Therefore, it is particularly necessary to analyze the cause of chain fracture of chain scraper conveyor and prevent the accident.
因此，分析造成刮板输送机断链事故的原因并加以预防，显得尤为必要。
There are multiple safe protectors: Overweight device, chain fracture device, trailing arm lock protect, device of the lock when it rised.
设有多重安全保护装置：超重装置，断链装置，托臂自锁保护，上升过程中的自锁装置。
There are multiple safe protectors: Overweight device, chain fracture device, device of the lock when it rised, there is a lock that stops the device on each post.
设有多重安全保护装置：超重装置，断链装置，上升过程中的自锁装置，每个立柱上均有锁止装置。
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