Biomass furnace with tertiary combustion structure

Abstract

A biomass furnace with a triple-combustion-supporting structure comprises a furnace body, a furnace cavity in the furnace body and an ash hopper, the lower portion of the furnace cavity serves as a combustion chamber, the ash hopper is placed below the combustion chamber, a second-time combustion-supporting liner is installed on the lower portion of the furnace cavity, a third combustion-supporting device is arranged at the upper end of the furnace cavity, an air outlet of an air blower placed below the exterior of the furnace body is divided into two paths, one path leads to the upper portion of the ash hopper through a first-time combustion-supporting air channel, the other path leads to the third-time combustion-supporting device through a second-time combustion-supporting air channel, and meanwhile, the second-time combustion-supporting air channel is communicated with the second-time combustion-supporting liner through a liner air duct. Due to the multi-stage combustion-supporting structure, combustible gas and granular black carbon which are generated by direct combustion of coal or biomass solid fuel can burn completely step by step, black smoke can be eliminated, the heat energy conversion rate of the fuel is improved, and the biomass furnace with the triple-combustion-supporting structure has the advantages of saving fuel cost, protecting the environment and the like.

Description

technical field [0001] The invention relates to a biomass furnace, in particular to a biomass furnace with a three-time combustion-supporting structure. Background technique [0002] Biomass stove is a kind of household cooking or heating equipment that has developed rapidly in recent years. It has changed the heating method of traditional stoves using coal as fuel, and uses all combustible biomass such as straw and straw as fuel. It has open flame combustion and gasification components. It has the advantages of no tar, no black smoke, full combustion, high thermal efficiency, and low smoke emission. It is very suitable for rural households. However, most of the existing biomass stoves do not have any auxiliary combustion device above the hearth, and the air intake is only set at the drawer of the ash hopper, so that the coal or biomass solid fuel lacks enough oxygen to cause insufficient combustion. Moreover, this insufficient combustion produces a large amount of combusti...

AI Technical Summary

Problems solved by technology

However, most of the existing biomass stoves do not have any auxiliary combustion device above the hearth, and the air intake is only set at the drawer of the ash hopper, so that the coal or biomass solid fuel lacks enough oxygen to cause insufficient combustion. Moreover, this insufficient combustion produces a large amount of combustible gas and granular carbon black that are directly discharged, and there is a problem of polluting the environment.

Images