Waste incineration fly ash particle maintenance system

Abstract

The invention discloses a waste incineration fly ash particle maintenance system, and relates to the technical field of waste incineration fly ash. The waste incineration fly ash particle curing system comprises a curing bin and a material spreading and conveying device arranged in the curing bin, and the curing bin is provided with a material collecting and distributing device communicated with the feeding end of the material spreading and conveying device and a discharging device communicated with the discharging end of the material spreading and conveying device. The temperature and humidity monitoring device is used for detecting the temperature and humidity in the curing bin; the temperature adjusting device is used for adjusting the temperature in the curing bin; and the humidity adjusting device is used for adjusting the humidity in the curing bin. The waste incineration fly ash particle curing system provided by the embodiment of the invention is used for curing semi-finished fly ash particles under the constant-temperature and constant-humidity condition, and the curing quality and efficiency of the fly ash particles can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of waste incineration fly ash, and in particular to a waste incineration fly ash particle curing system. Background Art

[0002] Waste incineration fly ash, a fine particulate matter produced during the incineration process, contains harmful substances such as heavy metals and dioxins, posing a high environmental risk. A current fly ash treatment method involves mixing the fly ash with a geopolymer precursor to form pellets. These pellets are then fed into a curing system for curing, thereby achieving harmless treatment and resource utilization of the fly ash.

[0003] Currently, the main curing systems for waste incineration fly ash particles include natural curing systems and hydrothermal curing systems. Natural curing systems rely on the temperature and humidity of the natural environment to cure fly ash particles, while hydrothermal curing systems utilize the principle of hydrothermal reaction to cure fly ash particles in a high-temperature, high-pressure water environment.

[0004] However, existing curing systems have the following drawbacks: 1. Natural curing systems, due to the large fluctuations in temperature and humidity in the natural environment, make it difficult to maintain the optimal temperature and humidity for fly ash particles throughout the curing process. This leads to uncertainty in curing time and can cause some particles to experience quality issues due to inadequate curing conditions. 2. Hydrothermal curing systems, with their complex equipment and demanding operating conditions, have high curing costs, operational difficulties, and potential safety hazards, make them difficult to adapt to the large-scale demand for fly ash resource recovery. Summary of the Invention

[0005] The purpose of this application is to provide a waste incineration fly ash particle curing system to improve the curing quality and efficiency of waste incineration fly ash particles.

[0006] The technical solution adopted by this application to solve its technical problems is:

[0007] A waste incineration fly ash particle curing system includes a curing bin and a material spreading and conveying device arranged in the curing bin. The curing bin is provided with a material collecting and distributing device connected to the feed end of the material spreading and conveying device and a material discharging device connected to the discharge end of the material spreading and conveying device. The curing bin also includes a temperature and humidity monitoring device for detecting the temperature and humidity in the curing bin, a temperature regulating device for regulating the temperature in the curing bin, and a humidity regulating device for regulating the humidity in the curing bin.

[0008] Furthermore, the material laying and conveying device includes at least two belt conveyors arranged at intervals from top to bottom, and the conveying directions of any two adjacent belt conveyors are opposite. The feed end of each belt conveyor is provided with a material receiving baffle extending obliquely upward to the outside of the discharge end of the upper belt conveyor.

[0009] Furthermore, the material laying and conveying device also includes a level detection device arranged at the discharge end of the belt conveyor adjacent to the lowest layer.

[0010] Furthermore, the material paving and conveying device also includes a material terminal mechanism provided above the discharge end of the belt conveyor at the lowest layer, and the material terminal mechanism is capable of opening and closing the discharge end of the belt conveyor.

[0011] Furthermore, the material collection and distribution device includes a semi-finished product collection pipe, a scraper-type discharger and a distribution pipe. A semi-finished product feed port is provided on the top wall of the curing bin. The lower end of the semi-finished product collection pipe is connected to the semi-finished product feed port through the scraper-type discharger, and the semi-finished product feed port is connected to the feed end of the material paving and conveying device through the distribution pipe.

[0012] Furthermore, the material distribution pipe extends obliquely downward along the conveying direction of the material distribution conveying device, the width of the inner cavity of the material distribution pipe gradually increases from top to bottom, and the height of the inner cavity of the material distribution pipe gradually decreases from top to bottom.

[0013] Furthermore, the discharging device includes a finished product collection hopper and a discharging door. The side wall of the curing bin is provided with a finished product discharge port located below the discharge end of the belt conveyor on the lowest layer. The discharge end of the belt conveyor on the lowest layer is connected to the finished product discharge port through the finished product collection hopper, and the discharge door is used to open and close the finished product discharge port.

[0014] Furthermore, the temperature regulating device includes a steam heat exchange hot air blower, the hot air outlet of the steam heat exchange hot air blower is connected to the inner cavity of the curing bin through an air outlet pipe, and the hot air inlet of the steam heat exchange hot air blower is connected to the inner cavity of the curing bin through an air inlet pipe, and an exhaust fan is provided on the air inlet pipe.

[0015] Furthermore, the humidity regulating device includes a moisturizing liquid pressure tank, which is connected to a spray pipe through a delivery pipe. A regulating valve is provided on the delivery pipe. The spray pipe is arranged in the curing chamber and is provided with a plurality of atomizing nozzles.

[0016] Furthermore, the humidity regulating device also includes an exhaust fan arranged in the curing chamber.

[0017] Beneficial effects of this application:

[0018] The waste incineration fly ash particle curing system provided in the embodiment of the present application is used to cure semi-finished fly ash particles under constant temperature and humidity conditions, which can improve the curing quality and efficiency of fly ash particles. Compared with the natural curing system, the present application can accurately control the temperature and humidity environment in the curing bin through the cooperation of the temperature and humidity monitoring device, the temperature regulating device and the humidity regulating device, and is no longer restricted by the temperature and humidity changes in the natural environment. It can ensure that the fly ash particles are always under suitable temperature and humidity conditions throughout the curing process, avoiding quality problems caused by insufficient curing conditions due to environmental factors, thereby significantly improving the curing quality of fly ash particles. Compared with the hydrothermal curing system, the present application does not require complex high-temperature and high-pressure equipment, simplifies the equipment structure, does not require a harsh high-pressure environment during operation, reduces operational difficulty and safety hazards, and is easier to achieve large-scale application of fly ash resource disposal, which can better meet the needs of actual production, reduce overall curing costs, and improve the economy and feasibility of fly ash treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 Schematic diagram of the structure of the waste incineration fly ash particle curing system provided in an embodiment of the present application;

[0021] Figure 2 It is a structural schematic diagram of a paving material conveying device;

[0022] Figure 3 It is a structural diagram of the level detection device and the material terminal mechanism;

[0023] Figure 4 It is a structural diagram of a material collecting and distributing device;

[0024] Figure 5 It is a structural diagram of the discharging device;

[0025] Figure 6 It is a structural diagram of a temperature regulating device;

[0026] Figure 7 It is a structural diagram of a humidity control device.

[0027] Reference numerals:

[0028] 1-Maintenance warehouse;

[0029] 11-semi-finished product feeding port; 12-finished product discharging port;

[0030] 2-Paving material conveying device;

[0031] 21-belt conveyor; 211-conveyor belt; 212-driving roller; 213-redirecting roller; 214-support roller; 22-material receiving baffle; 23-level detection device; 231-detection frame; 232-level sensing probe; 24-material terminal mechanism;

[0032] 3- Material collecting device;

[0033] 31-semi-finished product collecting pipe; 32-scraper type discharging machine; 33-distributing pipe; 34-sight glass; 35-level detector;

[0034] 4-discharging device;

[0035] 41- finished product collection hopper; 42- discharge door; 43- discharge port guide slide; 43- discharge port guide slide;

[0036] 5- Temperature and humidity monitoring device;

[0037] 51-temperature transmitter; 52-wet and dry transmitter;

[0038] 6- Temperature regulating device;

[0039] 61-steam heat exchange hot air blower; 62-air outlet pipe; 63-air inlet pipe; 64-exhaust fan; 65-steam regulating valve;

[0040] 7- Humidity control device;

[0041] 71-Moisturizing liquid pressure tank; 711-Moisturizing liquid replenishing pipe; 712-Atomizing pressurized air inlet pipe; 72-Delivery pipe; 73-Spray pipe; 74-Regulating valve; 75-Atomizing nozzle; 76-Exhaust fan. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0043] In the description of this application, the terms "upper," "lower," "left," "right," "front," "back," "inner," and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions may be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are met.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0045] See also Figure 1 The embodiment of the present application provides a waste incineration fly ash particle curing system, including a curing bin 1 and a material spreading and conveying device 2 arranged in the curing bin 1, the curing bin 1 is provided with a material collecting and distributing device 3 connected to the feeding end of the material spreading and conveying device 2 and a discharging device 4 connected to the discharging end of the material spreading and conveying device 2, and also includes a temperature and humidity monitoring device 5 for detecting the temperature and humidity in the curing bin 1, a temperature regulating device 6 for adjusting the temperature in the curing bin 1 and a humidity regulating device 7 for adjusting the humidity in the curing bin 1.

[0046] The curing bin 1 is a relatively closed space, which is used to provide a stable curing environment for the semi-finished fly ash particles. Exemplarily, the curing bin 1 is a rectangular structure and can be made of steel. Of course, the curing bin 1 can also be of other shapes and can be made of other materials, which are not specifically limited here. The bottom of the curing bin 1 can be provided with legs or supports to support it. Several observation holes that can be opened and closed can also be provided around the curing bin 1, and the operator can observe the laying and curing of the semi-finished fly ash particles in the curing bin 1 by opening the observation holes. Of course, transparent observation windows can also be provided around the curing bin 1, and the operator can directly observe the laying and curing of the semi-finished fly ash particles in the curing bin 1 through the observation windows.

[0047] The material spreading and conveying device 2 is installed in the curing bin 1. It can not only evenly spread the semi-finished fly ash particles at the designated position in the curing bin 1, ensuring that the fly ash particles in the curing bin 1 can be cured under the same temperature and humidity conditions, and ensuring the consistency of the curing quality of the fly ash particles, but also can convey the finished fly ash particles to the discharging device 4 after the curing is completed, so as to facilitate subsequent processing and utilization.

[0048] The collecting and distributing device 3 is mounted on the top wall of the curing bin 1. It is used to collect semi-finished fly ash particles that meet the size requirements after being screened by the drum. After the semi-finished fly ash particles reach a certain amount, they are fed into the feed end of the material spreading and conveying device 2 in the curing bin 1 according to a certain pattern. This prevents the semi-finished fly ash particles on the material spreading and conveying device 2 from being intermittent and reducing efficiency, and also prevents the material spreading and conveying device 2 from idling. The discharging device 4 is mounted on the bottom of the side wall of the curing bin 1. It is used to remove the finished fly ash particles after curing from the curing bin 1 for subsequent processing or utilization.

[0049] The temperature and humidity monitoring device 5 is used to collect real-time temperature and humidity data within the curing chamber 1 to detect the temperature and humidity within the curing chamber 1. The temperature regulating device 6 is used to adjust the temperature within the curing chamber 1 so that the temperature within the curing chamber 1 is maintained within a preset curing temperature range. The humidity regulating device 7 is used to adjust the humidity within the curing chamber 1 so that the humidity within the curing chamber 1 is maintained within a preset curing humidity range.

[0050] See also Figure 1 The maintenance method of the waste incineration fly ash particle maintenance system provided in the embodiment of the present application includes the following steps:

[0051] S1. Use the collecting and distributing device 3 to continuously collect the semi-finished fly ash particles that meet the size requirements after being screened by the drum. When the semi-finished fly ash particles collected in the collecting and distributing device 3 reach the preset capacity, start the collecting and distributing device 3 to send the semi-finished fly ash particles into the feed end of the paving and conveying device 2 according to a certain pattern; at the same time, start the paving and conveying device 2, and the paving and conveying device 2 evenly spreads the semi-finished fly ash particles in the curing bin 1. When the paving of the semi-finished fly ash particles is completed, close the paving and conveying device 2 and the collecting and distributing device 3.

[0052] S2. Use the temperature and humidity monitoring device 5 to monitor the temperature and humidity in the curing bin 1 in real time, use the temperature regulating device 6 to adjust the temperature in the curing bin 1 and maintain it at a preset temperature of 60°C, and use the humidity regulating device 7 to adjust the humidity in the curing bin 1 and maintain it at a preset humidity of 95% RH; when the temperature and humidity in the curing bin 1 meet the preset requirements, set the curing time to 3d and enter the timing stage; when the timing ends, turn off the temperature regulating device 6 and the humidity regulating device 7, and the curing work of the semi-finished fly ash particles is completed.

[0053] S3. After the temperature in the curing bin 1 reaches room temperature, the material conveying device 2 is started to move the cured fly ash particles out of the curing bin 1 through the discharging device 4 and package them.

[0054] The waste incineration fly ash particle curing system provided in the embodiments of the present application is used to cure semi-finished fly ash particles under constant temperature and humidity conditions, thereby improving the curing quality and efficiency of the fly ash particles. This is because such curing conditions can promote the reaction kinetics within the fly ash particles, effectively avoiding structural looseness or mechanical property defects caused by incomplete reactions. The continuous curing process can also promote the gradient diffusion and orderly escape of water within the fly ash particles, preventing the premature evaporation of free water that does not participate in the reaction, thereby achieving stable reconstruction of the microstructure, effectively inhibiting the initiation and expansion of microcracks within the material, and promoting the formation of a uniform and dense matrix, thereby significantly improving the material's impermeability and durability indicators.

[0055] Compared to the natural curing system, the present application can accurately control the temperature and humidity environment in the curing bin 1 through the cooperation of the temperature and humidity monitoring device 5, the temperature regulating device 6 and the humidity regulating device 7. It is no longer restricted by the temperature and humidity changes in the natural environment, and can ensure that the fly ash particles are always under appropriate temperature and humidity conditions throughout the curing process, avoiding quality problems caused by insufficient curing conditions due to environmental factors, thereby significantly improving the curing quality of the fly ash particles. Compared to the hydrothermal curing system, the present application does not require complex high-temperature and high-pressure equipment, simplifies the equipment structure, does not require a harsh high-pressure environment during operation, reduces operational difficulty and safety hazards, and is easier to achieve large-scale application of fly ash resource disposal, which can better meet the needs of actual production, reduce overall curing costs, and improve the economy and feasibility of fly ash treatment.

[0056] In some embodiments, see Figure 2 The material laying and conveying device 2 includes at least two belt conveyors 21 spaced apart from each other from top to bottom. The conveying directions of any two adjacent belt conveyors 21 are opposite. The feed end of each belt conveyor 21 is provided with a material receiving baffle 22 extending obliquely upward to the outside of the discharge end of the upper belt conveyor 21.

[0057] The feed end of the uppermost belt conveyor 21 forms the feed end of the entire paving and conveying device 2, and the discharge end of the lowermost belt conveyor 21 forms the discharge end of the entire paving and conveying device 2. By arranging at least two belt conveyors 21 spaced apart from each other from top to bottom, the semi-finished fly ash particles can be spread and conveyed between the belt conveyors 21 at different heights. Under the condition of the same paving thickness, the paving amount of the semi-finished fly ash particles in the curing bin 1 is increased. By setting the conveying directions of two adjacent belt conveyors 21 in opposite directions, the feed end of the lower belt conveyor 21 is located just below the discharge end of the upper belt conveyor 21. Thus, by setting a material receiving baffle 22 extending obliquely upward at the feed end of each belt conveyor 21, the material receiving baffle 22 extends all the way to the outside of the discharge end of the upper belt conveyor 21. The material receiving baffle 22 can be used to receive the fly ash particles conveyed by the upper belt conveyor 21 and guide them to the feed end of the belt conveyor 21 on this layer, so that the semi-finished fly ash particles can be smoothly transferred from the upper belt conveyor 21 to the lower belt conveyor 21. The material receiving baffle 22 can be connected to the frame of the belt conveyor 21 or to the side wall of the curing bin 1.

[0058] See also Figure 2The belt conveyor 21 primarily comprises a conveyor belt 211, a driving roller 212, a redirecting roller 213, idlers 214, a tensioning device, a drive device, and a frame. The conveyor belt 211 can be a belt, mesh belt, or chain belt. It winds between the driving roller 212 and the redirecting roller 213 to form a closed loop, carrying and conveying fly ash particles. The surface of the conveyor belt 211 is provided with protrusions to prevent fly ash particles from rolling freely on the conveyor belt 211. The height and density of the protrusions can be determined based on calculations. The edge of the conveyor belt 211 can be adjacent to the sidewall of the curing bin 1, with the gap between the two being smaller than the diameter of the fly ash particles. This prevents fly ash particles from falling off the edge of the conveyor belt 211. For example, flanges are provided on both edges of the conveyor belt 211. The flanges are used to block the fly ash particles on the conveyor belt 211 and prevent them from falling from the two edges of the conveyor belt 211. At the same time, they can also increase the tension strength of the conveyor belt 211. This structure does not rely on the gap between the edge of the conveyor belt 211 and the side wall of the curing bin 1 and has a wider range of applications. The drive device is used to drive the active roller 212 to rotate. The power is transmitted to the conveyor belt 211 through the friction between the active roller 212 and the conveyor belt 211, so that the conveyor belt 211 can move continuously to achieve the laying and transportation of fly ash particles. Matching gear teeth can also be provided between the conveyor belt 211 and the active roller 212 to prevent slippage between the two and ensure that the linear speeds of the two remain consistent. In order to ensure the consistency of the conveying speed of each layer of belt conveyors 21, all belt conveyors 21 can share a common drive device; this drive device includes a reducer and a conventional chain mechanism, and the reducer is connected to the active roller 212 of each layer of belt conveyors 21 through a chain transmission mechanism; thus, the reducer can be used to provide power, and the conventional chain mechanism can be used to transmit power to each active roller 212 to achieve synchronous operation of all active rollers 212 and ensure the consistency of the conveying speed of each layer of belt conveyors 21. The rollers 214 are used to support the conveyor belt 211, reduce the sagging of the conveyor belt 211, and ensure that the conveyor belt 211 can run smoothly; by providing multiple rollers 214 under each conveyor belt 211, the tension of the conveyor belt 211 can also be reduced, reducing the thickness of the conveyor belt 211. The tensioning device is used to adjust the tension of the conveyor belt 211 to prevent the conveyor belt 211 from deviating and sagging. The frame is used to install and fix the conveyor belt 211, the driving roller 212, the redirecting roller 213, the roller 214, the tensioning device, the driving device and other components. Each belt conveyor 21 is installed in the curing bin 1 through the frame. Figure 2 The structures of the tensioning device, the driving device and the frame are not shown.

[0059] In some embodiments, see Figure 2 、 Figure 3The paving conveyor device 2 further includes a level detection device 23 disposed adjacent to the discharge end of the lowest belt conveyor 21. Accordingly, the level detection device 23 is configured to detect whether fly ash particles have been conveyed to the discharge end of the lowest belt conveyor 21 during paving, thereby facilitating the operator to promptly and accurately shut down the paving conveyor device 2.

[0060] The level detection device 23 and the material spreading and conveying device 2 can be connected to the control system respectively. During operation, when the material spreading and conveying device 2 is started to spread the semi-finished fly ash particles, if the level detection device 23 detects a material signal, indicating that the material has been conveyed to the discharge end of the bottom belt conveyor 21, the level detection device 23 will transmit the detected material signal to the control system, and the control system will control the material spreading and conveying device 2 to shut down, thus completing the spreading of the semi-finished fly ash particles in the curing bin 1.

[0061] Exemplarily, the level detection device 23 may include a detection frame 231 and a level sensing probe 232. The detection frame 231 may be connected to the side wall of the curing bin 1 or the frame of the belt conveyor 21. The level sensing probe 232 is located above the discharge end of the lowest belt conveyor 21 and is connected to the detection frame 231. The level sensing probe 232 can be used to detect whether the material has been conveyed to the discharge end of the lowest belt conveyor 21 during material laying. The level sensing probe 232 can be connected to a control system. During the material laying process, when the level sensing probe 232 detects material, it transmits a material signal to the control system, which controls the material laying and conveying device 2 to shut down.

[0062] In some embodiments, see Figure 2 、 Figure 3 The paving and conveying device 2 also includes a material terminal mechanism 24 located above the discharge end of the lowest belt conveyor 21. This mechanism is capable of opening and closing the discharge end of the belt conveyor 21. Accordingly, by providing this mechanism, the discharge end of the lowest belt conveyor 21 can be closed during paving, trapping fly ash particles within the conveyor belt 211. This prevents fly ash particles from falling from the discharge end of the conveyor belt 211 due to operating inertia after the paving and conveying device 2 is closed. After curing is complete, the paving and conveying device 2 can be used to transport the finished fly ash particles away by simply opening the material terminal mechanism 24.

[0063] Exemplarily, the material terminal mechanism 24 may include a baffle and a driving member; the driving member may be a linear driving mechanism such as a cylinder or an electric push rod, used to drive the baffle to move up and down to open and close the discharge end of the bottom belt conveyor 21; the driving member may also be a motor, used to drive the baffle to flip in the vertical plane to open and close the discharge end of the bottom belt conveyor 21.

[0064] In some embodiments, see Figure 4 The material collecting and distributing device 3 includes a semi-finished product collecting pipe 31, a scraper-type discharging machine 32 and a distributing pipe 33. A semi-finished product feeding port 11 is provided on the top wall of the curing bin 1. The lower end of the semi-finished product collecting pipe 31 is connected to the semi-finished product feeding port 11 through the scraper-type discharging machine 32, and the semi-finished product feeding port 11 is connected to the feeding end of the material paving and conveying device 2 through the distributing pipe 33.

[0065] Accordingly, a semi-finished product collecting pipe 31 is provided to collect the semi-finished product fly ash particles that meet the size requirements and are screened by the drum; a scraper-type discharger 32 is provided to evenly feed the semi-finished product fly ash particles in the semi-finished product collecting pipe 31 into the semi-finished product feed port 11, and roll them down to the feed end of the uppermost belt conveyor 21 through the distribution pipe 33 to achieve uniform distribution.

[0066] Exemplarily, the semi-finished product collection pipe 31, the scraper-type discharging device 32, the semi-finished product feed port 11, and the distribution pipe 33 are all connected via flange bolts. A sight glass 34 may also be provided on the semi-finished product collection pipe 31 to allow the operator to observe the amount of semi-finished product fly ash particles collected in the semi-finished product collection pipe 31. To achieve automatic control of the collection and distribution device 3, a level detector may also be provided in the semi-finished product collection pipe 31. The level detector and the scraper-type discharging device 32 are both connected to a control system. When the semi-finished product fly ash particles in the semi-finished product collection pipe 31 reach a predetermined number, the level detector detects an analog signal of the fly ash particles and transmits the signal to the control system. The control system then activates the scraper-type discharging device 32 according to a pre-programmed program to uniformly feed the semi-finished product fly ash particles in the semi-finished product collection pipe 31 into the semi-finished product feed port 11. This prevents the semi-finished product fly ash particles from being intermittently distributed on the material spreading and conveying device 2, which reduces efficiency, and also prevents the material spreading and conveying device 2 and the scraper-type discharging device 32 from idling.

[0067] In some embodiments, see Figure 4 The distribution pipe 33 extends obliquely downward along the conveying direction of the paving conveyor 2. The width of the inner cavity of the distribution pipe 33 gradually increases from top to bottom, while the height of the inner cavity of the distribution pipe 33 gradually decreases from top to bottom. The width of the inner cavity of the distribution pipe 33 aligns with the width of the conveyor belt 211. Accordingly, the provision of the distribution pipe 33 with an oblique downward extension and a variable diameter structure can buffer the semi-finished fly ash particles rolling down from the scraper discharger 32 within the distribution pipe 33, slowing their falling speed and promoting uniform paving.

[0068] In some embodiments, see Figure 5The discharge device 4 includes a finished product collection hopper 41 and a discharge door 42. A finished product discharge port 12 is provided on the side wall of the curing bin 1, located below the discharge end of the lowest belt conveyor 21. The discharge end of the lowest belt conveyor 21 is connected to the finished product discharge port 12 through the finished product collection hopper 41. The discharge door 42 is used to open and close the finished product discharge port 12. Exemplarily, the discharge door 42 can be opened and closed by rotating. Accordingly, when the curing is completed, the discharge door 42 is opened, the belt conveyor 21 is started, and the finished fly ash particles are fed into the finished product collection hopper 41. The finished fly ash particles are then moved out of the curing bin 1 through the finished product discharge port 12 for packaging. Exemplarily, a discharge port guide slide 43 extending obliquely downward is further provided at the lower end of the finished product discharge port 12. The discharge port guide slide 43 is used to guide the finished fly ash particles, so that the finished fly ash particles can be quickly bagged.

[0069] In some embodiments, see Figure 1 The temperature and humidity monitoring device 5 includes a temperature transmitter 51 and a humidity transmitter 52 provided in the curing chamber 1. The temperature transmitter 51 is used to collect temperature data in the curing chamber 1, and the humidity transmitter 52 is used to collect humidity data in the curing chamber 1.

[0070] In some embodiments, see Figure 6 The temperature regulating device 6 includes a steam heat exchange hot air blower 61. The hot air outlet of the steam heat exchange hot air blower 61 is connected to the inner cavity of the curing bin 1 through an air outlet pipe 62. The hot air inlet of the steam heat exchange hot air blower 61 is connected to the inner cavity of the curing bin 1 through an air inlet pipe 63. An exhaust fan 64 is provided on the air inlet pipe 63.

[0071] The steam heat exchanger hot air blower 61 is a device that uses steam as a heat source and transfers heat to air through heat exchange. The steam inlet of the steam heat exchanger hot air blower 61 is provided with a steam regulating valve 65, which can adjust the flow rate of steam.

[0072] During operation, exhaust fan 64 is activated, extracting air from curing chamber 1 and sending it through air inlet pipe 63 to steam heat exchanger 61 for heating. The heated air is then sent through air outlet pipe 62 into curing chamber 1, achieving hot air circulation and promoting a slow and even temperature increase inside curing chamber 1. During this process, the speed of exhaust fan 64 and the opening of steam regulating valve 65 can be controlled to adjust the temperature increase rate inside curing chamber 1.

[0073] For example, the air outlet duct 62 is connected to the lower part of the inner cavity of the curing chamber 1, and the air inlet duct 63 is connected to the upper part of the inner cavity of the curing chamber 1. This structure can form convection in the curing chamber 1, so that the hot air is evenly distributed throughout the curing chamber 1, avoiding the formation of large temperature differences and reducing condensation.

[0074] In some embodiments, see Figure 7 The humidity control device 7 includes a moisturizing liquid pressure tank 71, which is connected to a spray pipe 73 via a delivery pipe 72. The delivery pipe 72 is provided with a regulating valve 74. The spray pipe 73 is provided in the curing chamber 1 and is provided with a plurality of atomizing nozzles 75. The humidity control device 7 also includes an exhaust fan 76 provided in the curing chamber 1.

[0075] The moisturizing liquid pressure tank 71 is a container for storing moisturizing liquid, such as water, and maintains a certain pressure within it. The moisturizing liquid pressure tank 71 is equipped with a moisturizing liquid replenishment pipe 711 and an atomizing pressurized air inlet pipe 712. Both the moisturizing liquid replenishment pipe 711 and the atomizing pressurized air inlet pipe 712 are equipped with valves. The moisturizing liquid replenishment pipe 711 can be used to replenish the moisturizing liquid into the moisturizing liquid pressure tank 71, while the atomizing pressurized air inlet pipe 712 can be used to deliver gas at a certain pressure into the moisturizing liquid pressure tank 71 to maintain the pressure within the moisturizing liquid pressure tank 71. The bottom of the moisturizing liquid pressure tank 71 is connected to the spray pipe 73 via a delivery pipe 72. A regulating valve 74 is provided on the delivery pipe 72 to control the on / off operation of the delivery pipe 72. The spray pipe 73 is provided with a plurality of atomizing nozzles 75 along its axial direction and in communication with its inner cavity. Several exhaust fans 76 can be installed at the top of the inner cavity of the curing chamber 1 to facilitate the flow and exchange of gas within the curing chamber 1.

[0076] During operation, it is only necessary to open the regulating valve 74. Under the action of pressure, the moisturizing liquid in the moisturizing liquid pressure tank 71 enters the atomizing nozzle 75 through the delivery pipe 72 and the spray pipe 73 in sequence. The moisturizing liquid is atomized by the atomizing nozzle 75 and sprayed into the inner cavity of the curing bin 1. The exhaust fan 76 is started to quickly fill all parts of the curing bin 1 with the atomized liquid sprayed from the atomizing nozzle 75.

[0077] The above is only a specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in this application should be covered by the scope of protection of the present application.

Claims

1. A waste incineration fly ash particle curing system, characterized in that: The invention comprises a curing bin (1) and a material spreading and conveying device (2) arranged in the curing bin (1); the curing bin (1) is provided with a material collecting and distributing device (3) connected to the feeding end of the material spreading and conveying device (2) and a material discharging device (4) connected to the discharging end of the material spreading and conveying device (2); and further comprises a temperature and humidity monitoring device (5) for detecting the temperature and humidity in the curing bin (1), a temperature regulating device (6) for regulating the temperature in the curing bin (1), and a humidity regulating device (7) for regulating the humidity in the curing bin (1).

2. The waste incineration fly ash particle curing system according to claim 1, characterized in that: The material laying conveying device (2) comprises at least two belt conveyors (21) spaced apart from each other from top to bottom, wherein the conveying directions of any two adjacent belt conveyors (21) are opposite, and the feeding end of each belt conveyor (21) is provided with a material receiving baffle (22) extending obliquely upward to the outside of the discharging end of the upper belt conveyor (21).

3. The waste incineration fly ash particle curing system according to claim 2, characterized in that: The material spreading and conveying device (2) further comprises a material level detection device (23) arranged adjacent to the discharge end of the belt conveyor (21) at the lowest layer.

4. The waste incineration fly ash particle curing system according to claim 2, characterized in that: The material laying conveying device (2) further comprises a material terminal mechanism (24) arranged above the discharge end of the belt conveyor (21) at the lowest layer, wherein the material terminal mechanism (24) is capable of opening and closing the discharge end of the belt conveyor (21).

5. The waste incineration fly ash particle curing system according to claim 1, 2, 3 or 4, characterized in that: The material collecting and distributing device (3) comprises a semi-finished product collecting pipe (31), a scraper-type discharging machine (32) and a distributing pipe (33); a semi-finished product feeding port (11) is provided on the top wall of the curing bin (1); the lower end of the semi-finished product collecting pipe (31) is connected to the semi-finished product feeding port (11) through the scraper-type discharging machine (32); and the semi-finished product feeding port (11) is connected to the feeding end of the material spreading and conveying device (2) through the distributing pipe (33).

6. The waste incineration fly ash particle curing system according to claim 5, characterized in that: The material distribution pipe (33) extends obliquely downward along the conveying direction of the material distribution conveying device (2); the width of the inner cavity of the material distribution pipe (33) gradually increases from top to bottom, and the height of the inner cavity of the material distribution pipe (33) gradually decreases from top to bottom.

7. The waste incineration fly ash particle curing system according to claim 1, 2, 3 or 4, characterized in that: The discharging device (4) includes a finished product collecting hopper (41) and a discharging door (42). A finished product discharging port (12) located below the discharging end of the belt conveyor (21) at the lowest layer is provided on the side wall of the curing bin (1). The discharging end of the belt conveyor (21) at the lowest layer is connected to the finished product discharging port (12) through the finished product collecting hopper (41). The discharging door (42) is used to open and close the finished product discharging port (12).

8. The waste incineration fly ash particle curing system according to claim 1, 2, 3 or 4, characterized in that: The temperature regulating device (6) comprises a steam heat exchange hot air blower (61), the hot air outlet of the steam heat exchange hot air blower (61) is connected to the inner cavity of the curing bin (1) through an air outlet pipe (62), the hot air inlet of the steam heat exchange hot air blower (61) is connected to the inner cavity of the curing bin (1) through an air inlet pipe (63), and an exhaust fan (64) is provided on the air inlet pipe (63).

9. The waste incineration fly ash particle curing system according to claim 1, 2, 3 or 4, characterized in that: The humidity regulating device (7) comprises a moisturizing liquid pressure tank (71), the moisturizing liquid pressure tank (71) is connected to a spray pipe (73) via a delivery pipe (72), a regulating valve (74) is provided on the delivery pipe (72), and the spray pipe (73) is arranged in the curing chamber (1) and is provided with a plurality of atomizing nozzles (75).

10. The waste incineration fly ash particle curing system according to claim 9, characterized in that: The humidity regulating device (7) further comprises an exhaust fan (76) arranged in the curing chamber (1).

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