Monday, September 2, 2013

Visit to a steel plant...

This article is not about food, but for an important item:Steel.
Can we imagine our kitchen without steel ?

There are very less places which remind us of how grateful we are to work in the IT industry.
 I did not imagine before my visit to the steel plant that I will return with this feeling.
The below description is purely layman's knowledge, not to be taken as an encyclopedia :-)

Coming straight to the place where it starts, this is the dumpyard for the raw material(Iron ore in this case)

All around the campus,you see lot of chimneys throwing out different gases,
each one too pungent to remind you of the place that you are standing.

                                           We head towards the CCO,(Coal Coke Oven) .
Coal is converted into coke by heating the prepared coal blend charge in the coke ovens in the absence of air at a temperature of 1000 deg C-1050 deg C for a period of 16/19 hours.

These are batteries, basically compartments, which converts the coal to coke. 
Here, a worker pushes back the coke , which has fallen around the compartment, back to oven.

The blast furnace is no less than like stepping on a different planet. 

    The furnace resembes a space station.

 There are 4 chambers in the furnace & tapping(process of taking out the molten iron) takes places every 4 hours.
The place is quite hot(extreme would be a lesser adjective).
 Iron is made in the Blast Furnaces by smelting iron bearing materials with the help of coke and air.
The solid charge materials like sinter, sized iron ore, coke etc. are charged in the vertical shaft of the Blast Furnace at top and hot air blast is blown through the tuyeres located at the bottom. 

The oxygen from hot air combines with the carbon of the coke, generating heat & carbon monoxide. 

These gases, while ascending upwards react with the descending charge materials. 
Eventually the charge melts producing hot metal and slag which are tapped out.

Steel is made in steel melting shop in the refractory lined vessels called LD Converters by blowing oxygen through the hot metal bath. 

While iron making is a reduction process, steel making is an oxidation process.
 This releases large quantities of gas rich in carbon monoxide along with huge amount of dust.

The entire molten steel at the plant is continuously cast at the radial type continuous casting machines resulting in significant energy conservation and better quality steel.

The end product, steel rods, empowering the country’s growing economic strength.

With this, my tour ends, leaving me besotted yet grateful 
 towards the workforce of the manufacturing industry.

No comments:

Post a Comment