The main function of oxidizing roasting of molybdenum concentrate is desulfurization, which is an exothermic reaction process. According to this principle, our company has developed a self-heating sulphide ore roasting rotary kiln for roasting molybdenum concentrate due to the heat supplied during roasting. The air is sufficient, so the oxidation process is accelerated, the equipment capacity is increased, and the product quality is good. The MoO3 in the calcining can reach more than 80%, which makes the smelting effect of ferromolybdenum better.

The process of directly reducing ilmenite in a rotary kiln refers to feeding qualified raw materials such as ilmenite to a rotary kiln. In the rotary kiln, the generated high-temperature flue gas forms a countercurrent motion with the material, and the charge is heated to 900-1050 ° C. Up to 1150 ° C, the ilmenite is reduced to a high grade titanium-rich material. We added the temperature measurement and automatic adjustment control system of the rotary kiln on the original basis to ensure the quality of the calcined product. In addition, a special cylinder insulation device is used to ensure efficient use of heat.

The energy-saving rotary kiln is characterized by the ability to perform an autothermal reaction during the roasting of the sulfide ore. The heat released by the roasting can fully satisfy the heat required for the next process and does not generate a large amount of flue gas. Based on the experiment of oxidizing roasting mechanism of sulfide ore, we proposed an optimal design scheme for the internal heating rotary kiln, which adopted a number of patented technologies, increased the kiln heat exchange air supply device, the cylinder expansion device, and adopted a novel slip ring. Structural design of power supply devices. It has high performance, high efficiency, zero energy consumption and other performance advantages unmatched by ordinary rotary kiln.

Under the influence of temperature and vacuum degree, the high-temperature reaction zone of the smelting furnace orthopedic machine shrinks, resulting in large deformation during repeated use of the smelting furnace. After deformation, sponge titanium lumps are difficult to remove. To solve this problem, we have designed and developed a smelting furnace straightening machine, which can be restored and reshaped without disassembling the smelting furnace, greatly improving work efficiency.