Aug 03, 2011 · Wednesday, August 3, 2011. During the process of manufacture of sponge iron, coal injection plays a very vital role in maintaining the product quality. Due to highly endothermic nature of Boudouard reaction, heat has to be continuously supplied in entire reduction zone of rotary kiln. Generally the length of reduction zone is 6070% of total ...
Also, the process conditions in a sponge iron rotary kiln are dynamic in nature. Hence, the quality keeps fluctuating and is not a constant value. A mathematical mass ...
GasBased Process: This process utilizes natural gas as the reducing agent. Natural gas is reformed to enrich with H2 and CO mixture and this enriched and reformed gas mixture is preheated in gasbased process. A vertical retort is used for the reduction of iron ore as against a rotary kiln in coal based sponge iron process.
Mar 16, 2013 · Fig 2 Principle of direct reduction process. Gas based process. In the gas based reduction processes, a vertical shaft kiln is used in which iron ore is fed into the top of the kiln and finished sponge iron is drawn off from the bottom after cooling it so as to prevent its reoxidation.
Jul 31, 2013 · Sources of Air Pollution Process 1. Combustion of coal in the preheating zone, kiln 2. Oxidation of iron ore in the process zone, kiln 3. Flue gas from the kiln through the upper end. 4. Dust of char, unburnt lime, sulphur, alumina and others through the discharge end. 5.
ensp0183enspRotary kiln for sponge iron 1. rotary kiln Appliions A rotary kiln is ideal for calcining highgrade cement in cement plants. It is also commonly used in the production process of alytic agent, molecular sieve and zinc oxide, etc. Complete Process Of Sponge Iron Kilns. ppt for rotary kiln process of making sponge iron ...
Jun 19, 2013 · Rotary Kiln Process of Making Sponge Iron – New Age International (iv) System of introducing controlled . sponge iron in a rotary kiln is presented in . A concise schematic representation of a rotary kiln sponge iron plant .. Trends point to substantial increase . Jindal Steel and Power Limited (JSPL) in . »More detailed