Grate structure of garbage incinerator

Abstract

The utility model relates to the technical field of incinerators, in particular to a fire grate structure of a garbage incinerator. The fire grate structure of the garbage incinerator comprises a fire grate segment, a ventilation cavity is formed in the bottom of the fire grate segment, and shaft sleeve holes used for being connected with a mounting shaft are formed in the two side walls, close to the rear end face, of the fire grate segment; a plurality of hollow fillets which are distributed at equal intervals and communicate with the ventilation cavity are fixedly embedded in the upper surfaces of the fire grate segments, a plurality of side air openings which are distributed at equal intervals are formed in the two side walls of each hollow fillet, and an air guide flow channel structure is formed between every two adjacent hollow fillets. A plurality of slag pushing edges distributed at equal intervals are fixedly installed on the lower surfaces of the fire grate segments, and the slag pushing edges are close to the front end faces of the fire grate segments. According to the fire grate structure of the garbage incinerator, the slag pushing edges can push waste slag remaining in the air guide flow channel structure out of the air guide flow channel structure, and cleanliness of the air guide flow channel structure is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of incinerators, in particular to a grate structure of a garbage incinerator. Background Art

[0002] The grate is a component used in large quantities in the grate incinerator, which plays the role of supporting, stirring and transporting the solid combustible materials in the incinerator. The existing grates for medical waste include flipping grates, sliding grates and fixed grates. In the process of incinerating garbage in the medical waste incinerator, in order to ensure normal combustion, primary air must be delivered into the incinerator. During the process of incineration of garbage on the grate, some garbage is not completely burned and will stick to the grate, causing the gap of the grate to be blocked. Therefore, the grate needs to be cleaned every once in a while, which is time-consuming and laborious. At the same time, due to the insufficient mixing of the garbage layer and the primary air, the local air distribution is uneven, and the wind pressure is insufficient, the garbage combustion speed is limited, the slag thermal burn reduction rate fluctuates greatly, and the normal operation of the incinerator is affected.

[0003] Therefore, it is necessary to provide a new grate structure of a garbage incinerator to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a grate structure of a garbage incinerator.

[0005] The grate structure of the garbage incinerator provided by the utility model comprises a grate plate, a ventilation cavity is provided at the bottom of the grate plate, and both side walls of the grate plate close to the rear end surface are provided with shaft sleeve holes for connecting the mounting shaft;

[0006] The upper surface of the grate plate is fixedly embedded with a plurality of equally distributed hollow ribs connected to the ventilation cavity, and the two side walls of the hollow ribs are each provided with a plurality of equally distributed side air ports, and an air guide channel structure is formed between two adjacent hollow ribs;

[0007] The front end surface of the grate plate is provided with an arc surface, and the arc surface is provided with a plurality of ventilation holes connected with the ventilation cavity;

[0008] A plurality of equidistantly distributed slag pushing ribs are fixedly mounted on the lower surface of the grate plate, and the slag pushing ribs are close to the front end surface of the grate plate.

[0009] Preferably, the slag pushing ridges and the air guiding channel structures are staggeredly distributed.

[0010] Preferably, the arc surface is provided with a plurality of arc grooves which are distributed at equal intervals, and the arc grooves correspond one to one with the air guide channel structures.

[0011] Preferably, it further comprises side covers, wherein a plurality of side covers are provided, and the side covers are fixedly embedded on the side walls of the hollow ribs and cover the side air outlets, and the front end surface of the side covers is provided with air outlets.

[0012] Preferably, it further comprises a shrinkable cover, which is fixedly engaged on the air outlet of the side cover, and the shrinkable cover is a shrinkable structure, and an exhaust port is provided on the front end surface of the shrinkable cover.

[0013] Compared with the related art, the grate structure of the garbage incinerator provided by the utility model has the following beneficial effects:

[0014] The utility model discloses that when the sliding grate plate is driven by the pressure liquid pushing rod in the incinerator, the sliding grate plate slides forward along the fixed grate plate, and the slag pushing ridges can push the waste slag remaining in the air guide channel structure out of the air guide channel structure, thereby ensuring the cleanliness of the air guide channel structure and avoiding the hidden danger of the air guide channel structure being blocked. By arranging the side covers to cover the side air ports, the waste slag in the air guide channel structure is reduced from falling from the side air ports to below the grate plate. At the same time, the side covers can make the airflow stably blow in the direction of garbage movement, thereby ensuring that the air storage capacity of each air outlet is kept in roughly the same state as much as possible, thereby making the grate supply air more uniform and ensuring the uniformity of garbage combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a preferred embodiment of the grate structure of a garbage incinerator provided by the utility model;

[0016] Figure 2 for Figure 1 The structural schematic diagram of the bottom of the grate is shown;

[0017] Figure 3 for Figure 1 The schematic diagram of the installation structure of the upper side cover of the grate is shown;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure of the side cover shown;

[0019] Figure 5 for Figure 3 A schematic diagram of the installation structure of the shrink cover on the side cover is shown;

[0020] Figure 6 for Figure 1 The partial enlarged structural schematic diagram of the grate plate cross-section shown;

[0021] Figure 7 for Figure 3 A partially enlarged structural schematic diagram of a grate section;

[0022] Figure 8 for Figure 5 A partially enlarged schematic diagram of the cross-sectional view of the shrink hood installed on the grate plate.

[0023] Numbers in the figure: 1, grate; 1a, ventilation cavity; 1b, shaft sleeve hole; 11, hollow rib; 11a, side air outlet; 12, arc surface; 12a, ventilation hole; 12b, arc groove; 13, slag pushing rib; 2, side cover; 2a, air outlet; 3, shrinkage cover; 3a, exhaust outlet. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0026] See also Figures 1 to 8 The utility model provides a waste incinerator grate structure, wherein the waste incinerator grate structure includes a ventilation cavity 1a provided at the bottom of the grate plate 1, and the two side walls of the grate plate 1 close to the rear end surface are provided with shaft sleeve holes 1b for connecting the mounting shaft, and the upper surface of the grate plate 1 is fixedly embedded with a plurality of equally distributed hollow ribs 11 connected to the ventilation cavity 1a, and the lower surface of the grate plate 1 is fixedly installed with a plurality of equally distributed slag pushing ribs 13, and the slag pushing ribs 13 are close to the front end surface of the grate plate 1, and the slag pushing ribs 13 are staggered with the air guide channel structure;

[0027] The grate plate 1 is divided into a sliding type and a fixed type. Specifically, the sliding type and the fixed type are staggeredly installed on the mounting frame of the incinerator using a stepped structure. The sliding grate plate 1 is connected to the mounting shaft of the sliding connection in the incinerator through the shaft sleeve hole 1b, and the back of the sliding grate plate 1 is fixedly connected to the output end of the hydraulic push rod, while the fixed grate plate 1 is fixedly installed on the mounting frame of the incinerator, and the slag pushing ribs 13 on the sliding grate plate 1 are inserted into the air guide channel structure on the fixed grate plate 1;

[0028] Therefore, when the sliding grate plate 1 is driven by the driving force of the hydraulic pressure rod in the incinerator, the sliding grate plate 1 slides forward along the fixed grate plate 1, and the slag pushing ridge 13 can push the waste slag remaining in the air guide channel structure out of the air guide channel structure, thereby ensuring the cleanliness of the air guide channel structure and avoiding the hidden danger of the air guide channel structure being blocked;

[0029] In addition, in order to facilitate the downward discharge of waste slag in the air guide channel structure, a plurality of equally spaced arc grooves 12b are provided on the arc surface 12, and the arc grooves 12b correspond one-to-one to the air guide channel structure. Therefore, the waste slag in the air guide channel structure can be pushed down from the grate plate 1 in sequence.

[0030] In the embodiments of the present invention, please refer to Figures 1 to 8 The two side walls of the hollow ribs 11 are provided with a plurality of equally spaced side air outlets 11a, and an air guide channel structure is formed between two adjacent hollow ribs 11. The front end surface of the grate plate 1 is provided with an arc surface 12, and the arc surface 12 is provided with a plurality of ventilation holes 12a connected with the ventilation cavity 1a.

[0031] It should be noted that the side air ports 11a and the ventilation holes 12a can effectively improve the mixing of the primary air and the garbage material, ensure the complete combustion of the garbage, and increase the combustion speed of the garbage.

[0032] In the embodiments of the present invention, please refer to Figure 1 and Figure 4 The waste incinerator grate structure further includes a side cover 2, a plurality of side covers 2 are provided, and the side cover 2 is fixedly embedded on the side wall of the hollow rib 11 and is provided on the side air port 11a, and the front end surface of the side cover 2 is provided with an air outlet 2a;

[0033] The grate structure of the garbage incinerator further comprises a shrinking cover 3, which is fixedly engaged with the air outlet 2a of the side cover 2, and is a shrinking structure. An air outlet 3a is provided on the front end surface of the shrinking cover 3.

[0034] It should be noted that: by setting the side cover 2 to cover the side air port 11a, the waste residue in the air guide channel structure is reduced from falling from the side air port 11a to the bottom of the grate plate 1. At the same time, the side cover 2 can make the air flow stably blow in the direction of garbage movement, and can ensure that the air storage volume of each air outlet 2a is kept roughly the same as much as possible, so that the grate air supply is more uniform, ensuring the uniformity of garbage combustion;

[0035] In addition, the shrink cover 3 provided on the side cover 2, on the one hand, reduces the diameter of the exhaust port 3a, further reducing the hidden danger of waste residue blocking the side air port 11a in the air guide channel structure, and on the other hand, the reduction in the diameter of the exhaust port 3a can speed up the flow rate of the air flow, so that the air flow has more penetration into the accumulated garbage and makes it burn more fully;

[0036] In this embodiment, the air outlets 3a of the shrink hood 3 can be staggeredly distributed obliquely upward and forward and straight in front.

[0037] The working principle of the grate structure of the garbage incinerator provided by the utility model is as follows:

[0038] The grate plate 1 is divided into a sliding type and a fixed type. Specifically, the sliding type and the fixed type are staggeredly installed on the mounting frame of the incinerator using a stepped structure. The sliding grate plate 1 is connected to the mounting shaft of the sliding connection in the incinerator through the shaft sleeve hole 1b, and the back of the sliding grate plate 1 is fixedly connected to the output end of the hydraulic push rod, while the fixed grate plate 1 is fixedly installed on the mounting frame of the incinerator, and the slag pushing ribs 13 on the sliding grate plate 1 are inserted in the air guide channel structure on the fixed grate plate 1; therefore, when the sliding grate plate 1 is subjected to the incinerator, Under the driving force of the hydraulic push rod, the sliding grate plate 1 slides forward along the fixed grate plate 1, and the slag pushing ridge 13 can push the waste slag remaining in the air guide channel structure out of the air guide channel structure, thereby ensuring the cleanliness of the air guide channel structure and avoiding the hidden danger of the air guide channel structure being blocked. In addition, in order to facilitate the downward discharge of the waste slag in the air guide channel structure, a plurality of equally spaced arc grooves 12b are provided on the arc surface 12, and the arc grooves 12b correspond to the air guide channel structure one by one. Therefore, the waste slag in the air guide channel structure can be pushed down from the grate plate 1 in sequence;

[0039] The side air vents 11a and the ventilation holes 12a can effectively improve the mixing of primary air and garbage materials, ensure the full combustion of garbage, and increase the combustion speed of garbage. By setting the side cover 2 to cover the side air vents 11a, the waste residue in the air guide channel structure is reduced from falling from the side air vents 11a to the bottom of the grate plate 1. At the same time, the side cover 2 can make the air flow stably blow in the direction of garbage movement, and can ensure that the wind storage capacity of each air outlet 2a is kept roughly the same as much as possible, so that the grate air supply is more uniform and the uniformity of garbage combustion is ensured. In addition, the contraction cover 3 provided on the side cover 2, on the one hand, reduces the diameter of the exhaust port 3a, further reduces the hidden danger of waste residue in the air guide channel structure blocking the side air vent 11a, and on the other hand, the reduction in the diameter of the exhaust port 3a can speed up the flow rate of the air flow, so that the air flow is more penetrable to the accumulated garbage and makes it burn more fully.

[0040] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A waste incinerator grate structure, comprising a grate plate (1), a ventilation cavity (1a) being provided at the bottom of the grate plate (1), and sleeve holes (1b) for connecting a mounting shaft being provided on both side walls of the grate plate (1) close to a rear end surface, wherein: A plurality of equally spaced hollow ribs (11) connected to the ventilation cavity (1a) are fixedly embedded on the upper surface of the grate plate (1), and a plurality of equally spaced side air ports (11a) are provided on both side walls of the hollow ribs (11), and an air guide channel structure is formed between two adjacent hollow ribs (11); The front end surface of the grate plate (1) is provided with an arc surface (12), and the arc surface (12) is provided with a plurality of ventilation holes (12a) which are in communication with the ventilation cavity (1a); A plurality of equidistantly distributed slag pushing ridges (13) are fixedly mounted on the lower surface of the grate plate (1), and the slag pushing ridges (13) are close to the front end surface of the grate plate (1).

2. The grate structure of the garbage incinerator according to claim 1, characterized in that: The slag pushing ridges (13) and the air guide channel structure are distributed in an alternating manner.

3. The grate structure of the garbage incinerator according to claim 1, characterized in that: The arc surface (12) is provided with a plurality of arc grooves (12b) distributed at equal intervals, and the arc grooves (12b) correspond one to one with the air guide channel structure.

4. The grate structure of the garbage incinerator according to claim 1, characterized in that: It also comprises a side cover (2), a plurality of side covers (2) are provided, and the side covers (2) are fixedly embedded on the side wall of the hollow rib (11) and cover the side air outlet (11a), and the front end surface of the side cover (2) is provided with an air outlet (2a).

5. The grate structure of the garbage incinerator according to claim 4, characterized in that: It also comprises a shrinkable cover (3), the shrinkable cover (3) being fixedly engaged with the air outlet (2a) of the side cover (2), the shrinkable cover (3) being a shrinkable structure, and the front end surface of the shrinkable cover (3) being provided with an air outlet (3a).

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