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Xiang Y.,Panzhihua Academy of agriculture and Forestry science of Sichuan Province | Zhang Z.,Panzhihua City Company Tobacco Company of Sichuan Province | Li H.,Panzhihua Academy of agriculture and Forestry science of Sichuan Province | Luo G.,Panzhihua Academy of agriculture and Forestry science of Sichuan Province | And 4 more authors.
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | Year: 2014

To effectively improve the intensive curing barn heating system heat efficiency, reduce the fuel consumption and develop clean energy, we developed a hydrocarbon fuel baking equipment. Compared with the existing density curing barn heating system (barn B), the hydrocarbon fuel baking equipment (barn A) adds heat collector (heat chamber, water tank) to increase the efficiency of the cooling and heat storage. And the heat collector composed of detachable connection and replacement of combustion furnace, radiator pipe and waste heat recovery device, which is feasible to actual installation. Under the conditions of loading tobacco and three-baking process in the two equipments, coal and self-made fuel rod were used as fuels, respectively. Furnace temperature measurement positions were near the top of the furnace at the left, middle and right at the same height. Results showed that barn A reached the highest temperature (888.5°C) in 75 min, and barn B reached the highest temperature (712.7°C) in 105 min. And ash barn proportion (36%) in barn A was less than barn B (43%). The heating chamber in barn A reached the highest temperature (87.1°C) in 30 min, and maintained above 80°C for 45 min, whereas the heating chamber in barn B reached the highest temperature (83.2°C) in 15 min, and maintained above 80°C for 15 min. Heating rate in tobacco loading chamber was faster in barn A with consuming 78 min from 18°C to 68°C. Compared with intensive curing barn heating system, the equipment can reduce 20.4%-36.4% energy consumption of per kilogram dry cigarettes. This research indicates hydrocarbon organic fuel baking equipment has advantages of high fuel efficiency, heating up fast, flexible temperature control. Source

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