The comprehensive management of welding fumes in industrial workshops requires a systematic engineering control and management strategy. The following specialized solutions are based on occupational health standards (e.g., OSHA, NIOSH, and GBZ 2.1) and are implemented in a hierarchical manner for greater efficiency:
1. Process optimization
- Selection of low fume welding consumables: e.g. flux cored wire instead of manual welding rods (fume volume reduced by 30%-50%)
- Promote automated welding: robotic arm + enclosed workstation to reduce manual exposure (fume concentration can be reduced by more than 70%)
- Pulse welding technology: reduce peak temperature through current control, reduce metal vaporization
2. Material pre-treatment
- Pre-welding cleaning: Removal of surface oils/coatings using acetone or specialized solutions (reduces fluoride, zinc oxide generation)
- Chromium-free/manganese-free alloy substitution: prioritize low-toxicity metal formulations (e.g., 90% reduction in chromate fume cancer risk)
- Fixed stations: According to the welding workpiece size, weight and other factors to choose to install the dust collection hood or flexible suction arm. For large workpieces, Moland R&D and produces the fixed dust collection hood, rotating dust collection hood, front and back or / and left and right moving dust collection hood, folio dust collection hood, etc., so that the fume in the dust collection hood directly get effective collection and purification, to avoid contamination of other spaces. The flexible suction arm of Moland can rotate 360°, hover at any position, and the length can be customized according to the site conditions, so that the welding fume is collected and purified directly at the point of dust production, without passing through the workers' oral cavity, which is more environmentally friendly and safe.
2.Mobile welding: For mobile welding conditions, Moland launched mobile welding fume extractor, equipped with universal flexible arm (covering a radius of 2~3m) and high-efficiency cartridges (filtration efficiency of 99.92%, 0.3μm), which is a cost-effective and efficient solution to the problem of welding fumes and protects the health of workers.
3.Centralized dust removal: Moland customizes the design of efficient, reasonable and low energy consumption overall dust removal system solutions according to the customer's on-site working conditions. Adopting the overall scheme of negative pressure system of pipeline + spark catcher + industrial dust collector + fire-fighting system + air monitor, it realizes the systematic treatment of high-efficiency purification, real-time monitoring, frequency conversion adjustment and safety protection.
