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| 水捕集回收干燥冷却机(DC)首层废热工艺分析 |
| Process analysis of heat recovery from dryer and cooler （DC） first tray by water trapping |
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| DOI： |
| 中文关键词: 水捕集 DC 废热回收 蒸汽消耗 |
| 英文关键词:water trapping DC waste heat recovery steam consumption |
| 基金项目: |
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| 中文摘要: |
| 水捕集回收干燥冷却机（DC）首层废热具有重要的节能和环保意义。DC首层出口废汽温度通常控制在74?℃，水蒸气含量为22.2%左右，相对湿度80.6%。逆流捕集可将废汽中大部分粕沫捕集下来，并将水加热至70.8?℃，通过刮刀过滤器除去粕沫后，热水给进干燥风机的进口冷风加热，可将冷风温度从25?℃加热至64.8?℃。5 000 t/d大豆加工生产线，增加水捕集节能系统每吨大豆可节约蒸汽消耗7.5 kg，对节约总蒸汽消耗具有明显的效果。 |
| 英文摘要: |
| Water trapping to recovery heat from DC first tray has important energy saving and environmental protection significance. The waste vapor from DC first tray with the temperature of 74?℃,in which has 22.2% steam, results in the relative humidity of 80.6%. By countercurrent contacting, most of fines in the waste vapor were washed down, and water could be heated to 70.8?℃. After fines in the water were removed by scraper filter, the hot water was used to heat the cold wind from drying fan inlet from 25?℃ to 64.8?℃. For 5 000 t/d soybean processing line, adding water trapping system could reduce steam consumption of 7.5 kg/t, and the effect of saving total steam comsuption was obvious. |
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