As an indispensable filter medium in the field of liquid-solid separation, filter cloth needs to be carefully selected in the selection. It is necessary to comprehensively consider the selection of the working conditions (temperature, pH, strength, filtration accuracy, etc.) and filter equipment, rather than simply choosing a filter cloth. Therefore, the selection is rigorous and very important.
Filter cloth selection
Selection of electrolytic diaphragm cloth in the electrolysis field—The selection of filter cloth in the electrolysis field mainly depends on these aspects: 1) Ensure the liquid level difference rate, which must be guaranteed. It cannot be guaranteed and cannot be selected. Electrolysis relies on liquid level difference filtering. It means that filtration cannot be guaranteed; 2) Corrosion resistance, long-term electrolysis will cause greater corrosion to the filter cloth, and corrosion resistance is a necessary condition.
Selection of desulfurization field in power plants—The selection of desulfurization filter cloth for thermal power plants mainly depends on these aspects: 1) High temperature resistance, high temperature coal burning in thermal power plants is an inevitable situation; 2) Corrosion resistance, long-term filtration of acidic substances such as calcium sulfate and sulfur dioxide, and corrosion resistance Sex is very important.
Filter cloth selection of leaf filter—The selection of filter cloth of leaf filter looks at several aspects: 1) Water permeability and filtration flow rate. Leaf filter relies on pumping fluid to provide pressure filtration, which requires high water permeability and filtration flow. ; 2) Cake removal, since high requirements for filtration flow rate, high cake removal is indispensable.
Plate and frame filter cloth selection-plate and frame filter cloth mainly depends on sealing and abrasion resistance, especially wear resistance. Long-term squeezing and filtering of plate and frame filter cloth will cause great wear on the filter cloth, and corrosion resistance is essential of.
Vertical filter cloth selection—In addition to stability, cake removal, filtration accuracy, high temperature resistance, and corrosion resistance, vertical filter cloth focuses on stretch rate and regeneration ability.
Horizontal belt type and vertical type filter cloth are comparable, mainly in terms of wear resistance, stability, cake release, stretchability and so on.
The above are the main points to look at. The specific parameters should be determined according to the respective working conditions. If you don’t understand, it is recommended to choose a filter cloth factory that provides pre-sales services to help select the model.
