富钴结壳振动剥离破碎的实验研究

来源期刊:中南大学学报(自然科学版)2008年第2期

论文作者:邹湘伏 何清华 郭勇 朱建新

文章页码:327 - 327

关键词:钴结壳;振动;剥离;破碎;螺旋滚筒

Key words:cobalt-rich crusts; vibration; removing; breaking; spiral cutting roller

摘    要:

在自行设计制造的矿岩振动剥离破碎试验台上,引入振动加载环节,对钴结壳的剥离破碎关键技术进行实验研究,并对模拟钴结壳在有、无振动加载2种情况下的剥离破碎进行正交对比实验。研究结果表明,通过正交对比实验发现振动加载降低了钴结壳的破碎“能耗”,获得主要振动参数影响钴结壳剥离破碎的规律,得到实验螺旋滚筒振动剥离破碎钴结壳的一组最优加载参数:中偏心块加载,刀具安装角度为45°,振动频率为50 Hz,平台移动速度为0.6 m/min,滚筒转速为25 r/min;施加合适的振动载荷,螺旋滚筒切削破碎时的平均驱动油压下降22.9%,振动剥离破碎能有效地降低螺旋滚筒切削能耗。

Abstract:

The key technology of removing and breaking of ocean cobalt-rich crusts was studied by experimentations with or without vibration loading on the vibration breaking experiment platform made by ourselves. The results show that the breaking energy consumption is reduced further. The rules of how the main vibration cutting parameters impact the removing and breaking of the crusts are obtained. A set of optimized vibration removing and breaking parameters are discovered through orthogonal experiments: middle eccentricity piece loading, cutter fitting angle 45°, vibration frequency 50 Hz, moving speed 0.6 m/min, rotation speed 25 r/min. The average driving pressure of the motor decreases by 22.9%. Adding appropriate vibration load can reduce the energy consumption of the spiral roller cutting head effectively.

基金信息:国家自然科学基金资助项目

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