PROJECT NEWS

BACK 1.2mtpa Ferronickel Plant Started Operation in Inner Mongolia
RELEASE TIME:2021-07-15 SHARE:

Recently, the 1.2mtpa ferronickel plant of (Naiman) Jing'an Non-ferrous Metals of Inner Mongolia started operation. 



The plant is contracted (EPC) by Sinosteel MECC based on the RKEF process, with 18 fully-enclosed submerged arc furnaces, having capacity of 33000kVA, placed in 9 workshops. Sinosteel MECC made optimization with its own technical advantages and thus greatly improve the productivity and achieved energy saving. 


roof bin and automatic charging

Hoist charging and adjustment of  joint with hot charging bin enable the accurate positioning. In addition to this, automatic charging system is optimized with analysis of charging cycle, control modeling, proven to be efficient, low-fault, and cost-effective.



Cylinder hot air stove is  used in the project. Features effectiveness and low consumption, the hot air stove is fueled with rotary kiln flue gas, submerged arc furnace gas and pulverized coal, the mixture of which entered into rotary kiln at a properly controlled temperature, making the combustion in hot stove more complete and stable. 



The enclosed submerged arc furnace guarantees good sealing performance whilst the gas is purified by cooling, sedimentation and dedusting to clean gas with low temperature, dust and moisture and can be recycled for re-utilization in drying kiln, saving energy consumption by 25%-30%.


pulverized coal preparation

In view of the great amount of flue gas and high temperature generated by submerged arc furnace, Sinosteel MECC arrannged waste heat recovery system at the outlet of furnace gas to carry the waste heat to rotary kiln where the heat efficiency is improved, significantly lowering the consumption of pulverized coal.

rotary kiln

Other than conventional grate, the calcine screening system whose heat may elevate the heat efficiency of rotary kiln is adopted, saving 10,000 tons of standard coal per year of each production line.



Beijing ICP No.11020457 Technical support : zc-yd