Small-sized biomass chopped-material direct-fired water boiler

Abstract

The invention provides a small-sized biomass chopped-material direct-fired water boiler. The water boiler comprises an automatic feeding mechanism and a boiler body, wherein the automatic feeding mechanism consists of a loading box, a feed box, two horizontally placed ejecting rollers and a spiral auger, a draw plate is arranged at the bottom of the loading box, the feed box is positioned below the loading box, the ejecting rollers are mounted in the feed box and provided with radiant pick teeth, and the spiral auger of which the output end is communicated with a feed inlet of the boiler body through a feeding pipe is positioned below the ejecting rollers; and the boiler body consists of a dust collection room, a primary air inlet pipe, a primary air room positioned above the dust collection room and communicated with the primary air inlet pipe, a secondary air inlet pipe, a flue gas steering plate, a secondary air distribution pipe positioned above the primary air room and communicated with the secondary air inlet pipe, a smoke exhaust pipe arranged at the top of a hearth, a flue gas entrained flow air inlet pipe positioned on the side wall of the smoke exhaust pipe and a water jacket on the outer wall of the hearth. The small-sized biomass chopped-material direct-fired water boiler has the advantages of simple structure, low fuel and running costs, cleanliness and convenience in use and high heat efficiency, and is suitable for heating, bathing and the like in wide rural-urban fringe zones and small towns.

Description

technical field [0001] The invention provides a small direct-fired hot water boiler with biomass scraps, which belongs to the technical field of biomass combustion equipment. Background technique [0002] At present, the agricultural and forestry by-product biomass in the vast urban-rural fringe areas and small towns in China is often burned as waste, and urban garden waste is also treated as garbage, which not only wastes energy, but also causes environmental pollution. And these areas have a lot of small heating needs. The economical, clean, flexible and convenient biomass direct combustion heating technology is one of the effective ways to solve the in-situ biomass incineration in our country. [0003] The main problems of biomass direct combustion heating in my country are as follows: [0004] 1. The cost of biomass collection, transportation and storage is high in large-scale applications, and various technical problems such as contamination and corrosion of heating s...

AI Technical Summary

Problems solved by technology

Due to the high energy consumption and rapid equipment wear and tear in the preparation process of biomass briquette fuel, the cost of boiler fuel is high

Although foreign (Treco's green Heat, Be Green in the UK, Hurst boiler, Green woodUSA in the United States) domestic small-scale heating boilers are mostly pellet fuels with high thermal efficiency, but due to different economic conditions and natural environments, it is difficult to promote such boilers in my country at present. application

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