What are the functions of installing stainless steel welded air duct in environmental protection ventilation project of laser cutting workshop?

In the environmental protection ventilation project of laser cutting workshop, installing stainless steel welded air duct is the core measure to ensure the workshop environment reaching the standard, the stable operation of equipment and the health and safety of personnel. Its function is mainly reflected in three dimensions: waste gas collection and treatment, environmental safety protection and long-term stable operation of the system, as follows:

Efficient collection and transportation of pollutants produced by laser cutting

When laser cutting metal materials (such as carbon steel, stainless steel and aluminum alloy), a large amount of metal dust and metal oxide smoke will be produced, and a small amount of harmful gases (such as metal vapor and decomposition products of additives) will be volatilized during high temperature cutting.

Stainless steel welded air duct has smooth and seamless inner wall structure, small wind resistance and good airflow fluidity, which can quickly and efficiently collect pollutants near the cutting head and stably transport them to the dust removal and purification equipment at the back end (such as bag dust collector and filter cartridge dust collector) to avoid dust diffusion and accumulation in the workshop. Compared with galvanized iron sheet air duct, its seamless welding process can prevent dust from staying and accumulating at the joint of air duct and prevent secondary dust.

Ensure the health and production safety of workshop personnel.

Metal dust (especially fine particle dust) produced by laser cutting will endanger the health of respiratory system if inhaled by human body; Some metal dust (such as aluminum-magnesium dust) is inflammable and explosive, and when it reaches a certain concentration in a closed space, it is easy to explode when it meets an open flame.

The high-strength sealing performance of stainless steel welded air duct can ensure the whole process of sealed transportation of pollutants, prevent leakage, effectively reduce the dust concentration in the workshop and control the dust content within the scope of national occupational health standards (such as GBZ 2.1); At the same time, stainless steel has flame retardant and antistatic properties (which can be further strengthened by grounding treatment), which can avoid potential safety hazards caused by static electricity generated by dust friction in the air duct and improve the production safety of the workshop.

Adapt to the harsh working conditions of laser cutting workshop and prolong the service life of air duct.

There are complex working conditions such as high temperature, high humidity, dust wear and corrosive gas in laser cutting workshop, and common air ducts (such as galvanized air ducts and PVC air ducts) are prone to corrosion, deformation and wear.

Strong corrosion resistance: Stainless steel (commonly used 304/316 stainless steel) can resist the corrosion of acidic and alkaline gases generated in the cutting process, and is especially suitable for cutting scenes that are prone to generate corrosive volatiles such as coated metals and aluminum alloys, and its service life is far longer than that of galvanized air ducts.

High temperature resistance and wear resistance: the air temperature near the laser cutting area is high, and the stainless steel welded air duct can withstand short-term high temperature air impact and is not easy to deform; At the same time, its hard pipe wall can resist the erosion and wear of metal dust and avoid the waste gas leakage caused by the damage of the air duct.

High structural strength: the welded stainless steel air duct has strong overall rigidity, which can meet the requirements of ventilation system with large air volume and high air pressure, and it is not easy to cause problems such as collapse and cracking of the air duct when the fan runs at high pressure, thus ensuring the stable operation of the ventilation system.

Reduce the later maintenance cost and meet the requirements of environmental protection standards.

The inner wall of stainless steel welded air duct is smooth, which is not easy to scale and accumulate dust. Daily maintenance only needs to clean a small amount of residual dust in the air duct regularly, which has low maintenance frequency and low cost. Its excellent sealing and corrosion resistance can avoid the efficiency decline of the dust removal system caused by air duct leakage, ensure that the exhaust gas treated by the back-end purification equipment reaches the standard, meet the requirements of environmental protection laws and regulations (such as the Comprehensive Emission Standard of Air Pollutants), and avoid enterprises from being punished for exceeding the standard.