The box filter plate offers the following advantages compared to the plate and frame filter plate: it has a higher structural strength, is less prone to damage, and can withstand greater filtration pressure. It is also easy to operate. During the unloading and pulling process, only the box filter plate needs to be pulled, which saves half the time compared to the plate and frame filter press. The feed port of the box filter press is located in the middle of the filter plate, with a large orifice that is less likely to clog. The feed port of the plate and frame filter press is located at the top of the filter plate, which is not as large as the box filter. The longer filtration process is more susceptible to uneven pressure damage to the filter plate. Jiuding Filter Press

Based on different clamping methods, the Jiuding Filter Press can be categorized into jack clamping, mechanical clamping, and automatic pressure maintenance clamping. In practical applications, the jack clamping filter press is labor-intensive during operation, lacks pressure display, and is only suitable for small-area filter presses.

The Jack-type Pressure Filter is characterized by its simple structure, ease of operation, and no need for power supply. However, it tends to leak when used on larger surface area filters, so it is generally used only for filters with a surface area of 1-40 square meters. The Jouding Machinery Pressure Filter is known for its ease of operation and low labor intensity, making it suitable for filters with a surface area of 10-100 square meters.

The automatic pressure filter press features easy operation, low labor intensity, and high efficiency, suitable for filter presses with large filtering areas, typically 4-500 square meters or more. It is divided into open flow and closed flow based on the outlet method of the filtrate. Closed flow refers to the filtered clear liquid flowing out through the outlet and then through a connected pipeline directly to the designated location. Closed flow filtration is used for materials that are volatile, toxic, have a strong odor, or are corrosive and cannot be exposed to the outside. Open flow filtration means the filtered clear liquid does not flow out through the outlet but directly from the water nozzles on each filter plate. Open flow filtration offers the advantage of being直观 and easy to detect if a filter cloth is damaged (usually indicated by mixed liquid output). If a filter cloth is found to be damaged during the filtration process (usually indicated by mixed liquid output), the nozzle can be closed to continue filtering, and the filter cloth can be replaced or repaired after one work cycle is completed. Depending on whether the filter cake requires washing, there are two types: washable and unwashable filter presses. Generally, unwashable filter presses are chosen unless the filter cake indeed requires washing. Based on the required moisture content of the filter cake, there are two options: blowing and non-blowing. Generally, non-blowing is chosen unless the filter cake indeed needs to be very dry.