Mohan Kumar inaugurates key facilities at RINL
VIS News Service
Visakhapatnam: There was a flurry of activity at India’s premier steel plant, Rashtriya Ispat Nigam Ltd, last week.
Mr G Mohan Kumar, IAS, Secretary to Govt. of India, Ministry of Steel on July 30 inaugurated the upgraded Blast Furnace -1 Godavari by Blowing-In and unveiling the plaque to mark. This was followed by inauguration of the sinter heat recovery power plant under the Green Aid Plan of Japan.
Later, inaugurating a seminar at Ukkunagaram, Mr Mohan Kumar, appearing visibly impressed by the facilities and work culture at the steel plant, said RINL was a jewel in the crown of India’s steel industry.
”This is one steel plant that had to cope with various adverse conditions and even without captive raw material sources, yet it faced these odds and maintained profitability and moving significantly towards sustainability,” he said.
He observed that RINL has set a shining example in water usage and emerged as one of the “Lowest Water Consumption Plant” in the world.
On the national level, the Steel Secretary said that demand for steel was bound to increase, which necessitated increase in steel capacity.
Mr P Madhusudan, CMD, RINL, said that the steel industry was energy intensive, accounting for about 4 to 5 per cent of the total greenhouse gases. To combat the climate change, a paradigm shift is required from an economy dependent on fossil fuels to an economy powered by renewable energy and reduced greenhouse gas emissions.
“There is a dire need for the steel industry to focus its efforts on reducing the greenhouse gas emissions and associated global warming phenomenon. Energy accounts for about 40 to 45 per cent of the manufacturing cost of steel. Emission reduction would therefore not only help in combating climate change, but also facilitate in reducing the cost of steel making,” Mr Madhusudan said.
Mr Umesh Chandra, Director (Operations), Mr TK Chand, Director (Commercial), Mr PC Mohapatra, Director (Projects), Dr GBS Prasad, Director (Personnel), B Siddhartha Kumar, IFS, CVO, Mr Shosaku Umezawa, Representative Director, JP Steel Plantech and other senior officials were present.
Indeed, the Navratna Company has been a forerunner in adopting energy efficient technologies right from its inception stage and has been continuously striving to improve its energy performance. It was the first to adopt the Coke Dry Quenching; Top Pressure Recovery Turbines; and 100% Continuous Casting technologies in the country which has helped to emerge as the most energy efficient plant in the country. The plant is also one of the highest waste energy recovery plants in the country.
The repairs include revamping and up gradation of the technologies of the furnace incorporating latest technologies in Blast Furnace. Total cost of modernization including all auxiliaries is around Rs.600 Crores.
The Blast Furnace-1 “Godavari” was commissioned in 1991 and at that point of time this was the largest BF with 3200 cum volume and production capacity 1.8 million tones. This furnace was consistently producing above the rated capacity during the last decade. As per the Russians who have designed this furnace, complete relining of the furnaces is to be done after 16 years of operation or production of 25 million tones. Before shut down of the furnace for repairs, more than 37 million tones of hot metal was produced and furnace was in operation for about 23 years. This could be achieved only due to good operational and maintenance practices being adopted by VSP management.
The volume of the furnace is being increased from 3200 cum to 3800 cum by introducing copper cooling plates and latest generation cast iron cooling plates in the place of existing normal cast iron cooling plates. Further latest improved refractories are being used so that the inner volume of the furnace can be increase by about 600 cum. With state of art of furnace control systems with new additions and up-gradations, the techno-economic parameters will be more favorable resulting in low reduced cost of hot metal production apart from increasing production from the furnace by 0.5 million tones from the present 2 million tones.
The sinter heat recovery power plant was set up at a cost of Rs 300 crore. This project introduces a sinter cooler waste heat recovery system to India’s iron and steel industry in order to demonstrate Japan’s advanced energy efficient technology and then disseminate the technology throughout India.
The system recovers sensible heat from hot air emitted by the cooling process of two sinter coolers located downstream of two sinter machines. The heat is captured by heat recovery hoods and then routed to a heat recovery boiler to generate super-heated steam, which is converted to electricity by a turbine connected to a generator.
This demonstration project was carried out with support provided by Japan’s Ministry of Economy, Trade and Industry (METI).