Downdraft biomass gasification combustion cooking and heating furnace

Abstract

Provided is a downdraft biomass gasification combustion cooking and heating furnace. A furnace shell is arranged on a base, a feed port is formed in the upper surface of the furnace shell, a primary air chamber, a combustion chamber, a smoke channel, an ash discharge chamber and a cooking stove are arranged in the furnace shell, a lower stove ring is arranged between the primary air chamber and the combustion chamber, and a heat exchanger is arranged in the smoke channel. The downdraft biomass gasification combustion cooking and heating furnace is characterized in that an inclined gasification chamber communicated with an inlet of the primary air chamber is arranged on the upper portion inside the furnace shell, a V-shaped water channel is formed between the gasification chamber and the combustion chamber, a combined grate formed by an inclined fixed grate and a movable grate is arranged in the primary air chamber, an oxygen enrichment ring is arranged on the lower stove ring, a secondary air chamber is formed by a cavity between the lower stove ring and the oxygen enrichment ring, and an oxygen enrichment pipe is arranged on the lower stove ring. The downdraft biomass gasification combustion cooking and heating furnace has the advantages that the downdraft biomass gasification combustion cooking and heating furnace is low in PM2.5, sulfur dioxide and oxide emission index, free of tar, free of ash escape, smokeless, wide in fuel application range, high in thermal efficiency, long in hot standby time, free of reignition, low in fault rate and suitable for rural families.

Description

technical field [0001] The invention relates to a biomass boiler, in particular to a downdraft gasification and burning biomass cooking and heating furnace. Background technique [0002] Due to the vast land and large population of our country, it is impossible for conventional energy to fully meet the growing needs of the vast rural areas, and because various international conventions on environmental issues are being formulated to limit the emission of greenhouse gases such as CO2. Very unfavorable. At present, my country is paying more and more attention to the development and utilization of biomass energy, and the state and local governments at all levels have increased their support, which has brought great benefits to the development of biomass briquette fuel and its processing equipment, biomass stoves and boiler industries. Here comes the opportunity. Therefore, based on the existing biomass resources in rural areas, research on new conversion technologies and devel...

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Problems solved by technology

Layer-fired grate mechanical combustion stoves have the advantages of a high degree of automation, but the disadvantages are inflexible operation, high power consumption, high quality requirements for biomass fuels, and a smal

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