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The rods that were discarded in the field were ground, stirred, and rolled for a few minutes. They turned into biomass blocks and put them into flames. This is the scene that the reporter recently saw in the barbeque grill barn in Caesar Town, Gengma County, Linyi City, the border town of Yunnan. This kind of biomass fuel made from tobacco rods instead of burning coal for flue-cured tobacco leaves not only turns waste into treasure, but also has multiple effects of environmental protection, energy saving and income increase.
Tobacco stalks are wastes in the tobacco cultivation process. The quantity is huge and handling is difficult. In the tobacco production process, the initial baking of tobacco leaves consumes a large amount of coal, which is a high-energy-consuming and high-emissions link. The initial consumption of tobacco leaf per hectare needs to consume 9 tons of coal. During the combustion process, 23.94 tons of carbon dioxide, 63.75 kg of sulfur dioxide, 55.5 kg of nitrogen oxides, and a large amount of dust and difficult-to-treat cinders were emitted.
In 2009, Linyi Tobacco Company cooperated with Kunming Sanyi Bio-Energy Technology Co., Ltd. to carry out the research project of “bio-fuel alternative coal for coal combustion promotion and application†and used the technology independently developed by Kunming Sanyi to produce tobacco rods. The prepared biomass fuel was used for roasting tobacco leaves and was experimentally baked in 3 counties of Lancang, Fengqing and Yunxian in Linyi. The results showed that the biomass fuel is easy to ignite, stable in combustion, and has a rapid temperature rise, and can fully meet the requirements for initial baking of tobacco leaves.
San Xiaoyi, General Manager of Sanyi Company, introduced that the biomass fuel produced from cigarette stems has several advantages: First, energy conservation and emission reduction. According to the use of 600 kilograms of coal per acre for roasting tobacco leaves, 6,000 tons of coal is required for each 10,000 mu of tobacco planted. If all biomass fuels are used for baking, it can achieve a reduction of 7860 tons of carbon dioxide, 21.9 tons of sulfur dioxide, and nitrogen oxidation. It is 19.7 tons and can reduce a lot of dust emissions. The second is to clear the tobacco fields and reduce the impact of pests and diseases. In the past, the method of disposal of tobacco stalks in the ground will bring hidden dangers to the cultivation of tobacco in the coming year. The tobacco stalks will now be cleared in time to reduce the number of pest carriers and reduce the incidence of pests and diseases. The third is to improve quality and effectiveness. Biomass fuel has stable combustion and easy ignition. The temperature can be increased by 6°C-8°C per hour, and the proportion of high-quality tobacco is 7% higher than that of coal-fired baking. Fourth, recycling, no waste. The combustion ash of biomass fuel is not only small in quantity but also of uniform texture, dispersive and crisp, and easy to clean. Moreover, the potassium content is relatively high and can be used as potash fertilizer to partially replace traditional fertilizers. Fifth, increase farmers' income. The company purchases tobacco rods at an amount of 30 yuan per mu for farmers. In 2011, the planting area of ​​tobacco leaf in Linyi City reached 312,000 mu. If all recycled tobacco stalks produce material fuel, an increase of 9.36 million yuan will be available for tobacco farmers.
This year, Sanyi Co., Ltd. undertakes the task of specialized baking for more than 150 intensive barns in Gengma County, Yun County, and Zhenkang County to achieve a complete replacement of the use of biomass fuels for smoke burning with coal. In Yunnan, besides the Caesar Town biomass fuel processing plant to which the reporter arrived, Sanyi has established seven biomass fuel processing plants in the province and has an annual production capacity of 10,000 tons.
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