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1、 Technical name: solid waste slag from copper smelting in DC submerged arc furnace (containing 40% iron)

2、 Technical proposal description

1. This technical introduction

The solid waste slag (containing 40% iron) of copper smelter is smelted by adding carbon free flux and using the characteristics of electromagnetic stirring in DC submerged arc furnace to obtain two products: one is low-carbon pig iron (bread iron), and the other is that the smelting slag is calcium silicate, which is the clinker for the production of cement.

2. Smelting principle

Carbon free flux is used to reduce the melting point of materials, accelerate the melting speed of materials, and reduce the viscosity of high-temperature furnace slurry. Combined with the electromagnetic stirring characteristics of DC submerged arc furnace, the fluidity, thermal conductivity and conductivity of slurry are increased, so that iron oxide decomposes and reduces at high temperature to obtain metal.

3. Advantages of this technology

(1) Energy saving (adding flux to reduce the melting point of materials and shorten the melting time);

(2) Low carbon (the reducing agent we use does not contain carbon);

(3) Mature production process (the original production process of submerged arc furnace can be used for large, medium and small-scale tests):

(4) High metal yield

We can get the desired metal or alloy by direct reduction from various metal raw ores. At present, the mature smelting products include:

1. Chrome ore ferrochrome 2 Manganese ore ferromanganese alloy

3. Tungsten ore - tungsten ferroalloy 4 Nickel ore ferronickel alloy

5. Pyrite precious metal alloy 6 Iron ore - metallic iron

7. Copper - metal

3、 Test charge standard

The small-scale test of raw ore within 15kg is free, and the pilot test within 100kg and the large-scale test within 100t are charged.

Energy saving DC furnace + carbon free green smelting technology = environmental protection, energy saving and consumption reduction

Contact: Song Baoqing

Micro electricity: 13949514533