Biomass fuel combustion and gasification integrated furnace for flue-cured tobacco

Abstract

The invention relates to a biomass fuel combustion and gasification integrated furnace for flue-cured tobaccos. The biomass fuel combustion and gasification integrated furnace comprises a fuel combustion and gasification device, a gas combustion device and a heat dissipation device. Biomass fuel is combusted and gasified in a furnace hearth. The gasified gas is combusted again. Finally, heat is dissipated to a backing room through the heat dissipation device and used for baking and modifying the flue-cured tobaccos. Accordingly, heat energy stored in the biomass fuel is utilized fully. The purposes of saving energy and emissions, reducing manpower and cost, baking the flue-cured tobaccos in an environment-friendly mode and increasing benefits are achieved finally.

Description

Technical field: [0001] The invention belongs to the technical field of tobacco preparation and drying equipment, and in particular relates to a biomass fuel combustion and gasification integrated furnace for flue-cured tobacco. Background technique: [0002] The conditioning and drying of tobacco leaves is an extremely energy-intensive agricultural economic activity. In recent years, with the frequent occurrence of severe smog in northern China, the air pollution problem caused by the traditional way of curing tobacco leaves by burning coal for heating has become more prominent. The tobacco industry actively responds to the government's emission reduction policies, adopts clean energy to develop a low-carbon economy and develops green industry technologies. [0003] The technology of producing briquette fuel by mechanical extrusion using agricultural and forestry waste as the main raw material is basically mature in China and has gradually entered the stage of promotion an...

AI Technical Summary

Problems solved by technology

Usually, the biomass briquette fuel is directly burned in the coal-fired furnace to provide the heat of baking. Although it can improve the quality of the tobacco leaves, the low volume density leads to frequent addition of fuel, which is easy to increase the labor of the tobacco farmers. In addition, The generation of a large amount of tar in the combustion will accelerate the aging of the steel cooling pipe and the accumulation of flying dust in the pipe will affect the heat dissipation

In order to change this direct-fired heating method, the pyrolysis gasification baking equipment developed by Xiang Yuhua and others to prepare flammable gas from recycled hydrocarbon fuels has achieved high fuel utilization and accurate temperature control. ; There are also researchers who use biomass-specific flue-cured tobacco furnaces for tobacco leaf curing, but the literature does not specifically explain the furnace structure and combustion principles; The gasification gas is transported to the furnace of the curing room for combustion, and the application of biomass gasification gas in tobacco leaf curing has been realized. Due to the limitation of planting scale and equipment price and other factors, it has not been widely promoted in the field of tobacco curing

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