-
ProductsBelt press filter mesh belt Horizontal belt vacuum filter mesh belt Vertical filter press filter cloth Filter cloth for frame filter press Breathable mesh Technical fabric - drying Technical fabric - high pressure belt Technical fabric - conveyor belt Technical fabric - fiberboard Joint form Edge banding form Accessories (threading)
-
Search HistoryClear All Records
- All
- Product Management
- News
Industrial filter cloth, filter mesh applications - horizontal vacuum belt filter, coal chemical coal powder ash dehydration
Share to
Detailed Description
- Industrial filter cloth, filter mesh applications - Horizontal vacuum belt filter, coal chemical coal powder ash dewatering
Filter type: Horizontal vacuum belt filter
Application industry: Coal chemical industry
Material description: Coal powder ash dewatering
Filter cloth model: 15T
Key application of industrial filter cloth and filter mesh in coal chemical industry coal powder ash dewatering —— Solution based on horizontal vacuum belt filter
With the continuous extension and technological upgrading of the coal chemical industry chain, the treatment of coal powder ash (especially by-products such as gasification slag and dry coke ash) has become an important factor restricting the green transformation of the industry. Efficient, safe, and sustainable dewatering and resource utilization of coal powder ash is a real challenge faced by coal chemical enterprises. As one of the core equipment for solid-liquid separation, Horizontal vacuum belt filter With its continuous operation and efficient dewatering characteristics, it has become an ideal solution for coal powder ash dewatering. In this system, The performance of industrial filter cloth and filter mesh directly determines the filtration efficiency, filter cake quality, and operational stability.
I. Technological background of coal powder ash dewatering in coal chemical industry
Coal chemical processes (such as coal gasification, coal-to-olefins, coal-to-oil, etc.) produce a large amount of fine-grained coal powder ash by-products. These ashes contain both unburned carbon particles and are rich in inorganic substances such as aluminum oxide, silicon dioxide, and calcium oxide. They have a wide particle size distribution and strong water adhesion. Traditional sedimentation or pressure filtration methods often face the following difficulties:
- High water content in filter cake, high cost of subsequent storage or resource utilization;
- Filter cloth is easily blocked, short filtration cycle, frequent operational interruptions;
- Poor fluidity of slurry, challenging the continuous operation capacity of the equipment.
Therefore, it is necessary to use equipment that can operate continuously and stably under high ash load conditions and achieve good dewatering effect —— This is Horizontal vacuum belt filter the advantage of.
II. Horizontal vacuum belt filter: Core equipment for coal powder ash dewatering
Horizontal vacuum belt filter ( Horizontal Vacuum Belt Filter, HVBF ) adopts continuous filtration mode, achieving solid-liquid separation under vacuum suction, and can be equipped with multiple processes such as backwashing, filtration, and drying. Its outstanding advantages in the coal chemical industry include:
- Continuous operation, high throughput : Suitable for centralized processing of large-scale emissions such as coal powder ash;
- Vacuum dewatering, low water content in filter cake : Dewaters the ash to a state that can be stored or transported directly;
- Multiple filtration stages can be configured : Achieves multi-stage dewatering and washing, assisting in ash resource utilization.
However, to achieve these functions, the performance of the filter cloth and filter mesh is crucial.
III. Key role and performance requirements of industrial filter cloth and filter mesh
In coal powder ash dewatering applications, industrial filter cloth / Filter mesh needs to meet multiple performance standards such as strength, air permeability, stripping property, and corrosion resistance at the same time to support the stable operation of the entire system. Specifically, these include:
1. High-strength support and wear resistance
Coal powder ash contains a large amount of fine particles and hard minerals, which easily cause wear and tear on the surface of the filter cloth. The filter cloth needs to have good mechanical strength and tear resistance to ensure that it does not break or deform during long-term operation.
2. Excellent air permeability and filtration accuracy
The filter cloth needs to maintain appropriate air and liquid permeability while ensuring particle retention to achieve rapid dewatering and low residual rate. High-precision weaving structure and multi-layer filtration design can effectively control the clarity of the filtrate and reduce fine ash penetration.
3. Good stripping property and self-cleaning ability
The filter cake after coal powder ash dewatering has strong adhesion. If the filter cloth surface does not have good stripping properties, it will lead to filter cake retention, cleaning difficulties, and frequent equipment shutdown. Special surface treatments (such as coating, heat setting), and structural optimization design can improve the cake removal efficiency.
4. Corrosion resistance and high-temperature resistance
Coal powder ash often contains corrosive gases and alkaline residues, and the filter cloth material needs to have good chemical stability. At the same time, the processing temperature of some coal powder ash is relatively high, and the filter cloth should withstand certain thermal stress changes.
IV. Application case: Xiamen Citius (Xiamen Citius) Performance of industrial filter cloth in coal powder ash dewatering
As a leading manufacturer of industrial filtration materials in China, Xiamen Citius (Xiamen Citius) Filtration Materials Technology Co., Ltd. Relying on 30 years of technical accumulation, it has launched a series of industrial filter cloth products specially designed for the coal chemical industry, which are widely used in many coal gasification, coal-to-olefins, and coking enterprises.
Technical characteristics:
- Multi-dimensional structural design : Using multi-layer composite weaving technology, effectively balancing filtration accuracy and air permeability;
- Enhanced edge processing : Edge bonding and gluing technology enhances the tensile performance of the filter cloth edge, preventing deviation and edge breakage;
- Personalized customization processing Customized solutions are provided based on the characteristics of coal fly ash, offering different thicknesses, porosity, and air permeability coefficients;
- High corrosion-resistant materials are optional Suitable for harsh environments such as those containing sulfur coal and ammonia water residue.
Practical Results:
In a project at a large coal gasification company, using Xiadias (Xiamen Citius) Horizontal vacuum belt filter with customized filter cloth, achieved Average filter cake moisture content below 22%、 Filter cloth replacement cycle extended to 6 months or more significantly improving equipment operating efficiency and economy.
V. Technological Trends and Development Directions
Facing “ Double Carbon ” In the context of the green upgrading needs of the coal chemical industry, industrial filter cloths and filtration systems are developing towards higher efficiency, intelligence, and green directions:
- Nanometer-scale structural optimization By refining the woven monofilaments and introducing microporous structures, the filtration accuracy is further improved;
- Application of low-energy materials Developing low-resistance, high-throughput materials to reduce system energy consumption;
- Anti-pollution coating technology Introducing anti-pollution and anti-scaling surface coatings to improve long-term stability;
- Full life cycle monitoring In the future, it may be combined with an online filter cloth monitoring system to achieve intelligent replacement and early warning (currently still under research).
VI. Conclusion
The efficient dehydration treatment of coal fly ash is not only related to the environmental compliance and production efficiency of coal chemical enterprises, but also directly affects the resource utilization rate and operating costs. As a core component of the filtration system, The performance selection of industrial filter cloths and filter meshes is no longer just an accessory issue, but a key variable in system efficiency 。
Xiamen Citius (Xiamen Citius) We will continue to focus on technological breakthroughs in the field of industrial filtration materials, promoting more efficient, green, and intelligent coal chemical waste treatment, and providing reliable support for the sustainable development of the industry.
Add
No. 16-22 Chunfeng East Road, Xiang'an Torch High tech Zone, Xiamen City, Fujian Province, China
Tel/ WhatsApp
Copyright © 2024 Xiamen Citius Filter Material Technology Co., Ltd.