What are the advantages of installing stainless steel welded air ducts in mine tunnels?

Installing stainless steel welded air ducts in mine tunnels has the following advantages:

I. Corrosion resistance

Adapt to harsh environment

The environment in mine tunnels is usually harsh, and there are a lot of corrosive substances. For example, in some metal mines, acidic or alkaline ore components will release corrosive gases, such as sulfur dioxide, hydrogen sulfide and other acidic gases. Stainless steel has good corrosion resistance, which can resist the corrosion of these harmful gases and prolong the service life of air duct. Compared with air ducts made of other materials, such as ordinary carbon steel air ducts, it is easy to rust and corrode in this environment, which leads to the thinning and perforation of the air duct wall, thus affecting the normal operation of the ventilation system.

The humidity in mine tunnel is high, which is easy to produce water vapor condensation. Stainless steel welded air duct can effectively resist the corrosion of water vapor, and the passivation film on its surface can prevent the further reaction between water vapor and metal matrix, thus ensuring the integrity and tightness of the air duct structure.

long term stability

Due to the corrosion resistance of stainless steel, it can maintain good performance in the long-term use of mine tunnels. During the whole mining cycle, which may be as long as several years or even decades, stainless steel welded air ducts do not need to be replaced frequently, which reduces the maintenance cost and the risk of production interruption caused by air duct replacement. For example, in some large metal mines, the mining operation may last for 20-30 years, and the stainless steel welded air duct can stably provide services for underground ventilation.