Biomass air-heating fireplace

Abstract

The invention provides a biomass air-heating fireplace. The biomass air-heating fireplace comprises a furnace body, an automatic unloading system, an air heating system and a smoke discharging system,wherein the furnace body comprises an upper combustion chamber, a lower combustion chamber and an ash chamber; the lower combustion chamber is arranged above the ash chamber and is used for pyrolyzing biomass pellet fuel to produce volatile flammable gas; the upper combustion chamber is arranged above the lower combustion chamber and is used for burning the volatile flammable gas; the automatic unloading system corresponds to the lower combustion chamber; the smoke discharging system is connected to the upper combustion chamber and is used for discharging smoke outwards; the air heating system corresponds to the furnace body and the smoke discharging system; the cold air flows through the furnace body and the smoke discharging system so as to be heated, and then the heated air is discharged outwards for air heating. The fuel is incompletely combusted in the lower combustion chamber to decompose volatile gas; and then the volatile gas is completely combusted in the upper combustion chamber, thus, a secondary air inlet combustion system is provided to ensure that biomass particles are not coked, and the outward discharging of dust is also reduced.

Description

technical field [0001] The invention relates to a fireplace, in particular to a biomass wind-heated fireplace. Background technique [0002] The air-heating fireplaces on the market are based on the primary combustion of biomass particles, and the heat from the direct combustion of the particles is used to heat the air-heating exchanger. [0003] The so-called primary combustion means that the biomass particles are directly burned in the combustion chamber, the lower part of the combustion chamber enters the air, the wall has negative pressure, and the combustion exhaust gas is discharged out of the combustion chamber. However, this combustion method has a disadvantage. When the ash content of the fuel is small, it will not coke, which is no problem; but when the fuel is relatively poor, that is to say, the ash content is relatively large, it will coke in the combustion chamber and affect the combustion. At present, most of the biomass pellet fuels on the market are fuels w...

AI Technical Summary

Problems solved by technology

Although it solves the purpose of reducing emissions, it cannot solve the problem of coking well, and there is a big difference in the structural design of boilers and fireplaces

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