Flue gas combined absorption treatment device based on multi-process combination

Abstract

The invention discloses a flue gas combined absorption treatment device based on multi-process combination, and relates to the technical field of flue gas treatment.The flue gas combined absorption treatment device comprises a base, and the top face of the base is provided with a flue gas pretreatment unit capable of sequentially conducting bubbling absorption and filtering processes on flue gas; the output end of the flue gas pretreatment unit is provided with a tail end treatment unit capable of spraying and removing impurities from the flue gas; smoke is conveyed into an integrated exhaust plate through an air inlet, the smoke is dispersed and conveyed into a bubbling reaction chamber through a plurality of one-way air nozzles formed in the top surface of the integrated exhaust plate, meanwhile, a power assembly drives a homogenizing stirring rod to rotate through a rotating rod, and the rotating homogenizing stirring rod ensures that components in liquid are relatively uniform; meanwhile, the homogeneous stirring rod scatters the bubbles to ensure that gas in the bubbles is in contact with liquid components, physical dissolution and chemical absorption of water-soluble pollutants in the flue gas are efficiently completed, and effective removal of corresponding impurities in the flue gas is achieved.

Description

Technical Field

[0001] This invention relates to the field of flue gas treatment technology, and more specifically to a flue gas combined absorption and treatment device based on a combination of multiple processes. Background Technology

[0002] In the production processes of thermal power, steel, coking, waste incineration, and ceramic and glass kilns, waste gas is generated during the combustion of fuels (coal, natural gas, waste, etc.) or the reaction of raw materials. This flue gas carries pollutants such as sulfur dioxide, nitrogen oxides, particulate matter, heavy metals, and volatile organic compounds. It needs to be treated because direct emission of these pollutants will damage the atmospheric environment, such as forming acid rain and photochemical smog, and will also harm the human respiratory system and induce health problems. It needs to be treated to meet the emission compliance requirements. You can refer to the relevant patent CN120242715A. Its essence is to rely on the staged structure of the reaction chamber and the filter components that can be quickly disassembled and installed. Combined with the detection feedback of concentration and pressure, it can achieve precise supply of the first reaction solvent, complete the efficient removal of pollutants from the flue gas, and at the same time take into account the stability of operation and the convenience of maintenance. It can also expand the function of pollutant absorption and treatment.

[0003] Existing devices mostly employ a series of independent process units or a single bubbling and spraying treatment structure. Some devices may be equipped with simple detection and control components. However, they generally suffer from weak process synergy, reliance on external heating and cooling equipment for temperature control, and unstable impurity interception effects, which are not conducive to long-term, efficient, and stable flue gas treatment. Therefore, while fully removing pollutants from flue gas and meeting emission standards, an integrated flue gas combined absorption and treatment device is needed. This device integrates bubbling homogenization enhancement, temperature self-stabilization and control, multi-stage impurity interception, and deep spraying purification. Through structural design, the synergistic linkage of bubbling, filtration, and spraying processes can be achieved. In a purely mechanical operation mode without intelligent control, it can achieve efficient flue gas purification and stable operation. To this end, we provide a flue gas combined absorption and treatment device based on a multi-process combination to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a flue gas combined absorption and treatment device based on a combination of multiple processes to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A flue gas combined absorption and treatment device based on multiple process combinations includes a base, and a flue gas pretreatment unit is provided on the top surface of the base, which can sequentially perform bubbling absorption and filtration processes on the flue gas. The output end of the flue gas pretreatment unit is provided with an end treatment unit that can perform spraying and impurity removal operations on the flue gas.

[0007] The flue gas pretreatment unit includes a bubbling reaction chamber fixedly installed on the top surface of the base for completing the bubbling absorption process, a heat exchange pipeline installed inside the bubbling reaction chamber for maintaining a stable temperature within a suitable range, and a gas supply pipe installed at the output end on the top surface of the bubbling reaction chamber for further filtration of the flue gas.

[0008] The end-of-line treatment unit includes a spray chamber located at the output end of the flue gas pretreatment unit to separate flue gas and liquid, and a flow guide hood located inside the spray chamber to guide the airflow.

[0009] A further improvement of the technical solution of the present invention is that: an air inlet is provided at the input end of the bubbling reaction chamber, a filter support is fixedly connected to the side of the bubbling reaction chamber, the heat exchange pipeline is provided at the bottom of the inside of the bubbling reaction chamber, an integrated exhaust plate is fixedly connected to the bottom surface of the bubbling reaction chamber, and the air inlet is fixedly connected to the input end of the integrated exhaust plate.

[0010] A further improvement of the technical solution of the present invention is that: the top surface of the integrated exhaust plate is uniformly distributed and fixedly connected with multiple unidirectional jet ports; the input end of the heat exchange pipeline is fixedly connected with a circulating liquid pump; the input end of the circulating liquid pump is provided with a circulating cooling pipeline; and the circulating cooling pipeline is interconnected with the heat exchange pipeline.

[0011] A further improvement of the technical solution of the present invention is that: a homogenizing stirring rod is movably connected to the bubbling reaction chamber, a rotating rod is fixedly connected to the top surface of the homogenizing stirring rod, a power component is provided on the top surface of the bubbling reaction chamber, and the rotating rod is located at the output end of the power component.

[0012] A further improvement of the technical solution of the present invention is that: a filter ventilation valve is provided at the top output end of the bubbling reaction chamber, a filter element is movably connected inside the filter ventilation valve, and the gas supply pipe is fixedly connected to the output end of the filter ventilation valve.

[0013] A further improvement of the technical solution of the present invention is that: multiple protective nets are fixedly connected to the inside of the side of the filter support, two cooling fans are provided inside the filter support, and the circulating cooling pipe is movably connected inside the filter support.

[0014] A further improvement of the technical solution of the present invention is that: a buffer gas tank is fixedly connected inside the spray chamber, a surrounding infusion pipe is fixedly connected to the top of the inside of the spray chamber, a plurality of spray nozzles are fixedly connected to the output end of the surrounding infusion pipe, and an exhaust port is fixedly connected to the output end of the spray chamber.

[0015] A further improvement of the technical solution of the present invention is that: a fixed bracket is fixedly connected to the top of the spray chamber and the top of the infusion tube, the flow guide is fixedly connected to the bottom surface of the fixed bracket, a flow guide plate is provided in the middle of the bottom surface of the flow guide, and multiple flow channels are opened on the bottom surface of the flow guide.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0017] 1. This invention provides a flue gas combined absorption and treatment device based on a multi-process combination. The flue gas is transmitted to the interior of an integrated exhaust plate through an air inlet. The flue gas is then dispersed and transmitted to the interior of a bubbling reaction chamber through multiple unidirectional jet nozzles set on the top surface of the integrated exhaust plate. At the same time, the power component drives the homogenizing stirring rod to rotate through a rotating rod. The rotating homogenizing stirring rod ensures that the composition inside the liquid is relatively uniform. At the same time, the homogenizing stirring rod breaks up the bubbles to ensure that the gas inside the bubbles comes into contact with the components of the liquid. This efficiently completes the physical dissolution and chemical absorption of water-soluble pollutants in the flue gas, and effectively removes the corresponding impurities in the flue gas.

[0018] During the contact process between flue gas and solvent, the circulating liquid pump drives the internal liquid of the circulating cooling pipe and heat exchange pipe to circulate. Through the interaction between the circulating liquid and the high temperature inside the flue gas, the internal liquid temperature of the bubbling reaction chamber is maintained within a stable range, thereby improving absorption efficiency and maintaining operational stability.

[0019] 2. This invention provides a flue gas combined absorption and treatment device based on multiple process combinations. The gas that has undergone preliminary treatment inside the bubbling reaction chamber will be filtered by the filter element and transmitted to the inside of the gas delivery pipe as the gas pressure increases. It will then be further transmitted to the next stage of processing through the gas delivery pipe. The filter elements installed inside the two filter ventilation valves can filter the gas flow while ensuring the gas flow rate, intercepting and removing droplets carried by the flue gas from the bubbling liquid, as well as fine particles of solid by-products generated by the absorption reaction, thus preventing these impurities from entering the subsequent process units.

[0020] While the reaction is in progress, the liquid inside the heat exchange pipeline absorbs the temperature of the liquid inside the bubbling reaction chamber and transfers it to the circulating cooling pipeline. The filter support protects the circulating cooling pipeline, while the airflow driven by the cooling fan inside the circulating cooling pipeline carries away the heat of the liquid inside the circulating cooling pipeline, ensuring that the temperature of the liquid inside the bubbling reaction chamber can remain stable within a stable range for a long time.

[0021] 3. The present invention provides a flue gas combined absorption and treatment device based on multiple process combinations. The gas that has undergone preliminary treatment is transported to the inside of the spray chamber and temporarily stored in the inside of the buffer tank. The flue gas accumulated in the buffer tank is sprayed into the inside of the spray chamber through the opening on its top surface. The flue gas is transported in a specified direction by the guide plate and the guide groove set on the bottom surface of the guide hood.

[0022] The flue gas is guided by the guide hood and discharged relatively evenly in multiple directions. At this time, multiple spray nozzles set around the bottom of the infusion pipe will simultaneously spray the flue gas in multiple directions. By spraying the flue gas from multiple angles, the flue gas and liquid are fully contacted, capturing fine solid particles that are not completely intercepted by the filter element, as well as a small amount of gaseous pollutants remaining in the flue gas, further improving the cleanliness of the flue gas. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the flue gas pretreatment unit of the present invention;

[0025] Figure 3 For the present invention Figure 2 Cross-sectional view of the bubbling reaction chamber;

[0026] Figure 4 This is a schematic diagram of the gas pipeline structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the filter support structure of the present invention;

[0028] Figure 6 This is a cross-sectional view of the end-processing unit of the present invention;

[0029] Figure 7 This is a schematic diagram of the flow guide structure of the present invention.

[0030] In the diagram: 1. Base; 2. Flue gas pretreatment unit; 21. Bubbling reaction chamber; 22. Filter support; 23. Gas delivery pipe; 24. Air inlet; 25. Circulating cooling pipe; 26. Heat exchange pipe; 27. Integrated exhaust plate; 28. Homogenizing stirring rod; 29. ​​One-way jet nozzle; 210. Rotating rod; 211. Power assembly; 212. Circulating liquid pump; 213. Filter vent valve; 214. Filter element; 215. Cooling fan; 216. Protective net; 3. End-of-line treatment unit; 31. Spray chamber; 32. Buffer gas tank; 33. Surrounding liquid delivery pipe; 34. Spray nozzle; 35. Exhaust port; 36. Fixed bracket; 37. Flow guide hood; 38. Flow guide plate; 39. Drainage channel. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to embodiments:

[0032] Example 1: As Figure 1-7 As shown, the present invention provides a flue gas combined absorption and treatment device based on multiple process combinations, including a base 1. The top surface of the base 1 is provided with a flue gas pretreatment unit 2, which can sequentially perform bubbling absorption and filtration processes on the flue gas. The output end of the flue gas pretreatment unit 2 is provided with an end treatment unit 3, which can perform spraying and impurity removal on the flue gas. The flue gas pretreatment unit 2 includes a bubbling reaction chamber 21 fixedly installed on the top surface of the base 1 for completing the bubbling absorption process, a heat exchange pipeline 26 disposed inside the bubbling reaction chamber 21 for maintaining the temperature stable within a suitable range, and a gas supply pipe 23 disposed at the output end of the top surface of the bubbling reaction chamber 21 for further filtration of the flue gas.

[0033] The bubbling reaction chamber 21 is filled with a sufficient amount of solution for reacting with the flue gas. The air inlet 24 is located on the bottom surface of the bubbling reaction chamber 21, and the integrated exhaust plate 27 is connected to the air inlet 24. The one-way jet nozzle 29 on the top surface of the integrated exhaust plate 27 is equipped with a one-way valve made of rubber sheet. A certain gap is reserved between the homogenizing stirring rod 28 and the integrated exhaust plate 27.

[0034] An air inlet 24 is provided at the input end of the bubbling reaction chamber 21. A filter support 22 is fixedly connected to the side of the bubbling reaction chamber 21. A heat exchange pipeline 26 is provided at the bottom of the bubbling reaction chamber 21. An integrated exhaust plate 27 is fixedly connected to the bottom surface of the bubbling reaction chamber 21. The air inlet 24 is fixedly connected to the input end of the integrated exhaust plate 27. Multiple one-way jet nozzles 29 are evenly distributed and fixedly connected to the top surface of the integrated exhaust plate 27. A circulating liquid pump 212 is fixedly connected to the input end of the heat exchange pipeline 26. A circulating cooling pipeline 25 is provided at the input end of the circulating liquid pump 212. The circulating cooling pipeline 25 is connected to the heat exchange pipeline 26.

[0035] The heat exchange pipe 26 is fixedly connected inside the bubbling reaction chamber 21 and located above the homogenizing stirring rod 28. The heat exchange pipe 26 is filled with a liquid with a high specific heat capacity, which can quickly complete the heat exchange operation. The circulating liquid pump 212 will ensure the fluidity of the liquid between the circulating cooling pipe 25 and the heat exchange pipe 26.

[0036] In this embodiment, flue gas is transmitted to the interior of the integrated exhaust plate 27 through the air inlet 24. The flue gas is then dispersed and transmitted to the interior of the bubbling reaction chamber 21 through multiple one-way jet nozzles 29 provided on the top surface of the integrated exhaust plate 27. At the same time, the power component 211 drives the homogenizing stirring rod 28 to rotate through the rotating rod 210. The rotating homogenizing stirring rod 28 ensures that the composition inside the liquid is relatively uniform. At the same time, the homogenizing stirring rod 28 breaks up the bubbles to ensure that the gas inside the bubbles comes into contact with the components of the liquid, thus efficiently completing the physical dissolution and chemical absorption of water-soluble pollutants in the flue gas and effectively removing the corresponding impurities from the flue gas.

[0037] During the contact process between flue gas and solvent, the circulating liquid pump 212 drives the internal liquid of the circulating cooling pipe 25 and heat exchange pipe 26 to circulate. Through the interaction between the circulating liquid and the high temperature inside the flue gas, the internal liquid temperature of the bubbling reaction chamber 21 is maintained within a stable range, thereby improving absorption efficiency and maintaining operational stability.

[0038] Example 2: Figure 1-7 As shown, based on Embodiment 1, the present invention provides a technical solution: preferably, a homogenizing stirring rod 28 is movably connected to the bubbling reaction chamber 21, a rotating rod 210 is fixedly connected to the top surface of the homogenizing stirring rod 28, a power assembly 211 is provided on the top surface of the bubbling reaction chamber 21, and the rotating rod 210 is provided at the output end of the power assembly 211.

[0039] There are two filter vent valves 213, which are fixedly connected to the two output ends on the top surface of the bubbling reaction chamber 21. The filter element 214 is installed inside the top surface of the filter vent valve 213 to ensure the linkage between the filter vent valve 213 and the gas supply pipe 23 while preventing the flue gas from leaking from the top surface of the filter vent valve 213.

[0040] A filter vent valve 213 is provided at the top output end of the bubbling reaction chamber 21. A filter element 214 is movably connected inside the filter vent valve 213. An air supply pipe 23 is fixedly connected to the output end of the filter vent valve 213. Multiple protective nets 216 are fixedly connected inside the side of the filter support 22. Two cooling fans 215 are provided inside the filter support 22. A circulating cooling pipe 25 is movably connected inside the filter support 22.

[0041] The filter support 22 is mainly used to protect the circulating cooling pipe 25. The protective net 216 is mainly used to ensure the protection of the circulating cooling pipe 25 while ensuring the airflow inside the filter support 22. The two cooling fans 215 can blow the circulating cooling pipe 25 and remove the heat of the liquid inside the cooling fan 215 through the gas flow.

[0042] In this embodiment, the gas that has undergone preliminary treatment inside the bubbling reaction chamber 21 will be filtered by the filter element 214 and transmitted to the inside of the gas supply pipe 23 as the gas pressure increases. After passing through the gas supply pipe 23, it will be further transmitted to the next stage of processing. The filter element 214 installed inside the two filter ventilation valves 213 can filter the airflow while ensuring the airflow rate, intercept and remove the droplets carried by the flue gas from the bubbling liquid, and absorb the fine particles of solid by-products generated by the reaction, so as to prevent these impurities from entering the subsequent process units.

[0043] While the reaction is in progress, the liquid inside the heat exchange pipe 26 absorbs the temperature of the liquid inside the bubbling reaction chamber 21 and transfers it to the circulating cooling pipe 25. The filter support 22 protects the circulating cooling pipe 25, while the airflow driven by the cooling fan 215 inside the circulating cooling pipe 25 carries away the heat of the liquid inside the circulating cooling pipe 25, ensuring that the temperature of the liquid inside the bubbling reaction chamber 21 can remain stable within a stable range for a long time.

[0044] Example 3: As Figure 1-7 As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the end treatment unit 3 includes a spray chamber 31 disposed at the output end of the flue gas pretreatment unit 2 to separate flue gas and liquid, a guide hood 37 disposed inside the spray chamber 31 to guide the airflow, a buffer gas tank 32 fixedly connected inside the spray chamber 31, a surrounding infusion pipe 33 fixedly connected to the top of the inside of the spray chamber 31, a plurality of spray ports 34 fixedly connected to the output end of the surrounding infusion pipe 33, and an exhaust port 35 fixedly connected to the output end of the spray chamber 31.

[0045] The interior of the spray chamber 31 is inclined and a drain outlet is provided at its lowest point. The internal cavity of the buffer gas tank 32 is large enough to temporarily contain the flue gas entering the spray chamber 31. The output end of the buffer gas tank 32 is located on its top surface. The guide hood 37 can guide the airflow.

[0046] A fixed bracket 36 is fixedly connected to the top of the spray chamber 31 and the top of the infusion tube 33. A flow guide 37 is fixedly connected to the bottom surface of the fixed bracket 36. A flow guide plate 38 is provided in the middle of the bottom surface of the flow guide 37. Multiple flow channels 39 are opened on the bottom surface of the flow guide 37.

[0047] The fixed bracket 36 fixes the flow guide 37 inside the spray chamber 31. The tilt angle of the bottom surface of the flow guide 37 is adapted to the tilt angle of the top surface of the buffer gas tank 32. The flow guide plate 38 is hemispherical in shape. The flow channels 39 are evenly distributed on the bottom surface of the flow guide 37. Multiple spray ports 34 are fixedly connected around the bottom surface of the infusion pipe 33, and the positions of the spray ports 34 correspond one-to-one with the positions of the flow guide 37.

[0048] In this embodiment, the gas that has undergone preliminary treatment is transported to the interior of the spray chamber 31 and temporarily stored in the interior of the buffer gas tank 32. The flue gas accumulated inside the buffer gas tank 32 is sprayed into the interior of the spray chamber 31 through the opening on its top surface. The flue gas is then transported in a specified direction by the guide plate 38 and the guide groove 39 provided on the bottom surface of the guide hood 37.

[0049] The flue gas is guided by the guide hood 37 and discharged relatively evenly in multiple directions. At this time, multiple spray nozzles 34 set around the bottom surface of the infusion pipe 33 will simultaneously spray the flue gas in multiple directions. By spraying the flue gas from multiple angles, the flue gas and liquid are fully contacted, capturing fine solid particles that are not completely intercepted by the filter element 214, as well as a small amount of gaseous pollutants remaining in the flue gas, further improving the cleanliness of the flue gas.

[0050] The working principle of this flue gas combined absorption and treatment device based on multiple process combinations will be explained in detail below.

[0051] like Figure 1-7 As shown, the flue gas is transmitted to the interior of the integrated exhaust plate 27 through the air inlet 24. The flue gas is then dispersed and transmitted to the interior of the bubbling reaction chamber 21 through multiple one-way jet nozzles 29 set on the top surface of the integrated exhaust plate 27. At the same time, the power component 211 drives the homogenizing stirring rod 28 to rotate through the rotating rod 210. The rotating homogenizing stirring rod 28 ensures that the composition inside the liquid is relatively uniform. At the same time, the homogenizing stirring rod 28 breaks up the bubbles to ensure that the gas inside the bubbles comes into contact with the liquid components, thus efficiently completing the physical dissolution and chemical absorption of water-soluble pollutants in the flue gas and effectively removing the corresponding impurities in the flue gas.

[0052] During the contact process between the flue gas and the solvent, the circulating liquid pump 212 drives the circulating cooling pipe 25 and the heat exchange pipe 26 to circulate the liquid. The liquid inside the heat exchange pipe 26 absorbs the temperature of the liquid inside the bubbling reaction chamber 21 and transfers it to the circulating cooling pipe 25. The filter support 22 protects the circulating cooling pipe 25, while the airflow driven by the cooling fan 215 inside the circulating cooling pipe 25 carries away the heat of the liquid inside the circulating cooling pipe 25, ensuring that the device can keep the temperature of the liquid inside the bubbling reaction chamber 21 stable within a stable range for a long time.

[0053] As the gas pressure increases, the gas that has undergone preliminary treatment inside the bubbling reaction chamber 21 will be filtered by the filter element 214 and then transmitted to the gas supply pipe 23. After passing through the gas supply pipe 23, it will be further transmitted to the next stage of processing. The filter elements 214 installed inside the two filter ventilation valves 213 can filter the airflow while ensuring the airflow rate, intercept and remove droplets carried by the flue gas from the bubbling liquid, and absorb fine particles of solid by-products generated by the reaction, so as to prevent these impurities from entering the subsequent process units.

[0054] The pre-treated gas is transported to the interior of the spray chamber 31 and temporarily stored inside the buffer gas tank 32. The flue gas accumulated inside the buffer gas tank 32 is sprayed into the interior of the spray chamber 31 through the opening on its top surface. The flue gas is then guided by the guide plate 38 and the diversion groove 39 set on the bottom surface of the guide hood 37 to be transported in the specified direction.

[0055] The flue gas is guided by the guide hood 37 and discharged relatively evenly in multiple directions. At this time, multiple spray nozzles 34 set around the bottom surface of the infusion pipe 33 will simultaneously spray the flue gas in multiple directions. By spraying the flue gas from multiple angles, the flue gas and liquid are fully contacted, capturing fine solid particles that are not completely intercepted by the filter element 214, as well as a small amount of gaseous pollutants remaining in the flue gas, further improving the cleanliness of the flue gas.

[0056] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements made without departing from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A flue gas combined absorption and treatment device based on multiple process combinations, comprising a base (1), characterized in that: The top surface of the base (1) is provided with a flue gas pretreatment unit (2) that can sequentially perform bubbling absorption and filtration processes on the flue gas, and the output end of the flue gas pretreatment unit (2) is provided with an end treatment unit (3) that can perform spray cleaning of the flue gas. The flue gas pretreatment unit (2) includes a bubbling reaction chamber (21) fixedly installed on the top surface of the base (1) for completing the bubbling absorption process, a heat exchange pipeline (26) set inside the bubbling reaction chamber (21) for maintaining the temperature stable in a suitable range, and a gas transmission pipe (23) set at the output end of the top surface of the bubbling reaction chamber (21) for further filtering the flue gas. The end-of-line treatment unit (3) includes a spray chamber (31) that can separate flue gas and liquid at the output end of the flue gas pretreatment unit (2) and a guide hood (37) that is installed inside the spray chamber (31) to guide the flow of air.

2. The flue gas combined absorption and treatment device based on multi-process combination according to claim 1, characterized in that: The bubbling reaction chamber (21) is provided with an air inlet (24) at its input end. A filter support (22) is fixedly connected to the side of the bubbling reaction chamber (21). The heat exchange pipeline (26) is located at the bottom of the bubbling reaction chamber (21). An integrated exhaust plate (27) is fixedly connected to the bottom surface of the bubbling reaction chamber (21). The air inlet (24) is fixedly connected to the input end of the integrated exhaust plate (27).

3. The flue gas combined absorption and treatment device based on multi-process combination according to claim 2, characterized in that: The top surface of the integrated exhaust plate (27) is uniformly distributed with a number of fixed one-way jet ports (29). The input end of the heat exchange pipeline (26) is fixedly connected to a circulating liquid pump (212). The input end of the circulating liquid pump (212) is provided with a circulating cooling pipeline (25). The circulating cooling pipeline (25) is interconnected with the heat exchange pipeline (26).

4. The flue gas combined absorption and treatment device based on multi-process combination according to claim 3, characterized in that: The bubbling reaction chamber (21) is movably connected to a homogenizing stirring rod (28), and a rotating rod (210) is fixedly connected to the top surface of the homogenizing stirring rod (28). A power assembly (211) is provided on the top surface of the bubbling reaction chamber (21), and the rotating rod (210) is located at the output end of the power assembly (211).

5. The flue gas combined absorption and treatment device based on multi-process combination according to claim 4, characterized in that: The top surface of the bubbling reaction chamber (21) is provided with a filter ventilation valve (213), and a filter element (214) is movably connected inside the filter ventilation valve (213). The gas supply pipe (23) is fixedly connected to the output end of the filter ventilation valve (213).

6. The flue gas combined absorption and treatment device based on multi-process combination according to claim 5, characterized in that: Multiple protective nets (216) are fixedly connected to the inside of the side of the filter support (22), and two cooling fans (215) are installed inside the filter support (22). The circulating cooling pipe (25) is movably connected inside the filter support (22).

7. The flue gas combined absorption and treatment device based on multi-process combination according to claim 6, characterized in that: The spray chamber (31) is fixedly connected to a buffer gas tank (32), the top of the spray chamber (31) is fixedly connected to a surrounding infusion tube (33), the output end of the surrounding infusion tube (33) is fixedly connected to a plurality of spray nozzles (34), and the output end of the spray chamber (31) is fixedly connected to an exhaust port (35).

8. The flue gas combined absorption and treatment device based on multi-process combination according to claim 7, characterized in that: The spray chamber (31) is fixedly connected to the top of the inside and the top of the infusion tube (33) by a fixed bracket (36). The flow guide (37) is fixedly connected to the bottom surface of the fixed bracket (36). A flow guide plate (38) is provided in the middle of the bottom surface of the flow guide (37). Multiple flow channels (39) are opened on the bottom surface of the flow guide (37).

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