The dyeing machine is used for a long time, and dirt accumulates on the inner wall of the cylinder, especially in the background that the printing and dyeing industry generally pays attention to the control of sewage discharge. In order to save water, many printing and dyeing factories form a lot of silt of dyes, oligomers, grease, lint and other substances at the bottom of the cylinder. The consequence is that the heating and cooling speed of the dyeing vat will be slowed down slightly, and there will be flying spots during dyeing. In severe cases, the dyeing equipment will be blocked and the dyeing temperature will not rise. Depending on the purpose of the overflow tank, the main components of the deposits in the tank are also different, mainly including dust, grease, agglomerated dyes, dispersants, oligomers, calcium salts, etc., and different methods are used for cleaning according to different components.
1. Removal of oligomers, high-temperature and high-pressure dyeing machines are often washed with NaOH or acid sulfite detergent, and carriers can also be added to help dissolve oligomers. Adding high-temperature-resistant dispersants can inhibit oligomers Precipitation, rapid cooling and high temperature drainage can avoid the accumulation and aggregation of oligomers.
2. The removal of alkali scale, calcium salt and lint can be cleaned with hydrochloric acid or sulfuric acid, which has a good effect, but it has a significant impact on stainless steel (corrosion-resistant stainless steel is generally used for the inner wall of the dyeing vat), and the luster of the chrome plating layer disappears completely, which is very corrosive. big. It is recommended to use Transfar's TF-105F tank cleaning agent, which does not contain strong acid and is not corrosive to the tank body, and has the best tank cleaning effect.
3. The removal of agglutinated dyes, tar and grease can be restored and cleaned by using traditional cylinder protection technology with hydrosulfite, liquid alkali, emulsifier, etc.
When cleaning the dye vat, it is necessary to add an appropriate amount of waste cloth to the machine vat to ensure that the high-speed water sprayed from the nozzle is washed through the waste cloth to the "dead corner" that is difficult to reach in normal circulation.
https://www.tonghuadyeingmachine.com/
