Welding fume control system is the necessary dust removal equipment for welding workshop, and it is different from the working mode of mobile welding fume purifier to purify welding fume separately. It is a large-scale welding fume treatment scheme for the whole welding workshop.
During the design of the welding fume control system, the dust removal scheme will be customized according to the actual demand of the workshop. The dust collecting cover will be designed according to the size of the working position and the subsection of the welding spot, so as to collect the welding dust within the maximum range. In order to prevent the smoke from escaping, a circle of arc proof curtain can be installed around the dust collecting cover, or a special baffle plate can be installed at the suction outlet of the dust collecting cover Enhance the ability of collecting welding fume in edge area.
According to the statistics of welding posts and workshop length in the workshop, the quantity of welding fume produced in the whole workshop and the filtering area required for effective purification are estimated, so as to determine the number of filter elements placed by the main engine of the welding fume treatment system, and the fan power selection also comes from the distribution of the workshop positions. No matter whether it is near or far from the main engine end, it is necessary to ensure that there is enough air volume at the pipe opening.
Customers are most concerned about the final treatment effect of welding fume. Because the centralized dust removal system has enough air volume and filter cartridge, its fume purification effect is far better than that of mobile welding fume purifier. The indoor detection of welding fume concentration is only 3 ~ 4mg / m3, which is far higher than the current domestic standard.
The dust removal of large welding workshop should follow the regulations of environmental protection department on the organized emission of smoke and dust. Of course, the welding fume control system has 15m high-altitude pipeline for discharge, which can meet the requirements of organized emission. The welding fume emission concentration outside the dust removal equipment of the whole welding workshop is within 30mg / m3 (it can be detected in the reserved window of the smoke exhaust pipe), which is also above the specified standard level, so there should be no problem in environmental protection inspection.
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