The Ultrasonic Sieving Unit, also known as the rotary sifting machine, is a state-of-the-art device that has been developed for the precise screening of fine powders. An Ultrasonic Sieve employs ultrasonic vibrations to enhance the separation of fine particles from bulk materials. It’s often used to achieve precise particle size separation and can help improve the efficiency of material classification. The product utilizes a vertical vibration motor as the excitation source. This motor is fitted with piezoceramic transducers on both sides. These transducers enable the motor to convert its rotational movement into horizontal, vertical, and inclined motions.
Following mechanical crushing and separation, the recycled material frequently contains fine contaminants (plastics, carbon, or other non-metallic impurities). Ultrasonic sieving is an effective method for separating these ultra-fine particles, thereby enhancing the purity of the valuable metal-rich powders. Valuable materials such as cobalt oxide and lithium carbonate typically exist in extremely fine particle sizes. The application of ultrasonic energy facilitates the efficient passage of these fine particles through the sieve, thereby minimizing material loss and maximizing recovery.
Powders generated during battery recycling processes often exhibit stickiness or electrostatic charging, which can lead to screen blockages. The application of ultrasonic vibration effectively prevents clogging, maintaining consistent material flow and ensuring high operational efficiency. Compared to traditional sieving, ultrasonic sieving is much faster. It reduces downtime and improves the overall efficiency of the recycling process.
As recycled materials are intended for reuse in the production of new batteries, maintaining a narrow particle size distribution is critical. Ultrasonic sieving enables precise particle size control, ensuring the recovered materials meet the stringent quality standards required for battery-grade applications.
The Ultrasonic Sieving Unit is a crucial piece of equipment in battery recycling purification. It ensures that recovered materials are high-quality, highly pure, and suitable for reintroduction into new battery production, supporting both economic and environmental goals of the recycling industry.
Technical Specifications
The Ultrasonic Sieving Unit is designed for high-precision classification of ultra-fine powders and recycled materials. By applying high-frequency ultrasonic vibration directly to the screen mesh, the system prevents mesh blinding, increases screening efficiency and delivers highly accurate particle size separation.
| Model | Throughput Capacity | Screen Diameter | Particle Size Range | Ultrasonic Frequency | Screening Decks | Installed Power | Approx. Dimensions (W × L × H) | Approx. Weight |
|---|---|---|---|---|---|---|---|---|
| USU-100 | 100 kg/h | 600 mm | 20–5,000 µm | 35 kHz | 1 | 1.2 kW | 800 × 900 × 1,350 mm | 180 kg |
| USU-250 | 250 kg/h | 800 mm | 20–5,000 µm | 35 kHz | 1–2 | 2.0 kW | 1,000 × 1,100 × 1,500 mm | 280 kg |
| USU-500 | 500 kg/h | 1,000 mm | 20–5,000 µm | 35 kHz | 1–3 | 3.0 kW | 1,300 × 1,400 × 1,650 mm | 480 kg |
| USU-1000 | 1,000 kg/h | 1,200 mm | 20–5,000 µm | 35 kHz | 1–4 | 5.5 kW | 1,600 × 1,700 × 1,900 mm | 780 kg |
| USU-2000 | 2,000 kg/h | 1,500 mm | 20–5,000 µm | 35 kHz | 2–4 | 9 kW | 2,000 × 2,100 × 2,200 mm | 1,250 kg |
| USU-5000 | 5,000 kg/h | 1,800 mm | 20–5,000 µm | 35 kHz | 2–5 | 15 kW | 2,600 × 2,800 × 2,500 mm | 2,200 kg |
Standard Technical Features
- Ultrasonic mesh deblinding technology
- High-frequency ultrasonic generator
- Multi-deck screening configuration
- High screening efficiency for ultra-fine powders
- Continuous operation
- Stainless steel contact surfaces
- Variable vibration intensity
- Automatic frequency tuning
- PLC & Touchscreen HMI
- Dust-tight enclosure
- Low noise operation
- Quick screen replacement
- Easy maintenance
- Modular industrial design
Typical Materials
- Black Mass
- Cathode Powder
- Anode Powder
- Graphite
- Lithium Compounds
- Precious Metal Powders
- Catalyst Ceramic Powder
- Metal Powders
- Rare Earth Powders
- Fine Mineral Powders
Operating Conditions
| Parameter | Recommended Value |
|---|---|
| Particle Size Range | 20–5,000 µm |
| Ultrasonic Frequency | 35 kHz |
| Operating Temperature | Ambient–80°C |
| Moisture Content | <5% (recommended) |
| Number of Screening Decks | 1–5 |
| Construction Material | AISI 304 / AISI 316L Stainless Steel |
| Operation Mode | Continuous |
Available Screen Mesh Sizes
- 20 µm
- 38 µm
- 45 µm
- 63 µm
- 75 µm
- 90 µm
- 106 µm
- 125 µm
- 150 µm
- 250 µm
- 500 µm
- Custom mesh sizes available
System Connections
- Feed inlet
- Oversize discharge
- Fine powder outlet
- Dust extraction connection
- Electrical power supply
- Ultrasonic generator connection
- Maintenance access doors