双层对向正反燃烧单体供热技术在烤烟烘烤中的应用研究
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摘要
为提高烤烟烘烤中燃料利用率,降低烘烤成本,减少环境污染,研究采用1个供热炉设上下2个炉膛,实现正向和反向同时对向燃烧,对比研究了双层对向正反燃烧单体供热设备和普通加热设备烤房烤烟烘烤性能。煤的燃烧充分,传统烟气中所含CO、CH4、碳粉尘等可燃物能得到充分、高效燃烧及利用。空载测试升温速率60℃/h,比普通烤房提高34℃;烘烤实载时,各阶段实测温湿度与目标温湿度吻合度高,完全能满足烘烤工艺的控制要求。双层对向正反燃烧单体供热设备烤房平均每千克干烟耗煤量、耗电量、综合能耗成本分别比普通烤房减少0.31kg、0.05kWh和0.33元,降幅分别为17.73%、14.36%和17.46%;烘烤操作等日常用工成本较普通供热设备少0.52元,降幅43.93%,且对烟叶烘烤质量无明显影响。双层对向正反燃烧单体供热设备升温速度快,平面温度均匀,烘烤过程中温湿度控制精准,能有效降低烘烤能耗和用工成本。
The purpose of this study was to improve fuel efficiency, reduce curing costs and reduceenvironmental pollution of flue-cured tobacco bulk curing. Compared with the bulk curing using commonheating equipment, the comparative study of flue-cured tobacco baking performance with efficiency heatingequipment was developed. The new heating equipment was the double monomer heating technology curingbarn with positive and negative combustion way. The results showed that using a heating furnace with up anddown hearth, forward and reverse burning at the same time to achieve the combustion of coal burning morefully. CO, CH4, carbon dust and other combustible materials of conventional flue gas contained can be fully,efficient combustion and utilization. The temperature raising speed of idling test was 60℃/h, it was 34℃ higherthan that of ordinary curing barn. When the system baking real load, the match degree of measured temperatureand humidity is high with the target temperature and humidity in different stages and it can completely meetthe control requirements of baking technology. Double heating curing barn with the positive and negativecombustion monomer average coal consumption, power consumption and comprehensive energy consumption costs of per kilogram dry tobacco reduce 0.31 kg, 0.05 kWh and 0.33 yuan, and the decline was 17.73%,14.36% and 17.46% than ordinary curing barn, respectively. The baking operation and other daily labor costsper kilogram dry tobacco was less than ordinary heating equipment such as 0.52 yuan, fell 43.93%, and nosignificant negative effect on the quality of tobacco curing. The double monomer heating technology withpositive and negative combustion way can improve heating speed and plane temperature uniformity, the bakingtemperature and humidity control in the process was precision. This way can effectively reduce the energyconsumptionand labor costs of tobacco-curing system.
The purpose of this study was to improve fuel efficiency, reduce curing costs and reduceenvironmental pollution of flue-cured tobacco bulk curing. Compared with the bulk curing using commonheating equipment, the comparative study of flue-cured tobacco baking performance with efficiency heatingequipment was developed. The new heating equipment was the double monomer heating technology curingbarn with positive and negative combustion way. The results showed that using a heating furnace with up anddown hearth, forward and reverse burning at the same time to achieve the combustion of coal burning morefully. CO, CH4, carbon dust and other combustible materials of conventional flue gas contained can be fully,efficient combustion and utilization. The temperature raising speed of idling test was 60℃/h, it was 34℃ higherthan that of ordinary curing barn. When the system baking real load, the match degree of measured temperatureand humidity is high with the target temperature and humidity in different stages and it can completely meetthe control requirements of baking technology. Double heating curing barn with the positive and negativecombustion monomer average coal consumption, power consumption and comprehensive energy consumption costs of per kilogram dry tobacco reduce 0.31 kg, 0.05 kWh and 0.33 yuan, and the decline was 17.73%,14.36% and 17.46% than ordinary curing barn, respectively. The baking operation and other daily labor costsper kilogram dry tobacco was less than ordinary heating equipment such as 0.52 yuan, fell 43.93%, and nosignificant negative effect on the quality of tobacco curing. The double monomer heating technology withpositive and negative combustion way can improve heating speed and plane temperature uniformity, the bakingtemperature and humidity control in the process was precision. This way can effectively reduce the energyconsumptionand labor costs of tobacco-curing system.
引文
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[14]谢德平,程仲记,李怀功,等.烤烟气流平移步进型连续化烤房研究[J].烟草科技,2000(4):39-41.
[15]邓勇.不同烤房类型的烟草烘制效果研究[D].长沙:湖南农业大学,2012.
[2]马文姝,白凤臣.小型锅炉的双向燃烧技术[J].应用能源技术,2003(4):16.
[3]宫长荣,潘建斌,宋朝鹏.中国烟叶烘烤设备的演变与研究进展[J].烟草科技,2005(11):34-37.
[4]李志民,罗会龙,钟浩,等.烟叶密集烤房供热设备分析比较及发展方向[J].煤气与热力,2011,7(31):12-14.
[5]詹军,樊军辉,宋朝鹏,等.密集烤房研究进展与展望[J].南方农业学报,2011(11):1406-1411.
[6]王怀珠.烤烟集约化烘烤的思考[J].耕作与栽培,2009(4):52-53,55.
[7]孙福山,谭经勋.烤烟烘烤研究进展简况[J].中国烟草,1992(4):33-36.
[8]马正钧,袁志永,尹辅印,等.烤烟烘烤节能增质技术研究应用[J].河南农业科学,1993(4):26-35.
[9]安晶.一种新型的环保型正反双向燃烧锅炉[J].节能技术,2004,5(22):22-23.
[10]王建安,刘国顺,杜绍明,等.采收时间和烘烤设备对烤烟品质的影响[J].江西农业大学学报,2010(6):1121-1126.
[11]张汝坤,章龙生,谢昆或.烤烟烘烤技术及其设备的研制[J].农机化研究,2002(1):95-96.
[12]张艳平,方文熙.烤烟房的现状与发展[A].福建省农业工程学会.福建省农业工程学会2006年学术年会论文集[C].福建省农业工程学会,2006:3.
[13]王建安,刘国顺.生物质燃烧锅炉热水集中供热烤烟设备的研制及效果分析[J].中国烟草学报,2012(6):32-37.
[14]谢德平,程仲记,李怀功,等.烤烟气流平移步进型连续化烤房研究[J].烟草科技,2000(4):39-41.
[15]邓勇.不同烤房类型的烟草烘制效果研究[D].长沙:湖南农业大学,2012.