Industrial filter cloth, filter mesh usage - leaf filter cloth - aluminum plant alumina refining
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  • Industrial filter cloth, filter mesh usage - leaf filter cloth - aluminum plant alumina refining

Industrial filter cloth, filter mesh usage - leaf filter cloth - aluminum plant alumina refining

Xiamen Citius can research and produce various special-performance monofilament materials according to different application conditions of customers. These materials include: ordinary and high hydrolysis-resistant PET, PA (PA6, PA66, PA610, PA11, PA12, etc.), PP (including high-temperature resistant PP), PPS, PEEK, core-sheath materials (PA/PET, PPS/PET). These materials broaden the application fields of Xiamen Citius products and solve the requirements of customers for filter materials in special working conditions.

E-Mail:

xieyj@citius-filter.com

WhatsApp:

86-13950107241

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Detailed Description

  • Industrial filter cloth and filter mesh usage - leaf filter cloth - alumina refining in aluminum plants
    Xiamen Citius (Xiamen Citius) On-site application case diagrams of industrial filter cloth:
    Filter type: Leaf filter
    Application industry: Aluminum plant
    Material description: Alumina
     

Application of industrial filter cloth and filter mesh in leaf filters —— Assisting aluminum plants in efficient alumina refining

In the alumina refining process, the efficiency and accuracy of solid-liquid separation determine the product purity, energy consumption level, and system stability. Leaf filters (vertical leaf filters and horizontal leaf filters), as highly efficient filtration equipment, are widely used in key processes such as red mud separation, mother liquor purification, and seed washing in aluminum plants. The industrial filter cloth and filter mesh used are core components that ensure efficient equipment operation and filtrate quality.

I. Application scenarios of leaf filters in alumina processes

In the Bayer process, leaf filters are often used in the following process nodes:

  • Secondary clarification after red mud separation : Further remove fine particles to ensure the clarity of the sodium aluminate solution;
  • Mother liquor filtration and reuse : Recover residual alkali to reduce the accumulation of impurities in the circulating system;
  • Seed washing or fine filtration of aluminum hydroxide products : Reduce entrained impurities and improve product purity.

The solutions in these processes generally have " high alkalinity, high temperature, fine particles, high viscosity ” characteristics, placing extremely high demands on the filter medium.

II. Performance requirements of leaf filter cloth

The filtering element of a leaf filter is composed of multiple metal filter leaves, which are externally wrapped with custom-made filter cloth or filter mesh. The performance of the filter cloth directly affects its filtration efficiency, filter cake release, and equipment stability. High-quality filter cloth should have the following characteristics:

  1. Stable filtration accuracy : Effectively intercept fine particles to ensure clarity;
  2. High air permeability and flow rate control capability : Improve filtration speed and reduce filter cake moisture content;
  3. Alkali and temperature resistance : Adapt to high pH and hot operating environments;
  4. Excellent filter cake release : The filter cake is easy to peel off, suitable for backwashing, vibration, or scraper discharge;
  5. High mechanical strength : Withstand filtrate pressure and long-term repeated operation;
  6. Custom fit to the filter leaf structure : Ensure no mud leakage, no bulging, and no edge jamming.

III. Xiamen Citius (Xiamen Citius) Leaf filter cloth solutions

Xiamen Citius (Xiamen Citius) Environmental Filtration Technology Co., Ltd., focuses on the R&D of solid-liquid separation filter cloth materials 30 years, and has the ability to customize high-efficiency leaf filter cloth for the alumina industry, widely used in domestic and foreign aluminum plants.

Material advantages

Xiamen Citius (Xiamen Citius) The company can research and produce various special-performance monofilament materials according to different application conditions of customers. These materials include: ordinary and highly hydrolysis-resistant PET 、 PA （ PA6、PA66、PA610、PA11、PA12 etc.), PP （including high-temperature resistant PP ）、 PPS 、 PEEK 、core-sheath materials（ PA/PET、PPS/PET ）。These materials have broadened the application fields of Xiamen Citius (Xiamen Citius) Company products and solved the requirements of customers for filter materials in special working conditions.

Process and structure

  • Custom cutting and laser positioning punching to ensure close contact with the filter leaves;
  • Edging, heat sealing, and seam reinforcement to prevent mud leakage, damage, and edge loosening;
  • Support integrated filter bag structure or double-cloth bag structure to improve replacement efficiency and installation stability.

Performance improvement

  • Improved filtrate clarity 10% and above ，purer mother liquor quality;
  • Filter cloth service life extended to 6~12 months ，reducing maintenance costs;
  • Filter cakes are easier to detach, reducing adhesion and discharge obstacles ；
  • More stable operation, lower clogging rate, reduced system fluctuations and downtime 。

IV. Typical Application Cases

In a leaf filter renovation project at a large alumina plant, Xiadias was used (Xiamen Citius) After replacing the original filter cloth with a customized filter cloth:

  • Reduced alkali consumption in the mother liquor 6% and more stable circulation;
  • The frequency of filter cloth replacement has been extended from once per quarter to once every six months;
  • Improved filtration flux 12% and significantly improved system efficiency;
  • Improved whiteness and purity of the product in the seed washing stage, resulting in high customer satisfaction.

V. Technical Service and Support

Xiamen Citius (Xiamen Citius) After nearly 30 years of continuous research and development, the company can provide customers with solutions for filter materials in solid-liquid separation processes, with a leading research level in China. Xiadias (Xiamen Citius) The company has a technical team with many years of experience in filter material research, and has the most complete filter material research, testing, and pilot production line in China. We can provide customers with customized and personalized services.

Xiamen Citius (Xiamen Citius) With a complete R&D pilot base, we can provide customers with:

  • On-site sample cloth testing and operation analysis ；
  • Rapid customization and mass production capabilities ；
  • One-on-one engineer technical support ；
  • Filter cloth replacement guidance and system optimization suggestions 。

 

For samples, solutions, or case support, please contact Xiadias (Xiamen Citius) Technical Engineering Team:

  • 📧   Email: wyl@citius-filter.com
  • 📞  WhatsApp: +86-13950107241
  • 🌐   Website: www.citius-filter.com

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