Conveyor Safety in Hindi | Conveyor Belt Safety | Conveyor Safety | Conveyor Belt Safety Device | ZSS | Conveyor Belt ZSS | Zero Speed Sensor | Conveyor Safety Equipment | Belt Conveyor Safety Equipment/Components | Belt Conveyor General Guidelines | parts description
Nip points, shear points, or rotating parts of conveyor belt need to be guarded for all personnel working in entire industries and mines as well. Safetyguard are fabricated with metal mesh or screen, steel structure as per site constraints whatever it is. Safeguards ensure safety to the personnel from fatal as well as minor risk of injury posed by exposure of moving parts.
Following strategies are adopted for guarding moving machine parts:
The yellow guard between the conveyor’s drive motor and gear reducer closely fits over the shafts and the coupling that connects them. It protects personnel from contacting the hazardous moving machine parts.
Guard is used at head pulley area to protect personnel from multiple hazards at this area.
The multiple hazards include the head pulley and shaft, keyway and key, the in-running nip point between the pulley and the belt, and the conveyor V-belt and motor drive.
If Tail pulley of belt conveyor is high enough above surrounding surface that personnel can get under it, either inadvertently, or for work-related purposes such as when cleaning accumulations of material from below it. Therefore, it must be guarded on the bottom.
Conveyor belt return rollers are considered to be “similar moving parts” and must be guarded when personnel work or travel under the conveyor. Unguarded return rollers that can be contacted are particularly hazardous because they have in-running pinch points across the entire width of the belt into which persons can be drawn and trapped.
Unguarded conveyors next to travel ways to be equipped with either:
Emergency stop devices or pull cord switches so that a person falling on or against the conveyor can readily deactivate the drive motor, or…
Railings positioned to prevent persons from falling on so, railings must be constructed and maintained.
The positioning of an emergency stop cord / pull cord switch is performance-based. Emergency stop devices need not run the entire length of the travel way, just the unguarded portion of the conveyor. The key provision is that persons can use it to READILY DEACTIVATE the conveyor.
Emergency stop cord or pull cord switch may be positioned tightly, as long as a person can readily deactivate the conveyor.
If emergency stop cord or pull cord switch is very slack, it is not compliant because someone falling on or against the conveyor could not pull it quickly and far enough to deactivate the conveyor.
Other safety switches like
belt sway switch (BSS)
Zero Speed Switch (ZSS)
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