Cyclone centrifugal deashing biomass granular fuel burner

Abstract

The invention discloses a cyclone centrifugal deashing biomass granular fuel burner, which comprises two combustion chambers, namely a primary combustion chamber and a swirl combustion chamber. The two chambers are in tangential connection through a wedge type flame flow channel. The primary combustion chamber is a cavity with a tapered bottom and a columnar upper part, a combustion cup at the bottom is communicated with a bin through a spiral conveyer, and the upper end is sealed. The swirl combustion chamber is also a cavity with a tapered bottom and a columnar upper part, its upper part is a high temperature fire outlet, and the bottom is connected to an ash storage chamber. In the invention, the ash generated at the upper part of the combustion cup is blown by powerful first and secondary wind. After entering the swirl combustion chamber, the flame forms a high speed rotating flame, and the ash is thrown away by a centrifugal force. By virtue of the perfect combination of multilevel air distribution and a burner structure, the burner successfully transfers the ash out of the primary combustion chamber and makes the ash fall into an ash storage chamber, thus omitting a special deashing mechanism, and realizing continuous automatic combustion of high ash content biomass fuel and stable and reliable working performance.

Description

technical field [0001] The invention relates to a burner, in particular to a burner for ash-rich biomass particles. Background technique [0002] In recent decades, with the increase of greenhouse gas concentration in the atmosphere, global warming, melting glaciers and frequent occurrence of various disasters, people have realized the importance of clean energy and started research on efficient clean renewable energy. However, the focus of global research is pure fuel, while in my country, various agricultural and forestry wastes equivalent to 700 million tons of standard coal are wasted every year, and agricultural and forestry wastes are high-ash biomass. Therefore, the study of multi-ash biomass fuel has become an important topic. Since most of the biomass is agricultural and forestry waste such as straw and shrubs, the Na, K, Si and other volatile substances are dozens of times higher than pure wood chips, and impurities such as dust and sand are mixed in the pellet pr...

AI Technical Summary

Problems solved by technology

Since most of the biomass is agricultural and forestry waste such as straw and shrubs, Na, K, Si and other volatile substances are dozens of times higher than pure wood chips, and impurities such as dust and sand are mixed in the pellet production process, so The content of ash and slag during combustion is high, and coking and slagging are serious, which can easily lead to burner blockage

Therefore, the currently used burners cannot achieve high-efficiency, automatic and continuous combustion

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