Biomass water-tube boiler capable of enabling fuel to be sufficiently combusted

Abstract

The invention discloses a biomass water-tube boiler capable of enabling fuel to be sufficiently combusted. The biomass water-tube boiler comprises a hearth, a reciprocating type fire grate, a biomassfeeding hopper and a fuel adding hopper; a combustion chamber and a convection tube cavity are formed in the hearth; the convection tube cavity is located at the upper end of the combustion cavity; the convection tube cavity communicates with the combustion cavity through a flue gas ascending opening; an air inlet and a total slag outlet are formed in the outer side the hearth; a spraying openingis formed in the hearth; the reciprocating type fire grate is arranged in the combustion cavity; one end of the reciprocating type fire grate is a feeding end, and the other end of the reciprocating type fire grate is a slag discharging end; the fuel adding hopper is connected to the lower end of the biomass feeding hopper and communicates with an inner cavity of the biomass feeding hopper; and asecondary air supply port communicating with the flue gas ascending opening inside the hearth is further formed in the hearth. The biomass water-tube boiler has the advantages that secondary air supply is adopted, and combustion in the hearth can be more sufficient; and the secondary air supply port communicating with the flue gas ascending opening is further formed in the hearth, a part of freshair blown from the secondary air supply port is supplemented in the combustion cavity and is used for enabling biomass in the combustion cavity to be combusted more sufficiently, and the other part ofthe flesh air is supplemented into the convection tube cavity and is used for enabling combustible gas in the convection tube cavity to be combusted more sufficiently.

Description

technical field [0001] The invention relates to a biomass boiler, in particular to a biomass water tube boiler with fully combustible fuel. Background technique [0002] At present, with the massive consumption of non-renewable energy such as coal, oil, and natural gas, the shortage is increasing, and the use of traditional combustion methods will also cause environmental pollution. As a renewable energy source, biomass materials are receiving more and more attention from the society, but At present, biomass gasification technology only stays in the use of gasifier to produce combustible gas for daily cooking, which greatly limits the application and development of biomass gasification technology. At present, environmentally friendly boilers burning renewable energy granular biomass are being widely promoted and applied at home and abroad, but the existing biomass boilers still have problems such as insufficient combustion, large smoke, not environmentally friendly, and low ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a biomass water tube boiler with fully combustible fuel, which solves the problems of insufficient combustion, large flue gas, insufficient environmental protection and low thermal efficiency of the existing biomass boilers. question

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