Industrial waste gas carbon capture and purification integrated device

Abstract

The utility model relates to the technical field of waste gas treatment, and disclose an industrial waste gas carbon capture purification integrated equipment, including the reaction tank, air pump, ignition spray head, transmission assembly, base and waste gas import pipe, the inner chamber of base is connected with connecting shaft through bearing rotation, the surface of connecting shaft is equipped with a plurality of connecting rings, the inner chamber of connecting ring is connected with a plurality of fan blade through bearing rotation, the utility model discloses fan blade can change the inclination angle through the cooperation position of adjusting connecting disc and fixed bolt, can be according to different waste gas flow condition flexible regulation air flow disturbance intensity, simultaneously, the spiral guide plate guides the gas to flow along the tank wall spiral, and the radial airflow formed with fan blade constructs three-dimensional convection, completely eliminates the gas stagnation area in the reaction tank, makes the waste gas containing carbon monoxide and oxygen mix more evenly, and further ensures carbon monoxide complete combustion, significantly improves waste gas purification efficiency, avoids the problem of poor purification effect due to incomplete local combustion.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to an integrated equipment for carbon capture and purification of industrial waste gas. Background Technology

[0002] With the rapid development of industrial manufacturing, metallurgy, chemical and other fields generate a large amount of industrial waste gas containing carbon monoxide during the production process. If such waste gas is directly emitted, it will not only cause serious air pollution, but also waste the resource potential of carbon monoxide combustion to produce carbon dioxide. Converting carbon monoxide in industrial waste gas into carbon dioxide through combustion has become an important technical approach that combines environmental governance and resource recovery value. Chinese Patent Publication No. CN220728260U discloses a technical field of waste gas treatment equipment, specifically a purification system for producing carbon dioxide from industrial waste gas. The system includes a support frame and a reaction tank fixedly installed above the support frame. The reaction tank has a waste gas inlet pipe for introducing waste gas, and an ignition nozzle extending into the reaction tank is also installed on the reaction tank. The system is characterized by a stirring element rotatably mounted inside the reaction tank. This stirring element is connected via a transmission component to a pump structure installed outside the reaction tank. The pump structure communicates with the reaction tank. When the pump structure pumps oxygen into the reaction tank, the transmission component drives the stirring element to move. By synchronizing the movement of the stirring element and the pump, the pump simultaneously pumps in oxygen while simultaneously driving the stirring element to fully mix the waste gas with oxygen and guide the generated carbon dioxide to the exhaust port for discharge. Ultimately, this ensures the complete combustion of carbon monoxide in the waste gas, achieving the purpose of purifying the waste gas. The aforementioned comparative document pumps oxygen into the reaction tank through a pumping structure, while simultaneously introducing exhaust gas containing carbon monoxide through an exhaust gas inlet pipe. The mixed gas is ignited by an ignition nozzle, causing the carbon monoxide to burn and generate carbon dioxide, thus achieving the dual goals of exhaust gas purification and carbon dioxide production. However, the agitator blades in the aforementioned comparative document have a fixed angle structure, relying solely on the rotation of the agitator shaft to drive gas flow. Since the blade angle cannot be adjusted, its disturbance range is limited to the central area of ​​the reaction tank. Gas near the inner wall of the reaction tank is difficult to be affected by the blades, easily forming stable gas stagnation dead zones. Carbon monoxide stagnating near the tank wall cannot fully contact oxygen, directly leading to incomplete local combustion and reducing exhaust gas purification efficiency. In view of this, the present invention proposes an integrated industrial waste gas carbon capture and purification device to solve the above-mentioned technical problems. Utility Model Content

[0003] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for an integrated industrial waste gas carbon capture and purification device. The fan blades can change their tilt angle by adjusting the fit between the connecting plate and the fixing bolts, allowing for flexible adjustment of the airflow disturbance intensity according to different waste gas flow conditions. Simultaneously, the spiral guide plate guides the gas to flow spirally along the tank wall, creating three-dimensional convection with the radial airflow formed by the fan blades. This completely eliminates the gas stagnation area within the reaction tank, resulting in a more uniform mixing of carbon monoxide-containing waste gas and oxygen. This ensures complete combustion of carbon monoxide, significantly improving waste gas purification efficiency and avoiding poor purification effects caused by incomplete local combustion.

[0004] This utility model provides the following technical solution: an integrated equipment for carbon capture and purification of industrial waste gas, including a reaction tank, an air pump, an ignition nozzle, a transmission assembly, a base, and a waste gas inlet pipe; The inner cavity of the base is rotatably connected to a connecting shaft via a bearing. Multiple connecting rings are sleeved on the surface of the connecting shaft. Multiple fan blades are rotatably connected to the inner cavity of the connecting rings via a bearing. A connecting plate is fixedly connected to the surface of each fan blade. An arc-shaped groove is formed on the surface of the connecting plate. A fixing bolt passes through the inner cavity of the arc-shaped groove. One end of the fixing bolt extends into the inner cavity of the connecting ring. A guide plate is fixedly connected to the inner wall of the reaction vessel. The guide plate has a spiral structure and extends spirally along the inner wall of the reaction vessel.

[0005] As a preferred embodiment of this utility model, the surface of the reaction vessel is provided with an inspection port, the position of which corresponds to the position of the transmission component and the fan blade, and the surface of the inspection port is fixedly connected with an inspection door by bolts.

[0006] As a preferred technical solution of this utility model, one end of the reaction vessel is fixedly connected to an exhaust pipe, and one end of the exhaust pipe is detachably connected to a filter cylinder via a flange. The inner cavity of the filter cylinder is provided with a metal filter screen and an activated carbon filter screen in sequence along the airflow direction, and both ends of the filter cylinder are provided with connecting plates that match the flange.

[0007] As a preferred embodiment of this utility model, an oxygen inlet pipe is fixedly connected to the other end of the reaction vessel, and the oxygen inlet pipe is detachably connected to the outlet end of the gas pump via a flange.

[0008] As a preferred embodiment of this utility model, a sealing gasket is provided on the contact surface between the inspection door and the reaction vessel, and a high-temperature resistant sealing ring is provided on the contact surface between the oxygen inlet pipe and the air pump.

[0009] As a preferred embodiment of this utility model, the inner wall of the reaction vessel is coated with a high-temperature resistant and corrosion-resistant coating, which covers the connection area between the guide plate and the inner wall of the reaction vessel.

[0010] As a preferred embodiment of this utility model, the connecting shaft is an alloy connecting shaft with a wear-resistant coating on its surface, the wear-resistant coating covering the mating area between the connecting shaft and the bearing.

[0011] As a preferred embodiment of the present invention, the outer surface of the reaction vessel is coated with a heat-insulating coating, which is continuously distributed along the outer surface of the reaction vessel.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention effectively solves the problem of dead zones in gas mixing, improves the completeness of carbon monoxide combustion and the efficiency of waste gas purification. Compared with the shortcomings of the fan blades in the prior art, which have a fixed angle, can only disturb the gas in the middle of the reaction tank, and are prone to forming dead zones of gas stagnation near the tank wall, the fan blades in this invention can change the tilt angle by adjusting the matching position of the connecting plate and the fixing bolts. This allows for flexible adjustment of the airflow disturbance intensity according to different waste gas flow conditions. At the same time, the spiral guide plate guides the gas to flow spirally along the tank wall, forming a three-dimensional convection with the radial airflow formed by the fan blades. This completely eliminates the gas stagnation area in the reaction tank, making the carbon monoxide-containing waste gas mix more evenly with oxygen, thereby ensuring complete combustion of carbon monoxide, significantly improving the waste gas purification efficiency, and avoiding the problem of poor purification effect caused by incomplete local combustion.

[0013] This invention utilizes a layered filtration system, where the carbon dioxide generated during combustion is filtered through a metal and activated carbon filter within the filter cartridge. This process removes solid particles and residual trace harmful impurities, significantly improving the purity of the emitted carbon dioxide and achieving high-quality carbon capture and recovery. The filter cartridge is detachably connected to the exhaust pipe via a flange, facilitating periodic replacement of the filter media to maintain filtration effectiveness. Furthermore, the inspection ports and doors on the reactor surface allow for direct inspection and maintenance of core components such as the transmission assembly and fan blades. The sealing gaskets at the contact surfaces of the inspection doors and the reactor ensure airtightness after closure, preventing gas leakage from affecting operation and effectively enhancing equipment maintenance convenience and long-term operational stability and continuity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is a partially enlarged view of the present invention.

[0015] In the diagram: 1. Reaction vessel; 101. Air pump; 102. Ignition nozzle; 103. Transmission assembly; 104. Base; 105. Exhaust gas inlet pipe; 2. Connecting shaft; 201. Connecting ring; 202. Fan blade; 203. Connecting plate; 204. Arc groove; 205. Fixing bolt; 206. Guide plate; 3. Inspection port; 301. Inspection door; 4. Exhaust gas exhaust pipe; 401. Filter cartridge; 402. Metal filter screen; 403. Activated carbon filter screen; 5. Oxygen inlet pipe. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 As shown, an integrated industrial waste gas carbon capture and purification device includes a reaction tank 1, an air pump 101, an ignition nozzle 102, a transmission assembly 103, a base 104, and a waste gas inlet pipe 105. The inner cavity of the base 104 is rotatably connected to the connecting shaft 2 via a bearing. Multiple connecting rings 201 are sleeved on the surface of the connecting shaft 2. Multiple fan blades 202 are rotatably connected to the inner cavity of the connecting rings 201 via a bearing. A connecting plate 203 is fixedly connected to the surface of each fan blade 202. An arc-shaped groove 204 is opened on the surface of the connecting plate 203. A fixing bolt 205 passes through the inner cavity of the arc-shaped groove 204. One end of the fixing bolt 205 extends into the inner cavity of the connecting ring 201. A guide plate 206 is fixedly connected to the inner wall of the reaction vessel 1. The guide plate 206 has a spiral structure and extends spirally along the inner wall of the reaction vessel 1.

[0018] The surface of the reaction vessel 1 is provided with an inspection port 3. The position of the inspection port 3 corresponds to the position of the transmission component 103 and the fan blade 202. The surface of the inspection port 3 is fixedly connected with an inspection door 301 by bolts.

[0019] One end of the reaction vessel 1 is fixedly connected to an exhaust pipe 4. One end of the exhaust pipe 4 is detachably connected to a filter cylinder 401 via a flange. The inner cavity of the filter cylinder 401 is provided with a metal filter screen 402 and an activated carbon filter screen 403 in sequence along the airflow direction. Both ends of the filter cylinder 401 are provided with connecting plates that match the flange.

[0020] An oxygen inlet pipe 5 is fixedly connected to the other end of the reaction vessel 1. The oxygen inlet pipe 5 is detachably connected to the outlet end of the air pump 101 via a flange.

[0021] A sealing gasket is provided on the contact surface between the inspection door 301 and the reaction vessel 1, and a high-temperature resistant sealing ring is provided on the contact surface between the oxygen inlet pipe 5 and the air pump 101.

[0022] The inner wall of the reaction vessel 1 is coated with a high-temperature resistant and corrosion-resistant coating, which covers the connection area between the guide plate 206 and the inner wall of the reaction vessel 1.

[0023] The connecting shaft 2 is an alloy connecting shaft with a wear-resistant coating on its surface, which covers the mating area between the connecting shaft 2 and the bearing.

[0024] The outer surface of reaction vessel 1 is coated with a heat-insulating coating, which is continuously distributed along the outer surface of reaction vessel 1.

[0025] Industrial waste gas containing carbon monoxide enters the interior of reaction tank 1 through waste gas inlet pipe 105. At the same time, gas pump 101 pumps oxygen into reaction tank 1 through oxygen inlet pipe 5. The flange connection between oxygen inlet pipe 5 and gas pump 101 is tightly sealed by high temperature resistant sealing ring to avoid oxygen leakage and resulting imbalance in the mixing ratio. The transmission assembly 103 transmits power to the connecting shaft 2, causing the connecting shaft 2 to rotate around its own axis; multiple connecting rings 201 on the surface of the connecting shaft 2 rotate synchronously with the shaft, and the fan blades 202 connected to the inner cavity of the connecting rings 201 via bearings rotate accordingly, forming radial airflow disturbance. The operator can adjust the relative position of the arc groove 204 of the connecting plate 203 on the surface of the fan blades 202 and the fixing bolts 205 (loosen the fixing bolts 205, rotate the fan blades to the target angle, and then tighten them) to change the tilt angle of the fan blades 202, thereby adjusting the intensity of airflow disturbance and adapting to different exhaust gas flow conditions; Meanwhile, the spiral guide plate 206 on the inner wall of the reaction tank 1 guides the gas to move upward in a spiral motion along the tank wall, forming a three-dimensional convection with the radial airflow formed by the fan blade 202, completely eliminating the dead angle of gas stagnation in the tank; the high temperature resistant and anti-corrosion coating on the inner wall of the reaction tank 1 covers the connection area between the guide plate 206 and the tank wall, which can resist the corrosion of the metal surface by the mixed gas (containing trace amounts of corrosive impurities) and extend the service life of the equipment. When the fully mixed carbon monoxide and oxygen reach their ignition point in the reaction vessel 1, the ignition nozzle 102 releases a spark to ignite the mixture, causing a chemical reaction. During this process, the connecting shaft 2 is made of alloy material and has a wear-resistant coating covering the mating area with the bearing. This resists frictional losses caused by high-speed rotation and oxidation in a high-temperature environment, ensuring long-term stable operation of the transmission system. The continuous heat-insulating coating on the outer surface of the reaction vessel 1 effectively prevents heat from spreading from the vessel to the outside, reducing energy consumption and lowering the temperature of the outer wall of the vessel, thus ensuring operational safety. The carbon dioxide gas generated by combustion enters the filter cartridge 401 through the exhaust pipe 4 at one end of the reaction tank 1. First, it passes through a metal filter screen 402 to intercept small solid particles (such as incompletely burned carbon particles) that may be generated during combustion. Then, it passes through an activated carbon filter screen 403 to adsorb trace amounts of harmful impurities (such as volatile organic compounds) remaining in the gas, ultimately yielding high-purity carbon dioxide which is then discharged. The filter cartridge 401 is detachably connected to the exhaust pipe 4 via a flange, facilitating periodic replacement of the filter media to ensure purification effectiveness. After the equipment has been running for a period of time, internal maintenance can be performed through the inspection port 3 on the surface of the reaction tank 1 (located corresponding to the transmission component 103 and the fan blade 202): remove the fixing bolts on the surface of the inspection door 301, open the inspection door 301 to directly check the wear condition of the fan blade 202, the rotational flexibility of the connecting shaft 2, and the meshing condition of the transmission component 103; the contact surface between the inspection door 301 and the reaction tank 1 is equipped with a sealing gasket, which can re-form a sealed space after closing, ensuring the airtightness of the equipment when it is running again; The transmission component 103 in this utility model consists of a belt, a gear shaft, a first bevel gear, a second bevel gear, and an output shaft as disclosed in the prior art. Its specific power transmission path and operating principle (such as the output shaft driving the belt transmission, the belt driving the gear shaft to rotate, and the gear shaft transmitting power to the connecting shaft through the meshing of the first bevel gear and the second bevel gear) have been described in detail in the prior art. This utility model will not repeat the working principle of the transmission component 103. The relevant principles can be directly referred to in the prior art.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated industrial waste gas carbon capture and purification device, comprising: The reaction vessel (1), air pump (101), ignition nozzle (102), transmission assembly (103), base (104) and exhaust gas inlet pipe (105); The base (104) is characterized in that: the inner cavity of the base (104) is rotatably connected to the connecting shaft (2) via a bearing, the surface of the connecting shaft (2) is fitted with a plurality of connecting rings (201), the inner cavity of the connecting rings (201) is rotatably connected to a plurality of fan blades (202) via a bearing, the surface of each fan blade (202) is fixedly connected to a connecting plate (203), the surface of the connecting plate (203) is provided with an arc-shaped groove (204), the inner cavity of the arc-shaped groove (204) is provided with a fixing bolt (205), and one end of the fixing bolt (205) extends into the inner cavity of the connecting ring (201); The inner wall of the reaction vessel (1) is fixedly connected to a guide plate (206), which has a spiral structure and extends spirally along the inner wall of the reaction vessel (1).

2. The integrated industrial waste gas carbon capture and purification equipment according to claim 1, characterized in that: The surface of the reaction vessel (1) is provided with an inspection port (3), the position of which corresponds to the position of the transmission assembly (103) and the fan blade (202), and the surface of the inspection port (3) is fixedly connected with an inspection door (301) by bolts.

3. The integrated industrial waste gas carbon capture and purification equipment according to claim 1, characterized in that: One end of the reaction vessel (1) is fixedly connected to an exhaust pipe (4), and one end of the exhaust pipe (4) is detachably connected to a filter cylinder (401) via a flange. The inner cavity of the filter cylinder (401) is provided with a metal filter screen (402) and an activated carbon filter screen (403) in sequence along the airflow direction. Both ends of the filter cylinder (401) are provided with connecting plates that match the flange.

4. The integrated industrial waste gas carbon capture and purification equipment according to claim 2, characterized in that: The other end of the reaction vessel (1) is fixedly connected to an oxygen inlet pipe (5), which is detachably connected to the outlet of the gas pump (101) via a flange.

5. The integrated industrial waste gas carbon capture and purification equipment according to claim 4, characterized in that: The inspection door (301) is provided with a sealing gasket on the contact surface with the reaction vessel (1), and the oxygen inlet pipe (5) is provided with a high-temperature resistant sealing ring on the contact surface with the air pump (101).

6. The integrated industrial waste gas carbon capture and purification equipment according to claim 1, characterized in that: The inner wall of the reaction vessel (1) is coated with a high-temperature resistant and corrosion-resistant coating, which covers the connection area between the guide plate (206) and the inner wall of the reaction vessel (1).

7. The integrated industrial waste gas carbon capture and purification equipment according to claim 1, characterized in that: The connecting shaft (2) is an alloy connecting shaft with a wear-resistant coating on its surface, which covers the mating area between the connecting shaft (2) and the bearing.

8. The integrated industrial waste gas carbon capture and purification equipment according to claim 1, characterized in that: The outer surface of the reaction vessel (1) is coated with a heat-insulating coating, which is continuously distributed along the outer surface of the reaction vessel (1).

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