grading wheel isThe core component of airflow mill and classifier products, dedicated to particle size sorting of powders. The coarse and fine materials that move to the classification area with the rising airflow are separated. The fine particles that meet the particle size requirements enter the next component through the classification wheel and are collected. The coarse particlesThe particles drop to the crushing area to continue crushing.
Types of grading wheels
According to different materials, grading wheels are divided into: ceramic grading wheels, metal grading wheels and combined grading wheels. Here we focus on ceramic grading wheels.
Alumina ceramic grading wheel is one of our common ones. Alumina ceramic is a very wear-resistant precision ceramic The material has extremely high hardness, wear resistance, strong corrosion resistance, high temperature resistance, corrosion resistance and biological inertness, so using alumina ceramics to make grading wheels is a very good choice.
Ceramic grading wheel composition and structure
Includes a front flange, a rear flange, multiple blades, and an air sealing plate. The blades It is fixedly connected to the front flange and the rear flange respectively. There is an annular groove on the air sealing plate, and the rear end of the blade is inserted into the annular groove. There are feed slits between adjacent blades, and cavities are formed inside the multiple blades. The rear end of the blade has a radially enlarged blade tail. The rotational linear speed of the blade tail is higher than the rotational linear speed of the blade part on the front side. Therefore, the airflow formed by the rotation of the blade tail can block the powder outside the blade tail, so that The material powder must be selected by the rotation of the blade and enter the discharge pipe from the feed slot.
