Metal processing waste gas treatment methods

Metal processing industry, including ferrous metal processing and non-ferrous metal processing, from the process can be divided into deformation processing, cutting, grinding, welding, heat treatment and surface treatment.

Metal processing industry will produce dust emissions in the production, mainly by blasting, polishing and polishing processes, including sand, metal oxides and fiber dust.

In addition, metal processing plant will also emit acidic waste gas, due to hydrochloric acid, sulfuric acid and other acidic substances pickling, light and chemical polishing process, such as: hydrogen chloride, sulfur dioxide, hydrogen fluoride, hydrogen sulfide and phosphoric acid and other gases and acid mist .

In the metalworking industry, the most important thing in the exhaust gas treatment is welding fumes. The harmful substances in the welding and related processes are produced during the welding cutting and the related processes, depending on the type of welding and the welding material used is a kind of inhalable Air Pollutants.

Welding fumes dust Hazardous to health of the gaseous and particulate matter (including gas & smoke & dust, etc.) collectively referred to as hazardous substances, welding and related processes exist in the form of harmful substances exist in the form of gaseous and particulate two particulate state substances, Small solid particles dispersed in the air, the particles suspended in the air is very small, is "breathable" and called welding fumes.

For the metal processing industry, the quality of the welding fume exhaust gas, the company uses efficient metal processing plant exhaust gas purification welding dust, dust can effectively purify the exhaust gas purification plant to eliminate pollution and improve working conditions to ensure the health of workers.

Welding soot filtration and emission control The purpose of welding fumes: First, to fully protect the health of workers; second is to make indoor concentrations of harmful pollutants less than the national mandatory standards for the welding of dust in the workshop air sanitation standards; Third is to row The concentration of atmospheric pollutants reached the national environmental requirements.

Centralized overall soot processing equipment due to the tiny dust particles welding smoke, the general filter material can not be filtered welding soot, I use PTFE membrane filter cartridges, the use of centralized overall soot processing equipment, pulse counter-blowing Cleaning, to ensure filtration accuracy.

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