The coal will bring great impact to the equipment during transportation  in the coal handling system of power station,so the alumina ceramic tiles is not available and they will fall off by large area.

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

Because the lined ceramic tube is one piece, the slurry could n’t permeate through it, moreover, the ceramic tube has high hardness and the process by isostatic pressing dry powder is favorable to the uniformity of ceramic crystal structure, so the its wear resistance is better than ceramic tile’s with the same material.

The weakest place is the gap between each sticked tiles during material handling. The material grains not only wear the pipe but also have impact on it. This is why the pipelines lined by tiles are easily worn out and fallen off.

The experiment shows that the service life of ceramic tube is at least 5 times longer than ceramic tiles of the same thickness.