Fluidized bed airflow pulverizer

Fluidized bed airflow pulverizerDuring the crushing process, high-speed particles will not collide with the walls of the crushing chamber, and the material will not pass through the nozzle. Therefore, the wear is extremely light and the product is not contaminated. The upper part of the host is equipped with a horizontal grading wheel, which can prevent coarse particles from entering the finished product. Due to the use of the fluidized bed principle (where the airflow expands into a fluidized bed and collides and rubs to crush particles) and the internal horizontal turbine grading device, a high-speed small diameter grading wheel is adopted to solve the problem of large particles being unable to be captured by large diameter and low-speed airflow grinding. Compared with other types of airflow mills, the airflow condition is better and can save 30-40% energy. Narrow particle size distribution with no large particles, high degree of automation, low noise, and compact structure.

Fluidized bed airflow pulverizerThe integration of multi nozzle technology, fluidized bed technology, and vertical classification technology has achieved the diversification of flow fields, fluidization of material layers, vertical classification, and electromechanical integration combination technology system, which is the development direction of air flow mills.

Working Principle:

The material enters the crushing chamber, and the supersonic jet forms a centripetal counter jet flow field at the lower part of the crushing chamber. Under the action of pressure difference, the bottom material of the mill becomes fluidized. The accelerated material converges at the intersection of multiple nozzles, producing intense impact collision friction and crushing. The crushed fine powder moves with the airflow to the upper turbine classifier, and under the action of centrifugal force, the fine powder that meets the fineness requirements is discharged.

Features:

The fluidized bed airflow crusher integrates crushing, grading, mixing, and homogenization mechanisms, achieving the advantages of online operation.

The impact velocity is high, and the particles are accelerated by the airflow nozzle and collide. The impact velocity is the superposition of two relative velocities, resulting in high crushing efficiency.

Low energy consumption, compared to other types of airflow mills, it can save one-third of energy.

The wear is minimal, as the main crushing effect is the mutual impact and collision of particles in the fluidized bed. High speed particles rarely collide with the grinding wall and the material does not pass through the nozzle, making it suitable for crushing high hardness materials.

Equipped with a vortex wheel ultrafine classifier, it has high classification accuracy and a narrow range of product particle size distribution.

The automatic control function is very convenient to operate.

Low noise.

Compact structure and small footprint.