Ngừng mua bê tông trộn sẵn: Cách tự làm nhựa đường pha loãng (MC-30/MC-70) tại công trường một cách an toàn

If you are paving a road base, you need Prime Coat. Usually, this means using Nhựa đường cắt giảm (like MC-30 or MC-70).

But buying pre-mixed cutback bitumen from a refinery is expensive.

1. Transport Cost: You are paying to transport Kerosene/Diesel (the solvent), which you could buy locally for cheap.

2. Safety Risk: Transporting flammable liquids over long distances requires special permits.

3. Quality Loss: The solvent often evaporates during transport, changing the viscosity.

The smart solution? Blend it yourself on-site.

At FEITENG, we supply specialized Bitumen Blending Tanks that allow you to mix base bitumen with solvents safely and efficiently.

1. The Recipe: What is Cutback Bitumen?

Cutback bitumen is simply Standard Penetration Bitumen (e.g., 60/70) dissolved in a solvent to make it liquid at ambient temperatures.

• Rapid Curing (RC): Bitumen + Gasoline (High flammability, dangerous).

• Medium Curing (MC): Bitumen + Kerosene (Most common for Prime Coat).

• Slow Curing (SC): Bitumen + Diesel.

Note: The ratio varies (e.g., 60% Bitumen + 40% Kerosene), but you need a machine that can mix them thoroughly without separation.

2. The Danger Zone: Why You Need a Professional Tank

You cannot just dump kerosene into a hot bitumen tank. That is a recipe for an explosion.

Flash points are critical. Kerosene flashes at $\approx 40-50^\circ\text{C}$. If you pour it into $160^\circ\text{C}$ bitumen in an open tank, it will ignite.

The Feiteng Blending Tank Solution:

Của chúng tôi XLC Series Blending Tanks  are engineered for safety:

1. Explosion-Proof Motors: All agitator motors and pumps are Ex-proof rated.

2. Closed System: The blending happens in a sealed environment to prevent solvent vapor from escaping and catching fire.

3. Powerful Agitation: A central shaft with dual-layer paddles ensures the solvent is mixed instantly into the bitumen, preventing pockets of volatile fuel.

3. The Step-by-Step Blending Process

Here is how our clients in Africa use Feiteng equipment to produce MC-30:

• Step 1: Temperature Control (Crucial)

  Cool your base bitumen down! Do not mix at $160^\circ\text{C}$. Bring the base bitumen temperature down to $110^\circ\text{C} – 120^\circ\text{C}$ before adding solvents.

• Step 2: Pump the Solvent

  Using our flow-metered pump system, inject the required amount of Kerosene into the tank below the liquid level (submerged injection) to minimize static electricity and splashing.

• Step 3: Agitate

  Turn on the Feiteng Heavy-Duty Agitator. Run it for 30-60 minutes. The paddle design creates a vortex, ensuring a homogenous mix.

• Step 4: Discharge

  Pump the finished MC-30 directly into your distributor truck using the integrated High-Viscosity Bitumen Pump.

4. Why Choose Feiteng Equipment?

We don’t just sell tanks; we sell Process Safety.

• Materials: We use Q235 Steel with 5mm thickness for durability.

• Heating Options: Choose from Thermal Oil Coils (safest for cutback) or Indirect Electric Heating.

• Customization: We can add load cells (weighing sensors) to the tank legs so you can measure the exact ratio of bitumen vs. kerosene by weight.

Conclusion: Save Money on Every Ton

By switching to on-site blending, you save the markup on pre-mixed cutback and reduce logistics headaches.

Whether you need a small 15,000L Blending Tank or a large 50,000L Production Unit, Feiteng has the engineering ready.

Start your own production today.

Get a Quote for a Blending Tank.