Difference between Plate and Frame Filter Plate and Chamber Filter Plate

Filter presses come in different sizes and are suitable for different occasions. At the same time, there are different types of filter plates, such as chamber filter plates, plate and frame filter plates, membrane filter plates, etc. They have some differences.

For example, chamber filter plates can withstand higher pressure than plate-and-frame filter plates. Ordinary filter plates can withstand 6 kg pressure, but special chamber filter plates can withstand 12-15 kg pressure. In addition, the plate-and-frame filter plate was designed earlier, and chamber filter plates are now mostly used. Plate-and-frame filter plates are only used in some special industries. This article will introduce the differences between plate and frame filter plate and chamber filter plate.

The Specific Differences Between These Two Filter Plates

Different filter plate structures

Chamber filter plates are usually thicker than plate and frame filter plates and have depressions on both sides. Every two identical filter plates form a filter chamber for accommodating materials. The filter cloth is fixed on the surface of the filter plate, and the solid-liquid separation is achieved through the filter cloth.

As the name implies, the plate-and-frame filter plate consists of a filter plate and a filter frame. The filter plate and the filter frame form a filter chamber, and the filter cloth is positioned between the filter plates and the filter frame to facilitate solid-liquid separation.

Different feed port positions

The feed port of the recessed filter plate is typically situated in the center of the filter plate. It can be customized at the top if there are special requirements. The filtered liquid enters the filter chamber through the feed port. The liquid is separated into solid and liquid in the filter chamber, the filter residue remains in the filter chamber, and the filtrate flows out from the drain port below the filter plate through the filter cloth. This design of the recessed filter plate can make the feed evenly distributed in the filter chamber, improving the filtration efficiency and effect.

The feed inlets of the plate and frame filter are usually located at the four corners of the filter plate. The filtered liquid enters the filter chamber through the intersection. However, the corner hole design may cause uneven feed distribution and affect the filtering effect.

Different ways to install filter cloth

The filter cloth of the chamber filter plate is laid flat through the hole in the middle and can be tied or fixed to the surface of the filter plate with a tie.
Since the plate and frame filter plate have no hole in the middle, the two-piece filter cloth is placed on the filter frame and fixed.

Different filtering effects

Since the recessed filter plate itself forms an independent filter chamber, it has good sealing performance and can withstand higher filtering pressure to ensure filtering efficiency and effect. Due to the relatively integrated structural design, the operation is relatively simple, and the degree of automation is high.
Since the filter frame provides open space, the feed distribution may be uneven, affecting the filtration effect. In addition, the plate and frame filter plate require more manual operation and cannot be operated automatically.

Conclusion

In summary, chamber filter plates and plate and frame filter plates have their own advantages and disadvantages in terms of structure, feed position, filtration effect, etc. The choice of filter plate should be determined based on the specific application requirements and the nature of the processed material.

Difference between Plate and Frame Filter Plate and Chamber Filter Plate