Industrial filter cloth and filter mesh: "Clean helpers" for sand and stone processing in sand washing plants

Release time:

2025-05-16

In the modern sand and gravel industry, especially in the production of manufactured sand and river dredging and sand washing plants, environmental regulations are becoming increasingly stringent, and "mud-water separation" efficiency has become a key indicator of sustainable development for enterprises. Faced with high water content, high fine particle content, and high throughput sand washing sludge, belt press filter machines are gradually becoming the mainstream solid-liquid separation equipment. In this system, the seemingly ordinary but highly technical industrial filter cloth and filter mesh play a decisive role.

Industrial filter cloth and filter mesh: for sand and stone processing in sand washing plants “ Cleanliness enabler ”

—— Core separation materials in belt press filter machines 

In the modern sand and gravel industry, especially in mechanized sand and river dredging sand washing plants environmental regulations are becoming increasingly stringent, “ mud and water separation ” efficiency has become a key indicator of sustainable development for enterprises. Faced with high water content, high fine particle content, and high throughput sand washing sludge, belt press filter machines are gradually becoming the mainstream solid-liquid separation equipment. The key component in this system, seemingly ordinary yet with extremely high technical content, is the industrial filter cloth and filter mesh 。

Challenges of sand washing sludge: high water content, fine mud, and fast processing 

Sand washing operations seem simple, but they actually involve many environmental and operational challenges: 

  • Fine mud ：A large amount of fine sand less than 100 microns is difficult to settle naturally; 
  • High fluidity ：Water content as high as 85% or more, low efficiency of traditional sedimentation; 
  • High output and fast pace ：Daily output of several thousand tons of wet sand, extremely high requirements for the sludge treatment system; 
  • High requirement for wastewater reuse rate ：Sand washing wastewater needs efficient reuse to reduce water intake and discharge costs. 

Therefore, more and more enterprises are introducing belt press filter machines to separate mud and water, and its performance largely depends on the filter cloth and belt materials used. 

Belt press filter machine: efficient equipment for mud and water treatment 

Belt press filter machines use gravity dehydration +  mechanical pressing combined processes to achieve a continuous and efficient sludge solid-liquid separation process. Its structure includes: 

  • Filter cloth layer ：Direct contact with sludge, responsible for intercepting solid particles and withstanding pressure; 
  • Filter mesh layer (belt) ：Supports the filter cloth, transmits tension and pressing force, ensuring stable equipment operation; 
  • Cleaning and separation system ：Ensures surface cleanliness and automatic filter cake discharge. 

In the entire filtration process, the performance of the filter cloth and filter mesh will directly affect filter cake dehydration rate, processing speed, and system stability 。

Xiamen Citius (Xiamen Citius) Solution: Professional filter cloth + Durable mesh belts, creating a high-efficiency filtration system 

As a pioneer in the research and development and manufacturing of filtration materials in China, Xiamen Citius (Xiamen Citius) Filtration Materials Technology Co., Ltd. has launched a series of industrial filter cloths and filter mesh products suitable for belt press filter machines, targeting the typical sludge characteristics of the sand washing industry: 

1.  Industrial filter cloth: precise filtration, strong de-sludging 

  • Multi-layer composite weaving structure ：Adaptable to fine-grained mud and sand, rapid interception, preventing penetration; 
  • Smooth surface treatment technology ：Improves filter cake release, preventing adhesion and blockage; 
  • Acid and alkali resistant, hydrolysis resistant formula ：Adaptable to water quality fluctuations, stable and long service life; 
  • Optional wide-width customization ：Adaptable to various domestic and imported filter press equipment, meeting the needs of high-yield production lines. 

2.  Filter mesh (belt): stable support, high strength and wear resistance 

  • Polyester / Polypropylene material mesh belt ：Has good mechanical strength and wear resistance; 
  • Reinforced edge design ：Prevents long-term tension deformation and edge breakage; 
  • Mesh remains stable and undeformed ：Ensures smooth operation during the pressing process, extending the service life of the filter cloth; 
  • Easy online cleaning and maintenance ：Supports high-frequency backwashing, suitable for all-weather operating environments. 

Application cases: Empowering sand field environmental protection 

In many mechanized sand washing plants in South China, East China, and Central China, Xiamen Citius (Xiamen Citius) filter cloth and belt products have been widely used in various brands of belt press filtration equipment, covering large and medium-sized production lines with a daily output of 3000~8000 tons of sand and gravel. On-site data shows: 

  • The water content of the dehydrated mud cake is reduced to 30%-40% ，easy to transport and store; 
  • Filter cloth service life exceeds 180 days significantly reducing replacement and downtime; 
  • Improved filtration speed 20%+ meeting the continuous operation requirements of high-speed sand washing lines; 
  • Reduced frequency of screen washing 30% water saving, energy saving, and more environmentally friendly. 

Green Value: Every filtration protects a clean water source 

Sand and gravel are the “ framework ” of urban construction, while environmental protection is the “ foundation stone ” of sustainable industrial development. Xiadyas (Xiamen Citius) firmly believes: High-quality filter materials not only improve equipment performance, but also are the key force in promoting environmental protection and resource recycling. Through the accumulation of technology and experience, we will continue to provide the sand and gravel industry with more efficient and reliable filtration solutions, helping green sand washing to take root. 

  • Industrial filter cloth, filter mesh usage - belt press filter - sand washing plant, sand and gravel processing 
    Filter type: Belt press filter 
    Application industry: Sand washing plant 
    Material description: Sand and gravel

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