通过对现场使用的带式输送机给料槽存在的问题进行分析，设计出一种曲面给料槽。实践证明使用效果良好。
Through analyzing the problems existing in the belt conveyors in site, this paper puts forward a kind of trough with curved surface which behaves nicely in practice.
干式磁选机的操作调节注意的主要因素是：给料层厚度(给矿量)、振动槽的振动速度、磁场强度和工作间隙等。
Dry magnetic separators operation regulation note the main factors are: the feeding layer thickness (give ore amount), vibration slot vibration velocity, magnetic field intensity and working gap, etc.
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