Best matche for DRI briquette?

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Now, the DRI fines briquetting is becoming a new trend for many steel companies, but how can it be made into briquettes? do you need to add other raw materials?

The best combination materials for briquetting DRI fines depends on the end use, cost considerations, and process requirements. Both mill scale fines and iron ore powder are viable options, and each has distinct advantages:

1. DRI Fines + Mill Scale Fines

Advantages:

High Iron Content: Mill scale is a by-product of steelmaking with high Fe content, making it a good match for DRI fines.

Good Bonding Properties: The oxide layer in mill scale can enhance briquette strength.

Waste Utilization: Recycling mill scale into briquettes reduces waste and enhances sustainability.

Challenges:

Requires careful management of impurities like silica or alumina.

May need a binding agent to ensure stability and durability.

2. DRI Fines + Iron Ore Powder

Advantages:

Raw Material Availability: Iron ore powder is abundant and complements DRI fines in iron content.

Improved Metallurgical Properties: Combining these materials can enhance reducibility and energy efficiency during steelmaking.

Flexibility: Suitable for use in blast furnaces or electric arc furnaces after briquetting.

Challenges:

Requires higher compaction pressure or binding agents for strong briquettes.

Moisture content and oxidation risks need to be managed.

Ideal Combination

For most applications, a blend of DRI fines with mill scale fines or iron ore powder, combined with a suitable binder, works best.

Key Factors to Consider:

1. Iron Content: Higher Fe content improves the briquette’s value in steelmaking.

2. Binder Selection: Ensure the binder is compatible with the metallurgical process.

3. Process Goals: Choose based on whether the briquettes will be used in direct reduction, blast furnaces, or electric arc furnaces, this is very important for binder.

3. What are the advantages of our binder for DRI briquetting?

1. High bonding properties. (Up to 300KG)

2. Customable based on the raw materials, production equipment, application.

3. Ease of use, compared to liquid binders, it's simple to establish a binder hopper, and easy to handle, dose, it doesn't stick to roller surfaces.

4. Less dosage and cost effective. ( usually 2-5% )

5. High durability and productivity. (95% forming rate)

6. Free of sulfur and phosphorus, and it doesn’t affect the use of briquettes.

For more info about binder: [email protected]