利用LNG冷能粉碎废旧橡胶工艺
Rubber Comminution by Utilizing LNG Cold Energy
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- 引用格式:
-
崔国彪,刘阳,安海燕,陈建新.利用LNG冷能粉碎废旧橡胶工艺[J].天然气与石油,2013,31(2):0.doi:
.Rubber Comminution by Utilizing LNG Cold Energy[J].Natural Gas and Oil,2013,31(2):0.doi:
- DOI:
- 作者:
- 崔国彪1 刘 阳2 安海燕2 陈建新3
- 作者单位:
- 1.西南石油大学研究生院，2.中国石油管道公司长庆输油气分公司，3.西气东输管道销售公司
- 关键词:
- LNG汽化站；冷能利用；橡胶粉碎；HYSYS
LNG gasification station； Cold energy utilization； Rubber comminution； Hysys
- 摘要:
- 中国是世界上最大的橡胶消费国，每年需要粉碎大量的废旧橡胶，目前常用的常温直接切割粉碎和低温深冷粉碎方法在粉碎效果和能耗方面都不理想，而利用LNG冷能粉碎废旧橡胶工艺在满足粉碎效果的同时也大大节省了能耗，具有广阔的市场前景。此工艺利用空气作为中间冷媒，通过回收LNG汽化产生的冷量，对空气进行降温，然后用空气喷洒冷却胶粉。模拟后结果表明：利用LNG冷能粉碎废旧橡胶工艺节能效果显著，制作每吨精细胶粉可降低能耗349.5 kW·h 。
Up to now， there are two kinds of rubber comminution processes： comminuting by direct cutting in normal atmospheric temperature condition and cryogenic comminution and the latter includes liquid nitrogen refrigeration comminution method and air expansion refrigeration comminution method. Compared with the former， the latter has obvious advantages in fine rubber powder production except for huge investment and production costs. The process of utilizing LNG cold energy for waste rubber cryogenic comminution in satellite station is applied rarely in domestic LNG terminals and the technology is relatively scarce. In the technology， using air as a middle cold medium， cold flow generated in LNG vaporization is recovered to cool air and then the cooled air is sprayed to cool rubber powder. Simulation results show that this rubber comminution process has remarkable energy conservation effects and energy consumption of fine rubber powder per ton can be reduced by 349.5kW·h.
