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Filter cloth for filter press, horizontal vacuum belt filter, gold smelting
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Detailed Description
- Filter cloth for filter press, horizontal vacuum belt filter, gold smelting
Filter type: Horizontal vacuum belt filter
Application industry: Gold smelting
Key applications of industrial filter cloth and filter press filter cloth in gold smelting
Gold, since ancient times, has been a symbol of wealth and power. From ore to gold bars, gold smelting is a highly complex and demanding process. In this process, solid-liquid separation, as a key link, directly affects the gold recovery rate, product quality, and environmental protection standards. In the solid-liquid separation system, industrial filter cloth, especially filter press filter cloth, plays an irreplaceable role.
I. Solid-liquid separation in gold smelting
Gold smelting usually includes multiple steps such as crushing, grinding, leaching, solid-liquid separation, reduction precipitation, and electrolytic refining. Among them, in cyanide leaching, carbon-in-pulp ( CIP/CIL ) or heap leaching, the leaching solution contains a large amount of suspended solids, which need to be processed by efficient solid-liquid separation equipment to obtain a clean gold complex solution. At this time, equipment such as filter presses begins to play a role.
II. The role of filter press filter cloth in gold smelting
Filter press filter cloth is mainly used in the following key steps:
1. Leaching residue filtration
After cyanide leaching, the slurry contains a large amount of leaching residue (such as quartz, pyrite, clay impurities, etc.), which needs to be filtered out quickly and efficiently to avoid interfering with subsequent processes. At this time, the filter cloth needs to have the following characteristics:
- High retention rate : Able to effectively intercept fine solid particles;
- Good air permeability and liquid permeability : Maintain filtration efficiency and speed;
- Strong chemical corrosion resistance : Suitable for long-term working environment of cyanide solution or alkaline solution;
- Good filter cake release : Reduce the frequency of manual cake cleaning and improve automation efficiency.
2. Activated carbon separation
In the carbon-in-pulp method, activated carbon is used to adsorb gold ions, and carbon particles need to be separated from the slurry periodically for desorption and regeneration. The filter cloth needs to be wear-resistant and not easily blocked, suitable for dynamic or intermittent filtration.
3. Sedimentation residue, tailings water treatment
Heavy metal ions, residual cyanide, and precipitates in the smelting tailings need to be treated to meet the standards before discharge or reuse. The filter press filter cloth can efficiently dewater the sedimentation residue, improve the efficiency of tailings dry stacking, control the water content, and reduce the environmental impact.
III. Technical requirements for filter cloth used in gold smelting
The requirements for filter cloth in gold smelting are extremely strict, not only focusing on the filtration performance itself, but also requiring the filter cloth to operate stably for a long time in a complex environment. Typical technical indicators include:
Index
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Requirements
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|---|---|
Filtration accuracy
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Can reach 5~20 Micron
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Alkali resistance
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Can withstand pH 10~12 Long-term operation in the environment
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Abrasion resistance
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Adapt to high-frequency mechanical cleaning and wear environment
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Filter cake release
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The filter cake falls off completely, reducing manual intervention
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Service life
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Can reach hundreds of cycles depending on the slurry properties
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Xiamen Citius (Xiamen Citius) Filter Materials Technology Co., Ltd., and other industry-leading companies have developed a variety of high-performance filter cloth products suitable for plate and frame filter presses, chamber filter presses, and automatic filter press systems for the gold smelting industry. These products are widely used in important gold-producing areas such as China, Africa, South America, and Russia.
IV. Filter cloth selection in different metallurgical scenarios
The gold smelting scenario is complex, and the ore properties, water quality, and reagent ratios of different mining areas are different, so the filter cloth selection needs to be combined with the actual situation:
- High clay content ore : It is recommended to use high-permeability filter cloth, which can effectively improve the filtration speed and reduce the frequency of cloth clogging;
- High abrasive ore : You can choose reinforced filter cloth with good wear resistance;
- Strong alkaline corrosion : It is recommended to use alkali-resistant filter cloth to ensure long-term stable operation;
- Ultra-fine particle separation : Coated filter cloth or ultra-fine fabrics can be configured to improve the retention rate and cleaning efficiency.
V. Optimization direction of filter cloth under environmental protection trend
With the increasing environmental protection standards in the gold smelting industry, higher requirements are put forward for the filtration system:
- Reduce water content : Filter cloth design will pay more attention to filter cake dehydration performance, which is conducive to dry stacking and transportation;
- Extend service life : Reduce the frequency of filter cloth replacement through process optimization and material upgrades;
- Improve filtration efficiency : Nano-micron structure design will be gradually promoted to improve gold recovery rate;
- Take into account regeneration performance Promote filter cloth cleaning and reuse technology to reduce overall operating costs.
VI. Summary
Gold smelting is not only a technology-intensive industry, but also a game between resource efficiency and environmental protection. As the core of the solid-liquid separation system, the filter cloth of the filter press, though inconspicuous, plays a decisive role in every slurry filtration and every batch of gold mud dehydration. Choosing high-quality, highly adaptable industrial filter cloths can not only improve gold recovery efficiency but also reduce operational risks, helping gold enterprises to go further and steadier in the face of environmental policies and market competition.
In the industrial world behind gold, industrial filter cloths are silently guarding the purity of the metal and the cleanliness of the environment.
📞 For technical support or sample testing services, please contact Xiamen Citius (Xiamen Citius) ：
- Email: wyl@citius-filter.com
- WhatsApp: +86-13950107241
- Official Website : www.citius-filter.com
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