Biomass direct-fired furnace

Abstract

The invention provides a biomass direct-fired furnace which relates to a domestic furnace, comprising a shell, a furnace body and a fan. The fan is correspondingly connected with a primary air chamber and a secondary air chamber through a primary air delivery pipe and a secondary air delivery pipe; the upper end of the furnace body is provided with a chimney; the inner side wall of the furnace body is fixedly connected with an inner cylinder in which a charging cylinder is placed; a secondary air distributor is arranged above the charging cylinder; the secondary air distributor has a secondary air chamber air outlet for communicating the second air distributor; and the wall of the charging cylinder is provided with a charging cylinder air inlet for communicating the primary air chamber. The invention adopts a direct-fired manner and has the characteristics of simple structure, easy ignition, fast firing, good fire regulation property, simple operation, strong fire, high thermal efficiency, safety and sanitation, and sustainable combustion; and the like; the invention does not have special requirement on the shapes of the fuels; and the applicable fuels comprise various shaped fuels, firewood and agricultural byproducts such as chaff, lotus seed pot, straw, corncob, and the like, therefore, the invention is particularly suitable for the rural residents of China.

Description

Technical field [0001] The invention relates to a solid fuel household stove, in particular to a stove that directly centrally burns biomass. Background technique [0002] my country is extremely rich in biomass energy. With the development of agriculture and forestry, biomass resources will increase. The main problem of the current use of biomass energy is that the energy utilization rate is very low and the use is unreasonable. For example, traditional earth stoves have been used to burn firewood and straw in rural areas. The burning efficiency is low and the labor intensity is high, which also causes damage to the environment. [0003] In recent years, some household or small biomass gasifier devices have appeared. However, the technology is not mature enough. It often burns through during use. The burning time is short, the burning cannot be sustained, the gas supply is impure, and the burning is not Adequate, low thermal efficiency, long start-up time of cold furnace, large fu...

AI Technical Summary

Problems solved by technology

[0002] my country is extremely rich in biomass energy, and with the development of agriculture and forestry, there will be more and more biomass resources. The main problem in the current use of biomass energy is that the energy utilization rate is very low, and the use is very unreasonable, resulting in resource loss. For example, traditional earthen stoves have been used in rural areas to burn firewood and straw, which has low combustion efficiency and high labor intensity, and also causes damage to the environment.

[0003] In recent years, some household or small-scale biomass gasifier devices have appeared. However, this technology is not mature enough. It often occurs burn-through phenomenon during use, the combustion time is short, cannot continue to burn, the gas supply is impure, and the combustion is not good. Adequate, low thermal efficiency, long start-up time of cold furnace, large fuel consumption, poor energy saving effect, especially the peculiar smell and tar generated during the combustion process, which seriously pollute the environment and damage human health

China Patent No. 200720123853.X discloses a blast type domestic biomass semi-gasifier, although its combustion performance has been improved, but due to the unreasonable structure, the combustion is insufficient, the thermal efficiency is not high, and the smoke generated is relatively large , the furnace drum is fixed on the furnace body, and it is inconvenient to charge, especially for loose fuels, such as wheat straw, straw, etc. For adding smaller particles and other debris

Moreover, its air intake method is unreasonable, the operation of one and two air intakes is not easy to master, and it is inconvenient for users to use

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