A synergistic treatment and integrated utilization system for incineration flue gas and solid waste

Abstract

This invention discloses a comprehensive system for the synergistic treatment and utilization of incineration flue gas and solid waste. A grading and sorting unit classifies collected waste activated carbon according to its renewability. Waste activated carbon products with low regeneration rates are used as raw materials and mixed with desulfurization gypsum in a homogenizing and granulating unit to produce a semi-finished purification agent. This semi-finished agent is then processed into a finished purification agent through an activation and regeneration unit. Waste activated carbon products with high regeneration rates are directly fed into the activation and regeneration unit to generate regenerated activated carbon. A flue gas purification unit collects the finished purification agent and regenerated activated carbon produced in the activation and regeneration unit and purifies the flue gas discharged from the activation and regeneration unit. This invention reduces energy waste and carbon emissions by utilizing the calorific value of incineration flue gas and by synergistically treating solid waste through grading and sorting to regenerate activated carbon and manufacture finished purification agents. This improves the resource utilization capacity of solid waste without significantly increasing flue gas emissions.

Description

Technical Field

[0001] This invention relates to the field of incineration flue gas and solid waste treatment technology, and particularly to a synergistic treatment and comprehensive utilization system for incineration flue gas and solid waste. Background Technology

[0002] Traditional solid waste incineration flue gas purification units include a waste heat boiler, a quench tower, a circulating fluidized bed desulfurization system, a bag filter, a wet desulfurization tower, a flue gas reheater, a fan, and an exhaust outlet. The incinerator burns waste and discharges residue. The flue gas produced (typically at 1100–1200°C) carries a large amount of heat, which is mostly lost through forced cooling in the quench tower and wet desulfurization tower, except for a small portion absorbed by the waste heat boiler. Simultaneously, steam is required for reheating to increase the exhaust gas temperature, resulting in significant energy waste. Furthermore, both the quench tower and wet desulfurization tower consume large amounts of water, which enters the flue gas. To ensure no noticeable white smoke at the exhaust outlet, steam is also required for reheating the flue gas, leading to substantial water waste throughout the process.

[0003] In recent years, activated carbon has been widely used as an excellent purification material, and market demand is increasing. However, activated carbon production is a resource-intensive and energy-intensive process. Once saturated, it cannot be regenerated and recycled, resulting in serious waste of resources and energy and secondary pollution. Traditional activated carbon regeneration processes use coal gas or diesel as energy and water vapor or acids or alkalis as regeneration media. Although this regenerates waste activated carbon (saturated activated carbon), it still generates a large amount of pollution and carbon emissions.

[0004] This patented technology addresses the problems of heat waste in existing incineration flue gas and low energy and resource utilization efficiency during the purification process. It combines the market demand for solid waste resource utilization and activated carbon regeneration to form a collaborative governance and comprehensive utilization solution. Summary of the Invention

[0005] In response to the technical problems mentioned in the background section, this invention provides a comprehensive system for the synergistic treatment and utilization of incineration flue gas and solid waste.

[0006] To achieve the above objectives, the present invention provides a comprehensive system for the synergistic treatment and utilization of incineration flue gas and solid waste, comprising a graded and graded unit, a uniform mixing and granulation unit, an activation and regeneration unit, an incineration system, and a flue gas purification unit.

[0007] The grading and sorting unit is used to classify the collected waste activated carbon according to its renewability; the waste activated carbon products with low regeneration rate are used as raw materials and combined with desulfurization gypsum and fed into the homogenization and granulation unit to make a semi-finished purification agent, and then processed into a finished purification agent through the activation and regeneration unit; the waste activated carbon products with high regeneration rate are directly fed into the activation and regeneration unit to generate regenerated activated carbon.

[0008] The incineration system is used to supply flue gas to the activation and regeneration unit to provide regeneration heat;

[0009] The flue gas purification unit is used to collect the finished purification agent and regenerated activated carbon produced by the activation and regeneration unit, and to purify the flue gas discharged from the activation and regeneration unit.

[0010] Further, the homogenization and granulation unit includes a crusher, a grinding mill, a shredder, a kneader, a granulator, and a belt dryer that sequentially transfer raw materials via a transfer device; the crusher is used to crush the dried portion of the raw material into particles with a diameter of less than 2 cm and feed them into the grinding mill; the shredder is used to shred the sticky portion of the raw material into fragments with a size of less than 0.5 cm and feed them into the grinding mill; the grinding mill is used to mix the particles and fragments and grind them into powder with a particle size of less than 200 mesh; the kneader is used to knead and homogenize the shredded mixture; the granulator is used to knead and granulate the homogenized activated carbon product to produce cylindrical activated carbon products of 9-12 mm, and the cylindrical activated carbon products are then fed into the belt dryer and dried at room temperature for 2-6 hours to produce a semi-finished flue gas purifier.

[0011] Furthermore, the activation and regeneration unit includes a first waste heat boiler and an activation furnace that are interconnected. The first waste heat boiler is connected to the flue gas end of the incineration system and is used to cool the high-temperature flue gas collected from the incineration system. The activation furnace collects the cooled high-temperature flue gas and introduces steam to activate the semi-finished flue gas purifier produced by the homogenization and granulation unit into a finished flue gas purifier.

[0012] Furthermore, the flue gas purification unit includes a screening and dust removal subunit and a second combustion chamber, a second waste heat boiler, a cyclone dust collector, an integrated purification tower, a bag filter, and a fan connected in sequence by pipelines; the screening and dust removal subunit is connected to the discharge port of the activation furnace and is used to remove dust from the finished flue gas purifying agent and the regenerated activated carbon; the second combustion chamber is connected to the gas outlet of the activation furnace and is used to perform secondary combustion of the flue gas discharged from the activation and regeneration unit; the second waste heat boiler is used to cool the flue gas after combustion, and the cyclone dust collector, integrated purification tower, and bag filter are used to remove dust from the cooled flue gas; the fan is used to provide driving force for flue gas transmission.

[0013] Furthermore, the integrated purification tower is composed of multiple vertically arranged tower layers, with a purification agent layer at the front and an activated carbon layer at the rear.

[0014] Furthermore, the incineration system includes an incinerator and a first and a second combustion chamber.

[0015] Furthermore, the activation unit also includes an externally heated regeneration furnace, which is used to connect the outer shell of the externally heated regeneration furnace to the flue gas end of the incineration system and to connect in parallel with the first waste heat boiler through a pipeline, with one of them selected for startup; the externally heated regeneration furnace is used to recover the high-temperature flue gas produced by the incineration system and to introduce high-temperature steam to blow off and regenerate the waste activated carbon particles placed in the inner furnace of the externally heated regeneration furnace; the activation furnace collects the high-temperature flue gas that has been cooled in the outer shell of the externally heated regeneration furnace.

[0016] Furthermore, the activation and regeneration unit also includes an internally heated regeneration furnace, which is connected to the flue gas end of the incineration system and is connected in parallel to the first waste heat boiler, the activation furnace, and the externally heated regeneration furnace. The internally heated regeneration furnace is used to recover the high-temperature flue gas produced by the incineration system and to introduce high-temperature steam to heat and regenerate the waste activated carbon particles placed in the internally heated regeneration furnace.

[0017] Furthermore, the activation and regeneration unit also includes a tunnel kiln through which high-temperature steam is introduced to regenerate the activated carbon blocks.

[0018] Furthermore, the externally heated regeneration furnace, the internally heated regeneration furnace, and the tunnel kiln are all connected to the screening and dust removal subunit for dust removal treatment of the regenerated activated carbon.

[0019] Compared with the prior art, the advantages of the present invention are as follows: The present invention reduces energy waste and carbon emissions by utilizing the heat of incineration flue gas in a graded and targeted manner and by classifying and coordinating the treatment of solid waste to regenerate activated carbon and manufacture finished purification agents, thereby improving the resource utilization capacity of solid waste without significantly increasing the amount of flue gas. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the integrated treatment and utilization system for incineration flue gas and solid waste of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall structure of the dry integrated purification tower of the present invention.

[0022] Among them, 1-crusher, 2-grinding mill, 3-shredder, 4-kneader, 5-granulator, 6-belt dryer, 7-first waste heat boiler, 8-activation furnace, 9-external heating regeneration furnace, 10-internal heating regeneration furnace, 11-second combustion chamber, 12-second waste heat boiler, 13-cyclone dust collector, 14-dry integrated purification tower, 15-bag filter dust collector, 16-fan, 17-incinerator, 18-first and second combustion chambers, 19-tunnel kiln,

[0023] 14-1-Purifying agent layer, 14-2-Activated carbon layer. Detailed Implementation

[0024] The following description, with reference to the accompanying drawings, is provided to facilitate understanding of the technical solutions of the present invention by those skilled in the art. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention.

[0025] In the following detailed description, numerous specific details are set forth for ease of explanation to provide a full understanding of embodiments of the invention. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts of the invention.

[0026] Please see Figure 1 This is a schematic diagram of the overall structure of the integrated treatment and utilization system for incineration flue gas and solid waste of the present invention. It includes four units: a grading and sorting unit, a homogenization and granulation unit, an activation and regeneration unit, and a flue gas purification unit. The grading and sorting unit classifies the collected waste activated carbon according to its renewability. Renewable activated carbon products are recycled in the activation and regeneration unit. Activated carbon products with low regeneration rates are used as raw materials and mixed with desulfurization gypsum requiring solid waste disposal in the homogenization and granulation unit to produce a semi-finished purification agent, which is then processed into a finished purification agent in the activation and regeneration unit. The heat for the activation and regeneration unit comes from the incineration system. The flue gas purification unit collects and utilizes the recycled activated carbon and purification agent to purify the flue gas discharged from the activation and regeneration unit. Simultaneously, the residue discharged from the incineration system can also be added to the homogenization and granulation unit for simultaneous processing with the aforementioned raw materials, thereby forming a regeneration cycle.

[0027] Please continue to refer to this. Figure 1 The grading and sorting unit first classifies the collected waste activated carbon according to its regenerability. Waste activated carbon products with high regenerability include columnar or irregularly shaped, low-dust, sticky waste activated carbon granules and intact, low-dust waste saturated activated carbon blocks. These products can be used directly after regeneration. Activated carbon products with low regenerability include waste activated carbon fiber products, waste activated carbon powder, incomplete or highly dusty waste activated carbon blocks, and columnar or irregularly shaped activated carbon with high dust content or agglomeration. These are used as raw materials for purification agents. The aforementioned columnar or irregularly shaped, low-dust, sticky waste activated carbon or activated coke is sieved and graded through multiple stages into particles of different sizes: larger than 12mm, 12–8mm, 8–3mm, and smaller than 3mm. Particles and powders larger than 12mm and smaller than 3mm can be used as raw materials for purification agents.

[0028] In this embodiment, the uniform mixing and granulation unit mixes the residue discharged from the incineration system, the collected activated carbon products with low regeneration rate, desulfurization gypsum, and limestone according to the following proportions: 5-15 parts of residue discharged from the incinerator, a total of 35-60 parts of collected activated carbon products with low regeneration rate, 15-20 parts of waste desulfurization gypsum, and 20-40 parts of limestone, calculated according to dry matter mass, to prepare a semi-finished purification agent, which is then introduced into the activation furnace 8 of the activation and regeneration unit to form the finished flue gas purification agent.

[0029] In this embodiment, the uniform mixing and granulation unit includes a crusher 1, a grinding mill 2, a shredder 3, a kneader 4, a granulator 5, and a belt dryer 6.

[0030] Each piece of equipment sequentially transfers raw materials via a conveyor system. The specific implementation is as follows: First, based on the viscosity of the collected activated carbon products, they are divided into dry activated carbon products and sticky activated carbon products. Dry activated carbon products typically include dry waste activated carbon blocks, carbon fibers, carbon powder, etc., while sticky activated carbon products typically include oily waste activated carbon blocks, carbon fibers, carbon powder, and watery waste desulfurization gypsum, etc. According to an appropriate ratio, the dry activated carbon products are crushed to a particle size of less than 2 cm using crusher 1. Crusher 1 is typically a hammer crusher.

[0031] Next, the crushed activated carbon product is transferred to grinding mill 2 for pulverization, with a particle size of less than 200 mesh, using a Raymond mill. In practice, to adjust the dryness during the grinding process, some dry powder can be removed proportionally to achieve uniform grinding.

[0032] Next, the obtained powder and viscous activated carbon products are mixed and fed into shredder 3 to be shredded into pieces smaller than 0.5cm. The shredded activated carbon products and dry powder activated carbon products are fed into kneader 4, water is added to adjust the moisture content to 20-30%, and kneaded and mixed evenly for about 30 minutes. The mixed activated carbon products are then granulated by granulator 5 to form material columns with a size of 9mm.

[0033] Finally, the prepared material column is sent to belt dryer 6 for room temperature drying for 2 hours to produce a semi-finished purification agent, and then naturally dried at a temperature above 10℃ for more than 24 hours. The specific drying time can be adjusted according to the actual raw materials and temperature.

[0034] In this embodiment, the activation and regeneration unit includes a first waste heat boiler 7 and an activation furnace 8 connected to each other. The first waste heat boiler 7 is connected to the flue gas end of the incineration system and is used to cool the high-temperature flue gas collected from the incineration system. The activation furnace 8 collects the cooled high-temperature flue gas and introduces steam to activate the semi-finished self-made flue gas purifier produced by the homogenization and granulation unit into a finished self-made flue gas purifier. In specific implementation of this embodiment, the incineration system uses an incinerator 17 and a first secondary combustion chamber 18 for processing.

[0035] Typically, the flue gas temperature is above 1100℃. It is cooled to 500-600℃ by the first waste heat boiler 7 and then fed into the activation furnace 8. The semi-finished purification agent is added to the activation furnace via a vibrating feeder, and steam is introduced. Activation is performed at 500-600℃ for 0.5-1.5 hours to produce a flue gas purification agent. In practice, since the finished purification agent usually contains substandard components, it needs to be processed through a screening and dust removal subunit to remove these substandard components. These substandard components can be returned to the homogenization and granulation unit for re-grinding and batching. The screening and dust removal subunit can be completed using a vibrating screen combined with a pneumatic ash removal system.

[0036] In this embodiment, the flue gas purification unit includes a screening and dust removal subunit, as well as a second secondary combustion chamber 11, a second waste heat boiler 12, a cyclone dust collector 13, a dry integrated purification tower 14, a bag filter 15, and a fan 16 connected in sequence by pipelines. The fan 16 provides driving force for flue gas transmission. In specific implementation, the flue gas discharged from the hot processing process is introduced into the flue gas purification unit and enters the second secondary combustion chamber 11. In the second secondary combustion chamber 11, the front flue gas undergoes secondary combustion, with the combustion temperature reaching above 1100°C and the residence time exceeding 3 seconds. The flue gas is then introduced into the second waste heat boiler 12 for cooling to 300°C. After cooling, the flue gas is filtered by the cyclone dust collector 13 and then sent to the dry integrated purification tower 14 for flue gas deacidification and dioxin removal treatment. Finally, it is filtered by the tail bag filter 15 before being discharged.

[0037] like Figure 2As shown, in specific implementation, the dry integrated purification tower 14 consists of multiple vertically arranged tower layers. The flue gas flow direction of the dry integrated purification tower is perpendicular to the purification agent. The front part is the purification agent layer 14-1, and the rear part is filled with activated carbon layer 14-2. The front purification agent layer 14-1 can be directly filled with the purification agent prepared by this system for flue gas deacidification and dioxin removal, realizing the immediate use of resources. The rear activated carbon layer 14-2 is filled with activated carbon for further flue gas purification, ensuring that the discharge meets the standards. Both the purification agent and activated carbon can be circulated online to ensure that the outlet flue gas is within the specified limits. Saturated purification agent can be disposed of by landfill, and saturated activated carbon particles can be regenerated and reused. The maximum number of regeneration cycles is 3 to 5, after which it can be used again for purification agent preparation. In this embodiment, the dry integrated purification tower 14 is used to replace traditional complex equipment such as quench towers, circulating fluidized beds, wet deacidification towers, and regenerator units, simplifying the system structure and saving space. The multi-layer purification unit of the dry integrated purification tower 14 is a dry system, avoiding the large-scale use of water resources and waste liquid disposal of the original system, saving water consumption and reducing sewage discharge. At the same time, it avoids energy loss during cooling and heating processes, maximizing the cooling effect of the waste heat boiler. In this embodiment, the dry integrated purification tower is a cross-flow purification tower, with the purification agent and flue gas direction perpendicular, allowing for online replacement of different purification materials, such as purification agents and activated coke, to meet different emission standards.

[0038] The parameters of the self-made flue gas purifier in this example, after monitoring, achieved a desulfurization value ≥25mg / g, a denitrification value ≥60%, and a pH of 9–11. The purifier was used for flue gas purification in this example, achieving resource recycling.

[0039] In this embodiment, the activation and regeneration unit further includes an externally heated regeneration furnace 9. In specific implementation, regenerable columnar or amorphous activated carbon is regenerated through the externally heated regeneration furnace 9 of the activation and regeneration unit. The outer shell of the externally heated regeneration furnace 9 is connected to the flue gas end of the incineration system and is connected in parallel with the first waste heat boiler 7 through a pipeline. One of the two is selected for startup. The externally heated regeneration furnace 9 is used to recover the high-temperature flue gas produced by the incineration system and to introduce high-temperature steam to blow off and regenerate the saturated activated carbon particles placed in the inner furnace of the externally heated regeneration furnace 9. The activation furnace 8 collects the high-temperature flue gas that has been cooled in the outer shell of the externally heated regeneration furnace 9.

[0040] Because the flue gas in the externally heated regeneration furnace 9 does not directly contact the saturated activated carbon, the flue gas only provides heat. Impurities in the flue gas do not directly mix with the activated carbon, resulting in the production of products with higher cleanliness. However, the indirect heating process leads to greater heat loss and lower output. Since the incineration flue gas temperature is approximately 1100℃ or higher, it is introduced into the outer shell of the externally heated regeneration furnace 9 to heat the inner furnace. Simultaneously, saturated activated carbon granules are fed into the inner furnace for heating and regeneration. The regeneration temperature is adjusted to 900–1100℃, and steam is introduced for stripping regeneration. The regeneration time is 0.5–1 hour. Meanwhile, the stripped activated carbon is screened and dust-removed to remove defective products. These defective products can be returned to the homogenization and granulation unit as raw materials for purification agents. The screening and dust removal are accomplished using a vibrating screen combined with a pneumatic ash removal system.

[0041] In addition, in this embodiment, the activation and regeneration unit also includes an internally heated regeneration furnace 10. Regenerable columnar or amorphous activated carbon can also be regenerated through the internally heated regeneration furnace 10 of the activation unit. The internally heated regeneration furnace 10 is connected to the flue gas end of the incineration system and is connected in parallel with the first waste heat boiler 7, the activation furnace 8 and the externally heated regeneration furnace 9, respectively. The internally heated regeneration furnace 10 is used to recover the high-temperature flue gas produced by the incineration system and to introduce high-temperature steam to heat and regenerate the saturated activated carbon particles placed in the internally heated regeneration furnace 10.

[0042] Because the flue gas comes into contact with saturated activated carbon inside the internally heated regeneration furnace 10, impurities in the flue gas will directly mix with the activated carbon. Therefore, the internally heated regeneration furnace 10 is mainly used for regenerating products with lower quality requirements for activated carbon, and has a higher output. The exhaust flue gas with a temperature above 1100℃ is introduced into the internally heated regeneration furnace 10, and steam is introduced to feed the saturated activated carbon particles into the furnace for heating and regeneration. The regeneration temperature is adjusted to 900-1100℃, and the time is about 0.5-1.5 hours.

[0043] Regenerable, intact, and low-dust waste activated carbon blocks are regenerated in tunnel kiln 19. The waste activated carbon blocks can be stacked on transfer pallets and then transferred to the tunnel kiln by a transfer trolley. High-temperature steam is introduced to regenerate the saturated activated carbon blocks at a temperature of 200-300℃ for 1-1.5 hours. The high-temperature steam is supplied by the first waste heat boiler 7 and the second waste heat boiler 12.

[0044] In addition, in this embodiment, the externally heated regeneration furnace 9, the internally heated regeneration furnace 10, and the tunnel kiln 19 are all connected to the screening and dust removal subunit for dust removal treatment of the regenerated activated carbon.

[0045] In this example, the regenerated columnar activated carbon achieved an iodine adsorption value of ≥800mg / g and a CTC adsorption value of ≥50%, meeting the regeneration requirements.

[0046] In summary, the integrated purification system for comprehensive utilization of incineration flue gas designed in this invention increases the amount of purifying agents and regenerated activated carbon for solid waste resource utilization by adding an activation and regeneration unit to the original incineration system, thereby improving the solid waste system's treatment capacity without significantly increasing flue gas emissions. This system reduces energy waste and carbon emissions by classifying and utilizing saturated activated carbon blocks, granules, powders, and fibers. Low-quality activated carbon granules are regenerated using an internally heated regeneration furnace, while high-quality activated carbon granules are regenerated using an externally heated regeneration furnace. Purifying agents for flue gas are prepared through kneading, granulation, drying, and calcination, achieving solid waste resource utilization.

[0047] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A system for synergistically treating and comprehensively utilizing incineration flue gas and solid waste, characterized in that, The system comprises a classification and quality separation unit, a uniform mixing and granulation unit, an activation and regeneration unit, a burning system and a flue gas purification unit. The classification and quality separation unit is used for classifying the collected waste activated carbon according to the regeneration rate; the waste activated carbon products with low regeneration rate classified are used as raw materials together with desulfurization gypsum to be fed into the uniform mixing and granulation unit to make semi-finished product purification agents, and the semi-finished product purification agents are fed into the activation and regeneration unit to make finished product purification agents; the waste activated carbon products with high regeneration rate classified are directly fed into the activation and regeneration unit to make regenerated activated carbon. The burning system is used for feeding flue gas to the activation and regeneration unit to provide regeneration heat. The flue gas purification unit is used for collecting and utilizing the finished product purification agents and regenerated activated carbon made by the activation and regeneration unit, and performing purification operation on the flue gas discharged by the activation and regeneration unit. The uniform mixing and granulation unit comprises a crusher (1), a pulverizer (2), a shredder (3), a kneader (4), a granulator (5) and a belt dryer (6) for raw material transmission by a transfer device; the crusher (1) is used for crushing dry parts in the raw materials into particles with a particle size of 2 cm or less and feeding the particles into the pulverizer (2); the shredder (3) is used for shredding sticky parts in the raw materials into blocks with a size of 0.5 cm or less and feeding the blocks into the pulverizer (2); the pulverizer (2) is used for mixing the particles and blocks and grinding them into powders with a particle size of 200 mesh or less; the kneader (4) is used for uniformly mixing the mixture; the granulator (5) is used for uniformly mixing the activated carbon products, feeding the activated carbon products into the granulator to be kneaded and granulated to make cylindrical activated carbon products with a size of 9-12 mm, and feeding the cylindrical activated carbon products into the belt dryer (6) to be dried at a normal temperature for 2-6 hours to make semi-finished product flue gas purification agents; The activation and regeneration unit comprises a first waste heat boiler (7) and an activation furnace (8) which are connected to each other; the first waste heat boiler (7) is connected to the flue gas end of the burning system and is used for cooling the collected high-temperature flue gas generated by the burning system; the activation furnace (8) collects the cooled high-temperature flue gas and feeds steam into the semi-finished product flue gas purification agents made by the uniform mixing and granulation unit to activate the semi-finished product flue gas purification agents into finished product flue gas purification agents; The flue gas purification unit comprises a screening and dust removal subunit and a second combustion chamber (11), a second waste heat boiler (12), a cyclone dust collector (13), an integrated purification tower (14), a bag-type dust collector (15) and a fan (16) which are sequentially connected by connecting pipelines; the screening and dust removal subunit is connected to the discharge port of the activation furnace (8) and is used for dust removal treatment of the finished product flue gas purification agents; the second combustion chamber (11) is connected to the gas outlet of the activation furnace (8) and is used for secondary combustion of the flue gas discharged by the activation and regeneration unit; the second waste heat boiler (12) is used for cooling the flue gas after combustion; the cyclone dust collector (13), the integrated purification tower (14) and the bag-type dust collector (15) are used for dust removal and purification treatment of the cooled flue gas; and the fan (16) is used for providing driving force for flue gas transmission. The integrated purification tower (14) is composed of multiple vertically arranged tower layers, the front part of which is a purification agent layer (14-1), and the rear part of which is filled with an activated carbon layer (14-2); the incineration system comprises an incinerator (17) and a first secondary combustion chamber (18); The mixed granulation unit mixes the residues discharged by the incineration system, the collected activated carbon products with low regeneration rate, desulfurization gypsum and limestone to form semi-finished purification agents, which are then fed into the activation regeneration unit activation furnace (8) to form finished flue gas purification agents; the front purification agent layer (14-1) is directly filled with the purification agents prepared by the system; the rear activated carbon layer (14-2) is filled with activated carbon for further flue gas purification; the saturated activated carbon particles are regenerated and reused; The activation regeneration unit further comprises an external heating type regeneration furnace (9), the external shell of which is connected in communication with the flue gas discharge end of the incineration system and is connected in parallel with the first waste heat boiler (7) through a pipeline, and when both are started, one of them is selected; the external heating type regeneration furnace (9) is used for recovering high-temperature flue gas produced by the incineration system, and high-temperature steam is introduced to blow off and regenerate the waste activated carbon particles placed in the inner furnace of the external heating type regeneration furnace (9); the activation furnace (8) collects high-temperature flue gas after cooling in the external shell of the external heating type regeneration furnace; The activation regeneration unit further comprises an internal heating type regeneration furnace (10), which is connected in communication with the flue gas discharge end of the incineration system and is connected in parallel with the first waste heat boiler (7), the activation furnace (8) and the external heating type regeneration furnace (9), respectively; the internal heating type regeneration furnace (10) is used for recovering high-temperature flue gas produced by the incineration system, and high-temperature steam is introduced to heat and regenerate the waste activated carbon particles placed in the internal heating type regeneration furnace (10).

2. The system for synergistically treating and comprehensively utilizing incineration flue gas and solid waste according to claim 1, characterized in that, The activation regeneration unit further comprises a tunnel kiln (19), which introduces high-temperature steam to regenerate activated carbon blocks. 3.The system for synergic treatment and comprehensive utilization of incineration flue gas and solid waste according to claim 2, characterized in that, The external heating type regeneration furnace (9), the internal heating type regeneration furnace (10) and the tunnel kiln (19) are all connected in communication with the screening and dust removal subunit, which is used for dust removal treatment of the regenerated activated carbon.

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