Over 10,000+ customers' choice, Focus on screening industry 40+ years
The Gaofu S49 series rotary vibrating sieve for rice slurry uses a vertical vibration motor as the excitation source. Eccentric weights installed at the upper and lower ends of the motor shaft convert the rotational motion into a horizontal, vertical and tilting three‑dimensional compound vibration – known as "three‑dimensional vibration". This compound vibration is transmitted to the screen deck, causing the rice slurry to follow a specific fluidised motion trajectory on the screen surface.
For rice slurry filtration, this three‑dimensional motion offers three technical advantages:
First, rapid passage of slurry through the screen. Under three‑dimensional vibration, the rice slurry forms a thin flowing layer on the screen surface. The liquid portion quickly passes through the screen, while solid impurities are retained on the screen surface. This high‑frequency, low‑amplitude vibration keeps the slurry in a fluidised state, avoiding the decline in filtration efficiency caused by slurry accumulation.
Second, automatic discharge of impurities. Solid impurities retained on the screen surface – coarse fibres, bran and broken rice grains – move along the screen surface under vibration and are automatically discharged from the reject port. The equipment can operate continuously without frequent stoppages for cleaning.
Third, adjustable screening accuracy. The equipment supports 1 to 5 screen decks, allowing flexible selection of mesh sizes according to the fineness requirements of the rice slurry. For routine rice slurry filtration, meshes of 60, 80 or 100 mesh can be configured. Screening accuracy can reach up to 600 mesh (0.02 mm) and filtration precision down to 5 microns.
The most common problem in rice slurry filtration – screen blinding – arises from the adhesion and accumulation of starch and fibres on the screen surface. The Gaofu rotary vibrating sieve for rice slurry systematically addresses the screen blinding issue through the following design features:
Bouncing ball cleaning system. Food‑grade silicone balls are placed under the screen deck. During operation, the balls continuously tap the underside of the screen, dislodging starch particles and fibres that are blocking the mesh openings. This cleaning method is continuous and automatic, requiring no manual intervention, effectively solving the common problem of traditional filters blinding and requiring frequent stoppages for cleaning.
High‑frequency, low‑amplitude vibration configuration. Through appropriate frequency and amplitude parameter settings, the rice slurry is kept in a fluidised motion on the screen surface. The slurry passes through the screen quickly, while coarse fibres and impurities move along the screen surface and are automatically discharged. The reduced residence time of the material on the screen surface minimises the opportunity for adhesive layers to form.
Optional ultrasonic anti‑blinding system. For rice slurry filtration with higher viscosity or stricter precision requirements, an optional ultrasonic anti‑blinding system can be added. The high‑frequency vibration generated by the ultrasonic transducer is superimposed on the screen surface, effectively breaking the adhesion between the material and the screen, further reducing the risk of blinding.
These three anti‑blinding measures work together to maintain stable filtration efficiency during long‑term continuous operation, significantly reducing the frequency of stoppages caused by screen blinding.
Rice slurry is used directly in food processing, so the materials and structural design of the equipment that contacts it must meet clear hygiene requirements. The Gaofu rotary vibrating sieve for rice slurry incorporates systematic design in the following areas:
Food‑grade stainless steel. All parts of the equipment that contact the rice slurry – screens, screen frames, feed port, discharge ports, etc. – are made of 304 food‑grade stainless steel, with a mirror‑polished surface. For production lines requiring even higher cleanliness, 316L stainless steel is available. The whole machine has no hygiene dead corners, eliminating material residue and bacterial growth.
Fully enclosed sealed structure. The equipment has a fully enclosed structure, so during production the slurry does not splash and no foreign matter can fall in. This design provides three assurances: preventing foreign matter from entering the filtration system, avoiding slurry evaporation and odour escape, and maintaining a clean workshop environment.
Quick‑release design. The equipment is equipped with quick‑release clamp rings, allowing the screen, sealing rings and other components to be disassembled without tools. Screen changes and cleaning operations are simple and quick, taking only 3 to 5 minutes. This design greatly reduces downtime for batch changes and routine maintenance.
Rice product processing is typically continuous flow production, so the filtration equipment must have a clear capacity to match line requirements. The throughput of the Gaofu rotary vibrating sieve for rice slurry can be flexibly adapted according to model and configuration:
In standard configurations, the equipment can process several to several tens of tonnes per hour, matching the capacity needs of different‑scale rice product production lines.
Taking a typical rice slurry filtration configuration as an example, the GFS series slurry vibrating screen covers a throughput range of 800 to 10,000 litres per hour. The screen mesh can be selected from 60 to 100 mesh according to process requirements – 60 mesh for conventional rice products such as rice noodles and rice crackers, and 100 mesh or finer for products with higher fineness requirements, such as infant rice cereal.
The equipment supports single‑deck or multi‑deck configurations, which can be flexibly combined according to the impurity content and fineness requirements of the rice slurry. For production lines that need both coarse and fine filtration, the multi‑deck configuration completes multi‑stage filtration in one pass, reducing process transfer time and equipment investment.
From the perspective of actual production conditions in rice product processing, the Gaofu rotary vibrating sieve for rice slurry delivers value in four dimensions:
1. Improved product purity. Bran, coarse fibre, broken rice particles and other impurities are effectively intercepted, resulting in fine, uniform rice slurry. The finished rice noodles, rice crackers and steamed rice rolls have a smooth, white surface and a delicate texture, ensuring product grade and market value.
2. Continuous line operation. The bouncing ball cleaning system and high‑frequency, low‑amplitude vibration design effectively solve the screen blinding problem in rice slurry filtration, allowing the equipment to run continuously for long periods. The production line no longer needs to stop frequently because of filter blinding, and overall capacity is effectively utilised.
3. Hygienic safety compliance. Food‑grade stainless steel and the dead‑corner‑free design make the equipment easy to clean with no material residue. Residual rice slurry can ferment and spoil at room temperature, contaminating the next batch. The quick‑release structure makes cleaning and screen changes simple and fast, reducing cross‑contamination risk at the equipment level.
4. Lower total operating costs. Automatic discharge reduces the frequency of manual cleaning. The anti‑blinding design extends screen service life. The quick‑change screen structure shortens downtime. The combined effect of these three design features keeps the long‑term operating costs of the equipment under control.
About Gaofu
Xinxiang Gaofu Machinery Co., Ltd. was originally founded in the 1980s. After more than 40 years of development, the company has become a "National Specialized and Sophisticated 'Little Giant' Enterprise", a "National Green Factory", a "National High-tech Enterprise", a "National Intellectual Property Advantage Enterprise", and the "President Unit of the Vibration Association". It also hosts the "Henan Provincial Industrial Design Center", the "Henan Provincial Engineering Technology Research Center for Intelligent Online Screening Systems", and the "Xinxiang Municipal Engineering Technology Research Center for Fine Screening". The company has been granted more than 500 invention, utility model and design patents, has received the "Science and Technology Achievement Award" issued by the Ministry of Industry and Information Technology, and has participated in drafting four "National Standards".
Gaofu's product portfolio covers several series and hundreds of varieties, including vibrating screening equipment, conveying equipment, coal crushing equipment, filtration equipment, and automated material handling systems. Its main products include vibrating screens, screening machines, vibrating sifters, rotary vibrating screens, ultrasonic vibrating screens, linear screens, air flow screens, gyratory screens, roller screens, dewatering screens, bar screens, vacuum feeders, dust-free feeding stations, ton bag feeding stations, feeding systems, automatic powder feeding systems, automatic slag discharge filters, leaf filters, clay filters, toothed roll crushers, coal crushers, and other equipment. These are widely used in many industries such as food, pharmaceuticals, chemicals, metallurgy, building materials, mining, thermal power, and environmental protection, earning the trust and praise of over 10,000 customers worldwide.
Gaofu products are not only popular in Greater China but are also exported to more than 100 countries and regions, including Russia, Canada, the United States, New Zealand, Japan, Brazil, South Africa, etc. The company adheres to its mission: "Enhance material quality and efficiency, meet customer needs", walking side by side with customers for harmonious and win-win cooperation. Today, Gaofu has become an approved supplier to many Fortune 500 companies, including CNPC, Sinopec, Sinochem Group, China Resources Group, Sinopharm Group, COFCO Group, China National Building Material Group, China Aerospace, and Jinchuan Group.
Gaofu Machinery – Global No.1 in Vibrating Screen Sales. In May 2024, Frost & Sullivan, an international authoritative advisory firm, based on its research on the global vibrating screen market and calculated according to global vibrating screen sales volume in 2023, issued a market position confirmation certificate to Gaofu Machinery.
