SLG continuous powder surface modification machine – an efficient solution for dry surface modification

In the modern powder material industry, surface modification technology plays a key role. It can not only improve the dispersibility, affinity and application performance of materials, but also is widely used in composite materials, plastic fillers, rubber reinforcement, coating additives and other fields. The surface modification equipment commonly used in industry is mainly divided into two categories: dry method and wet method. Among them, dry surface modification equipment is being favored by more and more companies due to its high efficiency, simple operation and low energy consumption.

This article will focus on a special dry method equipment widely used in the ultrafine powder industry – SLG continuous powder surface modification machine.

powder surface modification machine of Working principle:

Integrated impact, shear and friction, by changing the cyclone vortex and other effects, the powder and modifier are dispersed with high intensity and the powder and surface modifier are forced to impact and collide; during the impact and friction between the powder and the rotor and stator, the required temperature for the modifier to interact with the surface of the powder particles is generated in a limited cavity; the turbulent effect of the vortex cyclone with a changing direction is used to increase the opportunity for the particles to interact with the surface modifier and ensure the action time.

When the SLG type continuous powder surface modifier is working, the material to be modified is fed through the feeder, and after contacting with the surface modifier that is automatically measured and continuously fed, it is discharged from the discharge port through three cylindrical modification chambers in turn. In the modification chamber, the specially designed high-speed rotating rotor and stator impact, shear and rub against the powder material to generate the temperature required for its surface modification. The temperature can be adjusted by the rotor speed, the speed of the powder passing through or the feeding speed and the size of the air door, and the maximum temperature can reach 140℃.

At the same time, the high-speed rotation of the rotor loosens the powder material and forms a vortex two-phase flow, so that the surface modifier can quickly and evenly act on the surface of the powder particles and coat the surface of the particles. Therefore, the structure and working principle of the machine can meet the technical requirements of good dispersion of powder and surface modifier, and equal contact or action opportunities between powder and surface modifier.

Main technical parameters of SLG continuous powder surface modifier

Main performance characteristics:

• Good dispersion of powder and surface modifier, no agglomerate particles in the modified product, and a certain deagglomeration effect on the agglomerate particles in the raw material.
• Continuous metering matching feed and drug (modifier), equal action opportunities between powder and surface modifier, uniform coating of powder surface, and high product coating rate.
• Low energy consumption.
• No dust pollution.
• Continuous production and high degree of automation. Easy to operate.
• Smooth operation.

Applicable fields:

Ultrafine or nano calcium carbonate, calcined kaolin, zinc oxide, magnesium hydroxide, aluminum hydroxide, sericite, barium sulfate, white carbon black, titanium dioxide, talc, mica, clay, glass beads, silicon powder, etc.

It can be used in conjunction with the dry powder making process, or it can be used alone for surface modification and deagglomeration of various ultrafine or nano powders

If you are interested in the SLG series continuous powder surface modification machine, or need to know more technical details and solutions, please feel free to contact our online customer service, or add WeChat and WhatsApp for consultation. Our professional technical team will provide you with one-to-one service.