vertical ultrafine impact mill can meet 2 µm to 100 µm

Vertical Ultrafine Impact Mill Overview

As a kind of vertical arrangement structure of impact mill, vertical ultra-micro impact mill not only improves the energy utilization rate, but also optimizes the material flow path, so that it saves space and achieves high efficient crushing effect at the same time.

Features of Vertical Ultrafine Impact Mill

• Integrated structure design: vertically integrating the crushing area and grading area, shortening the material flow and reducing energy consumption.
• Flexible and controllable fineness: by adjusting the rotating speed and grading system, the product particle size range is wide, covering D97 2μm to 100μm.
• Compact structure, small footprint: vertical design makes the whole machine occupy less space, suitable for a variety of plant layout.
• No metal pollution: optional ceramic or polymer material lining, suitable for electronics, lithium, pharmaceutical and other ultra-high purity fields.
• Intelligent slag discharge system: automatically discharge large particles and impurities to enhance the stability of the finished product.
• High adaptability to deal with agglomerated materials: with the ability to depolymerize and disperse, it can efficiently deal with agglomerated powder after sintering or drying.

Advantages of Vertical Ultra-micro Impact Mill

• Synchronization of crushing and grading: avoid over-crushing and improve the yield of fine powder.
• Totally closed operation system: working under negative pressure, effectively preventing dust from escaping and protecting the operating environment.
• Low-temperature processing: applicable to the processing of heat-sensitive materials, to maintain the stability of material properties.
• Suitable for inert gas environment: can be nitrogen, argon and other protective atmosphere under closed-loop operation, high security.
• Convenient maintenance: the core components can be quickly disassembled and installed, suitable for frequent material change or multi-species small batch production.

Working Principle of Vertical Ultra-micro Impact Mill

The material is fed into the crushing chamber evenly by the feeding system, such as spiral or vibrating feeder, under the action of high-speed rotating impact rotor, the material is subjected to strong impact, friction, shear and other composite effects, and it is crushed to micron level or even submicron level rapidly.

Subsequently, the crushed powder is brought into the upper part of the dynamic grading system, under the joint action of centrifugal force of the high-speed rotating grading impeller and airflow resistance, the coarse particles are thrown back to the crushing chamber to be crushed again, and the fine powder is taken out by airflow through the grading area to the collection system. The whole system is in a closed negative pressure state to ensure dust-free operation.

For flammable and explosive or easily oxidized materials, inert gas can be used as process gas to build a closed-loop system, which greatly improves safety and product stability.

Typical Application Areas of Vertical Ultra-micro Impact Mill

• Lithium new energy materials: positive and negative electrode materials, ceramic coating powder, silicon and carbon complex.
• Electronic chemicals: high purity oxides, nitrides, conductive carbon materials, etc.
• Medicine and food: Chinese medicine fine powder, additives, plant extracts crushed.
• Non-metallic minerals: talc, kaolin, wollastonite and other fine processing.
• Chemical catalysts: catalytic carriers, additives and other chemical powders that require uniform particle size.
• 3D printing materials: metal oxide powder, spherical ceramics and other high-performance powder.