Compare the characteristics of plate and frame filter press

Comparison of Plate and Frame Filter Press vs. Chamber Filter Press

The plate and frame filter press is a filtration unit composed of a filter plate and a filter frame. It can withstand lower filtering pressure and is generally used for filtering materials with fewer granular objects, often applied in precision product filtration. One key advantage of the plate and frame filter press is its higher filtration quality, as the filter cake can be backwashed twice, making it purer.

Compared with the chamber filter press, the filter space is larger, and the filtration process is faster. The filter cloth is easier and quicker to replace, which improves utilization and filtration efficiency. The cycle time is longer, allowing for more storage space for filter cakes within the same filter plate size, resulting in a longer intermittent cycle time. Additionally, the plate and frame filter press is lighter than the chamber filter press, making it easier to transport and move. Due to these advantages, its price is relatively higher.

The filter plate of a chamber filter press is thicker than that of a plate and frame filter press. When two filter plates are pressed together, they form a filter chamber that holds granular objects separated by the filter cloth. The feed hole is located in the center of the filter plate, making it suitable for materials with more granular content. The chamber filter press has the advantage of preventing bias pressure in each filter chamber, reducing the likelihood of filter plate damage. It also offers faster filtration speed, convenient slag unloading, high filtration pressure, and low liquid content in the filter cake. Additionally, it supports automatic plate-pulling unloading and can be manufactured in larger sizes for broader applications.

The chamber filter press has several advantages, including a lower price, stable performance, and higher durability—generally lasting one year longer than the plate and frame filter press. It is more consistent in operation, facilitating future intelligent advancements. The filter cloth is better protected, leading to a longer service life, and automatic cleaning is more convenient. Furthermore, when replacing the filter plate, the standardized design ensures no special arrangement is required.