Burner for biomass fuel

Abstract

The invention discloses a burner for a biomass fuel and belongs to the technical field of renewable energy sources. According to the technical scheme, the burner comprises a feeding motor (1), a slag-removing motor (6) and an inner combustion chamber (8), wherein the feeding motor (1) is used for conveying a biomass solid formed fuel to the inner combustion chamber (8) through a feeding screw (2); a slag-removing device (10) which is connected with the slag-removing motor (6) through a crank (11) is mounted in the inner combustion chamber (8); first inlet air during the igniting, air-heating and burning processes is supplied by a first fan (5); and secondary inlet air is supplied by a secondary fan (4). According to the burner for the biomass fuel provided by the invention, a slag-bonding phenomenon during the burning process of different biomass fuels, such as biomass formed fuel, shredded straws, and sawdust, is effectively avoided by using the slag-removing device (10), the operations of conveying the formed fuel, breaking the slag, deashing, and the like, are realized, the burning efficiency is increased, and the burner for the biomass fuel is suitable for the combustion equipment, such as biomass boilers and hot blast stoves,.

Description

technical field [0001] The invention belongs to the technical field of renewable energy, and is a biomass fuel burner, specifically applied to biomass boilers, hot blast stoves, etc. A burner on the combustion equipment to realize automatic feeding, automatic combustion, automatic slag breaking, and automatic ash cleaning. Background technique [0002] my country is the world's second largest energy producer and consumer. In 2009, my country's primary energy production reached 2.8 billion tons of standard coal, and its total energy consumption was 3.1 billion tons of standard coal. my country is also a country that is very short of fossil energy. Per capita coal resources are about 90t, only 55.4% of the world average; per capita recoverable oil reserves are 2.6t, only 11.1% of the world average; per capita exploitable natural gas is 1074m3, only 4.3% of the world average. The production and consumption of fossil energy has caused serious environmental pollution and ecolog...

AI Technical Summary

Problems solved by technology

[0006] At present, the burners and combustion equipment used for biomass briquette fuel researched in my country can solve the problem of slagging. For example, the biomass pellet fuel burner with the authorization number ZL201010126437.1 adopts a spiral slagging structure in the combustion chamber, which can effectively Solve the slagging in the combustion process, but the burner can be used for small biomass boilers, such as 20KW, for high-power boilers, such as 350KW, 700KW, due to the large diameter of the combustion chamber of the burner (diameter reaches 50cm), and then Using the spiral as the slagging structure cannot effectively solve the slagging problem

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