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Fire grate cooling device, fire grate, incinerator and method

A cooling device and grate technology, which is applied in the direction of combustion methods, grates, incinerators, etc., can solve the problems of shortened life of the grate, low gas convective heat transfer intensity, and overheating of the grate, so as to improve the cooling effect and improve Cooling effect, effect of increasing evaporation rate

Active Publication Date: 2021-06-01
QINGDAO EBARA ENVIRONMENTAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The combustion temperature of the incinerator chamber can be as high as 1000°C, and the surface of the grate directly contacts the violently burning combustibles. When the load is high, the grate will overheat. Excessive temperature will lead to high-temperature corrosion and shorten the life of the grate. , so it is necessary to cool the grate during the incineration process
[0004] At present, the cooling of the grate is mainly carried out by air cooling or water cooling. The inventors found that for the air cooling method, due to the limitation of combustion conditions, the primary air volume is limited, and the gas convective heat transfer intensity is low. The cooling effect is not good; as for the water-cooling method, although the cooling effect is better than the air-cooling method, the manufacturing of the water-cooled grate is complicated and the cost is high. Due to the limitation of the equipment structure, the layout of the cooling water system is difficult, and it is prone to safety accidents such as leakage.

Method used

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  • Fire grate cooling device, fire grate, incinerator and method
  • Fire grate cooling device, fire grate, incinerator and method
  • Fire grate cooling device, fire grate, incinerator and method

Examples

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Embodiment 1

[0039] In a typical embodiment of the present invention, such as figure 1 As shown, a grate cooling device is proposed, which can provide multi-stage enhanced cooling for the overheating area of ​​the grate.

[0040] Specifically, the cooling device includes a fixed grate air duct 1 and a movable grate air duct 2. The fixed grate air duct 1 is used to provide cooling air to the fixed grate pieces, and the movable grate air duct is used to supply the movable grate air duct. The grate provides cooling air, the fixed grate air channel is fixed, and the movable grate air channel can move with the movable grate.

[0041] Both the fixed grate air channel 1 and the movable grate air channel 2 communicate with the air source through pipelines, thereby providing cooling air for each air channel. In an optional embodiment, the air source provides wind power for each air channel through the air main pipe, and the air main pipe is connected to the movable grate air channel through a hose...

Embodiment 2

[0062] In this embodiment, a fire grate is proposed, which includes the cooling device as described above.

[0063] Specifically, the grate includes several grate units arranged in sequence, and each grate unit includes several fixed grate pieces 10 and some movable grate pieces 11, the fixed grate pieces and the movable grate pieces are arranged at intervals, and the cooling device is arranged on Lower part of the grate.

[0064] The fixed grate air channel of the cooling device is connected with the fixed grate piece, and the movable fire grate air channel of the cooling device is connected with the movable fire grate plate, so that the fixed fire grate air channel supports the fixed fire grate piece, and the movable fire grate air channel supports the fixed fire grate piece. The movable grate piece forms a support, so the arrangement is more compact and reasonable, and the grate air duct supports the grate piece, which saves the separate arrangement of the grate support fra...

Embodiment 3

[0069] This embodiment proposes an incinerator comprising a grate as described above.

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PUM

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Abstract

The invention discloses a fire grate cooling device, a fire grate, an incinerator and a method. The fire grate cooling device comprises a fixed fire grate air duct and a movable fire grate air duct. The fixed fire grate air duct and the movable fire grate air duct are both connected with a plurality of cooling air pipe assemblies, each cooling air pipe assembly is provided with at least one cooling air pipeline, each cooling air pipeline is connected with a plurality of cooling air spray pipes, and cooling water pipelines are distributed in the cooling air pipelines and extend to the cooling air spray pipes. Atomizing nozzles are arranged at the tail ends of the cooling water pipelines.

Description

technical field [0001] The invention belongs to the technical field of grate cooling, and in particular relates to a grate cooling device, a grate, an incinerator and a method. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Grate furnace is an important type of furnace in the field of waste incineration. The combustion temperature of the incinerator chamber can be as high as 1000°C, and the surface of the grate directly contacts the violently burning combustibles. When the load is high, the grate will overheat. Excessive temperature will lead to high-temperature corrosion and shorten the life of the grate. , so it is necessary to cool the grate during the incineration process. [0004] At present, the cooling of the grate is mainly carried out by air cooling or water cooling. The inventors found that for the air cooling method, due to the limita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23H17/00F23G5/00
CPCF23H17/00F23G5/002F23H2900/03021
Inventor 王军龙梅殿臣管明健张建东刘广湘张文渊田书营
Owner QINGDAO EBARA ENVIRONMENTAL EQUIP