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Sep 24, 2024
In solid-liquid separation equipment, the horizontal belt vacuum filter is widely used in industries such as chemical, metallurgy, and environmental protection due to its strong continuity and high processing capacity. The filter cloth, as its key filtration medium, has performance that directly determines the filtration effect and the operational stability of the equipment.
The horizontal vacuum belt filter operates by placing filter cloth over a rubber belt, utilizing the negative pressure generated by the internal vacuum system to perform continuous filtration. The filtrate is drawn out by vacuum, while the filter cake moves with the cloth to the discharge zone for separation. During operation, the cloth is continuously driven by a motorized reducer, but due to material friction and particle impact, the cloth is prone to shrinkage, abrasion, or even tearing, which reduces filtration efficiency and service life.
A high-quality vacuum belt filter cloth should possess three core performance attributes:
Filtration Performance: Including filtration precision and air permeability, which determine the cleanliness of the filtered liquid.
Operational Performance: Characteristics such as acid and alkali resistance, and temperature resistance, which ensure stable performance under specific working conditions.
Mechanical Performance: Such as tensile strength and fold resistance, affecting the compatibility of the cloth with various types of filtration equipment.
Moreover, the structural design of filter cloth has become increasingly refined, including single-layer, double-layer, or multi-layer composite weaving to meet the filtration requirements of materials with different particle sizes.
When selecting filter cloth, it is essential to match it with the specific process parameters, such as material characteristics and working temperature. Regularly checking the tension and cleanliness of the cloth can effectively extend its service life and improve the efficiency of the filtration system.
In conclusion, although small in size, the filter cloth plays a central role. Scientific selection and standardized maintenance are key to ensuring the efficient operation of horizontal belt vacuum filters.
