Risk source point: The strength of the temporary hand chain hoist suspension hanging point is insufficient.
Risk analysis: At the stress concentration point during lifting, the maximum torque or weak point breaks and the heavy object falls.
Risk prevention: Try to avoid welding temporary suspension points. It is really necessary to use continuous welds, reasonable welded structures and materials large enough.
1. Temporary suspension hanging spot welding on the pipe wall or directly welded to the container wall; 2. The hook of the manual chain hoist is hung on the hanging lifting point, and the hook is easily pulled out from the hanging point.