We all know that the gas transported in coal mine gas pipelines is primarily methane—a colorless, odorless, highly flammable, and explosive gas. Any leak can lead to explosions or fires, causing severe hazards.

In practice, a small amount of hydrogen sulfide with a pungent odor is added to help detect leaks in time.

Even though high-tech coated spiral corrugated steel pipes are used to withstand external stress, the pipelines are still not as safe as you might think.

Why?

When gas flows at high speed inside the pipeline, passing through valves, bends, filters, and other components, electrical charges can easily accumulate.

At certain points—flanges, joints, sampling or venting positions, maintenance areas, and non-metallic linings—the sudden release of these charges can generate static sparks.

And spark + flammable gas = ignition conditions satisfied → explosion risk increases.

So, how do we deal with these “electrons”?

The solution is not to block them, but to conduct them away.

At Mengneng, we recommend graphene conductive coatings, which form a conductive network on exposed pipeline sections and equipment surfaces.

This network quickly conducts and evenly dissipates accumulated surface charges, preventing them from reaching the discharge threshold.

It’s like creating a safe discharge pathway for the pipeline and equipment, leaving no opportunity for sparks to occur.

Moreover, the graphene sheet structure provides shielding and barrier protection, blocking moisture and ion penetration, while also improving corrosion resistance.

The coating is durable and stable, combining conductivity and protection, and is suitable for long-term operation in coal mine gas environments.

Compared to ordinary epoxy coatings, it offers enhanced durability, providing stable protection for over 10 years.