Biomass burner

Abstract

The invention discloses a biomass burner. The biomass burner comprises a furnace body, a feeding device arranged at the upper portion of the furnace body, an air incoming device arranged at the lowerportion of the furnace body, and a water tank arranged on the top of the furnace body; a feeding opening is formed in the top of the furnace body; the feeding device comprises a feeding bin; a sealingcover is arranged at the top of the feeding bin; a feeding hopper is installed at the lower portion of the feeding bin; the lower end of the feeding hopper inclines towards the furnace body; the tailend of the feeding hopper extends into the furnace body through the feeding opening; a flame nozzle is arranged on the other side, right opposite to the feeding opening, of the upper portion of the furnace body; a steam exhaust pipe is arranged at the top of the water tank; the other end of the steam exhaust pipe is communicated with steam holes in the flame nozzle; the air incoming device comprises an annular air distribution plate which is installed at the lower portion of the interior of the furnace body and surrounds the inner wall face of the furnace body; a sealed annular space formed between the air distribution plate and the inner wall face of the furnace body serves as a primary air duct; and primary air holes are formed in the air distribution plate. The burner is stable in operation in a whole process, free of noise, high in fuel combustion efficiency, free of pollution and suitable for the combustion of all biomass.

Description

technical field [0001] The invention belongs to the technical field of combustion equipment, in particular to a biomass burner, which mainly uses agricultural and forestry waste as fuel, coal can also be used as fuel, and biomass and coal can also be co-combusted. Background technique [0002] Due to the energy shortage and environmental degradation problems caused by the extensive use of fossil fuels, biomass resources have attracted worldwide attention because of their renewable, environmentally friendly and large resources. As a large agricultural country, our country produces about 700 million tons of crop straw every year, and among the resources of firewood and forestry waste, the exploitable amount reaches more than 600 million tons every year. Every year, more than 200 million tons of remaining crop straws that cannot be processed are directly burned in Tianjin, which not only wastes resources, but also causes serious air pollution. [0003] The research and develop...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a biomass burner that is easy to use, high in combustion efficiency, and low in manufacturing cost, aiming at problems such as low thermal efficiency, poor heat transfer, and slagging on the heat exchange surface existing in existing biomass combustion boilers. The burner mainly solves the problems of biomass fuel transportation, boiler heating surface contamination, furnace aerodynamic field balance, waste heat utilization, and efficient gasification combustion from two aspects of boiler design and combustion technology.

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