In the building material industry, the fly ash is used in brick making, road and dam building, backfill project, etc. which will high save the cost and improve the project quality.
With the rapid development of powder industry, the effluent fly ash vertical roller mill is increasing year by year. If the fly ash is exhausted into the air without any dispose, it will pollute the air.
After Wednesday's 19-14 loss to the undefeated Pittsburgh Steelers, Baltimore players questioned a lack of preparation as well as some of the NFL's decisions during a time when at least one Ravens player tested positive for 10 straight days.
People wearing face masks wait in line to shop for groceries Saturday in metro Phoenix. Arizona Gov. Doug Ducey ordered residents of the state to stay at home through April 30 to slow the spread of the new coronavirus. (AP Photo/Matt York)…