Life Enhancement of Cooling Circuit Non-Return Valve in Slag Granulation Plant

Deadline: 2020-01-17
Award: INR 10,00,000
Open to: Everyone*

Slag granulation plant granulates molten Blast Furnace (BF) slag into a sandy non crystalline structure material which is then used in cement and construction industries. Due to rapid cooling and the impact of water pressure, molten BF slag is granulated into vitreous sand like particles which form a slurry mixture with water. This slurry mixture of water gets pumped into cooling circuit where NRVs (Non-Return Valve) are used to resist return flow and allows the pump to start in no load condition. NRVs used to fail due to abrasion caused by the slurry mixed water and hence, affects the operation of pumps. We are searching for a suitable NRV or any alternate arrangement which improves working life of NRV.