Star-type discharger, also known as rotary feeder, air lock valve, star-type ash discharger, star-type feeder, air shutter, etc., is mainly used at the discharge port working under negative pressure.Star-type discharger is commonly used in pneumatic conveying systems, including pressure conveying systems and negative pressure conveying systems. It conveys materials through a rotating impeller and plays a sealing role to prevent air from being sucked in from the discharge port during pneumatic conveying. This ensures uniform and continuous feeding to the conveying pipe, maintaining stable air-solid ratio in the pneumatic conveying pipe, thus enabling the normal operation of pneumatic conveying.At the same time, it can isolate the air pressure between the upper and lower parts of the discharger to achieve air locking, ensuring the normal discharging of the star-type discharger.When materials in the upper silo fall by their own weight and fill the gaps between the blades, they are discharged from the lower part with the rotation of the blades. Therefore, the star-type discharger can discharge materials quantitatively and continuously.Star-type discharger is widely used in the discharging operation of powder and granular materials, especially in industrial sectors such as environmental protection, metallurgy, chemical industry, grain processing, cement production, road construction, and drying equipment.It can be used as one of the important equipment in dust removal systems, especially suitable for handling dust and small granular materials.Generally, the structure of a star-type discharger consists of a rotor impeller with several blades, a shell, seals, a reducer, an electric motor, etc.When materials in the upper silo fall by their own weight and fill the gaps between the blades, they are discharged from the lower part with the rotation of the blades. Therefore, the star-type discharger can discharge materials quantitatively and continuously.
Star-type discharger is usually composed of a rotor impeller with several blades, a shell, seals, a reducer, an electric motor, etc.It features a compact design, elegant and novel appearance, small size and light weight, making it very suitable for use in various occasions.At the same time, it has excellent sealing performance, which can effectively prevent material leakage and air inhalation.
Star-type dischargers are usually designed and manufactured using wear-resistant materials to adapt to the abrasiveness of different materials.For example, when handling highly abrasive materials, the blades of the star-type discharger may be made of wear-resistant alloy to extend the service life of the equipment.At the same time, to adapt to different working environments, the structure of star-type dischargers may vary, such as explosion-proof type and high-temperature type, to meet the needs of specific working conditions.
A star-type discharger is usually composed of a rotating impeller and a fixed shell.The impeller is equipped with multiple blades that rotate around the axis, forming a star-shaped appearance, hence the name "star-type discharger".When materials enter the discharger, they are pushed by the blades and move along the shell to the discharge port.By controlling the rotation speed of the impeller, the material conveying volume can be adjusted to achieve continuous or intermittent material discharge.
In practical applications, the selection and maintenance of star-type dischargers are very important.A suitable star-type discharger can improve production efficiency and reduce energy consumption, while improper maintenance may lead to equipment failure and affect production.Therefore, regular inspection and maintenance are crucial to ensuring the normal operation of the star-type discharger.
In conclusion, the star-type discharger plays an important role in industrial production.The diversity of its design principles and application fields makes it an indispensable equipment for material handling in many industries.Understanding the working principle and correct usage of the star-type discharger is of great significance for improving production efficiency and ensuring production safety.With the development of technology, the performance of star-type dischargers will be more optimized and their application scope will be more extensive in the future.
| Model | Output(m³/h) | Rotating speed of the vane(r/min) | Import and export dimensions L × W (mm) | Power | Speed(r/min) |
| GY-Φ200×200 | 7 | 34 | 200×200 | 1.1 | 34 |
| GY-Φ200×300 | 10 | 34 | 200×300 | 1.1 | 34 |
| GY-Φ300×300 | 23 | 34 | 300×300 | 1.1 | 34 |
| GY-Φ300×400 | 31 | 34 | 300×400 | 1.5 | 34 |
| GY-Φ400×400 | 53 | 34 | 400×400 | 3 | 34 |
| GY-Φ400×500 | 67 | 34 | 400×500 | 3 | 34 |
| GY-Φ500×500 | 106 | 34 | 500×500 | 4 | 34 |