April 24, 2023
Tags： centrifugal nozzle、spray dryer
As an important part of the spray dryer, the maintenance of the nozzle is essential. When we use the centrifugal spray dryer, in order to ensure the normal use next time, we need to clean and maintain the centrifugal nozzle. So, when cleaning the centrifugal nozzle of the centrifugal spray dryer, do you know what methods can be used? Let us discuss the specific method together.
In fact, we can choose different methods according to the specific situation to complete the cleaning of the centrifugal nozzle of the centrifugal spray dryer. Generally speaking, there are three main cleaning methods that can be used, namely dry cleaning, wet cleaning and chemical cleaning. Among them, the chemical washing method can also be divided into the cleaning of lye, acid and various detergents.
The so-called dry cleaning mainly refers to the use of brushes, vacuum cleaners, etc. for cleaning.
So, what is wet cleaning? The so-called wet cleaning actually refers to the use of hot water in the range of 60 to 80 degrees Celsius to clean the centrifugal nozzle of the centrifugal spray dryer. Alkaline washing refers to mixing sodium hydroxide (NaOH) into a solution with a concentration of 0.5-1%, then heating it to 60 to 80 degrees Celsius, washing it, and then washing it with clean water after cleaning.
In addition, the so-called pickling mainly refers to preparing a solution of nitric acid (HNO3) at a concentration of 1-2% and heating it. At this time, it should be noted that the heating temperature should not exceed 65 degrees Celsius. After that, wash the centrifugal nozzle of the centrifugal spray dryer, and finally rinse it with clean water. It should be noted that after the wet cleaning and chemical cleaning are completed, the various parts of the equipment need to be installed and sterilized at high temperature. Sterilization time is approximately 15-30 minutes.
During the cleaning process, care should be taken to protect the centrifugal nozzle of the centrifugal spray dryer. In particular, chlorine and its compounds should not be used for washing to avoid oxidation. In short, when cleaning the centrifugal nozzle of the centrifugal spray dryer, we not only need to pay attention to cleaning, but also prevent it from being adversely affected.
