Direct-fired biomass boiler with water-cooled vibrating grate

Abstract

The invention discloses a water-cooling vibration grate direct-fired biomass boiler, and relates to the technical field of biomass boilers, the water-cooling vibration grate direct-fired biomass boiler comprises a tank body, a dustproof bridge mechanism is fixedly connected to the bottom of the inner side face of the tank body, an anti-overheating mechanism is fixedly connected to the middle position of the inner side face of the dustproof bridge mechanism, and the dustproof bridge mechanism comprises a combustion disc; a spiral groove is formed in the surface of the combustion disc, a mechanism wall is fixedly connected to the middle of the inner side face of the combustion disc, and a motor is fixedly connected to the surface of the mechanism wall. According to the water-cooling vibration grate direct-fired biomass boiler, through cooperative use of the ash bridge prevention mechanism, the stirring assembly, the overheating prevention mechanism, the cooling assembly and other mechanisms, the problems that the temperature of flue gas at the bottom of the boiler is low, and ash contains a complex mixture composed of Cl, S, K, Na and other elements and has high cohesiveness to form an ash bridge and cause blockage are solved; and the water cooling efficiency is improved, so that the fire grate segment is prevented from being damaged due to overheating.

Description

technical field [0001] The invention relates to the technical field of biomass boilers, in particular to a water-cooled vibrating grate direct-fired biomass boiler. Background technique [0002] Biomass direct combustion is mainly based on the technology of water-cooled vibrating grate furnace. The structure of biomass water-cooled vibrating grate boiler: the bottom of the furnace is arranged with a water-cooled vibrating grate, and the lower part of the grate is provided with 3 independent air chambers. The lower part is flared from the upper part of the furnace, and the larger cross-sectional area is the combustion area. The biggest feature of the water-cooled vibrating grate is that it can avoid overheating of the grate sheet, because the biomass fuel has less ash and high combustion temperature, and the grate sheet is particularly easy. The water-cooled vibrating grate is especially suitable for biomass fuel because of overheating. Compared with other direct combustion p...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a water-cooled vibrating grate direct-fired biomass boiler, which solves the problem that the temperature of the flue gas at the bottom of the boiler is low, and the ash contains a complex mixture of elements such as Cl, S, K and Na. , has a strong cohesiveness to form ash bridges and blockage, and how to improve the water cooling efficiency to ensure that the grate will not be damaged due to overheating

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