Experiment of Cryogenic Grinding of Discarded Printed Circuit Board
Cryogenic grinding of Printed Circuit Board will bring less pollution,reduce energy costs,smaller particles,regular particle size,efficient process,separation various materials due to different fracture toughness.Systemic studies of recycling discarded Printed Circuit Board (PCB) by low-temperature modification and cryogenic grinding have been made in this paper.Firstly test mechanical property of PCB at different low-temperature,including impact strength,flexural strength,and shear strength.Do experiment on the power consumption of different cooling temperature,The results show that the average power consumption is lower between -30℃ to -60℃ and the average power is decrease in evidence at -30℃.Use ZKB type double roll shear crusher to crush PCB to 20mm×20mm particle size,in a temperature range of -10 ～ -30℃ Used R type mill to grind sample to minus 3mm under different working condition,the average power consumption is decrease in evidence from -10 ℃ to -30 ℃,power consumption is the lest at rotational speed is 1180rpm.
Cryogenic grinding PCB Discarded
C.H.Zhou M.X.Lu
Department of Environmental Engineering,Beijing Institute of Petrochemical Technology,Beijing,China School of Chemical and Environmental Engineering,China University of Mining and Technology,Beijing,C
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
3998-4002
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）