O-SEPA third generation high-efficiency dynamic powder separator

O-SEPA third generation high-efficiency dynamic powder separator

LJ type O-SEPA third generation high-efficiency dynamic powder separator
Working principle In the working state, the speed regulating motor drives the vertical transmission shaft to rotate through the transmission device, and the material enters the powder selection chamber through the feed port located at the upper part of the powder selection chamber, and then passes through the upper and lower two sides of the collection cone of the medium and coarse powder machine. The powder pipe between the cones falls on the spreading disc, and the spreading disc rotates with the vertical drive shaft. Under the action of inertial centrifugal force, the material is evenly scattered around, and the dispersed material enters the separator through the air inlet of the external fan. Under the action of the high-speed airflow in the powder chamber, the coarse and heavy particles in the object are thrown to the inner wall of the powder selection chamber by the inertial centrifugal force. After the collision, it loses kinetic energy and slides down the wall and falls into the coarse powder collection cone. The rest of the particles are rolled up by the rotating and rising air flow. Throw it to the inner wall of the powder concentrator, lose kinetic energy after collision, slide down the wall, and fall into the coarse powder collection cone. After the medium and coarse powder and fine powder pass through the large wind blades, under the action of the updraft, they continue to rise through the vertical guide blades and enter the secondary powder selection area. Under the action of the strong and stable plane vortex formed by the rotating cage rotor, the dust-laden airflow causes the medium and coarse powder to be thrown to the vertical guide vanes under the action of centrifugal force and loses kinetic energy, and falls into the medium and coarse powder collection cone. The medium and coarse powder pipe is discharged. The fine powder that meets the requirements passes through the cage rotor into its interior, enters the low-resistance cyclone separator with the circulating air, and then slides down into the fine powder collection cone to become the finished product.
Performance characteristics
Divide the material into three parts, namely "coarse powder (d>150cm), medium and coarse powder (60um<d<150um), and fine powder". The powder separation separates the coarse particles in the mixed powder, and the powder separation is completed in the annular space formed by the guide vane and the vertical turret, so the classification accuracy is extremely high and the separation efficiency is higher.
Compared with centrifugal, cyclone, and rotor type powder separators with similar sizes, the three-separation powder separator has greatly improved processing capacity and powder selection efficiency, so it is more suitable for large-scale production. The advanced and reasonable structure allows the powder selection air volume, output and feeding volume to change in a wide range without affecting the powder selection efficiency, and its classification performance is very stable.
Grading Principle Science. Combined with a variety of powder selection principles, the entire flow field is optimized by the aerodynamic analysis method, so that the equipment resistance is significantly reduced, and the energy saving and consumption reduction are very obvious. The rotor of the powder separator is equipped with a vortex rectifier that has obtained a national. The airflow in the rotor only rises and does not rotate relative to the rotor. After the airflow enters the rotor, the driving force to the rotor is reduced due to the action of the moment of momentum, which saves the driving power and reduces the worn out. The material is selected in the powder selection area twice, and the classification accuracy is higher.
The main shaft of the powder separator adopts stepless speed regulation, which is convenient for detail adjustment, sensitive and reliable, and has a wide adjustment range.
Re-optimize the design of the powder selection area and the space range of the lifting area, and make full use of the main space to increase the gasification of the material and improve the powder selection efficiency.
The wear-resistant parts of the powder separator, such as the spreading disc, the snail horn of the cyclone, the guide vane and the rotor grading vane, are all made of wear-resistant materials or treated with anti-wear technology, and their wear rate is low. The new manganese plate is used as the inner lining, which effectively prolongs its service life. The lower bearing seal of the main shaft adopts a new design scheme, which effectively solves the two major problems of bearing dust and lubricating oil leakage, and effectively prolongs the service life of the lower bearing.
When designing the foundation of the powder concentrator, the principle of mechanical vibration reduction is adopted, so that the resonance rate between the powder concentrator and the foundation is not close to the inherent efficiency of the powder washing machine and the natural frequency of the foundation, which fundamentally solves the problem of vibration of the powder concentrator that has plagued manufacturers for a long time.
Coarse powder pipe, medium and coarse powder pipe and cyclone are all equipped with double interlocking air valves, which greatly reduces the air leakage rate of the system and overcomes the defect of large dust during the operation of the previous powder separator.
Main technical new year function parameters