What are the advantages and disadvantages of membrane filter press?

Diaphragm filter press has the advantages of high pressing pressure, good Corrosion Resistance, convenient maintenance, safety and reliability, etc. It is the choice of customers in metallurgy, gas, papermaking, coking, pharmaceuticals, food, brewing, fine chemicals and other industries. In fact, everyone knows that any product is not perfect. While it has certain advantages, it will inevitably have some small shortcomings that cannot be ignored. You must also realize this. Let me briefly tell you about the diaphragm. What are the advantages and disadvantages of the Filter Press:

1. Advantages
1.1 Diaphragm Filter Press adopts Filter Plate expansion design. Pass the gas into the Filter plate to make it expand and deform, and squeeze the middle of the filter plate filter cake, thereby reducing the moisture content of the filter cake.
2.1 The gas blowback technology is adopted. When the Filter press stops feeding, the high-pressure air is passed into the filter cake of the filter plate and further dry the filtered filter residue, thereby reducing capillary water, structural water, etc. in the filter residue.
3.1 The filter plate adopts slope design. Above the inlet design of the diaphragm filter press, the filter plate passing through the slope makes the filtrate .

Full contact with the diaphragm, maximum filtration, improved filtration speed, and increased work efficiency.
4.1The structure of the filter plate. Each filter plate is composed of a combined plate and a polypropylene filter plate, and the combined plate.
It is composed of two filter frames, which is equivalent to filtering with two filter cloths at the same time, which not only facilitates the replacement of filter cloths, but also doubles the efficiency.
5.1The material of the filter plate. The filter plate of the diaphragm filter press is generally made of glass fiber reinforced polypropylene, and the membrane is made of natural rubber.
Such equipment is stable in use, and the cracking test has reached 100,000 times.
6.1 Automation. The membrane filter press equipment adopts the design of automatic washing filter cloth, which saves water and time.
It also adopts an automatic unloading design, which can basically be controlled by one person.

2. Disadvantages
2.1 However, for the diaphragm filter plate, it is still polypropylene material. The disadvantage of this material is that it is a rigid plastic material.
When the filter plate expands and retracts repeatedly, it will definitely cause damage to the filter plate, and it is easy to accelerate the material of the movable part.
Aging, deterioration or breakage, this is the pros and cons of the diaphragm filter press in the entire industry, that is, it is easy to cause damage to the filter plate and increase the equipment cost.
Equipment usage cost.
2.2The Membrane filter press is limited in reducing the moisture content of the filter cake. We know that the filter plate is fixed and sealed, even if the inside No matter how strong the pressure is, the outward expansion of the filter plate can only be limited. Generally, the expansion distance of the filter plate can reach 2cm, so The hydraulic pressure of the filter plate to the filter cake is also limited, there is a large value, so the filter plate cannot be squeezed indefinitely, and it cannot The moisture of the filter cake reaches an ideal level.
2.3.Diaphragm filter press is actually 80% the same structure as Chamber Filter Press. The diaphragm filter press is based on the phase filter press, with the filter plate replaced, and then an external device that expands the filter plate is added.

The above is the simple classification brought to you today. I hope it will be helpful to you. At the same time, thank you for your attention and support all the time!