Novel forward pushing type modularized R-shaped fire grate segment

Abstract

The invention discloses a novel forward pushing type modularized R-shaped fire grate segment, and belongs to the technical field of garbage incinerator fire grates. Comprising a plurality of first R-shaped fire grate segments installed in a drying section fire grate structure and a combustion section fire grate structure in the garbage incinerator and a plurality of second R-shaped fire grate segments installed in a burnout section fire grate structure in the garbage incinerator. When the novel forward-pushing type modularized R-shaped fire grate is used, the first R-shaped fire grate segments and the second R-shaped fire grate segments are selected according to different treatment processes of a drying section fire grate structure, a combustion section fire grate structure and a burnout section fire grate structure which are mounted in a garbage incinerator, and hot air can flow out through different paths due to the design of multiple ventilation ducts; and the flow speed of hot air is increased, so that the heat dissipation efficiency is improved, the fire grate structure of each section can be maintained at a proper working temperature, and the influence on the performance and the service life of equipment due to over-high temperature is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of garbage incinerator grates, and in particular is a novel forward-pushing modular R-shaped grate piece. Background Art

[0002] The push-type grate is a grate structure widely used in municipal waste incineration systems. It is assembled into a stepped, inclined structure using grate plates. A hydraulic drive system periodically pushes the plates back and forth, achieving continuous advancement and uniform combustion of the waste within the incinerator. This type of grate structure offers advantages such as strong adaptability, a high degree of modularity, and excellent operational stability.

[0003] At present, the grate slices adopt a standardized module design and are assembled into rows through connecting parts such as pins and pull rods. Combined with the primary air provided by the bottom wind chamber, the garbage can be pushed forward step by step, fully burned and the grate is cooled and protected.

[0004] As an important component that directly contacts the garbage and withstands high temperature, thrust and air volume exchange, the structural design of the grate has a decisive influence on the operating stability, combustion efficiency and heat load bearing capacity of the garbage incineration system.

[0005] The existing forward-push modular R-type grate has low heat dissipation efficiency when in use and may not be able to effectively control the temperature of high-temperature areas such as the drying section and combustion section, which can easily cause the grate structure temperature to be too high, thereby affecting equipment performance and shortening service life. Summary of the Invention

[0006] In view of the above problems, the present invention discloses a novel forward-pushing modular R-type grate.

[0007] The technical solution of the present invention is: a novel forward-pushing modular R-shaped grate, comprising a plurality of first R-shaped grate pieces installed in the drying section grate structure and the combustion section grate structure of the waste incinerator, and a plurality of second R-shaped grate pieces installed in the burning section grate structure of the waste incinerator;

[0008] The first R-shaped grate slices include a plurality of first fixed grate slices that are fixedly installed, and a plurality of first sliding grate slices that are rotatably connected between two adjacent first fixed grate slices; the second R-shaped grate slices include a plurality of second fixed grate slices that are fixedly installed, and a plurality of second sliding grate slices that are slidably connected between two adjacent second fixed grate slices;

[0009] One side of the bottom end of the first fixed grate piece is provided with a first clamping groove which opens downward and is mounted on the fixed beam of the grate, and the other side of the bottom end of the first fixed grate piece is provided with a first through groove which opens downward and is used for hot air circulation, and a plurality of first heat dissipation ribs parallel to each other are provided in the first through groove along the length direction, a plurality of horizontal ventilation ducts are provided on the side wall of the first through groove and on the side opposite to the first clamping groove, and a plurality of first vertical ventilation ducts are provided on the upper end of the first through groove; the structure of the first sliding grate piece is the same as that of the first fixed grate piece, and the first clamping groove corresponding to one side of the first sliding grate piece is mounted on the moving beam of the grate, and the other side is placed on the upper end of the adjacent first fixed grate piece;

[0010] One side of the bottom end of the second fixed grate piece is provided with a second slot that opens downward and is installed on the grate fixed beam, and the other side of the bottom end of the second fixed grate piece is provided with a second through slot that opens downward and is used for hot air circulation, and a plurality of second heat dissipation ribs parallel to each other are provided in the second through slot along the length direction, and a plurality of arc-shaped ventilation ducts connected with the second through slot are provided at the bottom end of the second fixed grate piece, and a second vertical ventilation duct that is connected to the outside is provided at the bottom end of each of the arc-shaped ventilation ducts; the structure of the second sliding grate piece is the same as that of the second fixed grate piece, and the second slot corresponding to one side of the second sliding grate piece is installed on the grate moving beam, and the other side is placed on the upper end of the adjacent second fixed grate piece.

[0011] Furthermore, the first heat dissipation rib plate includes a first supporting inner plate, a first heat dissipation outer plate provided on the front and rear sides of the first supporting inner plate and having honeycomb-shaped side walls, and each honeycomb of the first heat dissipation outer plate is filled with a first porous metal foam layer.

[0012] Description: The first supporting inner plate is used as a substrate for support, and a first heat dissipation outer plate in a honeycomb shape is arranged on the front and rear sides thereof. When hot air flows through the first through slot, it will come into contact with the honeycomb structure on each first heat dissipation outer plate, greatly increasing the contact area between the hot air and the first heat dissipation outer plate and improving the heat dissipation effect. At the same time, the first porous metal foam layer filled inside each honeycomb has the characteristics of high porosity and large specific surface area, which further increases the heat dissipation area. Moreover, the porous structure is conducive to air circulation, so that heat can be more effectively dissipated to the surrounding environment through convection and radiation, thereby enhancing the heat dissipation performance.

[0013] Furthermore, the second heat dissipation rib plate includes a second supporting inner plate, a second heat dissipation outer plate provided on the front and rear sides of the second supporting inner plate and having honeycomb-shaped side walls, and each honeycomb of the second heat dissipation outer plate is filled with a second porous metal foam layer.

[0014] Description: The second supporting inner plate is used as a substrate for support, and second heat dissipation outer plates in a honeycomb shape are arranged on the front and rear sides thereof. When hot air flows through the second through slots, it will come into contact with the honeycomb structures on each second heat dissipation outer plate, greatly increasing the contact area between the hot air and the second heat dissipation outer plate and improving the heat dissipation effect. At the same time, the second porous metal foam layer filled inside each honeycomb has the characteristics of high porosity and large specific surface area, which further increases the heat dissipation area. Moreover, the porous structure is conducive to air circulation, so that heat can be more effectively dissipated to the surrounding environment through convection and radiation, thereby enhancing the heat dissipation performance.

[0015] Furthermore, each honeycomb side wall of the first heat dissipation outer plate and the periphery of the first porous metal foam layer are sprayed with a first fluorine silicon nanoparticle coating, and each honeycomb side wall of the second heat dissipation outer plate and the periphery of the second porous metal foam layer are sprayed with a second fluorine silicon nanoparticle coating.

[0016] Description: Spraying silicon carbide nanoparticles on the wall of the honeycomb structure can increase the roughness of the wall of the honeycomb structure, increase the turbulence intensity of the airflow, and further improve the radiation heat dissipation efficiency.

[0017] Furthermore, the horizontal ventilation duct is a hole-like structure and has a first tapered section and a first gradually expanding section at its left and right ends respectively. A first spoiler core is provided in the horizontal ventilation duct. The first spoiler core includes a first horizontal core placed in the horizontal ventilation duct along the length direction, and several first partition ribs uniformly distributed in a divergent manner on the outer wall of the first horizontal core. Several first ventilation flow channels are formed between each of the first partition ribs, the outer wall of the first horizontal core and the inner wall of the horizontal ventilation duct.

[0018] Description: By setting the horizontal ventilation duct as a whole to have large openings on the left and right sides and a small opening in the middle, and coordinating with the setting of the first spoiler core, hot air can simultaneously flow through several first ventilation ducts with large openings on both sides and small openings in the middle. The flow state of the airflow in each first ventilation duct changes, generating more turbulence and disturbance. This airflow disturbance can destroy the boundary layer near the heat dissipation surface, making it easier for the hot air to be carried away. At the same time, it can also allow the cold air to more fully contact the heat dissipation surface, further promoting heat transfer and enhancing the heat dissipation effect.

[0019] Furthermore, a first horizontal guide strip is provided on the outer wall of the first horizontal core between two adjacent first dividing ribs.

[0020] Note: In order to further leverage the advantages of a structure with large openings on both sides and a small opening in the middle, a first horizontal guide strip is provided between two adjacent first partition ribs and at a horizontal position corresponding to each first ventilation channel to more precisely guide the airflow so that the airflow flows in a specific direction within the first ventilation channel, thereby avoiding airflow turbulence and backflow, allowing hot air to be discharged more smoothly, further improving ventilation efficiency, and enhancing heat dissipation effects.

[0021] Furthermore, the second vertical ventilation duct is a hole-shaped structure and has a second tapered section and a second gradually expanding section at its upper and lower ends respectively. A second spoiler core is provided in the second vertical ventilation duct. The second spoiler core includes a second horizontal core placed in the second vertical ventilation duct along the height direction, and several second partition ribs uniformly distributed in a divergent manner on the outer wall of the second horizontal core. Several second ventilation ducts are formed between each of the second partition ribs, the outer wall of the second horizontal core and the inner wall of the second vertical ventilation duct.

[0022] Description: The second vertical ventilation duct is set as a whole to have a structure with large openings on the upper and lower sides and a small opening in the middle, and combined with the setting of the second spoiler core, hot air can simultaneously flow through several second ventilation ducts with large openings on the upper and lower sides and small openings in the middle. The flow state of the airflow in each second ventilation duct changes, generating more turbulence and disturbance. This airflow disturbance can destroy the boundary layer near the heat dissipation surface, making it easier for the hot air to be carried away. At the same time, it can also allow the cold air to more fully contact the heat dissipation surface, further promoting heat transfer and enhancing the heat dissipation effect.

[0023] Furthermore, a second horizontal guide bar is provided on the outer wall of the second horizontal core between two adjacent second dividing ribs.

[0024] Note: In order to further leverage the advantages of a structure with large openings on both sides and a small opening in the middle, a second horizontal guide strip is provided between two adjacent second partition ribs and in each second ventilation channel to more precisely guide the airflow so that the airflow flows in a specific direction in the second ventilation channel, thereby avoiding airflow turbulence and backflow, allowing hot air to be discharged more smoothly, further improving ventilation efficiency, and enhancing heat dissipation effects.

[0025] Furthermore, a first arc-shaped notch is provided on the upper end of the first fixed grate plate and the first sliding grate plate and on the side corresponding to the first slot, and a plurality of first reinforcing ribs parallel to each other are provided at the first arc-shaped notch; a second arc-shaped notch is provided on the upper end of the second fixed grate plate and the second sliding grate plate and on the side corresponding to the second slot, and a plurality of second reinforcing ribs parallel to each other are provided at the second arc-shaped notch.

[0026] Description: Providing a first arc-shaped notch on the first fixed grate piece and the first sliding grate piece can reduce the weight of a single first fixed grate piece and the first sliding grate piece. At the same time, providing a first reinforcing rib at the first arc-shaped notch can reduce the material usage of a single grate piece and save costs while ensuring the mechanical strength of a single grate piece. The purpose of providing a second arc-shaped notch and a second reinforcing rib on the second fixed grate piece and the second sliding grate piece is the same.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) When the new forward-push modular R-type grate sheet of the present invention is used, the first R-type grate sheet and the second R-type grate sheet are selected according to the different treatment processes of the drying section grate structure, the combustion section grate structure and the burnout section grate structure installed in the waste incinerator. Among them, since the working temperature of the drying section grate structure and the combustion section grate structure is relatively high, in order to improve the heat dissipation effect, the first R-type grate sheet is used. When the grate sheet is used, part of the hot air can flow out from each horizontal ventilation duct, and the remaining hot air can flow out from each first vertical ventilation duct at its upper end, thereby improving the flow rate of the hot air and the heat dissipation effect; the second R-type grate sheet is used in the burnout section grate structure. When the grate sheet is used, the hot air can flow out from each arc ventilation duct and the second vertical ventilation duct at its lower end, compared with the first R-type grate sheet; the above-mentioned multiple ventilation duct designs enable the hot air to flow out through different paths, increase the flow rate of the hot air, thereby improving the heat dissipation efficiency, and help maintain the grate structure of each section at a suitable working temperature, preventing the equipment performance and service life from being affected by excessive temperature;

[0029] (2) When the first R-type grate sheet and the second R-type grate sheet are in use, the heat dissipation outer plate at the bottom thereof is set to a honeycomb structure, which greatly increases the contact area between the hot air and the heat dissipation outer plate and improves the heat dissipation effect. At the same time, the porous metal foam layer filled inside each honeycomb has the characteristics of high porosity and large specific surface area, which further increases the heat dissipation area, and the porous structure is conducive to air circulation; spraying silicon carbide nanoparticles on the wall of the honeycomb structure can increase the roughness of the wall of the honeycomb structure, increase the turbulence intensity of the airflow, and further improve the radiation heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 2. It is a schematic diagram of the overall installation structure of the first R-type grate sheet and the second R-type grate sheet of the present invention;

[0031] Figure 2 is a perspective view of a first fixed grate sheet of the present invention;

[0032] Figure 3 is a side view of a first fixed grate plate of the present invention;

[0033] Figure 4 is a perspective view of a first sliding grate of the present invention;

[0034] Figure 5 is a side view of a first sliding grate of the present invention;

[0035] Figure 6 is a perspective view of the second fixed grate piece of the present invention;

[0036] Figure 7 is a side view of the second fixed grate plate of the present invention;

[0037] Figure 8 is a perspective view of a second sliding grate of the present invention;

[0038] Figure 9 is a side view of a second sliding grate of the present invention;

[0039] Figure 10 is a perspective view of the first heat dissipation rib of the present invention;

[0040] Figure 11 is a perspective view of the second heat dissipation rib of the present invention;

[0041] Figure 12 This is a front view of the installation of the first spoiler inner core of the present invention in the horizontal ventilation duct;

[0042] Figure 13 This is a side view of the installation of the first spoiler core of the present invention in a horizontal ventilation duct;

[0043] Figure 14 This is a front view of the installation of the second spoiler inner core of the present invention in the second vertical ventilation duct;

[0044] Figure 15 3. It is a top view of the installation of the second spoiler core of the present invention in the second vertical ventilation duct.

[0045] Among them, 1-first R-type grate, 10-drying section grate structure, 11-combustion section grate structure, 12-burning section grate structure, 13-first fixed grate, 130-first slot, 131-first through slot, 132-first heat dissipation rib, 133-horizontal ventilation duct, 134-first vertical ventilation duct, 135-first support inner plate, 136-first heat dissipation outer plate, 137-first porous metal foam layer, 138-first fluorine silicon nanoparticle coating, 14-first sliding grate, 15-first spoiler inner core, 150-first tapered section, 151-first gradually expanding section, 152-first horizontal core, 153-first partition rib, 154-first ventilation channel, 155-first horizontal guide bar, 1 6-first arc-shaped notch, 160-first reinforcing rib, 2-second R-type grate plate, 20-second fixed grate plate, 200-second slot, 201-second through slot, 202-second heat dissipation rib, 203-arc-shaped ventilation duct, 204-second support inner plate, 205-second heat dissipation outer plate, 206-second porous metal foam layer, 207-second fluorine silicon nanoparticle coating, 21-second sliding grate plate, 22-second vertical ventilation duct, 23-second spoiler inner core, 230-second tapered section, 231-second gradually expanding section, 232-second horizontal core, 233-second partition rib, 234-second ventilation duct, 235-second horizontal guide bar, 24-second arc-shaped notch, 240-second reinforcing rib. DETAILED DESCRIPTION

[0046] In order to further understand the content of the present invention, the present invention is described in detail below through examples.

[0047] Example 1: Figure 1 As shown, a novel forward-pushing modular R-shaped grate slice comprises a plurality of first R-shaped grate slices 1 installed in a drying section grate structure 10 and a combustion section grate structure 11 in a waste incinerator, and a plurality of second R-shaped grate slices 2 installed in a burning section grate structure 12 in a waste incinerator;

[0048] The first R-shaped grate plate 1 includes a plurality of first fixed grate plates 13 that are fixedly installed, and a plurality of first sliding grate plates 14 that are rotatably connected between two adjacent first fixed grate plates 13; the second R-shaped grate plate 2 includes a plurality of second fixed grate plates 20 that are fixedly installed, and a plurality of second sliding grate plates 21 that are slidably connected between two adjacent second fixed grate plates 20;

[0049] like Figure 2 、 3As shown in , 4 and 5, one side of the bottom end of the first fixed grate piece 13 is provided with a first clamping groove 130 which opens downward and is mounted on the grate fixed beam, and the other side of the bottom end of the first fixed grate piece 13 is provided with a first through groove 131 which opens downward and is used for hot air circulation, and three first heat dissipation ribs 132 are provided in parallel with each other along the length direction in the first through groove 131, two horizontal ventilation channels 133 are provided on the side wall of the first through groove 131 and on the side opposite to the first clamping groove 130, and two first vertical ventilation channels 134 are provided on the upper end of the first through groove 131; the structure of the first sliding grate piece 14 is the same as that of the first fixed grate piece 13, and the first clamping groove 130 corresponding to one side of the first sliding grate piece 14 is mounted on the grate moving beam, and the other side is placed on the upper end of the adjacent first fixed grate piece 13;

[0050] like Figure 10 As shown, the first heat dissipation rib 132 includes a first support inner plate 135, and first heat dissipation outer plates 136 with honeycomb-shaped sidewalls provided on the front and rear sides of the first support inner plate 135. Each honeycomb of the first heat dissipation outer plate 136 is filled with a first porous metal foam layer 137. The first support inner plate 135 serves as a substrate for support, and the honeycomb-shaped first heat dissipation outer plates 136 are provided on the front and rear sides. When hot air flows through the first through slots 131, it comes into contact with the honeycomb structures on each of the first heat dissipation outer plates 136, greatly increasing the contact area between the hot air and the first heat dissipation outer plates 136 and improving the heat dissipation effect. At the same time, the first porous metal foam layer 137 filled in each honeycomb has the characteristics of high porosity and large specific surface area, further increasing the heat dissipation area. The porous structure is conducive to air circulation, so that heat can be more effectively dissipated to the surrounding environment through convection and radiation, thereby enhancing the heat dissipation performance. The first porous metal foam layer 137 adopts existing technology, for example, alumina-based porous ceramic foam can be used.

[0051] like Figure 6 、 7 As shown in , 8 and 9, one side of the bottom end of the second fixed grate piece 20 is provided with a second slot 200 which opens downward and is mounted on the grate fixed beam, and the other side of the bottom end of the second fixed grate piece 20 is provided with a second through slot 201 which opens downward and is used for hot air circulation, and three second heat dissipation ribs 202 are provided in parallel with each other along the length direction in the second through slot 201, and two arc-shaped ventilation ducts 203 which are connected with the second through slot 201 are provided at the bottom end of the second fixed grate piece 20, and a second vertical ventilation duct 22 which is connected with the outside is provided at the bottom end of each arc-shaped ventilation duct 203; the structure of the second sliding grate piece 21 is the same as that of the second fixed grate piece 20, and the second slot 200 corresponding to one side of the second sliding grate piece 21 is mounted on the grate moving beam, and the other side is placed on the upper end of the adjacent second fixed grate piece 20;

[0052] like Figure 11 As shown, the second heat dissipation rib 202 includes a second supporting inner plate 204, a second heat dissipation outer plate 205 provided on the front and rear sides of the second supporting inner plate 204 and having a honeycomb-shaped side wall, each honeycomb of the second heat dissipation outer plate 205 is filled with a second porous metal foam layer 206, which is supported by the second supporting inner plate 204 as a substrate, and a honeycomb-shaped second heat dissipation outer plate 205 is provided on the front and rear sides thereof. When hot air flows through the second passing groove 201, it will contact the honeycomb structure on each second heat dissipation outer plate 205, greatly increasing the contact area between the hot air and the second heat dissipation outer plate 205, thereby improving the heat dissipation effect. At the same time, the second porous metal foam layer 206 filled in each honeycomb has the characteristics of high porosity and large specific surface area, which further increases the heat dissipation area, and the porous structure is conducive to air circulation, so that heat can be more effectively dissipated to the surrounding environment through convection and radiation, thereby enhancing the heat dissipation performance. Among them, the second porous metal foam layer 206 adopts existing technology, for example, alumina-based porous ceramic foam can be used.

[0053] Example 2: This example differs from Example 1 in that:

[0054] like Figure 10 As shown, each honeycomb side wall of the first heat dissipation outer plate 136 and the periphery of the first porous metal foam layer 137 are sprayed with a first fluorine silicon nanoparticle coating 138, and each honeycomb side wall of the second heat dissipation outer plate 205 and the periphery of the second porous metal foam layer 206 are sprayed with a second fluorine silicon nanoparticle coating 207. Spraying silicon carbide nanoparticles on the wall of the honeycomb structure can increase the roughness of the wall of the honeycomb structure, increase the turbulence intensity of the airflow, and further improve the radiation heat dissipation efficiency. The fluorine silicon nanoparticles on the first fluorine silicon nanoparticle coating 138 and the second fluorine silicon nanoparticle coating 207 adopt existing technology, and the particle size thereof is 50 to 100 nm.

[0055] like Figure 2 、 4As shown, a first arc-shaped notch 16 is provided at the upper end of the first fixed grate plate 13 and the first sliding grate plate 14 and corresponding to the side of the first slot 130, and two first reinforcing ribs 160 parallel to each other are provided at the first arc-shaped notch 16, and a second arc-shaped notch 24 is provided at the upper end of the second fixed grate plate 20 and the second sliding grate plate 21 and corresponding to the side of the second slot 200, and two second reinforcing ribs 240 parallel to each other are provided at the second arc-shaped notch 24. The first arc-shaped notch 16 is provided on the first fixed grate plate 13 and the first sliding grate plate 14 to reduce the weight of a single first fixed grate plate 13 and the first sliding grate plate 14. At the same time, the first reinforcing rib 160 is provided at the first arc-shaped notch 16, which can reduce the material consumption of a single grate plate and save costs while ensuring the mechanical strength of a single grate plate. The purpose of providing the second arc-shaped notch 24 and the second reinforcing rib 240 on the second fixed grate plate 20 and the second sliding grate plate 21 is the same.

[0056] Example 3: This example differs from Example 2 in that:

[0057] like Figure 12 、 13 As shown, the horizontal ventilation duct 133 is a hole-shaped structure and a first tapered section 150 and a first gradually expanding section 151 are respectively provided at its left and right ends. A first spoiler core 15 is provided in the horizontal ventilation duct 133. The first spoiler core 15 includes a first horizontal core 152 placed in the horizontal ventilation duct 133 along the length direction, and four first partition ribs 153 uniformly distributed on the outer wall of the first horizontal core 152 in a divergent shape. Four first ventilation flow channels 154 are formed between each first partition rib 153, the outer wall of the first horizontal core 152 and the inner wall of the horizontal ventilation duct 133. A first horizontal guide strip 155 is provided on the outer wall of the first horizontal core 152 between two adjacent first partition ribs 153. The horizontal ventilation duct 133 is set as a whole to have a structure with large openings on the left and right sides and a small opening in the middle. In combination with the setting of the first spoiler core 15, hot air can flow through the four ducts at the same time. The first ventilation channels 154 with large openings on both sides and a small opening in the middle, the flow state of the airflow in each first ventilation channel 154 changes, generating more turbulence and disturbance. This airflow disturbance can destroy the boundary layer near the heat dissipation surface, making it easier for hot air to be carried away, while also allowing cold air to more fully contact the heat dissipation surface, further promoting heat transfer and enhancing the heat dissipation effect. In order to further give play to the advantages of the structure with large openings on both sides and a small opening in the middle, a first horizontal guide bar 155 is provided between two adjacent first partition ribs 153 and at a horizontal position corresponding to each first ventilation channel 154 to guide the airflow more precisely, so that the airflow flows in a specific direction in the first ventilation channel 154, avoiding airflow turbulence and backflow, allowing hot air to be discharged more smoothly, further improving ventilation efficiency, and enhancing heat dissipation effect;

[0058] like Figure 14 、 15 As shown, the second vertical ventilation duct 22 is a hole-shaped structure and a second tapered section 230 and a second gradually expanding section 231 are respectively provided at its upper and lower ends. A second spoiler core 23 is provided in the second vertical ventilation duct 22. The second spoiler core 23 includes a second horizontal core 232 placed in the second vertical ventilation duct 22 along the height direction, and four second partition ribs 233 uniformly distributed on the outer wall of the second horizontal core 232 in a divergent shape. Four second ventilation flow channels 234 are formed between each second partition rib 233, the outer wall of the second horizontal core 232 and the inner wall of the second vertical ventilation duct 22. A second horizontal guide strip 235 is provided on the outer wall of the second horizontal core 232 between two adjacent second partition ribs 233. The second vertical ventilation duct 22 is set as a whole to have a structure with large openings on the upper and lower sides and a small opening in the middle. In combination with the setting of the second spoiler core 23, hot air can be simultaneously Flowing through the four second ventilation channels 234 with large openings on the upper and lower sides and small openings in the middle, the flow state of the airflow in each second ventilation channel 234 changes, generating more turbulence and disturbance. This airflow disturbance can destroy the boundary layer near the heat dissipation surface, making it easier for the hot air to be carried away, while also allowing the cold air to more fully contact the heat dissipation surface, further promoting heat transfer and enhancing the heat dissipation effect. In order to further give play to the advantages of the structure with large openings on both sides and small openings in the middle, a second horizontal guide strip 235 is provided between two adjacent second partition ribs 233 and in each second ventilation channel 234 to guide the airflow more precisely, so that the airflow flows in a specific direction in the second ventilation channel 234, avoiding airflow turbulence and backflow, allowing the hot air to be discharged more smoothly, further improving the ventilation efficiency, and enhancing the heat dissipation effect.

[0059] In actual application, the garbage to be incinerated enters the input end of the garbage incinerator, and is first dried by the drying section grate structure 10 to remove most of the moisture, and then fully burned by the combustion section grate structure 11. After the garbage to be incinerated is burned, garbage ash is formed, and the garbage ash is finally discharged from the output end of the garbage incinerator by the combustion section grate structure 12.

[0060] When the drying process is carried out in the drying section grate structure 10 and the full combustion is carried out in the combustion section grate structure 11, there is a prior art blowing mechanism under the drying section grate structure 10 and the combustion section grate structure 11, which drives the hot air from bottom to top through each first fixed grate piece 13 and each first sliding grate piece 14 on the drying section grate structure 10 and the combustion section grate structure 11. When the hot air flows through the first fixed grate piece 13 and the first sliding grate piece 14, it first passes through the first through groove 131 at the bottom end thereof and contacts the honeycomb structure on each first heat dissipation outer plate 136. Due to the high porosity and large specific surface area of the first porous metal foam layer 137 filled in each honeycomb, part of the heat can be dissipated more effectively. The hot air then passes through the side wall of the first slot 131 and enters the horizontal ventilation channel 133. At this time, part of the hot air can simultaneously flow through several first ventilation channels 154 with large openings on both sides and a small opening in the middle. The flow state of the airflow in each first ventilation channel 154 changes, generating more turbulence and disturbance, making it easier for the hot air to be taken away, while also allowing the cold air to more fully contact the heat dissipation surface. A first horizontal guide bar 155 is provided between two adjacent first partition ribs 153 and at a horizontal position corresponding to each first ventilation channel 154 to guide the airflow more accurately and make the airflow flow in a specific direction in the first ventilation channel 154. The remaining hot air flows out from each first vertical ventilation channel 134 to accelerate heat dissipation.

[0061] When the garbage ash is discharged from the output end of the garbage incinerator through the combustion section grate structure 12, the air passes through the second fixed grate pieces 20 and the second sliding grate pieces 21 on the combustion section grate structure 12 from bottom to top, first, through the second through grooves 201 at the bottom thereof, and contacts the honeycomb structure on the second heat dissipation ribs 202. The high porosity and large specific surface area of the second porous metal foam layer 206 filled in each honeycomb enable part of the heat to be dissipated more effectively. Then, the hot air enters the arc-shaped ventilation duct 203 from the side wall of the second through groove 201 and passes through. The hot air flows out through the second vertical ventilation duct 22. At this time, the hot air can simultaneously flow through several second ventilation ducts 234 with large openings on the upper and lower sides and small openings in the middle. The flow state of the airflow in each second ventilation duct 234 changes, generating more turbulence and disturbance, making it easier for the hot air to be taken away, while also allowing the cold air to more fully contact the heat dissipation surface. A second horizontal guide strip 235 is provided between two adjacent second partition ribs 233 and corresponding to each second ventilation duct 234 to guide the airflow more accurately and make the airflow flow along a specific direction in the second ventilation duct 234.

Claims

1. A new type of push-forward modular R-type grate, characterized by: The invention comprises a plurality of first R-shaped grate plates (1) installed in a drying section grate structure (10) and a combustion section grate structure (11) in a waste incinerator, and a plurality of second R-shaped grate plates (2) installed in a burning section grate structure (12) in the waste incinerator; The first R-type grate slice (1) comprises a plurality of first fixed grate slices (13) that are fixedly installed, and a plurality of first sliding grate slices (14) that are rotatably connected between two adjacent first fixed grate slices (13); the second R-type grate slice (2) comprises a plurality of second fixed grate slices (20) that are fixedly installed, and a plurality of second sliding grate slices (21) that are slidably connected between two adjacent second fixed grate slices (20); A first clamping groove (130) with an opening downward and mounted on the grate fixed beam is provided on one side of the bottom end of the first fixed grate plate (13), a first through groove (131) with an opening downward and used for hot air circulation is provided on the other side of the bottom end of the first fixed grate plate (13), a plurality of first heat dissipation ribs (132) parallel to each other are provided in the first through groove (131) along the length direction, a plurality of horizontal ventilation ducts (133) are provided on the side wall of the first through groove (131) and on the side opposite to the first clamping groove (130), and a plurality of first vertical ventilation ducts (134) are provided on the upper end of the first through groove (131); the structure of the first sliding grate plate (14) is the same as that of the first fixed grate plate (13), and the first clamping groove (130) corresponding to one side of the first sliding grate plate (14) is mounted on the grate moving beam, and the other side is placed on the upper end of the adjacent first fixed grate plate (13); A second slot (200) opening downward and mounted on the grate fixed beam is provided on one side of the bottom end of the second fixed grate plate (20), a second through slot (201) opening downward and used for hot air circulation is provided on the other side of the bottom end of the second fixed grate plate (20), a plurality of second heat dissipation ribs (202) parallel to each other are provided in the second through slot (201) along the length direction, a plurality of arc-shaped ventilation ducts (203) connected to the second through slot (201) are provided at the bottom end of the second fixed grate plate (20), and a second vertical ventilation duct (22) connected to the outside is provided at the bottom end of each of the arc-shaped ventilation ducts (203); the structure of the second sliding grate plate (21) is the same as that of the second fixed grate plate (20), and the second slot (200) corresponding to one side of the second sliding grate plate (21) is mounted on the grate moving beam, and the other side is placed on the upper end of the adjacent second fixed grate plate (20).

2. A novel push-forward modular R-type grate according to claim 1, characterized in that: The first heat dissipation rib plate (132) comprises a first supporting inner plate (135), and a first heat dissipation outer plate (136) provided on the front and rear sides of the first supporting inner plate (135) and having honeycomb-shaped sidewalls, wherein each honeycomb of the first heat dissipation outer plate (136) is filled with a first porous metal foam layer (137).

3. A novel push-forward modular R-type grate according to claim 2, characterized in that: The second heat dissipation rib plate (202) comprises a second supporting inner plate (204), and a second heat dissipation outer plate (205) provided on the front and rear sides of the second supporting inner plate (204) and having honeycomb-shaped sidewalls, wherein each honeycomb of the second heat dissipation outer plate (205) is filled with a second porous metal foam layer (206).

4. The novel push-forward modular R-shaped grate according to claim 3 is characterized in that: Each honeycomb side wall of the first heat dissipation outer plate (136) and located at the periphery of the first porous metal foam layer (137) is sprayed with a first fluorine silicon nanoparticle coating (138), and each honeycomb side wall of the second heat dissipation outer plate (205) and located at the periphery of the second porous metal foam layer (206) is sprayed with a second fluorine silicon nanoparticle coating (207).

5. The novel push-forward modular R-type grate according to claim 1 is characterized in that: The horizontal ventilation duct (133) is a hole-shaped structure and is provided with a first gradually contracting section (150) and a first gradually expanding section (151) at its left and right ends, respectively. A first flow-disturbing inner core (15) is provided in the horizontal ventilation duct (133). The first flow-disturbing inner core (15) comprises a first horizontal core (152) placed in the horizontal ventilation duct (133) along the length direction, and a plurality of first partition ribs (153) uniformly distributed on the outer wall of the first horizontal core (152) in a divergent shape. A plurality of first ventilation flow channels (154) are formed between each of the first partition ribs (153), the outer wall of the first horizontal core (152), and the inner wall of the horizontal ventilation duct (133).

6. The novel push-forward modular R-shaped grate according to claim 5, characterized in that: A first horizontal guide strip (155) is provided on the outer wall of the first horizontal core (152) and between two adjacent first dividing ribs (153).

7. The novel push-forward modular R-shaped grate according to claim 1, characterized in that: The second vertical ventilation duct (22) is a hole-shaped structure and is provided with a second gradually contracting section (230) and a second gradually expanding section (231) at its upper and lower ends, respectively. A second flow-disturbing inner core (23) is provided in the second vertical ventilation duct (22). The second flow-disturbing inner core (23) comprises a second horizontal core (232) placed in the second vertical ventilation duct (22) along the height direction, and a plurality of second partition ribs (233) uniformly distributed on the outer wall of the second horizontal core (232) in a divergent shape. A plurality of second ventilation flow channels (234) are formed between each of the second partition ribs (233), the outer wall of the second horizontal core (232), and the inner wall of the second vertical ventilation duct (22).

8. The novel push-forward modular R-shaped grate according to claim 7, characterized in that: A second horizontal guide strip (235) is provided on the outer wall of the second horizontal core (232) and located between two adjacent second dividing ribs (233).

9. The novel push-forward modular R-shaped grate according to claim 1, characterized in that: A first arc-shaped notch (16) is provided at the upper end of the first fixed grate plate (13) and the first sliding grate plate (14) and on a side corresponding to the first slot (130), and a plurality of first reinforcing ribs (160) parallel to each other are provided at the first arc-shaped notch (16); a second arc-shaped notch (24) is provided at the upper end of the second fixed grate plate (20) and the second sliding grate plate (21) and on a side corresponding to the second slot (200), and a plurality of second reinforcing ribs (240) parallel to each other are provided at the second arc-shaped notch (24).

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