Rotary Feeder

Rotary FeederThe working principle involves a rotating discharge valve with a rotor inside, which has multiple blades. The material in the upper hopper falls due to gravity and fills the gaps between the blades. The material is discharged from the bottom outlet as the rotor rotates. Since the spaces between the rotor blades are uniform, the rotor speed can be either constant or variable. Therefore, the rotating discharge valve is widely used in industries such as environmental protection, metallurgy, chemicals, grain, cement, road construction, and others for unloading, feeding, and metering of powdered and granular materials. What's more, with the development of microcomputer technology, the demand for real-time supply of powdered and granular materials in various industries is continuously growing, making the combination of the rotating discharge valve with frequency conversion and speed regulation the most ideal solution for real-time feeding.

Model of the rotary feeder:

(One) Standard Type, Code J

The top and bottom flanges of the rotary feeder are typically square or round, or can be selected by the user. The standard model is generally suitable for windless pressure conditions.

(2) Wear-Resistant Impeller, Code N indicates

The features of the rotary feeder include the tip of the rotor blades being made of special wear-resistant material, ensuring a good contact between the blade tips and the inner wall of the housing. After wear, the blade tips can be easily adjusted to maintain a good contact with the inner wall of the housing. If a sealed-type rotor is used, it offers better gas locking performance. The wear-resistant type is mainly suitable for materials with strong grinding properties.

(3) High-Temperature Resistant Model; Code H indicates

The temperature of the material conveyed by the rotary feeder can reach up to 280°C, and the bearings at both ends are adequately isolated to prevent ultra-fine powder from contacting the bearings.

Please provide the following information when purchasing a rotary feeder:

1. Is it real-time supply, full supply, or gas lock?

2. Supply Rate: kg/h

Calculation Method for Discharge Valve Feed Capacity

W(m3/h)=V(l/rev.)×N(rpm)×60×η(%)/1000

Discharge Rate (m³/H)

V: Displacement (l/rev)

N: Rotor Speed (rpm)

η: Material filling rate ≤ 100%

Material filling rate selection:

Pelletized Material: η ≈ 0.6 - 0.9

Powder Material: η ≈ 0.5 - 0.8

The fill rate mentioned above is for reference only. For certain special materials, it is recommended to measure after actual operation.

3. Material conveying properties, name, particle size, bulk density, temperature, moisture content, and angle of repose.

4. Gas transmission name and pressure difference between the upper and lower flanges of the discharging valve.

5. Flange specifications.

Selection of rotary feeders:

Before ordering a rotary feeder, it's essential to understand the technical specifications, installation dimensions, rotational speed, and application range to select the appropriate accessories to avoid unnecessary losses.

2. The installation dimensions and rotational speeds in our rotary feeder's instruction manual are standard at our factory. Should your company have specific requirements, we can accommodate them by designing and manufacturing to your specifications.

3. The rotating feeder housing is made of standard cast iron, and we can also produce cast stainless steel, cast aluminum, cast copper, ball mill cast iron, welded casings, etc. Additionally, we offer special material feed valves for specific industries and environments, such as the special material Inconel 600 used in the chlor-alkali industry.

4. The rotary feeders are paired with standard Y-series general-purpose motors and can also be equipped with explosion-proof motors, variable-speed motors, inverters, etc., as per the user's specific requirements.

Product Description:

Rotary FeederThe working principle involves a rotating discharge valve body with multiple blades. The material in the upper hopper falls due to gravity and fills the gaps between the blades. The material is discharged from the lower outlet as the rotor rotates. Since the space between the rotor blades is uniform, the rotor speed can be either constant or variable. Therefore, the rotating discharge valve is widely used in industries such as environmental protection, metallurgy, chemical engineering, grain, cement, road construction, etc., for powdered materials.