The smoke and dust in welding fumes are a very complex substance, with over 20 elements found in the smoke and dust. The harmful smoke and dust in the welding process of carbon steel mainly include FeO, SiO, MnO, etc. The main smoke and dust component in the welding process of aluminum alloy is Al ₂ O3 particles, and some harmful gases such as ozone, nitrogen oxides, carbon monoxide, fluoride, and chloride are also produced during the welding process.

Workers working in a welding smoke environment for a long time without appropriate protective measures can lead to various occupational diseases such as pneumoconiosis, osteomalacia, anemia, etc. Harmful gases can also cause pulmonary edema, bronchitis, acute asthma, neurasthenia, and chronic respiratory inflammation.

Sunshine Power Co., Ltd. is a national key high-tech enterprise specializing in the research and development, production, sales, and service of new energy power equipment such as solar energy, wind energy, energy storage, and electric vehicles. Along with its rapid development, Sunshine Power has always attached great importance to environmental protection in the factory area. Therefore, it is necessary to treat the waste gas generated in the workshop, and Tianhaoyang provides waste gas treatment engineering services for it.

1. Project Overview

Source and composition of exhaust gas: smoke and dust generated during the welding process of carbon steel products and aluminum products, as well as dust generated during the polishing process, with particulate matter as the main pollutant component;

Exhaust gas treatment air volume: 115000m3/h for welding and polishing of carbon steel products, 95000m3/h for welding and polishing of aluminum products;

Emission standards: Particulate matter emissions shall comply with the second level standards in the Shanghai Comprehensive Emission Standards for Air Pollutants (DB311933-2015).

2. Solution

Welding and grinding exhaust gas treatment process for carbon steel products: filter cartridge dust removal+fan+standard emission

Aluminum welding and polishing waste gas treatment process: Venturi water film dust removal+fan+standard emission

3. Project site pictures