

Filter cloth for filter presses, monofilament filter cloth, vertical disc filter press, quartz sand treatment of lime powder
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Detailed Description
- Filter cloth for filter press, monofilament filter cloth, vertical disc filter, quartz sand lime powder treatment
Filter press type: Vertical disc filter press
Application industry: Quartz sand
Material description: Lime powder
Filter cloth model: Monofilament filter cloth


Efficient application of special monofilament filter cloth in the process of treating quartz sand and lime powder with a vertical disc filter press
With the rapid development of industries such as industrial silicon, photovoltaic glass, and electronic-grade materials, the demand for the purification and deep processing of quartz sand is constantly increasing. In this process, in order to improve the acid-base stability and impurity control performance of quartz sand products, lime powder is often added for modification. However, the introduction of lime powder also brings about problems such as difficult filtration of fine particles in the slurry, severe cloth clogging, and difficult cake stripping. How to achieve efficient solid-liquid separation without affecting processing efficiency has become a major technological challenge for quartz sand companies.
The vertical disc filter press, combined with a high-performance monofilament structure filter cloth, provides an efficient, economical, and stable solution to this problem. Xiamen Citius (Xiamen Citius) Filter Materials Technology Co., Ltd., relying on years of industry accumulation, has successfully promoted the implementation of many technologies in such working conditions, helping customers achieve process optimization and cost control.
I. Quartz sand + Lime powder: Why is efficient filtration needed?
Lime powder is added to quartz sand during the purification process mainly to:
- Adjust the slurry pH to inhibit the dissolution of acidic impurities;
- Promote the precipitation reaction of certain metal ions;
- Surface coating or modification to enhance particle electrical stability;
- Neutralize acid washing residue and improve subsequent drying performance.
The treated slurry contains a large amount of unreacted lime powder, precipitated impurities, and fine quartz particles, making solid-liquid separation difficult. Especially in continuous production scenarios, if filtration and cake discharge cannot be completed in time, it will cause low equipment operating frequency, increased energy consumption, and unstable product quality.
At this time, the automated operation advantages of the vertical disc filter press, combined with a high-performance special filter cloth, can perfectly cope with this challenge.
II. Vertical disc filter press: An efficiency leader in the quartz industry
A vertical disc filter press is a high-efficiency continuous solid-liquid separation equipment. Its structure includes multiple rotating filter discs. Using the vacuum filtration principle, the solid particles in the slurry are deposited into a cake on the surface of the filter cloth, and then cleaned and discharged in the subsequent area. It is suitable for mineral filtration scenarios with high throughput and continuous operation requirements.
Advantages include:
- Small footprint, compact structure, suitable for centralized processing;
- High degree of automation, stable continuous operation;
- High filtrate clarity, beneficial for environmental compliance;
- Wide range of applicable concentrations, suitable for quartz sand - Lime slurry is particularly suitable.
The filter cloth, as a key component of its operating performance, plays a decisive role in the overall separation effect.
III. Monofilament filter cloth: Born for disc filtration operations
Under the special working conditions of quartz sand processing lime powder, which is high-alkaline, fine-particle, and easy to clog, ordinary filter cloths are prone to problems such as slow filtration speed, filter cake sticking to the cloth, and short service life. Monofilament filter cloth, with its unique structure and performance, shows superior adaptability.
1. Monofilament structure, precise filtration
Monofilament filter cloths are made of single fibers interwoven together, with uniform fabric pore size and smooth surface. Compared with traditional multifilament filter cloths:
- The filtration precision is more stable, and it can effectively intercept lime powder particles;
- Good permeability, fast filtration speed, suitable for the continuous vacuum filtration requirements of vertical disc filters;
- The filter cake is formed quickly and is easy to peel off, improving equipment operating efficiency.
2. Alkali and clogging resistance, stable operation
Lime powder has strong alkalinity, posing a challenge to the corrosion resistance of the filter cloth. Xiamen Citius (Xiamen Citius) Monofilament filter cloth is subjected to special surface treatment and chemical resistance design, and can operate for a long time under pH 10~12 environment without deformation, aging, or unraveling.
At the same time, its surface is not easy to adsorb slurry impurities, greatly reducing the frequency of cloth clogging, extending the cleaning cycle, and improving continuous operation capability.
3. Easy to clean, longer life
In long-term continuous production, the regeneration ability of the filter cloth is crucial. Xiamen Citius (Xiamen Citius) The special monofilament filter cloth has a dense and smooth surface, and its air permeability can be quickly restored after rinsing with clear water or reverse air washing. Compared with traditional fabrics, the service life can be increased by 30%-50% saving spare parts procurement costs and replacement frequency.
IV. Xiamen Citius (Xiamen Citius) Special filter cloth solution
To better serve the quartz sand processing industry, Xiamen Citius (Xiamen Citius) has launched a number of customized special monofilament filter cloth products, covering different filtration precision, strength, and air permeability requirements, combined with the operating characteristics of vertical disc filter presses.
In addition, Xiamen Citius (Xiamen Citius) provides supporting:
- Filter cloth cutting and shaping processing (adaptable to different disc diameters);
- Installation of customized auxiliary components (such as edges, stitching rings, and magic stickers);
- Cleaning and maintenance suggestions to help customers extend the service life.
V. Actual Application Effect Feedback
At a silicon material company in Jiangxi, the customer originally used ordinary polyester filter cloth to process quartz sand + Lime powder slurry, equipment operation 1 After months, the cloth clogging rate was high, the filter cake moisture content was high, and the filter cloth consumption was large.
Introducing Xiamen Xiadias (Xiamen Citius) After using the monofilament filter cloth, the effect has been significantly improved:
- Average filtration cycle shortened 15%;
- Filter cake stripping rate increased to 98% Above;
- Filtrate clarity improved, filter cloth replacement cycle extended from 15 days to 30 days or more;
- Annual filter cloth usage cost reduced by approximately 26%。
VI. Conclusion
Under the complex working conditions of quartz sand and lime powder processing, the efficient synergy between monofilament filter cloth and vertical disc filter is an important way to solve the problem of solid-liquid separation and improve production efficiency. Xiamen Xiadias (Xiamen Citius) Relying on extensive experience in filter material research and development and industry service practice, we continue to provide customers with more accurate, efficient, and stable filtration solutions.
If you have more needs for product selection, application suggestions, or customized services, please feel free to contact us —— We provide not only filter cloth, but also a complete set of solutions for improving filtration efficiency.
