A belt conveyor is a kind of major equipment to carry loose materiel and is widely used in industries such as mine port, metallurgy, etc. for its numerous advantages. But Because of the influence of belt itself and outside factor, the accident that the belt is cut off often appears, which make a grate threat for safe production. Gives detail introduction to several types of broken belt protectors used in home, analyzes its working principle and advantages and disadvantages, provide certain reference for the user choice.
Because it is difficulty to collect field corrosion data,estimation of the remaining life of corroded tanks mostly adopts qualitative analysis. On the basis of the relationship curve of the corrosion depth and service time,according to the acquisition of corrosion data sample size,the paper used limited polyline to replace the corrosion curve,simplified the calculation of the remaining life of corroded tanks.
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