Comex - Model ZZX -Gravity Particle Classifier Systems

The ZZX gravity classifier is combined with a cyclone, an air filter and a fan. The batch material is gravitationally delivered to the classifier by means of a vibrating feeder. Inside the classifier there are appropriately shaped blades that form a tight labyrinth. The bottom-up airflow lifts the light fraction and removes it from the starting material. It is then pneumatically transported to the cyclone while the coarse fraction sinks to the bottom.

Depending on the flow rate and the amount of separated material, the size of particles that we are able to remove from the feed is determined. The greater the flow, the larger the particles removed from the feed.

The product removed from the feed goes pneumatically to the cyclone. There, almost all particles are separated from the air. The cyclone outlet is connected to a filter where very fine material particles are separated.

The filter outlet is connected to a fan to provide negative pressure in the classification system.

Air flow through the gravity classifier is controlled by a flow sensor. Appropriate air flow ensures the required division of the feed material into fine and coarse fractions.

By using our powdering systems, you ensure:

• High separation efficiency
• The final product with the required grain composition
• Production of high-quality materials
• The grinding process is carried out in high purity conditions
• Particle size control system
• Noticeably lower energy consumption during the pulverizing process

Our powdering technologies provide a wide range of benefits:

• Increase in productivity by 90% (at -70 microns) and 120% (at -40 microns)
• Increased production flexibility due to the elimination of some “wet” stages of the process
• Reduction of environmental pollution to zero (waste-free technology)
• Reduction of the effect of “unnecessary grinding” in the mill
• Full control of the produced material
• Less energy consumption.

Our grinding systems are designed for:

• Metallurgical industry
• Food industry
• Chemical industry
• Medical industry
• Processing industry
• Electronic industry