VSDPM series wide cavity pin mill apply in dry surface modification of ultrafine powder in various areas of non-metallic minerals, battery material, food and medicine such as light calcium carbonate, heavy calcium carbonate, superfine barium sulfate, precipitated barium sulphate, graphite powder, washed Kaolin, calcined coal kaolin, talcum, quartz powder, mica, white carbon black, titanium dioxide, sericite and other materials. Application fields are quite extensive, energy-saving and environmental protection.
The surface activation modification treatment of powder materials by this unit is to send the surface modifier accurately measured by the temperature control adding medicine system to the atomizing chamber through the special atomizing nozzle so that the surface modifier and the dry powder material can be mixed in the atomizing chamber. If a solid modifier is used, the modifier will be heated and melted to a liquid state in the temperature control adding medicine system.
The surface modifier and the powder material to be modified first enter the atomizing chamber for mixing, and then automatically and continuously enter the pin mill, subject to the impact of airflow in different directions within the disk.
The high-speed rotating rotor allows the vortex two-phase flow to form in the specially designed disk so that the material and the modifier are fully dispersed. Relying on the heat generated by the high-speed rotation and the impact, shear and the rubbing action of the powder material, the powder and the modifier heat up quickly in the disk to reach the temperature required to be modified, thus allowing the two fully contact and mix. The modifier can quickly and evenly interact with the surface of the particles, covering the surface of the powder and complete the surface coating modification of the powder. Then the modified powder finished product enters into the back-end airflow classifier system for sorting, and the qualified ultrafine powder will be selected to the nearby cyclone powder collector for cooling and collection.
The whole system is free of dust pollution and easy to operate; the amount of modifier and the energy consumption per unit product is low while the coating rate is high; no additional powder heating device is required, and the temperature in the cavity can be regulated as required. The modified product does not aggregate, and has a strong dispersing and disaggregate effect on the ultrafine powder. It is particularly suitable for the surface modification of ultrafine powder; It can not only achieve the compound modification of more than two kinds of modifying agents and more than two kinds of powder but also form production line with a dry mill to achieve an integrated process of grinding and modification.
1. With a continuously and stably production, disk activation machine has a wide range of applications and is suitable for all scales of industrious production.
2. The modifying agents have a high usage rate, small consumption, the usage amount of stearic acid for activated is around 0.5% to 0.8%.
3. The equipment has a high powder coating rate which can reach 99% and has low energy consumption.
4. The high added value of the activation product brings abundant profits and cuts the time of recycling the cost.
5. The machine adopts a special and mixed atomizing nozzle design and vortex type operation mode. The mode has high modification efficiency and will not destroy the original shape of the power.
6. The material runs under negative pressure with good sealing. No leak of the powder and no pollution.
7. The machine runs under an artificial intelligent control system, with PLC control throughout the process, Flash real-time display, and simple operation can realize online diagnosis of equipment problems and remote monitoring.
