摘要
为了解决压缩沉降区沉淀物进一步浓缩脱水困难等问题,在深锥浓密机基础上开发了偏心公转搅拌浓密机。该设备可对压缩沉降区的沉淀物进行又剪又压处理,实现压缩沉降区沉淀物的深度脱水。实验结果表明,只有在沉淀物浓度达到压缩点后才能对其施加侧向剪切力;偏心公转搅拌对沉淀物施加的侧向剪切力有一个最佳值区域,在最佳值区域内,与同条件下的深锥浓密机相比,偏心公转搅拌浓密机沉降效率高,浓密度高,能耗低,形成的沉淀物更均匀。
In order to compress sediments in the gravity field further, a new thickener with eccentric revolution stirring is developed based on deep cone thickeners. Both effects of stirring and pressuring lead sediments to deep compact in the compression zone. The experimental results show that the shearing function provided by the eccentric revolution stirring can be only input after the sediment concentration reaches the compression point. There is a sediment specific optimal range of shearing forces. Within this range this new kind of the thickener has higher efficiency, better thickening effect, low energy consumption, and gets homogeneous sediments compared with the deep cone thickener.
出处
《煤炭工程》
北大核心
2014年第8期127-130,共4页
Coal Engineering
关键词
浓密机
偏心公转
剪切力
搅拌
压缩沉降
thickener
eccentric revolution
shearing force
stirring
compression zone
