(a. Energy Conservation and Engineering Technology Research Institute; b. State Key Laboratory of High Efficient Mining and Clean Utilization of Coal Resources; c. National Energy Technology and Equipment Laboratory of Coal Utilization and Emission Control, China Coal Research Institute, Beijing 100013, China)
Abstract： To solve the selection problem of the fly ash conveying system in a certain project, the pneumatic conveying systems by silo pump and roots blower were compared and analyzed in items of equipment investment and power consumption. The results show that for 6 fly ash unloading ports with maximum discharge of 911 kg/h per port and the conveying system with conveying distance of 200 m, the equipment investment of the conveying system by silo pump is 332 200 yuan more than that by roots blower. The former can save running electricity charges of 142 000 yuan per year. The excess investments static investment period is 2.34 a.
Keywords: powder; pneumatic conveying; silo pump; blower
中图分类号：TK284.4 文献标志码：A
文章编号：1008-5548(2015)03-0100-03
DOI:10.13732/j.issn.1008-5548.2015.03.024
收稿日期：2014-06-05， 修回日期：2014-06-30，在线出版时间：2015-06-24。
基金项目：中国煤炭科工集团有限公司科技创新基金青年基金项目，编号：2013QN035；煤炭科学技术研究院科技发展基金项目，编号：2014CX03。
第一作者简介：张鑫 （1979—）， 男， 硕士， 助理研究员， 研究方向为燃料与燃烧及工业用热工设备。 电话： 010-84264331， 18611808863， E-mail ：zhangxinbricc@foxmail.com。
