Biomass semi-gasification furnace

Abstract

The invention relates to a biomass semi-gasification furnace which comprises a main furnace, an auxiliary furnace, a hot water bucket and an exhaust passage, wherein the main furnace comprises a furnace cavity consisting of a furnace core, a grate, a fire converging cover and a feeding hole and an oxygenating chamber consisting of an oxygenating outer housing, the fire converging cover, an oxygenating inner housing and an oxygenating clapboard; an oxygenating pipe supplies oxygen to the oxygenating chamber; the first combustion is performed in the furnace cavity, and the second combustion is performed at a groove part of the fire converging cover; the top of the oxygenating inner housing is connected with an ignition dish-shaped ring and an ignition disc; when a tapered bottom pan or a saucepan is in use, the external walls of the ignition dish-shaped ring and the ignition disc and a clapboard of the furnace body form a heating chamber; the top end of the auxiliary furnace is provided with a cover board or the ignition dish-shaped ring or the ignition disc and the bottom is provided with a heat transfer cavity communicated with the heating chamber. The furnace has the scheme that when heating food or heat preservation, afterheat is communicated with a heat-exchanging chamber arranged at the periphery of the hot water bucket by the exhaust passage so as to heat cold water, and soot is discharged. The furnace overcomes the deficiencies that the combustion waste is serious, the price of the fuel of the earth furnace is high, the secondary combustion after secondary oxygenating of the biomass semi-gasification furnace cannot be controlled and the heat dissipation is severe in the traditional earth furnace, and is suitable for the update of the traditional furnace in vast rural areas.

Description

technical field [0001] The invention relates to a biomass semi-gasifier. Background technique [0002] At present, traditional earthen stoves and coal stoves are widely used in rural areas of our country to heat water and cook food. Traditional earthen stoves are a serious waste of firewood, and the price of coal for coal stoves is getting higher and higher. With the country's emphasis on energy conservation and emission reduction, biomass The semi-gasification furnace has a broad development prospect. At present, the biomass semi-gasification furnace sold on the market cannot control the secondary oxygen supplementation and re-combustion, and the heat dissipation is very serious. The main stove combustion is not much different from the traditional earthen stove, and the thermal efficiency is low. High-efficiency and low-emissions are only in name, but they cannot achieve the effect of high-efficiency energy-saving and emission-reduction. Contents of the invention [0003...

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Problems solved by technology

[0002] At present, traditional earthen stoves and coal stoves are widely used in rural areas of our country to heat water and cook food. Traditional earthen stoves are a serious waste of firewood, and coal prices for coal stoves are getting higher and higher. With the country's emphasis on energy conservation and emission reduction, biomass The semi-gasification furnace has a broad development prospect. Now, the biomass semi-gasification furnace sold on the market cannot control the secondary oxygen supplementation and re-combustion, and the heat dissipation is very serious. The main stove combustion is not much different from the traditional earthen stove, and the thermal efficiency is low. High-efficiency and low-emissions are only in name, but they cannot achieve the effect of high-efficiency energy-saving and emission-reduction.

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