Application of Belt Filter in Vegetable Residue Filtration

Belt filter is widely used in vegetable residue filtration, especially for treating organic waste residue with high water content, high fiber content, and coarse particles. Vegetable residue is a by-product of fruit and vegetable processing. If it is not handled in time, it will not only take up space but also easily rot and stink, affecting the environment. The belt filter can efficiently separate the solid and liquid of vegetable residue, realizing resource utilization or volume reduction. The following is the detailed application process of the belt filter in this scenario.

Application Process of Belt Filter

Vegetable crushing and pretreatment
After crushing the vegetables, add organic flocculants such as PAM/PAC according to the moisture content and structure of the vegetable residue to make the fibers form large particle flocs and improve the dehydration efficiency.

Gravity dehydration area
The material is evenly spread on the filter belt, relying on its own gravity and filter belt filtration to initially remove free water.

Wedge-shaped area
The upper and lower filter belts gradually close together, and the pressure effect begins. Slow extrusion does not destroy the floc structure and further removes interstitial water.

Extrusion dehydration area
The filter belt is repeatedly squeezed between multiple rollers to achieve deep dehydration. The moisture content of vegetable residue can be reduced from the original 95% to about 65%; the filter cake gradually sets and hardens, which is convenient for subsequent processing or transportation.

Unloading and collecting the filter cake
After filtration, the scraper device automatically separates the vegetable residue from the filter belt. After unloading, it can enter the screw conveyor or belt conveyor to the composting area, feed processing area, or temporary storage point.

Filter belt cleaning system
After completing a filtration cycle, the filter belt is automatically washed by the high-pressure spray system to ensure the permeability of the filter belt, prevent blockage, and extend the service life of the filter belt.

The Core Advantages of Belt Filter in Vegetable Residue Treatment

Continuous operation, strong processing capacity
Belt filter is a continuously working dehydration equipment, suitable for large-scale vegetable residue treatment. For example, in the process of vegetable dehydration, juicing, pickling, etc., a large amount of residue is generated every day. The belt filter can achieve continuous feeding, filtration, and residue discharge.

High dehydration rate, low moisture content of residue
The multi-stage pressing structure can effectively reduce the moisture content in vegetable residue. The moisture content can be greatly reduced after filtration, which is convenient for subsequent composting, feed, or incineration.

Strong adaptability, suitable for a variety of vegetable residues
Whether it is leafy vegetables (such as spinach and celery), root vegetables (such as radishes and carrots), or fruit residues, the belt filter can adapt to the different characteristics of the material by adjusting the operating parameters (such as belt speed, tension, and pressure).

Low energy consumption and stable operation
The belt filter is mainly based on mechanical pressing, does not rely on high-energy thermal drying, has low operating costs, a compact equipment structure, and convenient maintenance. It is particularly suitable for use in food processing companies and fruit and vegetable processing plants.

Conclusion

The belt filter has the advantages of continuous operation, low energy consumption, and strong adaptability, showing extremely high practical value in the dehydration of crushed vegetable residues, greatly reducing the subsequent processing costs and improving the resource utilization efficiency of waste.

Application of Belt Filter in Vegetable Residue Filtration