Application of filter cloth in aluminum ash treatment - horizontal vacuum belt filter

Release time:

2024-11-05

In the aluminum production process, aluminum dross is an unavoidable byproduct. Aluminum dross contains aluminum, alumina, and other impurities, which need to be properly treated to recover valuable components and reduce environmental impact. During the treatment of aluminum dross, a horizontal vacuum belt filter combined with specialized filter cloth can significantly improve solid-liquid separation efficiency, making it an important technical means for the resource utilization of aluminum dross.

In the aluminum production process, aluminum ash is an unavoidable byproduct. Aluminum ash contains aluminum, alumina, and other impurities, which need to be properly treated to recover valuable components and reduce environmental impact. During the treatment of aluminum ash, a horizontal vacuum belt filter combined with specialized filter cloth can significantly improve solid-liquid separation efficiency, making it an important technical means for the resource utilization of aluminum ash.

1. Filtration requirements in the aluminum ash treatment process

The main components of aluminum ash are aluminum and alumina, which have fine particles and certain corrosiveness. In the filtration process of aluminum ash, the filter cloth not only needs to have good corrosion resistance to withstand strong alkaline or acidic environments but also needs to possess high strength and wear resistance to adapt to high-load operating conditions. The excellent performance of the filter cloth can help improve the forming effect of the filter cake, reduce moisture content, and ultimately enhance recovery efficiency.

2. Advantages of horizontal vacuum belt filters

Horizontal vacuum belt filters are particularly suitable for large-scale processing of solid-liquid mixtures like aluminum ash due to their continuous operation characteristics. Their main advantages include:

Continuous operation: It can continuously perform filtration, filter cake washing, slag discharge, and filter cloth cleaning on a single production line, greatly improving production efficiency.

Efficient filter cake washing: By adjusting vacuum pressure and washing water flow rate, it can effectively wash the filter cake, remove residual impurities, and enhance the effectiveness of aluminum ash treatment.

Stability and flexibility: The equipment operates stably with adjustable parameters, allowing it to adapt to different treatment stages and the diversity of aluminum ash.

3. Selection and key performance of filter cloth for filter presses

The filter cloth used in horizontal vacuum belt filters must possess the following key performances:

Chemical corrosion resistance: The filter cloth needs to withstand strong acid or strong alkaline environments that may occur during aluminum ash treatment for a long time to ensure filtration effectiveness and service life.

High tensile strength and wear resistance: With a large amount of aluminum ash processed and high workload, the filter cloth must have high tensile strength and wear resistance to avoid damage and ensure production continuity.

Good air permeability and filtration precision: The filter cloth must maintain high air permeability while having excellent filtration precision, effectively retaining aluminum ash particles while ensuring smooth passage of filtered liquid.

4. Xiamen Shadias filter cloth solutions

The specialized filter cloth provided by Xiamen Shadias is designed specifically for horizontal vacuum belt filters to meet the special needs of aluminum ash treatment:

Customized materials and weaving methods: Shadias's filter cloth has high chemical resistance and excellent tensile strength, capable of stable long-term operation in the highly corrosive environment of aluminum ash treatment.

Outstanding filtration effect: Shadias's filter cloth combined with the efficient filter cake forming and washing process of vacuum belt filters can achieve uniform filtration with low moisture content in the filter cake, significantly enhancing the purity of aluminum ash recovery.

High cost-effectiveness and durability: Through optimized design, Shadias's filter cloth balances cost-effectiveness while improving service life, helping users effectively reduce maintenance and replacement costs.

5. Conclusion

In the process of treating aluminum ash, using horizontal vacuum belt filters in conjunction with high-performance filter cloth is key to improving filtration efficiency and recovery quality. Xiamen Shadias's filter cloth products provide reliable support for the resource utilization of aluminum ash with their corrosion resistance, high strength, excellent filtration effects, etc., helping aluminum enterprises achieve both environmental protection and economic benefits.

 

 

 

 

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The application of chemical filter cloth in vertical filter presses for the extraction of 4A zeolite from non-woven fabrics.

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