The rotary furnaceis a thermal energy equipment used for forging, baking or drying granular or powdered materials. The rotary furnace has a history of hundreds of years, but most of them are large and large blast furnaces, with coarse ground powder and ore as the main raw materials.

The pure oxygen natural gas rotary furnace has attracted much attention in the casting field due to its good environmental performance. Since 2015, many companies and individuals at home and abroad have carried out research and industrial application of this process, but the process still faces a lot of iron consumption problems. As a pure oxygen recovery blast furnace, the natural gas rotary furnace has a history of more than 50 years abroad, which is particularly suitable for my country's small and medium-sized foundries. my country is a developing country with a vast territory, a wide range of industries and extremely unbalanced development. Most small and medium-sized foundries are mainly labor-intensive industries, which play a vital role in absorbing local labor employment and maintaining social stability.

The furnace has the following characteristics:

(1) Compared with the cupola, 60-80m3CO2 will be produced per ton of iron, which is 40% less than that of the cupola. The coal conversion rate of the electric furnace is as high as 38%, which can greatly reduce carbon dioxide emissions and has great significance for environmental protection.

(2) The production site is clean, the slag volume is small, and the waste slag emission is small, which is beneficial to environmental protection.

(3) It can be used for melting and processing non-ferrous metals such as gray cast iron, ductile iron, vermicular iron, forgeable cast iron, alloy cast iron, copper, aluminum, etc.

(4) The equipment investment and smelting costs are lower than those of the induction electric furnace

Therefore, the pure oxygen natural gas rotary furnace will receive widespread attention.