Process Fans In Manufacturing Of Coke
                     Process Fans In Manufacturing Of Coke
Neel Rao
Writes on 
Reitz India manufacturer of PA and SA fans & Reitz 
India industrial fan manufacturers in India.
In melting iron ore, coke finds its use as fuel and also a reducing agent.  Coke is grey, 
porous and hard, and contains a few impurities along with high carbon content. Coke 
is produced when coal is baked, and it turns into carbon. The impurities in it burn off, 
leaving behind the high carbon coal. Burning coke produces little smoke, but the 
heat produced here is immense. Therefore, coke is used in smelting steel and iron. 
The manufacturing process of coke involves the extensive use of industrial fans.
Two processes are involved in the manufacturing of coke. These are the by-product 
process and the heat recovery process
By Product Process:
In this process, coal is carbonated without the presence of air in coking chambers by 
indirect heating. The impurities are to be baked at a high temperature, often ranging 
between 1000 to 2000 degrees Celsius.  Volatile materials escape from the coal mass 
as gases during this process when the required temperature is attained. These gases 
are piped to a by-product plant where they are cooled down in several steps to 
extract the by-products. 
Heat Recovery Process:
The heat recovery process involves combusting volatile matter which leads to heat 
generation. Through conduction and radiation, this heat gets across to the mass of 
coal. The heat of the flue gases is used for the production of steam and generation 
of power. In this process, only coke is obtained from the ovens and no by-products 
are recovered.
How Do Process Fans Help In Manufacturing Coke?
Primarily, three types of industrial fans are used in the manufacturing of coke. These 
include combustion fans, exhaust fans and cooling fans.
Combustion Fans
Industrial process fans are used in the coke oven plants as combustion fans. This 
ensures that the air is combusted, in burning the coal. Combustion in the coke oven 
releases hot air which bakes the coal in the oven. The combustion process gets a 
boost when these fans are used.
Exhaust Fans
Industrial process fans are used in the coking oven to eliminate the gases. Exhaust 
fans are used in removing the evolved gases that are used to form by-products or 
used in steam production and generation of power. These exhaust fans ease up the 
process of making coke. 
Cooling Fans
In the final stage of producing coke, cooling fans are used to eliminate the heat 
generated as a result of compression from the gas oven of coke. The efficiency of 
many by-product production processes is significantly improved at a lower 
temperature. Failure to use the right cooling equipment can mess up the efficiency 
of the production process. Besides, certain processes like the removal of water wash 
ammonia take place at lower temperatures. Unless the materials are cooled down, 
proper functioning will not take place. Therefore, cooling fans are used to reduce the 
temperature of the coke oven gas, connecting it directly with a cooling medium. In 
manufacturing plants, either wash oil or water is used as the cooling medium.
As can be seen above, the process of making coke involves a lot of heat and very hot 
gases. The product process requires the right equipment for the efficient and 
smooth production of coke.  In the coke manufacturing process, industrial process 
fans find several applications at various stages of the process.
About REITZINDIA
Reitz India has set a benchmark to deliver high quality fans for heavy duty industries 
which can work at precise operating conditions like high temperatures and pressures. 
Reitz offer idealistic Centrifugal Fan and Centrifugal blower design that can be used in 
all large scale process industries like cement, iron & steel, power plants, fertilizers/ 
chemicals and more.
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