Do you know the precautions for daily operation of the powder separator? Let the powder maker manufacturer teach you!
What are the precautions for the daily operation of the powder separator? What are the differences?
Efficient powder separator is stable, efficient and long-term reliable operation. The price of powder separator is a concern of every user. During the use, pay attention to inspection, maintenance, maintenance, cleaning ash collection, anti-clogging (stone powder easy to stick to the pipeline), tightening, lubrication and other aspects. The precautions are as follows:
First, prepare before starting:
1. Confirm that the eddy current powder separator is fastened without loosening, especially the three tie rod screws are not loosened and tightened with the same torque to ensure that there is no vibration during operation.
2. Regularly and irregularly cleaning the circulating air duct and the ash collection inside the fan impeller of the Huifeng duct helps to start smoothly and have a certain amount of air volume and air pressure, so that the sorting performance will not be affected.
3. All lubrication points are lubricated normally to ensure the safe operation of the bearing.
4. Close the air door before starting, no-load starting current will not damage the fan and electrical appliances
The powder separator is widely used in coal mill, raw material unloading drying mill and cement mill system in the new dry process cement production line. Its performance is stable and reliable, simple structure, small air volume and so on. It is divided into three separation powder separator , centrifugal powder separator, cyclone powder separator and so on. Let's take a look at the detailed introduction below.
The three-separation powder separator is a breakthrough in the theory of "coarse and fine powder" in the conventional closed-circuit grinding system. It divides the material into three, that is, coarse powder, medium coarse powder and fine powder. The product system has simple configuration and low cost. , Can greatly increase the output of the mill; centrifugal powder separator is the first generation of wind classifier. The centrifugal powder separator has been modified to solve the problem of high cycle load of the previous generation centrifugal powder separator, which can not only increase the output of the mill, reduce costs, but also improve product quality; the cyclone powder separator is The stage deceleration drives the 60 blades on the turntable to rotate, forming a classification effect on the powder. The speed of the blade speed is adjusted according to the size of the finished powder.
During the production process of the lime powder separator, the airflow enters the volute from the primary air duct and the secondary air duct, and enters the powder selection area through the guide blades. Under the action of the rotating vortex blades and the horizontal partition plate, a balanced and stable Horizontally swirling vortex annular zone.
The material is fed by the slider. Under the action of the centrifugal force of the spreading disc, it is sprinkled to the buffer plate, and then falls into the annular powder selection area. Under the belt of the rotating airflow in the powder selection area, the particles of different particle sizes Under the action, the height of the powder selection area is continuously sorted by the vortex leaves of the rotor from top to bottom. Qualified fine powder passes through the vortex blades and is taken away by the gas from the air outlet pipe. The coarse powder goes down to the lower ash bucket for discharge. By virtue of such a unique structure, the material can be repeatedly sorted.
The powder separator is designed and manufactured to meet the requirements of the new national standard for cement. It can collect 3-32um particles as much as possible during use. Fully notice the three main factors that affect the working efficiency of efficient powder separators: dispersion, classification and collection.
Material Dispersion: Above the screw-type spreading pan, a new uniform distribution cone is newly designed to ensure that the material is evenly distributed on the spreading pan and fully dispersed. Material classification: The classification area is large enough to prepare for precise powder selection. Material collection: The newly-designed cyclone avoids the phenomenon of secondary dust, and the collection efficiency is particularly high. For easy-wearing parts, wear-resistant steel is lined, and even wear-resistant ceramic is pasted, which greatly extends the service life.
Closed circuit system characteristics
The secondary air is taken from the return pipe of the system, so that the fly ash in the closed circuit system is not affected by external weather conditions, which can greatly reduce the impact of external air humidity and temperature on the separation efficiency and fly ash quality;
The system does not have a large bag dust collector . The XFB type high-efficiency two-stage separator is used to ensure that the dust concentration at the fan inlet is less than 20g / Nm3, which minimizes the wear of the fan.