Fly ash granulation and post-firing equipment adopting continuous conveying

Abstract

The invention relates to the technical field of solid waste treatment, in particular to fly ash granulation post-firing equipment adopting continuous conveying, which comprises an incineration device, continuous conveying devices are fixedly and hermetically mounted at the top and the bottom of the incineration device, and a feeding device is fixedly and hermetically mounted at the top of the continuous conveying device at the top of the incineration device. An exhaust device is fixedly and hermetically mounted at the top of the feeding device, a discharging device is fixedly and hermetically mounted at the bottom of the continuous conveying device at the bottom of the incineration device, and an air supply device is mounted at the bottom of the discharging device. Through integration of continuous transfer, layered firing and an airflow circulation system, continuous treatment after fly ash granulation is realized, and the overall efficiency is improved; multiple functions of waste heat recovery, oxygen supply, preheating, cooling and the like are achieved through airflow reverse circulation, and the overall energy consumption is reduced; meanwhile, pollution reduction is facilitated through connection of sealing design and waste gas treatment, stable firing quality can be guaranteed by adopting multi-device collaborative design, and the device is suitable for large-scale fly ash harmless treatment.

Description

Technical Field

[0001] This invention relates to the field of solid waste treatment technology, and specifically to a fly ash granulation and calcination equipment using continuous conveying. Background Technology

[0002] In the field of industrial solid waste treatment, fly ash, as a hazardous waste generated during waste incineration and coal-fired power generation, contains toxic and harmful substances such as heavy metals and dioxins. If not properly treated, it will cause serious pollution to soil, water and air. Therefore, it is necessary to remove organic matter (such as dioxins) from fly ash through incineration to achieve harmless and reduced treatment.

[0003] Currently, fly ash is often calcined in intermittent kilns or single-stage continuous kilns after granulation. Intermittent kilns require frequent start-ups and shutdowns, resulting in low calcination efficiency and limited processing capacity. Furthermore, large temperature fluctuations lead to unstable calcination quality, making it difficult to meet the demands of large-scale processing. While single-stage continuous kilns can achieve continuous material transport, they lack effective airflow circulation design. The high-temperature waste heat generated during calcination cannot be recovered, resulting in energy waste. Direct discharge of high-temperature materials can damage equipment components, and uneven oxygen supply for the combustion reaction can lead to incomplete calcination in certain areas. In addition, insufficient equipment sealing can cause fly ash particle leakage or direct emission of pollutant-containing exhaust gases, posing a risk of secondary pollution.

[0004] Therefore, how to achieve continuous, efficient, low-energy and environmentally friendly calcination treatment after fly ash granulation, while ensuring equipment operation stability and calcination quality, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In order to solve the problems of low calcination efficiency, high energy consumption, poor environmental performance and easy equipment damage after fly ash granulation, and to achieve continuous, efficient, low-consumption and environmentally friendly harmless treatment of fly ash, and to ensure calcination quality and stable equipment operation, this application provides a fly ash granulation calcination equipment with continuous conveying.

[0006] The technical solution provided in this application for a fly ash granulation and calcination device using continuous conveying is as follows: A fly ash granulation and calcination device employing continuous conveying includes an incineration unit. A continuous conveying device is fixedly and sealed at both the top and bottom of the incineration unit. A feeding device is fixedly and sealed at the top of the continuous conveying device at the top of the incineration unit, and an exhaust device is fixedly and sealed at the top of the feeding device. A discharge device is fixedly and sealed at the bottom of the continuous conveying device at the bottom of the incineration unit, and an air supply device is installed at the bottom of the discharge device. The incineration unit includes an incinerator body. Inside the incinerator body, near one end, a material discharge channel is fixedly installed corresponding to two of the continuous conveying devices. Outside the material discharge channel, inside the incinerator body, corresponding to the continuous conveying device at the top of the incineration unit, several equidistantly distributed incinerators are installed.

[0007] By adopting the above technical solutions, an overall structure was constructed with the incineration device as the core, the upper and lower continuous conveying devices connected, and the feeding, discharging and gas circuit systems coordinated. This achieved the synergy of continuous conveying and burning of fly ash particles, the material discharge channel ensured the directional flow of materials, the equidistant incinerator ensured uniform heating, and the sealed design reduced heat and material leakage.

[0008] Furthermore, the incinerator includes an incineration cylinder, a gas injection pipe fixedly installed at the center of the incineration cylinder, a gas nozzle fixedly installed at the top of the gas injection pipe, a gas supply branch pipe sealed to the bottom of the gas injection pipe, an electric regulating valve installed on the gas supply branch pipe, and multiple gas supply branch pipes connected to the same gas supply main pipe, which is connected to an external gas source; an ignition hood fixedly installed at the top of the incineration cylinder, an ignition electrode fixedly installed on the ignition hood corresponding to the gas nozzle, and an air guide hood fixedly installed at the bottom of the incineration cylinder.

[0009] By adopting the above technical solution, the gas supply system uses an electric regulating valve to precisely control the flow rate, the ignition hood and ignition electrode ensure stable ignition, and the air guide hood guides the airflow to fully mix with the gas, thereby improving the combustion efficiency and forming a stable high-temperature heat source to meet the temperature requirements for fly ash combustion. At the same time, it is convenient to control each incinerator individually and adapt to different combustion conditions.

[0010] Furthermore, the continuous conveying device includes a transfer box, inside which several layers of equidistantly distributed transfer mesh plates are fixedly installed along its height direction. A transfer discharge chute is formed near one end of each transfer mesh plate. Inside the transfer box, above the transfer mesh plates and near both ends of the transfer mesh plates, transfer shafts are rotatably connected. Transfer rollers are fixedly connected to the transfer shafts. Metal chains are fitted onto the outer sides of the two transfer rollers, and the metal chains are drive-connected to the transfer rollers. Several equidistantly distributed scrapers are hinged to the metal chains, with the ends of the scrapers away from the metal chains contacting the surface of the transfer mesh plates. A transfer drive assembly, drive-connected to the transfer shafts, is fixedly installed on the outer side of the transfer box.

[0011] By adopting the above technical solution, the material is transferred layer by layer by using a multi-layer transfer mesh plate and scraper, which can extend the firing time; the metal chain belt drive ensures continuous and stable conveying, and the scraper adheres to the mesh plate to avoid material retention; the mesh design allows airflow to pass through, so as to achieve full heat exchange and reaction between the material and the airflow, thereby improving the processing effect.

[0012] Furthermore, the transfer drive assembly includes a transfer motor mounting box, which is fixedly installed on the outside of the transfer box. A transfer drive motor is fixedly installed on the transfer motor mounting box. A transfer drive gear is fixedly installed at one end of the output shaft of the transfer drive motor that passes through the interior of the transfer motor mounting box. A transfer driven gear is fixedly installed at the outer end of the transfer shaft that passes through the transfer box. The transfer drive gear and the transfer driven gear are connected by gear meshing transmission.

[0013] By adopting the above technical solutions, the gear meshing transmission can ensure precise and stable power transmission, make the scraper conveying speed uniform, and ensure smooth material conveying; the motor mounting box provides protection to avoid the external environment from affecting the transmission components, and together with the sealing structure of the transfer box, it ensures the continuous and reliable operation of the equipment.

[0014] Furthermore, the feeding device includes a top feeding box, which is fixedly installed on the top of the continuous conveying device located above the incineration device. An inclined feeding plate is fixedly installed inside the top feeding box, and the feeding plate has a uniformly distributed second mesh. A feeding chute is provided at the lower end of the inclined feeding plate. A feeding port is provided on the side wall of the top feeding box corresponding to the upper end of the inclined feeding plate. A vertical conveying assembly is fixedly installed on the outside of the top feeding box corresponding to the feeding port. A bottom feeding box is connected to the bottom of the vertical conveying assembly. A feeding conveyor belt connected to an external granulation device is installed on the bottom feeding box.

[0015] By adopting the above technical solution, the inclined feed plate and the chute realize the precise docking of materials and the continuous conveying device. The second mesh allows airflow to pass through to preheat the materials. The vertical conveying component realizes the vertical lifting of materials. The feed conveyor belt connects to the external granulation device to form a continuous feeding link, thereby improving the overall processing efficiency.

[0016] Furthermore, the vertical conveying assembly includes a feeding conveying pipe, which is fixedly installed on the inner bottom surface of the bottom feeding box. A vertical conveying auger is rotatably connected inside the feeding conveying pipe. A feeding inlet is provided on the side wall of the feeding conveying pipe near its lower end, and a feeding outlet is provided at the top end of the feeding conveying pipe. A connecting seat is fixedly installed on the feeding conveying pipe corresponding to the feeding outlet. The connecting seat is fixedly installed on the top feeding box at the position corresponding to the feeding inlet. A conveying cavity is provided inside the connecting seat, connecting the feeding outlet and the feeding inlet. A conveying drive assembly is driven through the connecting seat at the top of the vertical conveying auger.

[0017] By adopting the above technical solutions, the vertical conveying auger realizes the vertical conveying of materials and solves the problem of material lifting; the feed inlet and inclined surface design ensure smooth material entry, the conveying chamber and connecting seat achieve sealed connection to avoid material leakage, and the drive component ensures continuous and stable feeding and connects the loading and unloading links.

[0018] Furthermore, the conveying drive assembly includes a conveying motor mounting box, which is fixedly installed on the top of the connecting seat. A conveying drive motor is fixedly installed on the conveying motor mounting box, and a conveying drive gear is fixedly installed at one end of the output shaft of the conveying drive motor. A conveying driven gear is fixedly installed through the top end of the connecting seat of the vertical conveying auger. The conveying drive gear and the conveying driven gear are connected by gear meshing transmission.

[0019] By adopting the above technical solutions, gear meshing transmission provides stable power to the vertical auger, ensuring uniform material conveying; the motor mounting box protects the transmission components, improving the durability of the equipment, and achieving efficient and leak-free conveying from the bottom feed box to the top feed box, ensuring continuous feeding.

[0020] Furthermore, the exhaust device includes an exhaust fan mounting box, which is fixedly and sealed on the top of the feeding device. The exhaust fan mounting box has an exhaust fan mounting hole, and an exhaust fan is installed inside the exhaust fan mounting hole. An exhaust hood is fixedly fitted on the outside of the exhaust fan mounting box, and an exhaust pipe is fixedly connected to the exhaust hood. The exhaust pipe is connected to an external waste gas treatment system.

[0021] By adopting the above technical solution, the exhaust fan generates negative pressure to drive airflow circulation, and the exhaust hood and exhaust pipe direct the waste gas into the treatment system to avoid pollution; the sealed fan box prevents air leakage, ensures airflow circulation efficiency, and takes into account both environmental protection emissions and stable internal air pressure of the equipment.

[0022] Furthermore, the discharge device includes a discharge box, which is fixedly installed at the bottom of the continuous conveying device located below the incineration device. An inclined discharge plate is fixedly installed inside the discharge box, and the discharge plate has a uniformly distributed third mesh. A discharge port is provided on the side wall of the discharge box corresponding to the lower end of the inclined discharge plate. A discharge conveyor belt connected to an external collection device is fixedly installed on the outside of the discharge box corresponding to the discharge port.

[0023] By adopting the above technical solution, the inclined discharge plate guides the material flow to the discharge port, and the third mesh allows airflow to pass through to cool the material and recover waste heat; the discharge conveyor belt is connected to an external collection device to realize the continuous discharge of the material after firing, and avoid the accumulation of high-temperature material that could damage the equipment.

[0024] Furthermore, the air supply device includes a base, on which an air inlet is provided. An air inlet mesh plate is fixedly installed inside the air inlet. The air inlet mesh plate has evenly distributed fourth mesh holes. An air intake fan mounting box is fixedly installed inside the air inlet on the upper surface of the air inlet mesh plate. An air intake fan mounting hole is provided on the air intake fan mounting box, and an air intake fan is installed inside the air intake fan mounting hole.

[0025] By adopting the above technical solutions, the air inlet mesh plate filters the air to reduce the entry of impurities, and the air inlet fan provides a stable airflow source; the fan mounting box ensures air delivery efficiency, and the base and discharge box work together to form an airflow inlet, providing a clean and continuous air source for the internal airflow circulation of the equipment, supporting the heat exchange and reaction requirements.

[0026] Beneficial effects achieved: This application achieves continuous processing of fly ash after granulation by integrating continuous conveying, layered firing, and airflow circulation systems, thereby improving overall efficiency. The reverse airflow circulation realizes multiple functions such as waste heat recovery, oxygen supply, preheating, and cooling, reducing overall energy consumption. At the same time, the sealed design and connection with waste gas treatment help reduce pollution, while the multi-device collaborative design helps ensure stable firing quality and is suitable for large-scale harmless treatment of fly ash. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application.

[0028] Figure 2 This is a structural exploded view of one embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the internal structure of one embodiment of this application.

[0030] Figure 4 This is an exploded view of the incinerator structure in one embodiment of this application.

[0031] Figure 5 This is an exploded view of the continuous conveying device in one embodiment of this application.

[0032] Figure 6 This is a partial exploded view of the feeding device in one embodiment of this application.

[0033] Figure 7 This is an exploded view of the exhaust device in one embodiment of this application.

[0034] Figure 8 This is a partial exploded view of the feeding device in one embodiment of this application.

[0035] Figure 9 This is an exploded view of the structure of the discharge device in one embodiment of this application.

[0036] Figure 10 This is an exploded view of the air supply device in one embodiment of this application.

[0037] Explanation of reference numerals in the attached drawings: 100, Incineration device; 101, Incinerator body; 102, Material feeding channel; 103, Incinerator mounting bracket; 104, Incinerator; 1041, Incineration cylinder; 1042, Mounting hole; 1043, Gas injection pipe; 1044, Gas nozzle; 1045, Gas supply branch pipe; 1046, Electric regulating valve; 1047, Gas supply main pipe; 1048, Ignition hood; 1049, Ignition electrode; 1050, Air guide hood; 200, Continuous conveying device; 201, Transfer. 202. Conveying screen; 203. First mesh; 204. Conveying chute; 205. Conveying shaft; 206. Conveying roller; 207. Metal chain; 208. Scraper; 209. Conveying drive assembly; 2091. Conveying motor mounting box; 2092. Conveying drive motor; 2093. Conveying drive gear; 2094. Conveying driven gear; 300. Feeding device; 301. Top feeding box; 302. Feeding plate; 303. Second mesh; 304. Feeding chute; 305. 306. Feed inlet; 306. Vertical conveyor assembly; 3061. Feed conveyor pipe; 3062. Vertical conveyor auger; 3063. Feed input port; 3064. Feed output port; 3065. Connecting seat; 3066. Conveying chamber; 307. Bottom feed box; 308. Feed conveyor belt; 309. Conveying drive assembly; 3091. Conveying motor mounting box; 3092. Conveying drive motor; 3093. Conveying drive gear; 3094. Conveying driven gear; 400. Exhaust device; 401. Exhaust fan mounting box; 402, Exhaust fan mounting hole; 403, Exhaust fan; 404, Exhaust hood; 405, Exhaust pipe; 500, Discharge device; 501, Discharge box; 502, Discharge plate; 503, Third mesh; 504, Discharge port; 505, Discharge conveyor belt; 600, Air supply device; 601, Base; 602, Air inlet; 603, Air inlet mesh plate; 604, Fourth mesh; 605, Intake fan mounting box; 606, Intake fan mounting hole; 607, Intake fan. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0039] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] This application discloses a fly ash granulation and calcination equipment using continuous conveying.

[0042] Please refer to the above as well. Figures 1 to 10 In one embodiment of this application, a fly ash granulation and subsequent calcination device employing continuous conveying includes an incineration device 100. A continuous conveying device 200 is fixedly and sealed at both the top and bottom of the incineration device 100. A feeding device 300 is fixedly and sealed at the top of the continuous conveying device 200 at the top of the incineration device 100, and an exhaust device 400 is fixedly and sealed at the top of the feeding device 300. A discharge device 500 is fixedly and sealed at the bottom of the continuous conveying device 200 at the bottom of the incineration device 100, and an air supply device 600 is installed at the bottom of the discharge device 500. An airflow is formed between the exhaust device 400 and the air supply device 600, sequentially penetrating the discharge device 500, the continuous conveying device 200 at the bottom of the incineration device 100, the incineration device 100, the continuous conveying device 200 at the top of the incineration device 100, and the feeding device 300.

[0043] During operation, fly ash particles first enter the equipment through the feeding device 300, and then enter the continuous conveying device 200 located at the top of the incineration device 100 for continuous conveying. During the continuous conveying process, the incineration device 100 starts to burn the fly ash particles in the continuous conveying device 200. The burned material falls into the continuous conveying device 200 at the bottom of the incineration device 100, and is then conveyed to the discharge device 500 below for discharge.

[0044] Meanwhile, the air supply device 600 supplies air from the bottom of the discharge device 500. The airflow passes through the discharge device 500, the continuous conveying device 200 at the bottom of the incineration device 100, the incineration device 100, the continuous conveying device 200 at the top of the incineration device 100, and the feeding device 300 in sequence. Finally, it is collected and processed by the exhaust device 400, forming a counter-current heat utilization system.

[0045] When the airflow passes through the discharge device 500 and the continuous conveying device 200 at the bottom of the incineration device 100, the airflow will carry away most of the residual heat of the material after combustion, and at the same time reduce the temperature of the material in the discharge device 500 and the bottom continuous conveying device 200, so as to avoid the high temperature material being directly discharged and damaging the equipment, thus playing a cooling role.

[0046] When the gas flow passes through the incineration device 100, the oxygen contained in the gas flow will provide sufficient oxidant for the combustion reaction of fly ash particles, ensuring the stable and continuous combustion reaction, ensuring the combustion effect of fly ash particles, and playing the role of oxygen supply.

[0047] When the airflow passes through the continuous conveying device 200 at the top of the incineration device 100, the airflow will form a directional flow trend. On the one hand, it guides the flame generated by the incineration device 100 to diffuse into the continuous conveying device 200, ensuring that the flame evenly covers the fly ash particles in the device. On the other hand, the airflow can transfer the heat of the flame to the surface and interior of the fly ash particles more efficiently, while carrying away a small amount of light impurities generated by the initial reaction of the particles, providing favorable conditions for the fly ash particles to complete a stable and sufficient combustion reaction during continuous conveying.

[0048] When the airflow passes through the feeding device 300, the residual heat from the combustion device 100 carried by the airflow will preheat the fly ash particles to be burned in the top continuous conveying device 200 and the newly entered fly ash particles in the feeding device 300, thus playing a preheating role and reducing the energy consumption of the subsequent burning reaction.

[0049] Please refer to the above as well. Figures 1 to 10 In one specific embodiment of this application, the incineration device 100 includes an incinerator body 101. Inside the incinerator body 101, near one end, a material discharge channel 102 is fixedly installed corresponding to two continuous conveying devices 200. Outside the material discharge channel 102, inside the incinerator body 101, corresponding to the continuous conveying device 200 at the top of the incineration device 100, a plurality of equally spaced incinerator mounting frames 103 are fixedly installed on each incinerator mounting frame 103.

[0050] During operation, while the continuous conveying device 200 at the top of the incineration unit 100 is transferring the fly ash particles to be processed, the incinerator 104 on the incinerator mounting frame 103 is activated, forming a high-temperature incineration zone outside the material discharge channel 102 to heat and burn the fly ash particles in the continuous conveying device 200. The burned material passes through the material discharge channel 102, through the incinerator body 101, and enters the continuous conveying device 200 at the bottom of the incineration unit 100, completing the continuous burning operation.

[0051] Please refer to the above as well. Figures 1 to 10In one specific embodiment of this application, the incinerator 104 includes an incinerator cylinder 1041. The incinerator cylinder 1041 has mounting holes 1042 corresponding to the incinerator mounting bracket 103. A gas nozzle 1043 is fixedly mounted at the center of the incinerator cylinder 1041. A gas nozzle 1044 is fixedly mounted at the top of the gas nozzle 1043. A gas supply branch pipe 1045 is sealed to the bottom of the gas nozzle 1043 through the side wall of the incinerator cylinder 1041. An electric regulating valve 1046 is installed on the gas supply branch pipe 1045. Multiple gas supply branch pipes 1045 are connected to the same gas supply main pipe 1047, which is connected to an external gas source. An ignition shroud 1048 is fixedly mounted at the top of the incinerator cylinder 1041. An ignition electrode 1049 is fixedly mounted on the ignition shroud 1048 corresponding to the gas nozzle 1044. An air guide shroud 1050 is fixedly mounted at the bottom of the incinerator cylinder 1041.

[0052] During operation, an external gas source delivers gas to each gas supply branch pipe 1045 via the gas supply main pipe 1047. After being regulated by the electric regulating valve 1046, the gas is delivered to the gas nozzle 1044 through the gas nozzle 1043 and ejected. Simultaneously, the airflow enters the combustion chamber 1041 through the air guide shroud 1050, and the ignition electrode 1049 ignites the gas-air mixture inside the ignition shroud 1048, forming a stable flame. The combustion chamber 1041 is fixed to the incinerator mounting bracket 103 through the mounting holes 1042, continuously providing a high-temperature heat source to the incinerator body 101.

[0053] Please refer to the above as well. Figures 1 to 10 In one specific embodiment of this application, the continuous conveying device 200 includes a transfer box 201. The transfer box 201 is fixedly and sealed at the top and bottom of the incinerator body 101 in the incineration device 100. Several layers of equidistantly distributed transfer mesh plates 202 are fixedly installed inside the transfer box 201 along its height direction. Several uniformly distributed first mesh holes 203 are opened on the transfer mesh plates 202, and a transfer discharge chute 204 is opened near one end of the transfer mesh plate 202. Inside the transfer box 201, above the transfer screen 202, near both ends of the transfer screen 202, a transfer shaft 205 is rotatably connected. Transfer rollers 206 are fixedly connected to the transfer shafts 205. Metal chains 207 are fitted onto the outer sides of the two transfer rollers 206, and are drive-connected to the transfer rollers 206. Several equally spaced scrapers 208 are hinged to the metal chains 207. The end of each scraper 208 away from the metal chains 207 is in contact with the surface of the transfer screen 202. Both ends of the transfer screen 202 are arc-shaped, corresponding to the shape of the metal chains 207. A transfer drive assembly 209, drive-connected to the transfer shafts 205, is fixedly installed on the outer side of the transfer box 201.

[0054] During operation, the transfer drive assembly 209 drives the transfer shaft 205 to rotate, which in turn drives the transfer roller 206 and the outer metal chain belt 207 to operate, causing the scraper 208 on the metal chain belt 207 to slide along the surface of the transfer mesh plate 202. Fly ash particles fall onto the transfer mesh plate 202, are pushed along the transfer mesh plate 202 by the scraper 208, and after being guided by the end arc section, fall from the transfer drop chute 204 to the lower transfer mesh plate 202, and are transferred layer by layer. Airflow can pass through the first mesh 203 within the transfer box 201, realizing the coordinated operation of material transfer and airflow exchange.

[0055] Please refer to the above as well. Figures 1 to 10 In one specific embodiment of this application, the metal chain belt 207 is made of metal sheets made of high-temperature resistant alloy material, which are sequentially and hinged together to form a closed-loop conveyor belt structure, with a certain gap between the metal sheets. This arrangement allows it to adapt to the arc-shaped turning of the transfer roller 206, while meeting the high-temperature environment requirements within the continuous conveying device 200.

[0056] The metal sheet has a smooth and high-strength surface. When hinged with the scraper 208, it can stably push fly ash particles and prevent material stagnation. Its gap design allows airflow to pass through the first mesh 203 and then penetrate the chain belt, achieving full contact between the material and the airflow and improving heat exchange efficiency. At the same time, the airflow can reduce dust adhesion and blockage when passing through the gap. Combined with the scraping action of the scraper 208, it can self-clean, reduce maintenance frequency, and ensure continuous and stable operation of the equipment.

[0057] In a specific embodiment of this application, the metal sheet of the metal chain belt 207 can be made of 310S stainless steel, Inconel 600 alloy, Hastelloy C-276, etc. These materials have high temperature resistance, high strength and corrosion resistance, which can ensure that the metal chain belt 207 maintains structural stability during long-term operation, and the smooth surface characteristics can reduce material adhesion, and the gap design can achieve efficient airflow exchange.

[0058] Please refer to the above as well. Figures 1 to 10 In one specific embodiment of this application, the transfer drive assembly 209 includes a transfer motor mounting box 2091, which is fixedly installed on the outside of the transfer box 201. A transfer drive motor 2092 is fixedly installed on the transfer motor mounting box 2091. A transfer drive gear 2093 is fixedly installed at one end of the output shaft of the transfer drive motor 2092 that extends into the interior of the transfer motor mounting box 2091. A transfer driven gear 2094 is fixedly installed at the outer end of the transfer shaft 205 that extends through the transfer box 201. The transfer drive gear 2093 and the transfer driven gear 2094 are connected by gear meshing transmission.

[0059] During operation, the transfer motor mounting box 2091, fixed to the outside of the transfer box 201, provides protection and support for the internal components. After the externally mounted transfer drive motor 2092 starts, its output shaft drives the transfer drive gear 2093, which runs through the transfer motor mounting box 2091, to rotate. Since the transfer drive gear 2093 and the transfer driven gear 2094 at the outer end of the transfer shaft 205 form a transmission connection through gear meshing, the rotational force of the transfer drive gear 2093 is transmitted to the transfer driven gear 2094, thereby driving the transfer shaft 205 to rotate synchronously. As the transfer shaft 205 rotates, the transfer roller 206 inside the transfer box 201 operates accordingly, driving the metal chain belt 207 and scraper 208 to move along the surface of the transfer mesh plate 202, achieving continuous pushing of fly ash particles. This gear meshing transmission method ensures the stability and accuracy of power transmission, keeps the conveying speed of scraper 208 uniform, and ensures that fly ash particles are smoothly conveyed and fall layer by layer on the conveying mesh plate 202. At the same time, in conjunction with the sealing structure of the conveying box 201, it prevents material leakage or airflow turbulence, and provides reliable power support for the continuous operation of the equipment.

[0060] Please refer to the above as well. Figures 1 to 10 In one specific embodiment of this application, the feeding device 300 includes a top feeding box 301, which is fixedly installed on the top of the transfer box 201 in the continuous conveying device 200 located above the incineration device 100. An inclined feeding plate 302 is fixedly installed inside the top feeding box 301. The feeding plate 302 has evenly distributed second mesh holes 303. A feeding chute 304 corresponding to the transfer chute 204 is opened at the lower end of the inclined feeding plate 302. A feeding port 305 is opened on the side wall of the top feeding box 301 corresponding to the upper end of the inclined feeding plate 302. A vertical conveying assembly 306 is fixedly installed on the outer side of the top feeding box 301 corresponding to the feeding port 305. A bottom feeding box 307 is connected to the bottom of the vertical conveying assembly 306. A feeding conveyor belt 308 connected to an external granulation device is installed on the bottom feeding box 307.

[0061] During operation, fly ash granules are first conveyed from the external pelletizing device to the bottom feed box 307 via the feed conveyor belt 308, and then conveyed upwards by the vertical conveying assembly 306, entering the top feed box 301 through the feed inlet 305 on its side wall. The granules then fall onto the inclined feed plate 302 and slide down the inclined surface. During this process, airflow can pass through the second mesh 303 on the feed plate 302 to preheat the granules. Finally, the granules fall from the feed drop chute 304 at the lower end of the feed plate 302, precisely landing in the transfer drop chute 204 within the transfer box 201 of the upper continuous conveying device 200, and then enter the transfer mesh plate 202 for conveying. The entire process, guided by the inclined feed plate 302, facilitates airflow interaction through the second mesh 303, and ensures precise docking of the drop chute, achieves a stable transition of fly ash granules from the external pelletizing device to the continuous conveying device 200, providing continuous feeding assurance for subsequent calcination processing.

[0062] Please refer to the above as well. Figures 1 to 10 In one specific embodiment of this application, the vertical conveying assembly 306 includes a feed conveying pipe 3061, which is fixedly installed on the inner bottom surface of the bottom feed box 307. A vertical conveying auger 3062 is rotatably connected inside the feed conveying pipe 3061. A feed inlet 3063 is provided on the side wall of the feed conveying pipe 3061 near its lower end. The inner bottom surface of the bottom feed box 307 is configured as a first inclined surface corresponding to the feed inlet 3063. A feed outlet 3064 is provided at the top end of the feed conveying pipe 3061. A connecting seat 3065 is fixedly installed on the feed conveying pipe 3061 corresponding to the feed output port 3064. The connecting seat 3065 is fixedly installed on the top feed box 301 at the position corresponding to the feed port 305. The connecting seat 3065 has a conveying cavity 3066 inside that connects the feed output port 3064 and the feed port 305. The inner bottom surface of the conveying cavity 3066 is set as a second inclined surface that slopes from the feed output port 3064 to the feed port 305. The top of the vertical conveying auger 3062 passes through the connecting seat 3065 and is connected to the conveying drive assembly 309.

[0063] During operation, the bottom feed box 307 receives fly ash particles from the feed conveyor belt 308. The particles slide along the first inclined surface of the bottom inner surface of the bottom feed box 307 and enter the feed inlet 3063 at the lower end of the feed conveying pipe 3061. The conveying drive assembly 309 drives the vertical conveying auger 3062 to rotate inside the feed conveying pipe 3061, conveying the particles upward to the top feed outlet 3064. After entering the conveying chamber 3066 of the connecting seat 3065, the particles slide along the second inclined surface of the inner bottom surface towards the feed inlet 305, and finally enter the top feed box 301. Throughout the process, the vertical conveying auger 3062 achieves vertical lifting of the particles, the first and second inclined surfaces ensure smooth particle flow, and the connecting seat 3065 completes the sealed connection between the feed conveying pipe 3061 and the top feed box 301 through the conveying chamber 3066, ensuring that fly ash particles are efficiently and leak-free transported from the bottom feed box 307 to the top feed box 301, providing continuous feeding support for subsequent processing.

[0064] Please refer to the above as well. Figures 1 to 10 In one specific embodiment of this application, the conveying drive assembly 309 includes a conveying motor mounting box 3091, which is fixedly mounted on the top of the connecting seat 3065. A conveying drive motor 3092 is fixedly mounted on the conveying motor mounting box 3091. A conveying drive gear 3093 is fixedly mounted on one end of the output shaft of the conveying drive motor 3092 that extends into the interior of the conveying motor mounting box 3091. A conveying driven gear 3094 is fixedly mounted on the top end of the vertical conveying auger 3062 that extends through the top of the connecting seat 3065. The conveying drive gear 3093 and the conveying driven gear 3094 are connected by gear meshing.

[0065] During operation, the conveying drive assembly 309 provides power to the vertical conveying assembly 306, driving the fly ash particles to be conveyed vertically. The conveying motor mounting box 3091, fixed to the top of the connecting seat 3065, provides protection and a mounting base for the internal transmission components. After the externally mounted conveying drive motor 3092 starts, its output shaft drives the conveying drive gear 3093, which runs through the inside of the mounting box, to rotate. Since the conveying drive gear 3093 and the conveying driven gear 3094 at the top of the vertical conveying auger 3062 form a transmission connection through gear meshing, the rotational force of the conveying drive gear 3093 is precisely transmitted to the conveying driven gear 3094, thereby driving the vertical conveying auger 3062 to rotate synchronously within the feed conveying pipe 3061.

[0066] Please refer to the above as well. Figures 1 to 10In one specific embodiment of this application, the exhaust device 400 includes an exhaust fan mounting box 401, which is fixedly and sealed on the top of the top feed box 301 in the feeding device 300. An exhaust fan mounting hole 402 is provided on the exhaust fan mounting box 401, and an exhaust fan 403 is installed inside the exhaust fan mounting hole 402. An exhaust hood 404 is fixedly fitted on the outside of the exhaust fan mounting box 401, and an exhaust pipe 405 is fixedly connected to the exhaust hood 404. The exhaust pipe 405 is connected to an external waste gas treatment system.

[0067] During operation, the exhaust device 400, as the end of the equipment's airflow circulation, is responsible for discharging the gases that have participated in heat exchange and reaction and guiding them to subsequent processing stages. The exhaust fan mounting box 401, fixedly and sealed at the top of the top feed box 301, ensures a leak-free connection with the feed device 300 through its own sealing structure. Its exhaust fan mounting hole 402 provides a stable mounting position for the exhaust fan 403. When the exhaust fan 403 starts, it creates a negative pressure inside the exhaust fan mounting box 401, thereby generating a directional airflow suction force within the equipment. This suction force draws the airflow passing through the feed device 300, the top continuous conveyor 200, the incineration device 100, the bottom continuous conveyor 200, and the discharge device 500 into the exhaust fan mounting box 401. The airflow entering the exhaust fan mounting box 401 is then pushed by the exhaust fan 403 to the outer exhaust hood 404. The exhaust hood 404, through its own structure, gathers the airflow to prevent it from spreading, and then, through the exhaust pipe 405 fixedly connected to it, stably delivers the airflow to the external waste gas treatment system. Throughout the process, the sealing design of the exhaust fan mounting box 401, the negative pressure suction of the exhaust fan 403, the airflow gathering of the exhaust hood 404, and the directional delivery of the exhaust pipe 405 work together to ensure smooth airflow circulation inside the equipment and prevent the direct emission of pollutant-containing airflow, thus meeting environmental protection requirements.

[0068] Please refer to the above as well. Figures 1 to 10 In one specific embodiment of this application, the discharge device 500 includes a discharge box 501. The discharge box 501 is fixedly installed at the bottom of the transfer box 201 in the continuous conveying device 200 located below the incineration device 100. An obliquely arranged discharge plate 502 is fixedly installed inside the discharge box 501. The discharge plate 502 is provided with a uniformly distributed third mesh 503. A discharge port 504 is provided on the side wall of the discharge box 501 corresponding to the lower end of the obliquely arranged discharge plate 502. A discharge conveyor belt 505 connected to an external collection device is fixedly installed on the outside of the discharge box 501 corresponding to the discharge port 504.

[0069] During operation, the discharge device 500 is responsible for receiving and conveying the fly ash particles after combustion by the incinerator 100. The calcined material falls from the transfer chute 204 of the transfer box 201 in the continuous conveyor 200 below the incinerator 100, enters the discharge box 501 fixed at its bottom, and falls onto the inclined discharge plate 502. Because the discharge plate 502 is inclined, the material slides down the plate surface under the action of gravity. During this process, the airflow delivered by the air supply device 600 can pass through the material layer through the third mesh 503 on the discharge plate 502, on the one hand absorbing the residual heat of the material to preheat the airflow, and on the other hand accelerating the cooling of the material to prevent the high-temperature material from sticking together or damaging the equipment.

[0070] After the material slides down to the lower end of the inclined discharge plate 502, it is discharged from the discharge port 504 on the side wall of the discharge box 501 and falls onto the corresponding discharge conveyor belt 505 installed on the outside of the discharge box 501. The discharge conveyor belt 505 stably transports the cooled material to the external collection device, completing the end treatment of the entire firing process. The inclined design of the discharge plate 502 ensures smooth material transportation, the third mesh 503 achieves full contact between airflow and material, and the precise docking of the discharge port 504 and the discharge conveyor belt 505 ensures leak-free material transportation. The efficient cooperation of the overall structure provides a reliable guarantee for continuous material discharge from the equipment.

[0071] Please refer to the above as well. Figures 1 to 10 In one specific embodiment of this application, the air supply device 600 includes a base 601, an air inlet 602 is provided on the base 601, an air inlet mesh plate 603 is fixedly installed inside the air inlet 602, the air inlet mesh plate 603 has evenly distributed fourth mesh holes 604, an air intake fan mounting box 605 is fixedly installed inside the air inlet 602 on the upper surface of the air inlet mesh plate 603, the air intake fan mounting box 605 has an air intake fan mounting hole 606, and an air intake fan 607 is installed inside the air intake fan mounting hole 606. The discharge box 501 in the discharge device 500 is fixedly installed on the base 601, covering the position of the air inlet 602.

[0072] During operation, the air supply device 600 provides a stable airflow source for the entire equipment and is the starting point of the entire airflow circulation system. The base 601 serves as the installation foundation, and its air inlet 602 provides a channel for external air. The air inlet mesh plate 603 inside the air inlet 602 performs preliminary filtration of the incoming air through evenly distributed fourth mesh holes 604, blocking external impurities from entering the equipment and ensuring the cleanliness of the airflow.

[0073] The intake fan mounting box 605 is fixed to the upper surface of the intake mesh plate 603, providing a sealed installation space for the intake fan 607. The intake fan mounting hole 606 ensures that the intake fan 607 is securely installed. When the intake fan 607 is started, it draws in air from the outside through the fourth mesh hole 604 of the intake mesh plate 603, pressurizes it, and then conveys it upward. Since the discharge box 501 of the discharge device 500 is fixedly installed on the base 601 and covers the air inlet 602, the airflow conveyed by the intake fan 607 will directly enter the discharge box 501, and then pass through the third mesh hole 503 of the discharge plate 502, the first mesh hole 203 of the transfer mesh plate 202 of the bottom continuous conveying device 200, the incineration device 100, and the top continuous conveying device 200 in sequence, and finally be discharged through the feeding device 300 and the exhaust device 400, forming a complete airflow cycle.

[0074] The sealed structure of the air intake fan mounting box 605 prevents airflow leakage, the filtering function of the air intake mesh plate 603 protects the downstream equipment components, and the stable air supply of the air intake fan 607 provides oxygen for the combustion reaction of the incineration device 100 and provides a carrier for material heat exchange, ensuring the efficient operation of the entire equipment system.

[0075] The implementation principle of a fly ash granulation and calcination device using continuous conveying in this application embodiment is as follows: This application achieves integrated operation of continuous fly ash particle conveying, stable calcination, waste heat recovery, and environmentally friendly emissions through layered coordination of equipment structure and multi-functional airflow circulation. The equipment operation follows two main lines: continuous material conveying from top to bottom and airflow circulating from bottom to top. These two lines interact in reverse to complete various functions.

[0076] like Figure 3 As shown by the solid arrow, fly ash particles enter from the feeding device 300, are conveyed layer by layer to the incineration device 100 by the continuous conveying device 200 at the top of the incineration device 100 for combustion, and are then conveyed to the discharge device 500 by the continuous conveying device 200 at the bottom of the incineration device 100 for discharge, with no interruption throughout the process.

[0077] At the same time, such as Figure 3 As shown by the hollow arrow, the air supply device 600 supplies air from the bottom, and the airflow passes upward sequentially through the discharge device 500, the continuous conveying device 200 at the bottom of the incineration device 100, the incineration device 100, the continuous conveying device 200 at the top of the incineration device 100, and the feeding device 300, and is finally discharged by the exhaust device 400, forming a closed loop.

[0078] Each device has a clear division of labor around the goal of continuous firing, and its functions are complementary through structural design. In the transfer box 201 of the continuous conveying device 200, several layers of transfer mesh plates 202 are fixedly installed along the height direction. The transfer shaft 205 above the transfer mesh plate 202 drives the transfer roller 206 and the metal chain belt 207 to rotate, so that the scraper 208 slides along the surface of the transfer mesh plate 202, pushing the fly ash particles from the transfer chute 204 layer by layer to ensure stable and uniform material conveying; and the first mesh 203 on the transfer mesh plate 202 provides a flow channel for airflow, so that the airflow can fully contact the material.

[0079] In the incineration device 100, several incinerators 104 are fixed on the incinerator mounting frame 103 inside the incinerator body 101. The gas nozzle 1043 of the incinerator 104 delivers gas to the gas nozzle 1044. The ignition electrode 1049 ignites the mixed gas in the ignition hood 1048 to form a flame, forming a high-temperature area outside the material discharge channel 102. The multiple incinerators 104 are equidistantly distributed to ensure that the fly ash particles are heated evenly. The material discharge channel 102 is directly connected to the continuous conveying device 200 at the top and bottom, so that the burned material can quickly enter the next stage and reduce heat loss.

[0080] Airflow is the core carrier connecting all the devices in series, playing four key roles in the circulation process. Airflow is delivered from the intake fan 607 of the air supply device 600, enters the discharge box 501 of the discharge device 500, passes through the third mesh 503 on the discharge plate 502, absorbs the residual heat of the burning material, lowers the material temperature, and prevents high-temperature damage to components such as the discharge conveyor belt 505. After entering the continuous conveying device 200 at the bottom of the incineration device 100, it flows upward through the first mesh 203 of the transfer mesh plate 202. When it enters the incinerator body 101, the oxygen in the airflow provides an oxidant for the fly ash combustion reaction, ensuring the reaction... The flow is continuous and stable; when passing through the continuous conveying device 200 at the top of the incineration device 100, the airflow guides the flame to diffuse into the transfer box 201, and at the same time, the heat is efficiently transferred to the fly ash particles through the first mesh 203, carrying away light impurities on the particle surface and ensuring full combustion; after entering the top feed box 301 of the feeding device 300, the airflow passes through the second mesh 303 on the feed plate 302, and uses the residual heat it carries to preheat the fly ash particles to be burned that enter from the feed chute 304, reducing the energy consumption of the incineration device 100.

[0081] In terms of environmental protection and energy conservation design, the equipment achieves full-process pollution control and energy consumption optimization. The exhaust fan mounting box 401 of the exhaust device 400 is fixed to the top of the top feed box 301. After the exhaust fan 403 draws in the airflow, it is collected through the exhaust hood 404 and sent to the exhaust pipe 405, directly conveying it to the external waste gas treatment system, avoiding environmental pollution from incineration waste gas and impurities. Furthermore, the top feed box 301 and bottom feed box 307 of the feed device 300, and the discharge box 501 of the discharge device 500 all adopt a sealed structure to prevent fly ash particle leakage. Waste heat recovery is achieved through airflow circulation, and the waste heat at the discharge end is reused for preheating at the feed end, reducing the gas consumption of the incinerator 104. At the same time, an electric regulating valve 1046 is installed on the gas supply branch pipe 1045 of the incinerator 104, which can accurately control the gas supply and avoid energy waste.

[0082] In summary, the equipment solves the problems of batch operation and low efficiency of traditional calcining equipment through the layered conveying structure of the continuous conveying device 200. It realizes the integration of four functions: calcination, cooling, preheating and oxygen supply through the bottom-up airflow circulation, and finally achieves the goal of continuous, low-energy consumption and environmentally friendly fly ash calcination, which is suitable for large-scale fly ash treatment scenarios.

[0083] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fly ash granulation and calcination device employing continuous conveying, characterized in that: The device includes an incineration unit (100), with a continuous conveying device (200) fixedly and sealed at both the top and bottom. A feeding device (300) is fixedly and sealed at the top of the continuous conveying device (200) of the incineration unit (100), and an exhaust device (400) is fixedly and sealed at the top of the feeding device (300). A discharge device (500) is fixedly and sealed at the bottom of the continuous conveying device (200) of the incineration unit (100). A blower (600) is installed at the bottom of the material feeding device (500); the incineration device (100) includes an incinerator body (101), and a material discharge channel (102) is fixedly installed inside the incinerator body (101) near one end, corresponding to two continuous conveying devices (200). Outside the material discharge channel (102), inside the incinerator body (101), corresponding to the continuous conveying device (200) at the top of the incineration device (100), a number of equally spaced incinerators (104) are installed.

2. The fly ash granulation and calcination equipment using continuous conveying as described in claim 1, characterized in that: The incinerator (104) includes an incineration cylinder (1041), a gas nozzle (1043) is fixedly installed at the center of the incineration cylinder (1041), a gas nozzle (1044) is fixedly installed at the top of the gas nozzle (1043), a gas supply branch pipe (1045) is sealed and connected to the bottom of the gas nozzle (1043), an electric regulating valve (1046) is installed on the gas supply branch pipe (1045), multiple gas supply branch pipes (1045) are all connected to the same gas supply main pipe (1047), the gas supply main pipe (1047) is connected to an external gas source; an ignition hood (1048) is fixedly installed at the top of the incineration cylinder (1041), an ignition electrode (1049) is fixedly installed on the ignition hood (1048) corresponding to the gas nozzle (1044), and an air guide hood (1050) is fixedly installed at the bottom of the incineration cylinder (1041).

3. The fly ash granulation and calcination equipment using continuous conveying as described in claim 1, characterized in that: The continuous conveying device (200) includes a transfer box (201), inside which several layers of equally spaced transfer mesh plates (202) are fixedly installed along its height direction. A transfer discharge chute (204) is provided near one end of each transfer mesh plate (202). Inside the transfer box (201), above the transfer mesh plates (202), near both ends of the transfer mesh plates (202), transfer shafts (205) are rotatably connected. Transfer rollers are fixedly connected to the transfer shafts (205). 206), a metal chain belt (207) is fitted on the outer side of the two transfer rollers (206), the metal chain belt (207) is connected to the transfer rollers (206) in a driving connection, and a number of equally distributed scrapers (208) are hinged on the metal chain belt (207), and the end of the scraper (208) away from the metal chain belt (207) is in contact with the surface of the transfer mesh plate (202); a transfer drive assembly (209) that is connected to the transfer shaft (205) is fixedly installed on the outer side of the transfer box (201).

4. The fly ash granulation and calcination equipment using continuous conveying as described in claim 3, characterized in that: The transfer drive assembly (209) includes a transfer motor mounting box (2091), which is fixedly installed on the outside of the transfer box (201). A transfer drive motor (2092) is fixedly installed on the transfer motor mounting box (2091). A transfer drive gear (2093) is fixedly installed at one end of the output shaft of the transfer drive motor (2092) that passes through the inside of the transfer motor mounting box (2091). A transfer driven gear (2094) is fixedly installed at the outer end of the transfer shaft (205) that passes through the transfer box (201). The transfer drive gear (2093) and the transfer driven gear (2094) are connected by gear meshing transmission.

5. The fly ash granulation and calcination equipment using continuous conveying as described in claim 1, characterized in that: The feeding device (300) includes a top feeding box (301), which is fixedly installed on the top of the continuous conveying device (200) located above the incineration device (100). An obliquely arranged feeding plate (302) is fixedly installed inside the top feeding box (301). The feeding plate (302) has evenly distributed second mesh holes (303) and a feeding chute at its obliquely arranged lower end. 304); The top feed box (301) has a feed inlet (305) on its side wall, which is obliquely set at the high end corresponding to the feed plate (302). A vertical conveying assembly (306) is fixedly installed on the outside of the top feed box (301) corresponding to the feed inlet (305). The bottom of the vertical conveying assembly (306) is connected to the bottom feed box (307). A feed conveyor belt (308) connected to an external granulation device is installed on the bottom feed box (307).

6. The fly ash granulation and calcination equipment using continuous conveying as described in claim 5, characterized in that: The vertical conveying assembly (306) includes a feed conveying pipe (3061), which is fixedly installed on the inner bottom surface of the bottom feed box (307). A vertical conveying auger (3062) is rotatably connected inside the feed conveying pipe (3061). A feed inlet (3063) is provided on the side wall of the feed conveying pipe (3061) near its lower end, and a feed outlet (3064) is provided at the top end of the feed conveying pipe (3061). 1) A connecting seat (3065) is fixedly installed on the feed output port (3064). The connecting seat (3065) is fixedly installed on the top feed box (301) at the position corresponding to the feed port (305). The connecting seat (3065) has a conveying cavity (3066) inside that connects the feed output port (3064) and the feed port (305). The top of the vertical conveying auger (3062) passes through the connecting seat (3065) and is connected to a conveying drive assembly (309).

7. The fly ash granulation and calcination equipment using continuous conveying as described in claim 6, characterized in that: The conveying drive assembly (309) includes a conveying motor mounting box (3091), which is fixedly mounted on the top of the connecting seat (3065). A conveying drive motor (3092) is fixedly mounted on the conveying motor mounting box (3091). A conveying drive gear (3093) is fixedly mounted on one end of the output shaft of the conveying drive motor (3092). A conveying driven gear (3094) is fixedly mounted on the top end of the vertical conveying auger (3062) that passes through the connecting seat (3065). The conveying drive gear (3093) and the conveying driven gear (3094) are connected by gear meshing transmission.

8. The fly ash granulation and calcination equipment using continuous conveying as described in claim 1, characterized in that: The exhaust device (400) includes an exhaust fan mounting box (401), which is fixedly and sealed on the top of the feeding device (300). An exhaust fan mounting hole (402) is provided on the exhaust fan mounting box (401), and an exhaust fan (403) is installed inside the exhaust fan mounting hole (402). An exhaust hood (404) is fixedly fitted on the outside of the exhaust fan mounting box (401), and an exhaust pipe (405) is fixedly connected to the exhaust hood (404). The exhaust pipe (405) is connected to an external waste gas treatment system.

9. A fly ash granulation and calcination device employing continuous conveying as described in claim 1, characterized in that: The discharge device (500) includes a discharge box (501), which is fixedly installed at the bottom of the continuous conveying device (200) located below the incineration device (100). An obliquely arranged discharge plate (502) is fixedly installed inside the discharge box (501). The discharge plate (502) is provided with a uniformly distributed third mesh (503). A discharge port (504) is provided on the side wall of the discharge box (501) at the lower end of the obliquely arranged discharge plate (502). A discharge conveyor belt (505) connected to an external collection device is fixedly installed on the outside of the discharge box (501) corresponding to the discharge port (504).

10. A fly ash granulation and calcination device employing continuous conveying as described in claim 1, characterized in that: The air supply device (600) includes a base (601), an air inlet (602) is provided on the base (601), an air inlet mesh plate (603) is fixedly installed inside the air inlet (602), a fourth mesh (604) is provided on the air inlet mesh plate (603) and a fan mounting box (605) is fixedly installed inside the air inlet (602) on the upper surface of the air inlet mesh plate (603), a fan mounting hole (606) is provided on the fan mounting box (605), and a fan (607) is installed inside the fan mounting hole (606).

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