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Filter cloth - Horizontal vacuum belt filter | Titanium dioxide filter solution for chemical plants
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Filter cloth - Horizontal Vacuum Belt Filter | Titanium dioxide filter solution for chemical plants
Titanium dioxide, as a high-performance inorganic white pigment, is widely used in coatings, plastics, papermaking, cosmetics, rubber and many other industries. Its production process is complex, especially in key links such as acidolysis, hydrolysis, washing and solid-liquid separation, the efficiency of the filtration process directly affects the product purity, energy consumption and environmental protection standards. In the filtration of titanium dioxide filter residue and slurry concentration process, Horizontal vacuum belt filter with high-performance filter cloth is becoming the preferred solution for many chemical plants to improve process efficiency and environmental indicators.
This article will focus on the core process needs of titanium dioxide filtration, systematically analyze the technical characteristics and application value of filter cloth for horizontal vacuum belt filter, and show its industry application effectiveness with typical cases.
I. Filtration challenges in titanium dioxide production
The main production routes of titanium dioxide are sulfuric acid method and chlorination method, among which sulfuric acid method is still the mainstream in China. Its production process involves a large number of acidolysis mine tailings, titanium liquid hydrolysis products, filter cake washing and dehydration and other solid-liquid separation operations. Common difficulties include:
- Fine material particles ( <10μm ), strong viscosity ，the filter cloth is easy to block;
- Strong acid corrosion ，requires the filter cloth to have high chemical stability;
- Large changes in the solid content of the slurry ，the filter cloth needs to have excellent permeability and stripping performance;
- Strong production continuity, high-intensity equipment operation ，puts higher demands on the life and strength of the filter cloth.
Therefore, the titanium dioxide industry has put forward composite and multi-index requirements for the performance of filter media: it requires high filtration accuracy, strong air and liquid permeability; it must be acid and alkali resistant, tensile resistant, and have good cake stripping and regenerability.
II. Horizontal vacuum belt filter: a high-efficiency tool for chemical filtration
Horizontal vacuum belt filter ( Horizontal Vacuum Belt Filter, HVBF ) is a kind of filtration equipment suitable for continuous and large-scale material filtration, which is widely used in the solid-liquid separation process of titanium dioxide, alumina, phosphate chemical industry, salt chemical industry and other industries. It relies on vacuum suction, through continuous cloth belt to filter the slurry into shape, washing, and then dehydration.
The advantages are mainly reflected in:
- Continuous operation, large processing capacity ；
- The filtration area can be divided into multiple sections for control, suitable for multi-step washing ；
- The filter cloth can be automatically operated and cleaned, improving service life ；
- High dehydration efficiency for materials with high solid content and fine particles 。
In the titanium dioxide industry, horizontal vacuum belt filter is often used for the filtration and washing of titanium liquid after hydrolysis, which is an important node for product purity control and waste liquid management.
III. Technical requirements for titanium dioxide filter cloth
Titanium dioxide filtration puts forward systematic technical standards for the performance of filter cloth:
1. Accurate filtration accuracy
- The filter cloth needs to effectively retain the titanium particles in the hydrolysis products, the particle size range is usually 0.5~10 Microns;
- At the same time, maintain sufficient liquid flow rate to avoid insufficient vacuum or excessive mud layer.
2. Excellent acid resistance and chemical stability
- In the face of sulfuric acid, ferrous, free TiO ₂ And other corrosive components, the filter cloth material needs to have good acid corrosion resistance;
- Polyester or polypropylene are mostly treated with surface modification to improve durability.
3. High strength and high stability structure
- The filter cloth needs to withstand long-term high tension and high tensile operation;
- The weaving structure should be flat and stable, avoiding deformation and loosening, and prolonging the service life.
4. Excellent mud cake stripping and cleanability
- Titanium dioxide particles are easy to embed in the fiber pores, the use of single-wire structure or composite single and double-wire weaving can effectively reduce blockage;
- The surface can be supplemented with anti-stick treatment to reduce the cleaning frequency and improve the reuse efficiency.
IV. Xiamen Xiadias Citius ：Industry leader in high-performance filter cloth
As a leading enterprise in the field of industrial filtration, Xiamen Xiadias Filtration Materials Technology Co., Ltd. Deep cultivation of chemical filtration 30 years, with global 400+ kinds of industrial filter media and a variety of self-developed weaving technologies, has formed a complete filter cloth supporting solution in the titanium dioxide industry.
Advantages of titanium dioxide filter cloth:
- ✅ Professional matching of titanium dioxide material particle size ，support 0.5~20μm Precise filtration;
- ✅ High-throughput design Improving vacuum filtration efficiency and optimizing production capacity;
- ✅ Surface treatment technology Enhancing cake release and cleaning efficiency;
- ✅ Acid and corrosion resistant material Extending service life and reducing replacement frequency;
- ✅ Supports multiple connector processes Adaptable to different brands of filter presses.
V. Typical Case: Filtration Efficiency Improvement at a Large Titanium Dioxide Plant 40%
Annual production of 15 A large-scale titanium dioxide plant with an annual output of tens of thousands of tons uses imported filter cloths in the hydrolysis filtration process. However, due to frequent clogging, high moisture content in the filter cake, and short filter cloth lifespan, the operating costs are high.
After the Xiamen Xiadias Technology team provided " High-throughput + Anti-clogging + Custom-blended ” Filter cloth solution transformation, the actual operating data shows:
- The filter cloth service life was extended from the original 45 days to 120 days or more;
- The filter cake moisture content was reduced from 32% to 25% significantly saving the cost of downstream drying;
- Vacuum pressure difference increased 12% Filtration efficiency increased 40%。
Project operation 6 The investment cost of the filter cloth transformation was recovered within months, and a long-term stable cooperation was established.
VI. Conclusion: High-efficiency filter cloth is the invisible weapon of chemical filtration
Behind the production goals of high purity, high whiteness, and high dispersibility of titanium dioxide, there is extreme control over every detail of the process. As a key node, the quality of the filter cloth directly determines the stability, economy, and environmental performance of the entire system.
In the high-corrosion, high-load, and long-cycle titanium dioxide production process, only by choosing a filter cloth brand with professional design, on-site verification, and complete technical support can the process efficiency and production line stability be ensured. Xiamen Xiadias Citius is this reliable partner.
- Filter Cloth - Horizontal Vacuum Belt Filter | Chemical Plant Titanium Dioxide Filtration Solution
Filter press type: Horizontal vacuum belt filter press
Application industry: Chemical industry
Material description: Titanium dioxide
Filter cloth model: 15P-40
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