Particle combustor with dynamically-sealed combustion chambers and automatic feeding, slag disintegrating and ash discharging functions

Abstract

The invention discloses a particle combustor with dynamically-sealed combustion chambers and automatic feeding, slag disintegrating and ash discharging functions. The particle combustor comprises an upper feeding pipe, a lower feeding pipe, an upper shaft with an upper auger, a lower shaft with a lower auger, a stove, stirring and crushing blades and smashing vanes, as well as a horizontal ash discharge pipe and an ash discharge hopper which communicate with each other, wherein the stove comprises an upper combustion chamber and a lower combustion chamber; a fuel inlet and an ash outlet of thelower combustion chamber respectively communicate with the lower feeding pipe and the ash discharge pipe; the blades and the vanes, which are inclined in an ash discharge direction, are secured to the intermediate segment, located in the lower combustion chamber, of the lower shaft; a granular fuel conveyed to the lower combustion chamber is stirred by the blades to support combustion; sintered residues are sequentially broken into ash by the stirring and crushing blades and the smashing vanes; the ash moves forwards to pass through the ash discharge pipe and to dynamically seal the ash outlet; a bottom air inlet and middle side air inlets, formed in the flat bottom surface and symmetrical side elevations of the lower combustion chamber, all face toward the ash outlet; and the upper combustion chamber is densely covered with top straight air inlets which are staggered up and down. The particle combustor can easily disintegrate slag into ash, realizes smooth ash discharge, and is uniform in combustion room temperature and sufficient in oxygen supplementation for combustible gases.

Description

[0001] 【Technical field】 [0002] The invention relates to a combustion chamber dynamic sealing type particle burner with automatic feeding and slag discharge, belonging to the technical field of biomass particle burners. [0003] 【Background technique】 [0004] The vast rural areas in the north, especially the remote mountainous areas, cannot popularize central heating, so they are forced to use electric heating equipment, but the cost of electricity for electric heating equipment is high and uneconomical, and pellet fuel stoves are economical and practical due to the wide and low source of raw materials used for fuel. It is still the most commonly used heating method. [0005] Although the thermal efficiency of pellet fuel furnaces continues to rise and improve, due to the limitation of the fuel itself, the fuel in the furnace will inevitably form slags of different sizes when burning, and the slagging of biomass pellet fuels is even more serious, even if charcoal Pellet fue...

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Problems solved by technology

[0004] The vast rural areas in the north, especially the remote mountainous areas, cannot popularize central heating, so they are forced to use electric heating equipment, but the cost of electricity for electric heating equipment is high and uneconomical, and pellet fuel stoves are economical and practical due to the wide and low source of raw materials used for fuel. Still the most common way of heating

[0005] Although the thermal efficiency of pellet fuel furnaces continues to rise and improve, due to the limitation of the fuel itself, the fuel in the furnace will inevitably form slags of different sizes when burning, and the slagging of biomass pellet fuels is even more serious, even if charcoal Pellet fuel also has a certain degree of slagging. If the slag cannot be effectively crushed, faults such as slag jam will occur after accumulation, which will affect the normal operation of the stove and the ecological environment.

[0006] It is difficult for the pellet furnace to fully burn the fuel, and the unburned gas discharges a lot, wasting fuel, and the combustion products produce a large amount of dust, soot and large residues, which affect indoor air and personal health

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