Boiler chimney demolition construction safety steps - Database & Sql Blog Articles

Boiler Chimney Removal: Safety and Construction Procedures

When it comes to boiler chimney removal, safety is the top priority. The process involves a series of carefully planned steps to ensure that both workers and surrounding structures remain protected throughout the demolition. Here’s a detailed breakdown of the key procedures involved.

1.1 Temporary Elevator and Escalator Access

The first step involves using temporary elevators or escalators for personnel and materials. These systems are crucial for safely moving workers and equipment up and down the structure. Before any work begins, strong bindings are typically secured on the ground to stabilize the area. An east-west ladder is often temporarily fixed to the side of the steel column, allowing workers to access the upper parts of the chimney for dismantling. After use, these ladders are carefully removed to prevent any potential hazards.

1.2 Scaffolding and Handrail Systems

Flat channels are commonly used in conjunction with scaffolding systems, including steel pipe scaffolds and platform boards. A handrail rope is installed in areas where there is no existing safe passage. These ropes are usually made from steel wire or nylon and are tied through welded joints at a certain height from the beam. This provides a secure grip for workers as they move along the steel beams, ensuring stability and reducing the risk of falls.

1.3 Operating Platforms and Column Fixation

For multi-column operating platforms, the connections between steel columns must be properly welded and fastened. These platforms are essential for welders and other construction workers to perform their tasks safely. Typically, an east-west platform is either built using steel pipes or directly placed on the structure. Before lifting any components, the column must be securely fixed to prevent any accidental movement during the process.

1.4 Beam and Column Joint Connections

The joints between beams and columns are often secured using high-strength bolts or welding. These connections are similar to those found in steel hanging baskets, which can be easily suspended from the steel beams. This allows for flexible and efficient movement during the demolition process, making it easier for workers to maneuver around the structure.

1.5 Protective Nets and Safety Measures

To enhance safety, a network of protective nets is often set up during chimney demolition. This includes floor-level nets, vertical protective nets, and pick-up nets. Floor-level nets can be arranged on the surface of steel beams or attached to the lower flange hooks. They can also be placed under the scaffolding system for added protection. Vertical and pick-up nets provide lateral support, ensuring that debris and materials do not fall onto lower levels or nearby areas.

2. Break Layers and Metal Profiled Boards

In some cases, a break layer is necessary to separate different working zones, especially when dealing with complex structures. Metal profiled steel plates are often used as the break layer during chimney demolition. These plates are inserted into the chimney structure to create a barrier that helps control noise and prevent debris from falling. This method is particularly effective in maintaining a quiet and safe working environment during the entire demolition process.