The automatic filter press is to remove the subtle impurities in industrial production and reduce the loss of impurities on the product. So the automatic diaphragm filter press machine is also known as the security filter. At present, the main application fields of the automatic diaphragm filter press include food, petroleum, printing and dyeing, environmental protection, etc. It is an ideal equipment for all kinds of liquid filtration, clarification and purification.
However, due to the large number of automatic filter press models, different types of equipment are suitable for different fields. At the same time, different companies have different requirements for the filtration precision of the equipment. So consumers need to check the following parameters in the selection process of equipment. Consider the impurity particle size to be intercepted, according to the process requirements of the medium flow. Various specifications of the screen can intercept particle size check the table “filter specifications.”
Import and export diameter
In principle, the import and exit diameter of the filter should not be less than that of the matching pump, which is generally consistent with the inlet pipe diameter.
The material of the filter
The material is with the same material as the connected process pipeline. And the filter of cast iron, carbon steel, low alloy steel or stainless steel are for different service conditions. At present, the shell of the automatic filter press on the market is generally made of stainless steel. And the internal use of PP melt-blown, line burning, folding, titanium filter, activated carbon filter and other tubular filter elements as filter elements. In order to meet the needs of industrial production, different types of automatic filter presses are also very different in the manufacturing process. And filter elements, which need to be paid attention to in the purchase.
Automatic filter press filter cloth can be divided into monofilament filter cloth and multifilament filter cloth. Monofilament refers to the whole yarn woven by a single long silk, as the name suggests. Monofilaments filter cloth is the whole block of filter cloth woven by monofilms. The surface of the monofilament filter cloth is smooth. It is not easy to block when filtering, and the cake is easy to peel off. The multifilament filter cloth composed of multiple strands of single fiber is multifilament filtration cloth. It is more suitable for filtering materials with smaller particles and better filtration accuracy.
Types of Filter Fabric
In terms of materials, there are many different types of filter fabrics, such as polyester filter cloth, polyamide fiber filter fabric, polypropylene filter cloth and vinylon filter cloth. Select the appropriate material according to the material to be filtered. To strong acid strong alkaline slurry can choose polypropylene filter cloth. But if the slurry temperature is high, then polypropylene filter fabric is not applicable. In terms of high temperature resistance, polyester filter cloth can be used. And polyester filter fabric can also be used to filter slurry containing sharp particles, and the wear resistance is better. Automatic filter press filter cloth installation should also pay attention to the way, in the case of installation is not in place not only the filter effect is greatly reduced, will also damage the filter cloth and even equipment.