What is the difference between the two types of filter presses?

As important equipment in the field of solid-liquid separation, diaphragm filter press and belt filter press each have unique characteristics and advantages. The following is a detailed analysis of the differences between the two filter presses.

1. Working principle.

Diaphragm Filter Press: The material is drawn into a closed state by the pressure provided by the pump, and then compressed and filtered in the chamber in the middle of the filter plate.

Belt filter press: Solid-liquid separation is achieved through the tension of the track and the extrusion of the pressing roller. The dehydration process includes four stages: pretreatment, gravity dehydration, wedge-shaped area pressure dehydration, and pressing dehydration.

2. Working cycle.

Diaphragm Filter Press: The general working cycle is 1 to 2.5 hours per cycle, and then intermittent operation.

Belt filter press: It can achieve 24-hour continuous operation and discharge materials while filtering.

3. Mud cake moisture content.

Diaphragm Filter Press: The mud cake moisture content is about 75%, and if a high-pressure diaphragm filter press is selected, it can reach about 65%.

Belt filter press: The moisture content of the mud cake is about 85%.

4. Advantages.

Diaphragm Filter Press: Simple operation, can achieve open flow and undercurrent drainage, and convenient for cleaning the filter cloth.

Belt filter press: Large processing capacity, low energy consumption, and small footprint.

In general, Diaphragm Filter Press and belt filter press each have their own unique advantages and applicable scenarios. Which equipment to choose depends on specific process requirements, material characteristics, and economic benefits.

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Nina

Email: nina@filtrationchina.com

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