Multicut Welding A/S
Manufacture and processing of metal items

System description

Extraction of welding fumes for robot welding and manual welding workstations with room ventilation and heat recovery

Total capacity

System for robot welders: 60,000 m3/h, system for manual welding stations: 40,000 m3/h

Task

In connection with the start-up of a new production site for welding, there was a need to remove harmful influences from the welding arc. The focus area was to create an optimal working environment, where well-being is paramount and the environment is impacted as little as possible, while energy consumption is optimal.

Solution

A system for robotic welding with a capacity of 60,000 m3/h and a system for manual welding with a capacity of 40,000 m3/h have been established. For both systems, cartridge filters are installed, which comply with the emission requirements and effectively clean the filter elements by differential controlled compressed air purifying. The extraction points of the welding robots and each manual welding station are fitted with automatic valves that open automatically when the machine or welding device is activated. The exhaust fan for each system is frequency-converter-driven, which means that the air volume is automatically adapted to the current demand.

For heat recovery from the extracted air, each system comes with a ventilation unit with double cross exchanger. The temperature efficiency of each system is up to 86%, ensuring a highly efficient system with low operating costs. The supply is designed to balance the air flow in the rooms, so that fresh, heated replacement air is always supplied for an optimal indoor climate. The supply into the production hall takes place through D-shaped injection bags suspended directly from the ceiling to free up the necessary space for overhead cranes.


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