Vacuum Drum Filter
Vacuum Drum Filter is an automated solid-liquid separation machine, specifically designed to separate solid particles from liquids.
Its core component is a rotating “drum” (similar to the inner drum of a front-loading washing machine), covered with a special filter cloth. During operation, part of this drum is immersed in the liquid mixture to be processed (such as impurity-containing water, industrial slurries, etc.). Using “vacuum suction” (working on the same principle as a vacuum cleaner), the liquid is drawn through the filter cloth, while solid particles remain on the cloth. As the drum rotates slowly, these solid impurities are automatically scraped off. The entire process runs continuously without the need for constant manual supervision.
PRICE: $7661 – $90545/SET
Discharge method
The main discharge methods of Yinuo rotary vacuum drum filters include scraper discharge, belt folding discharge, and precoat discharge, which are respectively suitable for different filter cake properties (such as strength, viscosity, and thickness) to achieve efficient material removal.
scraper discharge
Scraper discharge involves equipping the rotary drum filter with a “smart scraper,” which specifically waits for the drum to spin around and then gently scrapes off the formed “cakes”—it’s both simple and efficient.
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belt folding discharge
Belt discharge lies in its use of curvature change: as the filter cake travels along the belt, it has long adapted to the original bending radius. Once the curvature shifts, it’s like disrupting its familiar “posture”—and the filter cake will naturally fall away.
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precoat discharge
Precoat discharge protects the screen via a pre-formed coating that blocks impurities and prevents clogging, ensuring fast, efficient, and consistent filtration without declining performance—specifically for sticky materials.
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Yinuo vacuum drum filter adopts renowned-brand parts. It has a Siemens control cabinet for reliable operation, curved pipes for smooth material flow, well-crafted welded joints for tightness, and high-quality valves for precise control.
Control box
The Yinuo vacuum drum filter controller features Siemens technology, with standout advantages: multiple operating modes to adapt to diverse working conditions, real-time precision monitoring of key parameters for consistent equipment performance, and a multi-device app supporting seamless operation across smartphones, computers and tablets. This eliminates location barriers, significantly boosting operational convenience and management efficiency.
welding groove
The welding of Yinuo’s RVDF boasts remarkable advantages. The weld line is smooth and even, with exquisite craftsmanship. It adopts advanced welding techniques, ensuring strong structural integrity, good airtightness, and high precision. The welds are free from defects like pores and cracks, which greatly enhances the durability and reliability of the filter. This meticulous welding not only guarantees stable operation during use but also extends the service life.
famous brand parts
Yinuo adopts well – known brand parts to ensure product quality, as these parts have undergone strict market verification and have reliable performance. Moreover, it can also purchase vacuum pumps, negative pressure pumps and other driving devices according to customers’ needs. Whether customers have specific brand preferences or special performance requirements for driving devices, Yinuo can flexibly respond and provide tailored and comprehensive solutions.
Curved pipe
As shown in the picture, the welded pipes of Yinuo’s VDF are curved instead of vertical. This curved design allows the liquid to flow more smoothly during operation, enhancing the efficiency and stability of the filtration process.The welded pipes are meticulously crafted. The welding joints are smooth and uniform, ensuring strong structural integrity and excellent sealing performance. These pipes enable efficient material flow and stable operation.
cable tray
The cable tray of Yinuo’s RDVF can hide cables, making the filter look more orderly. It also boosts safety: exposed cables risk causing accidents like trips and electrical faults, while the cable tray protects cables, reducing such hazards and ensuring device and personnel safety. Moreover, it facilitates cable management and maintenance. Workers can easily identify cables during maintenance, improving efficiency and reducing time costs. It also helps extend cable life.
hight quality valve
The valves of Yinuo’s VDFD play a crucial role in the filtration system. Crafted with high-precision machining and premium materials, these valves boast excellent corrosion resistance and pressure-bearing capacity, enabling them to adapt to various harsh working conditions during filtration processes. Additionally, some of these valves are equipped with an intelligent automatic-closing function, which prevents media backflow, avoids potential leakage.
how does a rotary drum filter work
Vacuum drum filter is a device that achieves continuous filtration through vacuum suction and mechanical rotation. As the drum rotates slowly, the part submerged in water acts like a drinking straw—because the inside is “vacuum” (just like when you suck all the air out of a straw, the water rises on its own). This causes the water to readily pass through the small mesh holes on the drum’s surface, while solids are blocked outside the holes, sticking to the drum like little stickers. When the drum rotates out of the water, a dedicated scraper or other discharge device gently scrapes off these surface-adhered solids . The drum then continues rotating, submerging again to “suck up” more water. Through this continuous rotation, solid-liquid separation is effortlessly achieved.
Feeding and Adsorption Stage
A portion of the drum (a cylindrical shell, its surface covered with filter cloth and screen) is submerged in the slurry to be filtered. At this point, a vacuum environment is created inside the drum via a vacuum pump. Driven by the pressure difference between the inside and outside, the liquid in the slurry passes through the filter cloth and enters the filtrate channels inside the drum, while solid particles are retained by the filter cloth, forming a uniform filter cake on the surface.
Dewatering and Drying Stage
As the drum rotates, the section with the adsorbed filter cake exits the slurry surface and enters the dewatering zone. At this point, the vacuum suction continues to act, drawing out any remaining liquid from the filter cake to make it drier.
Cake Discharge Stage
As the drum rotates to the discharge zone with the dried filter cake, the cake can be removed through three optional methods:- Either scrape the filter cake directly off the filter cloth surface with a scraper (similar to using a ruler to scrape dried mud off a table).
- Belt folding discharge, which utilizes changes in curvature for removal.
- Precoat discharge, employed for sticky materials.
Cleaning and Regeneration Stage
After the filter cake is discharged, the drum continues to rotate and enters the cleaning zone. Here, clean water or a dedicated detergent is used to rinse the filter cloth, flushing away any residual fine particles to restore the filter cloth’s filtration capacity and prepare it for the next filtration cycle.rotary drum filter application
The core application scenarios of vacuum drum filters lie in industrial fields characterized by continuous processing, medium-to-low viscosity slurries, uniform particles, the need for preliminary dehydration, and automated production. They are particularly irreplaceable in balancing efficiency, cost, and stability.
Chemical industries
Mining Industries
Food industries
Sewage treatment industries
Pharmaceutical industry
Environmental protection industry
Bioengineering industry
Petrochemical industry
why choose yinuo?
As a professional vacuum filter manufacturer, Yinuo, backed by a strong technical team and advanced design concepts, excels in the design of rotary drum vacuum filters by integrating features such as efficient and stable operation, wide material adaptability, and low consumption with durability, thus creating high-quality products that meet the needs of various industries.
- Efficient and Stable Operation
- Simple and Durable Design
- Wide Adaptability
- Energy – Saving and Low – Consumption Advantages
- High – Quality Product Assurance
