FSNL is a Government of India Mini Ratna II, IMS Certified Company under Ministry of Steel. FSNL is a wholly owned subsidiary of MSTC Ltd. with authorized share capital of Rs.50 Crores and paid up share capital of Rs.32 Crores .
FSNL has over the years evolved as a pioneer organization in the field of steel mill services. The company at present is working in eight steel plants in the country, BHEL Haridwar,Rail Wheel Factory Bangaluru and offers services at a very competitive price with technology comparable to other world leaders.
SCRAP & ITS CATEGORIES
Ferrous scrap recovery is a process that reclaims ferrous metallics from slag muck and debris arising out of iron & steel making which was hitherto considered as a waste, was started in an effort to gain for the country crores worth of metallics recycled annually thereby saving precious raw - materials.
Over a period of time, it has been established that usage of ferrous scrap to produce steel leads to considerable savings in energy and natural resources.
Production of one tonne of raw steel from steel scrap when compared to BF / BOF route results in.
74% savings in energy;
90% saving in virgin materails - one tonne of scrap would lead to savings of 1.5 mt. iron ore, 0.9 mt. of coking coal and 0.5 mt. of lime stone.
40% saving in water requirements and 76% reduction in water pollution.
85% reduction in air pollution, and
97% reduction in mining wastes.
In iron and steel making an estimated metal loss ranging between 4 to 7% of metal produced occurs in each process which is termed as "scrap".
There are mainly two categories of scrap:
Primary scrap : Primary scrap is relatively clean and almost free from slag & its recovery does not require separation from slag. Its processing involves downsizing for remelting in steel making.
Secondary scrap : Secondary scrap is found mixed with impurities like slag, debris, muck, refractories etc. and requires a special and capital intensive mechanised process for recovery.
SCRAP RECOVERY PROCESS.
Manual process :
Hand - picking of scrap.
Chiselling and hammering of large pieces manually.
Semi - mechanised process :
Combination of manual operations picking and breaking to size.
Usage of small capacity handling equipments for loading
Mechanised process (mobile) : Heavy duty capital intensive processing and handling equipments like.
Crawler electric / diesel crane with magnet.
Magnetic separator (mobile)
Mechanised process (stationary) : Fixed plant with facilities of
Crawler electric / diesel crane with magnet
OPERATIONS AT SAIL & RINL PLANTS
Elements of activities :
Recovery and processing of iron and steel scrap.
Hot slag pit management at BF & SMS.
Handling and processing of iron and steel skulls and jams by lancing/balling.
Collection, processing of maintenance/mill rejects.
Handling and processing of rejected rails/ingot/slab/bloom/billet/pig iron etc.
Scarfing of defective slabs.
Crushing & Screening of LD Slag for further use at Steel Plants.
Transportation of worked through Slag after Metallic recovery.
Handling of sludge & ash, lime dust, mill scales etc.
Value addition to low grade recovered scrap through Fe-enrichment Plant.
Disposal yard management
Segregation of refractory bricks