Large biomass boiler

Abstract

The invention discloses a large biomass boiler which comprises a boiler body. The large biomass boiler further comprises a hearth, a boiler circle, an ash discharge device, an ash collection box, a stock bin, a spiral feeding device, a waste heat recycling chamber, a waste heat water tank, a first smoke dust filter device, a second smoke dust filter device, a first fan, a second fan, a third fan and a controller which are matched with the boiler body and assembled into a whole. A fire stop ring is arranged above the hearth and located below the boiler circle, a fire grate is arranged inside the hearth, and the lower end of the hearth is provided with an ash discharge hopper. Smoke residual heat is utilized more sufficiently, the waste heat utilization efficiency is improved, the efficiencyis high, energy is saved, waste gas is exhausted after being filtered to reach standards, environmental protection is better, fuel ignition time is shorter, ash removal operation can be automaticallycompleted, manual treatment is not needed, the working efficiency is high, biomass fuel combustion is more sufficient, and combustion time is longer.

Description

technical field [0001] The invention relates to the technical field of stoves, in particular to a large-scale biomass stove. Background technique [0002] With the national project of returning farmland to forests, new rural construction projects in various places, earthquake relief projects, the project of reducing fluorine to stoves implemented by the Ministry of Health, the "one stove, one stove" warming project of the Ministry of Agriculture, and the inclusion of biomass stoves in agricultural machinery subsidies in various places Projects, the pilot project of the Ministry of Construction's new rural warming project, etc., have promoted the development of biomass stoves. The number of biomass cooking stoves and cooking stoves purchased through bidding has increased year by year. The biomass used in winter in the north Heating stoves and cooking heating stoves are also subsidized in some places, and pilot demonstrations are carried out. Biomass cooking stoves use the pri...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a large-scale biomass stove, which solves the problem of low waste heat utilization rate of biomass stoves, resulting in a large amount of waste of heat energy, environmental pollution caused by smoke and dust emissions, insufficient combustion of biomass fuels, and long ignition time , the ash in the furnace needs to be manually cleaned by the staff, which is time-consuming and labor-intensive, and the work efficiency is low

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