Lead is a corrosion-resistant metal and one of the earliest refined metals. In order to meet the needs of environmental protection, low carbon, energy saving and consumption reduction, new technologies continue to emerge, and the process of smelting lead ore in a rotary furnace has also developed very early.

One-time lead smelting is a one-time lead smelting with lead sulfide concentrate and a small amount of lump ore as raw materials. At present, the international main method is pyrometallurgy, while hydrometallurgy is mainly used for lead smelting, and hydrometallurgy is still in the experimental research stage. At present, my country's pyrometallurgy lead smelting is mainly carried out by "sintering-roasting-blast furnace", and its output is about 85-90%; followed by reaction smelting method, its equipment can be furnace type, short kiln, electric furnace, eddy current furnace, etc., which is rarely used. At present, the domestic smelting method is mainly pyrometallurgy, followed by electrolytic refining. For lead-zinc sulfide ores that are difficult to separate, closed blast furnace smelting method is usually adopted to produce lead and zinc simultaneously during the production process. For the lead and zinc oxide mixed ore that is difficult to separate, after long-term research, a set of raw materials such as lead, lead, lead, zinc, etc. that are suitable for my country's national conditions and have a special process route has been developed. After high-temperature roasting and roasting, lead-containing slag is obtained, and then it is smoked in a fuming furnace to generate zinc oxide products, and then wet zinc smelting is carried out. In addition, the rotary kiln method can also be used for roasting to obtain zinc oxide products.

The rotary furnace adopts a steel cylinder, lined with refractory bricks, and supported by multiple pairs of rollers. The furnace body is driven by a motor to slowly rotate. The fuel (coal powder, heavy oil or gas) is sprayed into the furnace and burned in the furnace. A temperature sensor is installed on the electric control panel to control and maintain the furnace temperature. The use of this device can not only greatly improve the purity of lead, but also reduce the time required for lead smelting. The present invention is a special electric furnace for melting metals. Its advantages are low power consumption and high power. It can also melt various materials such as steel, stainless steel, copper, aluminum, gold, silver, etc. Its equipment is small and light, and the melting rate ranges from a few kilograms to hundreds of kilograms, with a wide range of options.

The smelting process of the rotary furnace brings convenience to people.