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当前位置: 首页 > 文章 > 卧式喷淋薄膜蒸发装置浓缩草浆黑液的试验研究 南京林业大学学报(自然科学版) 2005,29 (3) 69-72
Position: Home > Articles > A Study on Technology of Horizontal Spraying-film Evaporation Applied to the Concentration of Non-wood Black Liquor Journal of Nanjing Forestry University(Natural Sciences Edition) 2005,29 (3) 69-72

卧式喷淋薄膜蒸发装置浓缩草浆黑液的试验研究

作  者：
王占军;钟运猷;唐金鑫;王宗濂;房桂干
单  位：
中国林业科学研究院林产化学工业研究所
关键词：
蒸发;黑液;草浆;传热
摘  要：
针对草浆黑液在蒸发浓缩过程中P1 传热效能低,且易于结垢,常规蒸发器难以经济合理地运行的特点,设计出了新型卧式喷淋降膜蒸发装置。试验结果表明:该装置能够实现高效空间蒸发,具有蒸发强度大、传热系数高、不易结垢、除垢容易等优点,对高粘度草浆黑液蒸发强度平均达到28~45 kg/(m2·h)。
译  名：
A Study on Technology of Horizontal Spraying-film Evaporation Applied to the Concentration of Non-wood Black Liquor
作  者：
WANG Zhan-jun,ZHONG Yun-you,TANG Jin-xin,WANG Zong-lian,FANG Gui-gan (Institute of Chemical Industry of Forest Products,CAF,Nanjing 210042,China)
关键词：
Evaporation;Black liquor;Straw pulp;Heat-transfer
摘  要：
The study on characteristics of black liquor from non-wood fiber chemical pulping process shows that it has high content of ash(silicates),pentoses and high viscosity which will influence the normal evaporation operation.The heat transfer capacity of non-wood pulping black liquor is poor and easy to form scales.At present,there are no normal evaporation installations which can be operated economically. An new type of evaporator is designed and installed both in the pilot scale and industrial scale.It proves that,due to presenting of effective evaporating space,the new designed horizontal spraying-film evaporator has extremely a high evaporating capacity,high heat-transfer coefficient, and easy foaming and scaling working mass as non-wood black liquor. etc.The mean of evaporation intensity for black liquor(from wheat straw pulping process) could reach up to 28~ 45kg/(m~2·h) .

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