High efficiency circulating convection incinerator

Abstract

The application provides a high-efficiency circulating convection incinerator, aiming at solving the problems of low combustion efficiency, low heat utilization rate and incomplete treatment of high-humidity garbage of traditional incinerators. The incinerator comprises an incinerator body, a feeding hopper, a grate mechanism, an inclined plate, a rotary incinerator, a blower, a wind guide plate and other components. The lower surface of the inclined plate is provided with a plurality of staggered air guide vanes, and a vortex generator is arranged on the surface, which can significantly improve the turbulence degree and mixing effect of the airflow, optimize the distribution of hot air in the furnace body, and improve the combustion efficiency. The combination of the rotary incinerator and the blower, guided by the wind guide plate, forms an effective airflow path, ensuring uniform distribution of air and heat. Through these innovative designs, the application realizes efficient combustion and heat energy utilization of high-humidity garbage, improves the uniformity and completeness of combustion, reduces harmful gas emissions, and has significant environmental and economic benefits.

Description

Technical Field

[0001] This invention relates to the field of waste incineration equipment technology, and in particular to a high-efficiency circulating convection incinerator. Background Technology

[0002] With the acceleration of urbanization and the expansion of agricultural production, high-moisture waste (such as wet garbage and straw) has increasingly become a significant environmental problem. Traditionally, this high-moisture waste is either piled up in fields for natural decomposition or directly burned in the open. However, these methods have significant drawbacks. Open burning not only releases large amounts of harmful gases and dust, severely impacting air quality, but also poses a fire hazard. Pile-up disposal, on the other hand, easily leads to waste putrefaction and the breeding of bacteria, posing potential risks to the environment and public health.

[0003] To address these issues, existing technologies have proposed some solutions, but certain limitations remain. For example, patent CN106171848B discloses a waste incinerator that faces the following problems when processing high-moisture waste (such as wet waste, straw, etc.): 1. Low combustion efficiency: This is mainly because during the incineration process of waste with high moisture content or other waste, the evaporation of moisture absorbs a large amount of heat, reducing the overall temperature of the incinerator and thus affecting the combustion efficiency. 2. Incomplete combustion: Due to the high moisture content, the waste produces a large amount of smoke, which contains unburned particulate matter. These particulate matter are easily emitted directly into the upper air. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention aims to provide a high-efficiency circulating convection incinerator, solving the problems existing in the prior art. By incorporating inclined plates and guide vanes, the hot airflow is rationally guided and distributed, improving the uniformity of heat distribution within the incinerator. Furthermore, vortex generators are installed on the guide vanes to increase airflow turbulence, improve the mixing and transfer efficiency of the hot airflow, and enhance combustion. This optimized airflow design and heat distribution enable the incinerator to process high-moisture waste more efficiently, improving incineration efficiency. The streamlined design of the guide vanes prevents smoke containing incompletely burned particles from being directly emitted upwards when passing through the inclined plates and guide vanes; instead, it is redirected to the stepped grate position. The staggered guide vanes break the straight airflow path, allowing the particles in the smoke to fully mix with the hot airflow, increasing the contact area between the airflow and the burning waste. This process not only allows incompletely burned particles to be re-burned, improving combustion efficiency, but also reduces the direct emission of harmful smoke.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency circulating convection incinerator, comprising an incinerator body, a feed hopper on the left side of the incinerator body, multiple sets of grate mechanisms inside the incinerator body, an inclined plate at the upper end of the grate mechanism, a rotary incinerator at the bottom right side of the incinerator body, a blower at the upper end of the rotary incinerator, a wind guide plate at the lower end of the blower, a spiral conveying mechanism at the bottom of the incinerator body, and an ignition furnace at the lower end of the grate mechanism. The incinerator body supports all other components. The feed hopper is used to load garbage and other materials to be incinerated. The grate mechanism supports the garbage material; these grates can be moved or fixed, allowing air to flow from below to aid combustion. The inclined plate is tilted at a certain angle to guide the hot airflow from the lower end to the feed inlet, increasing the temperature at the upper end, allowing wet garbage to dehydrate and burn quickly, thereby promoting more efficient combustion. The rotary incinerator ensures uniform combustion and allows for better control of the combustion process and ash discharge. The blower provides an appropriate amount of air into the incinerator. The air guide vane directs the airflow from the blower to specific areas, optimizing the airflow path, improving thermal efficiency, and ensuring air reaches the necessary parts of the furnace, thereby improving combustion. The screw conveyor removes ash. The ignition furnace ignites the material inside the furnace; it acts as an auxiliary ignition during combustion, ensuring a continuous and stable combustion process.

[0008] Preferably, the grate mechanism includes a fixed grate and a movable grate. Multiple connecting rods are fixed to the lower end of the movable grate, and push rods are engaged with the lower ends of the connecting rods. A cylinder is fixedly connected to the left side of the push rod. Connecting grates are provided between each grate group. The fixed and movable grates support and maintain the position of the material to be burned. The fixed grate remains stationary, while the movable grate can move, achieved through the mechanical action of the connecting rods and push rods. This design allows the material to be agitated during combustion, exposing more fresh surface area to promote more complete combustion. The connecting rods connect the movable grate to the push rods, which are driven by the cylinders, enabling the movable grate to move back and forth, thus turning over materials such as waste, ensuring uniform combustion, and reducing the possibility of blockage and incomplete combustion within the furnace. The connecting grate supports the heat load of the upper grate mechanism and also plays a role in heat transfer and heat homogenization, contributing to temperature balance and consistency throughout the combustion process.

[0009] Preferably, the lower surface of the inclined plate is provided with multiple guide vanes, which are staggered and streamlined in design. A vortex generator is installed on the surface of each guide vane. The staggered arrangement of the guide vanes ensures uniform airflow distribution as it passes through the inclined plate, preventing localized overheating or undercooling. This staggered arrangement breaks the straight airflow path, increasing the contact area and improving heat exchange efficiency. The streamlined guide vanes reduce airflow resistance, maintaining airflow velocity and flow rate. The streamlined design also makes the airflow direction smoother, preventing sudden turbulence and vortex formation, and improving airflow controllability and stability. The vortex generators, evenly distributed on the guide vanes, generate small vortices in the airflow. By creating vortices on the guide vane surface, the vortex generators increase the turbulence of the airflow, making it more mixed and uniform. The vortex generators better mix hot and cold airflows, distributing them evenly within the incinerator body and improving combustion efficiency. The generation of vortices increases the contact area between the airflow and the incinerated material, promoting heat transfer and improving heat utilization efficiency.

[0010] Preferably, the fixed grate and the movable grate are arranged in a stepped configuration, with each pair forming a group. This structure helps to promote more efficient airflow and heat utilization. As hot gas rises and passes through different grate levels, it can better dry and preheat the material, thereby improving overall combustion efficiency.

[0011] Preferably, a scraper is provided at the bottom right side of the fixed grate, and the surface of the fixed grate is provided with through ventilation holes. The scraper is used to remove residual ash and incompletely burned material to the next grate, preventing residue accumulation from affecting combustion efficiency and furnace life.

[0012] Preferably, the screw conveyor mechanism includes a conveying pipe body, a conveying motor is fixed on the left side of the conveying pipe body, a screw blade is fixed on the output shaft of the conveying motor, and an ash discharge chamber is provided at the bottom of the conveying pipe body.

[0013] Preferably, the dust collection mechanism extends into the interior of the conveying pipe.

[0014] Preferably, the tilt angle of the inclined plate can be 30°.

[0015] Furthermore, a waste crushing device can be installed at the upper end of the feed hopper to improve combustion efficiency.

[0016] Furthermore, a pusher cylinder can be installed inside the feed hopper to assist the waste in entering the combustion furnace.

[0017] Furthermore, a flue gas treatment system can be installed at the exhaust outlet to purify the discharged exhaust gas and ensure that emissions meet environmental protection requirements.

[0018] (III) Beneficial Effects

[0019] The purpose of this invention is to provide a high-efficiency circulating convection incinerator. Through innovative designs of guide vanes, inclined plates, and the overall gas path, this invention significantly improves the combustion efficiency and heat utilization rate of the incinerator. The streamlined design of the guide vanes reduces airflow resistance and increases airflow velocity. Simultaneously, the surface vortex generator introduces small vortices, enhancing the turbulence and mixing effect of the airflow, ensuring uniform distribution of hot air within the incinerator. The optimized inclined plate angle better guides the hot airflow upwards, improving convection efficiency and ensuring uniform heat distribution within the furnace, avoiding localized overheating or undercooling. The overall gas path design includes a combination of multiple grate mechanisms, blowers, and airflow guide plates, ensuring stable and uniform airflow distribution, increasing the combustion area and efficiency. The multiple grate mechanisms enable stratified combustion of waste, reducing the generation of unburned materials, while the design of the blower and airflow guide plates ensures a continuous airflow supply and optimized airflow path, promoting moisture evaporation and accelerating the combustion process of high-humidity waste. Ultimately, this invention improves the uniformity and completeness of combustion by optimizing the hot airflow and gas path design, reducing the generation of harmful gases and unburned substances, thus enhancing environmental performance. It also increases heat utilization and improves the economic efficiency of the incinerator. Through these innovative designs, this invention achieves a highly efficient, environmentally friendly, and economical waste incineration process, representing a significant breakthrough in waste treatment technology. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the entire invention.

[0021] Figure 2 This is a cross-sectional view of the entire invention.

[0022] Figure 3 This is a schematic diagram of the grate mechanism in this invention.

[0023] Figure 4 This is a schematic diagram of the screw conveyor mechanism in this invention.

[0024] Figure 5 This is a schematic diagram of the dust collection mechanism in this invention.

[0025] Figure 6 This is a schematic diagram of the fixed grate in this invention.

[0026] Figure 7 In this invention Figure 6 Enlarged view of point A in the middle.

[0027] Figure 8 This is a schematic diagram of the inclined plate and the guide vanes in this invention.

[0028] Figure 9 This is a schematic diagram of the wind guide blade in this invention.

[0029] Figure 10This is a schematic diagram of the high-temperature airflow direction in this invention.

[0030] In the diagram: 1-Incinerator body, 2-Feed hopper, 3-Grate mechanism, 4-Inclined plate, 5-Rotary incinerator, 6-Blower, 7-Wind guide plate, 8-Screw conveyor mechanism, 9-Ignition furnace, 10-Residue collection trough, 11-Dust collection mechanism, 12-Smoke outlet, 31-Fixed grate, 32-Moving grate, 33-Connecting rod, 34-Push rod, 35-Cylinder, 36-Connecting grate, 41-Guide vane, 42-Edge generator, 81-Conveying pipe, 82-Conveying motor, 83-Screw blade, 84-Ash outlet chamber, 111-Collection hopper, 112-Conveying channel, 113-Ash outlet, 311-Scraper, 312-Ventilation opening. Detailed Implementation

[0031] In this application, unless otherwise expressly specified and limited, the technical terms used shall have the ordinary meaning understood by a person skilled in the art. Terms such as “connected,” “linked,” “fixed,” and “set” shall be interpreted broadly, referring to fixed connections, detachable connections, or integral connections; direct connections or indirect connections via an intermediate medium; mechanical connections or electrical connections. Unless otherwise expressly specified and limited, “above” or “below” a second feature may mean that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, “above,” “on top,” or “over” a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. “Below,” “under,” or “beneath” a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Relational terms such as “first,” “second,” etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms used in the description, such as “center,” “lateral,” “longitudinal,” “length,” “width,” “thickness,” “height,” “front,” “rear,” “left,” “right,” “up,” “down,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “axial,” “radial,” “circumferential,” “clockwise,” and “counterclockwise,” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0032] The following will refer to the appendices in the embodiments of the present invention. Figure 1 - Appendix Figure 8The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This invention provides a technical solution: a high-efficiency circulating convection incinerator, including an incinerator body 1, a feed hopper 2 on the left side of the incinerator body 1, multiple sets of grate mechanisms 3 inside the incinerator body 1, an inclined plate 4 at the upper end of the grate mechanism 3, a rotary incinerator 5 at the bottom right side of the incinerator body 1, a blower 6 at the upper end of the rotary incinerator 5, a wind guide plate 7 at the lower end of the blower 6, a spiral conveying mechanism 8 at the bottom of the incinerator body 1, an ignition furnace 9 at the lower end of the grate mechanism 3, a residue collection trough 10 on the right side of the rotary incinerator 5, multiple dust collection mechanisms 11 at the lower end of the grate mechanism 3, and a smoke outlet 12 at the upper end of the rotary incinerator 5.

[0034] The incinerator body 1, as the main structure of the entire waste incinerator, houses and supports all other components. The feed hopper 2, located on the left side of the incinerator body 1, is used to load waste and other materials to be incinerated. The grate mechanism 3, located inside the incinerator body 1, is a series of metal plates or other refractory materials forming a platform to support the waste material. These grates can be moved or fixed, allowing air to flow underneath to aid combustion. An inclined plate 4, located at the upper end of the grate mechanism 3, is tilted at a 30° angle to guide the hot airflow from the lower end to the feed inlet, increasing the temperature at the upper end and allowing for rapid dehydration and combustion of wet waste, thus promoting more efficient combustion. The rotary incinerator 5, located at the bottom right side of the incinerator body 1, ensures uniform combustion while providing better control over the combustion process and ash discharge. A blower 6, located at the upper end of the rotary incinerator 5, supplies the appropriate amount of air into the incinerator. Oxygen is an indispensable factor in the combustion process; the blower 6 ensures sufficient oxidant for more efficient and complete combustion. The wind guide plate 7, located at the lower end of the blower 6, guides the air blown in by the blower 6 to a specific area, optimizing the airflow path, improving thermal efficiency, and ensuring that air flows to the required parts of the furnace, thereby improving combustion. The spiral conveyor mechanism 8, located at the bottom of the incinerator body 1, is a device for conveying materials horizontally or at an angle. It typically consists of a spiral blade and a rotating shaft, used to remove ash. The ignition furnace 9, located at the lower end of the grate mechanism 3, is used to ignite the materials inside the furnace. It serves as auxiliary ignition during combustion, ensuring a continuous and stable combustion process. The residue collection trough 10, located on the right side of the rotary incinerator 5, collects the remaining residue and incompletely burned materials after combustion for further processing or waste disposal. The ash collection mechanism 11, located at the lower end of the grate mechanism 3, is an opening in the incinerator for discharging ash produced during combustion. It allows for periodic or continuous ash removal during incinerator operation, ensuring combustion efficiency. The flue gas outlet 12 is located at the upper end of the rotary incinerator 5 and is used to discharge the flue gas generated during combustion.

[0035] When blower 6 operates, the generated air is guided by air guide plate 7 and moves upwards along inclined plate 4 towards the furnace body, creating an effect of rising hot gas. This design utilizes the thermodynamic principle that hot air rises and cold air sinks, thus forming a natural thermal convection cycle within the incinerator. Temperature control optimization: By controlling the airflow of blower 6 and adjusting the angle of air guide plate 7, the temperature and airflow direction within the rotary incinerator 5 can be precisely controlled to adapt to different combustion requirements and material characteristics. This is crucial for ensuring safe and stable operating conditions and meeting environmental emission standards.

[0036] Multiple guide vanes 41 are arranged in a staggered pattern on the lower surface of the inclined plate 4. The guide vanes 41 have a streamlined design, and vortex generators 42 are installed on their surfaces. The staggered arrangement of the guide vanes 41 breaks the straight airflow path, allowing for uniform airflow distribution as it passes through the inclined plate 4, increasing the contact area and improving heat exchange efficiency. The streamlined design of the guide vanes 41, with their flow openings corresponding to the positions of the fixed grate 31 and the movable grate 32 at the lower end, reduces airflow resistance, maintains airflow speed and flow rate, and makes the airflow direction more stable, avoiding the sudden generation of turbulence and vortices, thereby improving the controllability and stability of the airflow. The vortex generators 42 are evenly distributed on the surface of the guide vanes 41. The vortex generators 42 have a hemispherical groove design, used to generate small vortices in the airflow. The vortex generator 42 increases the turbulence of the airflow by generating vortices on the surface of the guide vanes 41, making the airflow more mixed and uniform. The generation of vortices increases the contact area between the airflow and the incinerating material, promoting heat transfer and thus improving heat utilization efficiency. The vortex generator 41 can also better mix hot and cold airflows and distribute them evenly within the incinerator, improving combustion efficiency.

[0037] The combined design of the inclined plate 4, guide vanes 41, and vortex generator 42 has a significant effect on airflow optimization. This design effectively guides the hot airflow, ensuring its uniform distribution within the incinerator and preventing localized overheating or undercooling. It also increases the airflow contact area, improving heat exchange efficiency, and the streamlined design reduces airflow resistance, guaranteeing airflow speed and flow rate. The vortex generator further increases the turbulence and mixing effect of the airflow by generating small vortices, resulting in a more uniform airflow distribution within the incinerator. Furthermore, this design prevents smoke containing incompletely burned particles from being directly emitted upwards when passing through the inclined plate and guide vanes; instead, it is redirected to the stepped grate position. The staggered guide vanes break the straight airflow path, allowing the particles in the smoke to mix thoroughly with the hot airflow, increasing the contact area between the airflow and the burning waste. This process not only allows incompletely burned particles to be re-burned, improving combustion efficiency, but also reduces the direct emission of harmful smoke.

[0038] Overall, the combined design of these components significantly improves the combustion efficiency and thermal efficiency of the incinerator. By optimizing airflow paths and mixing effects, the incinerator can more effectively process high-moisture waste, ensuring uniform and thorough combustion, and reducing the emission of harmful gases, resulting in significant environmental and economic benefits.

[0039] The grate mechanism 3 includes a fixed grate 31 and a movable grate 32. Multiple connecting rods 33 are fixed to the lower end of the movable grate 32. A push rod 34 is engaged with the lower end of each connecting rod 33. A cylinder 35 is fixedly connected to the left side of the push rod 34. A connecting grate 36 is provided between each group of grate mechanisms 3. The fixed grate 31 and movable grate 32 are arranged in a stepped configuration, with two grate groups per group. A scraper 311 is provided at the bottom right side of the fixed grate 31, and through ventilation holes 312 are provided on the surface of the fixed grate 31.

[0040] Fixed grate 31 and movable grate 32 are used to support and maintain the position of the material to be burned. Fixed grate 31 is stationary, while movable grate 32 can move, achieved through the mechanical action of connecting rod 33 and push rod 34. This design allows the material to be agitated during combustion, exposing more fresh surface area to promote more complete combustion. Connecting rod 33 connects movable grate 32 to push rod 34, which is driven by cylinder 35, allowing movable grate 32 to move back and forth, thereby turning over materials such as waste, ensuring uniform combustion, and reducing the possibility of blockage and incomplete combustion in the furnace. Connecting grate 36 is located between each grate mechanism 3, used to support the heat load of the upper grate mechanism, and also plays a role in heat transfer and heat equalization, contributing to temperature uniformity and consistency throughout the combustion process. Scraper 311 located at the bottom right side of fixed grate 31 is used to remove residual ash and incompletely burned material. This self-cleaning mechanism helps maintain grate cleanliness and prevents residue accumulation from affecting combustion efficiency and furnace life. Ventilation holes 312: The ventilation holes 312 on the surface of the fixed grate 31 allow air to pass under the grate, providing the necessary oxygen for combustion, while also helping to control the temperature above the grate, preventing overheating and localized combustion of the material. Stepped arrangement: The fixed grate 31 and the movable grate 32 are arranged in a stepped configuration in pairs. This structure helps promote more efficient airflow and heat utilization. As hot air rises and passes through different grate levels, it can better dry and preheat the material, thereby improving overall combustion efficiency.

[0041] The combined use of movable and fixed grates not only improves combustion efficiency but also reduces the frequency of manual intervention. The cylinder-controlled pusher-movable grate system provides reliable mechanical agitation, ensuring continuous and uniform combustion, while the stepped structure and vent design further optimize thermal efficiency and combustion completeness. The self-cleaning function of the scraper and the air supply / temperature control function of the vents enhance the operational stability and durability of the equipment.

[0042] The screw conveyor mechanism 8 includes a conveying pipe body 81. A conveying motor 82 is fixed to the left side of the conveying pipe body 81, and a spiral blade 83 is fixed to the output shaft of the conveying motor 82. An ash discharge chamber 84 is provided at the bottom of the conveying pipe body 81. A dust collection mechanism 11 extends through the interior of the conveying pipe body 81. The conveying pipe body 81 is a long cylindrical structure made of high-temperature resistant material, used to contain and guide the conveying path of materials. The conveying motor 82, fixed to the left side of the conveying pipe body 81, is the power source of the screw conveyor mechanism. According to design requirements, the conveying motor 82 can operate in either the forward or reverse direction, controlling the rotation direction of the spiral blade 83, and discharging ash through its spiral shape. Ash discharge chamber 84: An ash discharge chamber 84 is provided at the bottom of the conveying pipe body 81, which is a chamber for discharging ash.

[0043] The ash collection mechanism 11 includes a collection hopper 111 located at the lower end of the grate mechanism 3. A conveying channel 112 is fixed to the lower end of the collection hopper 111, and an ash outlet 113 is provided at the lower end of the conveying channel 112, extending into the interior of the conveying pipe body 81. The collection hopper 111, located at the lower end of the grate mechanism 3, is a container for capturing and accumulating ash generated during combustion. The opening typically faces upwards to allow ash and dust to fall naturally during combustion. The conveying channel 112, a connecting structure between the collection hopper 111 and the ash outlet 113, is fixed to the lower end of the collection hopper 111. The ash outlet 113, located at the lower end of the conveying channel 112, is an opening for discharging accumulated ash. The ash outlet 113 may further be designed with a valve so that the operator can control the timing and amount of ash discharge. The ash outlet is used to achieve automatic ash conveying and discharge.

[0044] The waste incinerator of the present invention achieves efficient combustion and treatment of waste and other garbage through the following steps:

[0045] 1. Feeding: High-moisture waste enters the incinerator through the feed hopper 2 located on the left side of the incinerator body.

[0046] 2. Material Movement and Initial Combustion: After the waste entering the incinerator reaches the grate mechanism 3, the push rod 34 drives the movable grate 32 to move laterally back and forth. When the movable grate 32 extends, it pushes the waste on the upper surface of the fixed grate onto the upper surface of the other movable grate 32 below. When the movable grate 32 retracts, the waste on the upper surface of the movable grate 32 is scraped off by the upper fixed grate 31. This process is repeated, and the waste is gradually dispersed and transferred diagonally downwards along the grate. During this process, the flame in the bottom ignition furnace continuously ignites the waste on the left grate, causing it to initially burn.

[0047] 3. Complete combustion of smoke particles: During the combustion process, the hot airflow and smoke rise upwards and encounter the inclined plate 4 located at the upper end of the grate mechanism 3. The lower surface of the inclined plate 4 is provided with multiple staggered guide vanes 41. These vanes are streamlined to reduce airflow resistance, and vortex generators 42 are provided on the surface of the guide vanes to generate small vortices in the airflow.

[0048] The streamlined design of the guide vanes and the function of the vortex generator enable the hot air and smoke to be evenly distributed when passing through the inclined plate, increasing the turbulence of the airflow and improving the mixing efficiency of the airflow.

[0049] Smoke containing incompletely burned particles is not directly discharged into the air when passing through the inclined plates and guide vanes. Instead, it is redirected to the stepped grate position so that these particles can participate in the combustion process again.

[0050] 4. Stepped Combustion and Heat Utilization: Waste burns in stages downwards within the incinerator, ensuring complete combustion throughout the process. The rotary incinerator located at the bottom right not only burns the waste thoroughly, reducing residue, but also uses the heat generated to drive hot air towards the waste at the far left where combustion begins, improving heating efficiency, thanks to the design of the blower and inclined plates. The combination of the blower and air guide plates provides the appropriate amount of air for combustion and ensures effective flow of hot air, thereby enhancing combustion efficiency.

[0051] 5. Ash and Residue Treatment: Ash generated during combustion falls through the ventilation holes 312 of the grate mechanism 3 and is collected in the dust collection mechanism 11. The dust collection mechanism 11 discharges the ash through the conveying channel and the ash outlet, which extends into the conveying pipe of the screw conveyor mechanism to achieve continuous ash treatment.

[0052] 6. Exhaust gas emission: A flue is provided on the upper right side of the incinerator body to discharge the flue gas generated during combustion.

[0053] Through the above design and operation process, the waste incinerator of the present invention can efficiently process high-humidity waste, make full use of the heat generated by combustion, improve combustion efficiency, and achieve environmentally friendly treatment of ash and exhaust gas.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency circulating convection incinerator, comprising an incinerator body (1), wherein a feed hopper (2) is provided on the left side of the incinerator body (1), characterized in that, The incinerator body (1) is equipped with multiple sets of grate mechanisms (3) inside. An inclined plate (4) is provided at the upper end of the grate mechanism (3). A rotary incinerator (5) is provided at the bottom right side of the incinerator body (1). A blower (6) is provided at the upper end of the rotary incinerator (5). A wind guide plate (7) is provided at the lower end of the blower (6). A spiral conveying mechanism (8) is provided at the bottom of the incinerator body (1). An ignition furnace (9) is provided at the lower end of the grate mechanism (3). The grate mechanism (3) includes a fixed grate (31) and a movable grate (32). The lower end of the movable grate (32) is fixed with multiple connecting rods (33). The lower end of the connecting rod (33) is engaged with a push rod (34). The left side of the push rod (34) is fixedly connected with a cylinder (35). A connecting grate (36) is provided between each group of the grate mechanisms (3). The lower surface of the inclined plate (4) is provided with a plurality of wind guide blades (41), the wind guide blades (41) are staggered, the wind guide blades (41) are streamlined, and the surface of the wind guide blades (41) is provided with a vortex generator (42). The fixed grate (31) and the movable grate (32) are arranged in a stepped manner in pairs; The vortex generator (42) is a semi-circular groove type, and the vortex generator (42) is evenly distributed on the lower surface of the guide vane (41).

2. The high-efficiency circulating convection incinerator according to claim 1, characterized in that, A scraper (311) is provided on the bottom right side of the fixed grate (31), and a through ventilation hole (312) is provided on the surface of the fixed grate (31).

3. The high-efficiency circulating convection incinerator according to claim 1, characterized in that, A residue collection trough (10) is provided on the right side of the rotary incinerator (5).

4. The high-efficiency circulating convection incinerator according to claim 1, characterized in that, The lower end of the grate mechanism (3) is provided with multiple dust collection mechanisms (11).

5. The high-efficiency circulating convection incinerator according to claim 4, characterized in that, The dust collection mechanism (11) includes a collection hopper (111), the lower end of which is fixed with a conveying channel (112), and the lower end of the conveying channel (112) is provided with a dust outlet (113).

6. The high-efficiency circulating convection incinerator according to claim 1, characterized in that, The upper right side of the incinerator body (1) is provided with a smoke outlet (12).

7. The high-efficiency circulating convection incinerator according to claim 1, characterized in that, The spiral conveying mechanism (8) includes a conveying pipe (81), a conveying motor (82) is fixed on the left side of the conveying pipe (81), a spiral blade (83) is fixed on the output shaft of the conveying motor (82), and an ash discharge chamber (84) is provided at the bottom of the conveying pipe (81).

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