What are the cleaning methods of sintered felt?
The cleaning method used for sintering felt cleaning depends on the company's own production conditions and the conditions of the filter equipment.
Sintered felt is widely used in various industries because of its high strength, good rigidity, high temperature resistance, stable filtration efficiency, easy cleaning and reuse. Among them, the cleaning method of sintered felt is simple and time-saving, so as to achieve a high reuse rate, which is a common concern of customers. Now, we introduce several cleaning methods of sintered felt, customers can choose according to your actual situation!
There are three cleaning methods for sintered felt: chemical cleaning, ultrasonic cleaning and heat treatment cleaning.
First of all, the chemical cleaning method is the common acid-base cleaning solution, which can be used to clean and collect sintered felt.
Then there is the ultrasonic cleaning method. Ultrasound is an energy wave that can be continuously pressurized and expanded. When applied to a liquid, air pockets are formed and continuously ruptured cavities clean the sintered felt. This is the same as the principle of ultrasonic cleaning the sintering net.
After the heat treatment cleaning method of sintered felt, the hair is usually washed when the chemical cleaning method is ineffective. Common heat treatment cleaning methods include vacuum pyrolysis, heating furnace, liquefying bed and hot salt bath.
Among them, ultrasonic cleaning and reverse water cleaning are common methods.
Reverse water cleaning (also known as backwashing) is to backwash inert gases (such as nitrogen) in the opposite direction of normal filtration. The sintered felt is particularly suitable for backwashing due to its relatively smooth and easy cleaning. In addition, it is not necessary to take it out of the filter during the backwash process, and it can be cleaned directly in the filter unit. In order to carry out ultrasonic cleaning, it is necessary to take it out of the sintered felt and clean it with an ultrasonic cleaner. Compared with backwashing, ultrasonic cleaning has a great impact on production efficiency, but ultrasonic cleaning is very clean, which can ensure the cleaning of filter unit.
It should be noted that after cleaning the sintered felt, a bubble point test is required to check its integrity. Gender and pressure drop were measured. Customers also need to decide the specific method according to their actual production situation.