Solid biomass combustion device and method

Abstract

The invention discloses a solid biomass combustion device and method. The solid biomass combustion device is characterized in that the bottom of a boiler is provided with an air inlet, one end of a chain bed cap extends into the bottom of the boiler and is located above the air inlet, and the boiler is provided with a feeding port for feeding materials to the chain bed cap; and a rolling heat storage shaft is arranged at the bottom of the boiler and located above the chain bed cap, the rolling heat storage shaft is located at a discharging port of the feeding port, and a driving device used for driving the rolling heat storage shaft to rotate is connected to the rolling heat storage shaft. According to the solid biomass combustion device, solid organisms are rolled through the rolling heat storage shaft, so that the solid organisms are flattened and evenly laid on the chain bed cap, the solid organisms are evenly and fully combusted in the boiler, the burn-off rate is high, and the situation that the burn-off rate is poor due to the fact that fuel in a local area is too thick is avoided; and through the preheating effect of the rolling heat storage shaft, it can be avoided that the water content of part of fuel is too high, and stable combustion of the boiler is affected. By means of the solid biomass combustion device, the adverse effect caused by solid biomass combustion at present can be avoided.

Description

technical field [0001] The invention belongs to the field of solid biomass combustion and utilization, and in particular relates to a solid biomass combustion device and method. Background technique [0002] Biomass energy has always been an important energy source for human survival. It ranks fourth in the world's total energy consumption after coal, oil and natural gas, and occupies an important position in the entire energy system. Relevant experts estimate that biomass energy is very likely to become an integral part of the future sustainable energy system. By the middle of the next century, various biomass alternative fuels produced with new technologies will account for more than 40% of the world's total energy consumption. There are three ways to utilize biomass energy: direct combustion, thermochemical conversion and biochemical conversion. At present, the transformation of traditional wood-burning stoves with a thermal efficiency of only about 10% and the promotion...

AI Technical Summary

Problems solved by technology

On the one hand, the chain furnace combustion device has the problem of uneven distribution of solid biomass on the chain, resulting in poor burnout rate, low efficiency, and a large amount of intermediate products polluting the environment

On the other hand, the water content of solid biomass is different, which will also have adverse effects on boiler efficiency and boiler equipment.

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