The valve in the desulfurization system can change the flow during the switching process, so the slurry include grain at high speed will wear out the pipe on both ends of valves. The liquid in the pipeline contains much sulfite which is very corrosive, usually nonmetallic pipes like rubber tubes and pvc pipes are used to resist corrosion. But the wear resistance of these tubes are poor that the pipeline at the ends of valves always worn out. The integrated alumina ceramic pipes which resist abrasion and corrosion are developed to well solve the problems of abrasion