In the production of large-scale workpiece welding, multi-station robot welding has become the mainstream operation method due to its high efficiency and precision. However, the welding fumes generated during the welding process have become a key issue affecting the workshop environment and the health of workers. Welding fumes contain iron oxide, manganese dioxide, heavy metal particles, and harmful gases. Floating in the workshop air for a long time, these fumes not only corrode production equipment and affect welding precision but also enter the human body through respiration, posing health risks such as respiratory diseases and lung damage. Therefore, scientific and effective treatment measures must be taken to ensure that the workshop environment meets the standards and the safety of workers.
For the robot welding area of large workpieces with two groups of 12 stations, a targeted treatment solution of "dedicated dust collection hood + high-efficiency dust removal equipment" has been adopted based on the characteristics of fume generation during welding operations, achieving precise capture and purification of welding fumes.
In terms of equipment configuration, this solution selects two 1100W welding workshop - specific dust collectors, with customized dust collection hoods corresponding to the two groups of welding stations respectively, forming independent fume treatment units. This configuration idea fully considers the fume emissions when multiple stations operate simultaneously. Through the fixed-point layout of workshop welding dust removal equipment, it avoids the problem of incomplete dust removal caused by excessive load on a single device. When the robot starts welding, the high-temperature welding fumes rise due to the action of hot air currents, and the dust collection hoods set up around the welding area form a closed capture space, ensuring that the fumes do not spread to other areas of the workshop.
As the core purification equipment, the selected welding fume dust collector has a large air volume treatment capacity of 9000 cubic meters per hour, which can quickly suck the fumes gathered inside the curtain into the treatment channel. This type of welding dust collector adopts cartridge filter technology. The filter media of the welding fume cartridge filter has the characteristic of efficiently intercepting fine dust, effectively filtering particles with a diameter of less than 1 micron in the fumes, and also has a certain adsorption effect on the harmful gases generated during welding. The clean air filtered by the cartridges will be discharged up to the relevant standards, avoiding pollution to the surrounding environment and achieving a healthy air circulation inside the workshop.
In addition, this solution also takes into account the continuity and stability of exhaust and smoke extraction at welding stations. Through the precise adaptation of factory workshop station dust extractors, it ensures that the fumes generated at each welding station can be captured in a timely manner, without affecting the dust removal effect due to the dispersion of stations or changes in operation intensity. This configuration method of "one area, one device; one station, one capture point" provides a replicable workshop welding smoke treatment solution for multi-station robot welding workshops, meeting the production requirements of large workpiece welding while solving the industry pain point of fume pollution.
The emission of welding fumes must strictly comply with national and industry-related standards. Currently, the core standards for industrial waste gas emissions in China include the Comprehensive Emission Standard of Air Pollutants (GB 16297 - 1996) and Maximum Permissible Concentrations of Harmful Substances in the Air of Welding Workshops (GBZ 2.1 - 2019). Among them, for particulate matter in welding fumes, the emission concentration needs to be controlled below 120mg/m³ (unorganized emission), and for organized emissions, stricter limits are applied according to the height of the exhaust stack, generally requiring less than 50mg/m³. For harmful pollutants such as manganese and its compounds, the maximum permissible concentration in the workshop air shall not exceed 0.15mg/m³.
The dust removal solution adopted in the above-mentioned 12-station robot welding area, through the high-efficiency dust removal equipment provided by welding fume dust removal equipment manufacturers and combined with scientific layout design, can ensure that all indicators of the treated fumes meet the above standards. The key lies in the filtration efficiency and air volume matching of the welding fume dust collector - the air volume of 9000 cubic meters per hour precisely matches the fume generation in the welding area, avoiding substandard purification caused by "using a small horse to pull a big cart" and preventing energy waste caused by "using a big horse to pull a small cart". At the same time, the filter media replacement cycle and maintenance convenience of the welding fume cartridge filter also provide guarantees for long-term and stable compliant emissions.
The core of welding fume treatment in multi-station robot welding areas lies in the full-process control of "precise capture + high-efficiency purification + compliant emission". By selecting suitable welding workshop-specific dust collectors, scientifically arranging factory workshop station dust extractors, and strictly following national emission standards, it is possible to solve the environmental and health problems caused by welding fumes and create a green and safe working environment for production enterprises. With the continuous improvement of environmental protection requirements, the scientificity and professionalism of workshop welding smoke treatment solutions will become important supports for the sustainable development of enterprises. High-quality welding fume dust removal equipment manufacturers and efficient welding fume dust collectors are the key guarantees for achieving this goal.