Long4


 * Extreme Longfield group 4 woooo - Jack,Carter,shanks,Grokie**

The main three raw materials used to make iron are: Iron ore limestone coal. The raw material come from mines, they are transported via trains and boats to the plants. the coal is burned to to a fine powder called coke wich is then burned in the blast furnace to get it to the right temprature
 * name the main three raw materials used to make iron?**
 * · Where do the raw materials come from and how are they transported to the plant?**
 * · How and why are the raw materials processed before they are used in the blast furnace?**

the three materials go through a number of processes such as Coal Bedding & Blending,Coke Ovens,Iron Ore Bedding & Blending,Blast Furnace,Sinter Plant,Hot Rolling,Basic Oxygen Furnace and then casting mainly the iron-making process is on the blast furnace The Blast Furnace is used to melt iron ore to get iron, which is refined to make steel. The process involves charging coke, iron ore, sinter and limestone into the top of the blast furnace as hot air is blown at the bottom
 * · What role does each of these three raw materials play in the iron-making process?**

   How many kg of scrap can be melted with the 100 kg of hot metal making steel of 1650°C?  §  How many kg of steel are produced?  §  If we want to make 320 tons of this steel how many tons of hot metal and scrap are required?  §  How many cubic meters of steel are that?  §  Suppose a steel ladle has an internal diameter of 4 meters. What is the required height of the ladle if the steel surface must be 50 cm below the top of the ladle?

1. 2000 Kg of scrap metal can be melted by 100 kg of hot metal making steel of 1650 degrees 2.

A horizontal section that is poures into is 6m long the steel flows at 0.1 /s How long does it take to flow along it ? is takes 60 seconds to flow along it.

In this section we try remove as many inclusions as possible. these would set in the steel and make it weak. so, inclusions have have only 60 seconds to ise up out of the mixture. What is the minium rising velocity to get out in 60 seconds? 78cm is the minuim rising velocity

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