Extraction filter cloth cleaning procedures
1 cloth cleaning
2 lotion preparation
3, respectively, to the four washing bucket water volume to four molecules.
4 In the barrel add concentrated acid (or concentrated alkali), the concentration of cleaning fluid deployment to
1.5% -2.0% or so.
5 into the steam, alkali heating temperature to 75 ℃ ± 5 ℃, acid heating temperature to 65 ℃
± 5 ℃, hot water heating temperature above 80 ℃, to reach the heating temperature, turn off the steam.
6 washed
7 The filter cloth into the silk washing machine clean with water.
8 pickling
9 After washing, the filter cloth remove and drain.
10 The filter cloth immersed in hot acid, soak for 1 hour.
(Addtime：2018-1-30)
