An anti-slagging biomass particle combustion device

Abstract

The invention discloses a slag-bonding resistant biomass particle combustion device which comprises a feeding device, an air supply device and a combustion chamber, wherein the combustion chamber comprises a combustion chamber body; the combustion chamber body comprises a furnace wall and a casing, and refractory material layers are arranged on the inner surfaces of the furnace wall and the casing; the spaces inside the refractory material layers are used as a cavity of the combustion chamber and a dust collecting chamber; an air blower is respectively connected with a primary air duct and a secondary air duct through a tee; the primary air duct is connected with a primary air inlet; the second air duct is connected with a secondary air inlet; a vertical cylindrical first-stage air duct is arranged inside the furnace wall; the secondary air inlet is connected with the first-stage air duct; the first-stage air duct is connected with a plurality of second-stage air ducts; the second-stage air ducts are arranged inside the furnace wall around the cavity of the combustion chamber in a C-shaped manner, and one end of the C shape is closed; the second-stage air ducts are connected with a plurality of L-shaped third-stage air ducts. The slag-bonding resistant biomass particle combustion device has the advantages as follows: continuous automatic combustion of biomass particles is achieved, efficient energy utilization of forestry and agricultural residues is achieved, and the problems that the biomass particle is too high in content of volatile substances and is easy to coke to bond slag are solved.

Description

technical field [0001] The invention belongs to a combustion method and device of biomass briquette fuel, in particular to an anti-slagging biomass particle combustion device. Background technique [0002] In recent decades, with the increase of the concentration of greenhouse gases in the atmosphere, global warming, melting of glaciers and frequent occurrence of various disasters, people have realized the importance of clean energy, developed renewable clean energy, reduced coal, oil, The consumption of fossil energy such as gas can achieve the purpose of protecting the environment. In my country, various agricultural and forestry wastes equivalent to 700 million tons of standard coal are wasted every year, and making full use of agricultural and forestry wastes to replace fossil energy has become an important issue. Since most of the biomass is agricultural and forestry waste such as straws and shrubs, the content of Na, K, Si and other volatile substances is relatively h...

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Problems solved by technology

Since most of the biomass is agricultural and forestry waste such as straws and shrubs, the content of Na, K, Si and other volatile substances is relatively high, and impurities such as dust and sand are mixed in the process of pellet production, and the content of ash during combustion is high. And the coking and slagging are serious, which leads to the blockage of the burner. Therefore, the currently used biomass pellet burner cannot achieve efficient, automatic and continuous combustion

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