Fly ash and multi-source solid waste plasma melting collaborative resource treatment system

Abstract

The utility model discloses a fly ash and multi-source solid waste plasma melting collaborative resource treatment system which comprises a fly ash stock bin, a fly ash stock bin, a binder storage tank, a material intermediate bin, a glass stock bin, a stirrer, an extrusion forming granulator, a plasma furnace and a control center. Normal operation of the whole system is completed through accurate matching, quantitative matching of the binder and coordination and matching of valves of all devices. Resourceful treatment of various solid wastes such as fly ash, fly ash and waste glass bottles is realized, the fly ash and fly ash are mixed to form a low-melting-point mixture, low-temperature generation of a liquid phase is promoted, the melting temperature is reduced, the energy efficiency is improved, the treatment cost is saved, and meanwhile, a stable glass phase is formed; according to the plasma furnace, the raw materials are granulated after being mixed, and the process that powdery materials directly enter the furnace is replaced, so that the problem that slag is difficult to discharge in the plasma furnace is solved, and secondary dust raising is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of solid waste treatment technology, specifically relating to a system for the synergistic resource utilization of fly ash and multi-source solid waste through plasma melting. Background Technology

[0002] Hazardous waste refers to solid and liquid waste that has one or more hazardous characteristics (such as being corrosive, toxic, flammable, reactive, or infectious) or is likely to harm the environment or human health and therefore needs to be treated as hazardous materials. It mainly includes industrial hazardous waste and medical waste.

[0003] Fly ash primarily originates from the air pollutant purification equipment at the rear of waste incinerators. Due to its content of high-alkali metal chlorides, heavy metals, polychlorinated dioxins, and furans, it is classified as hazardous waste. Improper disposal of fly ash can cause serious harm to the environment and human health. Currently, plasma melting technology is internationally recognized as the "third generation" technology for the complete disposal of hazardous waste, achieving ultimate harmless treatment. It possesses unparalleled environmental advantages and enormous application prospects in the treatment of fly ash and other hazardous wastes. Plasma melting technology, through the high temperature, high hysteresis, and highly reactive environment provided by plasma, decomposes organic matter into clean, small-molecule inorganic substances, achieving dioxin cracking. After plasma melting, fly ash and hazardous waste bottom ash become glass slag, achieving harmless disposal. Resource utilization of glass slag is the main means of realizing the high value of waste incineration fly ash and hazardous waste bottom ash.

[0004] The existing fly ash plasma melting process often has the following problems: (1) The existing process generally involves directly conveying fly ash from the silo into the plasma furnace for processing. Due to the high CaO content of the fly ash, the melting temperature is high, which in turn leads to high energy consumption; (2) Since the powdered fly ash is directly conveyed into the plasma furnace, secondary dust will occur on site, and the plasma furnace will have difficulty in discharging slag after the powdered fly ash is processed by plasma melting; (3) The proportion of SiO2 in the glass slag obtained by plasma melting is not suitable, which affects the subsequent resource utilization of the glass slag; (4) Due to the excessively high temperature of the flue gas at the outlet of the plasma furnace, the subsequent flue gas treatment system is difficult to operate. Therefore, it is necessary to improve the existing fly ash treatment system and process, and propose the following new treatment scheme. Utility Model Content

[0005] To address the aforementioned issues, this invention provides a system for the synergistic resource recovery and treatment of fly ash and multi-source solid waste through plasma melting, thus resolving the technical problems present in existing fly ash plasma melting processes.

[0006] This invention proposes a treatment system for the co-processing and resource utilization of solid wastes such as fly ash, fly ash, and waste glass bottles through plasma melting. The system primarily employs plasma melting. Fly ash and fly ash are general solid waste and hazardous waste, respectively. Fly ash has a high CaO content, leading to a high melting temperature and consequently high energy consumption. Fly ash has an extremely high content of acidic oxides SiO2 and a large proportion of Al2O3. Therefore, the addition of fly ash can significantly alter the ratio of these three oxides, greatly influencing the reduction of the fly ash melting temperature and the formation of the crystalline phase in the molten glass.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] This utility model proposes a system for the synergistic resource utilization of fly ash and multi-source solid waste through plasma melting. The system includes a fly ash silo, a fly ash silo, a binder storage tank, a material intermediate silo, a glass silo, a mixer, an extrusion granulator, a plasma furnace, and a control center. The outlets of the fly ash silo, fly ash silo, and binder storage tank are respectively equipped with a rotary valve for the fly ash silo, a rotary valve for the fly ash silo, and a flow regulating valve, all connected to the material inlet of the mixer. The material outlet of the mixer is connected to the inlet of the extrusion granulator. The material outlet of the extrusion granulator, after passing through a first material conveyor belt and a bucket elevator, is connected to the inlet of the material intermediate silo. The outlet of the material intermediate silo is connected to a second material conveyor belt, and the outlet of the glass silo is connected to a third material conveyor belt. The outlets of the second and third material conveyor belts are both connected to a main feed screw, and the material outlet of the main feed screw is connected to the material inlet of the plasma furnace.

[0009] Furthermore, the binder storage tank is also equipped with a binder delivery pump. The fly ash silo rotary valve, the fly ash silo rotary valve, the binder delivery pump, the flow regulating valve, the second material conveyor belt, and the third material conveyor belt are all electrically connected to the control center to achieve precise feeding control.

[0010] Furthermore, the upper part of the fly ash silo and the fly ash silo are cylindrical, and the lower part is conical, with the discharge cone angle of the cone set at 35-60°; the fly ash silo vibrator and the fly ash silo vibrator are respectively installed on the cone of the fly ash silo and the fly ash silo to prevent material agglomeration and blockage by vibration.

[0011] Furthermore, the intermediate material silo is equipped with an intermediate material silo vibrator and a first electrically adjustable slide valve, and the glass silo is equipped with a glass silo vibrator and a second electrically adjustable slide valve to prevent blockage and control the amount of material falling.

[0012] Furthermore, a component detection device is connected to the main feed screw to detect the composition of the material inside the main feed screw. The component detection device is an XRF detector. Based on the total composition of the mixed raw materials (i.e., the requirements within the formula range), if the composition exceeds the formula range, the component detection device will adjust the feed rate of a single raw material or two raw materials automatically through feedback from the control center, thereby achieving automated control.

[0013] Furthermore, the plasma furnace is equipped with a plasma torch, a bottom-blowing nozzle, and a top-blowing nozzle. The bottom of the plasma furnace is provided with a slurry outlet channel, which is connected to a water quenching tank. The water quenching tank is equipped with a slag remover and a cooling water circulation system, including a slag-water heat exchanger and a slag-water circulation pump.

[0014] Furthermore, a quench tower is connected to the top outlet of the plasma furnace, and a quench spray gun is installed above the quench tower. The quench spray gun is connected to a process water tank and compressed air. The outlet of the quench tower is connected to a bag filter. A compressed air inlet is provided at the top of the bag filter and connected to an induced draft fan. A two-stage discharge valve is provided at the bottom of the bag filter.

[0015] The system for the synergistic resource recovery and disposal of fly ash and multi-source solid waste through plasma melting, as described above, includes the following process steps:

[0016] S1: Fly ash, fly ash and binder are mixed in a certain proportion by the control center.

[0017] S2: The material after mixing in step S1 enters the extrusion molding granulator for granulation. After granulation, it is transported to the intermediate material silo for temporary storage via the first material conveyor belt and bucket elevator.

[0018] S3: The waste glass bottles are crushed in advance and then transported to the glass silo; the material in the intermediate silo is discharged to the second material conveyor belt, and the glass silo is discharged to the third material conveyor belt; under the control of the control center, the ratio of the second material conveyor belt and the third material conveyor belt is controlled so that the two are mixed and transported in the main feed screw after being mixed.

[0019] S4: The material in the main feed screw is transported into the plasma furnace. Under the combined action of the plasma torch, auxiliary fuel, and air, and with the furnace temperature pre-set, the material is melted. Organic matter undergoes gasification and combustion reaction, while high-melting-point inorganic components gradually melt. After the molten slurry accumulates to a certain amount, it is led out of the plasma furnace bottom through the slurry outlet channel. The slag is removed by direct water quenching, resulting in a glassy solid slag. This slag then enters the water quenching tank and is transported off-site by a slag remover for resource utilization.

[0020] S5: Flue gas generated in the plasma furnace enters the quench tower through the top outlet. The quench spray gun injects cooling process water and compressed air into the flue gas to cool it down. After cooling, the flue gas is filtered by a bag filter and then discharged by an induced draft fan. After the bag filter bags are cleaned, compressed air is used to blow them away. The fallen fly ash is collected in the ash hopper and discharged through the discharge valve to be sent back to the fly ash silo for reprocessing.

[0021] Preferably, the feeding ratio in step S1 is as follows: fly ash is used at 5% to 15% of fly ash; waste glass bottles are used at 5% to 10% of fly ash; binder is used at 5% to 10% of the total raw materials; water is added at 15% to 20% of the total raw materials; and the alkalinity of the mixed raw materials is controlled at 1.1 to 1.6.

[0022] Preferably, the temperature at the bottom of the plasma furnace is controlled at 1400℃~1600℃; the temperature of the gas phase space of the plasma furnace is guaranteed to be 1200℃~1300℃, and the residence time is 2 seconds to 3 seconds.

[0023] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0024] (1) This utility model system can realize the resource-based treatment of various solid wastes such as fly ash, fly ash and waste glass bottles, and carry out pollution-free melting treatment to obtain glass phase that can be subsequently utilized;

[0025] (2) By mixing fly ash and fly ash, a low-melting-point mixture is formed, which promotes the low-temperature generation of the liquid phase, reduces the melting temperature, improves energy efficiency, saves processing costs, and forms a stable glass phase.

[0026] (3) By adding a glass silo, the waste glass bottles can be recycled, and the proportion of SiO2 in the slag can be further increased, which is more conducive to the subsequent recycling of glass residue.

[0027] (4) After the raw materials are mixed by the raw material mixer, they are put into the extrusion molding granulator for granulation, which replaces the previous process of directly putting powdered materials into the plasma furnace. This makes it possible for the plasma furnace to avoid the problem of difficult slag discharge, and improves the strength of the material, preventing secondary dust from occurring on site.

[0028] (5) A quench tower or other device is connected to the top outlet of the plasma furnace to cool the outlet flue gas, which facilitates the subsequent flue gas treatment process. Attached Figure Description

[0029] Figure 1 Schematic diagram of the system process for the synergistic resource utilization of fly ash and multi-source solid waste by plasma melting in this utility model - 1;

[0030] Figure 2 Schematic diagram of the system process for the synergistic resource utilization of fly ash and multi-source solid waste by plasma melting in this utility model - 2;

[0031] In the diagram: 11. Fly ash silo; 111. Fly ash silo vibrator; 112. Fly ash silo rotary valve; 12. Fly ash silo; 121. Fly ash silo vibrator; 122. Fly ash silo rotary valve; 13. Binder storage tank; 131. Binder conveying pump; 132. Flow regulating valve; 14. Material intermediate silo; 141. Material intermediate silo vibrator; 142. First electric regulating slide valve; 15. Glass silo; 151. Glass silo vibrator; 152. Second electric regulating slide valve; 2. Mixer; 3. Extrusion molding granulator; 31. First material conveyor belt. 32. Second material conveyor belt; 33. Third material conveyor belt; 34. Bucket elevator; 35. Main feed screw; 4. Plasma furnace; 41. Plasma torch; 411. Deionized water pump; 412. Deionized water heat exchanger; 42. Top-blowing spray gun; 43. Bottom-blowing spray gun; 44. Water quenching tank; 441. Slag remover; 442. Slag-water heat exchanger; 443. Slag-water circulating pump; 5. Quenching tower; 51. Quenching spray gun; 6. Bag filter; 61. Exhaust fan; 62. Discharge valve; 7. Process water tank; 71. Process water pump; 8. Oxygen enrichment system; 9. Component detection device. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] like Figure 1 As shown, a system for the synergistic resource utilization of fly ash and multi-source solid waste through plasma melting includes a fly ash silo 11, a fly ash silo 12, a binder storage tank 13, a material intermediate silo 14, a glass silo 15, a mixer 2, an extrusion molding granulator 3, a plasma furnace 4, and a control center 10. Through the synergistic treatment of fly ash and fly ash, precise proportioning, quantitative mixing of binder, and coordinated operation of various devices, instruments, valves, and structures, the entire system operates normally.

[0034] In existing common fly ash plasma melting processes, fly ash is directly fed into the plasma furnace 4 through the fly ash silo 11. The specific additions in this application are as follows: (a) A new rotary valve 112 is added to the fly ash silo to precisely control the fly ash feed flow rate under the control of the control center 10. A fly ash silo vibrator 111 is also installed to improve the metering accuracy of the rotary valve 112; (b) A new fly ash silo 12 is added to provide a fly ash feed channel, and a new rotary valve 122 is added to the fly ash silo to precisely control the fly ash feed flow rate under the control of the control center 10. A fly ash silo vibrator 111 is also installed to improve the metering accuracy of the rotary valve 112; (c) A vibrator 121 is installed in the fly ash silo to improve the metering accuracy of the star-shaped ash discharge valve 122 in the fly ash silo; (d) A binder storage tank 13 is added to provide a binder feeding channel, and a binder delivery pump 131 and a flow regulating valve 132 are added to accurately control the binder feeding flow under the control of the control center 10; (e) A mixer 2 is added to mix fly ash, fly ash and binder according to the formula ratio; (f) An extrusion molding granulator 3 is added to allow the raw materials to be granulated and then melted in the furnace, replacing the previous mode of directly feeding fly ash powder into the furnace.

[0035] Specifically, to facilitate material feeding, the upper part of the fly ash silo 11 and the fly ash silo 12 are cylindrical and the lower part is conical; and the fly ash silo 111 and the fly ash silo 12 are respectively equipped with fly ash silo vibrators 111 and 112 on the conical part, so as to prevent material from caking and blocking by vibration.

[0036] Specifically, the cone angle of the fly ash silo 11 and the fly ash silo 12 is set to 35°~60°. Too small or too large cone angles can easily cause blockage of the discharge port. Multiple vibrators 111 and 112 of fly ash silo can be set and symmetrically distributed around the circle at equal angles. In this application, two vibrators are set and symmetrically distributed.

[0037] Common fly ash plasma melting processes directly transport powdered fly ash into a high-temperature furnace. However, after plasma melting, the plasma furnace 4 experiences difficulties in slag removal. To address this issue, this invention employs a fly ash granulation method. This application uses an extrusion molding granulator 3 to granulate various raw materials. Preferably, the extrusion molding granulator 3 uses an extrusion molding method to improve strength and prevent secondary dust generation. The binder in this application is water glass (sodium silicate), primarily used for granulation.

[0038] After granulation, the material is conveyed to the intermediate material silo 14 via the first material conveyor belt 31 and the bucket elevator 34 for temporary storage. The intermediate material silo 14 is equipped with an intermediate material silo vibrator 141 and a first electric regulating slide valve 142 to prevent blockage and control the amount of material falling.

[0039] To further increase the SiO2 ratio and simultaneously process solid waste such as waste glass bottles, the waste glass bottles are crushed and transported to the glass silo 15. The glass silo 15 is equipped with a glass silo vibrator 151 and a second electric regulating slide valve 152 to prevent blockage and control the amount of material falling.

[0040] The bottom discharge points of the intermediate material bin 14 and the glass bin 15 are respectively equipped with a second material conveyor belt 32 and a third material conveyor belt 33, both of which have weighing functions and are controlled by the control center 10 to control the ratio of the two.

[0041] This application also includes a component detection device 9 connected to the main feed screw 35 for detecting the composition of the material within the main feed screw 35. The component detection device 9 is an XRF detector. Based on the total composition of the mixed raw materials (i.e., the requirements within the formula range), if the composition exceeds the formula range, the component detection device 9 will provide feedback and adjustment through the control center 10, thereby automatically adjusting the feed flow rate of a single raw material or two raw materials to achieve automated control.

[0042] The materials are mixed in a certain proportion by the material conveyor belt 32 and the third material conveyor belt 33 and then conveyed to the plasma furnace 4 by the main feed screw 35 for melting treatment.

[0043] refer to Figure 2 As shown, in plasma furnace 4, the mixed materials undergo gasification and combustion reactions of organic matter under the combined action of plasma torch 41, auxiliary fuel gas, and air, while the high-melting-point inorganic components gradually melt. Plasma torch 41 and bottom-blowing lance 43 create a high-temperature environment at the bottom of plasma furnace 4, with the temperature controlled between 1400℃ and 1600℃. A certain proportion of plasma vaporizing agent (air) creates a high-energy thermal environment through the plasma arc generated by plasma torch 41, where inorganic components are melted at the bottom of the furnace to form molten lava. After the molten lava accumulates to a certain amount, it is led out of the plasma furnace bottom through the molten lava outlet channel and slag is removed using a direct water quenching method, resulting in a glassy solid slag, which then enters the water quenching tank 44. The water quenching tank 44 is equipped with cooling water for cooling the glassy solid slag; the water quenching tank 44 is equipped with a slag remover 441 for removing the cooled glassy solid slag and transporting it off-site for resource utilization; in order to ensure normal operation, a cooling water circulation system is provided, which mainly includes a slag-water heat exchanger 442 and a slag-water circulation pump 443.

[0044] Specifically, the plasma torch 41 employs a water-cooling device, which uses a deionized water pump 411 and a deionized water heat exchanger 412 for continuous cooling.

[0045] Because the plasma furnace 4 generates combustible gases (VOCs), volatile salts, and some fly ash during operation, it has a significant impact on subsequent flue gas treatment. This includes damage to downstream equipment caused by partial combustion of combustible gases in the flue, and excessive VOC and fly ash emissions. To address these issues, a top-blown spray gun 42 is installed. Under the combustion-supporting effect of the top-blown spray gun 42, combustion continues and complete incineration is achieved.

[0046] Specifically, multiple plasma torches 41 are arranged around the plasma furnace 4; in this application, five are used.

[0047] Specifically, multiple top-blown spray guns 42 are arranged around the plasma furnace 4; in this application, five are used.

[0048] Specifically, multiple bottom-blowing nozzles 43 are arranged around the plasma furnace 4; in this application, four nozzles are used.

[0049] Preferably, to ensure that dioxins that may be generated in the flue gas produced by the thermal plasma reactor are completely decomposed at high temperature, the temperature of the gas phase space in plasma furnace 4 is maintained at 1200℃~1300℃, and the residence time is 2 seconds~3 seconds.

[0050] Preferably, the combustion-supporting fuel for the top-blowing nozzle 42 and the bottom-blowing nozzle 43 is natural gas. To ensure the combustion temperature, an oxygen enrichment system 8 is provided to supply high-concentration oxygen to the top-blowing nozzle 42 and the bottom-blowing nozzle 43.

[0051] Because the temperature of the flue gas at the outlet of plasma furnace 4 is too high, making it difficult for the subsequent flue gas treatment system to operate, this application provides a quench tower 5, and a quench spray gun 51 is provided above the quench tower 5. The quench spray gun 51 sprays cooling process water and compressed air into the flue gas to cool it down. The source of the cooling process water is the process water tank 7 and the process water pump 71.

[0052] Specifically, multiple quench spray guns 51 are evenly spaced at the top of the quench tower 5; in this application, three are used.

[0053] After being cooled, the flue gas is filtered by the bag filter 6 and then discharged by the induced draft fan 61. After the filter bags of the bag filter 6 are sucked up, compressed air is used to blow them. The fallen fly ash is collected in the ash hopper and discharged through the discharge valve 62 and sent back to the fly ash silo 11 for reprocessing.

[0054] Preferably, the discharge valve 62 is configured in two stages in series to prevent uncontrolled discharge of fly ash after compressed air is injected.

[0055] Preferably, the rapid cooling spray gun 51 rapidly cools the flue gas temperature from 1200~1300℃ to about 700~900℃. Excessively high temperatures are detrimental to the operation of equipment such as the bag filter 6, while excessively low temperatures can cause residual organic matter adsorbed on the fly ash surface to regenerate dioxins.

[0056] The specific formula requirements are as follows:

[0057] (1) Regarding alkalinity, the alkalinity after mixing several raw materials should be controlled at 1.1~1.6. The specific raw material formula is as follows: the amount of fly ash is 5%~15% of the fly ash, and the amount of waste glass bottles is 5%~10% of the fly ash.

[0058] (2) Regarding calorific value, the mixture of several raw materials should have a calorific value of 300~500kJ / kg, at which point the system's throughput can be increased by 70%. The specific raw material formula is as follows:

[0059] Formula 1: Add petroleum coke to the plasma furnace at a ratio of 5% to 10%, and the ratio of natural gas to fly ash is 100 to 150 mg / L. 3 / t;

[0060] Formula 2: Replace the natural gas with acetylene gas, which has a higher calorific value, at a ratio of 70-110 m³ / kg to fly ash. 3 / t.

[0061] During the granulation process, the ratio of binder to raw materials is 5% to 10%, and the ratio of water added to raw materials is 15% to 20%.

[0062] In summary, this utility model's technical solution can achieve the resource-based treatment of various solid wastes, including fly ash, fly ash, and waste glass bottles, through pollution-free melting treatment to obtain a glass phase that can be subsequently utilized. By mixing fly ash and fly ash, a low-melting-point mixture is formed, promoting the low-temperature generation of the liquid phase, reducing the melting temperature, improving energy efficiency, saving processing costs, and simultaneously forming a stable glass phase. The addition of a glass silo not only enables the resource-based treatment of waste glass bottles but also further increases the proportion of SiO2 in the slag, which is more conducive to the subsequent resource utilization of glass residue. After mixing the raw materials in a mixer, the mixture is fed into an extrusion molding granulator for granulation, replacing the previous process of directly feeding powdered materials into the plasma furnace. This eliminates the problem of difficult slag discharge from the plasma furnace, improves material strength, and prevents secondary dust generation. A quench tower and other devices are connected to the top outlet of the plasma furnace to cool the outlet flue gas, facilitating subsequent flue gas treatment processes.

[0063] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A system for the synergistic resource recovery and treatment of fly ash and multi-source solid waste through plasma melting, characterized in that, The system includes a fly ash silo (11), a fly ash silo (12), a binder storage tank (13), a material intermediate silo (14), a glass silo (15), a mixer (2), an extrusion molding granulator (3), a plasma furnace (4), and a control center (10). The outlets of the fly ash silo (11), the fly ash silo (12), and the binder storage tank (13) are respectively equipped with a fly ash silo rotary valve (112), a fly ash silo rotary valve (122), and a flow regulating valve (132), all of which are connected to the material inlet of the mixer (2). The material outlet of the mixer (2) is connected to the extrusion molding granulator. The inlet of the extrusion granulator (3) is connected to the material outlet of the extrusion granulator (3) and then connected to the inlet of the intermediate material silo (14) via the first material conveyor belt (31) and the bucket elevator (34); the outlet of the intermediate material silo (14) is connected to the second material conveyor belt (32), the outlet of the glass silo (15) is connected to the third material conveyor belt (33), the outlets of the second material conveyor belt (32) and the third material conveyor belt (33) are both connected to the main feed screw (35), and the material outlet of the main feed screw (35) is connected to the material inlet of the plasma furnace (4).

2. The system for synergistic resource utilization of fly ash and multi-source solid waste through plasma melting according to claim 1, characterized in that, The binder storage tank (13) is also equipped with a binder delivery pump (131). The fly ash silo star valve (112), the fly ash silo star valve (122), the binder delivery pump (131), the flow regulating valve (132), the second material conveying belt (32) and the third material conveying belt (33) are all electrically connected to the control center (10) to achieve precise feeding control.

3. The system for synergistic resource utilization of fly ash and multi-source solid waste through plasma melting according to claim 2, characterized in that, The upper part of the fly ash silo (11) and the fly ash silo (12) are cylindrical and the lower part is conical. The cone angle of the cone is set to 35-60°. A fly ash silo vibrator (111) and a fly ash silo vibrator (121) are respectively provided on the cone of the fly ash silo (11) and the fly ash silo (12) to prevent material from caking and blocking by vibration.

4. The system for synergistic resource utilization of fly ash and multi-source solid waste through plasma melting according to claim 3, characterized in that, The intermediate material bin (14) is equipped with an intermediate material bin vibrator (141) and a first electric regulating slide valve (142), and the glass bin (15) is equipped with a glass bin vibrator (151) and a second electric regulating slide valve (152) to prevent blockage and control the amount of material falling.

5. The system for synergistic resource utilization of fly ash and multi-source solid waste through plasma melting according to claim 4, characterized in that, A component detection device (9) is also connected to the main feed screw (35) to detect the component of the material in the main feed screw (35) and then adjust the feed flow rate of each raw material through feedback from the control center (10).

6. The system for synergistic resource utilization of fly ash and multi-source solid waste through plasma melting according to claim 4, characterized in that, The plasma furnace (4) is equipped with a plasma torch (41), a bottom-blowing spray gun (43) and a top-blowing spray gun (42). The bottom of the plasma furnace (4) is provided with a slurry outlet channel, which is connected to a water quenching tank (44). The water quenching tank (44) is equipped with a slag remover (441) and a cooling water circulation system, including a slag-water heat exchanger (442) and a slag-water circulation pump (443).

7. The system for synergistic resource utilization of fly ash and multi-source solid waste through plasma melting according to claim 6, characterized in that, The top outlet of the plasma furnace (4) is connected to a quench tower (5), and a quench spray gun (51) is provided above the quench tower (5). The quench spray gun (51) is connected to a process water tank (7) and compressed air. The outlet of the quench tower (5) is connected to a bag filter (6). The upper part of the bag filter (6) is provided with a compressed air inlet and connected to an induced draft fan (61). The bottom of the bag filter (6) is provided with a two-stage series discharge valve (62).

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