Vertical Air Classifier of calcium carbonate

Vertical Air Classifier of Calcium Carbonate is mainly used for more refined materials. The fractional particle size is 1.5 to 0.005 mm, and the crude material is sieved. The principle of pulverization is substantially the same as the hydraulic level, and the above settlement theory can also be used for airflow classification. However, in the airflow classification, since the density and viscosity of the air are much smaller than the density and viscosity of water, the same particles are more settled in the air than in the water. Moreover, the density and viscosity of the air vary with temperature and pressure. In order to cause air flow, wind grading equipment typically requires an appropriate fan (exhaust or blast). When the airflow is classified, the fine particles are usually taken away by the airflow. In some cases, the feedstock is sent to the grading device with the airflow. It is well known that the load of solid particles in the air under normal pressure does not exceed 500 g / m3 air. When it reaches 1 kg / m3, the particles fall from the airflow. The load is related to the density and particle size of the particles. When the fine particle material is treated, the load generally does not exceed 200 to 300 g / 3 air. According to this calculation, the volume concentration in the gas stream is much smaller than 0.03. Therefore, when the airflow is classified, in most cases, it belongs to the free settlement. The speed required to move the particulate material in the horizontal and vertical directions is relatively large, and the speed required in the horizontal direction is relatively large, and as the particle density increases, for example, for puls with a density of 1.5. Gram / cubic centimeter. The minimum wind speed is 2 m / sec; a powder material having a density of 2.5 g / cm, the speed is not less than 3.5 m / sec; a powder having a density of 4 g / cm 3, a minimum speed of 4 meters per second. Due to the complexity of the situation, the appropriate airflow rate in each particular situation should be determined by experiments. In the rising airflow, the water flow rate required to suspend a certain density and particle size is greater than the calculated value of the free settling, which is due to the uneven distribution of the airflow along the graded chamber portion. The Vertical Air Classifier of Calcium Carbonate has the characteristics of high grading range, high grading efficiency, high level precision, accurate cut particle size, and good stability.

Vertical Air Classifier of Cal during productionCium carbonate will generate certain noise, the main reason for generating noise is: (1) When the coal mill is running at high speed, the running component drives air to generate a "whistle" call: (2) When the device is running. The sound of vibration is generated; (3), the rubbing between the turntable or the hammer and the drug; the rotating part itself is friction. For noise generated, the main solution is as follows: (1) add lubricating oil to each rotating member, if the bearing and the axis are misalign, adjust the bearing wear, replace the bearing; (2) The heat generated during the crushing process also produces noise Cooling through the crushing chamber water cooled cooling, the muffler is mounted in the air intake port of the pulverization chamber; (3) damping the damping pad and other devices.