1. Find a safe station
It is not safe to work or walk directly under a suspended object, as the large size steel pipe may hit you. In the operation of lifting steel pipes, the areas below the suspension rod, under the suspended object, in the front area of the lifted object, in the triangle area of the guide pulley steel rope, around the fast rope, and standing in the direction of the force on the inclined hook or guide pulley are all very dangerous parts. So, the position of workers is very important. Not only should they always pay attention to themselves, but they also need to remind each other and check the implementation to prevent accidents.
2. Correctly Understand the Safety Factor of Galvanized Steel Pipe Hoisting Rigging
In steel pipe lifting operations, operators without a proper understanding of the safety factor of lifting slings often rely on continuous use, resulting in overweight operations always being in a dangerous state.
3. The demolition operation should have foresight for various situations encountered
It is prohibited to forcefully lift objects without inspection, such as estimating their weight, thoroughly cutting, increasing the load on dismantled parts due to compression, and connecting parts.
4. Eliminate erroneous operations
The lifting operation of steel pipes is different from many constructions, involving a large area and often using different units and types of cranes. Factors such as daily operating habits, performance, and differences in command signals can easily lead to misoperation, so special caution should be exercised.
5 pairs of lifted objects should be securely bound
During high-altitude lifting and dismantling, the lifted object should be "locked" instead of "pocket"; Measures should be taken to "cushion" the sharp edges and corners of the suspended object.
6 pairs of drums with loose rope wrapping
When hoisting and dismantling large pieces, the steel ropes wound on the drum of the crane or the motorized winch is loosely arranged, which causes the fast rope under heavy load to be pulled into the rope bundle, causing the fast rope to shake violently and lose stability easily. As a result, there is often an embarrassing situation of continuous operation danger and inability to stop.
7. Temporary lifting nose welding is not secure
If the welding strength of the temporary suspension nose is insufficient, the load increases or is impacted, which can easily lead to fracture. The force direction of the hanging nose is single. When lifting or lowering a long cylindrical object, the force direction of the hanging nose also changes with the angle of the object. However, this situation is not fully considered in the design and welding of the hanging nose, resulting in the defective hanging nose suddenly breaking (breaking) during lifting operations. The welding material of the hanging nose does not match the base material and is welded by informal welders.
8. Improper selection of lifting tools or lifting points
The establishment of lifting tools or the use of pipelines, structures, etc. as lifting points for lifting objects lacks theoretical calculation. The lifting tools or pipelines, structures, and objects estimated based on experience have insufficient bearing capacity or local bearing capacity, resulting in instability at one point and overall collapse.
9. Improper selection of pulley ropes
When setting up lifting tools, there is insufficient understanding of the changes in force on the ropes of the pulley and the tie pulley caused by changes in the angle of the fast rope. The tonnage of the guide pulley is too small, and the rope for the tie pulley is too thin. Overloading the force can cause the rope to break and the pulley to fly.
10. Unreasonable selection of unloaded lifting rigging
There are many accidents that occur in this way. The lifting work has already ended, and when the hook is running with an empty rope, the free state of the lifting rope hangs and pulls the lifted object or other objects that have been unhooked. If the driver or commander of the operation does not respond in a timely manner, the accident occurs instantly, and this type of accident has very adverse consequences for operators and cranes.
Pay attention to safety production and strictly implement safety responsibilities
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#YuantaiDerun Safety Production Management Department - Director Xiao Lin of Tianjin Yuantai Derun #SteelPipe Manufacturing Group
Post time: Apr-24-2023
