What Is a Rotary Feeder?

As a special discharge equipment, the star discharger plays a great role in cleaning and cleaning work, so we need to summarize some of its characteristics, so that the star discharge can be better. The device does a comprehensive understanding and maintenance, and exerts its maximum capabilities.

Star discharger

The star-shaped unloader is used to be installed at the discharge port of the unloader working under negative pressure. The upper part receives the discharge from the unloader.

1. The star discharger is commonly used in pneumatic output systems. For pressure output systems or negative pressure output systems, the star discharger can evenly and continuously feed the feeding pipe. In order to ensure that the gas and solids in the pneumatic output pipe are relatively stable, so that the pneumatic conveyance can work normally, at the same time, the upper and lower air pressure of the unloader can be cut off to play the role of air lock. Therefore, the star discharger is an important component commonly used in pneumatic conveying systems.

2. When the material in the upper silo falls by its own weight and fills the gap between the blades, it is discharged in the lower part as the blades rotate. Therefore, the star discharger can discharge quantitatively and continuously.

3. The star-shaped unloader can be used in the material collection system as the unloader of the silo. The star discharger is currently the most advanced discharge device in China, and is often used as one of the important equipment in the dust removal system. It is especially suitable for dust, small particle materials, and it is widely used in environmental protection, metallurgy, chemical, food, cement, road construction, drying equipment and other industrial projects.

4. Temperature-resistant type The temperature of the material it transports can reach 280 ° C. The bearings at both ends are separated from the impeller to prevent the ultra-fine powder from contacting the bearing. The temperature of the high temperature unloader can reach 500 ° C, and it is connected by sprocket. There is a certain distance between the reducer and the unloader housing.

The star-shaped unloader is composed of a rotor impeller with several blades, a casing, a seal, a reducer, and a motor. The star-shaped unloader is also called a rotary feeder. Air lock valve, star-shaped ash discharge valve, star-shaped feeder, wind shut off and other names.

The star-shaped unloader can be used in the material collection system. As the unloader of the silo, the star-shaped unloader is currently the most advanced unloading device in China.It is often used in the dust removal system as one of the important equipment of the dust removal system. It is especially suitable for dust, small particle materials that are widely used in environmental protection, metallurgy, chemical industry, food, cement, road construction, drying equipment and other industrial industries.

The characteristics of the star-shaped unloader : 1, compact structure, beautiful shape, easy to use. 2, smooth operation and low noise. 3. Due to the bearing, the gear box is a distance away from the housing, which has greatly improved the lubrication for high temperature. 4, can be designed and manufactured according to user requirements. 5. Before the product leaves the factory, it is filled with special grease for pinwheel cycloid reducer. Please check the oil regularly. The star feeder is commonly used in pneumatic output systems. For pressure output systems or negative pressure output systems, the star discharger supplies the feeding pipe uniformly and continuously to ensure that the gas in the pneumatic output pipe is stable. Therefore, the pneumatic conveying can work normally, and at the same time, the upper and lower air pressure barriers of the unloader can be used to lock the air. Therefore, the star unloader is an important component commonly used in pneumatic conveying systems.

The star discharger is divided into three types: ordinary type, pressure type and high temperature type.

Pressure-resistant type: It uses a closed rotor, which can be widely used in suction, pressure-feed air conveying systems and negative pressure conveying equipment.It can ensure that the air pressure in the conveying pipe does not leak, and it can safely transport and close materials. Therefore, it is called an airlock in this regard.It not only can withstand pressure, but also has ordinary functions.

High temperature resistance type: According to the temperature rise of the material conveying and the discharge port, because the temperature and quality have an impact on the body expansion, and are not good for the bearing and the oil seal system.

Ordinary type: It can be used for ordinary materials below 80 degrees and normal temperature.It can continuously and uniformly feed materials into the conveying pipe.In the system and the separation dust collection section, it can also function as a unloader.

The star discharger device is the main equipment for dust removal, air supply and other equipment feeding. The star discharger is suitable for powdery materials and granular materials. Widely used in environmental protection, metallurgy, chemical industry, food, food and other industrial sectors.

Star unloaders (also known as rigid wheel feeders, star feeders, wind closers, rotary feeders, etc.) are widely used in construction materials, metallurgy, chemical, power and other sectors as ash for various types of dust removal equipment. The bucket unloading device relies on the gravity of the material and the compulsory action of the working mechanism of the feeder to discharge the material in the bin and continuously and uniformly feed it into the next device. It can also be used as a feeding and discharging device for various mills, dryers, silos and other equipment, suitable for drying powdery and small granular materials.

The unloading device is divided into three parts, the motor, the cycloid pin wheel deceleration and the rotary dragon ash discharge valve.

(1) By adopting the principle of planetary rotation, the input and output shafts are on the same axis and have the uniqueness of being directly integrated with the motor, so the structure is compact, beautiful, novel, small in size and light in weight.

(2) Superior sealing performance, uniform and stable feeding, stable unloading operation, low noise, few failures, long service life and high wear resistance.

(3) Bearings, gearboxes, away from the valve body, to avoid the influence of high temperature dust, the front and rear end covers have good sealing performance, prevent dust from leaking out, and prolong the service life of motor parts and lubrication systems.

(4) Strong overload capacity, low impact inertia force, suitable for frequent starting and reverse rotation.

(5) Configure special special motors according to user needs, such as explosion-proof, frequency, speed, marine motors, etc. to meet the special requirements of users. Material can also be processed according to user needs, such as high temperature resistance, corrosion resistance, stainless steel, flexible blades, explosion-proof impellers, etc.

1. Before using the star-shaped unloader, check the quantity and type of lubricant in the reducer, change the new oil after one month of operation, and change the oil once a year thereafter.
2. Connect the air source interface and check whether the interface is blocked by foreign objects. Make sure the interface is clean and unobstructed.
3. Before using the star-shaped unloader, make sure that the rotation direction of the rotor is clockwise (looking from the shaft end of the reducer, it is consistent with the arrow on the sprocket cover);
4. Before using the star unloader, open the sprocket cover to check the tension of the chain, and it should be checked regularly during the operation; at the same time, apply appropriate grease to the chain and sprocket;
5. During the entire use of the unloader, it is advisable to adjust the pressure reducing valve so that the pressure at the seal is greater than the pressure of the material in the valve body by 0.05 MPa. The gas is oil-free, dry compressed air;
6. During the entire use of the star discharger, the air source at the seal always exists. Only after you are sure that the valve is out of service, you can close the air source;

1. During the transportation and installation of the star-shaped unloader, it should be kept stable, avoid collision, and even cause the shell to deform and deform.
2. The reducer has been filled with Lubricant No. 0, and the unloading valve has been filled with lithium-based grease before leaving the factory. Within 6-10 months after being put into use, the transmission and bearing components should be supplemented or replaced with grease. If the ambient temperature is high, humidity or excessive dust in the air, the oil change time should be shortened appropriately.
3. During use, if the equipment leaks air and ash in the axial direction, the material cover can be firmly pressed.
4. During the operation, avoid overloading the equipment caused by large material particles and strong bonding force, or equipment jamming or short circuit caused by equipment foreign bodies in the dust collector, which cause equipment or damage. It is recommended that users check and install in time. Overload protection device.
5. This machine is suitable for continuous working system, allowing forward and reverse operation.
6. When the output shaft, input shaft and other parts and accessories of the unloader are not allowed to be hammered directly to prevent damage.