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Industrial filter cloth, horizontal vacuum belt filter, phosphoric acid filtration semi-hydrate gypsum
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Detailed Description
Application of Industrial Filter Cloth in the Filtration of Gypsum Hemihydrate in the Phosphate Chemical Industry
—— Technical Discussion Based on Horizontal Vacuum Belt Filter
In the phosphate chemical industry chain, with the continuous expansion of phosphoric acid production scale, a large number of by-products ** gypsum hemihydrate ( CaSO ₄ · 0.5H ₂ O ) ** The treatment and resource utilization of the problem are increasingly valued. As a material with fine particle size and difficult dehydration, the efficient dehydration of gypsum hemihydrate is not only related to the optimization of the production process, but also an important part of the construction of a green manufacturing system.
In practical applications, ** horizontal vacuum belt filter ( Horizontal Vacuum Belt Filter, HVBF ) ** With its continuous operation and high dehydration efficiency, it is widely used in the solid-liquid separation of gypsum hemihydrate. In this system, industrial filter cloth As the core filtration medium, its performance directly affects the dehydration effect, equipment operation stability and the quality of gypsum hemihydrate products.
Characteristics of Gypsum Hemihydrate and Dehydration Challenges
Compared with conventional desulfurization gypsum, gypsum hemihydrate has finer particle size and a certain amount of colloidal impurities on the surface of the particles, and the overall dewaterability is poor, easily forming filter cakes with high water content. At the same time, due to the residual acidic environment in the phosphate chemical system, higher requirements are also put forward for the corrosion resistance of the filter cloth.
Traditional gravity sedimentation or pressure filtration methods are often difficult to meet the needs of modern industry when facing large-scale gypsum hemihydrate dehydration. Therefore, horizontal vacuum belt filters equipped with high-performance filter cloths have become the mainstream choice.
Synergistic Effect of Horizontal Vacuum Belt Filter and Filter Cloth
Horizontal vacuum belt filter through continuous feeding, vacuum filtration, filter cake washing, filter cake peeling and other steps, to form a complete continuous dehydration process.
The filter cloth undertakes several core functions in this process:
- Dual role of filtration and support : It is necessary to efficiently retain gypsum hemihydrate particles and maintain good liquid permeability to ensure that the vacuum is maximized;
- Anti-clogging performance : The surface structure of the filter cloth needs to be optimized to reduce the residual deposition of fine gypsum hemihydrate particles between the fibers;
- Filter cake peelability : The dehydrated gypsum hemihydrate can be smoothly peeled off from the surface of the filter cloth to avoid increasing the filter cloth load and improve the continuous operation time of the equipment;
- Corrosion resistance and wear resistance : Adapt to acidic and abrasive environments, extend the filter cloth replacement cycle, and reduce overall maintenance costs.
In order to meet these requirements, the filter cloth used for gypsum hemihydrate filtration in the phosphate chemical industry often adopts a precision weaving process, the surface is specially treated to improve the filter cake release, and it has a high-strength skeleton structure to support continuous operation.
Actual Application Results
In the practice of large-scale phosphate chemical projects, the horizontal vacuum belt filter equipped with special industrial filter cloth shows excellent dehydration effect:
- The water content of the filter cake is reduced to 12%-16% range which facilitates the subsequent storage, transportation or further resource utilization of gypsum hemihydrate;
- Stable system operation, high vacuum efficiency The equipment load distribution is uniform, reducing unplanned downtime caused by filter cloth blockage;
- Filter cloth service life is extended 30%-50% The overall operating cost has been significantly reduced;
- Improved filter cake quality Effectively controlled the impurity content, providing a better foundation for gypsum product development and other uses.
Summary
Efficient dehydration of gypsum hemihydrate in the phosphate chemical industry depends on the synergistic cooperation of equipment and materials. Industrial filter cloth is not only a simple filtration medium, but also an important support for the performance of the entire horizontal vacuum belt filtration system.
With the increasing requirements of the phosphate chemical industry for environmental protection, energy efficiency, and resource utilization, innovation in filter cloth materials and processes targeting the characteristics of gypsum hemihydrate will also become an important direction for future system optimization.
- Industrial Filter Cloth, Horizontal Vacuum Belt Filter, Phosphate Chemical Filtration Gypsum Hemihydrate
Filter type: Horizontal Vacuum Belt Filter
Application Industry: Phosphate Chemical
Material Description: Gypsum Hemihydrate
Filter Cloth Model: FC1224B
For samples, technical information or cooperation consultation, please contact:
- Company Name: Xiamen Citius (Xiamen Citius) Filter Materials Technology Co., Ltd.
- Official Website: www.citius-filter.com
- Email: wyl@citius-filter.com
- WhatsApp ： +86-13950107241
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