How to better choose the unloader

Nowadays unloader is widely used, next, I will introduce unloader for you in detail.

The star unloader is the main equipment for dust removal equipment, air supply, and another equipment feeding. Star unloader is suitable for powder and granular materials.

Star unloader is used for installation in the discharge port of the unloader working under negative pressure, the upper part accepts the material discharged from the unloader, relying on the rotating impeller to play a role in conveying the material, but also bears the role of sealing to prevent the pneumatic conveying process from the discharge port inhalation of air, to ensure the normal discharge of the unloader as special unloading equipment, plays a big role in cleaning and cleaning work.

A star unloader classification: star unloader can be divided into ordinary type, pressure-resistant type, and high-temperature resistant type three categories.

Pressure-resistant type: it adopts closed type rotor and can be widely used in suction type, pressure type airflow conveying system, and negative pressure conveying equipment, it can ensure that the airflow pressure in the conveying tube does not leak, can safely convey and collect knotted materials, so in this regard is called Wan lock air machine, it can not only be pressure-resistant, at the same time with ordinary type function.

High-temperature resistant type: according to the material conveying and the temperature rise of the lower material mouth is different because the temperature quality has an impact on the expansion of the body, as well as the bearing and oil seal system is not good.

Common type: It can be used on the usual materials below 80 degrees and normal temperature, it can continuously and evenly supply materials to the feeding pipe, while in the system and separation dust collection department, it can also function as a discharger.

Second, the working principle of the star unloader

1. The star discharger is commonly used in the pneumatic output system. For a pressure output system or negative pressure output system, the star discharger can evenly and continuously supply material to the feeding tube. In order to ensure that the gas and solids in the pneumatic output tube are more stable, so that the pneumatic conveying can work normally, and at the same time, it can isolate the upper and lower air pressure of the unloader and play the role of the airlock. Therefore, the star discharger is an important part commonly used in pneumatic conveying systems.

2. When the material in the upper bin falls by its own weight and fills the gap between the blades, it is discharged in the lower part with the rotation of the blades. Therefore, the star unloader can discharge material quantitatively and continuously.

3. Star unloader can be used in the collection of material systems, as a silo unloader. The star discharger is currently the most advanced discharging device in China and is commonly used in dust removal systems as one of the important equipment in dust removal systems. It is particularly suitable for dust, small particles of material, environmental protection, metallurgy, the chemical industry, grain, cement, road construction, drying equipment, and other industrial industry projects selected by choice.

4. Temperature resistant It conveys materials up to 280°C The bearings at both ends have certain isolation from the impeller, which can prevent the ultra-fine powder from contacting with the bearings. The temperature of the material conveyed by the high-temperature resistant type discharger can reach 500°C. It is connected by a chain wheel.

Three, application and troubleshooting

Star unloader is widely used in building materials, metallurgy, the chemical industry, electric power, and other sectors as a dust collector unloading device for all kinds of dust removal equipment, which relies on the gravity of the material and the compulsory action of the feeder working mechanism to unload the material in the bin and feed it continuously and evenly 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 powder and small granular materials.

Four, star unloader installation and use

1. Star unloader in the process of operation, to avoid overload operation of equipment caused by large material particles, strong adhesion, or dust collector in the trade of foreign objects caused by equipment jamming or motor short circuit leading to equipment or damage, it is recommended that the user timely bolts check and add overload protection device.

2. In the process of use, such as equipment along the axial leakage of wind, leakage of ash, and other phenomena, can be firm pressure material cover can.

3. The machine in the factory before the reducer has been injected with sufficient lubricant 00 grease, the ash unloading valve has been injected with sufficient lithium grease, put into use within 6-10 months, the transmission and bearing parts should be added or replaced grease, if in the high ambient temperature, wet or too much dust in the air, should be appropriate to shorten the oil change time.

4. The star unloader should be kept stable during transportation and installation to avoid a collision, which may cause shell fracture and deformation, etc.

5. Unloader installation output shaft and input shaft and other parts accessories, can not be directly hammered to prevent damage.

6. This machine is suitable for a continuous working system, positive rotation, and reverse rotation can be used.