Roasting of Titanium Concentrate and the Smelting Process for Titanium Iron

　　Titanium iron is primarily used as an alloying agent, deoxidizer, and degasser in steel and alloy steels, as well as a foundry additive and a coating for welding electrodes.

To ensure the smooth operation of the titanium‑iron smelting process, the reaction heat must reach 2,554–2,596 kJ/kg. Under these conditions, nearly all iron oxides are reduced, with silicon dioxide reducing about 90% of them, and TiO₂ being reduced to its highest oxidation state—Ti⁴⁺—at approximately 77%. The titanium in the slag exists as lower‑valent oxides, which are difficult to reduce; therefore, the mixed charge must be preheated before smelting. For every 100°C increase in temperature, the specific heat effect can be enhanced by nearly 125 kJ/kg.

　　Traditionally, preheaters have been brick-built reverberatory furnaces. The reverberatory furnace is one of the conventional pyrometallurgical smelting units; however, it suffers from several drawbacks, including high fuel consumption, low thermal efficiency, heavy manual labor, low production capacity, a large footprint, and substantial refractory material consumption.

In response to the aforementioned circumstances, after years of research and development, and in collaboration with relevant research institutes and universities, our company has successfully developed a state-of-the-art domestic technology for producing titanium concentrate using a preheated rotary kiln production line. This system features optimized design across all process stages—feeding, calcination, heat‑source sealing, discharge, and dust collection—yielding excellent results.

　　During operation, this system boasts high thermal efficiency, excellent energy savings, precise temperature control, and stable product quality. It reduces the cost of producing one ton of ferrotitanium by more than RMB 200.

Equipment for the roasting and smelting of titanium concentrates is classified as follows:

1. Feeding System

2. Rotary kiln

3. Dust Collection Series

4. Calcination Heat Source System

5. Smelting System

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Introduction to the Smelting Furnace Straightening Machine

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Introduction to the Smelting Furnace Straightening Machine