Multi-ash biomass granular fuel combustor

Abstract

The invention discloses a multi-ash biomass granular fuel combustor. The primary structure is that a combustion-chamber is flat bottom elongated cavity; the rear upper part of the cavity is a feed port opposite to a material feeder; cavity front end is an opening; a piston driven by the ash pushing motor is mounted at the rear end in the combustion-chamber; the piston bottom surface and two sidesare matched with the flat bottom material bed in the combustion-chamber and the adjacent inner two sides; a wind housing is covered on the combustion-chamber; a primary wind hole is disposed at two lateral faces of the combustion-chamber; a backfire board is horizontally arranged in the combustion-chamber; a row of secondary wind holes are transversely arranged on the backboard of the combustion-chamber and a tertiary wind hole is disposed on the wind housing. The invention matches the piston reciprocating movement and multi-stage air distribution, solves the problems of high content of multi-ash biomass volatile matter, coking and slagging, air duct block and slagoff. The high ash biomass fuel combusts continuously and automatically.

Description

technical field [0001] The invention relates to a burner, in particular to a burner with ash-rich biomass particle fuel. Background technique [0002] In recent decades, with the increase of the concentration of greenhouse gases 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 content of Na, K, Si and other volatile substances in it is dozens of times higher than that of pure wood chips, and impurities such as du...

AI Technical Summary

Problems solved by technology

Since most of the biomass is agricultural and forestry waste such as straw and shrubs, the content of Na, K, Si and other volatile substances in it is dozens of times higher than that of pure wood chips, and impurities such as dust and sand are mixed in the pellet production process, so The content of ash and slag in the combustion is high, and the coking and slagging are serious, which leads to the blockage of the burner. Therefore, the currently used burners cannot achieve efficient, automatic and continuous combustion

Images