A variety of biomass fuel mixed combustion fuel furnace

Abstract

The invention discloses a mixing burning fuel furnace for various biomass fuels. The mixing burning fuel furnace comprises a furnace body, a rotatable fire grate, a mode water wall, a slag receiving groove, a plurality of circulating openings, a smoke exhausting opening and a base, wherein the furnace body comprises an inner furnace body and an outer furnace body which are arranged in a mutually sleeving mode; the rotatable fire grate is rotatably and vertically arranged in the inner furnace body through a rotating shaft and comprises a plurality of fuel trays, paired fins, a pneumatic biomasspowder feeding pipe and a biomass particle inlet, wherein the fuel trays are arranged at intervals in sequence in the axial direction of the shaft, the paired fins are symmetrically arranged on the two sides of the shaft in a spiral shape and penetrate through the multiple fuel trays in sequence, one end of the pneumatic biomass powder feeding pipe penetrates through the furnace body and extendsto the position opposite to the fins, and the biomass particle inlet is formed in the top of the furnace body; the mode water wall is arranged on the side wall of the furnace body; the slag receivinggroove is detachably formed in the bottom of the rotatable fire grate; and the multiple circulating openings are evenly formed in the side wall, close to the bottom of the inner furnace body at intervals in an annular shape. According to the mixing burning fuel furnace for the various biomass fuels, biomass powder and the biomass particle fuels can be mixed fully and burnt, full burning is achieved, the heat utilization rate is high, and energy saving and environmental protection are achieved.

Description

technical field [0001] The invention relates to the technical field of environmentally friendly fuels, in particular to a fuel furnace for mixing and burning multiple biomass fuels. 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 smo...

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Problems solved by technology

[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 , the current biomass gasification technology only stays in the use of gasifiers 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, low thermal efficiency, and inconvenient maintenance. Especially in the combustion process, because the biomass boiler contains a lot of chlorine and alkaline substances, the fly ash particles of these substances are bonded to the boiler body, causing serious corrosion of the boiler, which makes the boiler unable to operate within a heating period use

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