Selection of filter plate material for plate-and-frame filter presses.
Plate and frame filter press is a kind of filtration equipment widely used in the field of solid-liquid separation, and the selection of filter plate material has an important impact on the performance and service life of the equipment. This article will introduce the selection method of filter plate material for plate and frame filter press.
First, the material of the filter plate.
The filter plate materials of the plate and frame filter press are usually polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), etc. These materials are corrosion-resistant, abrasion-resistant, high-temperature resistant, and suitable for a variety of different filter media and filtration conditions.
1.Polypropylene (PP).
Polypropylene is a non-toxic, odorless, highly transparent, heat-resistant, and chemical-resistant material. It has excellent mechanical properties and good processing properties, and is suitable for filtering various acid, alkali, salt and other corrosive media.
2.Polyethylene (PE).
Polyethylene is a material with excellent chemical resistance and mechanical properties. It has excellent low temperature resistance and good wear resistance, and is suitable for filtering various organic solvents, oils and other media.
3.Polyvinyl chloride (PVC).
Polyvinyl chloride is a material with excellent chemical resistance and electrical insulating properties. It has excellent wear resistance and weather resistance, and is suitable for filtering various acid, alkali, salt and other corrosive media.
Second, the performance requirements of the filter plate.
When selecting the filter plate material for the plate and frame filter press, the following performance requirements need to be considered:
1.Corrosion resistance: The filter plate material should be able to resist the chemical corrosion in the filter media to ensure the long-term stable operation of the equipment.
2.Abrasion resistance: The filter plate material should have good wear resistance, be able to withstand the friction and impact in the filtration process, and prolong the service life of the equipment.
3.High temperature resistance: For occasions that require high-temperature filtration, the filter plate material should be able to withstand high temperature to ensure the normal operation of the equipment.
4.Processability: The filter plate material should have good processability, which is convenient for manufacturing and processing into filter plates of various shapes and sizes.
5.Environmental protection: When choosing filter plate materials, environmental protection materials should be given priority to reduce the impact on the environment.
3. The selection method of filter plate material.
When selecting the filter plate material for the plate and frame filter press, the selection can be based on the following methods:
1.Selection according to the nature of the filter medium: select the appropriate filter plate material according to the chemical and physical properties of the filter media to ensure the normal operation and service life of the equipment.
2.Selection according to filter conditions: Select suitable filter plate materials according to filter conditions such as temperature, pressure, flow rate and other factors to ensure the stability and reliability of the equipment.
3.Selection according to the use of the equipment: according to the use of the equipment such as solid-liquid separation, oil-water separation, etc., select the appropriate filter plate material to meet different use needs.
4.Selection according to environmental protection requirements: When selecting filter plate materials, environmental protection materials should be given priority to reduce the impact on the environment. At the same time, for the occasion that needs to be reused, the material that can be reused should be selected.
In short, when selecting the filter plate material of the plate and frame filter press, it is necessary to comprehensively consider various factors according to the actual situation and select the appropriate filter plate material to ensure the normal operation and service life of the equipment. At the same time, attention should be paid to the maintenance and maintenance of the equipment during the use of the equipment, and the damaged filter plates and parts should be replaced in time to prolong the service life of the equipment and improve the operation efficiency of the equipment.