- TMP bleaching with sodium hydrosulfite in refiner is practiced in the mill.The advantage and corrosion problem,the reasons of corrosion and the solution measure are discussed.
- TMP bleaching with sodium hydrosulfite in refiner is practiced in the mill.The advantage and corrosion problem，the reasons of corrosion and the solution measure are discussed.
- By means of reaserched the friction pair surace failure and the material used in secondary seal ring,the leakage reason of mechanical seal and their solution measure are ffound.
- Changes in view of DTL/1000 belt type conveyer in movement process to drum changing is bent at knees the phenomenon to axis to carry on analyzes and proposes concrete solution measure.
- The collapse cause of the prilling melt urea solution pipe was analysed from the point of temperature difference and external pressure vessel, and the solution measure has been presented also.
- Practice indicates that the problems are universal and the solution measures are feasible.