Overview To design and manufacture a rotary sifter to screen 30tph of DSG (flue-gas desulphurisa - tion gypsum). Problem Plaster is manufactured using either natural gypsum (mined or quarried) or from gypsum produced as a by-product of flue-gas desul - phurisation gypsum (DSG) which is a cleaning process in use at a number of coal-fired power stations. The client secured DSG output from one of the UK’s largest Power Stations and re- quired

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