment corrosion, and solve the problems of low separation efficiency and inability to control flue gas humidity in traditional pretreatment structures, which leads to unstable capture effect in the subsequent process.

[0021] 2. This application uses a composite capture component to efficiently capture carbon dioxide in pretreated flue gas, thereby improving carbon capture efficiency and gas purity. Compared with traditional solid waste incineration carbon capture devices, it can achieve efficient separation and capture of carbon dioxide in pretreated flue gas, solving the problems of low efficiency and large influence from operating condition fluctuations in traditional single capture structures. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of a solid waste incineration carbon capture device according to the present invention;

[0023] Figure 2 This is a schematic diagram of the carbon capture pretreatment component of this utility model;

[0024] Figure 3 This is a cross-sectional view of the adsorption tower of this utility model;

[0025] Figure 4This is a schematic diagram of the composite capture component of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the incinerator of this utility model.

[0027] In the diagram, 1. Incinerator; 2. Control valve; 3. Flow meter; 4. Carbon capture pretreatment assembly; 401. Pretreatment frame; 402. Conveying channel; 403. Dual cyclone separator; 404. Gas diverter plate; 405. Liquid storage tank; 406. Spray pipe; 407. Micro pump; 5. Composite capture assembly; 501. Inlet pipe; 502. Adsorption tower; 503. Drive motor; 504. Rotary reaction plate; 505. Liquid storage tank; 506. Spray atomizer; 507. Gas-liquid separator; 6. Heating wire tube; 7. Controller; 8. Humidity sensor; 9. Gas guide plate; 10. Storage tank; 11. Support leg; 12. Limiting bracket; 13. Feeding frame. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 The present invention provides the following technical solution:

[0030] A carbon capture device for solid waste incineration includes an incinerator 1, a carbon capture pretreatment component 4 is provided on the top of the incinerator 1, and a composite capture component 5 is provided on the outside of the carbon capture pretreatment component 4.

[0031] The carbon capture pretreatment assembly 4 includes a pretreatment frame 401 fixedly connected to the top of the incinerator 1. A conveying channel 402 is fixedly connected inside the pretreatment frame 401 and communicates with the incinerator 1. A dual cyclone separator 403 is fixedly connected inside the pretreatment frame 401 and is located at the top of the conveying channel 402. A gas diversion plate 404 is fixedly connected to the top of the pretreatment frame 401. A liquid storage tank 405 is fixedly connected to the outside of the pretreatment frame 401. A spray pipe 406 is connected to the top of the liquid storage tank 405. A micro pump 407 is installed on the outside of the spray pipe 406.

[0032] In this embodiment: the carbon dioxide-containing flue gas generated from incineration is transported to the pretreatment frame 401 through the conveying channel 402. The flue gas first flows through the double cyclone separator 403. Under the action of centrifugal force, larger particles and impurities are thrown against the inner wall of the separator and settle, achieving preliminary dust removal. At the same time, the liquid in the storage tank 405 is pressurized by the micro pump 407 and sprayed into the conveying channel 402 through the spray pipe 406 to form atomized droplets. On the one hand, it washes the fine particles in the flue gas, and on the other hand, it adjusts the humidity of the flue gas to a suitable range. After the flue gas is separated by the double cyclone and sprayed, it is evenly distributed by the gas diversion plate 404 to create clean and humidity-stable airflow conditions for subsequent carbon capture, thereby reducing the load on the subsequent adsorption tower 502.

[0033] Specifically, such as Figure 4 As shown, the composite capture assembly 5 includes an air inlet pipe 501 connected to the top of the pretreatment frame 401, an adsorption tower 502 connected to the bottom of the air inlet pipe 501, and a drive motor 503 fixedly connected to the top of the adsorption tower 502.

[0034] Specifically, such as Figure 4 As shown, a rotating reaction disk 504 is fixedly connected to the output end of the drive motor 503, and a storage tank 505 is fixedly connected to the outside of the pretreatment frame 401.

[0035] Specifically, such as Figure 4 As shown, the top of the liquid storage tank 505 is connected to a spray atomizer 506, which is located inside the adsorption tower 502. The bottom of the adsorption tower 502 is fixedly connected to a gas-liquid separator 507.

[0036] In this embodiment: when the pretreated flue gas enters the adsorption tower 502 through the inlet pipe 501, the control valve 2 and flow meter 3 on the outside of the inlet pipe 501 regulate the inlet flow rate and velocity in real time to ensure stable reaction. Then, the drive motor 503 drives the rotating reaction disk 504 to rotate at high speed. The capture liquid in the storage tank 505 forms micron-sized droplets through the spray atomizer 506. Under the centrifugal force of the rotating reaction disk 504, the droplets are evenly diffused into the adsorption tower 502. At this time, the carbon dioxide in the flue gas comes into full contact with the atomized capture liquid. The carbon in the gas is captured by the chemical reaction of amine solution and physical adsorption. The gas guide plate 9 is located at the bottom of the rotating reaction disk 504, which guides the flue gas to rise in a spiral shape, prolonging the gas-liquid contact time and improving the capture efficiency. The gas-liquid mixture after the reaction is separated by the gas-liquid separator 507, and the liquid flows into the storage tank 10 for regeneration or recycling.

[0037] Specifically, such as Figure 3 As shown, a heating wire tube 6 is provided on the inner wall of the adsorption tower 502, and a controller 7 is provided on the outer side of the adsorption tower 502. The controller 7 is electrically connected to the heating wire tube 6.

[0038] Specifically, such as Figure 3 As shown, a control valve 2 is installed on the outside of the air intake pipe 501, and a flow meter 3 is installed on the outside of the control valve 2.

[0039] In this embodiment: by setting up a heating wire tube 6 and a controller 7, when the reaction temperature inside the adsorption tower 502 is lower than the set value, the controller 7 automatically starts the heating wire tube 6 after receiving a temperature sensor signal. The heating wire tube 6 heats the inner wall of the adsorption tower 502 and the internal gas through resistance heating, causing the reaction temperature to rise back to the optimal range. The heating wire tube 6 is spirally wound around the tower wall to ensure uniform heat distribution and avoid local overheating, thus preventing a decrease in capture efficiency due to temperature fluctuations. Automatic temperature control maintains the chemical activity and physical adsorption capacity of the capture liquid. By setting up a control valve 2 and a flow meter 3, the flow rate is controlled when the flue gas enters the tower. When the air inlet pipe 501 is in operation, the flow meter 3 monitors the flue gas velocity in real time. When the velocity exceeds the design load of the adsorption tower 502, the control valve 2 automatically adjusts its opening to reduce the air intake. Conversely, when the velocity is too low, the opening is increased to stabilize the flow rate within the optimal operating range. In addition, the operator can manually adjust the opening of the control valve 2 in conjunction with the data from the flow meter 3 to precisely control the amount of flue gas entering the adsorption tower 502, ensuring that the gas-liquid ratio of the rotating reaction disk 504 and the atomized droplets is matched. This avoids insufficient gas-liquid contact or a sudden increase in pressure inside the tower due to fluctuations in the flue gas volume, thus ensuring the continuity and stability of the carbon capture process.

[0040] Specifically, such as Figure 5 As shown, a humidity sensor 8 is provided on the outside of the pretreatment frame 401, and the detection end of the humidity sensor 8 extends through the outside of the pretreatment frame 401.

[0041] Specifically, such as Figure 4 As shown, a gas guide plate 9 is fixedly connected to the bottom of the drive motor 503, and the gas guide plate 9 is located at the bottom of the rotating reaction disk 504.

[0042] In this embodiment: By setting a humidity sensor 8, the detection end of the humidity sensor 8 monitors the humidity of the flue gas in real time. When the humidity is higher than the set threshold, which is likely to cause droplets to condense in the subsequent adsorption tower 502, the system automatically reduces the amount of liquid sprayed by the spray pipe 406. When the humidity is lower than the threshold and affects the atomization effect of the capture liquid, the amount of liquid sprayed is increased or water vapor is introduced to regulate it, so as to ensure that the humidity of the flue gas before entering the composite capture component 5 is maintained within the optimal range. This ensures the dust removal effect of spray washing and avoids the difficulty of gas-liquid separation in the adsorption tower 502 due to excessive humidity. By setting a gas guide plate 9, when the drive motor 503 drives the rotating reaction disk 504 to rotate, the gas guide plate 9 guides the flow of flue gas synchronously. The guide plate has an inclined arc surface structure, which makes the flue gas form a spiral airflow, prolonging the residence time in the adsorption tower 502. At the same time, the atomized droplets thrown out by the rotating reaction disk 504 are fully mixed with the spiral airflow to form a gas-liquid turbulent state, increasing the contact area and enabling the reaction tower to capture efficiently.

[0043] Specifically, such as Figure 1 As shown, a storage tank 10 is fixedly connected to the bottom of the adsorption tower 502, and a support leg 11 is fixedly connected to the bottom of the storage tank 10.

[0044] Specifically, such as Figure 5 As shown, a limiting bracket 12 is fixedly connected to the outside of the incinerator 1, and a feeding frame 13 is slidably connected to the top of the limiting bracket 12. The feeding frame 13 is engaged with the incinerator 1.

[0045] In this embodiment: By setting up a storage tank 10 and support legs 11, the storage tank 10 at the bottom of the adsorption tower 502 is used to collect the carbon-rich liquid separated by the gas-liquid separator 507. When the liquid level in the storage tank 10 reaches a set height, the liquid can be transported to the regeneration unit through the pipe at the bottom of the tank to be returned to the storage tank 505 for continued use. By setting up a limiting bracket 12 and a feeding frame 13, the feeding frame 13 slides along the guide rail at the top of the limiting bracket 12 via a slider. The operator pushes it to the slot and lock it with a pin at the feed inlet of the incinerator 1. When feeding, the top cover of the feeding frame 13 is opened to ensure precise connection with the feed inlet of the incinerator 1, so as to realize convenient addition and sealed feeding of solid waste, avoid direct contact between the operator and the high-temperature area, and reduce the leakage of flue gas during the incineration process.

[0046] Working principle: When using the solid waste incineration carbon capture device, the solid waste is first slidably connected to the incinerator 1 by the feeding frame 13 and the limiting bracket 12. It is then incinerated in the incinerator 1. The resulting flue gas containing carbon dioxide enters the carbon capture pretreatment component 4 through the conveying channel 402 at the top of the incinerator 1. The flue gas flows upward in the conveying channel 402, first passing through the double cyclone separator 403. Using centrifugal force, larger particles and some impurities in the flue gas are separated, reducing the burden on subsequent processing. Simultaneously, the liquid storage tank 405 outside the pretreatment frame 401 is connected to the carbon capture pretreatment component 4 by a micro-pump. Liquid is conveyed to spray pipe 406 via 407. Spray pipe 406 sprays liquid into conveying channel 402 to wash the flue gas, further removing fine particulate matter and adjusting flue gas humidity. Humidity sensor 8 monitors the humidity within pretreatment frame 401 in real time to ensure the flue gas humidity is within a suitable range for subsequent processing. The pretreated flue gas reaches gas diversion plate 404 at the top of pretreatment frame 401. Gas diversion plate 404 evenly distributes the flue gas, which enters adsorption tower 502 of composite capture component 5 through inlet pipe 501. Control valve 2 and flow meter 3 on the outside of inlet pipe 501 can... The flow rate and velocity of the flue gas are controlled to ensure stable reaction within the adsorption tower 502. Inside the adsorption tower 502, a drive motor 503 rotates a rotating reaction disk 504. A storage tank 505 atomizes and sprays the capture liquid into the adsorption tower 502 via a spray atomizer 506. The rotation of the rotating reaction disk 504 ensures full contact between the atomized capture liquid and the flue gas. Carbon dioxide in the flue gas undergoes a chemical reaction and physical adsorption with the capture liquid, thus being captured. A gas guide plate 9, located at the bottom of the rotating reaction disk 504, guides the flue gas to flow evenly, improving reaction efficiency. Heating wires 6 are installed on the inner wall of the adsorption tower 502. Under the control of controller 7, the temperature inside adsorption tower 502 can be adjusted to optimize reaction conditions and improve the carbon dioxide capture effect. The gas-liquid mixture after the reaction reaches the gas-liquid separator 507 at the bottom of adsorption tower 502. The gas-liquid separator 507 separates the liquid and gas. The separated liquid enters the storage tank 10 for storage for subsequent processing or recycling, while the separated gas is further processed or discharged. This achieves effective capture of carbon dioxide generated by solid waste incineration, reduces carbon dioxide emissions, and treats impurities in the flue gas, improving the environmental friendliness and practicality of the device.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A solid waste incineration carbon capture device, comprising an incinerator (1), characterized in that: The top of the incinerator (1) is provided with a carbon capture pretreatment component (4), and a composite capture component (5) is provided on the outside of the carbon capture pretreatment component (4). The carbon capture pretreatment component (4) includes a pretreatment frame (401) fixedly connected to the top of the incinerator (1). A conveying channel (402) is fixedly connected inside the pretreatment frame (401) and communicates with the incinerator (1). A dual cyclone separator (403) is fixedly connected inside the pretreatment frame (401) and is located at the top of the conveying channel (402). A gas diversion plate (404) is fixedly connected to the top of the pretreatment frame (401). A liquid storage tank (405) is fixedly connected to the outside of the pretreatment frame (401). A spray pipe (406) is connected to the top of the liquid storage tank (405). A micro pump (407) is provided on the outside of the spray pipe (406).

2. The solid waste incineration carbon capture device according to claim 1, characterized in that: The composite capture assembly (5) includes an air inlet pipe (501) connected to the top of the pretreatment frame (401), the bottom of the air inlet pipe (501) is connected to an adsorption tower (502), and the top of the adsorption tower (502) is fixedly connected to a drive motor (503).

3. The solid waste incineration carbon capture device according to claim 2, characterized in that: The output end of the drive motor (503) is fixedly connected to a rotating reaction disk (504), and the outside of the pretreatment frame (401) is fixedly connected to a liquid storage tank (505).

4. A solid waste incineration carbon capture device according to claim 3, characterized in that: The top of the storage tank (505) is connected to a spray atomizer (506), which is located inside the adsorption tower (502). The bottom of the adsorption tower (502) is fixedly connected to a gas-liquid separator (507).

5. A solid waste incineration carbon capture device according to claim 2, characterized in that: The inner wall of the adsorption tower (502) is provided with a heating wire tube (6), and the outer side of the adsorption tower (502) is provided with a controller (7), which is electrically connected to the heating wire tube (6).

6. A solid waste incineration carbon capture device according to claim 2, characterized in that: A control valve (2) is provided on the outside of the air intake pipe (501), and a flow meter (3) is provided on the outside of the control valve (2).

7. A solid waste incineration carbon capture device according to claim 1, characterized in that: A humidity sensor (8) is provided on the outside of the pretreatment frame (401), and the detection end of the humidity sensor (8) extends through the outside of the pretreatment frame (401).

8. A solid waste incineration carbon capture device according to claim 3, characterized in that: A gas guide plate (9) is fixedly connected to the bottom of the drive motor (503), and the gas guide plate (9) is located at the bottom of the rotating reaction disk (504).

9. A solid waste incineration carbon capture device according to claim 2, characterized in that: The bottom of the adsorption tower (502) is fixedly connected to a storage box (10), and the bottom of the storage box (10) is fixedly connected to a support leg (11).

10. A solid waste incineration carbon capture device according to claim 1, characterized in that: A limiting bracket (12) is fixedly connected to the outside of the incinerator (1), and a feeding frame (13) is slidably connected to the top of the limiting bracket (12). The feeding frame (13) is engaged with the incinerator (1).

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