Diaphragm filter press is a commonly used filtration equipment, which is widely used in various industrial fields. According to different classification criteria, diaphragm filter presses can be divided into many types. The following will introduce the characteristics and differences of several common diaphragm filter press classifications.
1. Classification by filtering method.
1.Plate-and-frame diaphragm filter press.
Plate-and-frame diaphragm filter press is one of the earliest filtration equipment, which has a simple structure and convenient operation, and is suitable for the filtration of various solid and liquid materials. Due to the small filtration area of plate-and-frame diaphragm presses, the processing capacity is relatively small, making them suitable for small-scale production. In addition, the filter cake of plate-and-frame diaphragm filter presses has a high moisture content, which requires a further reduction in moisture content.
2.Chamber diaphragm filter press.
The chamber diaphragm filter press is similar to the plate and frame diaphragm filter press, but its structure is simpler and the operation is more convenient. The chamber diaphragm filter press has a large filtration area and is suitable for large-scale production. The moisture content of the filter cake of the chamber diaphragm filter press is slightly lower than that of the plate and frame diaphragm filter press.
3.Quick-opening diaphragm filter press.
Quick-opening diaphragm filter press is a new type of filtration equipment, which is characterized by compact structure, convenient operation, large filtration area, strong processing capacity, etc. The quick-opening diaphragm filter press has a low filter cake moisture content, which is suitable for large-scale, high-efficiency filtration production.
2. Classification according to the driving mode.
1.Manual diaphragm filter press.
Manual diaphragm filter presses are suitable for small-scale, low-pressure filtration operations. Its structure is simple and easy to operate, but it needs to be manually pushed to complete operations such as filtration and discharge.
2.Automatic diaphragm filter press.
The automatic diaphragm filter press is suitable for large-scale, high-efficiency filtration production. Its structure is complex, the operation is highly automated, and it can realize functions such as continuous filtration and automatic discharge. The automatic diaphragm filter press has a strong processing capacity and can meet the filtration requirements of various high-pressure and high-viscosity materials.
3. Classification according to diaphragm material.
1.Rubber diaphragm filter press.
The rubber diaphragm filter press uses a diaphragm made of rubber material, which is suitable for the filtration of general materials. The rubber diaphragm has good elasticity and corrosion resistance, but it is easy to deform at high temperature and is not suitable for high temperature environment.
2.Fluoroplastic diaphragm filter press.
The fluoroplastic diaphragm filter press uses a diaphragm made of fluoroplastic, which is suitable for the filtration of high-temperature and highly corrosive materials. The fluoroplastic separator has excellent high temperature resistance and corrosion resistance, and can work in harsh environments such as high temperature, strong acid, and strong alkali. However, fluoroplastic separators are more expensive to manufacture.