1. Hazard source: The surrounding environment has not been checked.
Description of risks and consequences: loose coal, umbrellas at the wall, and live injuries.
Pre-control measures: The top support is safe and reliable within 5m of the working environment. The work site is strictly implemented with the help of the top, and the active and dangerous rock is treated in time.
2. Hazard source: Clean the belt or the head of the slider and the floating coal at the tail of the machine when starting up.
Description of risk and its consequences: it is easy to cause the wounded part to be wounded.
Pre-control measures: When cleaning the belt or the head of the slider and the floating coal at the tail, it must be stopped after the machine is stopped, and the driver should be contacted in advance.
3. Hazard source: The debris and materials cleared are not properly disposed.
Description of risks and consequences: It is easy to cause people to walk.
Pre-control measures: Remove the sundries and materials, and transport them to the designated place in time to arrange them neatly, or load them by car, and gently handle them, otherwise it will affect pedestrians or deaf people.
A Blind flange is round plate which has all of the relevant boltholes but no center hole, and because of this feature this flange is used to close off the ends of a piping systems and pressure vessel openings. It also permits easy access to the interior of a line or vessel once it has been sealed and must be reopened.
The blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. This flange helps in easy access to a line once it has been sealed. The blind flange is sometimes custom made or machined to accept a nominal sized pipe to which reduction is being made.
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