Water-cooled grate plate, grate module and waste incinerator

Abstract

This utility model discloses a water-cooled grate bar, a grate module, and a waste incinerator, belonging to the technical field of waste incineration equipment. It includes a grate bar body, with the front end bent downwards to form a front end and the rear end extending horizontally to form a rear end. The grate bar body has a water-cooling chamber, with a front water-cooling channel in the front end and a rear water-cooling channel in the rear end. The two ends of the front water-cooling channel form an inlet and an outlet, respectively, communicating with the front side of the water-cooling chamber. The rear water-cooling channel includes an inlet channel and a return channel, communicating with the rear side of the water-cooling chamber. The end of the inlet channel extends through the rear end to form an inlet, and the end of the return channel extends through the rear end to form an outlet. This utility model significantly increases the contact area between the water-cooling medium and the grate bar, improving the cooling efficiency of the medium, avoiding hot spots, and effectively extending the overall service life of the grate bar.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration technology, and in particular to a water-cooled grate bar, a grate module and a waste incinerator. Background Technology

[0002] Waste incinerators, as the main equipment for waste treatment, completely burn combustible waste with oxygen in the air at high temperatures, causing it to oxidize and decompose, thus achieving the purpose of harmless treatment. Among them, grate-type waste incinerators are used as the mainstream incineration equipment due to their advantages such as complete combustion and low flue gas emissions. The grate bar is a key component of grate-type waste incinerators. In practical applications, since the grate bar is directly exposed to high-temperature heat flow, as the calorific value of the waste continues to increase, the surface temperature of the grate bar rises, and its mechanical properties and service life will decrease significantly.

[0003] To address this issue, current commercially available solutions employ water cooling to reduce the temperature of the grate blocks. The specific structure involves a circuitous arrangement of water-cooling pipes along the back of the grate bars, secured by a grid plate. Water-cooling pipes between adjacent grate bars in the same grate section are connected in series via connecting pipes. However, because the cooling medium inside the water-cooling pipes does not directly contact the grate bars, and the contact area between the pipes and the grate bars is limited, especially at the curved front end of the grate bars, heat exchange efficiency is low, making it prone to overheating and excessive wear due to thermal deformation. Furthermore, since the inlets and outlets of the water-cooling pipes are often located directly below the grate bars, the connecting pipes in the same grate section are situated within the moving gap between the upper and lower grate sections. With the reciprocating movement of the grate sections, the connecting pipes are at risk of scraping or rubbing against the grate bars below, potentially leading to leaks and affecting the normal operation of the waste incinerator. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a water-cooled grate bar, grate module, and waste incinerator.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A water-cooled grate bar includes a grate bar body. The front end of the grate bar body is bent downward to form a front end. Side baffles are fixed on both sides of the bottom of the grate bar body. A claw groove is provided at the end of the side baffle away from the front end. The rear end of the grate bar body extends horizontally in a direction away from the claw groove to form a rear end. The grate bar body has a water-cooled chamber. A front water-cooling channel is provided in the front end, and a rear water-cooling channel is provided in the rear end. An inlet end and an outlet end are respectively formed at both ends of the front water-cooling channel, which are connected to the front side of the water-cooled chamber. The rear water-cooling channel includes a water inlet channel and a water return channel, which are connected to the rear side of the water-cooled chamber. The end of the water inlet channel passes through the rear end to form a water inlet, and the end of the water return channel passes through the rear end to form a water outlet. The water-cooled chamber and the front water-cooled channel located within the grate body significantly increase the contact area between the water-cooling medium and the entire grate, thereby improving heat exchange efficiency. Especially for the curved section at the front of the grate body, the front water-cooled channel connects to the water-cooled chamber via its inlet and outlet ends, allowing the water-cooling medium to flow evenly across the front end along the width direction, thus better cooling this area and preventing overheating. A rear end is added to the grate body, with the inlet and outlet located there. The connecting pipe for the medium channel between adjacent grate sections is positioned behind the corresponding claw groove, outside the moving gap between the upper and lower grate sections. This effectively prevents the connecting pipe from scraping or rubbing against the lower grate section during reciprocating motion, ensuring the safe use of the grate.

[0006] The outer surface of the front end has an outwardly curved arc surface, which smoothly transitions to the plane containing the top of the grate plate body. The outwardly curved arc surface reduces the wall thickness between the outer surface of the front end and the front water-cooling channel at this location, thereby improving the cooling effect. Furthermore, the outwardly curved arc surface can buffer the reaction force exerted on the transport of waste to a certain extent, thus correspondingly reducing wear.

[0007] The system includes a lower cover plate. The bottom of the grate plate body has a mounting groove. The front end of the mounting groove extends to the inner side of the front end portion, and the rear end extends to the bottom of the rear end portion. The lower cover plate is sealed to the mounting groove. The mounting groove contains a first fluid groove that forms a water-cooling chamber with the lower cover plate, a second fluid groove that forms a front water-cooling channel with the lower cover plate, and a third fluid groove that forms a rear water-cooling channel with the lower cover plate. The water inlet and outlet are connected through the lower cover plate. By having the lower cover plate, the first fluid groove, the second fluid groove, and the third fluid groove form corresponding water-cooling chambers, front water-cooling channels, and rear water-cooling channels, the casting difficulty of the grate plate is reduced.

[0008] The first fluid tank has a main flow channel protrusion and multiple secondary flow channel protrusions formed inside. The first fluid tank is divided by the main flow channel protrusion into an inlet flow channel for connecting the inlet end and the water inlet channel and an outlet flow channel for connecting the outlet end and the return water channel. The outlet flow channel is divided into an S-shaped flow channel by the secondary flow channel protrusions.

[0009] The main flow channel protrusion and at least one of the secondary flow channel protrusions are provided with an upper air intake channel. The inlet of the upper air intake channel penetrates through the lower cover plate, and the outlet of the upper air intake channel penetrates through the top of the grate plate body.

[0010] The front end has multiple side air intake channels along its width at its bottom. The inlet of each side air intake channel has a first arc surface curved toward the bottom plane of the grate body, and the outlet of each side air intake channel has a second arc surface curved toward the top plane of the grate body. The upper air intake channel and the side air intake channels provide air supply and oxygen supply paths, enabling the waste material above the grate to have sufficient contact with the oxygen in the airflow. At the same time, the airflow provides air cooling to assist in cooling the grate.

[0011] The outer surface of the lower cover plate is provided with a flow-guiding arc surface, which corresponds to the bending position of the front end.

[0012] A guide plate is fixed to the bottom of the lower cover plate. The guide plate is located between the upper air intake channel and the claw groove, and is inclined from bottom to top toward the front end. The guide plate, the lower cover plate and the two side baffles together form a guide chamber.

[0013] This utility model also provides a grate module, including a grate frame, fixed grate beams and movable grate beams alternately arranged in the grate frame along the waste conveying direction, and grate plates as described above. Multiple grate plates are fixed side by side on the fixed grate beam via claw grooves, and the water outlets and water inlets of adjacent grate plates on the fixed grate beam are connected in series via connecting pipes. Multiple grate plates are fixed side by side on the movable grate beam via claw grooves, and the water outlets and water inlets of adjacent grate plates on the movable grate beam are connected in series via connecting pipes.

[0014] This utility model also provides a waste incinerator, including the grate module as described above.

[0015] This invention has the following advantages: By setting a water-cooled chamber inside the grate body and a front water-cooled channel at the front end, the contact area between the water-cooling medium and the entire grate body is greatly increased, thereby improving heat exchange efficiency. Especially for the curved part at the front end of the grate body, the front water-cooled channel is connected to the water-cooled chamber through the inlet and outlet ends, allowing the water-cooling medium to flow evenly through the front end along the width direction, thus better cooling this part and avoiding overheating. A rear end is added to the grate body, with the inlet and outlet located on the rear end. The connecting pipe for connecting the medium channel of adjacent grate sections is correspondingly set behind the claw groove, that is, located outside the moving gap between the upper and lower grate sections, thereby effectively preventing the connecting pipe from scraping or rubbing against the grate below during reciprocating motion, ensuring the safe use of the grate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a disassembly diagram of the present invention; Figure 4 This is a bottom view of the present invention after the lower cover plate has been removed; Figure 5 This is a structural diagram of the present invention from another angle after the lower cover plate has been removed; Figure 6 This is a schematic diagram of the structure of the lower cover plate in this utility model; Figure 7 This is a schematic diagram of the structure of this utility model applied to the grate module.

[0018] 1. Grate bar body; 101. Water-cooled chamber; 102. First fluid channel; 1021. Water inlet channel; 1022. Water outlet channel; 103. Mounting groove; 2. Side baffle; 201. Claw groove; 3. Front end; 301. Front water-cooling channel; 3011. Inlet end; 3012. Outlet end; 302. Second fluid channel; 303. Outer curved surface; 4. Rear end; 401. Rear water-cooling channel; 4011. Water inlet channel; 4012. Water return channel ; 402, Third fluid tank; 5, Lower cover plate; 501, Inlet; 502, Outlet; 503, Mounting port; 504, Guide arc surface; 505, Guide plate; 6, Main flow channel protrusion; 7, Secondary flow channel protrusion; 8, Air intake protrusion; 9, Upper air intake channel; 10, Side air intake channel; 1001, First arc surface; 1002, Second arc surface; 11, Connecting pipe; 12, Grate frame; 13, Fixed grate beam; 14, Movable grate beam; 15, Movement clearance. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figure 1As shown, this utility model provides a water-cooled grate plate, including a grate plate body 1. The front end of the grate plate body 1 is bent downward to form a front end portion 3. Side baffles 2 are fixed on both sides of the bottom of the grate plate body 1. A claw groove 201 is provided at the end of the side baffle 2 away from the front end portion 3. The grate plate body is supported on the grate beam by the claw groove 201. The rear end of the grate plate body 1 extends horizontally in a direction away from the claw groove 201 to form a rear end portion 4, so that the entire grate plate has a flat F-shaped structure, as shown. Figure 2 As shown, the grate body 1 has a water-cooled chamber 101, the front end 3 has a front water-cooled channel 301, and the rear end 4 has a rear water-cooled channel 401. The water-cooled chamber 101 within the grate body 1 and the front water-cooled channel 301 within the front end 3 significantly increase the contact area between the water-cooling medium and the entire grate, thereby improving heat exchange efficiency. The two ends of the front water-cooled channel 301 form an inlet end 3011 and an outlet end 3012, respectively, connected to the front side of the water-cooled chamber 101. The water-cooling medium flows evenly from the water-cooled chamber 101 along its width through the front end 3, thus better cooling the front end 3. To address the issue of excessive heat in this area in existing technologies and prevent excessive wear caused by thermal deformation, the rear water-cooling channel 401 includes an inlet channel 4011 and a return channel 4012 connected to the rear side of the water-cooling chamber 101. The end of the inlet channel 4011 passes through the rear end 4 to form an inlet 501, and the end of the return channel 4012 passes through the rear end 4 to form an outlet 502. The inlet and outlet 501 are located behind the claw groove 201, and the connecting pipe 11 for connecting the outlets 502 and inlets 501 between adjacent grate bars is also correspondingly arranged behind the claw groove 201. Figure 7 As shown, at this time, the connecting pipe 11 is located outside the moving gap 15 between the upper and lower grate sections, which effectively avoids the connecting pipe 11 from scraping or rubbing against the grate plate below during the reciprocating motion, thus ensuring the safe use of the grate plate.

[0023] like Figure 2 As shown, the outer surface of the front end portion 3 has an outer curved arc surface 303, which smoothly transitions to the plane containing the top of the grate plate body 1. By providing the outer curved arc surface 303, the wall thickness between the outer surface of the front end portion 3 and the front water cooling channel 301 at this location is reduced, thereby improving the cooling effect. Furthermore, the outer curved arc surface 303 can buffer the reaction force experienced by the grate plate during waste transport to a certain extent, thus correspondingly reducing wear and increasing the service life of the grate plate.

[0024] like Figure 3As shown, including the lower cover plate 5, the bottom of the grate plate body 1 is provided with a mounting groove 103, the front end of the mounting groove 103 extends to the inner side of the front end portion, and the rear end of the mounting groove 103 extends to the bottom of the rear end portion 4, as shown. Figure 6 As shown, the front end of the lower cover plate 5 is bent to form a flat L-shaped structure, which is sealed and fitted with the mounting groove 103. Specifically, the lower cover plate 5 is placed in the mounting groove 103 and can be sealed and fixed by welding, or it can be installed by using high-temperature sealant and bolts. The mounting groove 103 has a first fluid groove 102 that forms a water-cooled chamber 101 with the lower cover plate 5, a second fluid groove 302 that forms a front water-cooled channel 301 with the lower cover plate 5, and a third fluid groove 4 that forms a rear water-cooled channel 401 with the lower cover plate 5. 02. The split structure consisting of the lower cover plate 5 and the grate plate body 1 allows the water cooling channels formed inside the grate plate for the flow of water cooling medium to be enclosed by the lower cover plate 5 and the fluid channels. Compared with the closed chamber structure, the fluid channels can reduce the casting difficulty of the grate plate. Of course, the water inlet 501 and the water outlet 502 are provided through the lower cover plate 5. Specifically, the water inlet 501 and the water outlet 502 can be set as threaded holes (not shown in the figure). The connecting pipe 11 is sealed with the threaded hole through the threaded joint and the high-temperature sealing ring.

[0025] Further preferred, such as Figure 4 and Figure 5 As shown, the first fluid tank 102 has a main flow channel protrusion 6 and multiple secondary flow channel protrusions 7 formed within it. The first fluid tank 102 is divided by the main flow channel protrusion 6 into an inlet flow channel 1021 for connecting the inlet end 3011 and the water inlet channel 4011, and an outlet flow channel 1022 for connecting the outlet end 3012 and the return water channel 4012. The outlet flow channel 1022 is divided into an S-shaped flow channel by the secondary flow channel protrusions 7. When the lower cover plate 5 is fitted into the mounting groove 103, the main flow channel protrusion 6 and the secondary flow channel protrusions 7 are in sealed contact with the inner side of the lower cover plate 5. Specifically, the end faces of the main flow channel protrusion 6 and the secondary flow channel protrusions 7 can be sealed to the inner side of the lower cover plate 5 using high-temperature sealant. Figure 5 It can be seen that the water-cooling medium flows into the water inlet channel 4011 through the water inlet 501, passes through the water inlet channel 1021, the inlet end 3011, the second fluid tank 302, the outlet end 3012, the S-shaped channel and the return water channel 4012 in sequence, and finally flows out through the water outlet 502, and then enters the water inlet 501 of the adjacent grate through the connecting pipe 11.

[0026] Further preferred, such as Figure 6 The main flow channel protrusion 6 and at least one secondary flow channel protrusion 7 are provided with upper air intake channels 9. The inlet of the upper air intake channel 9 penetrates the lower cover plate 5, and the outlet of the upper air intake channel 9 penetrates the top of the grate plate body 1. Figure 1 and Figure 2 As shown, the bottom of the front end 3 is provided with multiple side air channels 10 along the width direction. The upper air channel 9 and the side air channels 10 together provide an air supply and oxygen supply path, which can make the garbage material located above the grate plate fully contact the oxygen in the air supply airflow, so that the garbage can burn more completely. At the same time, the air supply airflow can also provide air cooling, thereby assisting water cooling to improve the cooling effect on the grate plate.

[0027] Specifically, in this solution, such as Figure 3 and Figure 4 As shown, air-guiding protrusions 8 are formed on the main flow channel protrusion 6 and each secondary flow channel protrusion 7. The upper air-guiding channel 9 is installed through each air-guiding protrusion 8. The lower cover plate 5 is provided with an installation port 503 for the air-guiding protrusion 8 to pass through. Similarly, at the installation port 503, the air-guiding protrusion 8 and the inner wall of the installation port 503 can be sealed and connected by high-temperature sealant or welding to ensure the sealing of the entire lower cover plate 5 connection.

[0028] Further preferred, such as Figure 2 As shown, the inlet of the side air intake channel 10 has a first arc surface 1001 that curves toward the bottom plane of the grate body 1, and the outlet of the side air intake channel 10 has a second arc surface 1002 that curves toward the top plane of the grate body 1, so that the air supply can cool the surface of the front end 3 along the first arc surface 1001 and the second arc surface 1002, and blow away the debris at the front end 3.

[0029] like Figure 6 As shown, the outer surface of the lower cover plate 5 is provided with a flow guiding arc surface 504, which corresponds to the bending position of the front end 3; a flow guide plate 505 is fixed at the bottom of the lower cover plate 5, the flow guide plate 505 is located between the upper air intake channel 9 and the claw groove 201, and is inclined from bottom to top towards the front end 3. The flow guide plate 505, the lower cover plate 5 and the two side baffles 2 together form a flow guiding chamber; the air supply airflow is blown towards the bottom of the grate plate, and is collected in the flow guiding chamber by the flow guide plate 505, which improves the utilization rate of the air supply airflow, and it is blown out to the maximum extent by the upper air intake channel 9 and the side air intake channel 10, which improves the air cooling and oxygen supply effect. Of course, in order to improve the installation strength of the flow guide plate 505, multiple reinforcing ribs are fixed on the side of the flow guide plate 505 facing away from the flow guiding chamber.

[0030] like Figure 7As shown, this utility model also provides a grate module, including a grate frame 12, fixed grate beams 13 and movable grate beams 14 alternately arranged in the grate frame 12 along the waste conveying direction, and grate plates as described above. The reciprocating motion of the movable grate beams 14 is prior art and will not be elaborated here. Multiple grate plates are fixed side-by-side on the fixed grate beams 13 via claw grooves 201 to form a fixed grate unit. The outlets 502 and inlets 501 of adjacent grate plates on the fixed grate beams 13 are connected in series via connecting pipes 11. Multiple grate plates are also fixed side-by-side on the movable grate beams 14 via claw grooves 201 to form a movable grate unit. The outlets 502 and inlets 501 of adjacent grate plates on the movable grate beams 14 are connected in series via connecting pipes 11. Figure 7 As can be seen, the front end 3 of each grate piece in the movable grate unit is placed on the top of the grate piece body 1 of each grate piece in the fixed grate unit. There is a moving gap 15 between the movable grate unit and the fixed grate unit, and the connecting pipe 11 is located outside the moving gap 15. Thus, the grate module using this grate piece structure eliminates the risk of scraping and friction between the connecting pipe 11 and the grate piece due to the reciprocating motion of the movable grate unit.

[0031] In addition, this utility model also provides a waste incinerator, including the grate module as described above. During the operation of this waste incinerator, the airflow is delivered from the bottom of the grate frame 12 of the grate module and gathers in the guide chamber of each grate plate. It is then sent into the combustion chamber through the upper air intake channel 9 and the side air intake channel 10, providing air cooling to the grate plates. At the same time, the water cooling medium enters through the water inlet 501 of the first grate plate of each movable grate unit and each fixed grate unit, flows evenly through and fills the water cooling chamber 101 and the front water cooling channel 301. Compared with the prior art, this significantly increases the contact area between the water cooling medium and the grate plates, thereby improving the cooling efficiency of the medium and effectively cooling the grate plate body and the front end 3, avoiding the existence of hot spots, preventing the grate plates from undergoing thermal deformation due to local high temperature, and effectively improving the overall service life of the grate plates.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water-cooled grate bar, comprising a grate bar body, wherein the front end of the grate bar body is bent downward to form a front end portion, and side baffles are fixed on both sides of the bottom of the grate bar body, wherein a claw groove is provided at the end of the side baffle away from the front end portion, characterized in that, The rear end of the grate bar body extends horizontally away from the claw groove to form a rear end. The grate bar body has a water-cooled chamber. The front end has a front water-cooled channel, and the rear end has a rear water-cooled channel. The two ends of the front water-cooled channel form an inlet end and an outlet end that are connected to the front side of the water-cooled chamber, respectively. The rear water-cooled channel includes an inlet channel and a return channel that are connected to the rear side of the water-cooled chamber. The end of the inlet channel passes through the rear end to form an inlet, and the end of the return channel passes through the rear end to form an outlet.

2. The water-cooled grate bar according to claim 1, characterized in that, The outer surface of the front end has an outwardly curved arc surface, which smoothly transitions to the plane containing the top of the grate plate body.

3. A water-cooled grate bar according to claim 1 or 2, characterized in that, The grate body includes a lower cover plate. The bottom of the grate plate body is provided with an installation groove. The front end of the installation groove extends to the inner side of the front end and the rear end extends to the bottom of the rear end. The lower cover plate is sealed to the installation groove. The installation groove is provided with a first fluid groove that forms a water-cooling chamber with the lower cover plate, a second fluid groove that forms a front water-cooling channel with the lower cover plate, and a third fluid groove that forms a rear water-cooling channel with the lower cover plate. The water inlet and the water outlet are provided through the lower cover plate.

4. A water-cooled grate bar according to claim 3, characterized in that, The first fluid tank has a main flow channel protrusion and multiple secondary flow channel protrusions formed inside. The first fluid tank is divided by the main flow channel protrusion into an inlet flow channel for connecting the inlet end and the water inlet channel and an outlet flow channel for connecting the outlet end and the return water channel. The outlet flow channel is divided into an S-shaped flow channel by the secondary flow channel protrusions.

5. A water-cooled grate bar according to claim 4, characterized in that, The main flow channel protrusion and at least one of the secondary flow channel protrusions are provided with an upper air intake channel. The inlet of the upper air intake channel penetrates through the lower cover plate, and the outlet of the upper air intake channel penetrates through the top of the grate plate body.

6. A water-cooled grate bar according to claim 5, characterized in that, The front end has multiple side air channels along its width direction at its bottom. The inlet of each side air channel has a first arc surface that curves toward the bottom plane of the grate body, and the outlet of each side air channel has a second arc surface that curves toward the top plane of the grate body.

7. A water-cooled grate bar according to claim 5 or 6, characterized in that, The outer surface of the lower cover plate is provided with a flow-guiding arc surface, which corresponds to the bending position of the front end.

8. A water-cooled grate bar according to claim 7, characterized in that, A guide plate is fixed to the bottom of the lower cover plate. The guide plate is located between the upper air intake channel and the claw groove, and is inclined from bottom to top toward the front end. The guide plate, the lower cover plate and the two side baffles together form a guide chamber.

9. A grate module, characterized in that, The grate includes a grate frame, fixed grate beams and movable grate beams alternately arranged in the grate frame along the waste conveying direction, and grate plates as described in any one of claims 1-8. A plurality of the grate plates are fixed side by side on the fixed grate beam via claw grooves, and the outlets and inlets of adjacent grate plates on the fixed grate beam are connected in series via connecting pipes. A plurality of the grate plates are fixed side by side on the movable grate beam via claw grooves, and the outlets and inlets of adjacent grate plates on the movable grate beam are connected in series via connecting pipes.

10. A waste incinerator, characterized in that, Includes the grate module as described in claim 9.

Images