CATHAY Disc Vacuum Filter Multi-disc linkage Continuous filtration High efficiency solid-liquid separation

CATHAY disc vacuum filter: multi-disc synergy, pioneer of efficient solid-liquid separation

1. Innovative structure, creating excellent filtration efficiency

CATHAY disc vacuum filter adopts a unique multi-disc combination design, which tightly installs multiple filter discs on a horizontal hollow main shaft. Each disc is evenly distributed along the axial direction, which greatly increases the filtration area. Each disc is finely divided into several independent fan-shaped filter blades, which constitute independent filter chambers and are cleverly connected to the vacuum system and compressed air system through the distribution head, laying a solid foundation for efficient solid-liquid separation. During filtration, the motor drives the disc to rotate at a stable speed (0.5-5r/min) in the tank filled with slurry through a high-precision reducer and a stable open gear transmission, ensuring that each filter chamber completes the filtration process in an orderly manner, realizing continuous and uninterrupted efficient filtration operations, and a single device can process 10-100 tons of slurry per hour, far exceeding similar equipment.

2. Vacuum drive to achieve continuous and precise filtration

During the working process, vacuum suction becomes the core driving force. When the disc is partially immersed in the slurry tank, the filter chamber rotates with the disc and enters the slurry adsorption area. Under the strong negative pressure (-0.04 to -0.08MPa) created by the vacuum pump, the liquid components in the slurry quickly pass through the filter cloth, the filter chamber, and are discharged smoothly through the filtrate pipe and the distribution head; while the solid particles are accurately intercepted by the filter cloth and gradually accumulate on the surface of the filter cloth to form a filter cake. As the disc continues to rotate, the filter cake is separated from the slurry area and enters the dehydration area. The vacuum suction further plays a role, deeply absorbs the residual moisture in the filter cake and improves the dryness of the filter cake; in the unloading area, compressed air is instantly injected, and the strong back-blowing wind accurately blows the filter cake down, causing it to fall into the discharge trough and be quickly transported away by the ore collection conveyor. Then, the filter cloth enters the cleaning area, and the high-pressure spray and brush work together to clean the filter cloth in all directions and without dead ends, ensuring the regeneration of the filter cloth performance and preparing for the next round of filtration. The whole process is completed in one go and repeated, and the filtration efficiency is 50% - 80% higher than that of intermittent filtration equipment.

3. Excellent performance, adaptable to the needs of multiple industries

Mining field: In the field of metal ore beneficiation, whether it is the dehydration of concentrates such as gold, copper, and iron ore, or the treatment of tailings, CATHAY disc vacuum filters perform excellently. Taking iron concentrate as an example, after being treated by the equipment, the moisture content of the filter cake can be stably reduced to 8% - 12%, meeting the requirements of subsequent smelting, dry stacking and other processes, and reducing the drying energy consumption by 30% - 40%; in the processing of non-metallic minerals, the filtration of slurries such as kaolin, quartz sand, and mica can effectively remove impurities, improve product purity and quality, and help non-metallic mineral products move towards the high-end market.

Chemical industry: Suitable for solid-liquid separation of various chemical slurries such as dyes, pigments, fertilizers, and pharmaceuticals. In dye production, dye particles can be accurately filtered out, the filtrate is clear, the dye purity is effectively improved, and the color and quality stability of the product are guaranteed; in the fertilizer production process, it can efficiently separate the mother liquor and crystals, improve the fertilizer production efficiency and product yield, and reduce production costs.

Environmental protection industry: In industrial wastewater treatment, pollutants such as suspended solids and heavy metal ions in wastewater can be intercepted to achieve standard discharge or reuse of reclaimed water; in the sludge dehydration process of urban sewage treatment plants, sludge with a moisture content of up to 95%-98% can be dehydrated to a moisture content of 60%-70%, greatly reducing the volume, facilitating subsequent sludge transportation, landfill or incineration, and effectively reducing environmental pressure.

Food and beverage industry: The use of stainless steel materials and high-quality filter cloths that meet food-grade hygiene standards can effectively remove impurities and fully retain nutrients and flavor substances in juice clarification, starch dehydration, dairy product filtration and other links, meet strict food safety regulations, and provide consumers with high-quality and safe food and beverage products.

4. Intelligent control, simplified operation and management

CATHAY disc vacuum filter is equipped with an advanced PLC intelligent control system. Through a series of high-precision sensors, it can monitor the operating status of the equipment in real time and accurately, including key parameters such as vacuum degree, filter cake thickness, disc speed, slurry concentration and flow. Operators can easily set core parameters such as filtration pressure, feed rate, backflush time, and cleaning cycle on the visual touch screen in the central control room. The system automatically and accurately controls the operation of each component of the equipment according to the preset program, realizing one-button start and fully automated continuous production. At the same time, the system has powerful automatic fault diagnosis and alarm functions. Once the equipment is abnormal (such as filter cloth blockage, vacuum abnormality, motor overload, etc.), it will immediately issue an audible and visual alarm, and clearly display the fault location and detailed processing suggestions on the screen, greatly reducing the cost of manual inspections and equipment downtime. Operators can become proficient in their jobs after simple training, significantly improving the convenience and efficiency of production management.

5. Sturdy and durable to ensure long-term stable operation

Corrosion-resistant design: The main structure of the equipment, such as the tank, disc, filtrate tube and other key components, are made of 304 or 316L high-quality stainless steel. The surface is specially passivated to form a dense protective film. It has excellent acid and alkali resistance and corrosion resistance. It can easily cope with various corrosive slurries with a pH value of 2-12. Under harsh working conditions, the service life of the equipment is up to 10-15 years.

Stable transmission system: It adopts imported high-precision gear or chain transmission devices, combined with efficient and energy-saving variable frequency speed regulation motors. According to the slurry characteristics and production needs, the disc speed can be flexibly and smoothly adjusted. There is no jamming or abnormal vibration during operation. The overall operation stability of the equipment is extremely high, and the failure rate is less than 2%/year, reducing the frequency of equipment maintenance and repair costs.

Excellent sealing performance: The contact surface between the distribution head and the disc is made of special wear-resistant alloy material, which is precisely processed and ground to ensure reliable sealing performance, a vacuum leakage rate of less than 0.5%, and a stable maintenance of the internal vacuum of the equipment to ensure consistent filtering effect, providing a solid guarantee for efficient production.

6. Customized service to meet personalized needs

CATHAY is well aware that the production scale, slurry properties, and process requirements of different companies vary greatly, so it provides a full range of customized services. Starting from the equipment selection consultation in the early stage of the project, the professional technical team has a deep understanding of the actual needs of customers, combined with key factors such as material concentration, particle size, and processing volume, to accurately recommend the most suitable disc vacuum filter model and configuration plan for customers. At the same time, according to the personalized requirements of the customer's site space layout, automation level expectations, etc., the equipment can be designed and manufactured in a targeted manner, such as the number of customized discs, filtration area, filter cloth material (polypropylene, nylon, stainless steel mesh, etc.), vacuum system configuration and auxiliary cleaning device, etc., to ensure that the equipment is seamlessly connected with the company's existing production process and maximize its efficiency. From equipment planning, installation and commissioning to later maintenance, CATHAY provides one-stop caring services to escort customers throughout the process.

7. CATHAY brand guarantee, worry-free after-sales

As a well-known brand in the field of solid-liquid separation equipment, CATHAY has accumulated profound technical background and rich practical experience in the research and development and manufacturing of disc vacuum filters. Before leaving the factory, each equipment must undergo a strict and comprehensive quality inspection process, covering performance testing, pressure testing, sealing testing, material running testing and other processes to ensure that the product quality is excellent and the performance is excellent. The professional after-sales team is on call 24 hours a day, 365 days a year, to provide customers with timely and professional technical consultation, equipment maintenance, parts replacement and other services at any time. The after-sales staff responds quickly. After receiving the fault report, they can rush to the site as soon as possible to solve the problem as quickly as possible, ensure the normal operation of the equipment, and let customers use the equipment without worries. Choosing CATHAY disc vacuum filter means choosing an efficient, stable, intelligent and durable solid-liquid separation solution. Join hands with CATHAY to embark on a new journey of efficient production and green development.

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