Lower feeding biomass smokeless multi-purpose furnace capable of directly combusting crushed straw

Abstract

The invention discloses a lower feeding biomass smokeless multi-purpose furnace capable of directly combusting crushed straw. The lower feeding biomass smokeless multi-purpose furnace comprises a furnace body, a movable combustion barrel arranged in the furnace body and a lower feeding mechanism supplying materials into the combustion barrel through the bottom of the combustion barrel. A lower feeding spiral feeder is arranged at the bottom of the furnace body. Biomass crushed materials in a storage hopper are spirally conveyed into the combustion barrel from the bottom of the combustion barrel to be combusted, coking generated at the bottom of the combustion barrel after the biomass crushed materials are combusted is crushed along with the bottom feeding process, and the problems that due to coking, oxygen supply is insufficient and combustion is insufficient are solved. An arch breaking device simple in structure is arranged in the storage hopper, and biomass material crushing and leaking are continuous and smooth. The lower feeding biomass smokeless multi-purpose furnace is reasonable in structure and suitable for smokeless combustion of various kinds of biomass fuel, fuel is combusted sufficiently, the thermal efficiency is high, and the smoke pollution is reduced. The lower feeding biomass smokeless multi-purpose furnace can be applied to family cooking, heating of industries and shops and heating of greenhouses and the cultivation industry and can also be used for small industry drying.

Description

technical field [0001] The invention relates to a bottom-feeding biomass smokeless multipurpose furnace capable of directly burning crushed straw. Background technique [0002] The biomass smokeless multi-purpose stove that can directly and automatically burn crushed straw is a stove that uses crushed straw, sawdust, and biomass scraps as fuel. At present, traditional biomass stoves are designed with pressed biomass particles as fuel, and their structures are composed of a bottom ash removal chamber, a middle combustion chamber (furnace gallbladder) and an upper smoke exhaust chamber. Part of the furnace body is composed of a blower for air supply and combustion at the bottom of the furnace body, a fixed grate for supporting fuel is installed between the ash removal chamber and the combustion chamber, and a smoke exhaust chimney is installed in the upper smoke exhaust chamber of the combustion chamber. Biomass fuel They are all manually or mechanically fed into the furnace ...

AI Technical Summary

Problems solved by technology

However, for these biomass automatic combustion stoves, the fuel can only use biomass pellets pressed from pure sawdust, because only pellets made of sawdust produced by pure wood processing will not produce coking during the combustion process, thereby avoiding clogging of the grate Causes the problem of insufficient fuel combustion due to reduced blast volume, but it cannot be applied to the combustion of cheap biomass scraps that are easy to coke, such as straw scraps, sawdust scraps, etc. The existing biomass stoves are all due to the cost of biomass fuel used High, but difficult to be accepted by the majority of users

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