摘要
提出了蒸发末效汁汽废热加热蔗汁的新工艺。通过喷射式直接换热器,用水吸收蒸发末效汁汽的热能,然后采用板式换热器,利用吸收了热能的热水来加热蔗汁。如果把蒸发末效汁汽温度控制到70℃,汁汽可以将水的温度从30℃提升到65℃,热水可将蔗汁的温度从25℃提升到60℃,满足了蔗汁一次加热的温度要求。此外还对新工艺进行了效益分析,对于日榨10 000 t甘蔗的糖厂,一个榨季可节约蔗渣25 229 t/a,即节约燃料费1 261万元人民币。工艺达到了节能减排的效果,且效益显著。
This paper proposes a new technology of using waste heat from the last effect stream of evaporation to heat the cane juice.Using the direct injection heat exchanger,the thermal energy of the last effect steam of evaporation is absorbed by water.And then using the hot water absorbed thermal energy to heating the cane juice through the plate heat exchanger.When the temperature of the last effect stream maintains about 70 ℃,the tempreture of the water can be improved from 35 ℃ to 65 ℃,and the cane juice will be heated from 25 ℃ to 60 ℃ by the hot water.It satisfies the demand of the first heating temperature of the cane juice.In addition,the paper have analyzed the benefit for the new technology.According to a cane mills handling the cane 10 000 t a day,the new technology can save the bagasse 25 229 t/a in a milling season,namely saving the cost of fuel 12.61 millions yuan.The technology is to achieve the effect of energy saving and emission reduction,and the benefits are remarkable.
出处
《食品工业》
北大核心
2011年第9期37-39,共3页
The Food Industry
基金
广西教育厅"省部级项目"(项目编号:00911MS334)
关键词
糖厂
汁汽
加热
蔗汁
工艺
the cane mills
the steam of cane juice
heat
cane juice
technology
