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Improvement of Power Generation by Recovering Energy from Exhaust Gases of Blast Furnace by Rectifying the Existing Problems

Author(s):

Vinay Kumar D S , Government engineering college, hassan; Dodda Hanumesha, Government engineering college, hassan

Keywords:

BF, Gas Expansion Turbine, Power Generation, Modification Of Bypass Valve DN 1600mm And Dowel Pin

Abstract

The Blast Furnaces in steel plant operates at a high top gas pressure. The gases coming out of the furnace are consisting of huge amount of dust particles and also moisture content.. Cleaned gases are used in the steel plant for heating purposes at relatively low pressures. In this process, a large amount of pressure energy is exhausted across the valve. So because of this reason, GET (GAS EXPANSION TURBINE) mechanism which involves recovery of the pressure energy of the gases from the top of a blast furnace is used to drive the turbines in turn to generate the power. In the existing plant JSW Steel Limited, Bellary District, Karnataka (Where this project work is carried out) some problems such as the mechanical obstruction caused by entry of foreign material through gas cleaning plant, decreasing of flow of blast furnace gases, increasing of inlet blast furnace gas pressure from 1.95 bar (Normal) to 2.15 bar, non-opening of guide vanes beyond 75%, nonlinear of guide vane actuators and also non-working of water spray nozzles inside the turbine; are occurred which result the decrease in the power generation from rated 12.2 MW to 10 MW. So, in the present work, certain methods and modifications are used to resolve the above mentioned problems the power generation. Process is recovered which is economically remarkable by the present work.

Other Details

Paper ID: IJSRDV3I90622
Published in: Volume : 3, Issue : 9
Publication Date: 01/12/2015
Page(s): 962-966

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